CN102874576A - Powder material transport monitoring system and method - Google Patents

Abstract

The invention discloses a powder material transportation monitoring system and method. The system includes N laser measuring heads, a serial port server and a monitoring terminal, wherein, the N laser measuring heads are arranged on the shelf above the powder material truck, and N is greater than or equal to A positive integer of 2. The laser measuring head outputs the collected height data of the scattered points on the surface of the powder material pile in the feed truck to the monitoring terminal through the serial server; the monitoring terminal calculates the powder according to the height data of the scattered points and the relevant data preset by the user The volume information and density information of the material pile, and compare the volume information and density information with the volume information and density information of the powder material pile originally stored in the database to obtain the data difference, and judge the powder material according to the data difference Whether the transportation status is normal. The invention has high measurement precision, small size and strong expandability, and can supervise the transportation of powder materials by the transportation party using legal, safe and regular means.

Description

A powder material transportation monitoring system and method

technical field

The invention relates to the field of powder material transportation monitoring, in particular to a powder material transportation monitoring system and method.

Background technique

In order to ensure the safe and orderly operation of the transportation of powder materials (such as coal) and prevent cheating phenomena such as replacement of coal during transportation and substituting inferior ones for good ones, coal transportation monitoring has become an important link in coal transportation. The core of monitoring the coal transportation process is to measure the volume, quality, density and other information of the coal in the coal transportation vehicle, and then judge whether the coal is transported between the departure point and the destination according to the formal standard based on this information. In mines, power plants, ports, stations and other places, the volume and quality of many powder material piles need to be measured accurately and quickly. When the powder material is coal, it is also commonly known as pan coal. There are two traditional coal-coaling methods: 1. Artificial coal-coaling. After the coal pile is shaped into a standard geometry by the bulldozer, the volume of the coal pile is calculated by manual measurement and estimation with a tape measure or a handheld laser rangefinder, and then the mass of the coal pile is calculated based on the known density of the coal. However, this method requires a lot of manpower, has low measurement accuracy, and can only measure the coal in the site, but cannot measure the coal in the coal transport vehicle. Second, laser coal. A semi-automatic measurement system is designed by using 3D photography and laser ranging technology. Although this method can be applied to coal transportation monitoring, the semi-automatic measurement system is bulky and has poor scalability, and most of the instruments that measure the overall length and scattered point density according to the coal pile cannot perform calculation statistics and data analysis. The process is also relatively complicated, requiring a lot of manpower and material resources and comprehensive implementation means to achieve satisfactory results, which cannot meet the needs of coal transportation monitoring.

Contents of the invention

In view of the above technical problems, the object of the present invention is to provide a powder material transportation monitoring system and method, which is not only small in size and easy to use, but also can accurately measure the volume information and density information of the powder material in the powder truck, and Based on this information, it is judged whether the powder material is transported according to the formal standard between the origin and the destination.

For reaching this purpose, the present invention adopts following technical scheme:

A powder material transportation monitoring system, including N laser measuring heads, a serial port server and a monitoring terminal, wherein the N laser measuring heads are arranged on the shelf above the powder material truck, and N is a positive integer greater than or equal to 2;

The laser measuring head is used to collect the height data of scattered points on the surface of the powder material pile in the powder truck, and output it to the serial port server;

The serial port server is used to output the input height data of the scattered points to the monitoring terminal through the network;

The monitoring terminal is used to calculate the volume information and density information of the powder material pile according to the input height data of the scattered points and the relevant data preset by the user, and compare the volume information and density information with those originally stored in the database. Compare the volume information and density information of the powder material pile to obtain the data difference, and judge whether the transportation status of the powder material is normal according to the data difference, wherein the relevant data preset by the user includes the chassis of the powder truck The height data and the mass data of the powder material pile measured by the weighbridge.

