Research And Design Of Embedded Family Intelligent Gateway

In the world, home's intelligence system gained more and more people's favor through over ten years' development It applys auto-controlling and network communication technologies, communication devices, household electrical appliances and safeguard equipments are connected together by home information network, forming an effective organic system--smar thome system. The function of this system includes local and remote monitor. controland domestic transaction management.As the door and the governor, the home automation gateway is important, which is the core of the smart home system.In this paper, through the research of the embedded system's realizetheory and methods, and the mechanism of Linux' startup process, memorymanagement, process scheduling, network, defined several interface of the local net;replanted thel Linux to development platform; designed a home's intelligentsystem. The system, adopting the Ethernet network as the telecommunicationmedia, exchanged the information inside and outside of the home by the embedded gateway, realized the information's real time, efficient management and distribution, provide intelligent services for modern family life. It include the overall design of the home's intelligent system, the design of the home's inside receive/send controller, the development of the embedded gateway, the development of the part of long distance visit and control,.In the development of the home's inside receive/send controller, the two level interrupt receive device, which was compose of interrupt controller, was adopted to realize the home's digital signals' collection, the A/D converter was adopted to realize the home's analog signals' collection, the encoder was adopted to realize the home's digital signals' send. In the development of the embedded gateway, Shenzhen Yuanfeng corporation's S3C2410TK development platform was adopted as the hardware platform, Linux was adopted as the OS. The software design on the embedded gateway was edited in Red Linux9 using vi and compiled by crossing compilation arm-linux-gcc. In the development of the software of the embedded gateway, the character of the Linux as multitasking OS was best used to realize the multitask' run in harmony,What's more, the performance of the Linux' real time was researched and the system's real time was realized.