Design Of Smart Voice Home Appliance Control System Based On ZigBee

With the rapid development of economy and science & technology, people pursue a higher quality of life, especially in terms of convenience and comfort of home life in prosperous society. It provides a new direction for the development of smart home what is the advance in embedded technology, short-range wireless communications technology and microcontroller technology. This paper presents a smart voice home design of home’s electrical control system based on Zig Bee, under the premise of full study research status and development trend of smart home system. Through the Zig Bee network smart home system combines the large number of household appliances, electrical and electronic equipment together and assembles an integrated management system that can be used to control household appliances, smart security and environmental monitoring. Specific studies are as follows:Firstly, introducing the overview of domestic and international situ ation and trend about smart home, presenting a smart voice home design of home’s electrical control system, it is based on Zig Bee by in-depth study of Zig Bee wireless communication protocol stack structure. The system includes three functional modules, su ch as a remote control, the receiving end, intelligent security device. By Zig Bee wireless communication build networks, it possesses household electrical control and intelligent security alarm functions.Secondly, combined with embedded, Zig Bee wireless c ommunications, voice recognition, LCD and touch, infrared sensor, GSM communication technology, it designs three functional components of the system(remote control, the receiving end, intelligent security device) specific hardware. The remote control incl udes the Zig Bee module, the voice recognition module, GSM module, TFTLCD module, power module. The receiving terminal node automatically join the Zig Bee wireless network, voice recognition module for input the voice signal to control appliances, GSM module for long distance control and security alarm, TFTLCD module for touch human-computer interaction, control appliances, work status, and electrical fault display. The receiver includes Zig Bee modules, relay modules, etc., achieving electrical control comman d which is received, sending the state of electrical work and electrical faults. Intelligent security devices includes infrared sensor module section, alarm module, Zig Bee module, achieving security alarm.Thirdly, through integrated development environmen t(Real View MDK) and Zig Bee protocol development environment(IAR Embedded Workbench), it designs the software of three functional modules. By the software, the system achieves such functions as human-computer interface, voice recognition, Zig Bee wireless communication and networking, and electrical control intelligent security.Finally, debugging network system, validation, and optimization, results show that the system achieves the wireless appliances control, voice input, intelligent security alarm, remote monitoring and other functions.