Dangerous chemical transportation tracking system

Abstract

The invention, which belongs to the technical field of hazardous chemical substance transportation tracking, discloses a hazardous chemical substance transportation tracking system comprising an information management module, a vehicle positioning module, a data acquisition module, a tunnel analysis module and a vehicle path simulation module. And the information management module is used for collecting dangerous chemical vehicle related information, including driver information and transport vehicle information, establishing a storage database, performing file establishment and data storage on drivers and vehicles, and establishing an emergency contact file based on each dangerous chemical transport project. According to the hazardous chemical substance transportation tracking system, real-time tracking and tunnel path simulation of hazardous chemical substance transportation vehicles can be realized, and the real-time tracking of the hazardous chemical substance transportation vehicles can be realized by combining the predicted normal average speed and the actual passing distance and combining the predicted average speed and the tunnel length based on the actual passing time of the current hazardous chemical substance transportation vehicles. And the distance difference value of the hazardous chemical substance transportation vehicles is judged, and the transportation dangerous behavior is judged so as to improve the safety in the hazardous chemical substance transportation process.

Description

Technical Field

[0001] The invention belongs to the technical field of hazardous chemical transportation tracking, and in particular is a hazardous chemical transportation tracking system. Background Art

[0002] Hazardous chemical transportation refers to the activity of transporting chemical substances with flammable, explosive, toxic, harmful, corrosive or other special hazardous properties from one location to another. Strict safety measures and technical specifications for hazardous chemical transportation are required to prevent accidents during transportation and avoid damage to people, property and the environment; During the transportation of hazardous chemicals by vehicles, GPS is often used to track hazardous chemical vehicles in real time to ensure that potential threats can be responded to in a timely manner. However, when hazardous chemical vehicles pass through tunnels, due to the special structure of the tunnels, GPS signals are often lost, making it impossible to grasp the location of hazardous chemical vehicles in the tunnels, and it is difficult to analyze and determine possible dangerous behaviors of hazardous chemical vehicles in the tunnels, which poses a safety risk. In view of the above, this case proposes a hazardous chemicals transportation tracking system to solve the above technical problems. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a hazardous chemicals transportation tracking system, which solves the above technical problems by improving the detection method and the processing method.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A hazardous chemicals transportation tracking system includes an information management module, a vehicle positioning module, a data acquisition module, a tunnel analysis module, and a vehicle path simulation module; The information management module collects information related to hazardous chemical vehicles, including driver information and transport vehicle information, and establishes a storage database to create and store files for drivers and vehicles, and establishes emergency contact files based on each hazardous chemical transportation project, including the name and mobile phone number of the emergency contact; The vehicle positioning module includes a GPS positioning system for locating a hazardous chemical transport vehicle in motion and tracking the geographic location of the transport vehicle in real time; The data acquisition module collects the driving data of hazardous chemicals transport vehicles, including driving speed and driving route, and collects tunnel data in the current driving route of hazardous chemicals transport vehicles, including tunnel length and real-time vehicle information at tunnel entrances and exits, and transmits the data to the tunnel analysis module; The tunnel analysis module analyzes the tunnel data on the route of the hazardous chemicals transport vehicle by receiving the transmission data from the data acquisition module, evaluates the tunnel vehicle condition in the current period based on the real-time vehicle information at the tunnel entrance and exit, and transmits the evaluation data to the vehicle path simulation module; The vehicle path simulation module simulates and tracks the tunnel path of the hazardous chemicals transport vehicle based on the tunnel analysis data transmitted by the tunnel analysis module and the driving data of the hazardous chemicals transport vehicle collected by the data acquisition module, and predicts the position of the hazardous chemicals transport vehicle in the tunnel.

[0005] Furthermore, the tunnel analysis module analyzes the tunnel data on the route of the hazardous chemicals transport vehicle by receiving the transmission data from the data acquisition module, evaluates the tunnel vehicle condition in the current period based on the real-time vehicle information at the tunnel entrance and exit, and transmits the evaluation data to the vehicle path simulation module, including the following steps: Through the data acquisition module, tunnel data on the route of hazardous chemicals transport vehicles is received, including the length of the tunnel, the instantaneous speed of the real-time vehicles entering and exiting the tunnel, and the time it takes for different vehicles to pass through the tunnel. The average speed of the vehicles in the current tunnel is calculated for each of the vehicles traveling. Based on the average speed of the selected vehicles, the current tunnel traffic condition is evaluated and analyzed, and the current tunnel congestion and internal traffic condition are analyzed.

