Micro Power Meter for Energy Monitoring of Wireless Sensor Networks at Scale

Xiaofan Jiang, Prabal Dutta, David Culler, and Ion Stoica

Abstract

We present SPOT, a scalable power observation tool that enables in situ measurement of nodal power and energy over a dynamic range exceeding four decades or a temporal resolution of microseconds. Using SPOT, every node in a sensor network can now be instrumented, providing unparalleled visibility into the dynamic power profile of applications and system software. Power metering at every node enables previously impossible empirical evaluation of low power designs at scale. The SPOT architecture and design meet challenges unique to wireless sensor networks and other low power systems, such as orders of magnitude difference in current draws between sleep and active states, short-duration power spikes during periods of brief activity, and the need for minimum perturbation of the system under observation.

Details

Publication typeProceedings
Published inProceedings of the 6th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2007)
URL10.1145/1236360.1236386
Pages186–195
PublisherACM/IEEE
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