CN116503328A - A method and system for online evaluation of vehicle-mounted radiation protection barriers for physical examination - Google Patents

Abstract

The invention relates to the technical field of radiation protection barrier production, in particular to a vehicle-mounted radiation protection barrier online evaluation method and system for physical examination, which are used for acquiring technological parameter information of a workpiece to be evaluated, obtaining specification parameters of the workpiece to be evaluated based on the technological parameter information, constructing a simulated stereoscopic model diagram of the workpiece to be evaluated if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold value, prefabricating a crack sample model diagram, and obtaining a screened stereoscopic model diagram based on the simulated stereoscopic model diagram and the crack sample model diagram; and acquiring crack characteristic information in the screened three-dimensional model diagram, evaluating the workpiece to be evaluated based on the crack characteristic information to obtain a first evaluation result or a second evaluation result, and acquiring an optimal repairing scheme of the unqualified semi-finished lead plate by the method, so that the semi-finished lead plate is repaired, and the scrapping cost is reduced.

Description

A method and system for online evaluation of vehicle-mounted radiation protection barriers for physical examination

technical field

The invention relates to the technical field of radiation protection barrier production, in particular to an online evaluation method and system for a vehicle-mounted radiation protection barrier for physical examination.

Background technique

In the medical field, with the continuous improvement of the level of science and technology, the application of high-energy X-rays has become more and more extensive. The medical examination vehicle has played a huge role in daily medical examinations due to its advantages of flexibility and convenience. However, in the process of physical examination and diagnosis, there must be a series of interactions between doctors and patients. Doctors, nurses and doctors will inevitably enter the radiation environment, and there will be huge potential risks to their own health in the long run. Therefore, in the field of interventional radiology, shielding medical personnel is the best radiation protection measure in response to special industry needs. As the non-radioactive element with the largest atomic number, lead element has become the best choice for protecting high-energy rays. Lead plates, lead rubber, inorganic lead glass and other protective barriers have appeared one after another, providing safe and reliable work for interventional radiologists to varying degrees. environment.

The production steps of the lead plate mainly include raw material melting, casting, cooling, online evaluation and testing of semi-finished products, trimming, polishing, finished product testing, packaging and delivery, etc. And after the casting cooling step, it is necessary to carry out online evaluation and detection of semi-finished products. This is because after casting and cooling, the lead plate will be prone to cracks, cracks, and unevenness of the plane, thereby reducing the absorption capacity of the lead plate to X-rays. , damage the protective performance of the lead plate, so in order to prevent the lead plate with unqualified protective performance from further flowing into the subsequent process production steps, so as to avoid the situation of continuing to process and produce the lead plate that has failed, it is necessary to add semi-finished online evaluation detection steps, so that unqualified semi-finished products can be detected in a timely manner, and corresponding processing measures can be taken in time for unqualified semi-finished products. Therefore, this aspect proposes an online evaluation method and system for vehicle-mounted radiation protection barriers for physical examination to achieve this. Function.

Contents of the invention

The invention overcomes the deficiencies of the prior art and provides an on-line evaluation method and system for a vehicle-mounted radiation protection barrier for physical examination.

The technical scheme that the present invention adopts for achieving the above object is:

The invention discloses an on-line evaluation method for a vehicle-mounted radiation protection barrier for physical examination, which comprises the following steps:

Obtain process parameter information of the workpiece to be evaluated, and obtain specification parameters of the workpiece to be evaluated based on the process parameter information; determine a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, and obtain an actual radiation attenuation rate of the workpiece to be evaluated value, if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, then generate a first evaluation result;

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, and obtain based on the simulated three-dimensional model diagram and the crack sample model diagram The filtered three-dimensional model diagram;

Obtain the crack characteristic information in the screened three-dimensional model diagram, evaluate the workpiece to be evaluated based on the crack characteristic information, and obtain a first evaluation result or a second evaluation result.

Preferably, in a preferred embodiment of the present invention, the preset radiation attenuation rate threshold value of the workpiece to be evaluated is determined based on the specification parameters, and the actual radiation attenuation rate value of the workpiece to be evaluated is obtained, if the actual radiation attenuation rate value greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, specifically:

Prefabricating the specimen workpiece, obtaining the standard radiation attenuation rate of the specimen workpiece through an X-ray optical machine, constructing a knowledge map, and importing the standard radiation attenuation rate of the specimen workpiece into the knowledge map;

Acquiring the specification parameters of the workpiece to be evaluated, importing the specification parameters of the workpiece to be evaluated into the knowledge graph, so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of each specimen workpiece in the knowledge graph, and obtain multiple similarity;

Construct a sorting table, and import the multiple similarities into the sorting table for size sorting to obtain the maximum similarity, obtain the standard radiation attenuation rate of the specimen workpiece corresponding to the maximum similarity, and compare it with the maximum similarity The standard radiation attenuation rate of the sample workpiece corresponding to the similarity is marked as the preset radiation attenuation rate threshold of the workpiece to be evaluated;

The workpiece to be evaluated is detected by an X-ray optical machine to obtain the actual radiation attenuation rate value of the workpiece to be evaluated; if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, and the obtained output of the first evaluation result described above.

Preferably, in a preferred embodiment of the present invention, if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, Based on the simulated three-dimensional model figure and the crack sample model figure, the three-dimensional model figure after screening is obtained, specifically:

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, the workpiece to be evaluated is detected by an ultrasonic detector, and the acoustic wave characteristic information fed back by the workpiece to be evaluated is obtained, based on the feedback from the workpiece to be evaluated Construct a simulated three-dimensional model diagram of the workpiece to be evaluated based on the acoustic wave characteristic information;

Prefabricating the crack sample model diagram and building a database, and importing the prefabricated crack sample model diagram into the database;

Carrying out feature extraction on the simulated three-dimensional model diagram to obtain the crack model diagram of the cracks existing in the simulated three-dimensional model diagram; importing the crack model diagram of the cracks existing in the simulated three-dimensional model diagram into the database, and Carry out correlation analysis to described crack model figure and crack sample model figure by gray relational analysis method, obtain the correlation degree corresponding to each crack model figure and crack sample model figure;

Cracks whose correlation degree is greater than a preset correlation are removed from the simulated three-dimensional model diagram, and cracks whose correlation degree is not greater than a preset correlation are retained in the simulated three-dimensional model diagram to obtain a filtered three-dimensional model diagram .

Preferably, in a preferred embodiment of the present invention, the crack characteristic information in the screened three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information to obtain the first evaluation result or the second evaluation result ,Specifically:

Obtaining the crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

If the first ratio is greater than the preset ratio, based on the process parameter information, the process finished product map information of the workpiece to be evaluated is obtained, and the process product model map is constructed based on the process finished product map information;

Obtaining the design reference of the screened three-dimensional model diagram and the finished craft model diagram, constructing a virtual fusion space, and importing the screened three-dimensional model diagram and the finished craft model diagram into the virtual fusion space, and making the The design basis of the screened three-dimensional model diagram and the finished product model diagram coincides in the virtual fusion space;

Retaining the overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram, and removing the non-overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram to obtain the fused three-dimensional model diagram;

Obtaining the crack characteristic information in the fused three-dimensional model diagram, and obtaining a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; Compare with preset ratio;

If the second ratio is not greater than the preset ratio, generate a first evaluation result and output the first evaluation result; if the second ratio is greater than the preset ratio, generate a second evaluation result and output the first evaluation result Output of the second evaluation result described above.

