Testing device for lower-layer machine of hump automatic control system

Abstract

The utility model discloses a testing device for a lower-layer machine of an automatic hump control system. The testing device comprises a circuit breaker, the input end of the circuit breaker is connected with the output end of an external alternating current power supply AC; the output end of the circuit breaker is respectively connected with the display, the case, the switch, the upper-layer machine, the workstation and the power supply input end of the direct-current power supply; a video output interface of the upper computer is connected with a first video input interface of the KVM switcher; the work station is connected with a second video input interface of the KVM switcher; a video output interface of the KVM switcher is connected with a video input interface of the display; a network port of the upper-layer machine is connected with a first network port of the switch; the network port of the workstation is connected with the second network port of the switch; the communication interface of the work station is in communication connection with the board card to be tested. According to the utility model, whether the functions (the output function and the acquisition function) of each lower-layer controller included in the lower-layer machine of the TW-2 type hump automatic control system are normal can be reliably tested, and the test efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of signal testing, in particular to a testing device for a lower layer machine of a hump automatic control system, which is used for testing whether the functions of the lower layer machine of a TW-2 type hump automatic control system are normal. Background Art

[0002] Hump ​​yard shunting technology is currently developing rapidly, and the TW-2 hump automatic control system, produced by China Railway Signal & Communication Group Corporation, has been widely used. As a hump shunting control device, the TW-2 hump automatic control system is widely applicable to large, medium, and small shunting yards.

[0003] The basic functions of the TW-2 hump automatic control system include interlocking and control of the pushing route and shunting route, automatic control of the shunting route and shunting speed, as well as speed control of the pushing locomotive, networking with other related systems, and monitoring, maintenance and support functions for the system and equipment.

[0004] The entire TW-2 hump automatic control system is divided into four layers from top to bottom: the first layer is the workstation, the second layer is the upper machine, the third layer is the lower machine, and the fourth layer is the expansion interface of intelligent input and output.

[0005] In the entire TW-2 hump automatic control system, the third-layer lower-layer machine includes multiple lower-layer controllers (specifically including boards such as the route control board and the reducer control board). Each lower-layer controller is used for data processing. The lower-layer machine and the second-layer upper-layer machine in the system communicate with each other using a local area network (CAN) with a bandwidth of 1M.

[0006] In order to ensure the factory quality of the TW-2 hump automatic control system, before it is sold, it is necessary to test whether the functions of the lower-level controllers included in the lower-level machine of the TW-2 hump automatic control system are normal (the functions that need to be tested include, for example, signal output function and signal acquisition function), and at the same time, it is necessary to test whether the CAN (local area network) communication function between the lower-level machine and the upper-level machine is normal.

[0007] However, there is currently no technology that can reliably achieve the above functions. Utility Model Content

[0008] The purpose of the utility model is to provide a testing device for the lower machine of a hump automatic control system in view of the technical defects in the prior art.

[0009] To this end, the utility model provides a test device for the lower machine of a hump automatic control system, which includes a circuit breaker, a display, a chassis, a switch, a KVM switch, an upper machine, a workstation and a DC power supply;

[0010] The input terminal of the circuit breaker is connected to the output terminal of the external AC power supply;

[0011] The output end of the circuit breaker is connected to the display, chassis, switch, upper machine, workstation and power input end of the DC power supply respectively;

[0012] The video output interface on the upper machine is connected to the first video input interface on the KVM switch via a video cable;

[0013] The video output interface on the workstation is connected to the second video input interface on the KVM switch via a video cable;

[0014] The video output interface on the KVM switch is connected to the video input interface on the monitor via a video cable;

[0015] The network port of the upper-layer machine is connected to the first network port of the switch via a straight-through network cable;

[0016] The network port of the workstation is connected to the second network port of the switch via a straight-through network cable;

[0017] The communication interface on the workstation is connected to the board to be tested.

[0018] It can be seen from the technical solution provided by the above utility model that compared with the existing technology, the utility model provides a testing device for the lower machine of the hump automatic control system, which is scientifically designed. As a testing device for the lower machine of the TW-2 hump automatic control system, it can reliably test whether the functions of each lower-level controller included in the lower machine of the TW-2 hump automatic control system (specifically including the signal output function of the output channel and the signal acquisition function of the acquisition channel) are normal before the TW-2 hump automatic control system is shipped out of the factory, thereby ensuring the efficiency of the test and having great practical significance.

