面向目标侦测的非配合式无线传感器网络研究

针对战场目标侦测需求,在满足无线传感器网络低成本、低功耗约束条件的前提下,选择了传感器组合,设计实现了非配合式无线传感器网络硬件平台,采用红外传感器作为"唤醒传感器"实现节点休眠唤醒功能,同时检测人员与车辆,磁阻传感器负责铁磁物质检测,声音传感器实现车辆与人员的声音信号特征检测,利用简单实用的数据处理方法对各传感器信号...

Research on untagged wireless sensor network for object detection

According to the requirements of object detection in battlefields,a sensor combination is selected and an untagged wireless sensor network is designed under low-cost and low-power restrictions.Infrared sensors work as "wakeup sensor" to realize waking-up and sleeping of sensor nodes and detect vehicles and people simultaneously,a magnetic sensor is used to detect ferromagnetic material and a sound sensor can distinguish the sound signal characteristics between vehicle and people.All signals of sensors are processed by the simple and practical signal processing methods.The multi-sensor data fusion method based on D-S evidence theory is designed and developed.The experimental results has shown that the proposed system can effectively detect,identify and track the people and vehicle in the laboratory environment.