[0006] Furthermore, the data acquisition module receives tunnel data on the route of hazardous chemicals transport vehicles, including the length of the tunnel, the instantaneous speed of the real-time vehicles entering and exiting the tunnel, and the time it takes for different vehicles to pass through the tunnel. The average speed of the vehicles in the current tunnel is calculated for each of the vehicles traveling. The specific steps and algorithm formula are as follows: Based on the basic data collected by the data acquisition module, simple random non-repetitive sampling is used to select based on the speed range. The selected vehicles are recorded with the tunnel entrance speed. Tunnel exit speed , based on the current tunnel length The travel time of the selected vehicle , respectively calculate the average speed, the algorithm formula is: ; in, Representative selected The average speed of vehicles passing through the current tunnel; The data acquisition module collects the traffic flow at the entrance and exit of the current tunnel at the same time, and obtains the traffic flow at the entrance of the tunnel at the same time. The traffic volume at the tunnel exit at the same time , calculate the flow difference between the tunnel inlet and outlet at the same time, and the algorithm formula is: ; in, Represents the tunnel inlet and outlet flow difference at the current moment, based on the flow difference threshold The steps for determining the traffic volume in the tunnel at the current moment are as follows: when > When , it means that the number of inbound vehicles is much larger than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when < When , it means that the number of inbound vehicles is much smaller than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when ≤ ≤ When , it means that the import and export vehicles are relatively balanced at the same time, which means that the tunnel is normal at the current moment.

[0007] Furthermore, the current tunnel traffic condition is evaluated and analyzed based on the average speed of the selected vehicles, and the congestion and internal traffic condition of the current tunnel are analyzed. The specific steps are: Collect the current tunnel's historical vehicle entrance speed and the corresponding historical average tunnel speed of vehicles, and divide the intervals based on the speed intervals. The steps are as follows: Divide the speed range into 60-65, 65-70, 70-75, 75-80, 80-85, and collect historical statistics Average speed of tunnel vehicles in different sections within a time period , , , , , based on the choice of vehicle Match the corresponding speed range, by comparing The average speed of vehicles in the current tunnel is determined by comparing it with the average speed of vehicles in the historical tunnels in the corresponding speed range: When The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnels in the corresponding speed range. ; Accumulated judgment value ,when > When , it means the current average speed of the tunnel is abnormal; when < When , it means the current average speed in the tunnel is normal; Based on time interval , continuously extract the traffic flow of the current tunnel entrance and exit at the same time for 7 times to obtain the flow difference , based on the flow difference threshold To determine the tunnel flow: when > or < When, it means that the tunnel traffic is abnormal at the current moment, record ; when ≤ ≤ When, it means that the import and export vehicles are relatively balanced at the same time, and the record , cumulative judgment value : when When it is >3.5, it means that the current tunnel traffic data is abnormal; when When it is less than 3.5, it means that the current tunnel traffic data is normal; When the current tunnel traffic flow data is normal and the current tunnel average speed is normal, it means that the current tunnel traffic condition is normal, that is, there is no congestion; When the current tunnel traffic flow data is abnormal and the current tunnel average speed is abnormal, it means that the current tunnel traffic condition is abnormal, that is, there is congestion.

[0008] Furthermore, in the tunnel analysis module, an auxiliary determination system is provided, that is, when the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal or when the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a secondary analysis is performed on the current tunnel. The specific steps are: When the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal, or the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a simple random non-repetitive sampling is used to select The average speed comparison is performed again based on the selected vehicle's import speed matching speed interval. The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnels in the corresponding speed range. ; Accumulated judgment value , make a secondary judgment on the current vehicle condition: when > When , it means that the current tunnel traffic condition is abnormal, that is, there is congestion; when < , it means the current tunnel traffic condition is normal.

[0009] Furthermore, the vehicle path simulation module simulates and tracks the tunnel path of the hazardous chemicals transport vehicle based on the tunnel analysis data transmitted by the tunnel analysis module and the driving data of the hazardous chemicals transport vehicle collected by the data acquisition module, and predicts the position of the hazardous chemicals transport vehicle in the tunnel. The specific steps are as follows: Based on the tunnel analysis module, the vehicle condition analysis results of the current tunnel are received, and based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, the corresponding speed range is matched, and the average speed of the hazardous chemicals transport vehicle is predicted; Based on the predicted average speed of hazardous chemicals vehicles, a tunnel driving path simulation prediction is conducted for current hazardous chemicals transport vehicles.

