基于热释电红外传感器的多节点定位系统研究与设计

针对热释电红外传感器(PIR)在人体探测领域中越来越广泛的应用,研究设计了一种基于PIR的检测定位系统,可实时完成对人员目标入侵探测区域时的检测与定位,并预推出人员目标的行进轨迹;该系统由多个PIR感知节点组成,每个感知节点通过传感在动、静两种状态下对探测区域进行信息采集;最终融合多节点与不同状态下传感器采集的数据,算出各个传感器的探测角度值,以交叉定位的算法,得到目标的定位坐标;经实验证明,该系统运行稳定,检测灵敏,定位效果很好,拓宽了热释电传感器在定位定向方面的使用范围。

Research and Design of Multi-node Positioning System Based on Pyroelectric Infrared Sensor

The pyroelectric infrared sensor (PIR) is widely used in the field of human exploration. Research and design of detecting system based on PIR is for the purpose that it can complete intrusion detection and location detection region, track and predict the staff when the goal go through the detection area at real-time. The system consists of a plurality of PIR sensing nodes, each node through the sensor in dynamic-static two kinds of states, collect the information of detection area. The final fusion of multiple nodes and different state of sensor data acquisition, and detection angle are used to calculate the various sensor values. According to the cross location algorithm, positioning coordinates of target is obtained. Have been proved by experiment, the system with sensitive detection and good results, operates stably and broadens the range of use of the pyroelectric sensor in the position and orientation field.