Research On ZigBee And Its Application In Smart Home

With the development of the science and economy,people's living standard improves enormously , so people pay more and more attention to their living environment .They want a intelligent living space which makes life safer,more comfortable and more convenient .Then, the concept, smart home appears.Smart home system, which connects the facilities and devices in the home to form a home network and manages them centralized, provides people more comfortable and convenient life. Home network, an important part of smart home system, is always the research focus. The traditional home networks use kinds of wires to connect facilities and devices of the house. It costs much and it is hard to expand the system to compliant some new appliances or devices. The quick development of the short-ranged wireless communication technology provides a new choice to people. When using the wireless network, people are free of the pulling wires and the flexibleness,convenience and efficiency of smart home system is fully embodied.Through the analysis and compare of the several related short-ranged wireless technology standards which are popular nowadays, we think ZigBee, a new low-power,low-rate and low-cost short-ranged wireless technology, is better suitable for the smart home system. So we bring forward to design a smart home system based on ZigBee technology.This paper discusses the ZigBee standard then introduces some concepts related to the ZigBee application development. We adopt Chipcon's single-chip solution CC2430 to build our smart home system. The whole system design includes system resolution,profile design,ZigBee wireless module,hardware and software of each ZigBee function node. Our system implements such functions: organizing network automatically,device's dynamically joining network, PIR node's automatic sending alarm signal and light remote control. At last, this paper discusses the key issue such as mobile function,power saving and system secure.