[0010] Furthermore, the tunnel analysis module receives the vehicle condition analysis result of the current tunnel, matches the corresponding speed interval based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, and predicts the average speed of the hazardous chemicals transport vehicle. The specific steps are: Receive the vehicle condition analysis results of the current tunnel. When the vehicle condition of the current tunnel is normal, match the speed range based on the tunnel entrance speed of the current hazardous chemicals transport vehicle. The speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85. Based on historical Average speed of tunnel vehicles in different sections within a time period , , , , , the average speed of tunnel vehicles in the corresponding historical time period is used as the predicted average speed of current hazardous chemicals transport vehicles; When the current tunnel condition is abnormal, the speed range is matched based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, where the speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85; Based on the average speed of the selected vehicle in the speed range, the total average speed in the relevant speed range in the current period is calculated. The algorithm formula is: ; in, That is, the comprehensive average speed of the vehicle selected for the current speed range, is the sum of the average speeds of all selected vehicles in the current speed range, is the total number of vehicles in the current speed range. As the predicted average speed of current hazardous chemicals transport vehicles.

[0011] Furthermore, based on the predicted average speed of hazardous chemicals vehicles, the tunnel driving path simulation prediction of the current hazardous chemicals transport vehicles is carried out, and the specific steps are as follows: Based on the current tunnel length The travel time of hazardous chemicals transport vehicles in the tunnel , combined with the current predicted average speed of hazardous chemicals transport vehicles , calculate the current position of the hazardous chemicals transport vehicle in the tunnel in real time, and the algorithm formula is: ; in, for The driving distance of hazardous chemicals transport vehicles at time is based on the driving time of hazardous chemicals transport vehicles in the tunnel , continuously updating the travel distance of hazardous chemicals transport vehicles to simulate the location of hazardous chemicals transport vehicles; At the same time, according to the actual tunnel travel time of hazardous chemicals transport vehicles , based on the predicted average speed Calculate predicted travel distance ,in , calculate the distance difference ; Based on abnormal driving distance threshold Evaluation of vehicle tunnel passage: when ≤ When the tunnel is open, it means that the hazardous chemicals transport vehicles are passing through normally, and the abnormal reporting value is recorded. ; when > When the tunnel is abnormal, it means that the current hazardous chemicals transport vehicle is passing abnormally, and the abnormal reporting value is recorded. ; Statistics of total abnormal report value ,when >4:00, transmit abnormal information via SMS to the mobile phone of the current emergency person in charge of hazardous chemicals transportation.

