A method for automatically calibrating a relay cabinet

Abstract

The present invention discloses an automatic calibration method for a relay cabinet, wherein two ends of the relay cabinet are connected to a trackside controller and a trackside equipment simulation disk, and a PC end is connected between the trackside controller and the trackside equipment simulation disk. The automatic calibration method comprises: the PC end controls the trackside equipment simulation disk to simulate the trackside equipment change state, and performs input calibration inspection according to the changed state collected by the trackside controller; the PC end controls the trackside equipment simulation disk through the trackside controller to simulate the trackside equipment change state, and performs output calibration inspection according to the changed state collected by the trackside controller. The present invention improves the level of automatic calibration and reduces errors in the manual calibration process.

Description

Technical Field

[0001] The invention relates to the field of rail transit testing, and in particular to an automatic line calibration method for a relay cabinet. Background Art

[0002] As the number of peripheral control devices in the current rail transit system increases, the circuit logic becomes more and more complex, making the combination of connections and relays inside the relay cabinet more and more huge. For the current relay cabinet calibration, there are the following defects:

[0003] 1) The calibration process is all completed manually, which is time-consuming and labor-intensive.

[0004] 2) The calibration process often only performs positive tests. Wiring errors caused by mixed wires inside the relay cabinet or other reasons cannot usually be discovered through this process.

[0005] In actual railway accidents, many accidents are caused by mixed lines or wrong connections of equipment in signal cabinets. Therefore, such problems are often an important part of the safety of rail transit systems and are worthy of attention and summary. Summary of the invention

[0006] The object of the present invention is to provide an automatic calibration method for a relay cabinet, so as to improve the level of automatic calibration and reduce errors in the manual calibration process.

[0007] The technical solution to achieve the above purpose is:

[0008] An automatic calibration method for a relay cabinet, wherein two ends of the relay cabinet are connected to a trackside controller and a trackside equipment simulation disk, and a PC terminal is connected between the trackside controller and the trackside equipment simulation disk. The automatic calibration method comprises:

[0009] The PC controls the trackside equipment simulation disk to simulate the trackside equipment state change, and performs input calibration check according to the changed state collected by the trackside controller;

[0010] The PC side controls the trackside equipment simulation disk through the trackside controller to simulate the change state of the trackside equipment, and performs output calibration inspection according to the changed state collected by the trackside controller.

[0011] Preferably, the PC controls the trackside equipment simulation disk to simulate the trackside equipment change state, and performs input calibration check according to the changed state collected by the trackside controller, including:

[0012] The PC controls the trackside equipment simulation disk to simulate the change of state of the trackside equipment according to the first test command, and the changed state is fed back to the trackside controller through the relay cabinet; the trackside controller feeds back the collected changed state to the PC; the PC compares the collected changed state with the first command state in the first test command. If they are consistent, it means that the internal wiring of the relay cabinet is correct. If they are inconsistent, it means that the wiring is incorrect.

[0013] Preferably, the PC controls the trackside device simulation disk to simulate the trackside device change state through the trackside controller, and performs output calibration inspection according to the changed state collected by the trackside controller, including:

[0014] The PC controls the trackside controller to issue an instruction according to the second test command. The instruction is transmitted to the trackside equipment simulation disk through the relay cabinet to simulate the change of the trackside equipment state. The trackside equipment simulation disk outputs the recovery state and the changed state and transmits it to the trackside controller through the relay cabinet; the trackside controller verifies whether the instruction is correct according to the recovery state; the trackside controller feeds back the collected changed state to the PC; the PC compares the collected changed state with the second command state in the second test command. If they are consistent, it means that the internal wiring of the relay cabinet is correct. If they are inconsistent, it means that the wiring is incorrect.

[0015] Preferably, the first test command or the second test command is input into the PC by a tester.

[0016] Preferably, the first command state or the second command state refers to an input point position of a relay cabinet.

[0017] Preferably, the recovery status refers to the verification of the instruction.

[0018] Preferably, the PC terminal sequentially traverses each input point of the relay cabinet corresponding to the changed state, and compares the input points with the changed state.

[0019] Preferably, the PC is loaded with a calibration test software program for realizing the functions of the PC.

