Research On The Key Technologies Of Distributed Gateway In Internet Of Things

The concept of Internet of things is very popular in recent years, but its development is relatively slow. People expect the smart home products are not as rapid as imagined, the major manufacturers of products are not compatible with each other and difficult to exchange, user experience is not good. The key problem lies in the lack of a unified technical framework for the Internet of Things, as well as the missing studies of intelligent gateway that coordinate the handling of the various smart devices at home network. Based on the AllJoyn networking protocol, the key technologies of distributed gateways are studied. The main work is as follows:Firstly, this paper makes a detailed research on the related technologies in the field of intelligent home, analyzes the basic architecture and main functions of AllJoyn technology framework, and demonstrates the wide application of AllJoyn communication technology.Based on the AllJoyn communication protocol, the function modules of the distributed gateway are analyzed and designed, the distributed gateway system infrastructure is realized, and the distributed gateway basic function service for smart home is perfected.Secondly, aiming at the stability and security problems in the distributed gateway system, a pertinent design scheme is put forward. In order to guarantee the stability and service reliability of the gateway service, the data synchronization and information forwarding mechanism of the distributed gateway system is proposed and implemented; Join device control permissions management mechanism, to enhance the user's use of smart home appliances security.Thirdly, in order to improve the user experience, a multi-mode device linkage and a separate device control mechanism are designed in the distributed gateway, and an emergency mechanism is added to deal with the unexpected situation of the device linkage. Aiming at the imperfection of AllJoyn Config basic service framework, a high reliability method call process of equipment configuration is proposed.Finally, a distributed gateway system actual operating results through simulation tests to verify the feasibility of the above functions.