TCMS network system equipment test bench
By designing an integrated TCMS network system equipment test bench and employing high-precision detection sensors and automated detection functions, the problems of low testing efficiency and low detection accuracy in existing technologies have been solved, achieving efficient and accurate TCMS equipment testing and fault diagnosis.
Patent Information
- Application Number
- CN202520095235.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing technologies for TCMS network system equipment suffer from low testing efficiency, low detection accuracy, and high dependence on the technical level of testers, making it difficult to accurately determine the cause of failures. This results in cumbersome testing processes, low detection accuracy, and low reliability.
A test bench for TCMS network system equipment was designed, integrating components such as a cabinet, test bench display screen, industrial control computer, programmable power supply, IO acquisition module and MVB communication test box. It adopts aviation plug interface and integrated design, is equipped with high-precision detection sensors and automated detection function, provides intelligent diagnosis and fault location, and simplifies the testing process.
It improves testing efficiency and accuracy, reduces human error, enhances testing accuracy and fault diagnosis efficiency, and meets the commissioning and factory inspection requirements of the TCMS train network control system.
Smart Images
Figure CN223899226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a TCMS network system equipment test bench. Background Technology
[0002] In the existing technology, routine testing has always been carried out by using test fixtures to test various functional items. However, this testing method has many drawbacks.
[0003] First, the testing efficiency is low. The testing process is cumbersome and complex, requiring adjustments to the test fixtures according to different test items. Frequent fixture changes not only easily cause damage but also affect the test results. At the same time, it is highly dependent on the technical level and number of testing personnel, increasing the uncertainty of the testing process.
[0004] Secondly, the testing accuracy is low. Accurate assessment of RIOM chassis I / O function testing and MVB communication function testing is not possible. Previous methods often relied on the test sample itself generating and receiving data, or on accompanying testing equipment, allowing only basic testing and assessment, not parameter-level assessment. This made it difficult to screen out products with substandard parameter performance, resulting in low testing accuracy.
[0005] Furthermore, when test items fail, it is difficult to determine whether the problem lies with the test fixture or the equipment. This places high demands on the technical skills of the testers, increasing the difficulty and time cost of troubleshooting. In summary, existing test fixture testing methods suffer from low testing efficiency, low detection accuracy, low reliability, and high requirements for the technical skills of testers, urgently requiring a new technical solution to address these issues.
[0006] In view of this, a test bench for TCMS network system equipment is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a TCMS network system equipment test bench, which has the advantages of high testing efficiency and high detection accuracy.
[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0009] A TCMS network system equipment test bench includes a cabinet, a test bench display screen, test bench operating status indicator lights, a main control switch, a power connector, an Ethernet connector, an MVB connector, an IO connector, an AIO connector, an industrial control computer, a programmable power supply, an IO acquisition module, a CAN test board, and an MVB communication test box. The test bench display screen, test bench operating status indicator lights, main control switch, power connector, Ethernet connector, MVB connector, IO connector, AIO connector, industrial control computer, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are housed in the cabinet. The test bench display screen, test bench operating status indicator lights, main control switch, power connector, Ethernet connector, MVB connector interface, IO connector, AIO connector, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are connected to the industrial control computer.
[0010] In a preferred embodiment, the external interfaces of the power connector, Ethernet connector, MVB connector, IO connector and AIO connector are all in the form of aviation connectors, namely power connector aviation connector, Ethernet connector aviation connector, MVB connector aviation connector, IO connector aviation connector and AIO connector aviation connector respectively.
[0011] In a preferred embodiment, the cabinet is provided with a display area and an interface area. The display screen, test bench working indicator light and main control switch are located in the display area, and the power connector, Ethernet connector, MVB connector, IO connector and AIO connector are located in the interface area.
[0012] In a preferred embodiment, a test sample placement platform is provided below the interface area.
[0013] In a preferred embodiment, the top of the interface area is provided with a socket, the socket is provided with a plug plate, the edge of the plug plate is provided with an observation mirror, the inner wall side of the socket is provided with a slider, and the side of the plug plate is provided with a sliding groove that cooperates with the slider.
[0014] In a preferred embodiment, the observation mirror includes a rotating cylinder, a rotating wheel, and a mirror body. The insert plate is provided with a mounting groove, the rotating cylinder is disposed in the mounting groove, the rotating cylinder is provided with a mounting surface, the mirror body is disposed on the mounting surface, and the rotating wheel is disposed on the rotating cylinder.
