PIR的多节点目标多次定位研究  

Research on multiple nodes target repeatedly localization of pyroelectric infrared sensor

作　　者：赵迪[1,2] 杨卫[1,2] 刘前进[1,2] 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《红外与激光工程》2014年第4期1284-1288,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金(50675213)

摘　　要：为了充分利用热释电传感器(PIR)的被动探测特性,拓宽热释电传感器在目标定位领域的应用。在峰-峰值时间差测距方法的理论基础上,提出了一种利用PIR针对运动目标(人体)的定位理论,并针对单节点实现目标定位存在定位盲区的不足出发,设计巧妙的机构实现多节点目标多次定位。根据感知节点最优布设原则,以双节点的最优布设为例展开讨论,找出不同节点下的最优布设模型。通过对双节点最优布设模型下对运动目标多次的探测实验表明,利用多节点实现运动目标探测区域多次定位的理论是有效和正确的。该方法打破了热释电传感器硬件常规使用方式,进一步提升了PIR的使用范围。In order to make full use of the passive detection features of the PIR and broaden the scope that the PIR applied in the field of target localization, one method of using PIR for moving targets （human） location theory was proposed based on the pyroelectric signal peak-peak value time difference method which was used to achieve the target′s distance. And for the shortage of a single node′s localization in blind area, reasonable optical lenses and ingenious machinery structure have been selected with good design, so the moving target′s multipoint repeatedly localization was easily realized. According to the multi-nodes optimal layout principles, the different nodes optimal layout model was obtained respectively through discussing the optimal arrangement double-nodes. Finally, an experiment was implemented to verify the effectiveness and accuracy about moving target more position points localization under the two nodes optimal layout model. This method breaks the pyroelectric sensor hardware routine use, improving the range of use for PIR.

关 键 词：红外热释电传感器 单节点 多节点 最优布设 定位 

分 类 号：TN219[电子电信—物理电子学]