Track circuit primary parameter high-precision rapid ground measuring method and measuring apparatus thereof

A technology for track circuit and ground testing, which is applied to vehicle route interaction equipment, measuring devices, railway signals, etc., and can solve problems such as complex testing methods, inability to apply one-time parameter testing methods, and interference with driving operations.

Inactive Publication Date: 2004-09-15
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing track circuit primary parameter test method cannot be applied to all standard track circuit sections (especially non-insulated track circuit sections with compensation capacitors and wave limiters), the test method is complex, interferes with driving operations, and test accuracy Low and other shortcomings, the present invention will propose a ground test method suitable for all track circuit systems, simple, fast and high-precision test method

Method used

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  • Track circuit primary parameter high-precision rapid ground measuring method and measuring apparatus thereof
  • Track circuit primary parameter high-precision rapid ground measuring method and measuring apparatus thereof
  • Track circuit primary parameter high-precision rapid ground measuring method and measuring apparatus thereof

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Experimental program
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Embodiment Construction

[0103] 1. Specific implementation steps of the test method

[0104] (1) Track circuit section without compensation capacitor and wave limiter

[0105] Please refer to the schematic diagram of the primary parameter test circuit of the track circuit in Figure 1, randomly select a line with a distance of 41 in the track circuit section to be tested, and take the midpoint of this line as the origin O. The test steps are as follows:

[0106] The first step, please refer to figure 2 The schematic diagram of the first step of a parameter test of the track circuit. At the origin, the test signal source and the standard resistance R are connected by the test fixture J and the test line o Connected between two steel rails;

[0107] In the second step, please refer to image 3 Schematic diagram of the second step of a parameter test of the track circuit. At +l and -l, short-circuit the two rails through the test fixture and the short-circuit line;

[0108] The third step is to turn ...

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Abstract

The invention relates to a rail-circuit primary-parameter high-precision quick ground testing method and device, transmitting signal between rails and adopting two-end short circuit by short circuit line to make it, during testing, only testing six scalar voltage values, and then simply calculating to obtain the rail impedance and road residue impedance of the line. The testing device includes microprocessor, analogue quantity collecting channel, signal output channel, external memory and real time clock, and man-machine interface. It is simple and practical, high-precision, and wide-applied range, and has very small effect on train working. It does not need extra protective measures.

Description

technical field [0001] The invention relates to a testing method and testing equipment thereof, in particular to a high-precision and rapid ground testing method and testing equipment for primary parameters of a track circuit. The track circuit is an important infrastructure in the railway signaling system. It is used to generate and transmit information about whether the track is free and complete, and it is also an information transmission channel between signal machines and between ground equipment and locomotive equipment. The track circuit is a special circuit with two rails as conductors. Its transmission performance is mainly determined by two important primary parameters: rail impedance and ballast bed (leakage) resistance. The calculation and adjustment of the track circuit, as well as the design of equipment, etc., all need to be carried out based on the primary parameter value. Therefore, a parameter test is an important task to ensure the normal operation of railw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L1/02B61L1/18G01R27/02
Inventor 赵会兵赵明王永和赵林海
Owner BEIJING JIAOTONG UNIV
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