[0019] In addition, by applying the present invention, it is also possible to test whether the CAN (local area network) communication function between the lower-layer machine and the upper-layer machine is normal, thereby ensuring the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the electrical structure of a test device for the lower machine of a hump automatic control system provided by the present invention;

[0021] Figure 2 This is a front view of the appearance structure of a test device for the lower machine of a hump automatic control system provided by the utility model;

[0022] Figure 3This is a rear view of the appearance structure of a testing device for the lower machine of a hump automatic control system provided by the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] See also Figures 1 to 3 The utility model provides a test device for the lower layer machine of a hump automatic control system. As a test device for the lower layer machine of a TW-2 type hump automatic control system, the utility model is used to test whether the functions of the lower layer controllers included in the lower layer machine of the TW-2 type hump automatic control system are normal, and whether the CAN (local area network) communication function is normal.

[0028] The test device includes: a circuit breaker 18, a display 400, a chassis 5, a switch 6, a KVM switch 7, an upper machine 11, a workstation 12 and a DC power supply 13;

[0029] The input terminal of the circuit breaker (QF1) 18 is connected to the output terminal of an external AC power source AC (e.g., AC220V AC voltage);

[0030] The output end of the circuit breaker (QF1) 18 is connected to the power supply input end of the display 400, the chassis 5, the switch 6, the upper machine 11, the workstation 12 and the DC power supply 13 respectively;

[0031] The video output interface on the upper computer 11 is connected to the first video input interface on the KVM switch 7 (i.e., a multi-computer switch) via a video cable (e.g., a VGA cable);

[0032] The video output interface on the workstation 12 is connected to the second video input interface on the KVM switch 7 via a video cable (e.g., a VGA cable);

[0033] The video output interface on the KVM switch 7 is connected to the video input interface on the display 400 via a video cable (e.g., a VGA cable);

[0034] The network port (i.e., network cable interface) of the upper-layer machine 11 is connected to the first network port of the switch 6 via a straight-through network cable;

[0035] The network port of the workstation 12 is connected to the second network port of the switch 6 via a straight-through network cable;

[0036] The communication interface on the workstation 12 is in communication connection with the board to be tested.

[0037] In the present invention, in a specific implementation, the board to be tested is located in the chassis 5;

[0038] The RS232 communication interface on the workstation 12 is connected to the test port on the board to be tested in the chassis 5 via an RS232 communication line;

[0039] It should be noted that the test port of the board to be tested is a communication test port, specifically an RS232 communication interface, which is a universal RS232 interface for testing provided on the board, and is a communication interface for testing configured on the board itself.

[0040] In a specific implementation, the power supply end of the board to be tested is connected (specifically plugged) to a rectangular electrical connector (specifically a rectangular electrical connector of model 103968 of the ERNI brand) on the motherboard in the chassis 5 .

[0041] In the present invention, in a specific implementation, the CAN communication interface on the upper machine 11 is connected to the CAN access port of the lower machine in a hump automatic control system 100 to be tested (specifically the lower machine of the system, which is: the tested chassis in which the system is installed) through a CAN communication line.

[0042] In the present invention, in a specific implementation, the live wire terminal L of the external AC power source AC (for example, AC220V AC voltage) is connected to the live wire input terminal 1 of the circuit breaker (QF1) 18;

[0043] The neutral terminal N of the external AC power source is connected to the neutral line input terminal 3 of the circuit breaker (QF1) 18;

[0044] The ground terminal PE of the external AC power supply is grounded;

[0045] The live wire output terminal 2 of the circuit breaker (QF1) 18 is respectively connected to the live wire input terminal L of the display 400, the live wire input terminal L of the chassis 5, the live wire input terminal L of the switch 6, the live wire input terminal L of the upper-layer machine 11, the live wire input terminal L of the workstation 12, and the live wire input terminal L of the DC power supply 13;

[0046] The neutral line output terminal 4 of the circuit breaker (QF1) 18 is respectively connected to the neutral line input terminal N of the display 400, the neutral line input terminal N of the chassis 5, the neutral line input terminal N of the switch 6, the neutral line input terminal N of the upper machine 11, the neutral line input terminal N of the workstation 12, and the neutral line input terminal N of the DC power supply 13;

[0047] It should be noted that the circuit breaker 18 includes a live wire input terminal 1 and a neutral wire input terminal 3, as well as a live wire output terminal 2 and a neutral wire output terminal 4. The live wire input terminal 1 and the neutral wire input terminal 3 are respectively arranged corresponding to the live wire output terminal 2 and the neutral wire output terminal 4.

[0048] In specific implementation, the ground wire terminals G of the display 400, chassis 5, switch 6, upper machine 11, workstation 12 and DC power supply 13 are respectively grounded through a grounding copper busbar. Therefore, adverse factors such as lightning and electricity can be effectively released to the ground, ensuring the normal safety of each device.

[0049] In the present invention, in a specific implementation, the first DC voltage output port (specifically, a DC12V output port) and the second DC voltage output port (specifically, a DC24V output port) on the DC power supply 13 are respectively connected to the first DC voltage input port (specifically, a DC12V input port) and the second DC voltage input port (specifically, a DC24V input port) on the chassis 5;

[0050] The first DC voltage input port (specifically, the DC12V input port) and the second DC voltage input port (specifically, the DC24V input port) on the chassis 5 are conductively connected to the board to be tested through rectangular electrical connectors installed on the motherboard inside the chassis 5.

