| Due to the need of development of vocational education, Zhejiang Changzheng Vocational and Technical College developed independently the smart home experience center system (also known as smart home system) based on Internet of things and deployed it in the special experience center training room, so that IOT Specialty of Computer Department can realize a series of teaching task by the smart home system, In the design of smart home experience center system, I am mainly responsible for the overall scheme design, hardware and software of embedded family gateway and family internal network node module selection, as well as the system hardware specific design.In line with the miniaturization, modularization, systematic, low cost, low power consumption of system design principles, this paper analyzes the present development situation and the related technology of the Internet of things smart home system at home and abroad,then the overall structure of the Internet of things smart home system is put forward, that is, the structure is mainly composed of family smart gateway, family internal control network, external communication network, etc; And then gives the system design scheme, software and hardware selection:by comparing the main characteristics of wireless transmission technology, established the scheme of ZigBee wireless technology as the smart home system’s internal network mode with low power consumption, low cost, low transfer rate, large capacity and a way of ad-hoc network, ZigBee network node devices use the American Texas Instruments (TI) company CC2530chip, the software development uses IAR for MCS-51integrated development environment;In order to realize the remote control and wireless transmission function of the smart home system, this design combines the ARM technology and ZigBee wireless network technology, with Samsung ARM11S3C6410processor chip and some related peripheral device to form a family gateway control platform of the whole system, using embedded WINCE6.0as operating system; Family internal network is connected to the Internet or Wi-Fi through family smart gateway. Finally, hardware circuit design and software programming are completed according to design scheme.In this design, unified wireless protocol and different control protocol implement the management of the smart home system as a whole, reflects the smart home system characteristics of humanization, intelligent, network, provideing a new solution for the future of the smart home system design. |
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