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Multi-target Tracking Based on Dynamic Cells in Wireless Sensor Networks

To develop effective multi-target tracking system in Wireless Sensor Networks (WSN), researches have been made on the collaborative signal processing (CSP) model and the Load Balancing Tree(LBA). An event triggering multi-target tracking model based on dynamic Cells is brought up. In this paper, the entire region is divided into grids. As a target appeared, the nearest Local Aggregator(LA) awoke all nodes in adjacent eight grids to compose a Cell. Then the Cell began tracking target. Multi-Cell can tracking multitarget independently and simultaneously. The paper defined Main target and Sub-target and divided multi-target tracking into three situations: non-intersection targets, intersection targets with partially overlap Cell, intersection targets with completely overlap Cell. The simulation result proved that the algorithm is timely and effectively.