[0015] In a preferred embodiment, the bottom of the cabinet is provided with an equipment storage cabinet.
[0016] In a preferred embodiment, it further includes an electronic load, a plurality of fixed resistors, and a plurality of capacitive loads.
[0017] In a preferred embodiment, the programmable power supply is configured as a DC adjustable power supply, and three units are provided.
[0018] Compared with the prior art, the TCMS network system equipment test bench of this utility model is mainly used for debugging and factory inspection tests of intelligent control products such as TCMS train network control system (VCU train central control unit, RIOM remote input / output unit, REP repeater). Used to test whether the functions and performance parameters of assembled products meet technical requirements, the test bench employs high-precision sensors such as current detection modules, voltage detection modules, and analog quantity monitoring modules to accurately diagnose the performance parameters of the tested equipment, avoiding the errors and omissions of previous solutions. The test bench allows for pre-defined testing strategies; testers only need to configure the corresponding test equipment parameters and necessary experimental parameters in advance for automated testing. With the testers assisting, the test bench automatically generates test reports after the test is completed, reducing the impact of human error and improving both efficiency and accuracy. The test bench also provides intelligent diagnostic judgment functions; when a test fails, it automatically reports the specific fault diagnosis results and fault detection parameters, facilitating rapid location of the test equipment's fault point and improving troubleshooting efficiency. Furthermore, the test bench provides test debugging functions, facilitating designers to debug equipment functions and the TCMS system software development process. Attached Figure Description
[0019] Figure 1 This utility model relates to a structural schematic diagram of a TCMS network system equipment test bench (first perspective).
[0020] Figure 2 This utility model relates to a structural schematic diagram of a TCMS network system equipment test bench (first perspective).
[0021] Figure 3 This utility model relates to a schematic diagram of the plug-in board of a TCMS network system equipment test bench.
[0022] Figure 4 This utility model relates to a schematic diagram of the longitudinal section structure of the insert plate of a TCMS network system equipment test bench.
[0023] Figure 5 This utility model relates to a schematic diagram of the hardware platform construction in a TCMS network system equipment test bench REP test scheme.
[0024] Figure 6 This utility model relates to a schematic diagram of the hardware platform construction in a VCU testing scheme for a TCMS network system equipment test bench.
[0025] Figure 7 This utility model relates to a schematic diagram of the hardware platform construction in the RIOM test scheme of a TCMS network system equipment test bench.
[0026] Figure 8 This utility model relates to a schematic diagram of the Ethernet test hardware topology in the RIOM test scheme of a TCMS network system equipment test bench.
[0027] Figure 9 This utility model relates to a schematic diagram of the MVB test hardware topology in the RIOM test scheme of a TCMS network system equipment test bench.
[0028] In the picture
[0029] 1. Cabinet; 2. Test bench display screen; 3. Test bench working status indicator and main control switch; 4. Display area; 5. Interface area; 6. Power connector, Ethernet connector and MVB connector interface plugs; 7. IO connector and AIO connector interface plugs; 8. Test sample placement platform; 9. Socket; 10. Insertion plate; 11. Observation mirror; 12. Slide rail; 13. Rotary cylinder; 14. Rotating wheel; 15. Mirror body; 16. Mounting slot; 17. Mounting plane; 18. Equipment storage cabinet. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings.
[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0032] like Figure 1As shown, a TCMS network system equipment test bench includes a cabinet 1, a test bench display screen 2, test bench operating status indicator lights, a main control switch, a power connector, an Ethernet connector, an MVB connector, an IO connector, an AIO connector, an industrial control computer, a programmable power supply, an IO acquisition module, a CAN test board, and an MVB communication test box. The test bench display screen 2, test bench operating status indicator lights, main control switch, power connector, Ethernet connector, MVB connector, IO connector, AIO connector, industrial control computer, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are located in the cabinet 1. The test bench display screen 2, test bench operating status indicator lights, main control switch, power connector, Ethernet connector, MVB connector interface, IO connector, AIO connector, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are connected to the industrial control computer. In the above structural setup, the test bench adopts an integrated design. The external display screen allows for human-computer interaction with the test personnel. The test personnel control the test bench through the test bench control software. The external panel has indicator lights for the test bench's working status and the main power switch for the test bench. The main industrial control computer, programmable power supply, IO acquisition module, etc. of the test bench are arranged inside the cabinet 1.
