Remote monitoring and early warning through the ground wire

Abstract

The invention discloses a remote monitoring early-warning through ground wire. The remote monitoring early-warning through ground wire comprises a cable core and a metal outer sheath arranged outside the cable core, wherein the cable core is formed by mutually twisting a plurality of metal conductors; monitoring sensors are arranged in the cable core; the monitoring sensors comprise a piezoelectric sensor and an optical fiber sensor; the piezoelectric sensor is positioned at the central position of the cable core, and the metal conductors are twisted on the periphery of the piezoelectric sensor; the optical fiber sensor is positioned on the periphery of the cable core and is adjacent to the inner wall of the metal outer sheath; the piezoelectric sensor comprises a steel wire rope, a piezoelectric film is adhered onto the steel wire rope, an inner sheath and a shielding layer are wrapped outside the piezoelectric film in sequence, and an outer sheath is extruded on the shielding layer. According to the remote monitoring early-warning through ground wire, the working condition of the ground wire can be monitored accurately, the ground wire is effectively prevented from being broken and damaged, the conversion of warning repair to prevention early-warning after the ground wire is broken is realized, and the ground wire is particularly applicable to comprehensive railway sharing wiring systems with the requirements of high reliability and high safety.

Description

technical field [0001] The invention relates to a grounding cable used in a comprehensive railway grounding system, in particular to a through ground wire capable of remote monitoring and early warning. Background technique [0002] The railway through-ground wire system is a grounding system that connects the traction power supply return system, power supply system, signal system, communication and other electronic information systems along the track, as well as bridges, platforms, ballast beds and other devices that need to be grounded through the through-ground wire. , forming an equipotential body of a common grounding system. It is a key facility to ensure the safety of railway traffic and realize the digitalization and intelligence of high-speed trains, heavy loads, and communication signal technology. It is one of the cutting-edge technology products in the field of rail transit technology. [0003] The railway through-ground wire ensures the equipotential of the whol...

AI Technical Summary

Problems solved by technology

However, no matter the alarm line of a single insulated wire or two insulated wires, it can only make an alarm response after the through-ground wire breaks, but cannot monitor the real-time situation of the through-ground wire, especially the main reason for the breakage of the through-ground wire cannot be monitored and controlled. ——Changing state of pulling force

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