Technical Difficulties of License Plate Recognition Parking Lot Management System Tigerwong Technolo

Nowadays, the project of car parking management system for license plate recognition has sprung up all over the city, becoming a beautiful scenery. With the advancement of technological innovation, it will become more convenient, more reliable and more advanced, and better serve people's modern life. (1) the capture of license plate is based on the intelligent recognition technology of video image, which has high requirements for the shooting effect and scene of the capture video unit. For example, how many pixels does the license plate captured by the video unit occupy in the picture? Is it the same as the picture level of the captured picture? Is the tilt angle a factor that can affect the effect of the license plate? wait. (2) the number of equipment and installation location of each system are different, and its configuration mostly depends on the geographical environment and traffic conditions of the site. Therefore, the technical debugging in the process of system scheme design and implementation can not be uniform, but must be adjusted according to local conditions in combination with the actual situation. (3) the system has high requirements on the appearance of vehicle body, license plate, etc. During commissioning, attention shall be paid to the cleanliness of license plate; Whether the license plate is covered by other parts of the vehicle body; Whether the vehicle surface will reflect light and affect the captured image, and formulate corresponding solutions. (4) the capture rate and recognition rate of vehicle number plate are quite different in different brand products and application scenarios. Generally speaking, the higher the definition of the video unit, the better the product effect; The better the low illumination performance and photosensitive performance of the video unit product, the better the effect. Try to use professional and high-quality products to improve the performance of the whole system. (5) the system has high requirements for environmental planning and equipment installation and positioning. For the front-end equipment, the position where the induction coil used to trigger the capture is laid; The number and location of speed bumpers, the location of video units and the setting of fill light source all have a decisive impact on the overall recognition effect of the system. In the scheme design, not only the field investigation shall be carried out, but also the sampling and analysis of vehicle access shall be carried out at the same time when necessary, or the field simulation effect test shall be carried out. (6) during commissioning, a set of emergency plan must be formulated to quickly deal with the abnormal operation or failure of the license plate recognition car parking management system, and troubleshoot the failure accordingly to avoid traffic congestion.