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 auxiliaryanalysis 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 beanalyzed repeatedly.

Description

technical field [0001] The invention relates to the technical field of train communication control, in particular to a method and system for graphically analyzing 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 with an independent third-party test platform before it goes online in order to ensure its complete functions and the ability to operate across lines. Since the third-party interconnection test platform can only use the black box test method, it is invisible to the internal state of the device under test, and 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, in the third-party test process of most key components of the train control system, ...

AI Technical Summary

Problems solved by technology

[0005]On the one hand, when the train control system, especially the on-board subsystem, performs tests, there are many data transmissions and a huge amount of data, frequent test phenomena and 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 cannot make other unidentified Experts in the industry who participated in the development directly witness and analyze the test process. Even if the test data records are provided to the experts, special personnel are required to perform decoding and other work, which increases the workload of duplication; on the other hand, from the perspective of post-test analysis That is to say, the data source of the analysis is the data stored in the tables in the database. The records of some phenomena can only be reflected in the form of data, which 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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