Wirelessly Powered Sensor Networks and Computational RFID

Wirelessly Powered Sensor Networks and Computational RFID

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The Wireless Identification and Sensing Platform (WISP) is the first of a new class of RF-powered sensing and computing systems. Rather than being powered by batteries, these sensor systems are powered by radio waves that are either deliberately broadcast or ambient. Enabled by ongoing exponential improvements in the energy efficiency of microelectronics, RF-powered sensing and computing is rapidly moving along a trajectory from impossible (in the recent past), to feasible (today), toward practical and commonplace (in the near future). This book is a collection of key papers on RF-powered sensing and computing systems including the WISP. Several of the papers grew out of the WISP Challenge, a program in which Intel Corporation donated WISPs to academic applicants who proposed compelling WISP-based projects. The book also includes papers presented at the first WISP Summit, a workshop held in Berkeley, CA in association with the ACM Sensys conference, as well as other relevant papers. The book provides a window into the fascinating new world of wirelessly powered sensing and computing.Figure 9 shows that as received power decreases to the point at which sufficient voltage can no longer be rectified for operation, the ... These devices typically require a small amount of current and when placed in a voltage divider configuration they can be easily be measured with the MSP430a#39;s ADC. ... The LM94021 has 1.8a—bC accuracy and a Fluke thermal probe was used as reference for the system.

Title:Wirelessly Powered Sensor Networks and Computational RFID
Author:Joshua R. Smith
Publisher:Springer Science & Business Media - 2013-02-26


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