Preferably, in a preferred embodiment of the present invention, the following steps are also included:

If the first ratio is not greater than the preset ratio, a three-dimensional spatial coordinate system is constructed, and the simulated three-dimensional model diagram is imported into the three-dimensional spatial coordinate system, and the simulated three-dimensional model diagram is retrieved in the three-dimensional spatial coordinate system The absolute highest point and the absolute lowest point of each plane;

Obtain the measurement reference of the simulated three-dimensional model diagram, calculate the distance between the absolute highest point of each plane in the simulated three-dimensional model diagram and the measurement reference, and obtain the first distance value; calculate the absolute minimum point and the measurement reference of each plane in the simulated three-dimensional model diagram The distance to get the second distance value;

Calculate the difference between the first distance value and the second distance value of each plane in the simulated three-dimensional model figure to obtain a distance difference, and obtain the flatness of each plane in the simulated three-dimensional model figure based on the distance difference; and Compare the flatness of each plane in the simulated three-dimensional model diagram with the preset flatness;

If none of the flatness is greater than the preset flatness, a second evaluation result is generated, and the second evaluation result is output; if there is at least one plane whose flatness is greater than the preset flatness, then the The plane corresponding to the flatness is marked as an abnormal plane, and the abnormal plane is further evaluated.

Preferably, in a preferred embodiment of the present invention, the abnormal plane is further evaluated, specifically:

Obtaining the flatness corresponding to the abnormal plane, constructing a key search term based on the flatness corresponding to the abnormal plane, searching the database in the big data network according to the key search term, and obtaining a historical repair plan data set;

Obtain the repair success rate corresponding to each historical repair plan in the historical repair plan data set, and remove the historical repair plan whose repair success rate is less than the preset repair success rate from the historical repair plan data set, and obtain a filtered history Restoration proposal dataset;

Obtain the repair cost corresponding to each historical repair plan in the once-filtered historical repair plan data set, and remove the historical repair plan whose repair cost is greater than the preset cost from the historical repair plan data set after the primary screening, to obtain two The historical repair plan data set after the second screening;

Obtain the repair success rate corresponding to the remaining historical repair plan in the historical repair plan data set after the secondary screening, construct a sorting table, and import the repair success rate corresponding to the remaining historical repair plan into the sorting table for size sorting, so as to extract the historical repair plan corresponding to the highest repair success rate from the remaining historical repair plans, and generate a third evaluation result based on the historical repair plan corresponding to the highest repair success rate, and the third evaluation result output.

Another aspect of the present invention discloses an on-line evaluation system for vehicle-mounted radiation protection barriers for physical examination. The on-line evaluation system includes a storage and a processor. The storage stores an online evaluation method program for vehicle-mounted radiation protection barriers. When the barrier online evaluation method program is executed by the processor, the following steps are implemented:

Obtain process parameter information of the workpiece to be evaluated, and obtain specification parameters of the workpiece to be evaluated based on the process parameter information; determine a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, and obtain an actual radiation attenuation rate of the workpiece to be evaluated value, if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, then generate a first evaluation result;

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, and obtain based on the simulated three-dimensional model diagram and the crack sample model diagram The filtered three-dimensional model diagram;

Obtain the crack characteristic information in the screened three-dimensional model diagram, evaluate the workpiece to be evaluated based on the crack characteristic information, and obtain a first evaluation result or a second evaluation result.

Preferably, in a preferred embodiment of the present invention, the preset radiation attenuation rate threshold value of the workpiece to be evaluated is determined based on the specification parameters, and the actual radiation attenuation rate value of the workpiece to be evaluated is obtained, if the actual radiation attenuation rate value greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, specifically:

Prefabricating the specimen workpiece, obtaining the standard radiation attenuation rate of the specimen workpiece through an X-ray optical machine, constructing a knowledge map, and importing the standard radiation attenuation rate of the specimen workpiece into the knowledge map;

Acquiring the specification parameters of the workpiece to be evaluated, importing the specification parameters of the workpiece to be evaluated into the knowledge graph, so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of each specimen workpiece in the knowledge graph, and obtain multiple similarity;

Construct a sorting table, and import the multiple similarities into the sorting table for size sorting to obtain the maximum similarity, obtain the standard radiation attenuation rate of the specimen workpiece corresponding to the maximum similarity, and compare it with the maximum similarity The standard radiation attenuation rate of the sample workpiece corresponding to the similarity is marked as the preset radiation attenuation rate threshold of the workpiece to be evaluated;

The workpiece to be evaluated is detected by an X-ray optical machine to obtain the actual radiation attenuation rate value of the workpiece to be evaluated; if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, and the obtained output of the first evaluation result described above.

Preferably, in a preferred embodiment of the present invention, the crack characteristic information in the screened three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information to obtain the first evaluation result or the second evaluation result ,Specifically:

Obtaining the crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

If the first ratio is greater than the preset ratio, based on the process parameter information, the process finished product map information of the workpiece to be evaluated is obtained, and the process product model map is constructed based on the process finished product map information;

Obtaining the design reference of the screened three-dimensional model diagram and the finished craft model diagram, constructing a virtual fusion space, and importing the screened three-dimensional model diagram and the finished craft model diagram into the virtual fusion space, and making the The design basis of the screened three-dimensional model diagram and the finished product model diagram coincides in the virtual fusion space;

Retaining the overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram, and removing the non-overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram to obtain the fused three-dimensional model diagram;

Obtaining the crack characteristic information in the fused three-dimensional model diagram, and obtaining a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; Compare with preset ratio;

If the second ratio is not greater than the preset ratio, generate a first evaluation result and output the first evaluation result; if the second ratio is greater than the preset ratio, generate a second evaluation result and output the first evaluation result Output of the second evaluation result described above.

Preferably, in a preferred embodiment of the present invention, the following steps are also included:

If the first ratio is not greater than the preset ratio, a three-dimensional spatial coordinate system is constructed, and the simulated three-dimensional model diagram is imported into the three-dimensional spatial coordinate system, and the simulated three-dimensional model diagram is retrieved in the three-dimensional spatial coordinate system The absolute highest point and the absolute lowest point of each plane;

Obtain the measurement reference of the simulated three-dimensional model diagram, calculate the distance between the absolute highest point of each plane in the simulated three-dimensional model diagram and the measurement reference, and obtain the first distance value; calculate the absolute minimum point and the measurement reference of each plane in the simulated three-dimensional model diagram The distance to get the second distance value;

Calculate the difference between the first distance value and the second distance value of each plane in the simulated three-dimensional model figure to obtain a distance difference, and obtain the flatness of each plane in the simulated three-dimensional model figure based on the distance difference; and Compare the flatness of each plane in the simulated three-dimensional model diagram with the preset flatness;

If none of the flatness is greater than the preset flatness, a second evaluation result is generated, and the second evaluation result is output; if there is at least one plane whose flatness is greater than the preset flatness, then the The plane corresponding to the flatness is marked as an abnormal plane, and the abnormal plane is further evaluated.

The present invention solves the technical defects existing in the background technology, and the present invention has the following beneficial effects: the semi-finished stereotyped plate can be evaluated by this method, and if the unqualified semi-finished stereotyped plate is evaluated, its protective performance will be improved after subsequent process steps. If it can meet the qualified standard, it will flow into the subsequent process steps normally without additional repair measures, realize the function of intelligent online evaluation, and avoid misjudgment; After step processing, its protective performance still cannot meet the qualified standard. At this time, it should be scrapped immediately to prevent it from continuing to flow into subsequent process steps, and to avoid the phenomenon that even if the processed finished product is a waste product, it is still processed. The processing cost can be reduced. And through this party, we can obtain the best repair plan for unqualified semi-finished lead plates, so as to repair the semi-finished lead plates to reduce the cost of scrapping.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain the drawings of other embodiments according to these drawings without creative work.

