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LEU test bench system and test method and calibration method thereof

A technology of test bench and test box, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., and can solve the problem of less functions of LEU test benches

Inactive Publication Date: 2021-08-31
山西润泽丰科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main function of the LEU test bench is to test whether the function and output characteristics of the LEU equipment meet the standard. The current LEU test bench has fewer functions.

Method used

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  • LEU test bench system and test method and calibration method thereof
  • LEU test bench system and test method and calibration method thereof
  • LEU test bench system and test method and calibration method thereof

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Embodiment Construction

[0028] Combine below Figure 1-6 The present invention is further described, but the protection scope of the present invention is not limited to the content.

[0029] For the sake of clarity, not all features of an actual embodiment are described. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention with unnecessary detail and should be considered in the development of any actual embodiment. , a great deal of implementation detail must be worked out to achieve the developer's specific goals, such as changing from one embodiment to another in accordance with system-related or business-related constraints, and it should also be recognized that such development work may be complex and time-consuming Yes, but just routine work for those skilled in the art.

[0030] A LEU test bench system, which is composed of a computer and a test box, the test box is equipped with an ARM processor, an interface S...

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Abstract

The invention discloses an LEU test bench system and a test method and a calibration method thereof. The LEU test bench system is composed of a computer and a test box, the test box is internally provided with an ARM processor, an interface S simulation device, a C interface message read-write device, an impedance switching device and a test interface, the ARM processor is connected to the interface S simulation device, and the interface S simulation device is connected to an LEU; the interface S simulation device is connected with the computer, the LEU is connected with the impedance switching device, and the ARM processor is connected with the impedance switching device; the impedance switching device is connected with the test interface, the test interface is connected with the C interface message read-write device, and the C interface message read-write device is connected with the ARM processor; the test interface is connected with an oscilloscope and an attenuator, the oscilloscope is connected to the computer, and the attenuator is connected to a network analyzer. The advantages of the present invention are that whether the functions and output characteristics of an LEU device meet standards or not can be tested, the functions of reading and writing LEU default messages and testing an LEU single board are realized, and the production and debugging are convenient.

Description

technical field [0001] The invention relates to a LEU test bench system, a test method and a calibration method thereof, and belongs to the technical field of LEU test benches. Background technique [0002] With the increasing speed of trains, only relying on the way of sending blockage information to on-board equipment by track circuits can no longer meet the requirements of safe high-speed train running in terms of information volume. It is necessary to increase transponder equipment to provide a large number of fixed information and variable information. LEU is a data acquisition and processing unit, which is connected to the train control center through a serial communication interface or other interfaces, periodically receives the real-time changing messages or information sent by the train control center, and continuously sends reports to the active transponder arts. In order to ensure the normal operation of the LEU equipment, it is necessary to test the LEU after t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R35/02
CPCG01R31/00G01R35/02
Inventor 范文龙
Owner 山西润泽丰科技股份有限公司
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