One, application background
Car license plate automatic identification system (hereinafter referred to as the license plate recognition system) comprehensive application of pattern recognition and computer vision technology, to be able to drive by computer the registration number automatic identification, in JiZhen, monitoring, intelligent vehicle management, and many other fields have a wide range of application value.
Two, the function overview
(1) found that designated vehicles, real-time warning.
(2) statistical designated vehicle action rule.
(3) after looking for the whereabouts of designated vehicles.
(4) from networking data statistical analysis, active found fake license plate and suspicious target.
(5) control way brake, traffic lights, buzzer and other equipment, improve the reliability of the access management and efficiency.
(6) improve charging management system reliability and efficiency.
(7) traffic statistics, and improve the efficiency of traffic management.
Three, the technical implementation
Typical front plan:
(1) no sensor and sensing can mix.
(2) a host can support multichannel recognition.
(3) a host can support multiple control equipment and sensing equipment. Each 485 bus most connection and a control box or sensing box, each control cassette of three switch, each sensor box can receive 1 road sensor signal. The number 485 bus according to need to be configured.
(4) can be in license plate identification host and all other front-end equipment between the cable transmission, or wireless transmission to realize the remote system.
Typical lighting plan:
(1) to conform to the national standard lighting toll station or similar situation place, do not need to increase the fill light.
(2) using one or more flood light source illuminates the whole environment.
(3) using a condenser light light license plate area, such as: LED lighting, etc.
Typical acquisition plan:
(1) usually adopt low illumination, super wide dynamic, adversity light, anti-glare, backlight compensation, road special, automatic aperture camera.
(2) the special custom refitted camera, the identification of host to control the camera image quality.
Typical back end plan:
(1) license plate identification host, server, operating terminal can constitute a complete system.
(2) if the system size is small enough, the server module and operation terminal module can be deployed in license plate identification host.
(3) between multiple systems, can through the server networking between, to realize the multiple management.
(4) network can use cable or wireless means to realize the remote system.
Four, the application and the customer benefit
Vehicle license plate automatic recognition and can be widely used in community pass in and out management, transportation management, flow detection, etc.
Five, involving the product
A sensing system of vehicle plate recognition, no sensor license plate identification system, mobile license plate recognition system.
