Cable tunnel multistate on-line monitoring system based on fiber grating sensing

Abstract

The invention provides a cable tunnel multistate on-line monitoring system based on fiber grating sensing. The on-line monitoring system comprises a communication cable, a fiber grating gate control sensor, a fiber grating well cover sensor, a fiber grating liquid level sensor and a fiber grating temperature sensor, wherein the fiber grating gate control sensor, the fiber grating well cover sensor, the fiber grating liquid level sensor and the fiber grating temperature sensor are respectively connected with the communication cable, the communication cable is connected with a host machine by a fiber grating demodulator, and the host machine is connected with a central control system by a network. The on-line monitoring system has the advantage that a fiber grating sensing technique is used for supporting, a fiber network technique is combined, the multistate parameter monitoring in the cable tunnel is integrated into an united management platform, and a fully new cable tunnel state real-time monitoring, operation and maintenance management mode is formed, so the accident prevention of the cable tunnel and the safe and reliable power supplying of a cable internet are ensured, and the intelligence of the production and running management and the command decisions of an electric network is realized.

Description

technical field [0001] The invention relates to a multi-state integrated monitoring system, in particular to a multi-state online monitoring system for cable body, environment monitoring and tunnel security based on optical fiber grating sensing technology. Background technique [0002] The use of cable tunnels is an important measure to meet the high load density and cable-based power supply requirements in central urban areas, effectively guarantee the transmission capacity of power channels and improve the utilization of channel resources. With the rapid development of urban power cable tunnels, the requirements for maintenance, monitoring and management of power cable tunnels are gradually increasing. The modern monitoring system integrating intelligence and unmanned has gradually replaced the original traditional management mode. Advanced technology and equipment will provide technical support and guarantee in more fields for the operation and maintenance of power cable...

AI Technical Summary

Problems solved by technology

Patent No. 201010182962.5 "A Comprehensive Control System for Cable Tunnel" monitors the temperature, liquid level, lighting control and other conditions in the cable tunnel, but the electrical principle sensor used in this technology cannot be used in the harsh cable tunnel environment. The service life of the sensor, the on-site power acquisition of the sensor, and the system networking are all greatly restricted.

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