CN116862360B - A visual data management system and method based on GIS map - Google Patents

A visual data management system and method based on GIS map Download PDF

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CN116862360B
CN116862360B CN202310792409.0A CN202310792409A CN116862360B CN 116862360 B CN116862360 B CN 116862360B CN 202310792409 A CN202310792409 A CN 202310792409A CN 116862360 B CN116862360 B CN 116862360B
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CN116862360A (en
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李强
陈臻
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Shanghai Langhui Huike Technology Co ltd
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Abstract

本发明公开了一种基于GIS地图的可视化数据管理系统及方法，属于运输安全技术领域。该系统包括数据采集模块、数据处理模块、预警判断模块和可视化模块；所述数据采集模块用于采集运输网络中的GIS信息、货物信息、路况信息和历史信息；所述数据处理模块用于根据运输货物的易碎等级选择振动程度区间，从而规划合适的运输路线并标注运输路线上的颠簸位置；所述预警判断单元用于实时分析运输车辆的行驶信息，在即将抵达颠簸位置时计算运输车辆的下调速度，当运输车辆的下调速度大于零或者振动程度过大时进行预警操作；所述可视化模块通过车载可视化设备实时显示运输车辆的运行状况，以及当接收到预警信息时进行展示提醒。

The present invention discloses a visual data management system and method based on GIS map, belonging to the field of transportation safety technology. The system includes a data acquisition module, a data processing module, an early warning judgment module and a visualization module; the data acquisition module is used to collect GIS information, cargo information, road condition information and historical information in the transportation network; the data processing module is used to select the vibration degree interval according to the fragility level of the transported cargo, so as to plan a suitable transportation route and mark the bumpy position on the transportation route; the early warning judgment unit is used to analyze the driving information of the transport vehicle in real time, calculate the lowering speed of the transport vehicle when it is about to arrive at the bumpy position, and perform an early warning operation when the lowering speed of the transport vehicle is greater than zero or the vibration degree is too large; the visualization module displays the operation status of the transport vehicle in real time through the on-board visualization device, and displays and reminds when the early warning information is received.

Description

Visual data management system and method based on GIS map
Technical Field
The invention relates to the technical field of transportation safety, in particular to a visual data management system and method based on a GIS map.
Background
In modern logistics transport, the fragility of the goods has been an important issue. Many commercial products, especially fragile goods such as glass products, ceramic products, electronic devices, etc., are susceptible to breakage during transportation due to their special properties, such as jolt, vibration, impact, etc. This not only results in loss of goods, but may also affect the normal operation of the supply chain, increasing the transportation costs of the enterprise and the complaint rate of the customer. Therefore, the damage problem of fragile goods in logistics transportation is studied, and the method has important significance for optimizing logistics transportation flow and improving goods transportation quality.
At present, the problem of fragility in cargo transportation is mainly solved by route planning and vehicle speed control. Route planning means that in the course of transporting goods, selecting an appropriate transport route can reduce jolts and vibrations of the goods in the course of transporting the goods, thereby reducing the risk of damage to the goods. However, the conventional route planning method often adopts automatic navigation or a driver avoids an uneven road section by means of memory, the fragile grade of the goods is not considered in route planning, different routes cannot be arranged for the goods with different grades, and the bumpy risk is reduced. The vehicle speed control means that the damage risk of cargoes is reduced by controlling the speed of the vehicle during the cargo transportation process. However, the conventional speed control method mainly controls the speed of the vehicle to reduce the bumping degree according to the road speed limit sign or by the feeling of the driver, and cannot perform more accurate speed control according to the fragile grade of the goods and the flatness of the road, so as to reduce the bumping degree. Therefore, developing a technique capable of arranging a transportation route according to the fragile grade of the goods and detecting and reminding deceleration in real time during transportation is important for improving the safety and reliability of the goods transportation.
Disclosure of Invention
The invention aims to provide a visual data management system and method based on a GIS map, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a visual data management system based on a GIS map comprises a data acquisition module, a data processing module, an early warning judging module and a visual module.
The data acquisition module is used for acquiring GIS information, cargo information, road condition information and history information in the transportation network; the data processing module is used for selecting a vibration degree interval according to the fragile grade of the transported goods, so as to plan a transportation route and mark the jolt position on the transportation route; the early warning judging unit is used for calculating the down-regulating speed of the transport vehicle, and carrying out early warning operation when the down-regulating speed of the transport vehicle is greater than zero or the vibration degree is greater than or equal to the minimum value of the vibration degree interval; the visualization module is used for displaying the running condition of the transport vehicle in real time and displaying and reminding when the early warning information is received.
The data acquisition module comprises a GIS information acquisition unit, a cargo information acquisition unit, a road condition information acquisition unit and a history information acquisition unit.
The GIS information acquisition unit is used for acquiring the position information, the moving direction and the moving speed of the transport vehicle in real time; the goods information acquisition unit is used for acquiring the fragile grade of the currently transported goods; the road condition information acquisition unit acquires the vibration degree of the current transport vehicle in real time through an acceleration sensor arranged on the transport vehicle; the history information acquisition unit is used for acquiring position information in a history record and the moving speed and the vibration degree of the transport vehicle at the position.
The history record refers to running records of all transport vehicles on the transport network in the past period, each transport vehicle corresponds to one or more running records, and each running record comprises a plurality of pieces of position information and the moving speed and the vibration degree of the transport vehicle at each position; position information, moving speed and vibration degree are acquired through a GIS and an acceleration sensor, and are uploaded to a system after being correlated.
