The application of RFID products of Supai in the automatic identification system of urban vehicles
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At present, the society is increasingly inclined to adopt the automatic vehicle identification (AVI) system based on active RFID technology. The AVI system can be installed at the city entrance and exit to form an AVI fixed base station or installed on a police car to form an AVI system mobile station. The mobile AVI system is one of the practical and effective means to solve the above problems. It can be parked at the entrance of the designated venue, or on the side of the road, or at the checkpoint, or toll station according to the needs; it can accurately and reliably collect data from it in real time. The data information of the vehicles passing by (or parked) and equipped with active proximity cards are identified and processed using remote radio frequency identification (RFID) technology, and the information is passed through the communication network (GSM/GPRS) /CDMA) transfer to the vehicle management center computer, compare with the information about the vehicle stored in its database, determine whether the vehicle is illegal or stolen, and return the comparison judgment results and instructions to the AVI system in real time to determine Deal with the car. The comparison judgment result and vehicle-related information can be printed out. For illegal vehicles that have been blacklisted, they can be reported to the police and intercepted on the spot, or the checkpoint in front of the dealership can be notified to intercept them through communication equipment.
Including vehicle radio frequency tags, fixed base station AVI system and mobile base station AVI system.
1. Car radio frequency tags
There are vehicle information, vehicle status, and vehicle owner information on the on-board radio frequency tag. This radio frequency tag has a unique identification number (ID Code) in the world, and the identification number and its information are stored in the information exchange network of the public security department. Generally, it is in a static state of alert until the car is stolen or the owner requests traffic. Information inquiry is started. This identification number can help the police identify and track stolen vehicles. Car radio frequency tags should be installed firmly, reliably, and as concealed as possible without affecting normal operation. A special installation method can be used, so that once the label is removed, the alarm service can be automatically activated to prevent the label from being misappropriated.
2. Fixed base station AVI system
Using active microwave tags, the reading distance can reach 2 to 80 meters. The fixed base station AVI system is generally used for customs, checkpoints and toll stations on major traffic lanes to inspect, identify and record passing vehicles. Equipment (such as readers, smart controllers, data transmission units, power supplies, etc.) are installed beside the lane In the computer room.
When a vehicle carrying an RFID tag passes through the lane, the system reads the ID identification number in the tag, superimposes the passing time and lane number, and stores it in the memory of the intelligent controller. The data transmission unit transmits the vehicle data information collected by the system to the management center (or computing center) of the public security and transportation departments through the communication network (such as DDN), and at the same time, the control command of the management center is sent to the AVI system to determine the automatic control of the vehicle. Release or intercept.
3. Mobile base station AVI system
In some applications, such as public security criminal investigation, road inspection, and important meeting security, it is necessary to be equipped with a mobile AVI system, which can be activated and parked at the designated roadside (or entrance of the venue) at any time to conduct surprise inspections and identification of passing vehicles. Its equipment configuration is similar to that of the AVI system fixed base station, but it is more simplified. The mobile AVI system can be installed on a modified police car, and use a mobile phone to send short messages (or other methods) through the mobile communication network (GSM) to maintain communication with the command center or exchange data. If you need to report the location of the mobile AVI system, the car can also be equipped with a GPS receiver to send a short message via GSM to transmit the location of the mobile station to the command center.
4. Simple mobile inspection equipment
In some applications, simple mobile inspection equipment (PDA handheld reader) can also be used. Inspectors can use PDA readers to check passing vehicles in certain narrow areas. The PDA reader has downloaded the stolen vehicle information (blacklist) in advance, and once the same information is read, it will immediately call the police.
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