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System Overview
The current vehicle management is usually manual management and IC card close management. However, the huge number and frequent entry and exit result in extremely low registration efficiency, and the accuracy of data is also very limited. The main defects are:
· For manual management, the labor intensity is high, the efficiency is low, and the error rate is high
· For the short-distance management method of IC card, the vehicle must stop and pick up the card, which is slow and cumbersome
In response to the above problems, Beijing Chenda has launched the latest generation of automatic vehicle entry and exit system. It uses UHF RFID radio frequency identification products as the core to replace traditional management methods. Vehicles do not need to stop when entering and exiting, and all registrations are automatically implemented by the system remotely. , No human intervention is required, and errors and cheating are eliminated.
The vehicle management system based on RFID technology can provide independent and uninterrupted system equipment for the passage of vehicles, and realize convenient management of vehicles. It has the characteristics of high reliability, high recognition rate, and easy installation and maintenance. It does not require manual intervention and can be completed automatically. A series of field data collection, comparison and switch gate control work, etc., save manpower, improve work efficiency, and reduce human intervention.
System composition
The system is mainly composed of electronic license plates, readers, antennas, etc.:
[Electronic License Plate]refers to electronic tags. This article uses the term electronic license plate to appear. The legal number of the identified vehicle registered in the management department is recorded in the electronic tag. Through the system software, each tag can be authorized to identify whether the vehicle has the right to pass through the door.
[Smart RFID Reader]Installed at gates and entrances and vehicles passing through traffic intersections that need to be monitored. It is responsible for driving the antenna to transmit signals or receive the signals returned by the antenna, analyze and process the electronic license plate data contained therein, and transmit these data to the PC at the same time. Various communication methods can be used to connect with the PC.
[RF antenna]It is used to transmit wireless signals to activate the electronic license plate, and at the same time receive the wireless radio frequency signals fed back by the electronic license plate, and transmit these signals to the reader.
system design
The RFID vehicle management system involves card issuance, data collection, record query and other links. This section focuses on the data collection part that is closely related to vehicle traffic.
Card issuance
The data information of the electronic license plate is read through the card issuing device and uploaded to the PC, and the electronic license plate is authorized through the software system. After completing the information input, fix the electronic license plate on the vehicle body or paste it on the window glass.
data collection
When the vehicle passes, the data collection system automatically collects the data in the electronic license plate for registration and judgment.
• The system is in an automatic monitoring and collection state;
• When a legal vehicle enters and exits, the system passes the judgment and opens the automatic barriers so that the vehicles can pass freely. At the same time, the system will record the time of entry and exit of the vehicle. Only when the label is damaged, the system will automatically prompt and the staff can change the card;
• When illegal vehicles enter and exit, the system will automatically alarm and the automatic barrier will not be opened.
Record query
According to time, vehicle information and other multi-directional combination conditions, query vehicle traffic data to meet management needs.
System functions
Anti-counterfeiting
Every RFID tag has a unique UID number in the world, and it is unmodifiable, so RFID technology has unparalleled anti-counterfeiting performance.
In the RFID tag, in addition to the UID number, there is also a part of the DATA area, which can write some data information. The vehicle number plate and license information can be encrypted and written into this area, which also has a high anti-counterfeiting feature.
Through the control of the vehicle barrier system by the reader, a vehicle with a false certificate cannot enter or leave a specific area at all.
Anti-borrowing
Because the vehicle license plate information can be encrypted and written into the label, and the image data in the system database can be called, it can be distinguished whether a certain vehicle has the right to use the vehicle license, which can prevent the phenomenon of vehicle license borrowing. The car is unified.
Anti-theft
If a vehicle license is accidentally lost, we can not only use the above methods to determine whether a vehicle has the right to use the vehicle license from the unity of the license plate number and the vehicle license. It is also possible to invalidate the vehicle license by reporting the loss of the owner. Once a vehicle tries to enter a certain area with the vehicle license report, it can be recognized on the spot.
Vehicle statistics
Since vehicles will be automatically recognized by the reader when entering and exiting the gate, how many vehicles and which vehicles there are in a certain compound can be counted.
Audit management
The mobile inspection vehicle is equipped with a long-distance radio frequency identification system, and the on-board system has a database of legal vehicle information and blacklist (stolen vehicle card number, loss report, invalid card number information), patrols illegal vehicles on the road, and remotely identifies the card number of the vehicle. Bring up the car’s information and image and compare it with the on-site camera image to determine its legitimacy: If there is no card or a blacklisted card or a stolen card, the system will automatically call the police; if the card is legal, it’s the same as the archived vehicle image In case of discrepancy, the inspector can intercept it.
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