Design Of Wireless Home System Based On Embedded Web

In recent years,with the development of embedded technology and network control technology,the informational and comfortable life becomes the object of people. Smart Home aims at constructing safe,comfortable and convenient habitation space, through the network connecting the information equipment.The family network monitoring platform is a key part of the Smart Home system.The control systems based on TCP/IP technology and Browser/Sever architecture,has become one of the most common network platform for information exchanged.The embedded system resource is connected to the network by Ethernet and Internet technology,and the remote equipment is monitored and controlled by the users through the web browser.Through the analysis of the wireless network technology and the research of the intelligent home systems at home and abroad,the wireless home monitoring system based on Web technology is designed in this paper.The research point as follow:(1) The designing of sensor node terminals and the application-layer in wireless protocol,the wireless sensor nodes is designed by CC2430 chip.(2) The construction of Home Gateway.The embedded gateway platform is based on the ARM7 chip,the embedded operation system is based on the uClinux for its free, open-code and strong network supported characteristic.After the TCP/IP protocol reduced,the protocols of TCP,IP,ARP,ICMP are completed.(3) The development of application software in platform.The Browser/Sever application development model which be composed of client browser,Web server and database,is chosen.First of all,the embedded server is transplanted into the monitor system.The transmission mechanism between Web server and browser is provided by designing of the simple HTTP protocol.The dynamic interaction is completed by developing applications in the server with CGI technology.The kinds of environmental information will be collected by sensor nodes,and these data will be sent to the RF module of Home Gateway via wireless transmission. The RF module is connected to the main control unit of Home Gateway by the serial port,and through the Ethernet,the data is sent to the local computer for analysis from Home Gateway.The local computer is accessed by the remote users via the Internet;it makes the realization of the scene environment inquired.Similarly,through calling the CGI program in server,it makes the remote user to access and control the scene environmental by explorer outside the field,and the result is returned to the remote browser.