Urban comprehensive pipeline corridor, including communication, power, water supply, drainage, heating, gas and other pipelines, is the lifeline of the city. Optical fiber vibration early warning system can realize all-round, real-time on-line monitoring, real-time alarm, accurate positioning, and greatly improve the rapid response and safety control ability of the operation and management of urban underground comprehensive pipeline gallery
Urban integrated corridor is the strategic direction of smart city's future infrastructure construction. Urban underground pipeline facilities, including communication, electricity, water supply, drainage, heating, gas and so on, extend thousands of kilometers and become the lifeline of the city along with the large-scale construction and development of the smart city.
Security Situation of Underground Pipe Corridors
At the present stage, various hidden dangers of underground pipelines are also exposed, such as broken optical cables, leakage of data information, fire, explosion, collapse, waterlogging, gas breakdown, water cut, power cut and so on. The manhole covers of municipal ditches are a headache for city managers. Thieves can steal and destroy through opening the manhole cover into the pipeline.
Application of optical fiber vibration early warning system in underground pipe gallery
In view of the problems of underground pipeline safety monitoring and well cover management, the vibration optical fiber early warning system provided by our company can directly use the existing optical cable channels in urban underground pipelines to achieve intelligent safety monitoring, and through a simple vibration trigger device installed at the well cover position, realize the safety protection for the well cover.
Characteristics of the System
All weather monitoring work for 7*24 hours continuously for more than 15 years.The detection rate of single trigger (touch cable, manual excavation, mechanical construction, etc.) is higher than 99.7%, and that of multiple triggers is equal to 100%.Metal-free special optical cables are used as distributed sensors, without any signal radiation, and do not interfere with electromagnetic, radio frequency, wireless signals, high-voltage electrostatic fields and other signal fields.
A miniature vibration optical fiber induction device is installed on the well cover, which can alarm the intrusion behavior when it touches the well cover in time. It can connect one end of the system directly to the existing optical cable and detect the intrusion into the corridor at a distance of 80 km along the cable.
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