The data processing module comprises a transportation route planning unit and a jolt situation prediction unit.
The transport route planning unit is used for planning a transport route of the transport vehicle. Firstly, obtaining the fragile grade of the current transported goods, and matching the corresponding vibration degree interval in the system; secondly, correlating the position information on the GIS map with the position information in the history record, respectively averaging the vibration degrees of different times at the same position in the history record, and finding out the position information corresponding to the section maximum value of the vibration degree with the average vibration degree larger than the vibration degree as the average vibration degree of the position, and deleting the road sections corresponding to the position information in the GIS map; and finally, inputting a starting point and a destination point on the GIS map to plan a shortest path for the transport vehicle as a transport route.
The jolt situation prediction unit is used for marking jolt positions in the transportation route. And marking the position corresponding to the minimum value of the vibration degree interval with the average vibration degree larger than or equal to the average vibration degree in the GIS map as a bump position.
Different fragile grades of goods have different requirements on the jolting degree of the transport vehicle, and the matched vibration degree intervals are also different. A higher level of frangibility indicates that the transported goods are more likely to break during transportation, and a higher frangibility level should also select a smaller intermediate value between the vibration levels.
The early warning judging module comprises an overspeed early warning unit and a jolt early warning unit.
The overspeed early warning unit is used for early warning the overspeed condition of the transport vehicle. When the transportation route comprises jolting positions, substituting the minimum value of the vibration degree interval into a formula, respectively calculating the highest passing speed of each jolting position, subtracting the highest passing speed from the moving speed of the current transportation vehicle to obtain lower speed, and carrying out early warning operation when the lower speed is greater than zero.
The bumping early warning unit is used for carrying out early warning on bumping conditions of the transport vehicle. And judging whether the current vibration degree of the transport vehicle is larger than or equal to the minimum value of the vibration degree interval in real time, and if so, carrying out early warning operation.
The visual module displays the GIS map and the transportation route, jolt position, position information, moving direction, moving speed, vibration degree and goods fragile grade information marked on the map through the vehicle-mounted visual equipment, and when the system performs early warning operation, a display screen display and loudspeaker sounding mode is adopted to inform a driver.
A visual data management method based on a GIS map comprises the following steps:
s1, selecting a vibration degree interval according to the fragile grade of transported goods;
S2, selecting a transportation route for the transportation vehicle through a vibration degree interval, and marking a jolt position;
S3, collecting running information of the transport vehicle in real time, and calculating the down-regulating speed of the transport vehicle according to the situation of the jolt position;
s4, early warning operation is carried out when the lower speed of the transport vehicle is greater than zero or the vibration degree is increased;
S5, displaying running conditions and early warning information of the transport vehicle on the vehicle-mounted visual equipment.
In S1, the friability rating includes light friability, medium friability, and heavy friability; different fragile grades correspond to different vibration degree intervals, and the corresponding vibration degree intervals are selected according to the fragile grades of the transported goods.
The vibration degree refers to the degree of jolt of the transport vehicle during running, and the higher the vibration degree is, the greater the jolt degree is. Different vibration level intervals are matched due to different requirements of different fragile grades of cargoes on the bumping degree of the transport vehicle. The friability grades are light friability, medium friability and heavy friability from low to high respectively, and the corresponding intermediate values of the vibration degree intervals are respectively from big to small, namely the intermediate values of the vibration degree intervals corresponding to the light friability goods are larger than the intermediate values of the vibration degree intervals corresponding to the heavy friability goods.
The vibration degree interval is a closed interval, one of the two end points is the minimum vibration degree, and the other end point is the maximum vibration degree. When the vehicle vibration level is less than the minimum vibration level, the damage risk of the goods is extremely small. When the vehicle vibration degree is greater than the maximum vibration degree, the damage risk of the goods is extremely high. When the vehicle vibration degree is in the vibration degree interval, the damage risk of the cargo is in a controllable range, and the damage risk can be reduced by reducing the speed of the transportation vehicle.
In S2, the steps of selecting the transportation route and marking the jolt position are as follows:
s201, acquiring running records of all transport vehicles on a transport network in the past time, wherein each transport vehicle comprises X running records, and each running record comprises different position information of the transport vehicle, and the moving speed and the vibration degree of the transport vehicle at the position.
S202, disassembling road information on a GIS map into Y road sections, and ensuring that a starting point and an ending point of each road section are connected by only one route; and associating the position information in all the transport vehicle running records with road sections with the same position on the GIS map, wherein each road section is associated with Z pieces of position information, and each piece of position information is associated with only one road section.
S203, respectively obtaining different vibration degrees at the same position in the running record, obtaining an average value, taking the average value as the average vibration degree of the position, obtaining the maximum value of the vibration degree interval corresponding to the transported goods as the maximum vibration degree, marking the position corresponding to the average vibration degree larger than the maximum vibration degree as an unselected state, and deleting the road section corresponding to the position marked as the unselected state in the GIS map.
S204, inputting a starting point and a destination point on the GIS map, and planning a shortest path for the transport vehicle by using the rest road sections to serve as a transport route.
S205, acquiring a minimum value of a vibration degree interval corresponding to the transported goods as a minimum vibration degree, and marking a position corresponding to the average vibration degree larger than or equal to the minimum vibration degree in the GIS map as a jolt position.
