Design And Implementation Of Smart Home System Based On Zigbee And Android

In recent years, the concept of smart home in the country has been well known.The technology of smart home at home and abroad has also achieved a rapid development. Smart home could provide people with not only a traditional living environment, but also a full range of functional living environment having network appliance,information appliances, intelligent security by joining the Related technical of Internet and Things.Today, more and more people are yearning for the life of intelligence, information and network.Therefore, there will be more and more market demand for smart home.Through the analysis of he features and requirements of smart home system,the paper designed a functional, low cost, safe, stable smart home system.In this paper,we adopt the Cortex-A9 as a microprocessor core.We design and realize the wireless communications,environmental monitoring,infrared learning and emitting for smart home.The overall system is divided into three parts: the acquisition and control of data from Zigbee terminal node,programming of the master controller,programming of IP Camera.In order to reduce crosstalk signal, the paper select Zigbee wireless communication protocol and the latest CC2530 chip from TI company.The master controller could achieve the management of node devices through the serial port control coordinator.These management includes allowing network, not allowing network and restore the factory settings. The sensing devices nodes periodically sends the collected data to the host controller via Zigbee network.The main controller can not only update detected environmental information in the environment interface in real time, can also control node at any time through the control interface. Master sends a command to notify IR repeater of learning infrared signal, and then stored the signal in the database of master controller to prepare for transmitting infrared signals at next time. Through the wireless network, the master controller can access IP Camera, Then,users can set video quality,open voice,close voice on master controller to monitor family situation.This paper designs a smart home system with Comprehensive function.After the te st,the master controller can successfully access the IP Camera by IOTC protocol.In addi tion,the master controller can also controller nodes through Zigbee wireless communication protocol and successfully receive the feedback of nodes.The validation results show that the smart home system we designed meets the requirements of users.