The Research And Implementation Of Smart Home System Based On Zigbee And Android

Nowadays,with the concept of Internet of things were put forward in China."Experience China","Wisdom City" and other grand vision build a beautiful blueprint of information society together.As a implementation of family information,smart home has become an important part of social informatization development.This paper based on the close attention at home and abroad about the latest development of smart home.At the same time,I have researched the existing on the market of smart home system fully.Therefore I understand the structure of smart home system On the whole.Then according to the smart home system specific business needs analysis,and after analysis and comparison on various wireless communication technology,I have put forward a smart home system based on Zigbee and Android In this paper.This article main research content is as follows:First,this paper propose a Zigbee authentication mechanism based on network white list.Firstly,the formation mechanism of Zigbee network understanding,proposed key authentication scheme for Zigbee.And then through the network verification and improvement of key authentication scheme,proposed a white list network authentication scheme.This program is a software way to achieve the key function,realizes the function of network access authentication and eliminated from the principle of network problems on key authentication access mode,but also simplifies the operation and enhance the user experience.Second,a task based rule conflict detection and conflict avoidance model is proposed.In the smart home system,with the increase of the diversity and complexity of the custom rules,there is a conflict between the rules.In order to solve the conflict of various tasks in the system,this paper proposes a task based rule mechanism,which mainly includes: timing task rule conflict detection and scene task rule conflict avoidance strategy.Timing task conflict detection mechanism will be the user's newly added rules according to the timing of the task conflict algorithm and regular task rules in the rule base of all the rules of conflict detection.Conflict avoidance is used to avoid conflicts when the task is executed in different scenarios,and a dynamic priority conflict avoidance strategy is adopted.Third,design test and verify the mechanism and rules of the network model.For the Zigbee network module test,this paper uses message frame capture tools to view and analyze the coordinator node network,and verifies the access mechanism of white list.For the testing of the Android client module,this paper first test the status of the Android client device updates and the implementation of the next control command.Secondly,to solve the timing task rule conflict detection and scene task rules collision avoidance strategy in the Android client are customized timed tasks and mission scenarios of various types,through the comparison of results the implementation of the Android client system and the expected results obtained by the algorithm,so that the accuracy of rules and improve the mechanism of task based on Android client to achieve.This smart home system to take the development of mixed model.In order to verify the function of the whole system,this paper uses a modular test program that whole system divided into the Zigbee network module and Android client module,and Each module is developed and tested according to the specified protocol.Finally,test the entire system.The test results show that the system realizes the function of the expected design.