DeftRFID: A Lightweight and Distributed

Radio Frequency Identification (RFID) has become a popular identification technology and the RFID application market is undergoing explosive development. A successful RFID application requires a dedicated middleware to maximize the benefits of RFID technology. DeftRFID proposed in this paper is a distributed, lightweight, and scalable RFID middleware. Compared with other existing RFID middleware, DeftRFID consists of three main layers which can be distributed across multiple machines, and provides friendly rules management interface to application developers. It also can be applied to other kind of sensor networks. Abundant functions of DeftRFID include: device management, data filtering, aggregation, transformation, dissemination, and functional Software Development Kit. Also, a Laundry Visual Management System (LVMS) was developed in this paper to show the utility of the middleware we proposed. It is proved that DeftRFID has high practical value.