In particular, the laser measuring head includes a laser head, an analog-to-digital converter and a processor;

The laser head is used to emit laser light to the powder material pile in the powder material truck, receive the optical signal fed back by the laser light at scattered points on the surface of the powder material pile, and output it to the analog-to-digital converter;

The analog-to-digital converter is used to convert the input optical signal into a digital signal, obtain the height data of scattered points on the surface of the powder material pile, and output it to the processor;

The processor is used to encode the input height data of the scattered points, and output the encoded height data to the serial port server.

In particular, the monitoring terminal is specifically used for

Fit the three-dimensional surface according to the input height data of the scattered points and the relevant data preset by the user, calculate the volume information and density information of the powder material pile, and combine the volume information and density information with the original stored powder in the database Compare the volume information and density information of the solid material pile to obtain the data difference, and judge whether the transportation status of the powder material is normal according to the data difference.

In particular, the monitoring terminal is also used for

When it is judged that the transportation status of the powder material is abnormal, record the relevant responsibility information, and notify the relevant responsible person to detect the density information of the powder material pile in the powder truck again, wherein the relevant responsibility information includes the number of the powder truck , the owner of the powder truck and the time when the abnormal transportation condition was discovered.

In particular, the monitoring terminal is further used for

When it is judged that the transportation status of the powder material is abnormal, the volume information and density information of the powder material pile stored in the database are output to the user terminal.

The invention also discloses a powder material transportation monitoring method, which includes the following steps:

A. N laser measuring heads collect the height data of scattered points on the surface of the powder material pile in the powder truck, wherein, N laser measuring heads are set on the shelf above the powder truck, and N is a positive integer greater than or equal to 2;

B, the serial port server outputs the height data of the scattered points to the monitoring terminal through the network;

C. The monitoring terminal calculates the volume information and density information of the powder material pile according to the input height data of the scattered points and the relevant data preset by the user, and compares the volume information and density information with the powder originally stored in the database Comparing the volume information and density information of the material pile to obtain the data difference, and judging whether the transportation status of the powder material is normal according to the data difference; wherein, the relevant data preset by the user includes the chassis height data of the powder truck and The quality data of the powder material pile measured by the weighbridge.

In particular, the step A specifically includes:

A1. The laser head emits laser light to the powder material pile in the powder material truck, and receives the optical signal fed back by the laser at scattered points on the surface of the powder material pile;

A2. The analog-to-digital converter converts the optical signal into a digital signal to obtain height data of scattered points on the surface of the powder material pile;

A3. The processor encodes the height data of the scattered points.

In particular, in the step C, the volume information and density information of the powder material pile are calculated according to the input height data of the scattered points and related data preset by the user, specifically including:

Fit the three-dimensional surface according to the input height data of the scattered points and the relevant data preset by the user, and calculate the volume information and density information of the powder material pile.

In particular, the step C also includes:

When it is judged that the transportation status of the powder material is abnormal, record the relevant responsibility information, and notify the relevant responsible person to detect the density information of the powder material pile in the powder truck again, wherein the relevant responsibility information includes the number of the powder truck , the owner of the powder truck and the time when the abnormal transportation condition was discovered.

Particularly, described step C further comprises:

When it is judged that the transportation status of the powder material is abnormal, the monitoring terminal outputs the volume information and density information of the powder material pile stored in the database to the user terminal.

The present invention scans the powder material pile in the powder material truck through a plurality of laser measuring heads at the starting point and destination of powder material transportation, and obtains the height data of scattered points on the surface of the powder material pile, and the monitoring terminal according to the scattered The point height data is used to fit the three-dimensional surface, so as to calculate the volume information and density information of the powder material pile, and finally judge whether the process of powder material transportation is normal. The invention not only allows the user to obtain accurate and real on-site data at the first time, but also provides auxiliary decision-making of important data for the user to perform standard data comparison and analysis, and saves a lot of money and manpower for the user to supervise the powder material transportation process Material resources can greatly improve the work inspection efficiency of the user side, and supervise the transportation side to use legal, safe and formal means to transport powder materials.