Logistics efficiency and transportation safety are mutually exclusive two factors in the whole transportation process, namely, the logistics efficiency is sacrificed to improve transportation safety or the transportation safety is sacrificed to improve logistics efficiency. According to the invention, the high-risk road sections are eliminated and then the transportation route is planned, so that the maximization of logistics efficiency is realized as much as possible on the premise of ensuring the transportation safety of goods, and the transportation risk is controlled within a certain range.
In S3, the travel information includes position information, a moving direction, a moving speed, and a vibration degree. The position information, the moving direction and the moving speed are collected in real time through a GIS, and the vibration degree is collected in real time through an acceleration sensor arranged on the transport vehicle; when the bump position is contained in the transportation route, calculating the down-regulating speed of the transportation vehicle in advance, wherein the down-regulating speed comprises the following steps:
S301, acquiring all jolt position information in a transportation route, respectively searching the movement speed and the vibration degree of the transportation vehicle corresponding to the position information in a driving record, respectively carrying out data fitting on the movement speed and the vibration degree of the transportation vehicle at each jolt position to obtain a relation formula of the movement speed and the vibration degree, wherein each jolt position corresponds to one relation formula, and the formula is as follows:
Where OP is the vibration degree of the transport vehicle, p is the friction coefficient between the transport vehicle and the ground, RD is the road surface flatness, V is the moving speed of the transport vehicle, M is the mass of the transport vehicle, and s is the mass influence coefficient of the transport vehicle.
The road surface flatness reflects the roughness of the road surface, with higher values indicating that the road surface is more bumpy and lower values indicating that the road surface is smoother.
S302, taking the minimum vibration degree as the vibration degree of the transport vehicle, substituting the vibration degree into a corresponding relation formula of each bump position, and calculating to obtain the moving speed of the transport vehicle as the highest passing speed of the corresponding bump position, wherein the highest passing speed of each bump position is different.
When the moving speed of the transport vehicle at the bump position is smaller than the corresponding highest passing speed, the vibration degree of the transport vehicle is smaller than the minimum vibration degree, and the vehicle runs stably.
S303, acquiring the position information, the moving direction and the moving speed of the transport vehicle in real time in the running process of the transport vehicle, judging whether the distance between the current position and the next bump position is equal to an early warning distance in real time, wherein the early warning distance dynamically changes along with the current moving speed of the transport vehicle, and the calculation formula is as follows:
Where V 0 is the current travel speed of the transport vehicle, V 1 is the highest traffic speed corresponding to the next jounce position, a is the acceleration, and t 1 is the time required for the transport vehicle to decelerate to the highest traffic speed corresponding to the jounce position.
Wherein wd is the pre-warning distance, and t 0 is the reserved reaction time. When the distance between the current position of the transport vehicle and the next bump position is equal to the early warning distance, subtracting the highest passing speed corresponding to the next bump position from the current moving speed of the transport vehicle to obtain the lower speed of the transport vehicle.
Since the damage of goods is difficult to completely avoid due to a plurality of factors in the transportation process, the main purpose of the invention is to reduce the risk of damage of goods caused by severe jolting caused by uneven road or overhigh speed as much as possible.
In S4, the early warning operation is classified into overspeed early warning and jolt early warning. And the overspeed early warning is to perform early warning operation when the lower speed of the transport vehicle is greater than zero, write the lower speed into early warning information and send the early warning information to the vehicle-mounted visual equipment. The bump early warning is to perform early warning operation when the vibration degree of the transport vehicle is larger than or equal to the minimum vibration degree, write bump conditions into early warning information and send the information to the vehicle-mounted visualization equipment.
In S5, the operation conditions include a GIS map, a transportation route, a jolt position, position information, a moving direction, a moving speed, a vibration degree, and cargo fragility level information marked on the map. The early warning information comprises overspeed early warning information and jolt early warning information, and the early warning information is displayed through a display screen of the vehicle-mounted visual equipment and is sounded through a loudspeaker to carry out early warning operation, so that a driver is notified.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a technology for arranging a transportation route according to the fragile grade of goods and detecting and reminding deceleration in real time in the transportation process. In the transportation route planning stage, a proper transportation route can be selected according to the fragility grade of the goods, so that a bumpy road section which is most likely to cause damage of the goods is avoided, and the bumpy risk in the transportation process is reduced. Meanwhile, in the cargo transportation process, the highest passing speed passing through the jolt position is analyzed and calculated through real-time detection of the moving speed of the transport vehicle and the distance information of the jolt position, and early warning operation is carried out, so that sufficient time is reserved for drivers to reduce the speed of the vehicle below the highest passing speed, and the jolt degree in the transportation process is accurately lightened.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a visual data management system based on a GIS map;
Fig. 2 is a flow chart of a visual data management method based on a GIS map.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a visualized data management system based on a GIS map, which comprises a data acquisition module, a data processing module, an early warning judging module and a visualized module.
The data acquisition module is used for acquiring GIS information, cargo information, road condition information and history information in the transportation network; the data processing module is used for selecting a vibration degree interval according to the fragile grade of the transported goods, so as to plan a transportation route and mark the jolt position on the transportation route; the early warning judging unit is used for calculating the down-regulating speed of the transport vehicle, and carrying out early warning operation when the down-regulating speed of the transport vehicle is greater than zero or the vibration degree is greater than or equal to the minimum value of the vibration degree interval; the visualization module is used for displaying the running condition of the transport vehicle in real time and displaying and reminding when the early warning information is received.
