Changsha community license plate recognition and charging system, Changsha agency license plate recognition and Bluetooth recognition and charging system

Hunan community license plate recognition management and charging system Changsha agency license plate recognition and charging system, Changsha Bluetooth induction recognition management system, Changsha automatic license plate recognition and charging system manufacturer supply telephone number Changsha Sihai Electronic Technology Co., Ltd., dedicated smart card access gate, access control and attendance all-in-one machine manufacturer wholesale Supply maintenance center. The vehicle license plate is the vehicle ID card. Its particularity and importance determine that the license plate recognition system has become an indispensable and important component of the urban intelligent transportation management system. The license plate recognition (R) system is an intelligent recognition system based on image processing, pattern recognition and other technologies. It recognizes license plate numbers through images of vehicles traveling on the road captured by cameras. The process involves: vehicle detection - image collection - preprocessing - license plate positioning - character segmentation - character recognition - result output. The license plate recognition camera uses light suppression shielding, electronic shutter adjustment, wide dynamic function, etc. to capture the license plate: Strong light shielding: Based on the low-illumination color camera, the brightest part of the image is blocked through the function of the software. In traffic monitoring, the strong light of the headlights can generally be blocked to capture the license plate clearly. However, the biggest disadvantage of this camera is that the software cannot clearly distinguish the brightest part of the image, and may also block the license plate number. At the same time, it cannot handle the capture of high-speed moving objects. At present, domestic cameras do a lot of work in strong light shielding, and the results are mixed. Adjustable electronic shutter: For capturing high-speed moving objects (the speed of cars on the highway is generally above / hour), you can achieve clear capture by reducing the electronic shutter speed, which is usually adjusted manually. However, the big problem with this method is that the illumination is different during the day and at night, and a shutter speed must be set to adapt to daytime and nighttime monitoring respectively. Wide dynamic function: This is a good way to solve the impact of car lights on snapshots. Wide dynamic was first proposed by Panasonic. When the background light is too bright, ordinary cameras cannot solve the problem of displaying light and dark images well. As the most important means of determining vehicle identity in the field of intelligent transportation, license plate recognition technology plays a great role in realizing intelligent management of traffic. License plate recognition technology has penetrated into various tasks. ——Monitoring and alarming For vehicles included in the "blacklist", such as wanted or reported lost vehicles, vehicles with unpaid fees, vehicles without annual inspections, hit-and-run and illegal vehicles, etc., you only need to enter their license plate numbers into the application system. License plate recognition equipment is installed at designated intersections, checkpoints or carried by law enforcement officers at any time and placed as needed. The system will read the license plate numbers of all passing vehicles and compare them with the "blacklist" in the system. Once a designated vehicle is found, an alarm will be issued immediately. information. The system can work continuously throughout the day, without fatigue, with extremely low error rates. It can adapt to high-speed vehicles and can complete tasks while the vehicle is in motion without affecting normal traffic. The driver will not be aware of the entire monitoring process, and confidentiality is high. The application of such a system will greatly improve the efficiency of law enforcement. Hunan community license plate recognition management and charging system Changsha agency license plate recognition and charging system, Changsha Bluetooth induction recognition management system, Changsha automatic license plate recognition and charging system manufacturer supply telephone number Changsha Sihai Electronic Technology Co., Ltd., dedicated smart card access gate, access control and attendance all-in-one machine manufacturer wholesale Supply maintenance center.