Status of vehicle monitoring in domestic dangerous goods transportation industry
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With the rapid growth of the national economy, important industrial products and dangerous goods (oil, natural gas and other dangerous goods) necessary for the operation of the national economy and urban operation are increasingly used in production and life. And related transportation is an important link in the process of dangerous goods circulation. It is highly mobile, difficult to manage, and has a large risk when an accident occurs. Frequently, dangerous chemicals transportation accidents indicate the technicalization of hazardous chemicals transportation. There are still major loopholes and deficiencies in regulation. For example, the Huai'an chlorine gas leakage incident at the end of March 2005 caused more than 20 deaths and injured more than 300 people. The news that the domestic media frequently broadcasted on the highways and dangerous goods transport vehicles on the national roads leaked dangerous goods in car accidents, all of which gave The special transportation industry has sounded the alarm. How to dynamically manage special transportation, especially dangerous goods transport vehicles? It has always been a problem that is highly valued and urgently needed to be solved by local safety production authorities and dangerous goods transportation enterprises.
How to avoid transportation safety issues
In recent years, with the popularization of vehicle monitoring application systems, all large and medium-sized dangerous goods transportation enterprises have adopted “vehicle embedded monitoring + vehicle driving recorder†to strengthen the whole process monitoring of dangerous goods transportation vehicles, which can solve the problem of dispatching vehicles from missions. A series of safety management, such as safe transportation monitoring to vehicle and driver safety supervision and management, combined with GIS/GPS global satellite system, can effectively monitor the transportation process, minimize the safety hazards of dangerous goods transportation, and improve The operational efficiency of the enterprise solved many problems of the safe transportation and transportation of dangerous goods in one fell swoop.
In response to the current situation of domestic dangerous goods transportation industry, Tianjin Tiandi Weiye Technology Co., Ltd. has developed an in-vehicle embedded monitoring system, which integrates in-vehicle digital video processing, vehicle travel recording system, GPRS/CDMA mobile communication network system and GIS/GPS global satellite positioning technology. It can effectively monitor, emergency rescue and provide various information services for mobile and high-volume mobile targets across different regions.
The vehicle video surveillance system consists of three parts: the vehicle monitoring and video recording system, the wireless data transmission system (including GPRS/CDMA audio and video transmission and GPS global satellite positioning), and the central control management system. The information transmission relies on the GIS/GPS system. As long as the satellite signal is covered, it can effectively track, monitor and manage all vehicle targets.
Characteristics in practical applications
1. Real-time monitoring of dangerous goods transportation process, the vehicle embedded monitoring system can realize real-time monitoring of multiple information, and the vehicle driving record terminal continuously reports the driving state and real-time position of the vehicle according to preset time intervals, and the system automatically processes the information and Storage, real-time understanding of the driving state and operating environment of dangerous goods vehicles, timely detection of environmental or human problems, including random parking, unrelated rides.
2. Inquiries on transportation process information: Information on the production and transportation of dangerous goods and highly toxic chemicals can be inquired at any time. The laws and regulations concerning the management of highly toxic chemicals and the list of highly toxic chemicals are listed. You can check the name of the consignment unit, the name of the transport unit and the transportation route, the relevant vehicles and transportation related personnel, the name and quantity of the transporting highly toxic chemicals and the validity period of the relevant road transport pass.
3. Emergency linkage of emergency events: including traffic control at the accident site, evacuation of people around the accident site, emergency rescue of the accident, etc. The relevant information can be sent to the monitoring and command center in real time to facilitate timely handling of the accident.
4. Information processing after the end of transportation: After the vehicle arrives at the transportation destination, it can download and query the vehicle driving recorder and video file data through the wired/wireless network. The stored image and data information can be printed and played back to facilitate inspection of the vehicle trajectory and system operation log.
5. Transportation positioning monitoring: Through the GIS/GPS geographic information/satellite positioning system, the positioning signal can be transmitted to the vehicle monitoring and dispatching center. The monitoring and dispatching center converts the position information into the position information through the differential technology, and then displays the position signal in the map language through the GIS. Finally, the function of the vehicle positioning navigation and the service rescue track record can be realized through the service center.
