CAJ | 학술논문

设计了一种主动对射式红外光电探测报警系统,由红外检测和信号处理两部分组成.它采用两个对射式探测距离为3 m的LH-A型光电开关作为入侵探测器,当有物体阻挡了光电开关发射的经过调制的红外光束时,光电开关产生一个开关信号.把开关信号送至AT89系列单片机作信号处理,经过判断后实现对特定方向通过的物体报警,同时也可以作流量计数器使用.该系统具有可靠性高、稳定性好、抗干扰能力强等优点.
설계료일충주동대사식홍외광전탐측보경계통,유홍외검측화신호처리량부분조성.타채용량개대사식탐측거리위3 m적LH-A형광전개관작위입침탐측기,당유물체조당료광전개관발사적경과조제적홍외광속시,광전개관산생일개개관신호.파개관신호송지AT89계렬단편궤작신호처리,경과판단후실현대특정방향통과적물체보경,동시야가이작류량계수기사용.해계통구유가고성고、은정성호、항간우능력강등우점.
@@@@An active correlated infrared electro-optical detection alarm system is designed. It includes infrared detection and signal processing systems. Two correlated LH-A electro-optical switches with 3 m detection distance are used as intrusion detectors. When the modulated infrared light beam from the electro-optical switches is obstructed by an object, a switch signal will be produced. The signal is sent to AT89 micro-computer unit (MCU). After processing and judging, an alarm for passing objects at special directions is given out. And the alarm system can be used as a flow counter. The system has the advantages of high reliability, good stability and anti-interference.