Fuzzy rough set and decision tree-based track circuit red light strip fault positioning method

A fuzzy rough set, track circuit technology, applied in electrical digital data processing, character and pattern recognition, special data processing applications, etc., can solve problems such as failure to meet the requirements of track circuit fault diagnosis

Inactive Publication Date: 2016-12-07
CHINA RAILWAYS CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity and uncertainty between the fault symptoms, fault modes and fault mechanism of the track circuit, a single diagnostic method cannot meet the requirements of track circuit fault diagnosis.

Method used

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  • Fuzzy rough set and decision tree-based track circuit red light strip fault positioning method
  • Fuzzy rough set and decision tree-based track circuit red light strip fault positioning method
  • Fuzzy rough set and decision tree-based track circuit red light strip fault positioning method

Examples

Experimental program
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Effect test

Embodiment

[0065] Diagnose the "red light band fault" of the ZPW-2000A track circuit.

[0066] image 3 Shown is the composition diagram of ZPW-2000A track circuit system equipment, which is mainly composed of transmitter, receiver, attenuator, lightning protection unit, cable simulation network, SPT cable, compensation capacitor, matching transformer, and tuning in the electrical insulation section. Units and air-core coils and other equipment. The diagnostic scheme for the "red light band fault" of the ZPW-2000A track circuit is implemented as follows:

[0067] 1) Determine the initial decision table:

[0068] first as image 3 As shown, from the perspective of track circuit system equipment-level faults, the phenomenon of red light belt faults in track circuit sections is analyzed. The indoor signal equipment in each track circuit section is assembled on the corresponding combination frame. As long as the approximate location of the fault is located It is easy to detect the specif...

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Abstract

The invention discloses a fuzzy rough set and decision tree-based track circuit red light strip fault positioning method. The method mainly comprises the following steps of: 1) establishing an initial decision table; 2) carrying out fuzzy discretization on continuous fault feature attributes to establish a fuzzy decision table; 3) inputting fault sample training data to obtain a reduced decision table; 4) establishing a diagnosis decision tree model; 5) inputting measured data into the diagnosis decision tree model, carrying out calculation to obtain a fault diagnosis result, inputting the measured data into a diagnosis positioning decision tree model, carrying out preliminary judgement to obtain a fault positioning result, judging faults of specific equipment by combining expert experiences, and giving corresponding fault maintenance suggestions. The method can rapidly and correctly position fault points of uninsulated frequency shift track circuit red light strip faults, greatly reduce the blindness and complexity of fault diagnosis, have relatively good rule explanation and relatively good robustness, improve the fault positioning speed and correctness and provide a new fault positioning technological means for intelligent fault diagnosis of track circuits.

Description

technical field [0001] The present invention relates to the field of fault handling of railway signal equipment, and relates to a ZPW-2000A type non-insulated track circuit fault diagnosis method, specifically a ZPW-2000A type non-insulated frequency-shifting track based on fuzzy rough sets and decision trees Circuit red light with fault intelligent positioning method. technical background [0002] Track circuit is an important basic equipment of modern high-speed railway signaling system. It is used to monitor track occupancy and transmit train operation control information to ensure train operation safety. It is the key maintenance object of the electric department. At present, the ZPW-2000A non-insulated frequency-shifting track circuit is widely used in passenger dedicated lines and high-speed railways in my country due to its strong anti-interference ability, long transmission length, high transmission safety, and easy traction return, and has been established as a The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06K9/62
CPCG16Z99/00G06F18/24G06F18/214
Inventor 王小敏朱文博江磊郭进
Owner CHINA RAILWAYS CORPORATION
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