[0051] In the present invention, the chassis 5 is used to test the lower-layer machine board to be tested (i.e., the lower-layer controller board to be tested) and provide a plug-in position for the board to be tested. Specifically, the chassis 5 is connected to the board to be tested through a rectangular electrical connector on the motherboard in the chassis 5 (specifically, a rectangular electrical connector of the ERNI brand model 103968), providing DC24V, DC12V and DC5V power supplies for the board to be tested.

[0052] The chassis 5 includes an AC220V input interface, which is connected to an external AC power supply (AC220V AC power supply) and converted into DC5V by an internal power module, and provided to the board to be tested through a rectangular electrical connector installed on the internal motherboard;

[0053] Among them, the chassis 5 also includes a first DC voltage input port (specifically a DC12V input port) and a second DC voltage input port (specifically a DC24V input port), which are output by the first DC voltage output port (specifically a DC12V output port) and the second DC voltage output port (specifically a DC24V output port) of the DC power supply 13, and then transferred to the motherboard installed inside the chassis through internal wiring. The motherboard provides DC24V and DC12V to the board to be tested through a rectangular electrical connector;

[0054] Among them, the first DC voltage output port (specifically the DC12V output port) of the DC power supply 13 is connected to the first DC voltage input port (specifically the DC12V input port) on the chassis 5, and is used to provide the analog signal acquisition and output voltage for the board to be tested;

[0055] The second DC voltage output port (specifically the DC24V output port) of the DC power supply 13 is connected to the second DC voltage input port (specifically the DC24V input port) on the chassis 5, and is used to provide the voltage for the switch signal acquisition and output for the board to be tested.

[0056] In the present invention, since the board to be tested is connected to the motherboard via the rectangular electrical connector along the board slot in the chassis 5 , the DC12V and DC24V voltages can be provided to the board to be tested.

[0057] It should be noted that the card slots within chassis 5 are 12 slots with guide rails configured on the cage of its structural frame. They provide test mounting locations for the boards to be tested, allowing them to smoothly connect to the ERNI 103968 rectangular electrical connectors on the motherboard within chassis 5. The configuration is a standard CPCI chassis, with slots spaced 6HP apart and plastic guide rails.

[0058] It should be noted that chassis 5 is a dedicated lower-layer machine simulation chassis for testing, using international standard CPCI technology. Chassis 5 contains a 19-inch wide, 6U high cage containing a structural frame, equipped with 12 slots with guide rails to provide test mounting locations for the boards to be tested.

[0059] It should be noted that the motherboard (PCB board) in the chassis 5 is installed with an ERNI 103968 rectangular electrical connector for connecting to the board to be tested and providing DC24V, DC12V and DC5V power supplies for the board to be tested; among them, 24V is the voltage for the board to be tested to collect and output switching signals; 12V is the voltage for the board to be tested to collect and output analog signals.

[0060] The chassis 5 is provided with a power line interface for DC24V, DC12V and DC5V power input.

[0061] The chassis 5 contains two identical 5V power modules (which can be mature finished power modules with existing technology). The 5V power module is used to convert the external AC220V input on the chassis 5 into DC5V, and then pass it through the motherboard in a dual-machine hot standby mode to provide DC5V power for the board to be tested.

[0062] In the present invention, the switch 6 is used for communication (general Ethernet LAN communication) between the upper-layer machine 11 and the workstation 12. The first network port 1 of the switch is connected to the network port of the upper-layer machine 11 via a network cable, and the second network port 2 of the switch is connected to the network port of the workstation 12 via a network cable.

[0063] In the present invention, the KVM switch 7 (i.e., a multi-computer switch) is used to control the upper computer 11 and the workstation 12 with a set of monitor, keyboard and mouse;

[0064] Among them, the first video input interface on the KVM switch 7 is connected to the video output interface on the upper machine 11 through a video cable (for example, a VGA cable); the second video input interface on the KVM switch 7 is connected to the video output interface on the workstation 12 through a video cable (for example, a VGA cable); the video output interface on the KVM switch 7 is connected to the video input interface on the monitor 400 through a video cable (for example, a VGA cable); the USB interface 1 and the USB interface 2 on the KVM switch 7 are connected to the mouse and keyboard respectively.