Description of drawings

Fig. 1 is a block diagram of a powder material transportation monitoring system provided by an embodiment of the present invention;

Fig. 2 is a flowchart of a powder material transportation monitoring method provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 1 , which is a block diagram of a powder material transportation monitoring system provided by an embodiment of the present invention. Taking the powder material as coal as an example, the coal transportation monitoring system in this embodiment includes twelve laser measuring heads 101 , a serial port server 102 and a monitoring terminal 103 . The laser measuring head 101 includes a laser head 1011 , an analog-to-digital converter 1012 and a processor 1013 . Among them, the number of laser measuring heads can be adjusted according to the width of the coal transport vehicle and the measurement accuracy of the user, and is not fixed at twelve.

The laser measuring head 101 is used to collect height data of scattered points on the coal pile surface in the coal transport vehicle, and output the data to the serial port server 102 .

The number of laser measuring heads 101 can be flexibly adjusted according to different measurement environments and measurement accuracy. Twelve laser measuring heads 101 are arranged side by side on the shelf above the coal transport vehicle, and the laser head 1011 in the laser measuring head 101 is vertically installed on the shelf to ensure that the emitted laser beam is perpendicular to the horizontal plane; When passing below, the laser head 1011 starts to work. It should be noted that the height data of the scattered points refers to the height from the point irradiated by the laser head 1011 on the surface of the coal pile to the laser head 1011 .

The laser head 1011 is used to emit laser light to the coal pile in the coal transport vehicle, receive the optical signal fed back by the laser at scattered points on the surface of the coal pile, and output it to the analog-to-digital converter 1012 .

When the coal transport vehicle to be detected enters the working area of the coal transport monitoring system, twelve laser heads 1011 scan the coal pile from top to bottom at the same time, and send the optical signal fed back by the laser at scattered points on the surface of the coal pile to the analog-to-digital converter 1012 for processing. When the tail of the coal transport vehicle passes the laser head 1011, the scanning ends.

The analog-to-digital converter 1012 is used to convert the input optical signal into a digital signal, obtain the height data of scattered points on the surface of the coal pile, and output it to the processor 1013 .

The analog-to-digital converter 1012 converts the optical signals input by the twelve laser heads 1011 into digital signals to obtain height data of scattered points on the coal pile surface.

The processor 1013 is configured to encode the input height data of the scattered points, and output the encoded height data to the serial port server 102 .

After receiving the input digital signal from the analog-to-digital converter 1012 , the processor 1013 performs binary encoding on the digital signal, and converts the digital signal into a data form that can be processed by the monitoring terminal 103 . In addition, a flash memory (Flash) is also provided in the processor 1013 for storing configuration parameter information of the laser head 1011 , and the processor 1013 can call the parameter information to configure the laser head 1011 . The configuration parameter information of the laser head 1011 includes sampling period and data return time. The sampling period refers to the time frequency at which the laser head 1011 collects data. For example, when the coal transport vehicle passes the weighbridge for ten seconds, the laser head 1011 samples once every second, and the sampling period is one second. The data return time refers to the time and frequency at which the laser head 1011 sends the processed data to the monitoring terminal 103. The shorter the data return time, the smaller the granularity of the collected irregular scattered points, and the more precise the data value returned by the laser. , but because the processing capability of the processor 1013 itself is limited, the data transmission error rate is also higher. The preset relevant data includes the width data of the coal transport vehicle input by the user, the chassis height data of the coal pile and the quality data of the coal pile measured by the weighbridge.

The serial port server 102 is used to output the input height data of the scattered points to the monitoring terminal 103 through the network.

After the processor 1013 encodes the height data of the scattered points, the encoded height data cannot be communicated with the monitoring terminal 103 through the RS-485 interface. The serial server 102 can convert the RS-485 interface into a TCP/IP network interface. After the processor 1013 inputs the encoded height data into the serial server 102 through the RS-485 interface, the serial server 102 transparently transmits the encoded height data to the monitoring terminal 103 through the network through the TCP/IP network interface. Wherein, the RS-485 is a serial data interface standard formulated and published by the Electronics Industries Association (EIA). The TCP/IP is a network communication protocol, which is composed of the Internet Protocol (IP) at the network layer and the Transmission Control Protocol (TCP) at the transport layer.