[0012] Furthermore, the data acquisition module collects the driving speed data of the hazardous chemicals transport vehicle through the GPS satellite system, and obtains the driving route of the current hazardous chemicals transport vehicle based on the navigation information of the hazardous chemicals transport vehicle, and marks the tunnels on the driving route to obtain the length data of the tunnels; Through the GPS data of other vehicles on the route, the real-time data of vehicles passing through tunnels on the current hazardous chemicals transport route is obtained, including the instantaneous speed of vehicles entering and exiting the tunnel and the time it takes for different vehicles to pass through the tunnel, and the data is transmitted to the tunnel analysis module.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, data is collected on the tunnel that the current hazardous chemical transport vehicle is about to pass through, the average tunnel speed of vehicles with different tunnel entrance speeds is analyzed, and the vehicle condition of the current tunnel is analyzed and determined in combination with the inlet and outlet flow data of the current tunnel, so as to facilitate the analysis of the subsequent driving conditions of hazardous chemical transport vehicles in the tunnel, thereby enhancing the practicality of the system; 2. In the present invention, by acquiring the tunnel entrance speed of the hazardous chemical transport vehicle, matching different average speed data based on different tunnel vehicle conditions, and combining the travel time of the hazardous chemical transport vehicle, the path simulation of the hazardous chemical transport vehicle in the tunnel is performed to grasp the expected travel position of the hazardous chemical transport vehicle in the tunnel under different vehicle conditions; 3. In the present invention, based on the actual travel time of the current hazardous chemical transport vehicle, combined with the predicted average speed and tunnel length, the distance difference of the hazardous chemical transport vehicle is determined to evaluate the driving condition of the hazardous chemical transport vehicle in the current tunnel, so as to warn the current hazardous chemical transport vehicle of possible dangerous behavior in the tunnel. By recording the abnormal reporting value, abnormal reporting processing can be performed after multiple abnormalities, and relevant personnel can be notified to take emergency measures to reduce the risk of accidents, thereby enhancing the functionality of the system; The entire hazardous chemicals transportation tracking system can realize real-time tracking of hazardous chemicals transportation vehicles, tunnel path simulation, and combine the predicted normal average speed with the actual travel distance. Based on the actual travel time of the current hazardous chemicals transportation vehicles, combined with the predicted average speed and tunnel length, the distance difference of the hazardous chemicals transportation vehicles is determined, and the dangerous transportation behavior is determined to improve the safety of the hazardous chemicals transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a block diagram of a hazardous chemicals transportation tracking system of the present invention. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Embodiment 1: like Figure 1 As shown, a hazardous chemicals transportation tracking system includes an information management module, a vehicle positioning module, a data acquisition module, a tunnel analysis module, and a vehicle path simulation module; The information management module collects information related to hazardous chemical vehicles, including driver information and transport vehicle information, and establishes a storage database to create and store files for drivers and vehicles. It also creates emergency contact files based on each hazardous chemical transportation project, which include the name and mobile phone number of the emergency contact. Vehicle positioning module, including GPS positioning system, is used to locate the hazardous chemicals transport vehicle in motion and track the geographic location of the transport vehicle in real time; The data acquisition module collects the driving data of hazardous chemicals transport vehicles, including driving speed and driving route, and collects the tunnel data in the current driving route of hazardous chemicals transport vehicles, including tunnel length and real-time vehicle information at tunnel entrances and exits, and transmits the data to the tunnel analysis module; The data acquisition module collects the driving speed data of hazardous chemicals transport vehicles through the GPS satellite system. At the same time, based on the navigation information of hazardous chemicals transport vehicles, it obtains the driving route of the current hazardous chemicals transport vehicles, marks the tunnels on the driving route, and obtains the length data of the tunnels; Through the GPS data of other vehicles on the route, the real-time data of vehicles passing through tunnels on the current hazardous chemicals transport route is obtained, including the instantaneous speed of vehicles entering and exiting the tunnel and the time it takes for different vehicles to pass through the tunnel, and the data is transmitted to the tunnel analysis module; The tunnel analysis module analyzes the tunnel data on the route of hazardous chemicals transport vehicles by receiving the transmission data from the data acquisition module, evaluates the tunnel vehicle conditions in the current period based on the real-time vehicle information at the tunnel entrance and exit, and transmits the evaluation data to the vehicle path simulation module, including the following steps: Through the data acquisition module, tunnel data on the route of hazardous chemicals transport vehicles is received, including the length of the tunnel, the instantaneous speed of the real-time vehicles entering and exiting the tunnel, and the time it takes for different vehicles to pass through the tunnel. The average speed of the vehicles in the current tunnel is calculated for each of the vehicles traveling. The specific steps and algorithm formula are as follows: Based on the basic data collected by the data acquisition module, simple random non-repetitive sampling is used to select based on the speed range. The selected vehicles are recorded with the tunnel entrance speed. Tunnel exit speed , based on the current tunnel length The travel time of the selected vehicle , respectively calculate the average speed, the algorithm formula is: ; in, Representative selected The average speed of vehicles passing through the current tunnel; The data acquisition module collects the traffic flow at the entrance and exit of the current tunnel at the same time, and obtains the traffic flow at the entrance of the tunnel at the same time. The traffic volume at the tunnel exit at the same time , calculate the flow difference between the tunnel inlet and outlet at the same time, and the algorithm formula is: ; in, Represents the tunnel inlet and outlet flow difference at the current moment, based on the flow difference threshold The steps for determining the traffic volume in the tunnel at the current moment are as follows: when > When , it means that the number of inbound vehicles is much larger than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when < When , it means that the number of inbound vehicles is much smaller than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when ≤ ≤ When , it means that the import and export vehicles are relatively balanced at the same time, which means that the tunnel is normal at the current moment.

[0017] It should be noted that when the traffic conditions in the tunnel are relatively stable and normal, the number of inbound and outbound vehicles at the same time should be kept within a reasonable range. and , can determine the current tunnel situation, threshold The setting needs to be made by collecting the historical data of the current tunnel and analyzing the average difference between the current tunnel inlet and outlet traffic. Different tunnels have different thresholds. , It is usually set to 50 to ensure that there is sufficient data support for subsequent analysis. It is always an odd number, and the speed intervals are 60-65, 65-70, 70-75, 75-80, and 80-85, that is, each sampling ensures that 10 samples are obtained in each interval, and the sample acquisition value can be adjusted according to the current traffic volume on the highway.