The data acquisition module comprises a GIS information acquisition unit, a cargo information acquisition unit, a road condition information acquisition unit and a history information acquisition unit.
The GIS information acquisition unit is used for acquiring the position information, the moving direction and the moving speed of the transport vehicle in real time; the goods information acquisition unit is used for acquiring the fragile grade of the currently transported goods; the road condition information acquisition unit acquires the vibration degree of the current transport vehicle in real time through an acceleration sensor arranged on the transport vehicle; the history information acquisition unit is used for acquiring position information in a history record and the moving speed and the vibration degree of the transport vehicle at the position.
The history record refers to running records of all transport vehicles on the transport network in the past period, each transport vehicle corresponds to one or more running records, and each running record comprises a plurality of pieces of position information and the moving speed and the vibration degree of the transport vehicle at each position; position information, moving speed and vibration degree are acquired through a GIS and an acceleration sensor, and are uploaded to a system after being correlated.
The data processing module comprises a transportation route planning unit and a jolt situation prediction unit.
The transport route planning unit is used for planning a transport route of the transport vehicle. Firstly, obtaining the fragile grade of the current transported goods, and matching the corresponding vibration degree interval in the system; secondly, correlating the position information on the GIS map with the position information in the history record, respectively averaging the vibration degrees of different times at the same position in the history record, and finding out the position information corresponding to the section maximum value of the vibration degree with the average vibration degree larger than the vibration degree as the average vibration degree of the position, and deleting the road sections corresponding to the position information in the GIS map; and finally, inputting a starting point and a destination point on the GIS map to plan a shortest path for the transport vehicle as a transport route.
The jolt situation prediction unit is used for marking jolt positions in the transportation route. And marking the position corresponding to the minimum value of the vibration degree interval with the average vibration degree larger than or equal to the average vibration degree in the GIS map as a bump position.
Different fragile grades of goods have different requirements on the jolting degree of the transport vehicle, and the matched vibration degree intervals are also different. A higher level of frangibility indicates that the transported goods are more likely to break during transportation, and a higher frangibility level should also select a smaller intermediate value between the vibration levels.
The early warning judging module comprises an overspeed early warning unit and a jolt early warning unit.
The overspeed early warning unit is used for early warning the overspeed condition of the transport vehicle. When the transportation route comprises jolting positions, substituting the minimum value of the vibration degree interval into a formula, respectively calculating the highest passing speed of each jolting position, subtracting the highest passing speed from the moving speed of the current transportation vehicle to obtain lower speed, and carrying out early warning operation when the lower speed is greater than zero.
The bumping early warning unit is used for carrying out early warning on bumping conditions of the transport vehicle. And judging whether the current vibration degree of the transport vehicle is larger than or equal to the minimum value of the vibration degree interval in real time, and if so, carrying out early warning operation.
The visual module displays the GIS map and the transportation route, jolt position, position information, moving direction, moving speed, vibration degree and goods fragile grade information marked on the map through the vehicle-mounted visual equipment, and when the system performs early warning operation, a display screen display and loudspeaker sounding mode is adopted to inform a driver.
Referring to fig. 2, the present invention provides a visual data management method based on a GIS map, which includes the following steps:
s1, selecting a vibration degree interval according to the fragile grade of transported goods;
S2, selecting a transportation route for the transportation vehicle through a vibration degree interval, and marking a jolt position;
S3, collecting running information of the transport vehicle in real time, and calculating the down-regulating speed of the transport vehicle according to the situation of the jolt position;
s4, early warning operation is carried out when the lower speed of the transport vehicle is greater than zero or the vibration degree is increased;
S5, displaying running conditions and early warning information of the transport vehicle on the vehicle-mounted visual equipment.
In S1, the friability rating includes light friability, medium friability, and heavy friability; different fragile grades correspond to different vibration degree intervals, and the corresponding vibration degree intervals are selected according to the fragile grades of the transported goods.
The vibration degree refers to the degree of jolt of the transport vehicle during running, and the higher the vibration degree is, the greater the jolt degree is. Different vibration level intervals are matched due to different requirements of different fragile grades of cargoes on the bumping degree of the transport vehicle. The friability grades are light friability, medium friability and heavy friability from low to high respectively, and the corresponding intermediate values of the vibration degree intervals are respectively from big to small, namely the intermediate values of the vibration degree intervals corresponding to the light friability goods are larger than the intermediate values of the vibration degree intervals corresponding to the heavy friability goods.
The vibration degree interval is a closed interval, one of the two end points is the minimum vibration degree, and the other end point is the maximum vibration degree. When the vehicle vibration level is less than the minimum vibration level, the damage risk of the goods is extremely small. When the vehicle vibration degree is greater than the maximum vibration degree, the damage risk of the goods is extremely high. When the vehicle vibration degree is in the vibration degree interval, the damage risk of the cargo is in a controllable range, and the damage risk can be reduced by reducing the speed of the transportation vehicle.
In S2, the steps of selecting the transportation route and marking the jolt position are as follows:
s201, acquiring running records of all transport vehicles on a transport network in the past time, wherein each transport vehicle comprises X running records, and each running record comprises different position information of the transport vehicle, and the moving speed and the vibration degree of the transport vehicle at the position.
S202, disassembling road information on a GIS map into Y road sections, and ensuring that a starting point and an ending point of each road section are connected by only one route; and associating the position information in all the transport vehicle running records with road sections with the same position on the GIS map, wherein each road section is associated with Z pieces of position information, and each piece of position information is associated with only one road section.
