NDLI: Exploiting ultra-low-power ultrasonic wake-up triggering for sensor nodes distance measurements

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Exploiting ultra-low-power ultrasonic wake-up triggering for sensor nodes distance measurements

Content Provider	ACM Digital Library
Author	Dromedari, Matteo Seraghiti, Andrea Lattanzi, Emanuele Bogliolo, Alessandro Freschi, Valerio
Abstract	Out-of-band signaling provides a valuable support to the management of wireless sensor networks. Among other signals, sound has a propagation speed in air which is fast enough to be neglected in typical sensor network applications, and slow enough to be measured by means of low-cost embedded systems. An ultrasonic triggering mechanism has been recently developed for VirtualSense, an ultra-low-power sensor node featuring a Java runtime environment. Ultrasonic triggers provide on-demand wakeup capabilities that can be exploited by routing nodes to be switched on whenever there is a packet to be routed towards the sink, while spending all the idle time in an ultra low power inactive state where even the radio module is turned off. In addition, the same hardware components can be used to perform pairwise distance measurements that can be exploited for localization. In this demonstration we show the possible use of VirtualSense ultrasonic wake-up modules as distance estimators.
Starting Page	1
Ending Page	2
Page Count	2
File Format	PDF
ISBN	9781450320276
DOI	10.1145/2517351.2517375
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-11-11
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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