Application case of GPS vehicle distribution monitoring and management system in Shanghai Petrochemical
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Project Overview
1. Introduction to the implementation of GPS Phase I project
The Shanghai Petrochemical GPS vehicle supervision system project was officially launched in November 2004. In November 2005, the installation of on-board equipment for 249 tank trucks and liquefied gas transport vehicles has been completed. During the construction of the project, Shanghai Petrochemical closely combined the needs of oil product distribution management and organically integrated GPS technology with the integration of existing business management information systems. In addition to the general vehicle monitoring function of the general GPS system in the society, the system and the sales business system management system are linked to operate and automatically import and download the distribution scheduling information. The driver can use the on-board GPS terminal to receive the time, location, and variety of the fuel delivery. The delivery procedures can be completed with the driver’s fuel card for the instructions of each vehicle task, such as the number and quantity. The dispatcher can also issue emergency dispatch instructions to nearby vehicles and modify the dispatch plan through the system when there is a sudden dispatch task. This greatly improves Transportation efficiency.
Through the GPS system network management terminal, the vehicle management personnel of the transportation fleet can monitor the operation of the vehicle in real time through the Internet, and discover in time the speeding alarm, the illegal parking alarm, the cross-border alarm, the active alarm, the warehouse station arrival reminder, the status of heavy and light vehicles, etc. You can view the replay of the vehicle trajectory and the parking report to check the violation of the vehicle, which greatly improves the vehicle management department’s ability to supervise the vehicle.
The establishment of the system not only realizes the effective monitoring of the operation dynamics of hazardous chemical transportation vehicles, and meets the regulatory requirements of government management departments and branch companies, but also realizes the sales business management system and GPS vehicle monitoring without precedent in China. The effective connection of the system realizes good remote interaction between dispatchers and drivers. After the system was put into use, it changed the situation that it was difficult to monitor the transportation process of tank trucks and adjust emergency dispatching in the past, making the oil distribution business of Shanghai Petrochemical apply the ASPEN distribution optimization system and effectively integrate with the business system to achieve good results. The above has further improved the effectiveness and timeliness of vehicle scheduling, and improved and strengthened distribution management.
2. Background of GPS Phase II Project.
The safety status of goods transported by tanker trucks
The safety issues in the transportation of goods, the monitoring and management of tank trucks during transportation, are in a blank state for a long time due to technical inoperability. How to effectively ensure the safety of goods in transportation has always been a problem that has plagued us for a long time, especially This situation is particularly prominent when resources are tight. At present, our company uses traditional seals to supervise transportation vehicles, but the cost of using them is very high. Last year, the company spent more than 500,000 yuan in purchasing seals. At the same time, traditional seals are relatively easy to obtain, and strict and effective supervision cannot be implemented in the manufacturing, purchase, issuance, sealing, inspection, and unsealing of lead seals, and they cannot meet the high-standard anti-counterfeiting requirements. The waste management after the use of the lead seal also requires a large cost.
The introduction of electronic seals into GPS Phase I system
1. Introduction to electronic seal (E-SEAL).
The electronic lead seal uses advanced (RF-ID) automatic identification technology to number each oil inlet and outlet, collect its on and off status signals in real time through a data collector, and locate the GPRS communication module on the vehicle device through satellites. Wireless transmission to the monitoring center. While displaying the driving position of the vehicle in real time, it also records the number of opening times and opening time of the fuel port in real time. Oil port status, and alarm for some illegal operations. At the same time, the system has good security. The collected data and information cannot be artificially destroyed or rewritten, and the data will not be lost after power failure. It can record the number of man-made power failures and alarm when data escapes.
Electronic lead seals can fundamentally prevent human error operations (including cheating), ensure the quality of oil products, prevent loss, and improve efficiency, so that the tank truck can be The electronic operation of the operation links standardizes the management of the oil depot, reduces the hidden danger of accidents, and achieves the effect that cannot be achieved by the traditional seal.
2. The main features of the system
GIS system
The maps of various regions roam automatically, and the screen can display multiple management windows at the same time, and different moving targets can be monitored separately. The management dispatching center can carry out the personalized identification of special locations on the map by itself. Managers can set the effective range of activities for each calibrated oil depot location. When the valve is opened at the designated unloading point, the system only records and does not alarm; when it exceeds the designated range and opens the valve, it is considered to be opened illegally. Automatically alarm, and automatically locate the position of illegal valve opening. The system can implement hierarchical command and management according to the management level. The data interface is reserved for the secondary development and application of the customer based on the positioning information.