[0065] In the present invention, the DC power supply 13 is used to provide DC24V and DC12V power to the chassis 5. The DC power supply 13 (specifically, it can be a mature finished power supply module with existing technology) is used to convert the external AC power supply (AC220V AC power supply) into DC24V and DC12V, and then transmit the power to the chassis 5 through a power cable (for example, a 2-core 2.5m 2 The DC24V output port and the DC12V output port are connected to the DC24V input port and the DC12V input port of the chassis 5 respectively. The DC power supply 13 has an AC220V input port (i.e., a live wire access port), which is connected to the DC24V output port and the DC12V output port of the chassis 5 respectively through a power cable (e.g., a 2-core 2.5m 2 The power line) is connected to the live wire output terminal 2 of the circuit breaker (QF1) 18.

[0066] In the present invention, in specific implementation, the circuit breaker (QF1) 18 is a mature electrical component in the existing technology, for example, it can be a circuit breaker with model 5SY62327CC produced by Siemens, which is used to control the power supply and power failure of each device in the test device of the present invention.

[0067] It should be noted that, based on the technical solution of the present invention, it is possible to test whether the CAN (local area network) communication function of the third-layer lower machine in the entire TW-2 hump automatic control system is normal, that is, the CAN (local area network) communication function of the tested TW-2 hump automatic control system 100 (specifically the lower machine of the system, which is manifested as: the tested chassis in which the system is installed); and it is also possible to test whether the functions of the various lower-layer controllers included in the third-layer lower machine are normal.

[0068] It should be noted that the TW-2 hump automatic control system 100 (specifically, the system's lower-level unit, represented by the tested chassis in which it is installed) utilizes a dedicated embedded microcomputer module series. The tested chassis are uniformly 19 inches wide and 6U high, utilizing international standard CPCI technology. Each chassis can accommodate up to 12 control panels, generally divided into an interlocking and route control chassis (model: JL) and a speed regulation and length measurement control chassis (model: SD).

[0069] For the present invention, the lower-layer controllers (boards) included in the TW-2 hump automatic control system 100 (specifically, the lower-layer machine of the system, which is represented by: the tested chassis in which the system is installed) are as follows:

[0070] Approach control boards (models: KB-L, KB-LR) and input / output interface boards (models: IOB, IOB-R, referred to as IOB boards) for controlling shunting approaches, push approaches, and slipping approaches;

[0071] Reducer control board for speed control (model: KB-JA, KB-JA-R);

[0072] And, a length measuring board (model: CB, CB-R) for measuring the idle length of the track.

[0073] It should be noted that, before leaving the factory, the above-mentioned boards need to be taken out separately and placed in the chassis 5 to perform functional testing of the boards.

[0074] In the present invention, in a specific implementation, the testing device of the present invention further includes: a device cabinet 101;

[0075] On the front of the device cabinet 101, there are arranged in order from top to bottom: an IOB board (i.e., input / output interface board) output display light board (including multiple indicator lights) 2, a KB board (i.e., route control board) output display light board (including multiple indicator lights) 3, a display 400, a chassis 5, a switch 6, a KVM switch 7, a digital quantity acquisition control button board (including multiple control buttons) 8, an analog quantity acquisition control button board (including multiple control buttons) 9, a keyboard and mouse console 10, an upper-level machine 11, a workstation 12, and a DC power supply 13.

[0076] In specific implementation, the multiple indicator lights on the IOB board output display light board 200 are respectively connected to the multiple output channels on the input and output interface card (ie, one-to-one connection);

[0077] The multiple indicator lights on the KB board output display light board 300 are respectively connected to the multiple output channels on the access control board card (i.e., one-to-one connection);

[0078] It should be noted that the workstation 12 is used to forward the operation command (such as the command for blocking the route, which can be adjusted according to the actual situation and can be an operation command of any content) information to the KB board and IOB board to be tested. When the KB board (i.e., the route control board) and the IOB board (i.e., the input and output interface board) to be tested receive the operation command, the output channel thereon outputs a DC signal (for example, a DC 24V signal, the function of which is to trigger the indicator light to be always on), and displays the signal through the indicator light in the KB board output display light board 300 and the indicator light in the IOB board output display light board 200 respectively.

[0079] In the present utility model, 32 illuminated buttons are provided on the switch quantity acquisition control button board 8, of which 16 illuminated buttons are used for the switch quantity acquisition test control of the KB board, and the other 16 illuminated buttons are used for the switch quantity acquisition test control of the IOB board; the 32 illuminated buttons are respectively connected to the branch terminal group 15 by wiring.

[0080] In the present invention, 20 lighted buttons are provided on the analog quantity acquisition control button board 9 for analog quantity acquisition test control of the board, and the 20 lighted buttons are connected to the branch terminal assembly 15 respectively by wiring.

[0081] Specifically, a universal caster 14 (specifically a universal caster with a built-in braking function) is provided at each of the four corners of the bottom of the device cabinet 101. Therefore, the test device provided by the present invention can be conveniently moved.

[0082] In a specific implementation, the back of the device cabinet 101 is provided with a branch terminal assembly 15, a relay assembly 16 and an external AC power input terminal 17 in order from top to bottom.

