Entropy based technology license plate recognition system combines with many years of practical application in the industry. In order to meet the use of pure license plate recognition application environment and facilitate the installation and debugging of engineering companies, the product, through independent research and development, subverts the traditional installation method of separating ticket box and road gate, creatively combines road gate and license plate recognition system, and realizes the real integration of parking lot, The appearance of the product is made of tuhaojin technology, which is suitable for the management of all kinds of parking lot entrances and exits in high-end communities, commercial squares, airports, hotels, industrial parks and other places.