The monitoring terminal 103 is used to calculate the volume information and density information of the coal pile according to the input height data of the scattered points and the relevant data preset by the user, and compare the volume information and density information with the original stored data in the database. The volume information of the coal pile is compared with the density information to obtain the data difference, and judge whether the transportation status of the coal is normal according to the data difference. The relevant data preset by the user includes the chassis height data of the coal transport vehicle, the The width data of the car and the mass data of the coal pile measured by the weighbridge.

After the serial port server 102 inputs the encoded height data into the monitoring terminal 103, the monitoring terminal 103 will first use the triangulation three-dimensional reconstruction algorithm to fit the three-dimensional curved surface to obtain the three-dimensional curved surface graphics of the coal pile, and then combine the width of the coal transport vehicle The data and the chassis height data of the coal pile are subjected to a triple integral operation to obtain the volume information of the coal pile. Since the quality information of the coal pile has been measured on the weighbridge, the monitoring terminal 103 can directly calculate the density information of the coal pile according to the quality information and the calculated volume information.

When monitoring the coal transportation process, at least the coal pile volume information and density information of the coal transportation vehicle at the departure place and the destination must be obtained. In this embodiment, the coal transportation monitoring system only monitors the coal transportation vehicle at the departure place. The volume information and density information of the coal pile at the two locations of the destination and the destination are measured.

The coal transportation monitoring system stores the volume information and density information of the coal pile measured at the departure place in the database of the monitoring terminal 103, when the coal transportation monitoring system measures the volume information and density information of the coal pile at the destination Finally, the monitoring terminal 103 will calculate the data difference between the volume information and density information of the coal pile of the coal transport vehicle at the destination and the volume information and density information of the coal pile of the coal transport vehicle at the departure place stored in the database, and according to The data difference judges whether the transportation status of coal is normal. The size of the data difference can be flexibly set according to user needs.

When the monitoring terminal 103 judges that the transportation status of the coal is abnormal, it will record relevant responsibility information, and notify the relevant responsible person to detect the density information of the coal pile in the coal transportation vehicle again. Wherein, the relevant responsibility information includes the serial number of the coal transport vehicle, the owner of the coal transport vehicle, and the time when the coal transport condition is found to be abnormal. At the same time, when the transportation status of coal is abnormal, the monitoring terminal 103 will also send the volume information and density information of the coal piles in the database to the user terminal 104. When the user also needs the serial number of the coal transport vehicle, the coal When transporting vehicle owner and other information, the monitoring terminal 103 can send these information together with the volume information and density information to the user terminal 104 .

As shown in FIG. 2 , FIG. 2 is a flowchart of a powder material transportation monitoring method provided by an embodiment of the present invention. Taking the powder material as coal as an example, the coal transportation monitoring method in this embodiment includes the following steps:

Step S201, the laser head emits laser light to the coal pile in the coal transport vehicle, and receives the optical signal fed back by the laser at scattered points on the surface of the coal pile.

In this embodiment, twelve laser heads are installed side by side on the shelf above the coal transport vehicle to ensure that the emitted laser beams are perpendicular to the horizontal plane. When the coal transport vehicle to be detected enters the working area of the coal transport monitoring system, the twelve laser heads simultaneously irradiate and scan the coal pile from top to bottom, and send the optical signals fed back by the laser at scattered points on the surface of the coal pile to the ADC processing. When the rear of the coal transport vehicle passes the laser head, the scanning ends.

Step S202, the analog-to-digital converter converts the input optical signal into a digital signal, and obtains height data of scattered points on the surface of the coal pile. It should be noted that the height data of the scattered points refers to the height from the point irradiated by the laser head on the surface of the coal pile to the laser head.

The analog-to-digital converter converts the optical signals input by the twelve laser heads into digital signals to obtain height data of scattered points on the surface of the coal pile.

Step S203, the processor encodes the input height data of the scattered points, and outputs the encoded height data to the serial port server.

