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DSPs for Energy Harvesting Sensors: Applications and Architectures
July-September 2005 (vol. 4 no. 3)
pp. 72-79
Rajeevan Amirtharajah, University of California, Davis
Jamie Collier, University of California, Davis
Jeff Siebert, University of California, Davis
Bicki Zhou, Intel
Anantha Chandrakasan, Massachusetts Institute of Technology
Battery technology has not kept pace with recent growth in the number, variety, and capability of embedded and portable digital electronics. Energy harvesting from human or environmental sources is a promising alternative, and active harvesting has already seen commercial applications in wind-up and shake-to-recharge electronics. However, passive energy harvesting using mechanical vibration as a power source has potentially wider application in wearable and embedded sensors, as either a complement or replacement for batteries or solar energy harvesting. Two applications--one computing an FFT to monitor a shipboard gas turbine's vibrations and the other using data from a wearable acoustic biomedical sensor to analyze a user's exertion state--illustrate the range of requirements. The SensorDSP is a chip implementation for a wearable biomedical sensor.
Index Terms:
Low-power design, Energy-aware systems, Integrated circuits
Citation:
Rajeevan Amirtharajah, Jamie Collier, Jeff Siebert, Bicki Zhou, Anantha Chandrakasan, "DSPs for Energy Harvesting Sensors: Applications and Architectures," IEEE Pervasive Computing, vol. 4, no. 3, pp. 72-79, July-Sept. 2005, doi:10.1109/MPRV.2005.54
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