S203, respectively obtaining different vibration degrees at the same position in the running record, obtaining an average value, taking the average value as the average vibration degree of the position, obtaining the maximum value of the vibration degree interval corresponding to the transported goods as the maximum vibration degree, marking the position corresponding to the average vibration degree larger than the maximum vibration degree as an unselected state, and deleting the road section corresponding to the position marked as the unselected state in the GIS map.
S204, inputting a starting point and a destination point on the GIS map, and planning a shortest path for the transport vehicle by using the rest road sections to serve as a transport route.
S205, acquiring a minimum value of a vibration degree interval corresponding to the transported goods as a minimum vibration degree, and marking a position corresponding to the average vibration degree larger than or equal to the minimum vibration degree in the GIS map as a jolt position.
Logistics efficiency and transportation safety are mutually exclusive two factors in the whole transportation process, namely, the logistics efficiency is sacrificed to improve transportation safety or the transportation safety is sacrificed to improve logistics efficiency. According to the invention, the high-risk road sections are eliminated and then the transportation route is planned, so that the maximization of logistics efficiency is realized as much as possible on the premise of ensuring the transportation safety of goods, and the transportation risk is controlled within a certain range.
In S3, the travel information includes position information, a moving direction, a moving speed, and a vibration degree. The position information, the moving direction and the moving speed are collected in real time through a GIS, and the vibration degree is collected in real time through an acceleration sensor arranged on the transport vehicle; when the bump position is contained in the transportation route, calculating the down-regulating speed of the transportation vehicle in advance, wherein the down-regulating speed comprises the following steps:
S301, acquiring all jolt position information in a transportation route, respectively searching the movement speed and the vibration degree of the transportation vehicle corresponding to the position information in a driving record, respectively carrying out data fitting on the movement speed and the vibration degree of the transportation vehicle at each jolt position to obtain a relation formula of the movement speed and the vibration degree, wherein each jolt position corresponds to one relation formula, and the formula is as follows:
Where OP is the vibration degree of the transport vehicle, p is the friction coefficient between the transport vehicle and the ground, RD is the road surface flatness, V is the moving speed of the transport vehicle, M is the mass of the transport vehicle, and s is the mass influence coefficient of the transport vehicle.
The road surface flatness reflects the roughness of the road surface, with higher values indicating that the road surface is more bumpy and lower values indicating that the road surface is smoother.
S302, taking the minimum vibration degree as the vibration degree of the transport vehicle, substituting the vibration degree into a corresponding relation formula of each bump position, and calculating to obtain the moving speed of the transport vehicle as the highest passing speed of the corresponding bump position, wherein the highest passing speed of each bump position is different.
When the moving speed of the transport vehicle at the bump position is smaller than the corresponding highest passing speed, the vibration degree of the transport vehicle is smaller than the minimum vibration degree, and the vehicle runs stably.
S303, acquiring the position information, the moving direction and the moving speed of the transport vehicle in real time in the running process of the transport vehicle, judging whether the distance between the current position and the next bump position is equal to an early warning distance in real time, wherein the early warning distance dynamically changes along with the current moving speed of the transport vehicle, and the calculation formula is as follows:
Where V 0 is the current travel speed of the transport vehicle, V 1 is the highest traffic speed corresponding to the next jounce position, a is the acceleration, and t 1 is the time required for the transport vehicle to decelerate to the highest traffic speed corresponding to the jounce position.
Wherein wd is the pre-warning distance, and t 0 is the reserved reaction time. When the distance between the current position of the transport vehicle and the next bump position is equal to the early warning distance, subtracting the highest passing speed corresponding to the next bump position from the current moving speed of the transport vehicle to obtain the lower speed of the transport vehicle.
Since the damage of goods is difficult to completely avoid due to a plurality of factors in the transportation process, the main purpose of the invention is to reduce the risk of damage of goods caused by severe jolting caused by uneven road or overhigh speed as much as possible.
In S4, the early warning operation is classified into overspeed early warning and jolt early warning. And the overspeed early warning is to perform early warning operation when the lower speed of the transport vehicle is greater than zero, write the lower speed into early warning information and send the early warning information to the vehicle-mounted visual equipment. The bump early warning is to perform early warning operation when the vibration degree of the transport vehicle is larger than or equal to the minimum vibration degree, write bump conditions into early warning information and send the information to the vehicle-mounted visualization equipment.
In S5, the operation conditions include a GIS map, a transportation route, a jolt position, position information, a moving direction, a moving speed, a vibration degree, and cargo fragility level information marked on the map. The early warning information comprises overspeed early warning information and jolt early warning information, and the early warning information is displayed through a display screen of the vehicle-mounted visual equipment and is sounded through a loudspeaker to carry out early warning operation, so that a driver is notified.