Fig. 1 is a first method flow chart of the on-line evaluation method for vehicle-mounted radiation protection barriers used in physical examination;

Fig. 2 is a second method flow chart of the on-line assessment method for vehicle-mounted radiation protection barriers for medical examination;

Fig. 3 is a third method flow chart of the on-line evaluation method for vehicle-mounted radiation protection barriers used in physical examination;

Fig. 4 is a system block diagram of an on-line evaluation system for a vehicle-mounted radiation protection barrier for physical examination.

Detailed ways

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

The invention discloses an on-line evaluation method for a vehicle-mounted radiation protection barrier for physical examination, as shown in Figure 1, comprising the following steps:

S102: Obtain process parameter information of the workpiece to be evaluated, and obtain specification parameters of the workpiece to be evaluated based on the process parameter information; determine a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, and obtain actual radiation of the workpiece to be evaluated an attenuation rate value, if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated;

S104: If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, based on the simulated three-dimensional model diagram and the crack sample model Figure obtains the three-dimensional model figure after screening;

S106: Acquire crack characteristic information in the screened three-dimensional model diagram, evaluate the workpiece to be evaluated based on the crack characteristic information, and obtain a first evaluation result or a second evaluation result.

It should be noted that the process parameter information includes the process steps of lead plate processing and production, the processing engineering drawing information corresponding to each process step, the processing parameter information of sub-equipment, etc., and the process parameter information is obtained by the designer in advance design and planning. The specification parameters are size parameters.

This method can be used to evaluate the semi-finished stereotyped sheet. If it is evaluated that the protective performance of the unqualified semi-finished stereotyped sheet can reach the qualified standard after being processed in the subsequent process steps, it will be allowed to flow into the subsequent process steps normally without additional work. The repair measures realize the function of intelligent online evaluation and avoid misjudgment; It is scrapped to prevent it from continuing to flow into subsequent process steps, avoiding the phenomenon that the finished product is still processed even if it is a waste product, and can reduce processing costs.

Preferably, in a preferred embodiment of the present invention, the preset radiation attenuation rate threshold value of the workpiece to be evaluated is determined based on the specification parameters, and the actual radiation attenuation rate value of the workpiece to be evaluated is obtained, if the actual radiation attenuation rate value Greater than the preset radiation attenuation rate threshold, then generate the first evaluation result, as shown in Figure 2, specifically:

S202: Prefabricate the specimen workpiece, obtain the standard radiation attenuation rate of the specimen workpiece through an X-ray optical machine, construct a knowledge map, and import the standard radiation attenuation rate of the specimen workpiece into the knowledge map;

S204: Obtain the specification parameters of the workpiece to be evaluated, and import the specification parameters of the workpiece to be evaluated into the knowledge graph, so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of each sample workpiece in the knowledge graph, and obtain Multiple similarities;

S206: Build a sorting table, and import the multiple similarities into the sorting table for size sorting to obtain the maximum similarity, obtain the standard radiation attenuation rate of the specimen workpiece corresponding to the maximum similarity, and compare it with the The standard radiation attenuation rate of the sample workpiece corresponding to the above maximum similarity is marked as the preset radiation attenuation rate threshold of the workpiece to be evaluated;

S208: Detect the workpiece to be evaluated by X-ray optical machine to obtain the actual radiation attenuation rate value of the workpiece to be evaluated; if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, generate a first evaluation result, and Outputting the first evaluation result.

It should be noted that, firstly, qualified specimens of various sizes are prefabricated in advance, and the standard radiation attenuation rate corresponding to each specimen is measured by an X-ray optical machine, so as to obtain a knowledge map, so that the system can be quickly paired in the future Identify the preset radiation attenuation rate thresholds corresponding to the semi-finished lead plates to be evaluated with different specification parameters. Specifically, when performing on-line evaluation and detection of the semi-finished lead plate after the casting cooling step, the control system will directly read the process parameter information of the produced lead plate in the data storage, so as to quickly obtain the information of the semi-finished lead plate to be evaluated. The corresponding specification parameters, and import the specification parameters into the knowledge map for comparison and matching, so as to quickly obtain the preset radiation attenuation rate threshold of the semi-finished lead plate to be evaluated. Then by X-ray optical machine to detect the semi-finished lead plate to be evaluated, the actual radiation attenuation rate value of the semi-finished lead plate to be evaluated is obtained; if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold value, it can be It is explained that the radiation absorption ability of the semi-finished stereotyped plate is qualified, and the quality inspection of the semi-finished stereotyped plate is qualified. At this time, the first evaluation result is generated so that the semi-finished stereotyped plate can normally flow into the next process step (edge trimming). In addition, it should be noted that the radiation attenuation rate is one of the indicators for evaluating the absorption performance of the lead plate, and the radiation attenuation rate indicates the ratio of the radiation received by the lead plate under different conditions outside the radiation beam and inside the radiation beam. Through this method, semi-finished stereotypes with qualified performance can be quickly evaluated and screened out, so that semi-finished stereotypes with qualified performance can normally flow into subsequent process steps, and by building a knowledge map, semi-finished stereotypes to be evaluated can be quickly obtained The preset radiation attenuation rate threshold can reduce the amount of calculation of the system and improve the robustness.

Preferably, in a preferred embodiment of the present invention, if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, Based on the simulated three-dimensional model figure and the crack sample model figure, the three-dimensional model figure after screening is obtained, specifically:

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, the workpiece to be evaluated is detected by an ultrasonic detector, and the acoustic wave characteristic information fed back by the workpiece to be evaluated is obtained, based on the feedback from the workpiece to be evaluated Construct a simulated three-dimensional model diagram of the workpiece to be evaluated based on the acoustic wave characteristic information;

Prefabricating the crack sample model diagram and building a database, and importing the prefabricated crack sample model diagram into the database;

Carrying out feature extraction on the simulated three-dimensional model diagram to obtain the crack model diagram of the cracks existing in the simulated three-dimensional model diagram; importing the crack model diagram of the cracks existing in the simulated three-dimensional model diagram into the database, and Carry out correlation analysis to described crack model figure and crack sample model figure by gray relational analysis method, obtain the correlation degree corresponding to each crack model figure and crack sample model figure;

Cracks whose correlation degree is greater than a preset correlation are removed from the simulated three-dimensional model diagram, and cracks whose correlation degree is not greater than a preset correlation are retained in the simulated three-dimensional model diagram to obtain a filtered three-dimensional model diagram .

It should be noted that the prefabricated crack sample model diagram is a micro-crack with a width smaller than a preset width value, a height smaller than a preset height value, and a length smaller than a preset length value. This kind of micro-crack can be understood as a finite length. The three-dimensional model diagram of this kind of micro-crack can be drawn in advance by three-dimensional modeling software. In addition, it needs to be explained that since this kind of microcracks are linear cracks, the influence of this kind of microcracks on the protective performance of lead plates is minimal, and this kind of microcracks is an inevitable phenomenon in casting and cooling processes, so in the lead When evaluating the protective performance of the board, it is necessary to exclude such microcracks.