Dispatch monitoring management system
1. Real-time monitoring function:
At any time, you can query the geographic location (longitude, latitude, speed, direction, etc.) of the tanker car by issuing instructions and visually display it on the electronic map.
The monitoring center can designate a vehicle to track and display the driving trajectory, direction, speed and other parameters. Observe the driving trajectory and driving speed of the operating vehicle on the electronic map in real time.
Use different colors or icons for empty and heavy vehicles
2. WEB SMS interactive function:
Users can use the WEB tank car monitoring platform to directly send scheduling information to the display on the tank car on the Internet. At the same time, the driver can also send request commands to the monitoring center through the display screen, and the user can directly browse the monitoring platform on the monitoring platform. .
3. Real-time dynamic scheduling function:
Dispatchers can send out text dispatch instructions through the dispatch center at any time and get confirmation information.
4. Data storage and analysis functions
Save the operating route, operating area, and place of the tanker truck, and record the information in the database for future query and analysis.
5. Practical map display function
When the tank car is monitored, inquired and historically replayed in real time, the map can automatically adjust the monitored tank car to be located in the center of the map (the picture moves with the car), and the position of the tank car can be through the trajectory, spatial position, and text information. The way is displayed. The map can automatically adjust the level of the layer, and the monitored tank car is completely in the best visual field of view.
6. Security Monitoring
The system can set the maximum speed of the vehicle. When the vehicle is speeding, the system will automatically alarm, which is convenient for the management and dispatch center to correct the illegal operation and ensure the safe operation of the vehicle.The system can set the driving range of the vehicle. When the vehicle crosses the boundary, the system automatically alarms, so that even if the monitoring center corrects the illegal operation, it can be documented in the management to improve efficiency and reduce operating costs
7. Alarm handling
When the vehicle encounters an emergency, you only need to press the alarm button, and the vehicle-mounted terminal will automatically send alarm data to the monitoring center, and the monitoring terminal will display the location of the vehicle and provide sound and light prompts. In addition, when you encounter a dangerous situation or a traffic accident or a vehicle breakdown during driving, you can call the monitoring center for help through the alarm button of the vehicle terminal. The monitoring center can also monitor and record the situation in the car.
In order to strengthen dispatch management, vehicles are generally required to use a fixed route or can only move in a specific area.Pre-set the driving route for the task vehicle in the system. When the task starts, the driving route and status of the vehicle are monitored and recorded. If the vehicle does not follow the preset driving route or drives out of the set area, the system will automatically alarm and the center can Take measures according to the actual situation
When the tank car is not in the oil depot or designated gas station, the system will send out an alarm signal. After the monitoring center receives the signal, an alarm window will pop up automatically and the alarm window will flash. At this time, the alarm will sound and all The information of the car is displayed, and the monitoring center can track and control the tank car as needed;
8. Historical track record query
The trajectory information of the dangerous goods transport vehicle during the driving process will be recorded and saved for easy query afterwards. The user can select a time period in the past, query the historical data of the specified vehicle in the time period, and replay the historical trajectory, which is a powerful assistant for accident analysis.
9. Vehicle unified information management
The system can carry out centralized and unified information management of vehicles. The management content covers vehicle license plate number, vehicle platform number, model, color, engine number, chassis number, purpose, etc. The system will collect and input all the information of the vehicle, and then provide users with the functions of modification, deletion and query.
10. Data release and sharing
The system adopts the popular B/S architecture. Different users can use IE to log in to the system through the Internet, use system functions, issue commands, and query related data according to user permissions. It is not affected by the location of the computer, while ensuring the security of the system’s data.
(1). GPS logistics safety process monitoring
The electronic seal (hereinafter referred to as “E-Seal”) installed on the oil tanker numbers each oil inlet and outlet, collects its on and off status signals in real time through the data collector, and locates the on-board device through satellites GPRS communication module, wireless transmission to the monitoring center.
