Method for testing driving and mining consistency of interlocking system

Abstract

The invention relates to the technical field of rail transit signal control, and discloses an interlocking system driving and collecting consistency test method, which is characterized in that an interlocking driving and collecting cabinet, a switch, a maintenance notebook computer, a loop cable and driving and collecting consistency test software are used for testing, and a plurality of connectors and input and output sub-frames are arranged in the interlocking driving and collecting cabinet; a plurality of input board cards, output board cards and communication modules are arranged in the input and output sub-frame. According to the interlocking system driving and acquisition consistency testing method, through universal driving and acquisition consistency testing software, interlocking control areas with the same architecture are adopted, during testing, testing software does not need to be repeatedly generated for each control area, and only equipment code bit tables of the control areas need to be imported into configuration folders of the software; the driving and mining consistency test software can automatically analyze and generate the corresponding test case, so that the work of repeatedly generating software and manually calculating and configuring for each control area is omitted, and the possibility of human errors and missed test is fundamentally avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit signal control technology, in particular to a method for testing consistency of an interlocking system. BACKGROUND

[0002] In a rail transit signal system, an interlocking subsystem is a core device for ensuring train operation safety. To ensure that the interlocking system can correctly control trackside devices such as signals and points and collect their states, before the system is put into operation, consistency testing of driving and acquisition must be carried out. This testing aims to verify whether each input / output point in the interlocking driving and acquisition cabinet meets the definition of the design drawing code table, ensuring that the output circuit and the input circuit are correctly connected, without open circuit or short circuit with other point circuits.

[0003] In the prior art, a loopback test method is generally used for consistency testing of driving and acquisition. Specifically, a specially designed loopback cable is connected to the external connector of the interlocking driving and acquisition cabinet. One plug of the cable is connected to the connector of the input board, and the other two plugs are respectively connected to the connectors of the two output boards, thereby forming a test loop. Before testing, different test software needs to be specially generated for each interlocking control area with different device configurations. During testing, the operator must manually and sequentially replace the connector plugs of the loopback cable according to the software prompts to connect different input board and output board combinations for testing.

[0004] The existing test method needs to generate different consistency test software for driving and acquisition for all control areas in advance due to different device point configurations of each interlocking control area. The processing combination of the loopback cable is manually calculated according to the input and output of the different control area code table, and one input board is matched with four output boards. The whole process is time-consuming and laborious, and errors are likely to occur during calculation, resulting in missed testing, etc. The software must be installed in all four interlocking calculation units, each of which is configured differently, and the software installation process is relatively cumbersome. Using a single loopback cable for testing, only one input board and four output board combinations can be tested at a time. After testing is completed, a new set of input and output test must be replaced according to the software prompts, increasing the workload and testing time. During each test, since other input and output points are not connected and detected, it is impossible to verify the short circuit condition between the test points and non-test points, resulting in errors in other points without being verified. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a method for testing consistency of an interlocking system, which solves the problems mentioned in the background.

[0006] The application provides the following technical scheme: a method for testing consistency of interlocking and driving and collecting, which uses an interlocking driving and collecting cabinet, a switch, a maintenance notebook, a loop cable and a driving and collecting consistency test software to perform the test, a plurality of connectors and input and output sub-shelves are arranged in the interlocking driving and collecting cabinet, and a plurality of input board cards, output board cards and communication modules are arranged in the input and output sub-shelves. The method comprises the following steps: In step S1, a plurality of loop cables are connected to all external connectors of the interlocking driving and collecting cabinet, wherein the loop cables internally connect output points of the output board cards to input points of the input board cards, and cover all points of the input and output board cards and reserved points of the interlocking driving and collecting cabinet. In step S2, the driving and collecting consistency test software is run on the maintenance notebook, the driving and collecting consistency test software is general software and is suitable for all interlocking products with the same architecture, and before the test, a device code table of a control area is imported into the driving and collecting consistency test software, and the driving and collecting consistency test software automatically generates test cases according to the code table. In step S3, the maintenance notebook is connected to the communication modules of the input and output sub-shelves of the interlocking driving and collecting cabinet through the switch, so that the driving and collecting consistency test software can directly drive output signals of the output board cards and collect input signals of the input board cards through the communication modules. In step S4, the test is performed, the driving and collecting consistency test software drives output signals to the output board cards through the communication modules, the output signals are returned to the input board cards through the loop cables, the driving and collecting consistency test software collects input signals of the input board cards, and the driving and collecting consistency of each point is detected one by one. In step S5, step S4 is repeated until all output points are tested. In step S6, the driving and collecting consistency test software generates a test report based on the detection result.

