Railway signal cable insulation online detecting method and system

A cable insulation and railway signal technology, applied in the direction of testing dielectric strength, etc., can solve the problems of poor safety and low accuracy, and achieve the effect of improving safety, shortening detection time, and ensuring the safety of signal cables

Inactive Publication Date: 2017-12-22
MIANYANG WEIBO ELECTRONICS
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Problems solved by technology

[0009] The invention provides a method and system for on-line detection of railway signal cable insulation, which solves the technical problems of low detection efficiency, low accuracy and poor safety in the existing off-line detection of railway signal cable insulation, and realizes high efficiency, accuracy and safety The technical effect of completing the on-line inspection of railway signal cable insulation

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  • Railway signal cable insulation online detecting method and system
  • Railway signal cable insulation online detecting method and system
  • Railway signal cable insulation online detecting method and system

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Embodiment Construction

[0048] The invention provides a method and system for on-line detection of railway signal cable insulation, which solves the technical problems of low detection efficiency, low accuracy and poor safety in the existing off-line detection of railway signal cable insulation, and realizes high efficiency, accuracy and safety Complete the technical effect of on-line inspection of railway signal cable insulation.

[0049] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0050]In the following description, many specific details are set forth in order to fully understand the present invention. H...

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Abstract

The invention discloses a railway signal cable insulation online detecting method and a railway signal cable insulation online detecting system. The railway signal cable insulation online detecting method comprises the steps that: a power module generates an isolated DC constant-voltage source as a standard voltage source for testing; a control module controls a binary tree type relay network to conduct a gating operation, and gates a cable core wire to be detected as a detected object; an optocoupler isolation sampling circuit acquires a voltage signal after an insulation resistor of the cable core wire to be detected is subjected to voltage division, and obtains a value of the insulation resistor through filtering conditioning and numerical calculation. The railway signal cable insulation online detecting method and the railway signal cable insulation online detecting system solve the technical problems of low detection efficiency and accuracy rate of the existing railway signal cable insulation offline detection, and achieve the technical effect of completing railway signal cable insulation online detection efficiently and precisely.

Description

technical field [0001] The invention relates to the field of railway signal cable detection, in particular to an on-line insulation detection method and system for railway signal cables. Background technique [0002] Railway signal cables are suitable for transmission of railway signals, audio signals or control circuits for automatic signal devices with a rated voltage of AC 500V or DC 1000V and below. The integrated sheath and aluminum sheath railway signal cables have certain shielding performance and are suitable for electrification sections. Or laying in other areas with strong electrical interference. [0003] Railway signal cable products also have multiple signal functions such as broadband network, IPTV, transmission telephone, fax, videophone, anti-theft alarm, etc. With the rapid development of intelligent buildings, computer industrialization and information highway projects, people are more concerned about The demand and dependence of office informatization and...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 刘胜涛雍鸿程倪伟易黎丽罗志豪刘万山
Owner MIANYANG WEIBO ELECTRONICS
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