Test device and test method for C interface signals of lineside electronic unit (LEU)

Abstract

The invention discloses a test device and test method for C interface signals of a lineside electronic unit (LEU). The test device comprises a relay control module, a C1 signal processing module, a C6 signal processing module, a signal detection module and a serial communication interface (SCI) communication module, wherein the relay control module is used for adjusting load resistance input by the C interface signals; the C1 signal processing module is used for collecting C1 signals in the C interface signals which pass through the relay control module and processing the C1 signals; the C6 signal processing module is used for collecting C6 signals in the C interface signals which pass through the relay control module and processing the C6 signals; the signal detection module is used for detecting parameters of the C1 signals and parameters of the C6 signals and extracting message information and the error rate; and the SCI communication module is used for achieving communication between the C interface signal test device and an upper computer. Precision meters do not need to be prepared independently when the test device is utilized to test the C interface signals, and the C interface signals can be measured conveniently and rapidly; due to the fact that the test device is small in size and convenient to carry and power supply is simple, outdoor and trackside operation is facilitated, and the test device further has the advantages of being simple and convenient to operate and low in power consumption and cost and the like.

Description

technical field [0001] The invention relates to the field of railway communication signals, in particular to a C-interface signal testing device and a testing method of an LEU. Background technique [0002] The point transponder system has been widely used in the domestic CTCS system, passenger dedicated line, shunting protection system and CBTC system. Passive balise), where the interface between LEU and active balise is C interface, C1 interface and C6 interface are sub-interfaces of C interface respectively, LEU transmits train control information to active balise through C interface, but currently There is a lack of equipment specially used to test the output signal indicators of the C interface of the LEU. [0003] At present, the commonly used instrument for testing the output signal of the C interface of the LEU is an oscilloscope, but the oscilloscope is a precision instrument and requires an AC220V power supply. It requires more auxiliary test equipment and require...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used instrument for testing the output signal of the C interface of the LEU is an oscilloscope, but the oscilloscope is a precision instrument and requires an AC220V power supply. It requires more auxiliary test equipment and requires a large environmental space, especially inconvenient for outdoor and trackside operations.

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