Research Of Light Control System Applied In Smart Home

Information technology has been pratically used in human's life, and smart home is developing well. Now smart home system is transferring from simplized network to uniformed internet control. But due to the lack of uniformed communication protocal and interface, the development of smart home technology has been delayed.Intelligent light control system, being a part of smart home system, is an smart system based on home network. The control methol of a light control system can also be applied in other household appliances. The light control system mentioned in this thesis is based on Ethernet home network, TCP/IP as protocal. Through remote network control, the uniformed control of light devices and other intelligent household appliances can be realized. Using open standard and communication protocal is helpful to the development of smart home.Among the modules of light control system: dimmer is a device with the function of light control. This module is designed according to fixed dimmer standard in UL certification. After a lot of work on parameters select, software test and enviromental tests, this dimmer is the first to be a light controller of single-way 1000W which also passes UL certification, and it means that it has high pratical value. In network interface module, compared with other communication method, Ethernet and TCP/IP advances in performance. In this research, through of method of apply simplized TCP/IP protocal in 8 bit embedded system, only only the full structure of TCP status being realized, but also the disadvantages of high hardware requirement and large delay being conquered. Realization of DHCP client can free is module from manual configuration. Light control terminal has the function of remote control, status memorization and scene set, which realized the family smart light control.In this thesis, the control of light and other appliances in living room has been simulated, through the simultaneous control of 4 light devices and 3 other devices, the effect is good. It shows that this control method can be applied in the control field of other household appliances.