Study On Parking Guidance System Based On ZigBee

With the rapid development of social economy,the income of urban residents and the demand for material life was also getting higher and higher,how to make travel conveniently had become the primary concern of the family,the number of private cars was increasing accordingly.Although the car improved the quality of life,because the land resource constrainted,the number of cars increased dramatically in the public area could not satisfy people's demand for parking,resulted in the "Parking" phenomenon eventually,now how to solve the parking difficulty had become a hot issue.Now the most parking lot was still not enough intelligent,it just to solve the most basic needs of parking,because the guidance system is not perfect,When the owners entered the parking lot only to look for parking spaces blindly,such a waste of time,and easy to cause the traffic congestion in the field.This article aimed at the parking problems mentioned above,analyzed the research background and current situation of domestic and foreign for the intelligent parking lot,according to the functional requirements of intelligent parking lot,researched on the parking guidance system based on ZigBee.This system used CC2530 as the core chip,used ultrasonic sensor and data acquisition chip to form mighty ZigBee wireless sensor network in the terms of ad hoc networks,to collect,transmit and gather parking information,the parking lot of the parking information and guidance information display on the LED in real time,the data acquisition terminal and PC server communication center used GPRS wireless communication system.For the software part,this article gived a detailed analysis of the ZigBee stack and the development environment,designed the software of router,coordinator,GPRS module.This article studied on the algorithm of parking guidance system,established the grey multiple attribute decision model,with the improved Dijkstra algorithm,combined with case analysis,calculated the floor of the best parking space and the optimal route,according to the prompt information the owner could enter the free parking spaces conveniently.Upper machine part adopted the Java language and Oracle database established management platform,used the TCP/IP protocol,and the data acquisition end based on the C/S connection through GPRS,staff could view and manage parking information conveniently.This system also increased the designing of the Android client,the owner accessed server center database with mobile phone,could query and book the parking information remotly,with the help of baidu map module could also achieve the function positioning and navigation,the phone APP made the parking more convenient and humanized.This design improved the parking lot of the intelligent level and management level greatly,parking guidance system made parking more convenient,greatly saved the owner to find the parking space of the system in time,largely solved the parking problem,had a good user experience.