CN102004488B - Method and system for graphical analysis of test data of CTCS train control on-board subsystem - Google Patents

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

Method and system for graphical analysis of test data of CTCS train control on-board subsystem

technical field

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. the

Background technique

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. the

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, most of them focus on the most original data recording of the transmission data of each interface in the test. As for the sequence execution, the behavior phenomenon of the device under test, the execution scene of the device under test, etc., it is usually recorded or photographed by personnel, or reversely inferred from the recorded data after the test. the

The background technology has the following defects:

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. the

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is: how to realize the real-time analysis of the test data of the CTCS train control vehicle sub-system and the replay analysis of the tested data, and how to display the test data more vividly and intuitively. the

(2) Technical plan

In order to solve the above-mentioned technical problems, the present invention provides a graphical analysis method for test data of CTCS train control vehicle-mounted subsystem, comprising the following steps:

S1: Query the information of the test variables in the test sequence for testing the CTCS train control on-board subsystem from the database storing the test data;

S2: Analyze the key information from the information of the test variables, the key information includes: the information transmitted by the externally visible interface of the on-board train control subsystem and the information for auxiliary analysis of the execution of the test sequence, the on-board train control subsystem externally It can be seen that the information transmitted by the interface includes: wireless messages, train action information, transponder information and track circuit information; the information for auxiliary analysis of test sequence execution includes: section occupancy information, key step description information for test sequence execution;

S3: Displaying the operation status of the CTCS train control on-board subsystem according to the change of the key information. the

Wherein, when the test information of the CTCS train control vehicle subsystem is analyzed in real time, the step S1 specifically includes:

S11: Query the current test sequence from the database storing the test data, the test sequence is composed of the execution steps in the CTCS train control on-board subsystem according to the agreed execution order;

S12: Judging whether the test sequence is the same as the test sequence of the previous query, if different, then reset the test variable, and re-query, if the same, then perform step S13;

S13: Query the information of the variables in the test sequence in real-time in the data table of the database every predetermined time period, and the real-time query includes:

First query the information in the database corresponding to each data table that stores the visible interface of the CTCS train control on-board subsystem. The information includes: track circuit information, train interface information, wireless messages, train speed and transponder information, wherein the transponder information It is to query the transponder sequence data table according to the real-time position of the train to obtain the current passing transponder information;

Secondly, query the data table storing the description information of the key steps of the test sequence in the database. The key steps are the steps that this test focuses on in the test sequence, and the text information describing the purpose and expected results of the key steps is the key step description information. the

Wherein, the real-time query method of the step S13 is:

Query the data table every 50ms to determine whether the data table is empty or the modification time of the data table is the same as the modification time of the last query. If it is empty or the same, ignore the result of this query and enter the next query, otherwise, Record the content of this query. the

Wherein, when performing non-real-time analysis on the test information of the CTCS train control vehicle subsystem, the step S1 specifically includes:

S14: sort the test variables according to the recording time of the variables in the test sequence in the data table and the place where the event represented by the variable occurs;

S15: Read the information of the test variable from the data table. the

Wherein, the sorting method in the step S14 is:

Prioritize the test variables with a fixed order to form a sorting framework, and then insert and locate other test variables according to the time and place where the event represented by the variable occurs. the

Wherein, the step S3 specifically includes:

Dynamically display the key step description information in the test sequence in text mode;

Graphic elements are used to dynamically display the basic state of the CTCS train control on-board subsystem, train interface actions, wireless message interaction, transponder information and track circuit information;

Dynamically display wireless message content in text form;

Dynamically display the ground equipment information interacting with the CTCS train control on-board subsystem. the

Among them, the following steps are also included in the display:

Realize the movement of the background pattern according to the speed of the train;

Set the delay constant for the pattern or information to be displayed. When the pattern or information appears, the delay constant will be increased by 1 in each cycle. After adding to the predetermined value, the pattern or information will be invisible and the delay constant will be reset;

Set the direction mark for the directional pattern, and change the layout position according to the change of the direction mark of the directional pattern for the non-directional pattern. the

The present invention also provides a graphical analysis system for the test data of the CTCS train control vehicle subsystem, including:

The test data acquisition module is used to query the information of the test variables in the test sequence for testing the CTCS train control on-board subsystem from the database storing the test data;

The test data analysis module is used to analyze the key information from the information of the test variables, the key information includes: the information transmitted by the externally visible interface of the train control vehicle subsystem and the information for assisting in the analysis of the execution of the test sequence. The information transmitted by the externally visible interface of the control vehicle subsystem includes: wireless messages, train action information, transponder information and track circuit information; the information for auxiliary analysis of the execution of the test sequence includes: interval occupancy information, current execution step information of the test sequence ;

