A method and device for early warning of node faults in urban rail catenary
A technology of fault warning and urban rail, which is applied in the direction of material defect testing, etc., can solve the problems of subway operation interruption and economic loss, and achieve the effect of reducing search, reducing economic loss and ensuring safe operation
Active Publication Date: 2019-07-12
SHENZHEN FULINTECH SCI & TECH
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Problems solved by technology
Once the subway catenary fails, it will lead to the interruption of subway operation and cause major economic losses
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[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0039] An urban rail catenary node fault early warning device includes an infrared detection module and a fault early warning module, the infrared detection module collects the infrared thermal image and temperature data of the key node 11 of the catenary after the train passes by, and the fault early warning module receives the wireless transmission of the infrared detection module Infrared thermal image and temperature data, and fault warning. The catenary key nodes 11 include catenary segment insulators, insulating rods, positioning line clamps and other catenary nodes.
[0040] S...
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The invention relates to an urban rail contact network node failure early warning method and a device. The urban rail contact network node failure early warning method comprises following steps: 1, the number of trains passing by contact network nodes is counted, when the number reaches a preset counting threshold value, an infrared thermal imager is turned on, and is used for collecting infrared thermal imaging pictures and temperature data of contact network key nodes after passing by of the trains, and after collection, the number is reset to zero and the infrared thermal imager is turned off; 2, node internal defect area is obtained based on the infrared thermal imaging pictures and the temperature data; and 3, node failure early warning is carried out based on the proportion of the node internal defect area in node total area. Compared with the prior art, the urban rail contact network node failure early warning method can be used for discovering node failure and hidden trouble in time, determining the positions of node failure and hidden trouble accurately, reducing time used for looking for failure points, and ensuring metro safe operation effectively.
Description
technical field [0001] The invention relates to the field of urban rail transit traction power supply systems, in particular to an urban rail catenary node failure early warning method and device. Background technique [0002] With the rapid development of the economy, the pace of urbanization is gradually accelerating, and urban traffic is becoming more and more worthy of consideration. As a modern and fast means of transportation, the subway plays an important role in the development of the city. Among them, the power supply system is an important part of urban rail transit. The reliable and safe power supply of the power supply system ensures the normal operation of the subway. The subway power supply system consists of two parts: one part is the high-voltage power supply system (external power supply), that is, the urban power grid, which often has three power supply modes: centralized, decentralized and hybrid; the other part is the internal power supply system of the ...
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IPC IPC(8): G01N25/72
CPCG01N25/72
Inventor 杨俭袁天辰林小松
Owner SHENZHEN FULINTECH SCI & TECH