It should be noted that if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, it can be explained that the radiation absorption capacity of the semi-finished stereotyped plate is unqualified, and the current quality inspection of the semi-finished stereotyped plate At this time, it is necessary to further evaluate the reasons for the unqualified radiation absorption capacity of the semi-finished lead plate. Specifically, the ultrasonic detector is used to obtain the acoustic wave characteristic information fed back by the semi-finished lead plate to be evaluated. The acoustic wave characteristic information includes the wavelength, frequency, and amplitude of the sound wave, and then according to the acoustic wave characteristic information through three-dimensional modeling The software constructs the simulated three-dimensional model figure of the semi-finished lead plate to be evaluated, and the simulated three-dimensional model figure contains the crack information (such as cracks, cracks, micro-cracks, micro-cracks) inside or on the surface of the semi-finished lead plate to be evaluated. wait). Then, feature extraction is performed on the simulated three-dimensional model diagram by three-dimensional software to obtain crack model diagrams of each crack in the simulated three-dimensional model diagram, and correlation analysis is performed on the crack model diagram and the crack sample model diagram by gray correlation analysis method, The cracks whose correlation degree is greater than the preset correlation are removed from the simulated solid model map, and the cracks whose correlation degree is not greater than the preset correlation are retained in the simulated solid model map to obtain the filtered solid model map. Through this method, invalid micro-cracks in the simulated three-dimensional model can be eliminated, thereby retaining effective cracks such as cracks, cracks, cracks, etc. in the simulated three-dimensional model, and then improving the evaluation accuracy of crack influencing factors in the simulated three-dimensional model. Subsequent more accurate assessment of the actual influencing factors that cause the unqualified radiation absorption capacity of the semi-finished lead plate, so that the system can formulate more accurate and effective measures for the actual influencing factors; and by building a database, through the crack model The correlation analysis between the graph and the crack sample model graph can further improve the system operation speed and improve the evaluation efficiency.

Preferably, in a preferred embodiment of the present invention, the crack characteristic information in the screened three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information to obtain the first evaluation result or the second evaluation result ,Specifically:

Obtaining the crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

If the first ratio is greater than the preset ratio, based on the process parameter information, the process finished product map information of the workpiece to be evaluated is obtained, and the process product model map is constructed based on the process finished product map information;

Obtaining the design reference of the screened three-dimensional model diagram and the finished craft model diagram, constructing a virtual fusion space, and importing the screened three-dimensional model diagram and the finished craft model diagram into the virtual fusion space, and making the The design basis of the screened three-dimensional model diagram and the finished product model diagram coincides in the virtual fusion space;

Retaining the overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram, and removing the non-overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram to obtain the fused three-dimensional model diagram;

Obtaining the crack characteristic information in the fused three-dimensional model diagram, and obtaining a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; Compare with preset ratio;

If the second ratio is not greater than the preset ratio, generate a first evaluation result and output the first evaluation result; if the second ratio is greater than the preset ratio, generate a second evaluation result and output the first evaluation result Output of the second evaluation result described above.

It should be noted that, when the screened three-dimensional model diagram is obtained, the crack characteristic information in the screened three-dimensional model diagram is obtained, and the crack characteristic information includes the depth, width, length and position information of the crack; The characteristic information calculates the volume value of the remaining cracks in the filtered three-dimensional model diagram, so as to calculate the total volume value of the remaining cracks in the filtered three-dimensional model diagram, and compares the total volume value of the remaining cracks with the filtered three-dimensional model diagram Compared with the total volume value of the model, the first ratio can be obtained, and the first ratio can be understood as the proportion of the crack concentration in the screened three-dimensional model diagram. If the first ratio is greater than the preset ratio, it means that the proportion of the crack concentration in the screened three-dimensional model diagram is too large, indicating that there are many cracks in the screened three-dimensional model diagram, and the existence of too many cracks reduces the quality of the semi-finished lead plate. The radiation absorption capacity of the semi-finished lead plate is damaged, which means that the current unqualified protective performance of the semi-finished lead plate is caused by too many cracks. At this time, the following process steps can be combined with the current unqualified protective performance of the lead plate. The semi-finished lead plate is continuously evaluated. Specifically, by obtaining the information of the finished process drawing, the information of the finished process drawing is the engineering drawing of the finished lead plate after the semi-finished lead plate has been processed by subsequent trimming, polishing and other process steps, and then obtained The position information of the design basis of the screened three-dimensional model diagram and the finished product model diagram, and construct a virtual fusion space through 3D software, and make the design basis of the screened three-dimensional model diagram and the finished product model diagram coincide in the virtual fusion space and keep the overlapping model part of the three-dimensional model figure after the screening and the finished product model figure of the process, and remove the non-overlapping model part of the three-dimensional model figure after the screening and the model figure of the finished process product, in this way just can pass three-dimensional software to The semi-finished lead plate with unqualified protective performance is subjected to the simulation processing of the subsequent process steps. The fused three-dimensional model diagram can be understood as the semi-finished lead plate with unqualified protective performance after subsequent process steps such as trimming and polishing. The obtained three-dimensional model diagram of the finished product, and the crack concentration ratio in the fused three-dimensional model diagram may be further reduced. , some cracks are just located in the edge trimming area. At this time, after the cutting process steps, these cracks can be eliminated. At this time, the crack concentration ratio in the fused three-dimensional model map will decrease, so at this time it can be passed. Calculate the second ratio (the calculation principle is the same as the calculation of the first ratio), if the second ratio is not greater than the preset ratio, although the semi-finished lead plate has too many cracks in the current semi-finished online evaluation and detection process As a result, its current protective performance is unqualified, but when the semi-finished lead plate normally undergoes subsequent process steps such as trimming and grinding, part of its cracks can be eliminated by these process steps, and the semi-finished lead plate is then The lead plate is evaluated as a qualified product, and the first evaluation result is generated at this time, so that the semi-finished lead plate can normally flow into the next process step (trimming). On the contrary, if the second ratio is greater than the preset ratio, it can be explained that even if the semi-finished lead plate continues to flow into the subsequent process steps for processing, there will still be too many cracks in the processed finished product, and the finished product The protective performance of the lead plate is unqualified, and in the lead plate production process, since the crack defect is a defect that is difficult to repair or cannot be repaired, the semi-finished lead plate is evaluated as an unqualified product at this time, and the second evaluation result is generated at this time. The semi-finished stereotyped plate needs to be scrapped immediately, so as to prevent the semi-finished stereotyped plate from flowing into the subsequent process steps. This method can be used to evaluate the semi-finished lead plate with unqualified protective performance. If the protective performance of the semi-finished lead plate with unqualified protective performance can reach the qualified standard after the subsequent process steps, it will be allowed to flow normally. Subsequent process steps are enough, no additional processing measures are required, and the function of intelligent online evaluation is realized to avoid misjudgment; and if the semi-finished lead plate with unqualified protection performance is processed by subsequent process steps, its protection performance If it is still unable to meet the qualified standard, it will be scrapped immediately to prevent it from continuing to flow into subsequent process steps, avoiding the phenomenon that the finished product is still processed even if it is a waste product, and can reduce processing costs.