[0018] Based on the average speed of the selected vehicles, the current tunnel traffic conditions are evaluated and analyzed, and the current tunnel congestion and internal traffic conditions are analyzed. The specific steps are as follows: Collect the current tunnel's historical vehicle entrance speed and the corresponding historical average tunnel speed of vehicles, and divide the intervals based on the speed intervals. The steps are as follows: Divide the speed range into 60-65, 65-70, 70-75, 75-80, 80-85, and collect historical statistics Average speed of tunnel vehicles in different sections within a time period , , , , , based on the choice of vehicle Match the corresponding speed range, by comparing The average speed of vehicles in the current tunnel is determined by comparing it with the average speed of vehicles in the historical tunnels in the corresponding speed range: When The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnels in the corresponding speed range. ; Accumulated judgment value ,when > When , it means the current average speed of the tunnel is abnormal; when < When , it means the current average speed in the tunnel is normal; Based on time interval , continuously extract the traffic flow of the current tunnel entrance and exit at the same time for 7 times to obtain the flow difference , based on the flow difference threshold To determine the tunnel flow: when > or < When, it means that the tunnel traffic is abnormal at the current moment, record ; when ≤ ≤ When, it means that the import and export vehicles are relatively balanced at the same time, and the record , cumulative judgment value : when When it is >3.5, it means that the current tunnel traffic data is abnormal; when When it is less than 3.5, it means that the current tunnel traffic data is normal; When the current tunnel traffic flow data is normal and the current tunnel average speed is normal, it means that the current tunnel traffic condition is normal, that is, there is no congestion; When the current tunnel traffic flow data is abnormal and the current tunnel average speed is abnormal, it means that the current tunnel traffic condition is abnormal, that is, there is congestion.

[0019] It should be noted that the time interval The value needs to be flexibly set according to the length of the current tunnel, that is, the longer the tunnel, the shorter the time interval. The larger the value, the shorter the tunnel time interval. The smaller the value of The time period is usually 7 days to avoid large data errors caused by too long a time period. By comprehensively analyzing the traffic flow data of the current tunnel and the average speed data of selected vehicles, the congestion situation of the current tunnel can be analyzed and determined, thereby facilitating subsequent path tracking simulation of hazardous chemicals transport vehicles.

[0020] In the tunnel analysis module, an auxiliary judgment system is set up, that is, when the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal, or when the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a secondary analysis is performed on the current tunnel. The specific steps are: When the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal, or the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a simple random non-repetitive sampling is used to select The average speed comparison is performed again based on the selected vehicle's import speed matching speed interval. The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnels in the corresponding speed range. ; Accumulated judgment value , make a secondary judgment on the current vehicle condition: when > When , it means that the current tunnel traffic condition is abnormal, that is, there is congestion; when < , it means the current tunnel traffic condition is normal.

[0021] It should be noted that when the average speed conflicts with the abnormal traffic flow, simple non-repetitive random sampling is used to re-extract vehicles in different speed ranges to determine the average speed abnormality. The current vehicle condition in the tunnel is determined based on the judgment result of the secondary extraction. The average speed is the actual performance of the vehicle in the tunnel, which directly reflects the vehicle's driving efficiency and traffic smoothness. If the average speed is abnormally higher or lower than the historical average, it directly indicates that there is driving resistance, local congestion or other traffic problems in the tunnel. By re-extracting the driving vehicles, the actual traffic conditions of the current tunnel can be verified indirectly.

[0022] Embodiment 2: The vehicle path simulation module simulates and tracks the tunnel path of hazardous chemicals transport vehicles based on the tunnel analysis data transmitted by the tunnel analysis module and the driving data of hazardous chemicals transport vehicles collected by the data acquisition module, and predicts the position of hazardous chemicals transport vehicles in the tunnel. The specific steps are as follows: Based on the tunnel analysis module, the vehicle condition analysis results of the current tunnel are received, and based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, the corresponding speed range is matched, and the average speed of the hazardous chemicals transport vehicle is predicted. The specific steps are as follows: Receive the vehicle condition analysis results of the current tunnel. When the vehicle condition of the current tunnel is normal, match the speed range based on the tunnel entrance speed of the current hazardous chemicals transport vehicle. The speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85. Based on historical Average speed of tunnel vehicles in different sections within a time period , , , , , the average speed of tunnel vehicles in the corresponding historical time period is used as the predicted average speed of current hazardous chemicals transport vehicles; When the current tunnel condition is abnormal, the speed range is matched based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, where the speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85; Based on the average speed of the selected vehicle in the speed range, the total average speed in the relevant speed range in the current period is calculated. The algorithm formula is: ; in, That is, the comprehensive average speed of the vehicle selected for the current speed range, is the sum of the average speeds of all selected vehicles in the current speed range, is the total number of vehicles in the current speed range. As the predicted average speed of current hazardous chemicals transport vehicles.