[0020] Preferably, the trackside controller is loaded with a calibration test version software program for implementing the functions of the trackside controller.

[0021] The beneficial effects of the present invention are as follows: the present invention configures different trackside devices and the input and output states of the trackside devices through a configurable simulation disk, uses a dedicated inspection software to burn into the trackside controller, cooperates with the PC-side software, controls the commands of the trackside controller and the state of the simulation disk device, automatically checks the functional points one by one, and verifies the correctness of the relay cabinet connection. This enables full coverage of complex tests, especially for the detection of internal mixed lines and wrong wiring, and strives to ensure the correctness of the internal wiring of the entire relay cabinet and the relay logic. It has universality for different relay types, can save test processes, and at the same time improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the principle of the automatic calibration method of the relay cabinet in the present invention;

[0023] Figure 2 It is a schematic diagram of the principle of input calibration inspection in the present invention;

[0024] Figure 3 It is a schematic diagram of the principle of output calibration inspection in the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] See also Figure 1-3 The two ends of the relay cabinet are connected to the trackside controller and the trackside equipment simulation panel, and the trackside controller and the trackside equipment simulation panel are connected to the PC end.

[0027] By installing a special calibration test software program on the PC (computer), the data of the trackside controller and the trackside equipment simulation disk can be collected and compared at the same time, and the trackside controller can be controlled to issue specific commands and the trackside equipment simulation disk can be used to simulate the status of the trackside equipment.

[0028] The trackside equipment simulation panel can simulate the hardware peripherals of external devices, and can be configured into optional relay cabinet peripheral devices according to specific instructions, such as turnouts, signal machines, shield doors, external interlocking interfaces, axle counting sections, etc., and simulate specific input and output points and high and low voltages according to the characteristics of the configuration, and communicate with the calibration test software program specially installed on the PC to transmit the input and output status.

[0029] The special calibration test version software program on the trackside controller integrates the information of related relay control devices and can collect the status information of the simulation control panel. And through the cooperation with the calibration test software program installed on the PC, it can issue commands to the peripheral devices of the simulation panel.

[0030] The automatic line calibration method of the relay cabinet of the present invention comprises the following steps:

[0031] Step 1: The PC controls the trackside equipment simulation panel to simulate the trackside equipment status change, and performs input calibration check based on the changed status collected by the trackside controller. The input calibration check mainly collects the simple input status of the trackside equipment (the trackside controller does not control the equipment), such as the axle counting section status, and the input status of the external interlocking, etc. Specifically,

[0032] The tester inputs the first test command to the PC, and the PC controls the trackside equipment simulation disk according to the first test command to simulate the change of state of the trackside equipment. The changed state is fed back to the trackside controller through the relay cabinet; the trackside controller feeds back the collected changed state to the PC; the PC compares the collected changed state with the first command state in the first test command (the input point of the relay cabinet). If it is consistent with the expected result (all input point results are normal, avoiding mixed lines and wrong connections), it means that the wiring at this location inside the relay cabinet is correct, and then the next point is compared until all point data are traversed and the comparison is completed. If they are inconsistent, it means that the wiring is incorrect.

[0033] Among them, for each test command, the corresponding external output state will have a unique acquisition state. The PC-side logic will detect the logical state that should be acquired at this time according to the command state. If the state is consistent, it means that the internal wiring of the relay cabinet is correct. If it is inconsistent, it means that the wiring is incorrect. For example, move the state of a turnout to positioning. The corresponding input is: positioning is represented by 1; reverse position is represented by 0. Other acquisition states not related to this are all default states.

[0034] Step 2: The PC controls the trackside equipment simulation panel through the trackside controller to simulate the trackside equipment status change, and performs output calibration check based on the changed status collected by the trackside controller. The output calibration check is mainly performed by controlling the trackside controller, and then collecting the output recovery status of the trackside equipment and the changed trackside equipment status, such as controlling the turnout status and controlling the platform screen door. Specifically,

[0035] The tester inputs the second test command to the PC, and the PC controls the trackside controller to issue an instruction according to the second test command. The instruction is transmitted to the trackside equipment simulation disk through the relay cabinet to simulate the change of the trackside equipment state. The trackside equipment simulation disk outputs the recovery state and the changed state and transmits it to the trackside controller through the relay cabinet; the trackside controller verifies whether the instruction is correct according to the recovery state; the trackside controller feeds back the collected changed state to the PC; the PC compares the collected changed state with the second command state in the second test command (the input point of the relay cabinet). If it is consistent with the expected result (all input point results are normal to avoid mixing and wrong connection), it means that the wiring at this point inside the relay cabinet is correct, and then the next point is compared until all point data are traversed and the comparison is completed. If they are inconsistent, it means that the wiring is incorrect.