Preferably, in a preferred embodiment of the present invention, the following steps are also included:

If the first ratio is not greater than the preset ratio, a three-dimensional spatial coordinate system is constructed, and the simulated three-dimensional model diagram is imported into the three-dimensional spatial coordinate system, and the simulated three-dimensional model diagram is retrieved in the three-dimensional spatial coordinate system The absolute highest point and the absolute lowest point of each plane;

Obtain the measurement reference of the simulated three-dimensional model diagram, calculate the distance between the absolute highest point of each plane in the simulated three-dimensional model diagram and the measurement reference, and obtain the first distance value; calculate the absolute minimum point and the measurement reference of each plane in the simulated three-dimensional model diagram The distance to get the second distance value;

Calculate the difference between the first distance value and the second distance value of each plane in the simulated three-dimensional model figure to obtain a distance difference, and obtain the flatness of each plane in the simulated three-dimensional model figure based on the distance difference; and Compare the flatness of each plane in the simulated three-dimensional model diagram with the preset flatness;

If none of the flatness is greater than the preset flatness, a second evaluation result is generated, and the second evaluation result is output; if there is at least one plane whose flatness is greater than the preset flatness, then the The plane corresponding to the flatness is marked as an abnormal plane, and the abnormal plane is further evaluated.

It should be noted that if the first ratio is not greater than the preset ratio, it means that the proportion of the crack concentration in the screened three-dimensional model map is not large, and it means that the crack concentration in the semi-finished lead plate is within the allowable range. , indicating that the current unqualified protective performance of the semi-finished lead plate is not caused by crack defects. At this time, it is necessary to continue to evaluate the actual cause of the current unqualified protective performance of the semi-finished lead plate. Specifically, through Three-dimensional software such as SolidWorks and Maya construct a three-dimensional coordinate system in space, and retrieve the absolute highest point and absolute lowest point of each plane in the simulated three-dimensional model diagram in the three-dimensional coordinate system, wherein the retrieval reference can be specified in the process parameter information Locate the reference plane, thereby calculating the flatness of each plane in the simulated three-dimensional model diagram, that is, the flatness of each plane of the semi-finished lead plate, if the flatness is not greater than the preset flatness, it means that the current protection of the semi-finished lead plate The unqualified performance is not caused by excessive planarity, indicating that the actual reason for the current unqualified protection performance of the semi-finished lead plate is not caused by the production process steps, it is most likely due to the use of non-standard raw materials At this time, the semi-finished stereotyped plate is evaluated as an unqualified product, and a second evaluation result is generated at this time. At this time, the semi-finished stereotyped plate needs to be scrapped immediately to prevent the semi-finished stereotyped plate from flowing into the subsequent process steps. If the flatness of the existing plane is greater than the preset flatness, the thickness of the lead plate will be uneven and exceed the allowable error range, resulting in weak local penetration resistance. At this time, it means that the current protection performance of the semi-finished lead plate is not good. The pass is caused by excessive flatness. At this time, the plane whose flatness is greater than the preset flatness is marked as an abnormal plane, and the abnormal plane is further evaluated, and then it is judged whether the abnormal plane needs to be repaired. Through this method, it can be further evaluated whether the current unqualified protection performance of the semi-finished lead plate is caused by excessive flatness.

In addition, it should be noted that in the production process of the lead plate, if the flatness of the lead plate is too large, the repair method of coating can be used to repair the lead plate, so that the protective performance of the lead plate is compliant.

Preferably, in a preferred embodiment of the present invention, the abnormal plane is further evaluated, as shown in Figure 3, specifically:

S302: Obtain the flatness corresponding to the abnormal plane, construct a key search term based on the flatness corresponding to the abnormal plane, search the database in the big data network according to the key search term, and obtain a historical repair plan data set;

S304: Obtain the repair success rate corresponding to each historical repair plan in the historical repair plan data set, and remove the historical repair plan whose repair success rate is lower than the preset repair success rate from the historical repair plan data set, and obtain the result after one screening A dataset of historical repair proposals;

S306: Obtain the repair cost corresponding to each historical repair plan in the once-filtered historical repair plan data set, and remove the historical repair plan whose repair cost is greater than the preset cost from the once-filtered historical repair plan data set, Obtain the historical repair plan data set after secondary screening;

S308: Obtain the restoration success rates corresponding to the remaining historical restoration plans in the historical restoration plan data set after the secondary screening, construct a sorting table, and import the restoration success rates corresponding to the remaining historical restoration plans into the sorting table Perform size sorting to extract the historical repair plan corresponding to the highest repair success rate from the remaining historical repair plans, and generate a third evaluation result based on the historical repair plan corresponding to the highest repair success rate, and the third Evaluation result output.

It should be noted that when it is estimated that there is a plane with too large flatness in the semi-finished lead plate, by obtaining the flatness corresponding to the abnormal plane, and then constructing a key search term based on the flatness of the abnormal plane, and then in the big data Retrieve the historical repair plan for repairing the excessively large lead plate plane, so as to gather the historical repair plan data sets to obtain the historical repair plan data set; then obtain the repair success rate corresponding to each historical repair plan in the historical repair plan data set , removing the historical restoration schemes whose restoration success rate is less than the preset restoration success rate from the historical restoration proposal data set to obtain a filtered historical restoration proposal data set, thereby removing the historical restoration proposals with too low restoration success rate, and retaining The historical repair plan with a high repair success rate, so as to ensure the repair success rate when repairing the semi-finished lead plate, and avoid repair scrapping, thereby avoiding the situation of increasing costs. Next, obtain the repair cost corresponding to each historical repair plan in the once-filtered historical repair plan data set, and remove the historical repair plan whose repair cost is greater than the preset cost from the once-filtered historical repair plan data set , to obtain the historical repair plan data set after the secondary screening, so as to eliminate the historical repair plan with excessive repair cost, so as to avoid the situation that the repair cost is greater than the scrap cost of the semi-finished lead plate when repairing the semi-finished lead plate, thereby avoiding There is an increase in processing costs. Then the historical repair plan corresponding to the highest repair success rate is extracted from the historical repair plan data set after the secondary screening, and based on the historical repair plan corresponding to the highest repair success rate as the final repair plan of the semi-finished lead plate, the second is generated. Three evaluation results, and output the third evaluation result, so that the semi-finished lead plate is sent to the repair station for repair, and in the repair process, the repair station will automatically read the final repair plan of the semi-finished lead plate, thus based on The final restoration plan repairs the semi-finished stereotyped plate, and after the restoration is completed, the semi-finished stereotyped plate can be put into subsequent process steps. Through this party, we can evaluate the semi-finished lead plates with unqualified flatness, and can obtain the best repair plan according to the corresponding flatness, so as to repair the semi-finished lead plates to reduce the cost of scrapping.

In addition, the on-line evaluation method for a vehicle-mounted radiation protection barrier for physical examination also includes the following steps:

If the repair success rate of each historical repair plan in the historical repair plan data set is less than the preset repair success rate, then the curved surface model map of the abnormal plane is extracted from the simulated three-dimensional model map, and the curved surface model map is Compare with the preset plane model diagram to get the model difference;

Obtain the material property information of the current lead plate to be evaluated, and determine the elastic yield limit load value of the abnormal plane based on the material property;

Based on the model difference and the elastic yield limit load value, the paint volume value required to repair the abnormal plane is calculated.

It should be noted that if the repair success rate of each historical repair plan in the historical repair plan data set is lower than the preset repair success rate, at this time, to ensure the repair success rate of the abnormal plane repair, it is necessary to automatically formulate through the system Corresponding repair plan, instead of using the historical repair plan to repair the abnormal plane, this method can automatically formulate a repair plan for the abnormal plane, thereby ensuring the success rate of repair when repairing the abnormal plane, and avoiding the situation of repairing and scrapping .