[0007] Preferably, in step S1, the plug of the loop cable is connected to the external connector of the interlocking driving and collecting cabinet. Preferably, one of the external connectors is connected to one input board card, or one of the external connectors is connected to two output board cards.

[0008] Preferably, the input board card processes 16 signals, and each output board card processes 8 signals.

[0009] Preferably, in step S3, the maintenance notebook communicates with the communication modules through the switch by using an Ethernet protocol.

[0010] Preferably, in the step S4, when the drive consistency test software drives the output signal, the main module of the output card and the standby module of the output card are driven at the same time, so that the output signal is output through the main module of the output card and the standby module of the output card respectively.

[0011] Preferably, in the step S4, when the drive consistency test software collects the input signal, the input signal of the main module of the input card and the standby module of the input card is detected at the same time, and it is verified that there is no signal at all other input points, so as to detect whether there is false electricity caused by line short circuit at non-test points.

[0012] Preferably, in the step S2, the device code table is used to define the input and output point layout of the interlocking drive cabinet, and the drive consistency test software automatically generates test cases covering all points by reading the code table.

[0013] Preferably, the number of input and output sub-frames of each interlocking drive cabinet is less than three.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. In the present application, by using the universal drive consistency test software and the interlocking control area with the same architecture, when testing, it is not necessary to repeatedly generate test software for each control area, but only needs to import the device code table of the present control area into the configuration folder of the software, and the drive consistency test software can automatically analyze and generate the corresponding test cases, which saves the work of repeatedly generating software and manually calculating the configuration for each control area, and avoids the possibility of human error and missed measurement from the root.

[0015] 2. In the present application, the drive consistency test software runs on an external maintenance notebook, and is directly connected with the communication module of the input and output sub-frame of the interlocking drive cabinet through an Ethernet switch, so as to directly drive and collect signals, which saves the step of installing the test software to the interlocking calculation unit, simplifies the test environment construction, and makes the test process not dependent on the availability of the interlocking core calculation unit.

[0016] 3. In the present application, a plurality of loop cables are used, and all the external connectors of the drive cabinets are connected at one time before the test starts, so as to realize full coverage physical connection of all input / output points, and in the test process, it is not necessary to repeatedly plug in and plug out any cable plug, so that the software can automatically and continuously complete the test of all points, which saves the operation time and improves the test efficiency.