Embodiment one:
Assuming that A, B and C three transport vehicles are used for transporting the same batch of goods with the same fragile grade, the vibration degree interval corresponding to the goods is [0.5-1.0], the three transport vehicles need to pass through the same jolt position, the friction coefficient between the wheels of the transport vehicles and the ground in the corresponding fitting formula of the jolt position is 0.3, the road surface flatness is 0.05, the mass of the transport vehicles is 5 tons, the mass influence coefficient of the transport vehicles is 1.35, and the highest passing speed passing through the jolt position is calculated by substituting the formula:
Obtaining the highest passing speed of 15m/s;
Assuming that the current moving speeds of A, B and C three transport vehicles are 21m/s, 18m/s and 12m/s respectively, the acceleration is-3 m/s2, the reserved reaction time is 5s, the pre-warning distance is:
a transportation vehicle:
B transport vehicle:
The method comprises the following steps: the transport vehicle A reminds of decelerating when being 141 meters away from the jolt position, the transport vehicle B reminds of decelerating when being 106.5 meters away from the jolt position, and the transport vehicle C does not reminds of decelerating because the current speed is lower than the highest passing speed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1.一种基于GIS地图的可视化数据管理方法，其特征在于，该方法包括以下步骤：1. A method for managing visualized data based on GIS maps, characterized in that the method includes the following steps: S1、根据运输货物易碎等级选择振动程度区间；S1. Select the vibration level range according to the fragility level of the transported goods; S2、通过振动程度区间为运输车辆选取运输路线，并标记颠簸位置；S2. Select a transport route for the transport vehicle based on the vibration intensity range and mark the bumpy areas; S3、实时收集运输车辆行驶信息，根据颠簸位置情况计算运输车辆下调速度；S3. Collect real-time driving information of transport vehicles and calculate the speed reduction of transport vehicles based on the location of bumps; S4、运输车辆下调速度大于零或振动程度变大时进行预警操作；S4. An early warning operation will be performed when the speed of the transport vehicle decreases to more than zero or the degree of vibration increases. S5、车载可视化设备上展示运输车辆运行状况及预警信息；S5, the on-board visualization device displays the operating status and early warning information of transport vehicles; 在S2中，运输路线的选取和颠簸位置的标记步骤如下：In S2, the steps for selecting the transportation route and marking the bumpy locations are as follows: S201、获取过去时间内运输网络上所有运输车辆的行驶记录，每台运输车辆包括X条行驶记录，每条行驶记录包括运输车辆的不同位置信息，以及该位置下运输车辆的移动速度和振动程度；S201. Obtain the driving records of all transport vehicles on the transport network in the past time period. Each transport vehicle includes X driving records. Each driving record includes different location information of the transport vehicle, as well as the moving speed and vibration level of the transport vehicle at that location. S202、将GIS地图上道路信息拆解成Y个路段，确保每个路段的起点和终点之间有且只有一条路线连接；将所有运输车辆行驶记录中的位置信息与GIS地图上相同位置的路段进行关联，每个路段关联Z个位置信息，每个位置信息只关联一个路段；S202. Decompose the road information on the GIS map into Y road segments, ensuring that there is only one route connecting the start and end points of each road segment; associate the location information in the driving records of all transport vehicles with the road segments at the same location on the GIS map, with each road segment associated with Z location information, and each location information associated with only one road segment. S203、分别获取行驶记录中同一个位置下的不同振动程度，求取平均值后作为该位置的平均振动程度，获取运输货物对应振动程度区间的最大值作为最大振动程度，将平均振动程度大于最大振动程度所对应的位置标记为不可选状态，将标记为不可选状态的位置对应路段在GIS地图中删除；S203. Obtain the different vibration levels at the same location in the driving record, calculate the average value as the average vibration level at that location, obtain the maximum value of the vibration level range corresponding to the transported goods as the maximum vibration level, mark the location corresponding to the average vibration level greater than the maximum vibration level as unselectable, and delete the road segment corresponding to the location marked as unselectable in the GIS map. S204、在GIS地图上输入起点和终点利用剩余路段为运输车辆规划出一条最短路径作为运输路线；S204. Input the starting point and the destination on the GIS map and use the remaining road segments to plan the shortest path for the transport vehicles as the transport route. S205、获取运输货物对应振动程度区间的最小值作为最小振动程度，将GIS地图中平均振动程度大于或等于最小振动程度所对应的位置标记为颠簸位置；S205. Obtain the minimum value of the vibration level range corresponding to the transported goods as the minimum vibration level, and mark the locations in the GIS map where the average vibration level is greater than or equal to the minimum vibration level as bumpy locations. 