Laser Intrusion Detector Working Principles

Laser intrusion detectors are also called laser beam detectors or laser beams. They belong to the category of active intrusion detectors and consist of a laser transmitter and a laser receiver. The laser transmitter consists of a laser transmitter, a modulated laser power supply, and a corresponding direction adjustment device; the laser receiver consists of a laser receiver, an optoelectronic signal processor, and a corresponding support mechanism. The laser transmitter will emit a directional strong laser beam with good directivity, uniform frequency and uniform phase, which is unmatched by other light sources. The warning line is formed with a small visible modulated laser beam (single beam or multiple beams), and a laser intrusion prevention system for blocking the perimeter, plane, and three-dimensional space is formed by means of blocking alarm.

A laser transmitter is set up at the beginning of the protection zone, and the directional strong laser beam emitted by it is directed towards the receiver. The receiver converts the received optical signal into a digital signal through an optoelectronic device and is processed by a discriminator. When the confirmation signal is normal, all the indicator lights are off and the monitoring state is maintained. When the light beam is interrupted, the signal is abnormal and the indicator lights up at the same time, and an alarm signal is output at the same time. In order to achieve the monitoring of the full path of the laser light path.