Implementation And Research On Smart Gateway Research On Resource Abstraction And Method Scheduling In Perception Layer

As the wireless sensor network’s technology matures and the arrival of the era of the Internet of Things, a variety of intelligent sensing system are gradually getting people’s attention, gateway technology is the core and key technologies in networking system, charged with the role of bridge on interoperability between perception layer and application. However, there are still many questions in current research on networking gateway. Firstly, the traditional gateway of WOT tends to have certain limitations, most developments are for a particular business or type of WOT application, and don’t have a unified gateway standards for the WOT, resulting in the form a fragmented situation. Secondly, the current research of gateway still focus on how to deal with data from perception layer, the study of the overall structure7s complexity and functional diversity of gateway is not a lot, this also resulted in witch the traditional gateway’s functional structure is relatively simple, lack of reusability and extensibility and characteristic of a short life cycle.Thirdly, we are currently in the era of cloud computing and big data, the heterogeneous sensing devices from the perception layer and the data people concerned are becoming more and more complex, how to make these large amounts of data to provide an ideal quality of service has become the most important problem we need to solve in the era of cloud computing applications.This paper is based on the development of domestic and international’s study about gateway, for these few questions, Our research focused on the resource abstraction and methods scheduling problem witch is usually exit in gateway,Proposed the architecture model of gateway system and design scheme,And proposes an abstract model of the gateway resources, to achieve a unified abstraction of heterogeneous devices, Furthermore this article use polling and news columns’s data scheduling strategy to complete the gateway resources for the corresponding device registration, Achieving heterogeneous sensing devices’s Plug and Play and accessing smoothly, Simultaneously, System uses the XML format to realize resource abstraction, and achieve Resources transparency and liberalization, in order to realize the Unified management of resources and Sharing. Furthermore Based on this model, this paper designs the format of message and communication protocol interface, When the corresponding function expansion, Just follow the appropriate interface formats, Based on the proposed scheme we achieve a gateway system, and Simulation test results prove the feasibility of the design.