[0033] The control of an industrial control computer includes: the industrial control computer, display screen, keyboard and mouse and other operating devices, and related communication devices such as MVB, 485 and CAND.
[0034] The test bench for the test specimen includes: a programmable power supply, input / output modules, a detection module, a PWM generator, an electronic load, and fixed resistors.
[0035] Furthermore, the external interfaces of the power connector, Ethernet connector, MVB connector, IO connector, and AIO connector all adopt aviation plug type, namely power connector aviation plug, Ethernet connector aviation plug, MVB connector aviation plug, IO connector aviation plug, and AIO connector aviation plug, respectively. The use of aviation plug type for all external interfaces ensures convenient and quick connection.
[0036] Furthermore, the cabinet 1 is provided with a display area 4 and an interface area 5. The display screen, test bench working indicator light and main control switch are located in the display area 4, and the power connector, Ethernet connector, MVB connector, IO connector and AIO connector are located in the interface area 5.
[0037] Furthermore, a test sample placement platform 8 is provided below the interface area 5 for placing the test sample.
[0038] Furthermore, such as Figures 1 to 4As shown, the top of the interface area 5 is provided with a socket 9, a plug plate 10 is provided in the socket 9, an observation mirror 11 is provided on the edge of the plug plate 10, a slider is provided on the inner wall side of the socket 9, and a sliding groove 12 that cooperates with the slider is provided on the side of the plug plate 10.
[0039] In the above structural design, firstly, the observation lens 11 equipped on the edge of the insertion plate 10 provides convenience for the user, allowing for direct observation of the interface status of the test sample during interface connection operations. This ensures accurate and smooth connection, effectively avoiding connection errors caused by unclear interface conditions. Secondly, the insertion plate 10 and the socket 9 are designed for pluggability through the cooperation of a slider and a groove 12. When the insertion plate 10 is inserted into the socket 9, the observation lens 11 can perform its function normally, assisting in interface operation. When the insertion plate 10 is removed, it can also serve as a temporary storage platform, such as for placing small tools, parts, or auxiliary items related to the interface, making them easily accessible during operation and improving the overall convenience and efficiency of the operation.
[0040] Furthermore, the observation mirror 11 includes a rotating cylinder 13, a rotating wheel 14, and a mirror body 15. The insert plate 10 has a mounting groove 16, the rotating cylinder 13 is disposed in the mounting groove 16, the rotating cylinder 13 has a mounting surface 17, the mirror body 15 is disposed on the mounting surface 17, and the rotating wheel 14 is disposed on the rotating cylinder 13. When the test bench is idle, the observation mirror 11 can be easily rotated using the rotating wheel 14, allowing the mirror body 15 to be screwed into the mounting groove 16. At this time, the rotating cylinder 13 can seal the mounting groove 16. In this way, the mirror body 15 is effectively protected, preventing damage from external factors such as dust or impacts during idle periods.
[0041] Furthermore, the bottom of the cabinet 1 is provided with an equipment storage cabinet 18, which can be used to store two sets of TCMS system equipment, cable fixtures, etc.
[0042] Furthermore, the TCMS network system equipment test bench of this embodiment also includes an electronic load, multiple fixed resistors, and multiple capacitive loads.
[0043] The test bench can perform routine tests such as REP, VCU, and RIOM, and can perform PT100, analog output, analog input, and PWM tests on IO devices. The analog test requires 6 channels of 0-15V and 6 channels of 0-40mA analog output, and 2 channels of PT100 test. It is equipped with two sets of PWM generators with a frequency of 0-10kHz and a current of 0-20mA.
[0044] I. REP Test Plan
[0045] 1. Hardware platform setup, such as Figure 5 As shown.
[0046] 1) Connect the test equipment to the power supply, adjust the power supply output to the repeater working voltage (24VDC / 110VDC), and turn on the power;
[0047] 2) Connect the power cables to the power interfaces PWRA and PWRB and then to the regulated power supply. Adjust the output of the regulated power supply to the repeater's operating voltage (24VDC / 110VDC) and turn on the power.
