감시정찰용 이동형 센서노드의 이동 명령 생성기

Abstract

Using a large number of low-cost sensor nodes enables the monitoring of physical properties in dangerous or isolated environments. How each sensor node is deployed and moved becomes a very important issue, because a finite number of sensor nodes are used. The spatial gradients of the measurements are used to effectively monitor the physical properties such as the environment temperature, vibration, or the intensity of radio activity. The gradient is estimated from the perturbation/correlation, which is used to measure property changes with respect to sensor node movement. Each sensor node’s movement is planned based on the gradient value, the distribution of all sensor nodes, and the area measured/not measured. The proposed sensor node planner shows better performance than when using evenly distributed/fixed sensor nodes.