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Testing system and method for interference resistance of cab signaling equipment

A locomotive signal and test system technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of locomotive signal equipment interference, no clear data, and complicated service life, and achieve efficient and convenient viewing, analysis, and testing The operation process is simple and the effect is convenient to carry

Active Publication Date: 2014-03-26
BEIJING JIAODA SIGNAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unbalanced return flow of the traction current, and the large harmonic interference in the traction current, and the harmonic interference is the interference that may invade the signal frequency band, the in-band interference signal is superimposed on the effective track circuit signal, thus affecting The locomotive signal equipment produces interference. For the locomotive signal reception, the interference outside the signal frequency band is easy to protect, and the interference in the same frequency band of the signal is more serious.
[0003] At present, the types, models, and service years of electric locomotives in my country's railways are relatively complicated. How much harmonic interference is generated? The situation is very complicated, and there is no clear data. It is necessary to test the anti-interference ability of locomotive signal equipment
However, there is currently no relatively simple and quick device or method that can directly test the anti-interference ability of locomotive signal equipment

Method used

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  • Testing system and method for interference resistance of cab signaling equipment
  • Testing system and method for interference resistance of cab signaling equipment
  • Testing system and method for interference resistance of cab signaling equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0022] The invention provides a test system for the anti-interference ability of locomotive signal equipment, such as figure 1 As shown, the test system includes an upper computer control device and a test device, wherein the upper computer control device automatically generates a test sequence according to the test type selected by the user, and at the same time calculates the parameter value corresponding to the test sequence, and sends it to the test device Send control commands, and then judge the anti-interference ability of the signal equipment of the tested locomotive according to the received test data;

[0023] The test device receives the control command sent by the upper computer control device, generates a mixed frequency signal to output to the tested locomotive signal device, and receives the test data returned by the tested locomotive signal device and forwards it to the upper computer control device.

[0024] Specifically, such as figure 2 As shown, the upper...

Embodiment 2

[0042] The embodiment of the present invention also provides a method for testing the anti-interference ability of locomotive signal equipment, such as Figure 6 As shown, the test method includes:

[0043] The host computer control device automatically generates a test sequence according to the test type selected by the user through the human-computer interaction interface, and at the same time calculates the parameter value corresponding to the test sequence, and sends a control command to the test device;

[0044] After receiving the control command, the test equipment generates a mixed frequency signal and outputs it to the tested locomotive signal equipment, and receives the test data returned by the tested locomotive signal equipment and forwards it to the upper computer control equipment;

[0045] The host computer control device then judges the anti-interference capability of the signal equipment of the locomotive under test according to the received test data.

[004...

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Abstract

The invention discloses a testing system and method for the interference resistance of cab signaling equipment, and belongs to the field of railway signaling. The testing system comprises upper computer control equipment and testing equipment, wherein the upper computer control equipment is used for automatically generating a testing sequence according to testing types selected by a user, calculating parameter values corresponding to the testing sequence, transmitting control commands to the testing equipment and judging the interference resistance of the tested cab signaling equipment according to received testing data, and the testing equipment is used for receiving the control commands transmitted by the upper computer control equipment, generating frequency mixing signals, outputting the frequency mixing signals to the tested cab signaling equipment, receiving the testing data returned by the tested cab signaling equipment and forwarding the testing data to the upper computer control equipment. By the testing system and method, the cab signaling equipment can be variously tested, the testing sequence can be automatically generated, the parameter values needed by testing are calculated, the cab signaling equipment is automatically tested, testing results and testing progress can be displayed in real time, the testing system is convenient to carry, and the testing operation process is simple.

Description

technical field [0001] The invention belongs to the field of railway signals, in particular to a system and method for testing the anti-interference ability of locomotive signal equipment. Background technique [0002] The locomotive signal equipment includes JT1-CZ2000 locomotive signal, TCR and other equipment that can receive track circuit signals. Through the principle of electromagnetic induction, the current signal in the track circuit carrying the occupancy information of the front track is converted into a voltage signal, and the voltage signal is analyzed and translated. coded equipment. Due to the unbalanced return flow of the traction current, and the large harmonic interference in the traction current, and the harmonic interference is the interference that may invade the signal frequency band, the in-band interference signal is superimposed on the effective track circuit signal, thus affecting The locomotive signal equipment produces interference. For the locomo...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 赵明陈军辉唐凯
Owner BEIJING JIAODA SIGNAL TECH
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