[0083] In the present invention, the branch terminal assembly 15 has eight 3×18 column terminals, and each terminal of the branch terminal assembly 15 can be connected to wires in the front and back directions.

[0084] The back of the branch terminal is composed of 15 through 1mm 2 The wires are respectively connected to the multiple lighted buttons on the switch quantity acquisition control button board 8, the multiple lighted buttons on the analog quantity acquisition control button board 9, and the multiple relay contacts on the relay assembly 16;

[0085] The front of the branch terminal assembly 15 is connected to the motherboard on the chassis 5 through a 50-core cable, which mainly plays the role of collecting signals and communicating wiring transfer.

[0086] In this utility model, the relay group 16 has 16 relays, and uses 1mm 2 The wires are respectively connected to the branch terminal assembly 15 and the 16 illuminated buttons on the switch quantity acquisition control button board 8 (the illuminated buttons for switch quantity acquisition test control of the IOB board), which play the role of collecting the 64-channel switch quantity acquisition signals on the IOB board. Among them, every 4 output channels are respectively connected to a relay, and each relay is respectively connected to a illuminated button on the switch quantity acquisition control button board 8. The illuminated buttons are used for test control.

[0087] In a specific implementation, the external AC power source AC (for example, an AC220V AC power source) is connected to the external AC power source input terminal 17 .

[0088] It should be noted that, after the AC220V AC power source is connected through the external AC power source input terminal 17 , it is connected to the input terminal of the circuit breaker QF1 .

[0089] For specific implementation, see Figure 3 As shown, the circuit breaker (QF1) 18 is installed on the lower back side of the device cabinet 101.

[0090] In specific implementation, a lightning arrester (FL) 19 is also provided on the lower back side of the device cabinet 101;

[0091] The two connection terminals of the lightning arrester (FL) 19 are connected to the live wire terminal 2 and the neutral wire terminal 4 of the circuit breaker (QF1) 18 respectively.

[0092] It should be noted that the lightning arrester has two terminal blocks, one of which is marked as the ground wire or PE wire, and the other terminal is marked as the L wire or line line.

[0093] Specifically, a mouse and a keyboard are provided in the keyboard and mouse operating table 10 (specifically a drawer-type operating table that can be pulled back and forth, which is a common drawer structure currently available);

[0094] The mouse and keyboard in the keyboard and mouse console 10 are respectively connected to a USB communication interface on the KVM switch 7.

[0095] In the present invention, in specific implementation, the upper machine 11 and the workstation 12 are both industrial computers.

[0096] In terms of specific implementation, both the upper-layer computer 11 and the workstation 12 can adopt the existing Advantech 610H industrial computer.

[0097] In the present invention, the workstation 12 needs to be pre-installed with mature workstation simulation software (ie, program) in the prior art, so as to run the workstation simulation program during testing.

[0098] At the same time, the workstation 12 needs to copy the existing simulation test software (CARDTEST), which is used to send signal (i.e. data) output or acquisition commands to a specified output channel (or multiple channels) or a specified acquisition channel (or multiple channels) on the board to be tested.

[0099] As mentioned above, the boards to be tested are lower-level controller boards that need to be installed on the hump automatic control system, including: route control board (model: KB-L, KB-LR), input and output interface board (model: IOB, IOB-R), reducer control board (model: KB-JA, KB-JA-R), and length measurement board (model: CB, CB-R).

[0100] It should be noted that the CARDTEST software is an existing software program, and specifically the CARDTEST software V1.0.2 developed by Beijing Railway Signal and Communication Research and Design Institute Group Co., Ltd. may be used.

[0101] In the present invention, the upper machine 11 needs to be pre-copied with the mature upper machine simulation software (ie, program) in the prior art, so as to run the upper machine simulation program during the test.

[0102] In the present invention, the display 400 is used to provide a display function during testing.

[0103] It should be noted that, relying on the TW automatic control system graphic workstation simulation software (used to simulate the workstation) installed on the workstation 12, the workstation 12, as an existing device, can be used to simulate the control and display equipment (ie, workstation) of the on-site hump field.

[0104] The TW automatic control system graphic workstation simulation software, specifically version 2.5, is a mature, state-of-the-art software designed by the Beijing Railway Signal and Communication Research Institute. It simulates the control and display equipment (i.e., workstation) of a live hump field, issues operational instructions to the tested chassis (i.e., the TW-2 hump automatic control system, specifically the lower-level unit in the system), receives and displays real-time station information from the tested chassis, and receives and displays command execution results for the tested chassis. TW is the system model name, a Chinese abbreviation for the transliteration, with T standing for hump and W for microcomputer control.

[0105] In terms of specific implementation, relying on the TW configuration control system software installed on the upper machine 11 (this software is a mature software with existing technology and is used to simulate the upper machine), it is mainly used to complete the CAN communication status between the workstation 12 and the tested chassis (that is, the TW-2 type hump automatic control system, specifically the lower machine in the system), and realize the CAN communication function detection of the tested chassis.

