红外和超声波互补式入侵检测方法  

Intrusion Detection Method Based on Fusion of Infrared and Ultrasonic

作　　者：徐东 李凯霖 王芃[1] 朱昊[1] 李玉和[1] 郭宏[1] XU Dong;LI Kai-lin;WANG Peng;ZHU Hao;LI Yu-he;GUO hong(Department of Precision Instruments,Tsinghua University,Beijing 100084,China;Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学精密仪器系,北京100084 [2]清华大学物理系,北京100084

出　　处：《仪表技术与传感器》2022年第5期93-97,104,共6页Instrument Technique and Sensor

基　　金：清华大学大学生研究训练计划(SRT)项目(2111T0169);清华大学实验室创新基金(100012003);清华大学本科教材及教学资源建设项目(2020ZY01_02)。

摘　　要：针对移动目标的距离检测问题,提出了一种红外探测器与超声波传感器互补使用的距离测量方法。组合使用2种不同类型的传感器,实现了20 m范围内移动目标检测,使用红外探测器敏感较远目标并测量距离,使用超声波传感器实现近距离测量,并通过物联网模块上传入侵信息。测量结果表明误差约为3.2%,对侵扰检测等应用场景具有参考意义。According to the problem of detecting moving targets,a distance measurement method using infrared detectors and ultrasonic sensors complementary was proposed.This method combined the use of two types of sensors to achieve the detection of moving targets within a range of 20 meters.Infrared detectors were used to detect distant intrusion targets and measure the distance,ultrasonic sensors were used to achieve close-range measurement,and intrusion information was uploaded through the Internet of Things module.Experimental results show that the distance measurement error of this method is about 3.2%,and has reference significance for application scenarios such as intrusion detection.

关 键 词：红外 超声波 测距 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]