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Illumimote: Multimodal and High-Fidelity Light Sensor Module for Wireless Sensor Networks

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6 Author(s)
Heemin Park ; Univ. of California, Los Angeles ; Friedman, J. ; Gutierrez, P. ; Samanta, V.
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We describe the system requirements, design, system integration, and performance evaluation of the Illumimote, a new light-sensing module for wireless sensor networks. The Illumimote supports three different light-sensing modalities: incident light intensity, color intensities, and incident light angle (the angle of ray arrival from the strongest source); and two situational sensing modalities: attitude and temperature. The Illumimote achieves high performance, comparable to commercial light meters, while conforming to the size and energy constraints imposed by its application in wireless sensor networks. We evaluated the performance of our Illumimote for light intensity, color temperature, and incident light angle measurements and verified the function of the attitude sensor. The Illumimote consumes about 90 mW when all features on board are activated. We describe our design and the experiment design for the performance evaluation.

Published in:

Sensors Journal, IEEE  (Volume:7 ,  Issue: 7 )

Date of Publication:

July 2007

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