Design Of Smart Home System Based On Wireless Sensor Networks

With the pursuit of high quality of life and the development of smart home, smarthome system based on wireless sensor networks will have a vast potential fordevelopment. Currently the construction of urban high-speed network has achievedinitial success, concept with smart home and internet of things has been acceptedgradually. Informational family is the future direction of development, smart home asthe important part of informational family, will get more and more people’s attention.The system takes STM32microcontroller as the core. The uIP protocol stack istransplanted to STM32to construct embedded web server and wireless sensornetworks is used to construct the internal network of smart home. In combination withGSM communication technology, a smart home control system with the advantages ofreliability, simplicity and flexibility is designed.Firstly, the paper analyzes advantages of different wireless sensor networks.According requirements of low-power and low-cost for wireless sensor networks, thesystem takes TI CC2530chip as the core. Combined with TI wireless design program,F-type antenna and matching circuit is designed. Using the Texas InstrumentsCC2530chip Basic-RF two-way wireless communication protocol, combined with theapplication layer algorithm, a stable, efficient and practical wireless sensor networkprotocol is constructed. Experiments show that the wireless sensor networks designcan ensure stable transmission of smart home information and meet the wireless sensor network node requirement of small size, low power consumption and low cost.Secondly, the smart home system control module circuitry is designed. The uIPprotocol stack is transplanted to STM32to construct embedded web server, GSMmodule based on SIM900A and ENC28J60Ethernet controller module is used toconstruct the system control module. Smart home control module can be usedindependently as the master module, can also be used as transit node, linking betterperformance control module and the wireless sensor network coordinator node tocommunicate, to meet the smart home system performance requirements for themaster module.Finally, system remote control is designed according to user needs. Users cancontrol of smart home by system remote control, web page, client software or SMS.The experimental results show that this system can realize the local and remotecontrol of smart home stably, has the advantages of simplicity and flexibility and hasa wide application prospect.