In addition, the on-line evaluation method for a vehicle-mounted radiation protection barrier for physical examination also includes the following steps:

Obtaining a simulated three-dimensional model diagram of each workpiece to be evaluated within a preset time period, and dividing the simulated three-dimensional model diagram into several sub-regions;

Constructing statistical tables of cracks in each sub-region respectively, obtaining the crack characteristic information of each crack in each sub-region, calculating the volume value of each crack based on the crack characteristic information, and judging whether the volume value is greater than a preset volume value, if is greater than, mark and extract the crack in the sub-area, and add 1 to the total number of the crack statistical table in the sub-area;

After the statistics of the simulated three-dimensional model diagram of each workpiece to be evaluated within the preset time period are completed, the total number on the crack statistics table on each sub-area is obtained, and the total number is compared with the preset value to obtain the crack ratio ; Judging whether the crack ratio is greater than a preset ratio;

If the crack ratio is greater than the preset ratio, mark the sub-region corresponding to the crack ratio greater than the preset ratio as a crack frequent area; if the crack ratio is not greater than the preset ratio, then Marking the sub-region corresponding to the crack ratio not greater than the preset ratio as the crack accidental region;

Obtain the working status of each casting sub-equipment in the casting process steps within the preset time period, and mark the sub-equipment whose working status is the preset working status as the relevant sub-equipment; use the gray correlation analysis method to analyze the crack frequent areas and related sub-equipment Carry out correlation degree calculation to obtain several correlation degrees;

Obtain the relevant sub-equipment corresponding to the phase luminosity greater than the preset phase pole degree, and import the relevant sub-equipment corresponding to the correlation degree greater than the preset correlation degree into the Bayesian network for secondary simulation association to obtain abnormal sub-equipment information , and output the abnormal sub-device information.

It should be noted that when the volume value is greater than the preset volume value, it means that the crack will affect the protective performance of the lead plate, and at this time, the crack in the sub-region is marked and extracted. If a certain sub-area is a crack-prone area, it means that the occurrence of cracks in this sub-area is not an accidental event. At this time, it can be explained that the relevant equipment in the corresponding process step has failed. If a certain sub-area is an accidental crack area, it means that the occurrence of cracks in this sub-area is an accidental event, which is a normal situation. The gray correlation analysis method is used to calculate the correlation between the crack frequent area and the relevant sub-equipment, so as to preliminarily screen out the sub-equipment that may be abnormal, and then input the sub-equipment that may be abnormal into the Bayesian network for secondary simulation Correlation, and then determine the abnormal sub-equipment, so as to quickly identify the sub-equipment that has failed.

In addition, the on-line evaluation method for a vehicle-mounted radiation protection barrier for physical examination also includes the following steps:

Acquiring the evaluation result of each evaluation workpiece, judging whether the evaluation result is a preset result, if so, obtaining the crack characteristic information of the scrapped workpiece in the evaluation result, and determining the corresponding cracks in the scrapped workpiece based on the crack characteristic information Crack position information and crack volume information;

Determining an effective area and an invalid area of the scrapped workpiece based on the crack position information and crack volume information corresponding to each crack, and obtaining a size parameter of the effective area;

Obtain historical order information of the product, and determine the size parameters of each historical order product based on the historical order information of the product;

If the size parameter of the effective area is greater than the size parameter of a certain historical order product, the scrapped workpiece is marked as an available product.

It should be noted that the preset result is the second evaluation result. If the crack concentration value in a certain area in the scrapped workpiece is less than the preset concentration value, since the crack concentration value in this area is not large, the anti-penetration ability of this area in the scrapped lead plate is actually qualified, so this area can be marked is an effective area, and determine the size parameters of the effective area. Due to the different needs of customers, the size parameters of each historical order product are also different. For example, some customers need a smaller size lead plate, while some customers need a larger size lead plate. If there is an effective area larger than a certain The size parameters of the historical order products. At this time, the scrapped workpiece can be stored first. When there is a suitable purchase order, the scrapped workpiece can be cut at this time to separate the effective area, so that a part of the scrapped workpiece can be converted In this way, resources can be used to the greatest extent, and scrap costs can be further reduced.

Another aspect of the present invention discloses an on-line evaluation system for vehicle-mounted radiation protection barriers for physical examination. The on-line evaluation system includes a storage 41 and a processor 62. The storage 41 stores the online evaluation method program for vehicle-mounted radiation protection barriers. When the vehicle-mounted radiation protection barrier online evaluation method program is executed by the processor 62, as shown in Figure 4, the following steps are realized:

Obtain process parameter information of the workpiece to be evaluated, and obtain specification parameters of the workpiece to be evaluated based on the process parameter information; determine a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, and obtain an actual radiation attenuation rate of the workpiece to be evaluated value, if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, then generate a first evaluation result;

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, construct a simulated three-dimensional model diagram of the workpiece to be evaluated, and prefabricate the crack sample model diagram, and obtain based on the simulated three-dimensional model diagram and the crack sample model diagram The filtered three-dimensional model diagram;

Obtain the crack characteristic information in the screened three-dimensional model diagram, evaluate the workpiece to be evaluated based on the crack characteristic information, and obtain a first evaluation result or a second evaluation result.

Preferably, in a preferred embodiment of the present invention, the preset radiation attenuation rate threshold value of the workpiece to be evaluated is determined based on the specification parameters, and the actual radiation attenuation rate value of the workpiece to be evaluated is obtained, if the actual radiation attenuation rate value greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, specifically:

Prefabricating the specimen workpiece, obtaining the standard radiation attenuation rate of the specimen workpiece through an X-ray optical machine, constructing a knowledge map, and importing the standard radiation attenuation rate of the specimen workpiece into the knowledge map;

Acquiring the specification parameters of the workpiece to be evaluated, importing the specification parameters of the workpiece to be evaluated into the knowledge graph, so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of each specimen workpiece in the knowledge graph, and obtain multiple similarity;

Construct a sorting table, and import the multiple similarities into the sorting table for size sorting to obtain the maximum similarity, obtain the standard radiation attenuation rate of the specimen workpiece corresponding to the maximum similarity, and compare it with the maximum similarity The standard radiation attenuation rate of the sample workpiece corresponding to the similarity is marked as the preset radiation attenuation rate threshold of the workpiece to be evaluated;

The workpiece to be evaluated is detected by an X-ray optical machine to obtain the actual radiation attenuation rate value of the workpiece to be evaluated; if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, and the obtained output of the first evaluation result described above.

Preferably, in a preferred embodiment of the present invention, the crack characteristic information in the filtered three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information, to obtain the first evaluation result or the second evaluation result ,Specifically:

Obtaining the crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

If the first ratio is greater than the preset ratio, based on the process parameter information, the process finished product map information of the workpiece to be evaluated is obtained, and the process product model map is constructed based on the process finished product map information;

Obtaining the design reference of the screened three-dimensional model diagram and the finished craft model diagram, constructing a virtual fusion space, and importing the screened three-dimensional model diagram and the finished craft model diagram into the virtual fusion space, and making the The design basis of the screened three-dimensional model diagram and the finished product model diagram coincides in the virtual fusion space;

Retaining the overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram, and removing the non-overlapping model parts of the screened three-dimensional model diagram and the finished product model diagram to obtain the fused three-dimensional model diagram;

Obtaining the crack characteristic information in the fused three-dimensional model diagram, and obtaining a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; Compare with preset ratio;

If the second ratio is not greater than the preset ratio, generate a first evaluation result and output the first evaluation result; if the second ratio is greater than the preset ratio, generate a second evaluation result and output the first evaluation result Output of the second evaluation result described above.

