Research On Key Technology Of Parking Guidance Based On NFC And Two-Dimensional Code

With the escalation of domestic vehicle population,the parking system lacks scientific management.This phenomenon has led to the inadequacy of parking space,which in turn has caused some related problems,such as traffic congestion and resources waste.Researching parking guidance technology,managing parking system scientifically,and enhancing the utilization efficiency is the breakthrough of alleviating this problem under the existing parking facility.Through analyzing the development and current situation of parking guidance system in civil and abroad and combing this analysis with the parking problem faced by Chinese citizens,this paper adopted NFC and two-dimension technology and analysis of vehicle management methods based on Automatic Lockers Theory.Improving Bellman-Ford algorithm to realize dynamic route leading.The model of recommending optimal parking vacant based on multi-index was established.And the overall scheme of parking lot parking guidance system was proposed.The paper mainly studied and designed the four modules of the client-side APP,system server,database and interface of collecting vehicle information located at the entrance and exit n.Among them,the focus of the study is client-side APP.The APP can interrelate vehicle and parking space together and Complete parking information collection,relying on NFC and two-dimension code scanning function of Android smart phone.Based on the method of collecting accurate location information,parking guidance and reverse car seeking function are realized.The system sever contains two parts: WeChat Official Account and web server.The former provides connector that based on WeChat query and parking space information,and the latter processes other information and responding to service demands from other modules.Thedatabase enables the storage of dynamic and static related information such as parking spaces and vehicles.The interface enables the real-time vehicle access information to be automatically acquired and uploaded to the backend service end,which overcomes the problem that the access information of the traditional parking lot access control system cannot be accessed remotely.This paper realized a WeChat-based parking space sharing model based on NFC and two-dimension scanning.Some essential functions are realized,including parking space enquiry and sharing,parking guidance,and reverse car seeking etc.These functions can effectively integrate the existing parking resources and meet the parking demands of users,which is significant to the applied value in parking area.