After the processor receives the input digital signal from the analog-to-digital converter, it will perform binary coding on the digital signal and convert it into a data form that can be processed by the monitoring terminal. In addition, the processor is also provided with a flash memory for storing configuration parameter information of the laser head, and the processor can call the parameter information to configure the laser head. The configuration parameter information of the laser head includes sampling period and data return time.

Step S204, the serial port server is used to output the input height data of the scattered points to the monitoring terminal through the network.

The serial port server converts the RS-485 interface into a TCP/IP network interface. After the processor inputs the encoded height data into the serial server through the RS-485 interface, the serial server transparently transmits the encoded height data to the monitoring terminal through the network through the TCP/IP network interface.

Step S205, the monitoring terminal calculates the volume information and density information of the coal pile according to the input height data of the scattered points and the relevant data preset by the user, and compares the volume information and density information with the coal pile originally stored in the database Compare the volume information and density information of the data to obtain the data difference, and judge whether the coal transportation status is normal according to the data difference, wherein, the relevant data preset by the user includes the chassis height data of the coal transport vehicle, the The width data and the mass data of the coal pile measured by the weighbridge.

After the serial port server inputs the encoded height data into the monitoring terminal, the monitoring terminal will first use the triangulation 3D reconstruction algorithm to fit the 3D surface to obtain the 3D surface graphics of the coal pile, and then combine the width data of the coal transport vehicle with the coal The data of the height of the chassis of the coal pile is triple-integrated to obtain the volume information of the coal pile. Since the quality information of the coal pile has been measured on the weighbridge, the monitoring terminal can directly calculate the density information of the coal pile according to the quality information and the calculated volume information.

In this embodiment, the coal transport monitoring system only measures the coal pile volume information and density information of the coal transport vehicle at the departure point and the destination point. The coal transportation monitoring system stores the volume information and density information of the coal pile measured at the departure point in the database of the monitoring terminal. , the monitoring terminal will calculate the data difference between the volume information and density information of the coal pile of the coal transport vehicle at the destination and the volume information and density information of the coal pile of the coal transport vehicle at the departure point stored in the database, and based on the data The difference judges whether the transportation status of coal is normal. Wherein, the size of the data difference can be flexibly set according to user needs.

When the monitoring terminal judges that the transportation status of coal is abnormal, it will record the relevant responsibility information and notify the relevant responsible person to detect the density information of the coal pile in the coal transportation vehicle again. Wherein, the relevant responsibility information includes the serial number of the coal transport vehicle, the owner of the coal transport vehicle, and the time when the coal transport condition is found to be abnormal. At the same time, when the transportation status of coal is abnormal, the monitoring terminal will also send the volume information and density information of coal piles in the database at the departure point and destination to the user terminal. When the vehicle owner waits for information, the monitoring terminal can send these information together with the volume information and density information to the user terminal.

The technical scheme of the present invention uses the height data of scattered points on the coal pile surface to fit the three-dimensional curved surface, and can calculate high-accuracy volume information, and the user can expand the function of the laser measuring head through relevant configurations according to actual needs. The invention is small in size and easy to operate. It not only allows users to obtain accurate and real on-site data at the first time, but also provides auxiliary decision-making of important data for users to perform standard data comparison and analysis, and saves time for users to supervise the coal transportation process. A large amount of capital, manpower and material resources can greatly improve the work inspection efficiency of the user side, and supervise the transportation side to use legal, safe and regular means to carry out coal transportation operations.

The above are only the preferred embodiments of the present invention and the technical principles used. Any changes or substitutions that can be easily imagined by those skilled in the art within the technical scope disclosed in the present invention shall be covered by the protection scope of the present invention. Inside.

Claims (10)

1. a powder material transport monitor system is characterized in that, comprises N laser measuring head, serial server and monitor terminal, and wherein, N laser measuring head is arranged on the shelf of powder car top, and N is the positive integer more than or equal to 2:

Described laser measuring head is used for gathering powder car powder material and piles the altitude information of surperficial scattered points, and exports to serial server;

Described serial server is exported to monitor terminal for the altitude information of the described scattered points that will input by network;

Described monitor terminal is used for according to the altitude information of the described scattered points of input and the related data of user preset, calculate volume information and the density information of powder material heap, and volume information and density information that the powder material of original storage in this volume information and density information and the data bank is piled compare, obtain data difference, whether the Ferry Status of judging powder material according to this data difference is normal, wherein, the related data of described user preset comprises the qualitative data of the chassis height data of powder car and the powder material heap that weighbridge is measured.

