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Start-up behavior of event-driven sensor networks for impact load monitoring

: Roscher, K.-U.; Fischer, W.-J.; Heinig, A.; Pfeifer, G.; Starke, E.


Sensors and Actuators. A 156 (2009), Nr.1, S.109-114
ISSN: 0924-4247
Fraunhofer IPMS ()

Sensor networks integrated in components made of textile-reinforced composites can be used for monitoring impact loads on these components. A very low power consumption of such systems is achieved by switching on the power supply only when a relevant impact is detected. This paper presents a sensor network which consists of modules with start-up sensor, activation circuit and, application specific integrated circuits (ASICs) that can be integrated into a composite made of glass fibers and polypropylene. A fast start of the data recording after the beginning of the impact event is very important. The effect of several network components on the achievable start-up time is shown and results of simulation and exptl. investigations are given. In addn., the power consumption during one measuring cycle is considered.