[0023] It should be noted that when a hazardous chemical transport vehicle is about to enter a tunnel, by sampling the vehicles passing through the tunnel, it is possible to determine whether there is abnormal congestion in the current tunnel. In the case of abnormal congestion, by matching the average speed of the sampled vehicles to the current hazardous chemical transport vehicle based on the vehicle import speed, the tunnel path of the current hazardous chemical transport vehicle can be simulated to enhance vehicle safety.

[0024] Based on the predicted average speed of hazardous chemicals vehicles, the tunnel driving path simulation prediction of the current hazardous chemicals transport vehicles is carried out. The specific steps are as follows: Based on the current tunnel length The travel time of hazardous chemicals transport vehicles in the tunnel , combined with the current predicted average speed of hazardous chemicals transport vehicles , calculate the current position of the hazardous chemicals transport vehicle in the tunnel in real time, and the algorithm formula is: ; in, for The driving distance of hazardous chemicals transport vehicles at time is based on the driving time of hazardous chemicals transport vehicles in the tunnel , continuously updating the travel distance of hazardous chemicals transport vehicles to simulate the location of hazardous chemicals transport vehicles; At the same time, according to the actual tunnel travel time of hazardous chemicals transport vehicles , based on the predicted average speed Calculate predicted travel distance ,in , calculate the distance difference ; Based on abnormal driving distance threshold Evaluation of vehicle tunnel passage: when ≤ When the tunnel is open, it means that the hazardous chemicals transport vehicles are passing through normally, and the abnormal reporting value is recorded. ; when > When the tunnel is abnormal, it means that the current hazardous chemicals transport vehicle is passing abnormally, and the abnormal reporting value is recorded. ; Statistics of total abnormal report value ,when >4:00, transmit abnormal information via SMS to the mobile phone of the current emergency person in charge of hazardous chemicals transportation.

[0025] It should be noted that the predicted travel distance is The length of the tunnel , it can be determined whether the current hazardous chemicals transport vehicles have possible dangerous behaviors during tunnel driving. By analyzing the historical data of past tunnel passages, counting the common deviations between actual and predicted travel distances, and setting reasonable thresholds .

[0026] In the embodiments provided by the present invention, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation; the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of this embodiment.

[0027] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A hazardous chemicals transportation tracking system, characterized by: It includes information management module, vehicle positioning module, data acquisition module, tunnel analysis module and vehicle path simulation module; The information management module collects information related to hazardous chemical vehicles, including driver information and transport vehicle information, and establishes a storage database to create and store files for drivers and vehicles, and establishes an emergency contact file based on each hazardous chemical transportation project, which includes the name and mobile phone number of the emergency contact; The vehicle positioning module includes a GPS positioning system for locating a hazardous chemical transport vehicle in motion and tracking the geographic location of the transport vehicle in real time; The data acquisition module collects the driving data of hazardous chemicals transport vehicles, including driving speed and driving route, and collects tunnel data in the current driving route of hazardous chemicals transport vehicles, including tunnel length and real-time vehicle information at tunnel entrances and exits, and transmits the data to the tunnel analysis module; The tunnel analysis module analyzes the tunnel data on the route of the hazardous chemicals transport vehicle by receiving the transmission data from the data acquisition module, evaluates the tunnel vehicle condition in the current period based on the real-time vehicle information at the tunnel entrance and exit, and transmits the evaluation data to the vehicle path simulation module; The vehicle path simulation module simulates and tracks the tunnel path of the hazardous chemicals transport vehicle based on the tunnel analysis data transmitted by the tunnel analysis module and the driving data of the hazardous chemicals transport vehicle collected by the data acquisition module, and predicts the position of the hazardous chemicals transport vehicle in the tunnel.

2. A hazardous chemicals transportation tracking system according to claim 1, characterized in that: The tunnel analysis module analyzes the tunnel data on the driving route of the hazardous chemicals transport vehicle by receiving the transmission data from the data acquisition module, evaluates the tunnel vehicle condition in the current period based on the real-time vehicle information at the tunnel entrance and exit, and transmits the evaluation data to the vehicle path simulation module, including the following steps: Through the data acquisition module, tunnel data on the route of hazardous chemicals transport vehicles is received, including the length of the tunnel, the instantaneous speed of the real-time vehicles entering and exiting the tunnel, and the time it takes for different vehicles to pass through the tunnel. The average speed of the vehicles in the current tunnel is calculated for each of the vehicles traveling. Based on the average speed of the selected vehicles, the current tunnel traffic condition is evaluated and analyzed, and the current tunnel congestion and internal traffic condition are analyzed.

