Online monitoring device for anchor sections of overhead lines

Abstract

The invention discloses an online monitoring device for anchor sections of overhead lines. The device comprises a first host 1, a first slave 2, a second host 3 and a second slave 4. According to thedevice, through a micro-electro-mechanical acceleration sensor, a distance measuring sensor, a temperature and humidity sensor, a satellite data receiving module, a wireless communication module, a wireless networking module and a radar module, the height change of a balance weight string of an overhead line compensator is monitored in real time, the overhead line acceleration value change, hard point change, oscillation amplitude change, disconnection and compensator lag fault information and ambient temperature and humidity, position and time information are monitored in real time, and the data is preprocessed and then sent to a cloud data analysis and processing center, so that a support is provided for an overhead line maintenance mechanism. According to the device, the problems that the states of the overhead lines cannot be acquired in a full time period in vehicle detection and artificial patrol modes and the feedback speed is low are solved, so that the maintenance work is moretargeted and the efficiency is higher, and thus the quality of a tractive power supply system is improved, and the train operation safety is improved.

Description

Technical field [0001] The invention relates to an online monitoring device for the catenary status, in particular to an online monitoring device for the catenary anchor section status of an electrified railway. Background technique [0002] The catenary is responsible for the important task of providing electrical energy for electric locomotives, and its operating status directly affects the transportation capacity and safety of electrified railways. Due to the particularity of the catenary, it is determined that it is laid out in the open air and has no backup. The catenary itself is complicated. At the same time, its layout in geographical space is cross-regional and cross-climatic, and requires continuous work in the plains and hills. In complex geographic environments such as mountains, mountains and other natural environments such as wind, frost, rain, snow and other natural environment interference and erosion, if there is no real-time method to monitor the health of the c...

AI Technical Summary

Problems solved by technology

Second, due to the influence of natural wind, in extreme cases, catenary resonance will be caused, the contact line will swing violently, the guide height and pull-out value will exceed the design safety value, and the compensation device will also lose its function

The third is the metal fatigue damage of the catenary, and the catenary is suddenly disconnected, causing the power supply arm of the catenary to be cut off and the locomotive to be out of service

Fourth, the compensation device of the anchor section of the catenary is stuck, the catenary loses its elasticity, and cannot maintain the required range of design tension, resulting in a pantograph-catenary accident

These monitoring methods provide a basic guarantee for the normal operation of the catenary, but these two types of methods belong to periodic planned monitoring, which cannot be real-time, and cannot obtain dynamic data of the catenary all-weather and at all times. Many causes of catenary failure cannot be monitored. It is impossible to accurately determine the real cause of the fault, which also brings uncertainty and blindness to the maintenance work of the catenary, and cannot achieve efficient maintenance and troubleshooting, which brings hidden dangers to safe driving

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