[0048] 3) When testing the X channel: Connect one end of the MVB box to the PC via the MVB test cable, and the other end to repeater X1. Repeater X2 is connected to the test device.
[0049] 4) When testing the Y channel: Connect one end of the MVB box to the PC via the MVB test cable, and the other end to repeater Y1. Connect repeater Y2 to the test device.
[0050] II. VCU Test Plan
[0051] 1. Hardware Platform Setup
[0052] like Figure 6 As shown, before the test, connect the VCU chassis power supply plug (note that the power cord number on the test bench corresponds to the power board plug number), Ethernet connector, MVB connector, insert the 4G card (for chassis equipped with a WAN card), and burn the test program.
[0053] III. RIOM Test Plan
[0054] Test bench testing hardware platform, such as Figure 7 As shown.
[0055] The test bench can simultaneously test 3 sets of DI boards, 3 sets of DO boards, 3 sets of DIO boards, and 2 sets of AIO analog boards for the RIOM chassis.
[0056] The hardware testing section is divided into device power supply, DI testing, DIO testing, DO testing, and AIO testing, as detailed below:
[0057] 1. Equipment power supply: The industrial control computer communicates with the programmable power supply via 485 and adjusts the output voltage value according to the voltage level of the test sample (110V / 24V).
[0058] 2. DI Test: The test DI board is equipped with 32 acquisition channels. The industrial control computer is first connected to a 24 / 110V switching relay control module to switch different voltage levels to the DI board test circuit. After the 24 / 110V switching relay control module, three DI switching relay modules are connected. Each module is equipped with 32 points that can correspond to the 32 acquisition points of the test DI board. Each of the three DI switching relay modules corresponds to one DI board. The number of DI switching relay modules can be configured according to the actual number of DI boards in the RIOM chassis. All these operations are completed automatically by the test bench after the parameters are set.
[0059] 3. DIO Testing: The DIO board of the test product is configured with 16 acquisition channels and 8 output channels. The industrial control computer is first connected to a 24 / 110V switching relay control module to switch different voltage levels to the DIO board test circuit. After the 24 / 110V switching relay control module, three DIO switching relay modules are connected. Each module is equipped with at least 16 points that can correspond to the 16 acquisition points of the DIO board being tested. Each of the three DIO switching relay modules corresponds to one DIO board. The number of DIO switching relay modules can be configured according to the actual number of DIO boards in the RIOM chassis. The number of DIO switching relay modules to use can be selected. These operations are all completed automatically by the test bench after the parameters are set.
[0060] The output circuit of the DIO board is connected to a 24 / 110V voltage sensor switching relay module. The 24V and 110V voltage sensors are then connected to the relay module, respectively. The industrial control computer controls the connection of either the 24V or 110V voltage acquisition sensor. Simultaneously, a current sensor is connected to the output of the DIO board. The voltage and current sensors are connected to the industrial control computer via a 485 bus, returning the detection results to the computer for diagnostic analysis. Each DIO board is configured with one set of output detection circuits, which can be configured according to the number of DIO boards in the RIOM chassis. The number of output detection circuits can be selected and used, and these operations are automatically adapted by the test bench after parameter settings.
[0061] 4. DO Test: The test DO board is configured with 12 outputs. The output circuit of the DO board is connected to a 24 / 110V voltage sensor switching relay module. The 24V and 110V voltage sensors are connected to the relay module, respectively. The industrial control computer controls the connection of the 24V or 110V voltage acquisition sensor. At the same time, the output of the DO board is connected to a current sensor. The voltage and current sensors are connected to the industrial control computer via a 485 bus to return the test results to the industrial control computer for diagnosis and judgment. Each DO board is configured with one set of output detection circuits. The number of output detection circuits can be selected according to the actual number of DO boards in the RIOM chassis. These operations are all completed automatically by the test bench after parameter settings.
[0062] 5. AIO Test: The AIO board of the test product is configured with 6 analog inputs and 4 analog outputs. When performing analog voltage tests, the industrial control computer is connected to the programmable power supply 3, and then connected to the input relay switching module. The module has 6 points, which correspond to the 6 analog input acquisition points of the AIO board of the test product. When performing analog current tests, the industrial control computer is connected to the analog control board, which controls the analog board to output between 0-40mA. The analog control board is then connected to the relay switching module, which has 6 points, which correspond to the 6 analog input acquisition points of the AIO board of the test product.