[0017] 4、The application, because all point positions of the external connector are connected to the position through the loop cable during testing, the input signal is collected by the drive consistency test software when collecting the input signal of the main module of the input board card and the standby module of the input board card, and the input signal of all other input positions is verified to be no signal, so as to detect whether the false electricity of the non-test position exists due to the line short circuit, if any abnormal electricity signal of the non-test position is monitored, it can be immediately judged that there is a line short circuit fault. This design can effectively detect the short circuit problem that cannot be found by the traditional method, improve the coverage and reliability of the test, and eliminate the safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The flowchart of the application; Figure 2 The hardware connection diagram of the application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0020] Please refer to Figures 1-2 A locking system drive consistency test method, which uses a locking drive cabinet, a switch, a maintenance notebook, a loop cable and a drive consistency test software for testing, the locking drive cabinet is provided with a plurality of connectors and input and output sub-shelves, and the input and output sub-shelves contain a plurality of input board cards, output board cards and communication modules; The method comprises the following steps: Step S1, connect a plurality of loop cables to all external connectors of the locking drive cabinet, wherein the loop cable internally connects the output position of the output board card to the input position of the input board card, covering all input and output positions of the locking drive cabinet and the reserved positions; Step S2, run the drive consistency test software on the maintenance notebook, the drive consistency test software is a general software suitable for all locking products with the same architecture, and the equipment code bit table of the control area is imported into the drive consistency test software before testing, and the drive consistency test software automatically generates test cases according to the code bit table; Step S3, connect the maintenance notebook to the communication module of the input and output sub-shelves of the locking drive cabinet through the switch, so that the drive consistency test software can directly drive the output signal of the output board card and collect the input signal of the input board card through the communication module; Step S4, performing test: the drive-scan consistency test software drives output signals to the output board card through the communication module, the output signals return to the input board card through the loop cable, the drive-scan consistency test software collects the input signals of the input board card, and detects the drive-scan consistency of each point one by one; Step S5, repeating step S4 until all output points are tested; Step S6, the drive-scan consistency test software generates a test report based on the detection results.

[0021] In step S1, the plug of the loop cable is connected with the external connector of the interlocking drive-scan cabinet. Wherein, one external connector is connected with one input board card inside, or one external connector is connected with two output board cards inside.

[0022] The input board card processes 16 signals, and each output board card processes 8 signals.

[0023] In step S3, the maintenance notebook communicates with the communication module through the switch by using the Ethernet protocol.

[0024] In step S4, when the drive-scan consistency test software drives the output signals, the main module of the output board card and the standby module of the output board card are driven at the same time, so that the output signals are output through the main module of the output board card and the standby module of the output board card respectively.

[0025] In step S4, when the drive-scan consistency test software collects the input signals, the input signals of the main module of the input board card and the standby module of the input board card are detected at the same time, and it is verified that there is no signal in all other input points, so as to detect whether there is a false power-on caused by line short circuit in the non-test point.

[0026] In step S2, the device code table is used to define the input and output point layout of the interlocking drive-scan cabinet, and the drive-scan consistency test software automatically generates test cases covering all points by reading the code table.

[0027] The number of input and output sub-frames of each interlocking drive-scan cabinet is less than three.

[0028] In a specific embodiment, the hardware connection is as shown in Figure 2 The main components include: interlocking drive-scan cabinet A, interlocking drive-scan cabinet B, switch, maintenance notebook, two sets of loop cables, and drive-scan consistency test software installed on the maintenance notebook.

[0029] 1. Hardware connection First, the hardware preparation work before testing is carried out: Connection back cable: all the plugs of two sets of multi-back cable are inserted into all the external connectors of interlocking drive collection cabinet A and interlocking drive collection cabinet B respectively. In the interlocking drive collection cabinet, one external connector is connected with an input card or two output cards. The output signal lines of each point on the output card are directly connected to the corresponding input card in sequence through the back cable, so as to realize full coverage direct connection of all in-use and reserved points.

[0030] Establish communication network: use network cable to connect the maintenance notebook to a port of the switch, and then connect multiple network cables from the switch to the first layer input and output shelves A and B in interlocking drive collection cabinet A and interlocking drive collection cabinet B. At this time, the maintenance notebook has established physical connection with all communication modules in the drive collection cabinet through the network switch.

[0031] 2. Software configuration Start the drive collection consistency test software on the maintenance notebook. The drive collection consistency test software is a general software suitable for all interlocking systems with the same hardware architecture. Before testing, only need to import or place the device code table file of the interlocking control area into the specified configuration folder of the software. The drive collection consistency test software runs the initialization script, automatically reads the code table, parses the layout information of all input and output points of the control area, and generates test case sequences covering all points automatically.

[0032] 3. Test execution process After the software configuration is completed, the automatic test can be started: The software sends drive commands to the main module and standby module of the specified output card through the switch and communication module, and closes the solid-state relay of the specified point.