Preferably, in a preferred embodiment of the present invention, the following steps are also included:

If the first ratio is not greater than the preset ratio, a three-dimensional spatial coordinate system is constructed, and the simulated three-dimensional model diagram is imported into the three-dimensional spatial coordinate system, and the simulated three-dimensional model diagram is retrieved in the three-dimensional spatial coordinate system The absolute highest point and the absolute lowest point of each plane;

Obtain the measurement reference of the simulated three-dimensional model diagram, calculate the distance between the absolute highest point of each plane in the simulated three-dimensional model diagram and the measurement reference, and obtain the first distance value; calculate the absolute minimum point and the measurement reference of each plane in the simulated three-dimensional model diagram The distance to get the second distance value;

Calculate the difference between the first distance value and the second distance value of each plane in the simulated three-dimensional model figure to obtain a distance difference, and obtain the flatness of each plane in the simulated three-dimensional model figure based on the distance difference; and Compare the flatness of each plane in the simulated three-dimensional model diagram with the preset flatness;

If none of the flatness is greater than the preset flatness, a second evaluation result is generated, and the second evaluation result is output; if there is at least one plane whose flatness is greater than the preset flatness, then the The plane corresponding to the flatness is marked as an abnormal plane, and the abnormal plane is further evaluated.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the mutual coupling, or direct coupling, or communication connection between the various components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed to multiple network units; Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention can be integrated into one processing unit, or each unit can be used as a single unit, or two or more units can be integrated into one unit; the above-mentioned integration The unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in computer-readable storage media. When the program is executed, the execution includes: The steps of the foregoing method embodiment; and the foregoing storage medium includes: various possible storage devices such as removable storage devices, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks, etc. A medium that stores program code.

Alternatively, if the above-mentioned integrated units of the present invention are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for Make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the methods in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as removable storage devices, ROM, RAM, magnetic disks or optical disks.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present invention, and should cover all Within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. An on-line evaluation method of an on-vehicle radiation protection barrier for physical examination is characterized by comprising the following steps:

acquiring process parameter information of a workpiece to be evaluated, and acquiring specification parameters of the workpiece to be evaluated based on the process parameter information; determining a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, acquiring an actual radiation attenuation rate value of the workpiece to be evaluated, and generating a first evaluation result if the actual radiation attenuation rate value is larger than the preset radiation attenuation rate threshold;

if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, constructing a simulated stereoscopic model diagram of the workpiece to be evaluated, prefabricating a crack sample model diagram, and obtaining a screened stereoscopic model diagram based on the simulated stereoscopic model diagram and the crack sample model diagram;

and acquiring crack characteristic information in the screened three-dimensional model diagram, and evaluating the workpiece to be evaluated based on the crack characteristic information to obtain a first evaluation result or a second evaluation result.

2. The on-line evaluation method of an on-vehicle radiation protection barrier for physical examination according to claim 1, wherein the method is characterized in that a preset radiation attenuation rate threshold of a workpiece to be evaluated is determined based on the specification parameters, an actual radiation attenuation rate value of the workpiece to be evaluated is obtained, and if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, specifically:

Prefabricating a specimen workpiece, acquiring a standard radiation attenuation rate of the specimen workpiece through an X-ray machine, constructing a knowledge graph, and introducing the standard radiation attenuation rate of the specimen workpiece into the knowledge graph;

acquiring specification parameters of a workpiece to be evaluated, and importing the specification parameters of the workpiece to be evaluated into the knowledge graph so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of all sample workpieces in the knowledge graph to obtain a plurality of similarities;

constructing a sorting table, importing the multiple similarities into the sorting table to sort the sizes of the multiple similarities to obtain the maximum similarity, obtaining the standard radiation attenuation rate of the sample workpiece corresponding to the maximum similarity, and marking the standard radiation attenuation rate of the sample workpiece corresponding to the maximum similarity as a preset radiation attenuation rate threshold of the workpiece to be evaluated;

detecting a workpiece to be evaluated through an X-ray machine to obtain an actual radiation attenuation value of the workpiece to be evaluated; and if the actual radiation attenuation rate value is larger than the preset radiation attenuation rate threshold, generating a first evaluation result and outputting the first evaluation result.

3. The on-line evaluation method of an on-vehicle radiation protection barrier for physical examination according to claim 1, wherein if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, a simulated stereoscopic model diagram of a workpiece to be evaluated is constructed, a crack sample model diagram is prefabricated, and a screened stereoscopic model diagram is obtained based on the simulated stereoscopic model diagram and the crack sample model diagram, specifically:

If the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold value, detecting the workpiece to be evaluated through an ultrasonic detector, acquiring sound wave characteristic information fed back by the workpiece to be evaluated, and constructing a simulated three-dimensional model diagram of the workpiece to be evaluated based on the sound wave characteristic information fed back by the workpiece to be evaluated;

prefabricating a crack sample model diagram, constructing a database, and importing the crack sample model diagram prefabricated in advance into the database;

extracting features of the simulated stereoscopic model map to obtain a crack model map of cracks in the simulated stereoscopic model map; importing a crack model diagram of cracks in the simulated stereoscopic model diagram into the database, and performing association analysis on the crack model diagram and a crack sample model diagram by a gray association analysis method to obtain association degrees corresponding to the crack model diagrams and the crack sample model diagram;

and removing the cracks with the association degree larger than the preset association degree from the simulated stereoscopic model diagram, and reserving the cracks with the association degree not larger than the preset association degree from the simulated stereoscopic model diagram to obtain a screened stereoscopic model diagram.

4. The on-line evaluation method of the vehicle-mounted radiation protection barrier for physical examination according to claim 1, wherein the crack characteristic information in the screened three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information to obtain a first evaluation result or a second evaluation result, specifically:

acquiring crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

if the first ratio is larger than a preset ratio, obtaining process finished product diagram information of the workpiece to be evaluated based on the process parameter information, and constructing a process finished product model diagram based on the process finished product diagram information;

obtaining design references of the screened stereoscopic model diagram and the process finished product model diagram, constructing a virtual fusion space, importing the screened stereoscopic model diagram and the process finished product model diagram into the virtual fusion space, and enabling the design references of the screened stereoscopic model diagram and the process finished product model diagram to coincide in the virtual fusion space;

reserving the coincident model part of the screened three-dimensional model diagram and the process finished model diagram, and removing the non-coincident model part of the screened three-dimensional model diagram and the process finished model diagram to obtain a fused three-dimensional model diagram;

Acquiring crack characteristic information in the fused three-dimensional model diagram, and acquiring a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; comparing the second ratio with a preset ratio;

if the second ratio is not greater than the preset ratio, generating a first evaluation result, and outputting the first evaluation result; and if the second ratio is larger than the preset ratio, generating a second evaluation result and outputting the second evaluation result.

5. The method for on-line evaluation of an on-board radiation protection barrier for physical examination of claim 4, further comprising the steps of:

if the first ratio is not greater than the preset ratio, a space three-dimensional coordinate system is constructed, a simulated three-dimensional model image is imported into the space three-dimensional coordinate system, and an absolute highest point and an absolute lowest point of each plane in the simulated three-dimensional model image are searched in the space three-dimensional coordinate system;

obtaining a measurement reference of the simulated stereoscopic model diagram, and calculating the distance between the absolute highest point of each plane in the simulated stereoscopic model diagram and the measurement reference to obtain a first distance value; calculating the distance between the absolute lowest point of each plane in the simulated three-dimensional model diagram and the measurement reference to obtain a second distance value;

Calculating the difference value between the first distance value and the second distance value of each plane in the simulated stereoscopic model diagram to obtain a distance difference value, and obtaining the planeness of each plane in the simulated stereoscopic model diagram based on the distance difference value; comparing the planeness of each plane in the simulated stereoscopic model diagram with a preset planeness;

if the flatness is not greater than the preset flatness, generating a second evaluation result, and outputting the second evaluation result; if at least one plane has the flatness larger than the preset flatness, marking the plane corresponding to the flatness larger than the preset flatness as an abnormal plane, and further evaluating the abnormal plane.

