Book ChapterDOI
A wirelessly-powered platform for sensing and computation
Joshua R. Smith,Alanson P. Sample,Pauline Powledge,Sumit Roy,Alexander Mamishev +4 more
- pp 495-506
TLDR
This paper reports the first fully programmable computing platform that can operate using power transmitted from a long-range (UHF) RFID Reader and communicate arbitrary, multi-bit data in response to a single RFID reader poll event.Abstract:
We present WISP, a wireless, battery-free platform for sensing and computation that is powered and read by a standards compliant Ultra-High Frequency (UHF) RFID reader. To the reader, the WISP appears to be an ordinary RFID tag. The WISP platform includes a general-purpose programmable flash microcontroller and implements the bi-directional communication primitives required by the Electronic Product Code (EPC) RFID standard, which allows it to communicate arbitrary sensor data via an EPC RFID reader by dynamically changing the ID it presents to the reader. For each 64 bit “packet,” the WISP's microcontroller dynamically computes the 16-bit CRC that the EPC standard requires of valid packets. Because the WISP device can control all bits of the presented ID, 64 bits of sensor data can be communicated with a single RFID read event. As an example of the system in operation, we present 13 hours of continuous-valued light-level data measured by the device. All the measurements were made using power harvested from the RFID reader. No battery, and no wired connections (for either power or data) were used. As far as we are aware, this paper reports the first fully programmable computing platform that can operate using power transmitted from a long-range (UHF) RFID reader and communicate arbitrary, multi-bit data in response to a single RFID reader poll event.read more
Citations
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Journal ArticleDOI
Design of an RFID-Based Battery-Free Programmable Sensing Platform
TL;DR: To the authors' knowledge, WISP is the first fully programmable computing platform that can operate using power transmitted from a long-range (UHF) RFID reader and communicate arbitrary multibit data in a single response packet.
Journal ArticleDOI
Power-Up SRAM State as an Identifying Fingerprint and Source of True Random Numbers
TL;DR: It is demonstrated that a 512-byte SRAM fingerprint contains sufficient entropy to generate 128-bit true random numbers and that the generated numbers pass the NIST tests for runs, approximate entropy, and block frequency.
Proceedings ArticleDOI
Pacemakers and Implantable Cardiac Defibrillators: Software Radio Attacks and Zero-Power Defenses
Daniel Halperin,Thomas S. Heydt-Benjamin,Benjamin Ransford,Shane S. Clark,Benessa Defend,W. Morgan,Kevin Fu,Tadayoshi Kohno,William H. Maisel +8 more
TL;DR: This paper is the first in the community to use general-purpose software radios to analyze and attack previously unknown radio communications protocols, and introduces three new zero-power defenses based on RF power harvesting.
Journal ArticleDOI
Understanding the Internet of Things: definition, potentials, and societal role of a fast evolving paradigm
TL;DR: The evolutionary stages, i.e., generations, that have characterized the development of IoT are presented, along with the motivations of their triggering, and the role that IoT can play in addressing the main societal challenges and the set of features expected from the relevant solutions are analyzed.
Proceedings ArticleDOI
Recognizing daily activities with RFID-based sensors
TL;DR: A dense sensing approach that uses RFID sensor network technology to recognize human activities in a model apartment concludes that RFid sensor networks are a promising approach for indoor activity monitoring.
References
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Journal ArticleDOI
Inferring activities from interactions with objects
Matthai Philipose,Kenneth P. Fishkin,Mike Perkowitz,Donald J. Patterson,Dieter Fox,Henry Kautz,Dirk Hähnel +6 more
TL;DR: The key observation is that the sequence of objects a person uses while performing an ADL robustly characterizes both the ADL's identity and the quality of its execution.
Book
Energy Scavenging for Wireless Sensor Networks: with Special Focus on Vibrations
TL;DR: In this paper, the authors present an analytical model of a piezoelectric generator with an inplane gap closing converter for V2E power conversion, which is based on the basic dynamic model of the generator's bimorph mounted as a cantilever.
Journal ArticleDOI
Enabling ubiquitous sensing with RFID
TL;DR: Radio frequency identification has attracted considerable press attention in recent years, and for good reasons: RFID not only replaces traditional barcode technology, it provides additional features and removes boundaries that limited the use of previous alternatives.