1ã Can avoid the loss of funds. The traditional artificial cash charging model has many defects. On the one hand, it has high work intensity and low efficiency. On the other hand, it is easy to cause loopholes or cash loss in finance. In contrast, the parking lot management system adopts computer charging, and each payment is confirmed, counted and recorded by the computer, so as to avoid operation errors or cheating. 2ã Ensure vehicle safety. The form of manual receipt and issuance may cause omissions or no records to find, car loss or false report of car loss, which brings a lot of inconvenience to the parking lot management, and can not ensure the property safety of the owner's vehicle. The parking lot management system will automatically store each parking record, and is also equipped with functional modules such as image comparison and owner vehicle capture. Information comparison will be carried out at the entrance and exit to protect the owner's vehicle safety. 3ã Promote the effective use of parking spaces. Parking space guidance is an important technology in the parking lot management system. It is a modern intelligent parking lot system that obtains empty parking space information by installing parking space detectors in each parking space, provides and transmits parking space information to car owners through data processing, and guides car owners to park their vehicles. This parking lot system technology can help car owners quickly find parking spaces, reserve / retain parking spaces and quickly find cars, effectively prevent congestion in the parking lot, improve the use efficiency of parking spaces, accelerate vehicle turnover, improve the economic benefits of the parking lot, improve customer satisfaction and shape a good image of the parking lot. 4ã Effectively maintain the order of the parking lot. The parking lot system is mainly managed in three forms: license plate recognition, card reading and ticket reading. Vehicles can enter and leave the parking lot quickly and effectively alleviate the congestion at the entrance and exit of the parking lot. Vehicles using the card reading / ticket method can get the card / ticket by themselves and pay manually when they leave the site (internal vehicles can directly read the card and leave the site); Using the license plate recognition method, internal vehicles can enter and exit without parking, while external vehicles only need to pay for entering and leaving the site, without the cumbersome process such as card / ticket collection.