Graphical analysis method and system of test data of train control on-vehicle subsystem of CTCS (Chinese Train Control System)

Abstract

The invention discloses a graphical analysis method of test data of a train control on-vehicle subsystem of a CTCS (Chinese Train Control System), which comprises the following steps: querying the information of test variables in a test sequence for testing the train control on-vehicle subsystem of the CTCS from a database for storing the test data; analyzing key information from the information of the test variables, wherein the key information comprises the information transferred by the externally visible interface of the train control on-vehicle subsystem and the information for auxiliary analysis of the execution condition of the test sequence; and dynamically displaying the operating condition of the train control on-vehicle subsystem of the CTCS according to the change of the key information. The invention also discloses a graphical analysis system of test data of the train control on-vehicle subsystem of the CTCS. The invention can be used for analyzing the test data in real time, replaying the original data after testing and displaying the data in a graphical mode, thus the analysis of the data record can be read and judged easily, and errors in the testing process can be analyzed repeatedly.

Description

technical field [0001] The invention relates to the technical field of train communication control, in particular to a method and system for graphical analysis of test data of a CTCS train control on-board subsystem. Background technique [0002] As one of the key components and control objects of the train control system, in-vehicle equipment must be tested for interconnection and interoperability using an independent third-party test platform before going online to ensure complete functions and the ability to run across lines. Because the third-party interoperability test platform can only use the black box test method, the internal state of the device under test is invisible, and it can only collect and analyze data from the level of its visible interface, and finally draw a test conclusion. [0003] Under such conditions, the record of the test process is particularly important. At present, most of the third-party test processes of the key components of the train control...

AI Technical Summary

Problems solved by technology

[0005] On the one hand, when the train control system, especially the on-board subsystem, performs the test, the data transmission is large and the data volume is huge, and the test phenomenon occurs frequently and there are multiple visible interfaces, so that the phenomenon that may occur in personnel records is ignored, and more importantly, , the use of pure data records is very poor for external readability, especially the original data records can only be interpreted and analyzed by specialized system developers, and it is impossible for other industry experts who have not participated in the development to directly witness and analyze the test process. Even if the test data records are provided to experts, it is necessary to use specialized personnel to perform decoding and other tasks, which increases the workload of duplication; The records of some phenomena can only be reflected in the form of data and cannot be reproduced, which may cause problems such as ignoring key phenomena

This has great limitations for the train control system, which often requires some experienced experts on site to test and has special test requirements.

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