MOCUS: moving object counting using ultrasonic sensor networks Online publication date:: Sun, 30-Dec-2007
by Quanbin Chen, Min Gao, Jian Ma, Dian Zhang, Lionel M. Ni, Yunhao Liu
International Journal of Sensor Networks (IJSNET), Vol. 3, No. 1, 2008
Abstract: Counting the number of moving objects in a given area has many practical applications. By investigating a series of state-of-the-art technologies, we propose a Moving Object Counting approach using Ultrasonic Sensor networks (MOCUS). In MOCUS, we deploy a network of three-node ultrasound sensor clusters, with each cluster having one ultrasound transmitting node and two ultrasound receiving nodes. Such three-node sensor clusters can successfully offset interference problems and accurately detect the direction of moving objects. In order to cover a wide area, MOCUS employs multiple sensor clusters, forming a wireless sensor network. To alleviate the impact of object moving velocity, shape of objects and distinguish closely tied multiple objects, we introduce intra-cluster analysis and inter-cluster cooperation techniques. We deploy a MOCUS prototype in our lab and evaluate the design through extensive experiments.
Online publication date:: Sun, 30-Dec-2007
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