License plate recognition technology requires that the moving license plate can be extracted and recognized from complex background, and the vehicle license plate can be recognized by license plate extraction, image preprocessing, feature extraction, license plate character recognition and other technologies. At present, the recognition rate of letters and numbers can reach 96% and the recognition rate of Chinese characters can reach 95%.
License plate recognition is widely used in expressway vehicle management, and Electronic Toll Collection (ETC) system is also the main means to identify vehicles by DSRC technology.
In parking lot management, license plate recognition technology is also the main means to identify vehicles. In the technical requirements of vehicle image and license plate information collection and transmission system in Shenzhen public parking garage (parking lot), license plate recognition technology has become the main means of vehicle recognition.
Vehicle license plate recognition technology combined with electronic toll collection system (ETC) can realize automatic vehicle recognition and automatic toll collection when passing through the intersection. In the management of parking lots, in order to improve the traffic efficiency of vehicles at the entrance and exit, license plate recognition is changing the management mode of entering and leaving the parking lot by building unattended fast lanes for vehicles (such as monthly trucks and internal free vehicles) that do not need to charge parking fees.
Parking lot management system
According to the design principle, the intelligent parking lot management system can be divided into three parts: information collection and transmission, information processing and man-machine interface, information storage and query. According to the purpose of use, the intelligent parking lot management system can realize three functions:
1, charging profit, unified management and care of parking lot vehicles.
2. Store the images of vehicles and cardholders when they flow in the parking lot.
3, text information collection and regular storage, for property management, traffic control department query.
With the continuous updating of science and technology, smart parking lots are also slimming down and have more and more functions. The latest smart parking card is only 1.7mm thick, and it is also equipped with new functions of dual-card issuance and dual-card quantity, which greatly reduces the management difficulty and makes the management more convenient and humanized. Parking management system configuration includes parking controller, remote IC card reader, induction card (active card and passive card), automatic intelligent barrier, vehicle sensor, ground loop, communication adapter, camera, MP4NET video digital recorder, transmission equipment, parking system management software, voice prompt, etc. The system is helpful for companies, enterprises and government agencies to manage the entry and exit of internal vehicles and foreign vehicles in a modern way, and is of great help to strengthen enterprise management and improve the company image.
With the development of social economy and the rapid increase of the number of urban vehicles, many cities plan to build large parking lots in the central area to meet the parking needs of the public. In order to meet the needs of modern large-scale parking lot management, Tianyi Zhonggong vigorously developed an intelligent parking management system. Compared with the existing traditional management, the system can greatly improve the management level of parking lots and further improve the utilization rate and economic benefits of large parking lots.
The above was answered by Shanghai Handshake Building Decoration Engineering Co., Ltd.