热释电红外传感器在无线遥控报警系统中的应用  

Application of Pyroelectric Infrared Sensor to Radio Control Alarm System

作　　者：王松德[1] 梁会琴[1] 张须欣[1] 朱小龙[1] 

机构地区：[1]洛阳师范学院物理与电子科学系,河南洛阳471022

出　　处：《光谱学与光谱分析》2007年第6期1124-1126,共3页Spectroscopy and Spectral Analysis

基　　金：河南省教育厅科技攻关项目(2006510015)资助

摘　　要：热释电红外探测无线遥控报警系统由热释电红外探测模块、无线电收/发射模块、数字编/译码集成电路和语音录放模块组成。当人体进入监视区时,红外传感器首先将接收到的红外辐射能转换成电能信号,再经内部电路放大处理,输出控制信号启动发射系统工作,经编码脉冲调制后,由发射模块向空间辐射无线电遥控编码信号;接收机收到信号后,便进行解调、放大、整形,从解码器输出编码脉冲,然后触发语音录放系统,播放事先录制好的警示语,提醒值班人员。该系统主要采用了RDP-18热释电红外探测模块,具有从信号接收至控制输出的全部功能。整体装置为模块化结构,具有频率稳定、工作可靠、免调试等特点,遥控距离1000m,可适用于多种场合的需要。A radio control alarm system was developed, which is composed of a pyroelectric infrared detecting module, a radio receiving/transmitting module, a digital encoding/decoding IC, and a voice recoding/playing module. When somebody enters the surveillance area, the infrared sensor will receive and transform the radiant energy into electric signal, which is amplified by internal circuits, and then generates a control signal to start transmitting system. As the encoded pulse is modulated by the transmitting module, a radio control signal will be spread to space; When received, the signal will be demodulated, amplified, shaped and decoded to trigger the recoding/playing circuits, which play the recoded voice to awake watch people. The system mainly adopts the RDP-18 pyroelectric infrared detecting module, which has full function from signal receiving to output control. The whole device is a module configuration. It has the advantage of frequency stable, work reliable, no debugging, and a remote control distance of 1 000 m, and is suitable for use in many kinds of demands.

关 键 词：RDD-18红外传感器 数字编码 无线遥控 语音报警 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]