摘要
设计了一种新颖的组合式地面传感器智能监视网络节点,该节点由新型热释电红外传感器、微波感应位移模块和微型串口摄像机组成。其中,红外传感器和微波传感器分别用于检测横向和纵向移动目标,二者输出的脉冲信号用于触发串口摄像机抓拍目标图像,以避免耗电量较大的摄像机连续工作。此外,微波传感器采用脉冲供电,进一步降低节点功耗。实验结果表明:本红外传感器和微波传感器的目标探测距离均达到40 m,与带有红外补光和图像压缩的大焦距镜头串口摄像机的作用距离相匹配,从而实现了体积小、功耗低、高集成度、适用于野外或室内无人值守的地面传感器节点的设计目标。
A novel combined ground sensor intelligent monitoring network node was designed,which consisted of a novel pyroelectric infrared sensor,a microwave induction displacement module and a micro serial port camera.The infrared sensor and the microwave sensor were respectively used for detecting the horizontal and vertical moving targets,and the pulse signals outputted by the two modules were used to trigger the serial camera to capture the target image for the purpose of avoiding continuous operation of the camera with large power consumption.In addition,the microwave sensor adopts pulsed power supply to further reduce power consumption of the node.The experimental result shows that the target detection distance of the infrared sensor and the microwave sensor are both 40m,which matches the working distance of the large focal length lens serial port camera with infrared-fill-light and image compression function.Thus,the goal of designing a ground sensor node,which is small in size,low in power consumption,cost-effective,high in integration and suitable for unattended function in the wilderness or indoors,is realized.
作者
李剑
潘仲明
张卓航
Li Jian;Pan Zhongming;Zhang Zhuohang(School of Intelligence Science and Technology,National University of Defense Technology,Changsha 410000,China)
出处
《电测与仪表》
北大核心
2020年第12期137-141,共5页
Electrical Measurement & Instrumentation
关键词
无线传感器网络
热释电红外传感器
微波感应位移
异构传感器节点
wireless sensor network
pyroelectric infrared sensor
microwave induction displacement
heterogeneous sensor node