2. powder material transport monitor system according to claim 1 is characterized in that, described laser measuring head comprises laser head, A and D converter and treater;

Described laser head is used for the powder material heap Emission Lasers to the powder car, receives this laser and piles the optical signal of surperficial scattered points feedback at powder material, and export to A and D converter;

The described optical signal that described A and D converter is used for inputting is converted to digital signal, obtains powder material and piles the altitude information of surperficial scattered points, and export to treater;

Described treater is used for the altitude information of the described scattered points of input is encoded, and the altitude information after will encoding is exported to serial server.

3. powder material transport monitor system according to claim 2 is characterized in that, described monitor terminal specifically is used for

According to the altitude information of the described scattered points of inputting and the related data match three-dimension curved surface of user preset, calculate volume information and the density information of powder material heap, and volume information and density information that the powder material of original storage in this volume information and density information and its data bank is piled compare, obtain data difference, judge according to this data difference whether the Ferry Status of powder material is normal.

4. powder material transport monitor system according to claim 3 is characterized in that, described monitor terminal also is used for

When judging the Ferry Status mal of powder material, record related responsibility information, and notify the responsible person concerned again to detect the density information of powder material heap in the powder car, wherein, described related responsibility information comprises numbering, the powder car car owner of powder car and finds abnormal time of Ferry Status.

5. powder material transport monitor system according to claim 4 is characterized in that, described monitor terminal is further used for

When judging the Ferry Status mal of powder material, volume information and density information that the powder material of storing in the data bank is piled are exported to user terminal.

6. a powder material transport monitoring method is characterized in that, comprises the steps:

A, N laser measuring head gathers the altitude information that powder material in the powder car is piled surperficial scattered points, and wherein, N laser measuring head is arranged on the shelf above the powder car, and N is the positive integer more than or equal to 2;

B, serial server are exported to monitor terminal with the altitude information of described scattered points by network;

C, monitor terminal go out volume information and the density information of powder bank according to the correlation data calculation of the altitude information of the described scattered points of input and user preset, and volume information and density information that the powder material of original storage in this volume information and density information and the data bank is piled compare, obtain data difference, judge according to this data difference whether the Ferry Status of powder material is normal; Wherein, the related data of described user preset comprises the qualitative data of the chassis height data of powder car and the powder material heap that weighbridge is measured.

7. powder material transport monitoring method according to claim 6 is characterized in that described steps A specifically comprises:

A1, laser head are piled Emission Lasers to the powder material in the powder car, and receive this laser is piled surperficial scattered points feedback at powder material optical signal;

A2, A and D converter are converted to digital signal with described optical signal, obtain the altitude information that powder material is piled surperficial scattered points;

A3, treater are encoded to the altitude information of described scattered points.

8. powder material transport monitoring method according to claim 7, it is characterized in that, among the described step C, go out volume information and the density information of powder bank according to the correlation data calculation of the altitude information of described scattered points of input and user preset, specifically comprise:

According to the altitude information of the described scattered points of inputting and the related data match three-dimension curved surface of user preset, calculate volume information and the density information of powder material heap.

9. powder material transport monitoring method according to claim 8 is characterized in that described step C also comprises:

When judging the Ferry Status mal of powder material, record related responsibility information, and notify the responsible person concerned again to detect the density information of powder material heap in the powder car, wherein, described related responsibility information comprises numbering, the powder car car owner of powder car and finds abnormal time of Ferry Status.

10. powder material transport monitoring method according to claim 9 is characterized in that described step C further comprises:

When judging the Ferry Status mal of powder material, volume information and density information that monitor terminal is piled the powder material of storing in the data bank are exported to user terminal.

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