调制光安全保护系统的设计

The Protection System of Modulation Light-beam

介绍了利用红外线的发射与接收所构成的光束保护系统。红外线的发射与接收形成一“安全网” ,利用其档光性能 ,可以实现安全防范功能。为提高系统抗干扰性能 ,采用调制的红外光线 ,经过信号处理 ,驱动继电器动作 ,从而实现报警和保护。重点阐述了光束保护系统的基本工作原理 ,并给出了主要硬件原理图。

The protection system of light-beam formed emission and receiving of infrared ray is introduced.The safety network formed by emission and receiving of infrared ray may conduct the function of safety by its blocking light function.To improve the system anti interference characteristics,using modulation infrared ray ,after processing the received signal,the receiving device is able to make a electrical relay work and gives an alarm and protection. In this paper,the fundamental principles of work are introduced and the main framework is given.