The test data display module is used to display the operation status of the CTCS train control vehicle subsystem according to the change of the key information. the

Wherein, the test data acquisition module includes a real-time data acquisition module, specifically including:

The test sequence real-time query module is used to query the current test sequence from the database storing the test data, and the test sequence is composed of the execution steps in the CTCS train control vehicle subsystem according to the agreed execution order;

A test sequence judging module, used to judge whether the test sequence is the same as the test sequence of the previous query, if different, reset the test variable, and re-query, if the same, execute the test sequence query module;

Test variable real-time query module: used to query the information of the variables in the test sequence in real-time in the data table of the database every predetermined time period, and the real-time query includes:

First query the information in the database corresponding to each data table that stores the visible interface of the CTCS train control on-board subsystem. The information includes: track circuit information, train interface information, wireless messages, train speed and transponder information, wherein the transponder information It is to query the transponder sequence data table according to the real-time position of the train to obtain the current passing transponder information;

Secondly, query the data table storing the description information of the key steps of the test sequence in the database. The key steps are the steps that this test focuses on in the test sequence, and the text information describing the purpose and expected results of the key steps is the key step description information. the

Wherein, the test data acquisition module also includes a non-real-time data acquisition module, specifically including:

The test variable sorting module is used to sort the test variables according to the recording time of the variables in the test sequence in the data table and the place where the events represented by the variables occur;

The test variable reading module is used to read the information of the test variable from the data table. the

Wherein, the test data display module includes:

The key step information display module is used to dynamically display the key step description information in the test sequence in text mode;

The on-board subsystem information display module is used to dynamically display the basic state, train interface action, wireless message interaction, transponder information and track circuit information of the CTCS train control on-board subsystem with graphic elements;

The wireless information display module is used to dynamically display the wireless message content in text mode;

The ground information display module is used to dynamically display the ground equipment information interacting with the CTCS train control vehicle subsystem. the

(3) Beneficial effects

The method and system of the present invention collect and analyze the test data in real time, and introduce an image display mode to convert the single data in the past into various image changes and indications. The shortcomings of unreadable real-time data caused by too much and frequent updates make the test data process clearly and graphically displayed to testers and non-testers; the past data can be played back after the test is over, so that The analysis of data records is easy to read and judge, and the errors in the test can be analyzed repeatedly, and finally assists the generation of test results. the

Description of drawings

Fig. 1 is the CTCS train control vehicle-mounted subsystem test data graphical analysis method flowchart of the embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a graphical analysis system for test data of a CTCS train control vehicle subsystem according to an embodiment of the present invention. the

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. the

As shown in Figure 1, it is a flow chart of the graphical analysis method for CTCS train control on-board subsystem test data, including steps:

Step S101, query the information of the test variables in the test sequence for testing the CTCS on-board sub-system of train control from the database storing the test data. the

Specifically, when the test information of the CTCS train control on-board subsystem needs to be analyzed in real time, the current test sequence is queried from the database storing test data, and the test sequence is determined by the execution steps in the CTCS train control on-board subsystem according to the agreement The order of execution constitutes. Judging whether the test sequence is the same as the test sequence inquired last time, if not, then reset the variable and inquire again, otherwise, execute the next step. The information of the variable in the test sequence is queried in real time in the data table of the database every predetermined time period, and the real-time query includes:

First query the information in the database corresponding to each data table that stores the visible interface of the CTCS train control on-board subsystem. The information includes: track circuit information, train interface information, wireless messages, train speed and transponder information, wherein the transponder information It is to query the transponder sequence data table according to the real-time position of the train to obtain the information of the currently passing transponder. The transponder information is special because the data records the moment when the transponder is received by the on-board equipment, so if it is still displayed according to this information If the transponder is used, the transponder will suddenly appear on the screen, affecting the display. Therefore, for the balise information, it is necessary to obtain the distance that each balise should appear in advance according to the line data, so that the balise appears on the display in advance, and the information in the record appears as correction information, so as to better realize the balise information display. the

Secondly, query the data table storing the description information of the key steps of the test sequence in the database. The key steps are the steps that this test focuses on in the test sequence. Although its execution is realized by transmitting key information to the train control system, in order to better To make people understand the intention of each key step, use text information to describe its purpose, expected results, etc. Such text description is called key step description information. This is also one of the key information displayed by the system. the