[0106] Among them, the TW configuration control system software is a mature software with existing technology, specifically the TW configuration control system software designed by the Beijing Railway Communication and Signal Research Institute, software version V2.5, which is used to simulate the upper machine 11 of the on-site hump field, complete the CAN communication between the workstation 12 and the tested chassis (that is, the TW-2 hump automatic control system, specifically the lower machine in the system), and display the working status of the board card (that is, the lower controller) and the workstation 12 in the tested chassis, as well as the CAN communication status between these devices (that is, between the lower controller and the workstation 12).

[0107] In order to more clearly understand the technical solution of the present invention, the testing process of the present invention is described below.

[0108] 1. Test the functions of each lower-level controller included in the lower-level machine of the TW-2 hump automatic control system.

[0109] First, insert the test board to be tested (i.e., the lower-layer controller board to be tested, for example, the various types of access control boards, input / output interface boards, reducer control boards, and length measurement boards as described above) into the test position (specifically, the board slot) on the chassis 5;

[0110] Then, the RS232 communication interface of the workstation 12 is connected to the test port of the board to be tested in the chassis 5 through the RS232 communication line. The test port of the board to be tested is communicatively connected to the test position (specifically the board slot) of the chassis 5;

[0111] Then, the circuit breaker QF1 in the test device of the present invention is closed;

[0112] Next, turn on the power switch of the chassis 5 (i.e. the switch of the 5V voltage module), thereby connecting it to the external AC power supply (AC220V AC power supply) to provide power input for the 5V power supply module on the chassis 5;

[0113] Then, the display 400 and the workstation 12 on the test device of the present invention are turned on, and the CANTEST test software installed on the workstation 12 is run.

[0114] Next, use the CANTEST test software to drive the output bits on the tested board one by one. By observing the display interface of the CANTEST test software on the display 400 connected to the upper machine 11, and based on the status information displayed on the display interface, it is known whether the output function of the tested board (i.e., the output function of the output channel) is normal.

[0115] For example, use the CANTEST test software to drive all the multiple output bits on the tested board one by one. At this time, on the display interface of the display 400, the CANTEST test software displays "ON (i.e., output is enabled)" for each output bit corresponding to the test. If the corresponding indicator lights on the output display light board 2 of the corresponding IOB board (i.e., input and output interface board) and the output display light board 3 of the KB board (i.e., access control board) are all lit, then it means that the output bits (i.e., output channels) of the IOB board and KB board are functioning normally.

[0116] If the indicator lights on the output display light board 2 of the IOB board (i.e., the input and output interface board) are not all lit, it means that the output function of the output bit (i.e., the output channel) of the IOB board is abnormal, that is, not all output channels are normal; if the corresponding indicator lights on the output display light board 3 of the KB board are not lit, it means that the output function of the output bit (i.e., the output channel) of the KB board is abnormal, that is, not all output channels are normal.

[0117] It should be noted that in the present invention, the analog quantity does not need to detect the output function, because the analog quantity of the length measurement board is the length measurement signal (that is, the track idle length acquisition signal), which is only acquired and not output; the analog quantity of the reducer control board only has the radar signal and the pedal signal, and the radar signal and the pedal signal are both for speed measurement, and are also only acquired and not output.

[0118] Next, use the switch quantity acquisition control button board 8 and the analog quantity acquisition control button board 9, press the acquisition control buttons one by one, and by observing the display interface of the CANTEST test software on the display 400 connected to the upper machine 11, according to the status information displayed by the display interface, it is known whether the acquisition function of the tested board (i.e. the acquisition function of the acquisition channel) is normal. At this time, the tested board of the acquisition function on the vehicle is required, including the IOB board (input and output interface board), the KB board (approach control board), the reducer control board and the length measurement board.

[0119] These boards need to be tested for acquisition functions: (1) Each IOB board has 64 channels of switch acquisition signals. The main function of the IOB board is to transmit and process the system switch input and output signals, so it needs to be tested; (2) Each KB board has 16 channels of switch acquisition signals. The KB board functions as an access control board. It collects and performs logical operations on the relay signals of the system access (i.e., the KB board switch acquisition signals), and then transmits the processing commands to the lower-level equipment through the output signal. Therefore, it needs to be tested; (3) The analog quantity of the length measurement board is the length measurement signal, i.e., the track idle length acquisition signal, which is only acquired and not output; (4) The analog quantity of the reducer control board is only the radar signal and the pedal signal. The radar signal and the pedal signal are both used for speed measurement, and are also only acquired and not output.

