The Establishment And Optimization Of Wireless Calling System Based On Zigbee

Along with the continuous deepening of reform and opening to the outside world, most areas of our country has changed the situation of poverty and backwardness, people's living standards greatly improved, car has entered the millions of ordinary families, become important assignments and a means of transport. But as the number of cars increases, traffic problems also gradually emerges, improve and governance transport has become an important part of urban management. Unable to solve the problem by increasing road capacity in the short term, so people trying to rational allocation of existing resources and scheduling up to solve the problem. With the rapid development of the Internet of things appear in many applications, vehicle networking is one of them, vehicle networking is the system platform of effective scheduling and management of vehicles using the inherent information and dynamic information of vehicles. Vehicle specific information readily available, generally dynamic information through wireless communication technology to capture, ZigBee as a wireless communication system, because of its multi-node, scalable, low power consumption, good security features, has been widespread concern, therefore the ZigBee wireless communication technology applied to vehicle networking applications, will have broad application prospects,but also conducive to solve the traffic problems.With the improvement of people's income, the probability of people choose to travel by taxi increase, but because of information asymmetry, there are often passengers can not take a car, but the taxi was empty situation, cause high taxi no-load rate and people are difficult to take a taxi.. In this paper, aimed at this contradictory phenomenon, relying on ZigBee wireless communication technology, to build a ZigBee-based wireless call taxi system.This paper introduces the research situation and direction of development in the domestic and foreign technology and ZigBee wireless communication network; next to TI's ZigBee protocol stack Z-Stack is studied, and the network delay, network security and power mechanism of setting and Optimization Based on the practical application of the equipment,according to the different types of application layer the corresponding development; then thePC wireless call system based on ZigBee in PC, the UI interface to achieve a simple human-computer interaction, in the underlying implementation of the coordinator through serial communication network and ZigBee, through the client communication between Sockect and Android, and the database can be realized on the ZigBee node, and user information taxi information query and management; finally, in the Android on taxi APP,registration, login and taxi including client users, to Call system is tested. Through the client to send a taxi information, the host computer processing, ZigBee network terminal node response to achieve a taxi all the communication process.