Since the real-time performance of real-time information collection is very important, and the data of the five visible interfaces (transponder, wireless, train interface action TIU, speed, and track circuit) of the on-board subsystem are transmitted irregularly and randomly, so the real-time collection of information In the query, the principle of actively querying the database for data updates at small intervals is adopted to reduce errors. Because the processing cycle of the general vehicle subsystem is 200ms. Therefore, the data query can meet the real-time requirements when the cycle of 50ms is completed, that is, the data table is queried every 50ms to determine whether the data table is empty or the modification time of the data table is the same as the modification time of the last query. If it is empty or If they are the same, ignore the result of this query and enter the next query, otherwise, record the content of this query. the

When it is necessary to conduct non-real-time analysis on the test information of the CTCS train control on-board subsystem, it is necessary to perform re-analysis on the tested data. At this time, the test variables are sorted according to the recording time of the variables in the test sequence in the data table and the place where the event represented by the variable occurs, because the database storing the test data is written by other systems, so the speed of reading by this system is faster than that of other systems. The writing speed is slow, and there may be data updates in multiple data tables during a certain query (such as speed value changes, track circuit updates, wireless messages received N, etc.), then it is necessary to update these Information is sorted by time (with limited time precision and errors) and location, so that the order in which the information appears can be accurate. When sorting, the test variables with a fixed order are firstly screened to form a sorting framework, and then other test variables are inserted and positioned according to the time and place where the event represented by the variable occurs; then the information of the test variable is read from the data table . the

Step S102, analyzing the key information from the information of the test variable, the key information includes:

Parse wireless messages: information direction, information ID, train key variables, etc.;

Analyze train action information: train braking status, activation/deactivation status, etc.;

Analyze train speed information: real-time train speed changes;

Analyzing track circuit information: track circuit code bits received by the current train;

Parsing transponder information: transponder number, transponder ID, etc.;

Parse key step description information: the text description of the key steps executed by the current test sequence;

Analyze section occupancy information: train occupancy section situation. the

Step S103, dynamically displaying the operation status of the CTCS train control vehicle subsystem according to the change of the key information. The display mode is to dynamically display the display information in the form of text or display in animation patterns according to the change of the display information. When displaying, due to the limitation of the collection speed, the 50ms or more time cycle is displayed once, that is, the content of real-time collection is displayed once. In order to make the animation effect good (>=16 frames per second), the loop time interval of the demo program should be less than 62ms. The specific display includes the following steps:

Dynamic display of key step information in the test sequence. the

Graphical elements are used to dynamically display the basic status of the CTCS train control on-board subsystem (including speed, grade, mode), train interface actions (braking status, pantograph status, etc.), wireless message interaction, transponder information and track circuit information. At the same time, it also assists in displaying some key information (excess phase, MA extension, etc.). Wherein, the wireless message interaction refers to an action of exchanging a certain message (such as sending message 136 and receiving message 3). the

The content of the wireless message is dynamically displayed, and the content of the wireless message refers to the specific content in the above-mentioned interactive message 136 and message 3, which requires displaying these information in text form. Due to the important position of wireless messages in the interoperability test, the content of wireless messages is displayed by a special wireless message box, which is mainly used to display the wireless messages interacted between the tested vehicle equipment and RBC, and obviously to the message number, name, Key information such as directions are marked to increase readability. the

Dynamically display the ground equipment information interacting with the CTCS train control on-board subsystem. Although the on-board equipment is used as the test object, in important scenarios such as RBC switching, it is also necessary to display the RBC vehicle control and communication conditions. This area is mainly used to identify the car control RBC, and to vividly display the RBC switching process in the RBC switching scene. At the same time, there is also a basic display of the occupancy of the train in the entire section. the

In order to dynamically display information or use animation to display, the following steps need to be performed when displaying:

The movement of the background pattern is realized according to the speed of the train. The movement of the entire background is proportional to the speed, and the distance-related information such as transponders and section occupancy must be matched with the speed. Therefore, the displayed information is based on the real-time speed of the train provided by the adaptation program. Calculations are performed to determine the speed of background movement and the appearance and disappearance of key information. the

Set the delay constant for the pattern or information to be displayed. When the pattern or information appears, the delay constant will be increased by 1 in each cycle. After adding to the predetermined value, the pattern or information will be invisible and the delay constant will be reset;