[0120] For example, use the switch quantity acquisition control button panel 8 and the analog quantity acquisition control button panel 9 to press the acquisition control buttons one by one. If the acquisition bits corresponding to each tested board in the CANTEST test software turn from gray to red on the display interface of the display 400, it means that the acquisition functions of all tested boards (i.e., the acquisition functions of the acquisition channels) are normal.

[0121] If the acquisition position of one of the tested boards does not change from gray to red, it means that the acquisition function of the tested board (i.e. the acquisition function of the acquisition channel) is abnormal.

[0122] Therefore, for the present invention, as described above, for a board under test, if the output channels and acquisition channels of the board under test function normally, it means that the board under test functions normally.

[0123] 2. Test whether the CAN (local area network) communication function of the lower machine is normal, specifically test whether the communication between the lower machine and the upper machine in the TW-2 hump automatic control system is normal.

[0124] First, the CAN access port of the tested chassis (ie, the TW-2 hump automatic control system, specifically the lower machine in the system) is connected to the CAN communication port of the upper machine 11 through the CAN communication line.

[0125] It should be noted that the workstation 12 is a control and display device of the human-machine interface, which communicates with the upper machine 11 through Ethernet (network cable) and is used to issue operation instructions to the chassis under test (i.e., the TW-2 hump automatic control system, specifically the lower machine in the system), receive and display the real-time station information of the chassis under test, and receive and display the command execution results of the chassis under test, etc., to realize CAN communication verification of the chassis under test.

[0126] Correspondingly, the upper machine 11 transmits the received operation instructions of the workstation 12 to the tested chassis (i.e., the TW-2 hump automatic control system, specifically the lower machine in the system) through CAN communication, and transmits the command execution results of the tested chassis to the workstation 12 for display, and transmits the real-time information of the station in real time. At the same time, the upper machine 11 is used to display the CAN communication status of the tested chassis.

[0127] Then, the circuit breaker QF1 in the test device of the present invention is closed;

[0128] Next, turn on the original power switch of the chassis being tested;

[0129] Then, the display 400 , the upper machine 11 and the workstation 12 on the test device of the present invention are turned on, so that the interface information on the workstation 12 and the upper machine 11 are controlled by the KVM switch 7 and displayed on the display 400 .

[0130] Next, by observing the status list information displayed on the TW configuration control system interface (i.e., the display interface of the TW configuration control system software) on the upper machine 11, it is known whether the communication function of the tested chassis (i.e., the TW-2 type hump automatic control system, specifically the lower machine in the system) is normal.

[0131] For example, if the CAN communication function of the tested chassis is normal, in the display 400, the status list display information on the TW configuration control system interface (ie, the display interface of the TW configuration control system software) includes the following:

[0132] Local status: online;

[0133] Ethernet card status: normal;

[0134] CAN network card status: normal;

[0135] Host and workstation (i.e. workstation 12): 1 workstation is connected, i.e. the number of connected workstations.

[0136] In terms of specific implementation, it should be noted that in the status list on the TW configuration control system interface (i.e., the display interface of the TW configuration control system software), the sum of the number of board failures of the lower-level controller (i.e., the lower-level controller board in the tested chassis) and the number of functional board modules installed in the tested chassis should be 11; if the sum is greater than 11, the extra number is the number of CAN communication failures in the functional board modules in the tested chassis.

[0137] It should also be noted that the tested chassis (i.e., the TW-2 hump automatic control system, specifically, the lower-level machine in the system) is configured with a maximum of 11 functional boards. Without installing any boards, it is equivalent to no boards communicating with the lower-level controller. Therefore, in the status list on the TW configuration control system interface (i.e., the display interface of the TW configuration control system software), the number of board failures of the lower-level controller is displayed as 11. If, after installing the boards, several boards have normal CAN communication, the corresponding number of failures will be reduced by a few, so the sum of the number of installed boards and the number of failures should be 11.

[0138] For example, if there are four boards installed in the tested chassis (i.e., the TW-2 hump automatic control system, specifically, the lower-level machine in the system), and the status list shows that the lower-level controller (i.e., the lower-level controller board in the tested chassis): 7 boards are faulty, it means that the CAN communication function of 4 boards is normal;

[0139] If the status list shows that 8 boards are faulty for the lower-level controller (the lower-level controller board in the chassis being tested), it means that one of the four boards has a CAN communication failure. By plugging and unplugging the boards and comparing the changes in the number of faulty boards in the lower-level controller (that is, the lower-level controller board in the chassis being tested) in the status list, you can determine which board has a CAN communication failure.

[0140] Next, use the graphic window on the workstation 12. After performing a "braking" operation on the first reducer, you should be able to know that the reducer is in the braking position according to the interface display. After performing a "braking" or "relieving" operation on the first reducer, you should be able to know that the reducer is in the relief position according to the interface display. Observe whether the reducer status (i.e., position status) displayed on the graphic window is correct (i.e., consistent with the operation). If the status is correct, it indicates that the command issued by the workstation 12 is normally received on the tested device (i.e., TW-2 type hump automatic control system) through CAN communication, and the command execution result is successfully returned to the workstation 12, indicating that the CAN communication function is normal.

