Introduction to the principle of the zone type optical fiber alarm system
Optical fiber alarm system is an advanced perimeter security means, which is now widely used in pipelines, airports, factories and other places. What's its principle? Next, let's listen to our Shanghai guangtuo to introduce the principle of optical fiber alarm~
Based on the optical fiber vibration sensing technology, the zone type optical fiber alarm system takes the optical cable as the sensing element, continuously collects the external vibration signals, transforms the vibration signals into interference signals, and transmits them to the optical fiber signal processor. After intelligent analysis and pattern recognition, the processor can judge different external invasion behaviors, as well as the behaviors such as damage to the warning zone, mechanical construction, etc At present, early warning is given, so as to achieve the purpose of real-time alarm and monitoring of the threat behavior in the intrusion warning area. The system effectively solves the problems of traditional security equipment, such as short monitoring distance, high power consumption, high false alarm rate, poor anti-interference ability, and complex construction. It is generally attached to the perimeter fence / fence or buried in the ground, which does not affect the appearance of the site. The system is suitable for any shape of the perimeter, not affected by terrain, uneven ground and other factors, and its detection sensitivity is not affected by moisture Support all-weather work under the influence of wet, temperature, rain and snow.