Direction signs are set for directional patterns, and directional patterns such as wireless messages have the distinction of receiving and sending, and the lights are lit to indicate the orientation of the train (towards which side to open). For non-directional patterns, the layout position is changed according to the change of the direction sign of the directional pattern. For non-directional patterns such as locomotive signals, no matter which direction the car drives, it always receives track circuit information in one direction. It is designed for this kind of information. The pattern does not need to have a directional mark. The transponders are divided into two groups of uplink and downlink. Uplink and downlink refer to the direction of train running. When going up, only the information marked as valid for uplink is received, and for downlink, only information marked as valid for downlink is received. the

The present invention also discloses a graphical analysis system for the test data of the CTCS train control vehicle subsystem, as shown in Figure 2, including:

The test data acquisition module is used to query the information of the test variables in the test sequence for testing the CTCS train control on-board subsystem from the database storing the test data;

The test data analysis module is used to analyze key information from the information of the test variables, and the key information includes wireless messages, train action information, transponder information and section occupancy information;

The test data display module is used to dynamically display the operation status of the CTCS train control vehicle subsystem according to the change of the key information. the

Wherein, the test data acquisition module includes a real-time data acquisition module, specifically including:

The test sequence real-time query module is used to query the current test sequence from the database storing the test data, and the test variables in the test sequence are arranged in order according to the order of data interaction between the interfaces; the test sequence judgment module is used to judge the Whether the test sequence is the same as the test sequence of the last query, if different, then reset the variable, and re-query, otherwise, execute the test sequence query module; test variable real-time query module: used for every predetermined time period in the database In the data table, the information of the variables in the test sequence is queried in real time, and the real-time query includes:

Query the information in each data table in the database, the information includes: track circuit information, train interface information, wireless messages and train speed;

According to the test sequence of variables in the test sequence, query the key step information about the current CTCS train control vehicle subsystem in the data table;

Query the data table according to the current transponder sequence to obtain transponder information;

Wherein, the test data collection module also includes a non-real-time data collection module, which specifically includes: a test variable sorting module, which is used to test the variables according to the recording time of the variables in the test sequence in the data table and the places where the events represented by the variables occur. The variables are sorted; the test variable reading module is used to read the information of the test variables from the data table. the

Wherein, the test data display module includes: a key step information display module, which is used to dynamically display the key step information in the test sequence; an on-board subsystem information display module, which is used to dynamically display the CTCS train control on-board subsystem with graphic elements The basic state of the train interface, wireless message interaction, transponder information and track circuit information; the wireless information display module is used to dynamically display the wireless message content; the ground information display module is used to dynamically display the interaction with the CTCS train control vehicle subsystem ground equipment information. The display module also includes a working mode selection module, which can select real-time analysis, non-real-time data playback analysis, and early stop (equivalent to initialization, preparing for a new round of analysis) working modes through the buttons on the interface. the

The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Those of ordinary skill in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by the claims. the

Claims (9)