[0141] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A test device for the lower machine of a hump automatic control system, characterized in that: It includes a circuit breaker (18), a display (400), a chassis (5), a switch (6), a KVM switch (7), an upper machine (11), a workstation (12) and a DC power supply (13); wherein the input terminal of the circuit breaker (18) is connected to the output terminal of the external alternating current power source AC; The output end of the circuit breaker (18) is respectively connected to the display (400), the chassis (5), the switch (6), the upper machine (11), the workstation (12) and the power supply input end of the DC power supply (13); Wherein, the video output interface on the upper machine (11) is connected to the first video input interface on the KVM switch (7) via a video cable; A video output interface on the workstation (12) is connected to a second video input interface on the KVM switch (7) via a video cable; The video output interface on the KVM switch (7) is connected to the video input interface on the display (400) via a video cable; The network port of the upper machine (11) is connected to the first network port of the switch (6) via a straight-through network cable; The network port of the workstation (12) is connected to the second network port of the switch (6) via a straight-through network cable; The communication interface on the workstation (12) is connected to the board to be tested.

2. The test device for the lower layer machine of the hump automatic control system according to claim 1, characterized in that: The power supply end of the board to be tested is plugged into a rectangular electrical connector in the chassis (5); The RS232 communication interface on the workstation (12) is connected to the test port on the board to be tested in the chassis (5) via an RS232 communication line.

3. The testing device for the lower machine of the hump automatic control system according to claim 1, characterized in that: The CAN communication interface on the upper machine (11) is connected to the CAN access port of the lower machine of a hump automatic control system (100) to be tested via a CAN communication line.

4. The test device for the lower machine of the hump automatic control system according to claim 1, characterized in that: The live wire terminal L of the external AC power source AC is connected to the live wire input terminal (1) of the circuit breaker (18); The neutral terminal N of the external AC power source is connected to the neutral line input terminal (3) of the circuit breaker (18); The ground terminal PE of the external AC power supply is grounded; The live wire output terminal (2) of the circuit breaker (18) is respectively connected to the live wire input terminal L of the display (400), the live wire input terminal L of the chassis (5), the live wire input terminal L of the switch (6), the live wire input terminal L of the upper machine (11), the live wire input terminal L of the workstation (12), and the live wire input terminal L of the DC power supply (13); The neutral line output terminal (4) of the circuit breaker (18) is respectively connected to the neutral line input terminal N of the display (400), the neutral line input terminal N of the chassis (5), the neutral line input terminal N of the switch (6), the neutral line input terminal N of the upper machine (11), the neutral line input terminal N of the workstation (12) and the neutral line input terminal N of the DC power supply (13).

5. The testing device for the lower machine of the hump automatic control system according to claim 4, characterized in that: The ground terminals G of the display (400), chassis (5), switch (6), upper machine (11), workstation (12) and DC power supply (13) are grounded through a grounding copper busbar respectively.

6. The testing device for the lower machine of the hump automatic control system according to claim 1, characterized in that: The first DC voltage output port and the second DC voltage output port on the DC power supply (13) are respectively connected to the first DC voltage input port and the second DC voltage input port on the chassis (5); The first DC voltage input port and the second DC voltage input port on the chassis (5) are electrically connected to the board to be tested via rectangular electrical connectors installed on a motherboard inside the chassis (5).

7. The test device for the lower machine of the hump automatic control system according to any one of claims 1 to 6, characterized in that: Also includes: A device cabinet (101); The front of the device cabinet (101) is provided with an IOB board output display light board (200), a KB board output display light board (300), a display (400), a chassis (5), a switch (6), a KVM switch (7), a switch quantity acquisition control button board (8), an analog quantity acquisition control button board (9), a keyboard and mouse operating console (10), an upper machine (11), a workstation (12) and a DC power supply (13) in order from top to bottom.

8. The test device for the lower machine of the hump automatic control system according to claim 7, characterized in that: A universal caster (14) is respectively provided at the four corners of the bottom of the device cabinet (101).

9. The testing device for the lower machine of the hump automatic control system according to claim 7, characterized in that: A lightning arrester (19) is also provided on the lower back side of the device cabinet (101); The two connection terminals of the lightning arrester (19) are respectively connected to the live wire connection terminal (2) and the neutral wire connection terminal (4) of the circuit breaker (18).

10. The testing device for the lower machine of the hump automatic control system according to claim 7, characterized in that: The keyboard and mouse operating table (10) is equipped with a mouse and a keyboard; The mouse and keyboard in the keyboard and mouse console (10) are respectively connected to a USB communication interface on the KVM switch (7).

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