The Research And Implementation Of The Experimental Platform Of Internet Of Things,based On WSN And M2M Technology

In nowadays, many colleges have been competing to develop the professional courses of Internet of things. But the reality of curriculum construction is not perfect.The technology of WSN is as the networking professional practice courses construction program of high school,actually which is one of the technology of internet of things. One who want to learn the technology of internet of things. They also need to learn M2 M,Internet, and Embedded system technology.There is still no platform contained all of them.In view of this topic,Analysising the situation of the construction scheme of Internet of things from part of domestic high school.and select the wireless sensor network as the starting point of the technology.In order to achieve protocol conversion between WSN and GPRS network, upload data of WSN to M2 M service platform, this paper is to researching a platform of the Internet of things,based on WSN based and M2 M technology.The following are achievements about the paper.The design of the M2 M gateway integrated Zig Bee and GPRS technology. The core processor of M2 M hardware is s3c2440 a, the Zig Bee sensors node collect WSN data and sim900 a transsfers the data by GPRS protocol. At the same time,M2 M gateway also realize the docking WMMP protocol with the remote M2 M platform server.Network interconnection and data fusion between WSN and GPRS.The data fusion from the application layer, software layer, hardware layer of M2 M gateway to achieve. At the hardware, M2 M gateway connect core processor S3C2440 A with WSN sink node and GPRS module. In the system software, M2 M gateway respectively transplant the TCP / IP protocol and Linux system. So far has been done to the preparation of two kinds of network protocol conversion. Finally, in the application, the network data conversion and integration in the Linux system of M2 M gateway,corresponding application program to achieve different WSN and GPRSTransplantation and construction of the embedded operating system of the hostcomputer. The function of host computer mainly include:monitoring WSN data, starting M2 M function and the module of port configuration.The research work includes the hardware environment of S5PV210 processor with Corter-A8 kernel, transplantation of operating system based on Linux, and the function about GUI etc.In this paper, the experimental platform of Internet of things has been tested. The results show that the experimental platform has achieved the expected goal, the hardware design of the platform and the feasibility of the principle of software development are verified.Finally, through this experimental platform, students can not only learn WSN technology, but also can carry out the development of embedded system, host computer function interface design, M2 M protocol conversion technology, such as professional learning. The platform realizes the of networking technology from the basis of learning to the comprehensive development of the overall application architecture, supports both simple MCU development, but also provide rich interface extensions, for embedded,communication engineering, network engineering and other related professional to learn the object and more linked network technology enthusiasts learning and product development.