此系统采用AT89S52单片机，利用红外线的直线传播与叠加原理实现，设计的硬件电路简单，具有高抗干扰能力、故障识别能力强的特点；
This system adopted the single computer AT89S52, the hardware circuit was very simple and it had the characteristics of high anti-jamming capabilities and a strong ability to identify.
感应技术：采用人体热释红外线检测技术。具有灵敏度高、抗干扰强、待机功耗小等优点。
Sensitive technology: body heat releasing infrared ray testing technology is applied, with advantages of high sensitivity, strong anti-jamming capability and small power consumption.
数码电路控制，红外线感应，伸手自动出风；抗干扰能力强。
Featured with digit circuit, infrared sensor, and good interference resistant capacity.
同时对使用的红外线距离传感器的结构、传感器的探测空间以及对传感器干扰的处理进行了分析讨论。
At the same time, the structure, the detecting space and interference processing of the infrared sensor are also studied.
采用红外线通信技术提高了系统的抗电磁干扰能力．高速可靠。
By using the infrared communications, the system avoids electromagnetic interference and possesses high communication speed.
采用红外线通信技术提高了系统的抗电磁干扰能力．高速可靠。
By using the infrared communications, the system avoids electromagnetic interference and possesses high communication speed.
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