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1. System background
In response to the needs of high-end communities, enterprises, and institutions for intelligent parking lots, our company has launched an intelligent parking lot management system that integrates computer technology, short-range microwave communication technology, image digital processing technology, and automatic control technology to achieve automatic vehicle identification and information Management, improve the efficiency and safety of vehicles, and count vehicle access data to facilitate management personnel to dispatch, so as to reduce the labor intensity of management personnel and effectively prevent toll loopholes.
2. System composition
Electronic license plate (store corresponding vehicle information), driver card (optional, store corresponding driver information, mainly for the purpose of strengthening supervision), access control antenna, remote reader, access controller, access control computer, software including management Software and card writing software.
3. System workflow
When the vehicle enters/exits the access control antenna communication area, the antenna uses microwave communication to exchange two-way data with the electronic identification card, read the relevant information of the vehicle from the electronic car card, and read the relevant information of the driver from the driver card , Automatically recognize the electronic vehicle card and driver card and judge whether the vehicle card is valid and the legitimacy of the driver card, the lane control computer displays the license plate number and driver information corresponding to the electronic vehicle card and driver card one-to-one; lane control computer The relevant information of passing time, vehicle and driver is automatically stored in the database, and the lane control computer judges as follows based on the data read:
1) Normal card: When the license plate number and driver card read are legal, the movable door opens automatically (4 meters), and the movable door closes automatically after the vehicle leaves the coil 1.
2) Unauthorized card: When the read card or driver card is unauthorized, the system will alarm and capture and save the picture, and the movable gate will not open;
3) No truck: When the vehicle triggers coil 2, when the system does not read the vehicle card and driver card, the system determines that there is no truck, the system alarms and captures and saves the picture, and the movable door does not open;
4) Illegal card: a card that is not from the company, although the data is read by the card reader, but not from the company, the system alarms and captures and saves the picture, and the movable door does not open.
Four, system characteristics
1) Long distance: easy to achieve within 10 meters of reading distance. Due to the actual requirements of vehicle access control, the card reading distance should not be too long. This solution does not need to be manually approached to swipe the card or to pass in a designated area to be recognized. Fully automatic recognition is realized, which can avoid problems such as the driver having to move the window close to the reader to swipe the card in bad weather. During peak hours, it can effectively alleviate the jam problems caused by too many vehicles entering and leaving the warehouse and queuing cards.
2) Stable operation: The active card has a stable reading distance and is not easily affected by the surrounding environment. Moreover, the active card can effectively break through the shielding effect of the automobile’s explosion-proof metal mesh, and smoothly exchange data with the reader.
3) Supports high-speed mobile reading, and the moving speed of the identification card can reach 200 km/h.
4) High reliability. It can operate normally within the ambient temperature of -40℃-85℃, especially in the low temperature in the north and high temperature in the south, and it has more advantages, which can effectively resist dust and pollutants in the air.
5) Save manpower, improve work efficiency and economic benefits.
6) Automated design, fast vehicle entry and exit, improve grade and efficiency, and provide high-quality, safe and automatic parking services.
7) It can accurately distinguish between free vehicles and foreign vehicles.
8) High anti-interference: There are no special requirements for various interference sources on site, and the installation is convenient and simple.
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