The Applications And Researching Of ARM Embedded System In Communications Of Family

The Smart Home system is a "3C" system concentrating of families automation, computers, communications technology ,it realizes the home centralized control of information appliance, remote survey and control, and the exchange of information and communications between equipments . If we take the research of Home Gateway as a breakthrough to the Smart home system, it will be possible in future to occupy the commanding height of competition, and make good economic and social benefits.The Smart Home system that the paper has reseaeched takes a practical project as a background and bases on the network. it describes features of the traditional smart home systems and points out their disadvantages and limitation. According to these analyses we put forward that it is the great trend in the future to develop the wireless smart home system based on the short-ranged wireless networking technologies.Then through the analysis and compare of the several related wireless technology standards we bring forward that the low-rate wireless personal network specification Zigbee, based on the IEEE802.15.4 specification, is the best standard suitable for a low-rate wireless home control system. Furthermore, the paper expatiates the specification.The paper fully takes account of the status of home informationization and the paper takes into account the needs of interconnection, centralized control, remote survey and control , low-cost and the flexibility of all appliances within the home,and designs the totel structure of the home network with the wireless ZigBee technology to realize low-cost,low power consumption and the large capacity.The paper designs a new module of wireless communications, this module takes eight byte mini controller that is ATMEGA64 and the CHIPCON company introduces the first CC2420 which is fit on 2. 4 GHZ IEEE 802. 15. 4 standard to realization, it can decline the cost of wireless communications and prove its' dependability,it can be used singleness and embedded others devices.And the paper has taken Linux which is a popular open-source and freel operating system. As well the paper has achieved an embedded Linux's development flow.Finally, The paper thoroughly analyzed wireless ZigBee protocol,ZigBee network technology and their wider application in the future.the paper has specifilly researched the hyper text transmission protocol HTTP and designs the control interface of visiting and controlling the electricity of family by network.