(The parking lot management subsystem can realize long-term car (monthly rent) temporary parking (hourly rent), external service and guest parking service, and can realize the image comparison function of entering and leaving vehicles. 3.2.1 The basic functions and attributes of the system The smart card has Waterproof, anti-magnetic, anti-static, no wear, large amount of information storage, high security, one card multi-purpose and other properties. There is no need to swipe the card to operate the RF radio frequency induction card, and the operation is more convenient. The whole Chinese menu-type operation interface is simple and convenient to operate. Perfect financial management functions, automatically form various reports. Temporary car is fully automatic, reducing personnel operation and high degree of automation. The scrolling LED Chinese electronic display prompts make users and managers clear at a glance. The unique license plate number entry and display system greatly improves the anti-theft measures in the parking lot. The card output system automatically prompts that the card storage capacity is insufficient. The vehicle entry and exit fully intelligent logic self-locking control system strictly controls the cardholder's entry and exit behavior, which meets the requirements of "one card, one vehicle". High-quality road brake with anti-lift bar, full unloading, photoelectric control, with accurate balance system. High reliability and adaptability of digital vehicle detection system. The anti-smashing car installation can ensure that whether it is an approaching vehicle or a vehicle that generates a reverse, as long as it stays under the brake lever, the brake lever will not fall. Special management functions for special vehicles)