The data processing middleware of the GPS Phase II system processes the E-Seal data, and combines the processed data with the vehicle’s satellite positioning data, speed, and direction information, packaged and sent to the online connection, and has the authority to monitor the vehicle Internet Web client.
In the map display, the display corresponding to the E-SEAL status of the tanker is added to provide a more obvious distinction between the situation of the E-SEAL cause alarm and other alarm situations such as vehicle speeding and overrun in GPS phase I. You can also view more detailed E-SEAL device current status and related historical data on the map interface. Real-time supervisors using the Internet Web client can learn about various security alarm data by setting various condition options in the software security alarm, and notify them in their own customized way. Through the combination of GPS system and E-SEAL system, vehicle safety and cargo safety are guaranteed.
(2). ASPEN secondary logistics task execution management
Due to the limitations of GPS technical indicators and operating environment requirements, it is impossible to scientifically and effectively manage the execution of ASPEN tasks through a single GPS independent system.
The E-SEAL system has very high safety and reliability. Combining it with the existing GPS system provides a scientific basis and means for us to supervise the implementation of secondary logistics tasks. Similarly, through the software post-processing analysis of the operating system status data in the GPS Phase II system, it can provide the ASPEN system with input data after eliminating human factors, and improve the secondary logistics information platform with ASPEN and GPS Phase I systems as the core. Reliability and accuracy. In turn, it helps us to better complete our daily distribution tasks and better deal with the situation that may arise when resources are tight.
(3) The three systems are combined to provide single-vehicle task execution reports and fleet task execution reports
Since the GPS device cannot determine the starting point and ending point of a delivery task performed by the tank truck, it cannot calculate an accurate and reliable freight report. After the E-SEAL system is combined with the GPS I and the ASPEN system. We can get the vehicle status and task status through the data provided by ASPEN, and get the start location, time and end location and time of the task through the E-SEAL system, combined with the operating route provided by the GPS I system. After a distribution task is completed, the accurate task freight is automatically calculated, as well as reports and vehicle running trajectories for the carrier fleet to check.
(4) E-SEAL equipment management module
Due to the requirements of E-SEAL technology, a single vehicle is required for single use. At the same time, due to the large number of tank trucks, especially the number of fleets, it is necessary to implement the installation and daily maintenance of E-SEAL equipment through information technology. And other management. Ensure that the management system meets the needs of using E-SEAL.
(5) E-SEAL IC card management and encryption
A single set of E-SEAL needs to use 5 IC cards that store specific encrypted data. In order to meet the security requirements of E-SEAL, it is necessary to generate 5 encrypted IC key cards while completing the identification of the E-SEAL device. , The current software requires the generation of 1024-bit RSA (public/private) keys.
(6) Technical performance and indicators of hardware products
Satellite positioning system
Positioning time: 12-channel receiver, if you are near the location of the last positioning, the positioning time during cold start is generally 3 to 5 minutes, and 15 to 30 seconds during hot start. For 2-channel receivers, most of the time it exceeds during cold start. 15 minutes, 2 to 5 minutes during hot start.
Positioning accuracy: The horizontal position positioning accuracy of the GPS receiver is about 5m～10m
Electronic seal system
Shell: The probe part is made of 304# stainless steel, and the host part is made of aluminum alloy
The maximum distance between the host and the probe: ≤10 meters
Power supply mode: car battery power supply (12/24V)
Battery type: lead-acid battery for vehicle
Maximum open circuit voltage of battery: 24V Transmission rate: 57600 baud rate
Explosion-proof form: host part: general and factory-used intrinsically safe type
Probe part: intrinsically safe for factory use
Explosion-proof mark: host part:[Exia]ⅡBT5 Probe part: ExiaⅡBT5
3. Control results:
The statistical results of daily vehicle loading (i.e. the number of registered vehicles, the number of online vehicles, and the number of dropped vehicles)
Vehicles that are not online are warned and registered for verification and processing, and real-time inquiries.
Illegal turn on the alarm prompt, and register it for verification and processing, and real-time query.
Illegal ID card ID setting and interception alarm.
Query the transportation data of all vehicles in the province. Real-time query.
4. Control method:
1. When there is no corresponding file, the software will prompt that there is no such file.
2. Select an appropriate location to add a button on the GPS control center interface. When the interface cannot be arranged, a “seal management” button can be added.
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