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Low-cost visual sensor node for BlueTooth-based measurement networks

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3 Author(s)
Ferrigno, L. ; Dipt. di Automazione, Univ. of Cassino, Italy ; Pietrosanto, A. ; Paciello, V.

This paper proposes a wireless visual sensor comprising of a low-cost grayscale camera as the sensing hardware and a BlueTooth (BT) 100-m slave module as the transmission hardware. The latter enables the sensor to be inserted as a node in a medium-range BT measurement network. The proposed sensor, which is designed to satisfy precise specifications in terms of image-transfer rate and power consumption, represents a good image-acquisition solution in a wide range of applications where hardwiring between camera and image processor is undesired. This paper describes the hardware used and the overall operating principle behind the sensor, discusses the sensor-node performance, and reports the results of reliability tests.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:55 ,  Issue: 2 )