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Self-Powered Time-Keeping And Time-Of-Occurrence Sensing, Liang Zhou
Self-Powered Time-Keeping And Time-Of-Occurrence Sensing, Liang Zhou
McKelvey School of Engineering Theses & Dissertations
Self-powered and passive Internet-of-Things (IoT) devices (e.g. RFID tags, financial assets, wireless sensors and surface-mount devices) have been widely deployed in our everyday and industrial applications. While diverse functionalities have been implemented in passive systems, the lack of a reference clock limits the design space of such devices used for applications such as time-stamping sensing, recording and dynamic authentication. Self-powered time-keeping in passive systems has been challenging because they do not have access to continuous power sources. While energy transducers can harvest power from ambient environment, the intermittent power cannot support continuous operation for reference clocks. The thesis of this …