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A low-complexity algorithm for intrusion detection in a PIR-based Wireless Sensor Network

Abu Sajana Rahmathullah (Institutionen för signaler och system, Signalbehandling) ; Ramanathan Subramanian ; P. Vijay Kumar ; Syam Krishnan ; Bharadwaj Amrutur ; Jeena Sebastian ; Malati Hegde ; S. V. R. Anand
Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP), 2009, Melbourne, Australia p. 337 - 342. (2009)
[Konferensbidrag, refereegranskat]

We present a low-complexity algorithm for intrusion detection in the presence of clutter arising from wind-blown vegetation, using passive infra-red (PIR) sensors in a wireless sensor network (WSN). The algorithm is based on a combination of Haar transform (HT) and support-vector-machine (SVM) based training and was field tested in a network setting comprising of 15-20 sensing nodes. Also contained in this paper is a closed-form expression for the signal generated by an intruder moving at a constant velocity. It is shown how this expression can be exploited to determine the direction of motion information and the velocity of the intruder from the signals of three well-positioned sensors.



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Denna post skapades 2013-10-31. Senast ändrad 2016-03-22.
CPL Pubid: 185959