在S3中，行驶信息包括位置信息、移动方向、移动速度和振动程度；位置信息、移动方向和移动速度通过GIS实时收集，振动程度通过安装在运输车辆上的加速度传感器实时收集；当运输路线中包含颠簸位置时，提前计算运输车辆的下调速度，步骤如下：In S3, driving information includes location information, direction of movement, speed of movement, and vibration level. Location information, direction of movement, and speed of movement are collected in real time via GIS, while vibration level is collected in real time via accelerometers installed on the transport vehicle. When the transport route includes bumpy sections, the reduced speed of the transport vehicle is calculated in advance, as follows: S301、获取运输路线中所有颠簸位置信息，在行驶记录中分别检索这些位置信息所对应运输车辆的移动速度和振动程度，分别对每个颠簸位置下的运输车辆移动速度和振动程度进行数据拟合，得到移动速度和振动程度的关系公式，每个颠簸位置对应一个关系公式，公式如下：S301. Obtain information on all bumpy locations along the transportation route. Retrieve the corresponding vehicle speed and vibration level from the driving record. Perform data fitting on the vehicle speed and vibration level at each bumpy location to obtain a formula relating speed and vibration level. Each bumpy location corresponds to one formula, as follows: ； ; 式中，OP为运输车辆的振动程度，p为运输车辆与地面的摩擦系数，RD为路面平整度，V为运输车辆的移动速度，M为运输车辆的质量，s为运输车辆质量影响系数；In the formula, OP is the vibration level of the transport vehicle, p is the friction coefficient between the transport vehicle and the ground, RD is the road surface smoothness, V is the moving speed of the transport vehicle, M is the mass of the transport vehicle, and s is the mass influence coefficient of the transport vehicle. S302、将最小振动程度作为运输车辆的振动程度，分别代入每个颠簸位置对应的关系公式中，计算得到运输车辆的移动速度作为对应颠簸位置的最高通行速度，每个颠簸位置的最高通行速度不同；S302. The minimum vibration level is taken as the vibration level of the transport vehicle. Substitute it into the relationship formula corresponding to each bumpy position to calculate the moving speed of the transport vehicle as the maximum passing speed at the corresponding bumpy position. The maximum passing speed is different for each bumpy position. S303、在运输车辆行驶过程中实时采集运输车辆的位置信息、移动方向和移动速度，实时判断当前位置与下一个颠簸位置之间的距离是否等于预警距离，预警距离跟随运输车辆当前的移动速度动态变化，计算公式如下：S303. During the operation of the transport vehicle, the vehicle's location, direction of movement, and speed are collected in real time. The distance between the current location and the next bumpy location is determined in real time to be equal to the warning distance. The warning distance dynamically changes with the current speed of the transport vehicle, and the calculation formula is as follows: ； ; 式中，是运输车辆当前的移动速度，是下一个颠簸位置对应的最高通行速度，a是加速度，t1是运输车辆减速到颠簸位置对应的最高通行速度所需时间；In the formula, This is the current speed of the transport vehicle. It is the maximum speed corresponding to the next bumpy position, a is the acceleration, and t1 is the time required for the transport vehicle to decelerate to the maximum speed corresponding to the bumpy position. ； ; 式中，为预警距离，t0是预留反应时间；当运输车辆当前位置与下一个颠簸位置之间的距离等于预警距离时，将运输车辆当前的移动速度减去下一个颠簸位置对应的最高通行速度得到运输车辆下调速度。In the formula, The warning distance is t0 , which is the reserved reaction time. When the distance between the current position of the transport vehicle and the next bumpy position is equal to the warning distance, the speed of the transport vehicle is reduced by subtracting the maximum speed corresponding to the next bumpy position from the current speed of the transport vehicle. 2.根据权利要求1所述的一种基于GIS地图的可视化数据管理方法，其特征在于：在S1中，易碎等级包括轻度易碎、中度易碎和重度易碎；不同易碎等级对应不同振动程度区间，根据运输货物的易碎等级选取对应振动程度区间。2. The visualization data management method based on GIS map according to claim 1, characterized in that: in S1, the fragility level includes slightly fragile, moderately fragile and heavily fragile; different fragility levels correspond to different vibration degree ranges, and the corresponding vibration degree range is selected according to the fragility level of the transported goods. 3.根据权利要求1所述的一种基于GIS地图的可视化数据管理方法，其特征在于：在S4中，预警操作分为超速预警和颠簸预警；超速预警是指当运输车辆下调速度大于零时进行预警操作，将下调速度写入到预警信息中，发送至车载可视化设备；颠簸预警是指当运输车辆振动程度变大到大于或等于最小振动程度时进行预警操作，将颠簸情况写入到预警信息中，发送至车载可视化设备；3. The visualization data management method based on GIS map according to claim 1, characterized in that: in S4, the early warning operation is divided into overspeed warning and bump warning; the overspeed warning refers to the early warning operation when the speed reduction of the transport vehicle is greater than zero, the speed reduction is written into the early warning information and sent to the vehicle visualization device; the bump warning refers to the early warning operation when the vibration level of the transport vehicle increases to greater than or equal to the minimum vibration level, the bump situation is written into the early warning information and sent to the vehicle visualization device; 在S5中，运行状况包括GIS地图以及图上标注的运输路线、颠簸位置、位置信息、移动方向、移动速度、振动程度和货物易碎等级信息；预警信息包括超速预警信息和颠簸预警信息，这些信息通过车载可视化设备的显示屏展示和扬声器发声的方式来进行预警操作，通知驾驶人员。In S5, the operational status includes a GIS map and the transportation route, bump location, location information, direction of movement, speed of movement, vibration level, and cargo fragility level marked on the map; the warning information includes overspeed warning information and bump warning information. This information is displayed on the screen of the on-board visualization device and announced by the speaker to notify the driver. 4.一种基于GIS地图的可视化数据管理系统，应用于如权利要求1所述的一种基于GIS地图的可视化数据管理方法，其特征在于：该系统包括数据采集模块、数据处理模块、预警判断模块和可视化模块；4. A GIS map-based visualization data management system, applied to the GIS map-based visualization data management method as described in claim 1, characterized in that: the system includes a data acquisition module, a data processing module, an early warning judgment module, and a visualization module; 所述数据采集模块用于采集运输网络中的GIS信息、货物信息、路况信息和历史信息；所述数据处理模块用于根据运输货物的易碎等级选择振动程度区间，从而规划运输路线并标注运输路线上的颠簸位置；所述预警判断单元用于计算运输车辆的下调速度，当运输车辆下调速度大于零，或者振动程度大于或等于振动程度区间最小值时进行预警操作；所述可视化模块用于实时显示运输车辆的运行状况，以及当接收到预警信息时进行展示提醒。