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1. System overview
The intelligent high-definition license plate recognition system is a parking access management system specially designed for urban public toll parking lots and institutional parking lots. The system uses cameras to analyze the license plate numbers to form IDs to realize the authorization management of vehicle access and parking fees.
The high-definition license plate recognition technology solution is gradually replacing the original traditional card-taking parking lot entrance and exit equipment with its advanced and economical efficiency, realizing no-stop and no-card management, so as to effectively improve the efficiency of vehicle traffic at the entrance and exit of the underground parking lot. At the same time, the system can The smooth upgrade to the video vehicle guidance system to solve the problem of efficient use of parking resources is an important manifestation of the application of cutting-edge technology.
2. System equipment composition and working principle
2.1. System equipment composition
2.1.1 Entrance control part: integrated high-speed barriers, three-dimensional high-definition license plate recognition camera (with control function), three-dimensional high-definition license plate recognition camera slave, network highlight LED external display screen
2.1.2 Export control part: integrated high-speed barriers, stereo high-definition license plate recognition camera (with control function), stereo high-definition license plate recognition camera slave.
2.1.3 sentry box terminal: computer host, sentry box management software
2.2, system topology diagram
2.2.1, entrance topology diagram
2.2.2, export topology diagram
2.3. The working principle of the system
Install “HD License Plate Recognition Camera” at the entrance and exit, and the management computer will download the license plate information corresponding to the authorized channel to the “High Definition License Plate Recognition Camera”. When a vehicle enters or exits a parking lot, it needs to be triggered by the sense of ground or through the virtual coil video detection to trigger the high-definition license plate recognition camera to capture, recognize, and process the license plate information of the vehicle, and automatically compare the recognition result with the embedded license plate information of the camera or send it to the management The computer and the management computer use the recognition result to query the database, or the camera works offline and independently, which will not cause traffic jams to reach non-stop traffic.
The entire parking lot system implements centralized computer management in the management center, and uses high-definition license plate recognition cameras to capture images of vehicles entering the parking lot, automatically recognizes, guides the vehicles into the designated area of the parking lot, and exits the parking lot with the high-definition license plate recognition camera. Vehicles in the parking lot are identified. For fixed vehicles, the management center computer performs unified management of the entire parking lot, so that the management of the parking lot forms a convenient, safe and efficient control system.
3. System network structure diagram
The main components of the HD License Plate Recognition System are modular design, the configuration is very flexible, powerful, and complete. It can not only adapt to a small parking with one entry and one exit, but also a large system with multiple entries and multiple exits.
4. Introduction to the advantages of the license plate recognition system
4.1. Advantages of using high-definition license plate recognition:
Without manual intervention, the system works fully automatically. Multi-program work, even if the system fails due to natural disasters or uncertain factors, the system will operate as usual without affecting; that is: the system and the camera can be written into the black and white list at the same time, when the link fails, the camera can work independently, and the resulting records are saved in For the camera, when the system is restored, the data can be downloaded to the computer and saved for the record; when the camera fails, the temporary card issuing device of the system can still solve the traffic problem, and all the problems that may be encountered when entering it are solved. The whole system is fully intelligent, simple and convenient, and easy to maintain. High-definition monitoring data, seamless access to the monitoring center.
4.2. Advantage analysis of the license plate recognition solution (compared to traditional IC parking management)
4.2.1. The problem of one card with multiple cars: the problem of using one card to associate several cars entering the park and occupying parking spaces;
4.2.2. The problem of not carrying the card: the owner does not carry the parking card, and the security personnel lack the means to verify the identity of the vehicle, and do not know whether to release or not to release;
4.2.3. Traffic problems caused by card loss, card damage, and card out of power;
4.2.4 Passive cards cannot be used for traffic problems caused by some vehicles without microwave sunroof and fully filmed;
4.2.5. Entrance traffic jams when there is a problem with the entrance ticket box, the entrance ticket box may be empty, the card reader or ejection mechanism may be damaged, the card may be deformed and dirty, resulting in unsmooth exits, etc.; entrance card issuance efficiency is low, The problem of inefficient passage of vehicles queuing at the entrance.
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