Realizing the Internet of Things via RFID Sensor Nets

本研究的目的是制定设计原则，并证明，通过原型设计，一个新的传感器网络的基础上的无线射频识别（RFID）系统组件的日常对象的可行性。 该愿景利用RFID的优势，同时解决两个关键挑战，即缺乏传感器集成到RFID标签和需要仔细重新设计的收发器（即，下行和上行链路以及多路访问协议）。 这项研究成功的关键是华盛顿大学英特尔研究实验室已经取得的两项关键进展。 首先，一种新的无源RFID标签，称为无线识别和传感平台（WISP），与适当的传感器集成，并设计用于增强功率收集。 第二，软件定义的阅读器（SDR），允许创新的链路和介质访问控制（MAC）protocols是available.With相对于智力的优点，研究追求一个集成的系统解决方案，RFID网络设计在各种相互作用的抽象层次。 作为一个例子，该研究考虑了耦合电路和电磁仿真，其表征了阅读器处的反向散射上行链路信号，这反过来可以建议链路和MAC层组件，例如调制和编码以及专用于减轻干扰的冲突避免。该研究有可能通过SDR代码的免费分发和WISP的有限可用性以及通过主题教程的传播来加速RFID网络的学术研究。 该项目的成功实施可以将RFID技术从其在供应链环境中阅读标签ID的预期应用推向实现无处不在的“物联网”的更雄心勃勃的目标。"

The objective of this research is to formulate design principles for and demonstrate, via prototyping, the feasibility of a new sensor network of everyday objects based on radio frequency identification (RFID) system components. The vision exploits the advantages of RFID while addressing two key challenges, namely the lack of sensor integration onto RFID tags and the need for careful redesign of the transceivers (i.e, down and up links as well as the multiple access protocol). Central to the success of the proposed research are two key advances already in place at University of Washington-Intel Research Labs. First, a new class of passive RFID tags, called wireless identification and sensing platforms (WISPs), integrated with appropriate sensors and designed for enhanced power harvesting are available. Second, a software-defined reader (SDR) that allows innovation of link and medium access control (MAC) protocols is available.With respect to intellectual merit, the research pursues an integrated systems solution to RFID network design at various interacting levels of abstraction. As an example, the research considers coupled circuit and electromagnetic simulation that characterizes the back-scattered uplink signal at the reader, which in turn can suggest link and MAC layer components, such as modulation and coding as well as collision avoidance dedicated to interference mitigation.With respect to broader impacts, the research has the potential to accelerate academic research into RFID networks via freeware distribution of the SDR code and limited availability of WISPs as well as dissemination via topical tutorials. Successful execution of the project can move RFID technology from its intended application of reading tag IDs within a supply chain environment toward the more ambitious goal of realizing a ubiquitous "internet of things."