[0033] The positive electrode of the power supply passes through the terminal block and fuse, the contact of the driven output card main module, and then through the connected back cable, and sends the signal directly to the first acquisition point of the corresponding input card main module. At the same time, the power supply also passes through the contact of the output card standby module and sends the signal to the first acquisition point of the input card standby module through the back cable.

[0034] The drive collection consistency test software collects the state of the input card in real time through the communication module. It checks two key conditions: Whether the main module and standby module of the corresponding input point simultaneously collect high-level signals to verify that the output-input path is not open circuit.

[0035] Whether all other input points except the current tested input point do not collect signals to verify that there is no short circuit fault between the point and other points.

[0036] If the above two conditions are met at the same time, the point test is recorded as passed, and then the software automatically switches to the next output point, for example, the second point of the first output board, and repeats the above driving and collection verification process until all output points defined in the code table are traversed.

[0037] 4. Test result output After the test is completed, the drive and collection consistency test software will automatically generate a detailed test report. The report content usually includes test time, total number of test points, passed points, failed points and their failure reasons, such as: master and standby collection inconsistency, non-test point misderivation, etc. The operator can quickly locate and handle hardware connection faults according to the report.

[0038] Although embodiments of the present application have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for testing the consistency of drive and sampling in an interlocking system, characterized in that, The test was conducted using the interlocking drive and mining cabinet, switch, maintenance laptop, return cable and drive and mining consistency test software. The interlocking drive and mining cabinet is equipped with multiple connectors and input / output subracks. The input / output subracks contain several input boards, output boards and communication modules. Includes the following steps: Step S1: Connect multiple return cables to all external connectors of the interlocking mining cabinet. The return cables directly connect the output points of the output boards to the input points of the input boards, covering all input and output board points and reserved points of the interlocking mining cabinet. Step S2: Run the driver-acquisition consistency test software on the maintenance laptop. The driver-acquisition consistency test software is a general-purpose software that is applicable to all interlocking products with the same architecture. Before the test, import the device code table of this control area into the driver-acquisition consistency test software. The driver-acquisition consistency test software automatically generates test cases based on the code table. Step S3: Connect the maintenance laptop to the communication module of the input / output subrack of the interlocking drive and acquisition cabinet through the switch, so that the drive and acquisition consistency test software can directly drive the output signal of the output board and acquire the input signal of the input board through the communication module. Step S4, execute the test: The drive-sampling consistency test software drives the output signal to the output board through the communication module, and the output signal returns to the input board via the return cable. The drive-sampling consistency test software collects the input signal of the input board and checks the drive-sampling consistency of each point one by one. Step S5, repeat step S4, until all output points have been tested; Step S6: The drive-collection consistency test software generates a test report based on the test results.

2. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, In step S1, the plug of the return cable is connected to the external connector of the interlocking drive cabinet; One of the external connectors is connected to an internal input board, or the external connector is connected to two internal output boards.

3. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, Each input board processes 16 signals, and each output board processes 8 signals.

4. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, In step S3, the maintenance laptop communicates with the communication module via the Ethernet protocol through the switch.

5. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, In step S4, when the driver-sampling consistency test software drives the output signal, it simultaneously drives the main module and the backup module of the output board, so that the output signal is output through the main module and the backup module of the output board respectively.

6. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, In step S4, when the driver-acquisition consistency test software acquires the input signal, it simultaneously detects the input signals of the main module and the backup module of the input board, and verifies that there is no signal at all other input points, so as to detect whether there is false power supply at non-test points due to line short circuit.

7. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, In step S2, the equipment code table is used to define the layout of the input and output points of the interlocking drive and acquisition cabinet, and the drive and acquisition consistency test software automatically generates test cases covering all points by reading the code table.

8. The method for testing the consistency of interlocking system drive and sampling according to claim 1, characterized in that, Each of the interlocking drive cabinets has fewer than three input / output subracks.

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