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.
Original language | English |
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Pages (from-to) | 55-65 |
Number of pages | 11 |
Journal | International Journal of Sensor Networks |
Volume | 3 |
Issue number | 1 |
Early online date | 30 Dec 2007 |
Publication status | Published - 2008 |
Externally published | Yes |
Keywords
- moving object counting
- wireless sensor networks
- ultrasound
- clustering