| With the development of the Internet of Things up to national level, various sensing devices and technologies have been developing rapidly. The convergent access technology between different kinds of heterogeneous complex sensing networks and existing communication networks becomes the hot issue of the research on Internet of Things. Current convergent access technology includes gateway-based access technology, covering network access technology-based and mesh-based access technology. The study to propose the perfect blend of access method with a set of advantages is the goal of this thesis.This thesis makes a comprehensive analysis on the basis of comparing several existing access technologies to forward a access system which can base on the most advantages. The access system is divided into three parts to design:main part of the gateway, management application platform and remote access platform. It also defines a unified internal data format in the gateway and analysis four other data structures. The main function of the gateway is simulated. The format of command is defined. The features of management application platform are also tested. Through the formation of the test network, the overall function of the gateway and the function of remote query are also tested.The main part of the gateway bases on many advantages. The use of virtual IP technology which is set on routing mechanism enhances the perception of the network; the use of priority through buffer mechanism enhances the efficiency of the data processing; because of the setting of the security authentication mechanism, the security of the system has also been guaranteed. Management application platform which establishes Socket communication connection to the main part of the gateway, while completing the perception of the management of the network and gateway, can build rich applications. Remote access platform is designed on building a Web server by the gateway side. It can meet the needs of remote query. |
PDF Full Text Request