1. a CTCS train control vehicle-mounted subsystem test data graphical analysis method, is characterized in that, comprises the following steps: S1: Query the information of the test variables in the test sequence for testing the CTCS train control on-board subsystem from the database storing the test data; S2: Analyze the key information from the information of the test variables, the key information includes: the information transmitted by the externally visible interface of the on-board train control subsystem and the information for auxiliary analysis of the execution of the test sequence, the on-board train control subsystem externally The information transmitted by the visible interface includes: wireless messages, train action information, transponder information, and track circuit information; the information that assists in analyzing the execution of the test sequence includes: interval occupancy information, key step description information for the execution of the test sequence; S3: displaying the operation status of the CTCS train control on-board subsystem according to the change of the key information, specifically including: Dynamically display the key step description information in the test sequence in text mode; Dynamically display the basic state of the CTCS train control on-board subsystem, train interface actions, wireless message interaction, transponder information and track circuit information with graphic elements; Dynamically display wireless message content in text mode; Dynamically display the ground equipment information interacting with the CTCS train control on-board subsystem. 2. CTCS train control vehicle-mounted subsystem test data graphical analysis method as claimed in claim 1, is characterized in that, when the test information of CTCS train control vehicle-mounted subsystem is analyzed in real time, described step S1 specifically comprises: S11: Query the current test sequence from the database storing the test data, the test sequence is composed of the execution steps in the CTCS train control on-board subsystem according to the agreed execution order; S12: judging whether the test sequence is the same as the test sequence queried last time, if not, then reset the test variable, and re-query, if the same, then execute step S13; S13: query the information of the variables in the test sequence in real-time in the data table of the database every predetermined time period, and the real-time query includes: First query the information in the database corresponding to each data table that stores the visible interface of the CTCS train control on-board subsystem. The information includes: track circuit information, train interface information, wireless messages, train speed and transponder information, wherein the transponder information It is to query the transponder sequence data table according to the real-time position of the train to obtain the current passing transponder information; Secondly, query the data table storing the description information of the key steps of the test sequence in the database. The key steps are the steps that this test focuses on in the test sequence, and the text information describing the purpose and expected results of the key steps is the key step description information. 3. the CTCS train control vehicle-mounted subsystem test data graphical analysis method as claimed in claim 2, is characterized in that, the real-time inquiry mode of described step S13 is: Query the data table every 50ms to determine whether the data table is empty or the modification time of the data table is the same as the modification time of the last query. If it is empty or the same, ignore the result of this query and enter the next query, otherwise, Record the content of this query. 4. the CTCS train control vehicle-mounted subsystem test data graphical analysis method as claimed in claim 1, is characterized in that, when carrying out non-real-time analysis to CTCS train control vehicle-mounted subsystem test information, described step S1 specifically comprises: S14: Sort the test variables according to the recording time of the variables in the test sequence in the data table and the place where the events represented by the variables occur; S15: Read the information of the test variable from the data table. 5. the CTCS train control vehicle-mounted subsystem test data graphical analysis method as claimed in claim 4, is characterized in that, in the described step S14, sorting mode is: Prioritize the test variables with a fixed order to form a sorting framework, and then insert and locate other test variables according to the time and place where the event represented by the variable occurs. 6. CTCS train control vehicle-mounted subsystem test data graphic analysis method as claimed in claim 1, is characterized in that, also comprises the following steps when displaying: Realize the movement of the background pattern according to the speed of the train; Set the delay constant for the pattern or information to be displayed. When the pattern or information appears, the delay constant will be increased by 1 in each cycle. After adding to the predetermined value, the pattern or information will be invisible and the delay constant will be reset; Set the direction mark for the directional pattern, and change the layout position according to the change of the direction mark of the directional pattern for the non-directional pattern. 7. A CTCS train control vehicle-mounted subsystem test data graphical analysis system, is characterized in that, comprising: The test data acquisition module is used to query the information of the test variables in the test sequence for testing the CTCS train control on-board subsystem from the database storing the test data; The test data analysis module is used to analyze the key information from the information of the test variables, the key information includes: the information transmitted by the externally visible interface of the train control vehicle subsystem and the information for assisting in the analysis of the execution of the test sequence. The information transmitted by the externally visible interface of the control vehicle subsystem includes: wireless messages, train action information, transponder information and track circuit information; the information for auxiliary analysis of the execution of the test sequence includes: interval occupancy information, current execution step information of the test sequence ; The test data display module is used to display the operation of the CTCS train control vehicle subsystem according to the change of the key information, specifically including: The key step information display module is used to dynamically display the key step description information in the test sequence in text mode; The on-board subsystem information display module is used to dynamically display the basic state, train interface action, wireless message interaction, transponder information and track circuit information of the CTCS train control on-board subsystem with graphic elements; The wireless information display module is used to dynamically display the wireless message content in text mode; The ground information display module is used to dynamically display the ground equipment information interacting with the CTCS train control vehicle subsystem. 8. CTCS train control vehicle-mounted subsystem test data graphical analysis system as claimed in claim 7, is characterized in that, described test data collection module comprises real-time data collection module, specifically comprises: The test sequence real-time query module is used to query the current test sequence from the database storing the test data, and the test sequence is composed of the execution steps in the CTCS train control vehicle subsystem according to the agreed execution order; A test sequence judging module, used to judge whether the test sequence is the same as the test sequence of the previous query, if different, reset the test variable, and re-query, if the same, execute the test sequence query module; Test variable real-time query module: used to query the information of the variables in the test sequence in real-time in the data table of the database every predetermined time period, and the real-time query includes: First query the information in the database corresponding to each data table that stores the visible interface of the CTCS train control on-board subsystem. The information includes: track circuit information, train interface information, wireless messages, train speed and transponder information, wherein the transponder information It is to query the balise sequence data table according to the real-time position of the train to obtain the current passing balise information; Secondly, query the data table storing the description information of the key steps of the test sequence in the database. The key steps are the steps that this test focuses on in the test sequence, and the text information describing the purpose and expected results of the key steps is the key step description information. 9. CTCS train control vehicle-mounted subsystem test data graphical analysis system as claimed in claim 7, is characterized in that, described test data acquisition module also comprises non-real-time data acquisition module, specifically comprises: The test variable sorting module is used to sort the test variables according to the recording time of the variables in the test sequence in the data table and the places where the events represented by the variables occur; The test variable reading module is used to read the information of the test variable from the data table. the

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