3. A hazardous chemicals transportation tracking system according to claim 2, characterized in that: The data acquisition module receives tunnel data on the route of hazardous chemicals transport vehicles, including the length of the tunnel, the instantaneous speed of the real-time vehicles entering and exiting the tunnel, and the tunnel time of different vehicles. The average speed of the vehicles in the current tunnel is calculated for each of the vehicles traveling. The specific steps and algorithm formula are as follows: Based on the basic data collected by the data acquisition module, simple random non-repetitive sampling is used to select based on the speed range. The selected vehicles are recorded with the tunnel entrance speed. Tunnel exit speed , based on the current tunnel length The travel time of the selected vehicle , respectively calculate the average speed, the algorithm formula is: ； in, Representative selected The average speed of vehicles passing through the current tunnel; The data acquisition module collects the traffic flow at the entrance and exit of the current tunnel at the same time, and obtains the traffic flow at the entrance of the tunnel at the same time. The traffic volume at the tunnel exit at the same time , calculate the flow difference between the tunnel inlet and outlet at the same time, and the algorithm formula is: ； in, Represents the tunnel inlet and outlet flow difference at the current moment, based on the flow difference threshold The steps for determining the traffic volume in the tunnel at the current moment are as follows: when > When , it means that the number of inbound vehicles is much larger than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when < When , it means that the number of inbound vehicles is much smaller than the number of outbound vehicles at the same time, indicating that there is an abnormality in the tunnel at the current moment; when ≤ ≤ When , it means that the import and export vehicles are relatively balanced at the same time, which means that the tunnel is normal at the current moment.

4. A hazardous chemicals transportation tracking system according to claim 3, characterized in that: The method of evaluating and analyzing the current tunnel traffic condition based on the average speed of the selected vehicles, and analyzing the current tunnel congestion and internal traffic condition, specifically comprises the following steps: Collect the current tunnel's historical vehicle entrance speed and the corresponding historical average tunnel speed of vehicles, and divide the intervals based on the speed intervals. The steps are as follows: Divide the speed range into 60-65, 65-70, 70-75, 75-80, 80-85, and collect historical statistics Average speed of tunnel vehicles in different sections within a time period , , , , , based on the choice of vehicle Match the corresponding speed range, by comparing The average speed of vehicles in the current tunnel is determined by comparing it with the average speed of vehicles in the historical tunnels in the corresponding speed range: When The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnel in the corresponding speed range. ; Accumulated judgment value ,when > When , it means the current average speed of the tunnel is abnormal; when < When , it means the current average speed of the tunnel is normal; Based on time interval , continuously extract the traffic flow of the current tunnel entrance and exit at the same time for 7 times to obtain the flow difference , based on the flow difference threshold To determine the tunnel flow: when > or < When, it means that the tunnel traffic is abnormal at the current moment, record ; when ≤ ≤ When, it means that the import and export vehicles are relatively balanced at the same time, and the record , cumulative judgment value : when When it is >3.5, it means that the current tunnel traffic data is abnormal; when When it is less than 3.5, it means that the current tunnel traffic data is normal; When the current tunnel traffic flow data is normal and the current tunnel average speed is normal, it means that the current tunnel traffic condition is normal, that is, there is no congestion; When the current tunnel traffic flow data is abnormal and the current tunnel average speed is abnormal, it means that the current tunnel traffic condition is abnormal, that is, there is congestion.

5. A hazardous chemicals transportation tracking system according to claim 4, characterized in that: The tunnel analysis module is provided with an auxiliary determination system, that is, when the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal or when the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a secondary analysis is performed on the current tunnel. The specific steps are: When the current tunnel traffic flow data is normal and the current tunnel average speed is abnormal, or the current tunnel traffic flow data is abnormal and the current tunnel average speed is normal, a simple random non-repetitive sampling is used to select The average speed comparison is performed again based on the selected vehicle's import speed matching speed interval. The average speed of vehicles passing through the current tunnel is greater than or equal to the average speed of vehicles passing through the historical tunnel in the corresponding speed range, and the current vehicle is recorded. ; When The average speed of vehicles passing through the current tunnel is lower than the average speed of vehicles passing through the historical tunnel in the corresponding speed range. ; Accumulated judgment value , make a secondary judgment on the current vehicle condition: when > When , it means that the current tunnel traffic condition is abnormal, that is, there is congestion; when < , it means the current tunnel traffic condition is normal.

