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RFID radio frequency identification technology is a wireless, non-contact automatic identification technology. The communication distance can be from a few centimeters to tens of meters, and it is almost unaffected by the weather environment. RFID electronic tags can input hundreds of bytes of digital information, which has extremely high confidentiality and is recognized in contemporary information technology. One of the five frontier technologies. By burning the truck card into the RFID electronic tag, when the truck truck enters various logistics nodes such as docks, yards, warehouses, etc., it can be read through the RFID antenna installed above the road, which is completely free from manual intervention and improves The speed and accuracy of vehicle traffic.
【System Principle】
The electronic license plate is written into the basic information of the vehicle in advance through the card issuance management system, such as the vehicle ID, license plate number, and vehicle weight. And install the RFID electronic license plate on all vehicles entering and exiting the terminal gate, at this time the vehicle has a unique ID card. Install recognition systems in all gates, roads and other places where electronic license plates need to be recognized. The recognition system runs around the clock. When a vehicle with an electronic license plate enters the recognition area, the recognition antenna can capture the relevant information in the electronic license plate and send it to the background in real time to help the background for further processing. If it is a vehicle entry system that does not have an electronic license plate installed, the vehicle information will not be displayed and an illegal vehicle intrusion may be prompted. The system can cooperate with video surveillance to record the in and out operations of vehicles in real time.
The system consists of the following parts:
1. RFID electronic license plate (also called RFID electronic tag)
2. RFID electronic license plate issuance management system
3. RFID electronic license plate recognition system
4. Identify the external interface of the system
【Overall structure of the system】
The RFID electronic tag in this system is the main data carrier, which will follow the installation vehicle to different logistics locations, and the unified reading system will receive unified data content. The system can access multiple card issuing sections and identification terminals, and can work in both offline and online modes. The overall structure of the recognition system is shown in Figure 1.
【System functions】
By connecting the recognition system with the on-site computer, it can provide the background system with real-time information of vehicles, count the number of vehicles at the crossing, and generate related reports. This system has the following technical advantages:
1. The system complies with ISO18000-6B standard and is upward compatible with 6C standard;
2. Work around the clock to meet the needs of industrial environments such as docks;
3. The electronic license plate has an anti-dismantling function, and it will be destroyed as soon as it is dismantled;
4. The data in the electronic license plate is encrypted to prevent data duplication;
5. The system recognition rate under correct installation>99%;
6. Recognition distance>7m;
7. Recognition time <1s;
8. Correct recognition when the vehicle speed is less than 30km/h;
9. Rich data query and management functions; and support a variety of data communication functions to facilitate third-party integration;
【Application Effect】
Through the implementation of the electronic license plate recognition system at several terminal gates, the vehicles entering and leaving the terminal are effectively managed, and the speed of vehicles entering and leaving the port has increased significantly, and the phenomenon of vehicle over-licensing is fundamentally eliminated, and the transportation enterprises and terminals are protected. Legitimate interest. As long as the identification system is installed in other yards or logistics companies, vehicle management can be easily realized, reducing the input cost of third parties.
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