[0036] Among them, the recovery status is the verification of the command. For example, when a command is issued to drive the relay, the trackside controller will also collect the front / rear sections of the relay to verify the correctness of the command it issued.

[0037] In summary, the correctness of the internal connection of the relay cabinet is the basis for trackside functional control. In the previous field testing process, the functional points of the input and output of the hardware need to be tested and verified one by one, which often consumes huge manpower and material resources and consumes a long time. The present invention can be used for the above various functional point tests, and the input and output point types are universal, and the correct connection of the relay cabinet can be completed quickly and in advance at the factory stage. In the present invention, it is best to assist the relay cabinet manufacturer in performing the calibration test for factory inspection after the relay cabinet has been installed (including after the trackside controller is installed) and before the relay cabinet leaves the factory. The main purposes are: 1) the entire relay cabinet is in a state of complete installation, and the real input and output test of the trackside can be carried out, and 2) if problems are found, the design and installation of the relay cabinet can be modified in time to avoid the relay cabinet being sent to the site and the modification of installation or design problems during the on-site testing and calibration process.

[0038] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. An automatic calibration method for a relay cabinet, wherein two ends of the relay cabinet are connected to a trackside controller and a trackside equipment simulation disk, and a PC terminal is connected between the trackside controller and the trackside equipment simulation disk, characterized in that: The automatic calibration method comprises: The PC controls the trackside equipment simulation disk to simulate the trackside equipment state change, and performs input calibration check according to the changed state collected by the trackside controller; The PC end controls the trackside equipment simulation disk through the trackside controller to simulate the change state of the trackside equipment, and performs output calibration inspection according to the changed state collected by the trackside controller; The PC controls the trackside equipment simulation disk to simulate the trackside equipment change state, and performs input calibration inspection according to the changed state collected by the trackside controller, including: The PC end controls the trackside equipment simulation disk to simulate the trackside equipment changing state according to the first test command, and the changed state is fed back to the trackside controller through the relay cabinet; the trackside controller feeds back the acquired changed state to the PC end; the PC end compares the acquired changed state with the first command state in the first test command, if they are consistent, it means that the internal wiring of the relay cabinet is correct, if they are inconsistent, it means that the wiring is incorrect; The PC end controls the trackside device simulation disk through the trackside controller to simulate the change state of the trackside device, and performs output calibration inspection according to the changed state collected by the trackside controller, including: The PC controls the trackside controller to issue an instruction according to the second test command, and the instruction is transmitted to the trackside equipment simulation disk through the relay cabinet to simulate the change of the trackside equipment state. The trackside equipment simulation disk outputs the recovery state and the changed state and transmits it to the trackside controller through the relay cabinet; the trackside controller verifies whether the instruction is correct according to the recovery state; the trackside controller feeds back the collected changed state to the PC; the PC compares the collected changed state with the second command state in the second test command, if they are consistent, it means that the internal wiring of the relay cabinet is correct, if they are inconsistent, it means that the wiring is incorrect; The first command state or the second command state refers to the input point position of the relay cabinet; The PC terminal sequentially traverses each input point of the relay cabinet corresponding to the changed state, and compares it with the changed state; The recovery status refers to the verification of the instruction; The trackside controller is loaded with a calibration test version software program for realizing the functions of the trackside controller.

2. The automatic line calibration method of the relay cabinet according to claim 1, characterized in that: The first test command or the second test command is input into the PC by a tester.

3. The automatic line calibration method of the relay cabinet according to claim 1, characterized in that: The PC terminal is loaded with a calibration test software program for realizing the functions of the PC terminal.

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