| With the rapid development of China’s economy,more and more Chinese choose to buy vehicles.The increasing number of vehicles has brought a serious problem of parking.The problem of parking is due to the shortage of parking space on the one hand and the low efficiency of parking lots on the other.In some traditional parking lots,the lifter and fees collection are always operated by human.This means of parking is not only inefficient and highly labor-intensive,but also easy to cause mistakes and chaos especially when the number of vehicles to park is large.At present,the sharing economy is hot,and using the product in a self-service way and online payment are popular among customers.Given this,it may be desirable to design a self-service parking lot that can make convenience for users,reduce the cost of manual labor and maintenance and improve the parking efficiency.Starting from the actual demands,this article provided the technical scheme of the self-service parking lot and the overall frame design of the system.In self-service parking lot system,parking lock controller controlled the rising and dropping of the lock directly and collected the information of temperature and water level at the same time.Central controller worked as the head of the system and was responsible for the completion of communication with other subsystems.Central server saved the information collected by parking lot controller into a database for the administrator to query.Mobile client faced users directly,users could use an APP to achieve a series of functions such as parking query,reservation,controlling the rising and dropping of the lock,time counting,online payment and so on.The main content of this article included an overall design of the self-service parking lot,a design of parking lock controller,a design of central controller and a design of central server.The design of parking lock controller involved the selection of the master chip,sensors,motor driver,etc,the design of hardware circuit,the fabrication of PCB and the design of related software.The design of central controller involved the selection of running platform,the construction of cross compiling environment and the design of related software.The self-service parking lot designed in this article works in a self-service way and owns a high degree of automation,it can improve the parking efficiency effectively and alleviate the problem of parking to a certain extent. |