The data acquisition module is used to collect GIS information, cargo information, road condition information, and historical information from the transportation network; the data processing module is used to select the vibration level range based on the fragility level of the transported cargo, thereby planning the transportation route and marking the bumpy locations on the transportation route; the early warning judgment unit is used to calculate the reduction speed of the transport vehicle, and to perform an early warning operation when the reduction speed of the transport vehicle is greater than zero, or when the vibration level is greater than or equal to the minimum value of the vibration level range; the visualization module is used to display the operating status of the transport vehicle in real time, and to display reminders when early warning information is received. 5.根据权利要求4所述的一种基于GIS地图的可视化数据管理系统，其特征在于：所述数据采集模块包括GIS信息采集单元、货物信息采集单元、路况信息采集单元和历史信息采集单元；5. A GIS map-based visualization data management system according to claim 4, characterized in that: the data acquisition module includes a GIS information acquisition unit, a cargo information acquisition unit, a road condition information acquisition unit, and a historical information acquisition unit; 所述GIS信息采集单元用于实时采集运输车辆的位置信息、移动方向和移动速度；所述货物信息采集单元用于采集当前运输货物的易碎等级；所述路况信息采集单元通过安装在运输车辆上的加速度传感器实时采集当前运输车辆的振动程度；所述历史信息采集单元用于采集历史记录中的位置信息，以及该位置下的运输车辆移动速度和振动程度。The GIS information acquisition unit is used to collect the location information, direction of movement, and speed of the transport vehicle in real time; the cargo information acquisition unit is used to collect the fragility level of the currently transported cargo; the road condition information acquisition unit collects the vibration level of the currently transported vehicle in real time through an acceleration sensor installed on the transport vehicle; the historical information acquisition unit is used to collect the location information in the historical records, as well as the speed and vibration level of the transport vehicle at that location. 6.根据权利要求4所述的一种基于GIS地图的可视化数据管理系统，其特征在于：所述数据处理模块包括运输路线规划单元和颠簸情况预测单元；6. A GIS map-based visualization data management system according to claim 4, characterized in that: the data processing module includes a transportation route planning unit and a bump situation prediction unit; 所述运输路线规划单元用于规划运输车辆的运输路线；首先，获取当前运输货物的易碎等级，在系统中匹配对应的振动程度区间；其次，将GIS地图上的位置信息与历史记录中的位置信息进行关联，分别对历史记录中同一个位置下不同时间的振动程度求取平均值，作为该位置的平均振动程度，找到平均振动程度大于振动程度区间最大值所对应的位置信息，删除GIS地图中这些位置信息对应的路段；最后，在GIS地图上输入起点和终点为运输车辆规划一条最短路径作为运输路线；The transportation route planning unit is used to plan the transportation routes of the transport vehicles. First, it obtains the fragility level of the current transported goods and matches the corresponding vibration level range in the system. Second, it associates the location information on the GIS map with the location information in the historical records, calculates the average vibration level at different times for the same location in the historical records, and finds the location information corresponding to the average vibration level that is greater than the maximum value of the vibration level range. It then deletes the road segments corresponding to these location information in the GIS map. Finally, it inputs the starting point and the ending point on the GIS map to plan the shortest path for the transport vehicles as the transportation route. 所述颠簸情况预测单元用于标记运输路线中的颠簸位置；将GIS地图中平均振动程度大于或等于振动程度区间最小值所对应的位置标记为颠簸位置。The bump prediction unit is used to mark bump locations in the transportation route; the location corresponding to the average vibration level in the GIS map that is greater than or equal to the minimum value of the vibration level range is marked as a bump location. 7.根据权利要求4所述的一种基于GIS地图的可视化数据管理系统，其特征在于：所述预警判断模块包括超速预警单元和颠簸预警单元；7. A GIS map-based visualization data management system according to claim 4, characterized in that: the early warning judgment module includes an overspeed early warning unit and a turbulence early warning unit; 所述超速预警单元用于对运输车辆超速情况进行预警；当运输路线中包含颠簸位置时，将振动程度区间最小值代入公式，分别计算每个颠簸位置的最高通行速度，将当前运输车辆的移动速度减去最高通行速度得到下调速度，下调速度大于零则进行预警操作；The overspeed warning unit is used to warn of overspeeding by transport vehicles. When the transport route includes bumpy sections, the minimum value of the vibration level range is substituted into the formula to calculate the maximum speed at each bumpy section. The current speed of the transport vehicle is subtracted from the maximum speed to obtain the speed reduction. If the speed reduction is greater than zero, a warning operation is performed. 所述颠簸预警单元用于对运输车辆颠簸情况进行预警；实时判断运输车辆当前振动程度是否大于或等于振动程度区间最小值，结果为是则进行预警操作。The bump warning unit is used to warn of the bump situation of the transport vehicle; it determines in real time whether the current vibration level of the transport vehicle is greater than or equal to the minimum value of the vibration level range, and if the result is yes, it performs a warning operation. 8.根据权利要求4所述的一种基于GIS地图的可视化数据管理系统，其特征在于：所述可视化模块通过车载可视化设备展示GIS地图以及图上标注的运输路线、颠簸位置、位置信息、移动方向、移动速度、振动程度和货物易碎等级信息，在系统进行预警操作时，采用显示屏展示和扬声器发声的方式通知驾驶人员。8. A GIS map-based visualization data management system according to claim 4, characterized in that: the visualization module displays the GIS map and the transportation route, bump location, location information, direction of movement, speed of movement, vibration level and cargo fragility level information marked on the map through an in-vehicle visualization device; when the system performs an early warning operation, it notifies the driver by displaying on the screen and emitting sound through the speaker.
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Denomination of invention: A visualization data management system and method based on GIS map

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