6, the realization of the alarm function: the car embedded host has an alarm input interface, can be connected to any kind of conventional alarm equipment. When an alarm occurs, the alarm information is transmitted to the monitoring center. The icon corresponding to the vehicle will flash continuously on the GIS map of the monitoring center. The monitoring personnel click the icon corresponding to the vehicle with the mouse, and the information of the vehicle (such as The license plate number, driving route, etc. and driver information (such as name, age, driving age, etc.) will be automatically displayed; the video signal corresponding to the vehicle will be transmitted to the monitoring center via GPRS or CDMA, and the monitoring personnel can immediately carry out the vehicle. Remote monitoring. Combined with GPS and electronic maps, the police can immediately understand the location of the vehicle and quickly get out of the police.
Composition of transport vehicle monitoring system
The system consists of three major components: the vehicle monitoring video system, the data transmission system (CDMA/GPRS/GPS), and the central control management system (as shown).
1. Vehicle monitoring system
The vehicle monitoring system is installed on dangerous goods transport vehicles. The main functions are vehicle operation monitoring, video recording and wireless data transmission. This program installs 2 to 4 far-infrared color (or black and white) pinhole cameras on dangerous goods transport vehicles, and install them in the cab and the rear of the car, even if there is no light on the night, it can ensure that the scene is clearly seen.
Because the dangerous goods transport vehicle is in a moving state, and the temperature and humidity vary greatly, the dust is much, and the working environment is bad, the requirements for the digital video recorder are higher. The vehicle embedded hard disk recording adopts the TC-2800AN series car embedded host produced by Tianjin Tiandi Weiye Co., Ltd. The vehicle host adopts the embedded RTOS operating system, which has the characteristics of stable system and powerful expansion. Chassis professional anti-shock structure design, multiple protection hard disk; speed, driving route, driving status and other real-time image synchronization recording function; overspeed alarm function, can record speed, steering, brake parking time and other related driving information. The video data is stored in H.264 compression mode, which has many features such as clear image, small footprint, and small network transmission bandwidth.
In addition, there are many electric vehicles in the car, the voltage change range is relatively large, and the electromagnetic interference is relatively strong. This car embedded host has a power supply with a wide input voltage range. The input voltage is in the range of DC7V-30V, the output voltage can be kept unchanged, and the monitor and the camera are powered by this power supply, so that the host image can be kept clear and stable during the standby state and driving, so that the monitoring can be improved. Both the camera and the camera have a consistently long life.
2, data transmission system
In addition to the vehicle monitoring and video recording, together with the wireless digital transmission module, the system can also transmit the audio and video related driving information on the vehicle to the monitoring center through GPRS or CDMA module in real time to realize remote audio and video monitoring of dangerous goods transportation vehicles.
3. Central monitoring and management system
The central monitoring management system mainly includes a vehicle monitoring management server. Its main functions are:
Receiving storage: The server receives and stores the audio and video images transmitted by the wireless digital transmitter on the dangerous goods transport vehicle and the related information on the travel recorder after the vehicle arrives.
Driver and vehicle management: The server can store and manage the information of dangerous goods transport vehicles and drivers by downloading data on the recorder, including driver name, age, driving record, license plate number, model, affiliated unit and other related information. In this way, when the dangerous goods transport vehicle is monitored in real time, the driver's personal information and driving record can be read at any time. Managers can easily add, modify, delete, and query these materials.
In addition, the administrator can back up the audio and video data recorded on the embedded host computer through a variety of ways, such as through a wireless bridge, a common network, etc., by centrally backing up and managing the monitoring data of several on-board digital video recorders. For this project, the networking function provided by the central server can centrally manage the servers distributed throughout the country. For the video data backed up to the server, it can be queried by specifying the time, license plate number and other conditions, or even carved into a DVD disc. Carry.
The system can also realize the precise positioning of electronic maps by using GIS/GPS modules, and gradually realize the seamless coverage of national electronic maps, providing real-time monitoring of inter-provincial transportation; while the central control room displays audio and video images of dangerous goods transport vehicles. The GPS positioning information of the location of the vehicle can also be displayed on the electronic map. When an emergency occurs in the vehicle, the relevant departments can quickly rush to the scene for processing.
Conclusion
By using the dangerous goods transport fleet in a certain place, the management has ensured the effective management of dangerous goods transport vehicles, and provides a strong query basis for avoiding various forms of accidents. This will become a dangerous product. Professional monitoring equipment used in transport vehicles.
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