Research And Realization For Mobile RFID Middleware In The Environment Of Wireless Sensor Networks

We can get both the identity ability of RFID and the perception ability of WSN with the integration of these two technologies. With the development and promotion of Internet of Things technology, there already exsit many projects developed based on RFID or WSN. Meanwhile some other projects are attempting to integrate those two technologies. However, the integration technology is not mature enough to thoroughly solve the various difficulties encountered in the real applications till now. It costs too much for development and is hard for extension and maintenance as most of the projects are built with specific hardware devices and application scenarios. This paper focuses on these issues and makes a study of mobile RFID middleware in wireless sensor network environment.This paper takes mobile RFID middleware as the main line, runs through the wireless sensor network, mobile computing, middleware, business process modeling and the execution technology combined with practical RFID applications. This paper focuses on areas of the integration technology of RFID and WSN, the middleware architecture based on OSGi, the lightweight business execution engine and the extention of the engine in the distributed environment. It designs a set of mobile RFID middleware solutions based on wireless sensor networks which have been implemented and deployed in real applications.This paper first introduces the background and current situation of RFID middleware, wireless sensor network and business process execution engine technology, and then introduces the contents of study and innovation points of this paper. Secondly, this paper introduces some current mainstream RFID middlewares and their business integration technology to analyze their characteristics and the common shortcomings, after that we put forward the research idea of this paper, and introduce some related works. Then this paper shows the integration of RFID & WSN and research on the key technologies of mobile RFID middleware architecture in detail, including scalable support for multi-reader and multi-sensor framework, adaptive scene switch framework and self-organization algorithm for distributed business process execution engine. After that we describe the concrete implementation of the various parts of the system. A scenario is given to make the system demonstration. At the end of the paper, we summarize the entire paper, look forward to the prospect of the mobile RFID middleware and propose some future works.