The Research Of Wireless Sensor Network System On Smart Home

Emerging wireless communication technology is changing the traditional smart home,wireless gradually replaced wired as a favored solution for the smart home.Wireless sensor networks in the field of intelligent home has unique advantages.In this paper,we take the smart home wireless sensor network system as research topics to achieve a smart home monitoring system.The system takes the ZigBee technology as the core,and constructs the wireless sensor network.ZigBee wireless sensor network is composed of three parts,which are smart home gateway,coordinator and sensor nodes.In this paper,taking ARM11 S3C6410 processor as the core,equipped with embedded WinCE operating system,to build a smart home gateway platform.Using C# language to develop the site monitoring software based on WinCE operating system,to achieve human-computer interaction control in 4.3 inch LCD screen.In this paper,taking the S3C6410 processor as the center to expand the NAND FLASH and DDR storage circuit,Ethernet interface circuit,LCD interface circuit,RS232 serial circuit,power circuit and JTAG debugging circuit.The key of the coordinator and sensor nodes is the realization of the wireless function unit.In this paper,we design the wireless function unit around the CC2530,and design a variety of sensor circuits in the sensor nodes.In order to counteract the attenuation of the ZigBee wireless signal in the complex environment,a circuit design scheme of CC2530+CC2592 is proposed,which effectively solves the problem of signal attenuation and system instability.In this paper,based on the C/S structure,using TCP/IP protocol and Ethernet design,the data communication between the field monitoring software and the Android mobile phone client is established,and the function of the remote monitoring of the home environment is realized.In this paper,a series of tests about the system networking and communication function have been done.The experimental results show that: the system can collect and display temperature and humidity,light strength,smoke gas concentration,a human body infrared and e-gate card information in the home environment,and realize the intelligent control of home appliances and curtains.The system achieves the home environment of the field monitoring and remote monitoring functions and the purpose and requirements of the subject,with good application value.