[0063] 5. Load test: When conducting a load test, the output point of the test DO board or DIO board is first connected to the load switching relay, and then a 12Ω or 55Ω resistor is connected. The industrial control computer controls the load switching relay to select whether to connect a 12Ω or 55Ω resistor. These operations are all completed automatically by the test bench after the test bench parameters are set.
[0064] 6. Ethernet Test: The tester connects the cables, sets the relevant parameters in the host computer, and clicks "Start Test." The host computer automatically records and judges the test results. (IP address is adjustable). The test hardware topology is as follows: Figure 8 As shown.
[0065] 7. MVB Test: Verify that the physical layers of the MVB1 and MVB2 channels on the chassis MVB board are normal and can communicate normally. The host computer is connected to the MVB test box, which is then connected to the switching module (composed of four relays used to switch four MVB communication lines). The switching module is connected to the MVB communication board of the RIOM chassis under test. The tester connects the lines, sets the relevant parameters in the host computer, and clicks "Start Test." The host computer automatically records and judges the test results. The test hardware topology is as follows: Figure 9 As shown.
[0066] Before the test, connect the RIOM chassis power supply plug (note that the power cord number on the test bench corresponds to the plug number on the power board), Ethernet connector, MVB connector, and 48-pin I / O connector. Note that the 48-pin number on the test bench corresponds to the connector on the chassis.
[0067] After completing the external wiring of the RIOM chassis, log in to the test bench control software and select the corresponding RIOM configuration for the corresponding project on the main interface of the test bench software.
[0068] The above description of the embodiments is provided to facilitate understanding and use of the present invention by those skilled in the art. It is obvious to those skilled in the art that various modifications can be easily made to the embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.
Claims
1. A TCMS network system equipment test bench, characterized in that, The system includes a cabinet, a test bench display screen, test bench status indicator lights, a main control switch, a power connector, an Ethernet connector, an MVB connector, an IO connector, an AIO connector, an industrial computer, a programmable power supply, an IO acquisition module, a CAN test board, and an MVB communication test box. The test bench display screen, test bench status indicator lights, main control switch, power connector, Ethernet connector, MVB connector, IO connector, AIO connector, industrial computer, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are housed in the cabinet. The test bench display screen, test bench status indicator lights, main control switch, power connector, Ethernet connector, MVB connector interface, IO connector, AIO connector, programmable power supply, IO acquisition module, CAN test board, and MVB communication test box are connected to the industrial computer.
2. The TCMS network system equipment test bench according to claim 1, characterized in that, The external interfaces of the power connector, Ethernet connector, MVB connector, IO connector and AIO connector are all made using aviation connectors, namely power connector aviation connector, Ethernet connector aviation connector, MVB connector aviation connector, IO connector aviation connector and AIO connector aviation connector respectively.
3. The TCMS network system equipment test bench according to claim 2, characterized in that, The cabinet is equipped with a display area and an interface area. The display screen, test bench working indicator light and main control switch are located in the display area, and the power connector, Ethernet connector, MVB connector, IO connector and AIO connector are located in the interface area.
4. The TCMS network system equipment test bench according to claim 3, characterized in that, A test sample placement platform is provided below the interface area.
5. The TCMS network system equipment test bench according to claim 3, characterized in that, The top of the interface area is provided with a socket, a plug plate is provided in the socket, an observation mirror is provided on the edge of the plug plate, a slider is provided on the inner wall side of the socket, and a sliding groove is provided on the side of the plug plate to cooperate with the slider.
6. The TCMS network system equipment test bench according to claim 5, characterized in that, The observation mirror includes a rotating cylinder, a rotating wheel, and a mirror body. The insert plate is provided with a mounting groove, the rotating cylinder is disposed in the mounting groove, the rotating cylinder is provided with a mounting surface, the mirror body is disposed on the mounting surface, and the rotating wheel is disposed on the rotating cylinder.
7. The TCMS network system equipment test bench according to claim 1, characterized in that, The bottom of the cabinet is equipped with an equipment storage cabinet.
8. The TCMS network system equipment test bench according to claim 1, characterized in that, It also includes electronic loads, multiple fixed resistors, and multiple capacitive loads.
9. The TCMS network system equipment test bench according to claim 1, characterized in that, The programmable power supply is a DC adjustable power supply, and three units are provided.