6. The on-line evaluation method of an on-vehicle radiation protection barrier for physical examination according to claim 5, wherein the further evaluation of the abnormal plane is specifically:

acquiring flatness corresponding to an abnormal plane, constructing a key search word based on the flatness corresponding to the abnormal plane, and searching a database in a big data network according to the key search word to obtain a historical repair scheme data set;

obtaining a repair success rate corresponding to each history repair scheme in the history repair scheme data set, and removing the history repair scheme with the repair success rate smaller than a preset repair success rate from the history repair scheme data set to obtain a history repair scheme data set after one-time screening;

Obtaining the repair cost corresponding to each history repair scheme in the history repair scheme data set after primary screening, and removing the history repair scheme with the repair cost larger than the preset cost from the history repair scheme data set after primary screening to obtain a history repair scheme data set after secondary screening;

and acquiring the repair success rate corresponding to the residual historical repair scheme in the history repair scheme data set after the secondary screening, constructing a ranking table, importing the repair success rate corresponding to the residual historical repair scheme into the ranking table for size ranking, extracting the history repair scheme corresponding to the highest repair success rate from the residual history repair scheme, generating a third evaluation result based on the history repair scheme corresponding to the highest repair success rate, and outputting the third evaluation result.

7. The on-line evaluation system of the vehicle-mounted radiation protection barrier for the physical examination is characterized by comprising a storage and a processor, wherein the storage stores a vehicle-mounted radiation protection barrier on-line evaluation method program, and when the vehicle-mounted radiation protection barrier on-line evaluation method program is executed by the processor, the following steps are realized:

Acquiring process parameter information of a workpiece to be evaluated, and acquiring specification parameters of the workpiece to be evaluated based on the process parameter information; determining a preset radiation attenuation rate threshold of the workpiece to be evaluated based on the specification parameters, acquiring an actual radiation attenuation rate value of the workpiece to be evaluated, and generating a first evaluation result if the actual radiation attenuation rate value is larger than the preset radiation attenuation rate threshold;

if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, constructing a simulated stereoscopic model diagram of the workpiece to be evaluated, prefabricating a crack sample model diagram, and obtaining a screened stereoscopic model diagram based on the simulated stereoscopic model diagram and the crack sample model diagram;

and acquiring crack characteristic information in the screened three-dimensional model diagram, and evaluating the workpiece to be evaluated based on the crack characteristic information to obtain a first evaluation result or a second evaluation result.

8. The on-line evaluation system of an on-vehicle radiation protection barrier for physical examination according to claim 7, wherein the method is characterized in that a preset radiation attenuation rate threshold of a workpiece to be evaluated is determined based on the specification parameters, an actual radiation attenuation rate value of the workpiece to be evaluated is obtained, and if the actual radiation attenuation rate value is greater than the preset radiation attenuation rate threshold, a first evaluation result is generated, specifically:

Prefabricating a specimen workpiece, acquiring a standard radiation attenuation rate of the specimen workpiece through an X-ray machine, constructing a knowledge graph, and introducing the standard radiation attenuation rate of the specimen workpiece into the knowledge graph;

acquiring specification parameters of a workpiece to be evaluated, and importing the specification parameters of the workpiece to be evaluated into the knowledge graph so as to compare the specification parameters of the workpiece to be evaluated with the specification parameters of all sample workpieces in the knowledge graph to obtain a plurality of similarities;

constructing a sorting table, importing the multiple similarities into the sorting table to sort the sizes of the multiple similarities to obtain the maximum similarity, obtaining the standard radiation attenuation rate of the sample workpiece corresponding to the maximum similarity, and marking the standard radiation attenuation rate of the sample workpiece corresponding to the maximum similarity as a preset radiation attenuation rate threshold of the workpiece to be evaluated;

detecting a workpiece to be evaluated through an X-ray machine to obtain an actual radiation attenuation value of the workpiece to be evaluated; and if the actual radiation attenuation rate value is larger than the preset radiation attenuation rate threshold, generating a first evaluation result and outputting the first evaluation result.

9. The on-line evaluation system of an on-vehicle radiation protection barrier for physical examination according to claim 7, wherein the crack characteristic information in the screened three-dimensional model diagram is obtained, and the workpiece to be evaluated is evaluated based on the crack characteristic information to obtain a first evaluation result or a second evaluation result, which specifically are:

Acquiring crack characteristic information in the screened three-dimensional model diagram, and obtaining a first ratio of cracks in the screened three-dimensional model diagram based on the crack characteristic information; comparing the first ratio with a preset ratio;

if the first ratio is larger than a preset ratio, obtaining process finished product diagram information of the workpiece to be evaluated based on the process parameter information, and constructing a process finished product model diagram based on the process finished product diagram information;

obtaining design references of the screened stereoscopic model diagram and the process finished product model diagram, constructing a virtual fusion space, importing the screened stereoscopic model diagram and the process finished product model diagram into the virtual fusion space, and enabling the design references of the screened stereoscopic model diagram and the process finished product model diagram to coincide in the virtual fusion space;

reserving the coincident model part of the screened three-dimensional model diagram and the process finished model diagram, and removing the non-coincident model part of the screened three-dimensional model diagram and the process finished model diagram to obtain a fused three-dimensional model diagram;

acquiring crack characteristic information in the fused three-dimensional model diagram, and acquiring a second ratio of cracks in the fused three-dimensional model diagram based on the crack characteristic information in the fused three-dimensional model diagram; comparing the second ratio with a preset ratio;

If the second ratio is not greater than the preset ratio, generating a first evaluation result, and outputting the first evaluation result; and if the second ratio is larger than the preset ratio, generating a second evaluation result and outputting the second evaluation result.

10. The on-line evaluation system for a physical examination vehicle radiation protection barrier of claim 9, further comprising the steps of:

if the first ratio is not greater than the preset ratio, a space three-dimensional coordinate system is constructed, a simulated three-dimensional model image is imported into the space three-dimensional coordinate system, and an absolute highest point and an absolute lowest point of each plane in the simulated three-dimensional model image are searched in the space three-dimensional coordinate system;

obtaining a measurement reference of the simulated stereoscopic model diagram, and calculating the distance between the absolute highest point of each plane in the simulated stereoscopic model diagram and the measurement reference to obtain a first distance value; calculating the distance between the absolute lowest point of each plane in the simulated three-dimensional model diagram and the measurement reference to obtain a second distance value;

calculating the difference value between the first distance value and the second distance value of each plane in the simulated stereoscopic model diagram to obtain a distance difference value, and obtaining the planeness of each plane in the simulated stereoscopic model diagram based on the distance difference value; comparing the planeness of each plane in the simulated stereoscopic model diagram with a preset planeness;

If the flatness is not greater than the preset flatness, generating a second evaluation result, and outputting the second evaluation result; if at least one plane has the flatness larger than the preset flatness, marking the plane corresponding to the flatness larger than the preset flatness as an abnormal plane, and further evaluating the abnormal plane.