Distributed fiber optic vibration sensing monitoring host sensor production factory-INNO

Fiber optic is a commonly used communication medium, and in the era of rapid development of 5G technology, fiber optic has become increasingly important in IoT technology and social security. The impact of fiber optic working environment may directly affect the implementation of fiber optic functions. Por lo tanto, it is necessary to detect fiber optic vibration, especially in the event of destructive events, and to provide intrusion signal alarms for the use of fiber optic. Sin embargo, the similarity and complexity of various intrusion signals make it quite difficult to detect and classify vibration signals for alarm. How to accurately identify various intrusion signals and reduce false alarm rates is the first technical challenge to be solved for intrusion signal detection in fiber optic vibration detection systems.

Fiber optic vibration sensors are generally used in the field of perimeter security, and typical applications include museums, sports venues, national defense communication optical cables, estaciones base de comunicación, aeropuertos, train stations, líneas ferroviarias, oleoductos y gasoductos, etc..

Sensores de fibra óptica are both sensors and transmission channels. En comparación con los sensores eléctricos tradicionales, fiber optic sensors have advantages such as high measurement accuracy, fuerte resistencia a la interferencia electromagnética, lightweight materials, good channel safety, larga distancia de medición, and continuous distributed measurement. By burying or laying detection optical fibers in the monitored structure, various physical information such as temperature, estrés, cepa, etc.. of the structure can be obtained through optical signals, thereby achieving real-time monitoring of abnormal conditions.

The entire system consists of a distributed fiber optic vibration sensing monitoring host, an analysis host, y una plataforma de sistema de monitoreo de daños externos. Todo el equipo anfitrión está instalado en el mismo gabinete en la sala de comunicaciones de la subestación.. El host de monitoreo puede lograr un monitoreo en todo clima de los riesgos de daños externos a lo largo de cables de alto voltaje tendidos en la misma zanja utilizando un núcleo de fibra óptica monomodo de repuesto ya tendido en la tubería., que incluye cables ópticos comerciales de comunicación.. No es necesario instalar otra fibra óptica multimodo para transmitir y detectar señales de vibración..

1. No installation is required along the route, and one core of spare optical fiber from the communication optical cable is taken as the sensing and transmission channel to connect to the monitoring host;

2. No blind spots in the entire construction line, Lograr un seguimiento de los daños externos a los cables de alta tensión en toda la línea.;

3. The system architecture is simple, requiriendo solo la instalación de hosts de monitoreo y análisis en la sala de comunicaciones de la subestación, sin necesidad de instalar ningún sensor adicional en la línea;

4. A comprehensive warning system is in place. Cuando hay una maquinaria grande operando cerca del cable óptico, el sistema emitirá una advertencia y distinguirá los niveles de alarma según diferentes configuraciones de umbral. Si la maquinaria grande viaja cerca del cable óptico o se cruza con la ruta del cable óptico por un corto tiempo, the system will only record external damage hazards and will not issue warning messages;

5. It can identify the vibration signals of crushers, excavators, pipe jacking machines, exploration machines, martinetes, handheld machinery (such as air picks), and underground pipe threading operations. The movement and operation signals of large construction machinery can be accurately distinguished.