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LEU complete machine automatic test system

A technology of automated testing and complete machine testing, which is applied in software testing/debugging, faulty hardware testing methods, error detection/correction, etc. It can solve problems such as test environment setup and long test time, low test efficiency, and missing key parameters. Achieve the effect of improving test efficiency and test reliability

Pending Publication Date: 2020-09-29
黄骅市交大思诺科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are disadvantages in this test method: (1) It is impossible to accurately measure the relevant parameters of the C interface; (2) The number of test equipment required is large and the connection is complicated; (3) The test environment is built and the test time is long; resulting in low test efficiency and Key parameters are missing; (4) most of them use special equipment, and the maintainability of the equipment is poor

Method used

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  • LEU complete machine automatic test system
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  • LEU complete machine automatic test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 C-interface signal quantization test solution.

[0037] Compared with the existing LEU C interface test method, the quantifiable test method of the LEU C interface realizes the quantitative test of the LEU C interface data, solves the shortcomings of the existing test method that cannot quantify the C interface test points, and can improve the measurement of the product readiness and reliability.

[0038]The realization principle is: LEU C interface signal processing: the LEU C interface signal processing mechanism is composed of C interface switching device, oscilloscope, and advanced language analysis software (such as MATLAB analysis software), and different C interface data are measured by oscilloscope, and analyzed by MATLAB The software will model and analyze the measurement data and finally generate the specific parameters of the required test points to complete the test.

[0039] The specific implementation methods are as follows: (1) C6 interface ...

Embodiment 2

[0041] Embodiment 2 Message Consistency Test Scheme for LEU Machine Test

[0042] The existing message test method: the S interface provides message information to the LEU, and outputs it to the transponder through the C interface, and transmits the response to the vehicle equipment for DBPL code comparison. This test method requires a large number of special peripherals to support. It is inconvenient for equipment maintenance; while the general test scheme for message consistency of LEU machine test uses standard equipment for analysis, which is convenient for equipment maintenance.

[0043] The realization principle is: the message consistency test of the LEU whole machine test is composed of an oscilloscope, a C interface switching device, MATLAB analysis software, and the LEU whole machine test software; the waveforms at both ends of the 120Ω resistor are collected by the oscilloscope and analyzed by the MATLAB analysis software , and finally compare the consistency with t...

Embodiment 3

[0045] The third embodiment is applicable to the design scheme of the S-interface simulation system for LEU complete machine testing compatible with LEU-P, LEU-S transparent transmission, and LEU-S non-transparent transmission.

[0046] The existing LEU overall S-interface test needs to be tested with two different systems, LEU-P and LEU-S, which increases the number of test tools and maintenance costs. The S interface test of LEU-P and LEU-S is integrated to meet the test of different LEU types such as LEU-P, LEU-S transparent transmission, and LEU-S non-transparent transmission, while reducing the number of LEU test tools and maintenance costs.

[0047] The realization principle is: the LEU_S interface general simulation system is the train control simulation system. The LEU_S interface general simulation system is composed of the LEU machine test software and the relay switching device. It can be selected and loaded with different input conditions by selecting the LEU type. ...

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Abstract

According to the LEU complete machine automatic test system, complete machine test software provides switching among various input conditions for an LEU by controlling a programmable power supply, a relay switching device and a C interface switching device; LEU output collects information through an oscilloscope, high-level language analysis software is used for analysis, and monitoring software is used for monitoring; and finally, various test results through the complete machine test software are summarized to form a report, thereby realizing automatic test of the LEU complete machine. The system and the method have the advantages that the system and the method can be used for detecting LEU-P and LEU-S, various tests are automatically completed, and a test report is generated, so that the test efficiency and the test reliability are greatly improved; C interface data is automatically analyzed through an MATLAB software analysis method, and the C interface data can be quantified.

Description

technical field [0001] The invention relates to the field of railway signal communication, in particular to a LEU complete machine automatic test system. Specifically, it is an automatic whole system suitable for Lineside Electronic Unit-Parallel (abbreviated LEU-P) and ground electronic unit (serial port type) (Lineside Electronic Unit-Serial, abbreviated LEU-S). Machine function and performance test system. Background technique [0002] The ground electronic unit (Lineside Electronic Unit, abbreviated as LEU) is currently widely used in CTCS and CBTC train control systems, bullet train depot (station) shunting protection systems, Beijing-Tianjin intercity train control systems, and transponders (including active transponders and passive transponders) Source transponder), train control system and train control on-board interrogator together form a point transponder system. [0003] After the production and assembly of LEU, the whole machine test needs to be carried out. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22G06F11/36
CPCG06F11/221G06F11/2273G06F11/2205G06F11/3688
Inventor 李稳民邓晨赵阳
Owner 黄骅市交大思诺科技有限公司