| The issue which this thesis researchs on is wirless heterogeneous networks intergrating scheme used in Internet of Things(smart home). Based on the existing intergrating schemes, the thesis introduces a heterogeneous network intergrating scheme including PAN, LAN and mobile network, then designs and realizes an embedded gateway which is the core device in the scheme, and develops the hardware and software of the embedded gateway. Finally, an experimet platform under the enviroment of Internet of Things(smart home) is set up for testing the performance of gateway.The achievements of the thesis can be concluded as follow:In the second chapter, the technol-ogy of PAN, LAN and mobile network is introduced at first, then the technology requirement and design scheme of heterogeneous wireless network intergration are explained. In the third chapter, the design of hardware platform which is based on LPC2378ARM7processor is explained at first, following is the introduction of modules and design of circuit, the job of transplant of μC/OS-Ⅱ embedded system is completed after that, and then the design and realization of gateway application software is discussed in detail. In the forth chapter, the design of Ethernet drive and the transplant of TCP/IP protocol are accomplished at first, and the function of Ethernet acess node is test, then the job of design of communication program used in ZigBee and GSM is accomplished, at last it is the design of control interface and program of touch screen. In the last chapter, at first it is the design of communication protocol between heterogeneous networks such as Ethernet, ZigBee and GSM, and each function of the gateway is test after the experiment platform is set up in the enviroment of Internet of Things(smart home). As for the problems found in the test, some appropriate solutions are proposed after analysis. |
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