多PIR动态扫描下的区域目标定位方法

在研究现有PIR的目标定位技术的基础上,提出了一种动态下使用红外热释电传感器(PIR)的新型目标区域定位方法;该方法使用多PIR探测节点构成感知单元,该探测节点在电机的带动下作往复式匀速旋转运动;根据多次试验下红外信号的特点,采用峰峰值时间差法和帧差法,确定目标坐标信息。根据PIR在某一时间内只能扫描到某一区域的特性将感知单元分为不同区域,进行区域目标定位;该方法使用多PIR构成探测节点,实现动态探测区域扫描;并能够在目标信息较少的情况下进行快速定位,提高定位精度;并且利用多时段多PIR的扫描探测,可以判别目标的运动速度和方向。实验结果表明,在给定实验条件下,使用该方法可实现对大范围区域进行快速定位,同时给出目标的运动轨迹。

Multi-PIR regional target localization method under dynamic scanning

Based on the research of existing PIR targeting technology, It propose a new target area location method the which use of a dynamic pyroelectric infrared sensor (PIR); The PIR detection method using multi-nodes sensing unit, which detects nodes mainly as a reciprocating motor driven rotary motion uniform; According to several tests under infrared signal characteristics,using peak time difference method and frame difference method to determine the target coordinate information.According to PIR only at one time scan to a regional characteristics,the sensing unit is divided into different regions, regional location.The innovation of the method using the multi-PIR detection nodes for dynamic detection of regional scanning,And be able to quickly locate the target information in fewer cases, improve accuracy; And the use of multi-PIR scanning, speeds and directions of motion can distinguish the target.The experimental results show that, Under the given experimental conditions, Using this method can achieve fast positioning for a wide range of areas, and give the target trajectory.