6. A hazardous chemicals transportation tracking system according to claim 1, characterized in that: The vehicle path simulation module simulates and tracks the tunnel path of the hazardous chemicals transport vehicle based on the tunnel analysis data transmitted by the tunnel analysis module and the driving data of the hazardous chemicals transport vehicle collected by the data acquisition module, and predicts the position of the hazardous chemicals transport vehicle in the tunnel. The specific steps are as follows: Based on the tunnel analysis module, the vehicle condition analysis results of the current tunnel are received, and based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, the corresponding speed range is matched, and the average speed of the hazardous chemicals transport vehicle is predicted; Based on the predicted average speed of hazardous chemicals vehicles, a tunnel driving path simulation prediction is conducted for current hazardous chemicals transport vehicles.

7. A hazardous chemicals transportation tracking system according to claim 6, characterized in that: The tunnel analysis module receives the vehicle condition analysis result of the current tunnel, matches the corresponding speed interval based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, and predicts the average speed of the hazardous chemicals transport vehicle. The specific steps are: Receive the vehicle condition analysis results of the current tunnel. When the vehicle condition of the current tunnel is normal, match the speed range based on the tunnel entrance speed of the current hazardous chemicals transport vehicle. The speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85. Based on historical Average speed of tunnel vehicles in different sections within a time period , , , , , the average speed of tunnel vehicles in the corresponding historical time period is used as the predicted average speed of current hazardous chemicals transport vehicles; When the current tunnel vehicle condition is abnormal, the speed range is matched based on the tunnel entrance speed of the current hazardous chemicals transport vehicle, where the speed ranges include 60-65, 65-70, 70-75, 75-80, and 80-85; Based on the average speed of the selected vehicle in the speed range, the total average speed in the relevant speed range in the current period is calculated. The algorithm formula is: ； in, That is, the comprehensive average speed of the vehicle selected for the current speed range, is the sum of the average speeds of all selected vehicles in the current speed range, is the total number of vehicles in the current speed range. As the predicted average speed of current hazardous chemicals transport vehicles.

8. A hazardous chemicals transportation tracking system according to claim 7, characterized in that: The specific steps of simulating and predicting the tunnel driving path of the current hazardous chemicals transport vehicle based on the predicted average speed of the hazardous chemicals vehicle are as follows: Based on the current tunnel length The travel time of hazardous chemicals transport vehicles in the tunnel , combined with the current predicted average speed of hazardous chemicals transport vehicles , calculate the current position of the hazardous chemicals transport vehicle in the tunnel in real time, and the algorithm formula is: ； in, for The driving distance of hazardous chemicals transport vehicles at time is based on the driving time of hazardous chemicals transport vehicles in the tunnel , continuously updating the travel distance of hazardous chemicals transport vehicles to simulate the location of hazardous chemicals transport vehicles; At the same time, according to the actual tunnel travel time of hazardous chemicals transport vehicles , based on the predicted average speed Calculate predicted travel distance ,in , calculate the distance difference ; Based on abnormal driving distance threshold Evaluation of vehicle tunnel passage: when ≤ When the tunnel is open, it means that the current hazardous chemicals transport vehicles are passing through the tunnel normally, and the abnormal reporting value is recorded. ; when > When the tunnel is abnormal, it means that the current hazardous chemicals transport vehicle is passing abnormally, and the abnormal reporting value is recorded. ; Statistics of total abnormal report value ,when >4:00, transmit abnormal information via SMS to the mobile phone of the current emergency person in charge of hazardous chemicals transportation.

9. A hazardous chemicals transportation tracking system according to claim 1, characterized in that: The data acquisition module collects the driving speed data of hazardous chemicals transport vehicles through the GPS satellite system, and obtains the driving route of the current hazardous chemicals transport vehicles based on the navigation information of the hazardous chemicals transport vehicles, and marks the tunnels on the driving route to obtain the length data of the tunnels; Through the GPS data of other vehicles on the route, the real-time data of vehicles passing through tunnels on the current hazardous chemicals transport route is obtained, including the instantaneous speed of vehicles entering and exiting the tunnel and the time it takes for different vehicles to pass through the tunnel, and the data is transmitted to the tunnel analysis module.

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