Relay comprehensive test platform for train control on-board equipment of motor train unit

Abstract

The utility model relates to a EMU train control vehicle -mounted equipment relay comprehensive test board, including test board ontology, be equipped with man -machine interaction all -in -one, contact resistance meter, voltage test meter, state indicating lamp, measured relay group, hygrodeik, measured 200C group case and program -controlled power on the test board ontology, still be equipped with switching power supply on the test board ontology, still be equipped with 200C group case switching combination, relay group switching combination, 200C group case test control panel and relay group test control panel in the test board ontology. The utility model can be without opening 200C group case, through to group case logic analysis, detects specific parameter, avoids the unnecessary damage to the equipment, simulates the state when the equipment normal use, detects the state of relay when normal work, reduces the workload after detection of installation, realizes the comprehensive automation test of relay performance, improves test efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of relay testing equipment technology, specifically to a comprehensive test bench for relays of train control onboard equipment. Background Technology

[0002] With the rapid development of high-speed rail in my country, ensuring the safe operation of high-speed trains has become crucial. Train control onboard equipment, as one of the key systems ensuring the safe operation of high-speed trains, directly affects the operational safety of the trains. Relays play a vital role in the control and signal transmission of train control onboard equipment. However, currently, my country only has basic testing equipment and methods, and compared with international advanced levels, it suffers from low automation, insufficient testing accuracy, and low levels of intelligence. Currently, there is a lack of comprehensive testing equipment specifically for relays in high-speed train control onboard equipment, making it impossible to comprehensively and accurately test the performance of relays. This poses challenges to the maintenance and fault diagnosis of train control onboard equipment. Therefore, developing an efficient, intelligent, and economical relay comprehensive test bench is of great significance for improving the testing level of train control onboard equipment in my country. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical defects and provide a comprehensive test bench for the relays of the train control on-board equipment of EMUs.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a comprehensive test bench for relays of onboard equipment for EMU train control, comprising a test bench body, wherein the test bench body is equipped with a human-machine interface, a contact resistance meter, a voltage test meter, a status indicator light, a relay group under test, a temperature and humidity meter, a 200C group box under test, and a programmable power supply; the test bench body is also equipped with a switching power supply; and the test bench body internally is further equipped with a 200C group box switching assembly, a relay group switching assembly, a 200C group box test control board, and a relay group test control board; the first ends of the contact resistance meter, voltage test meter, temperature and humidity meter, 200C group box test control board, relay group test control board, programmable power supply, and status indicator light are all connected to the human-machine interface. The electromechanical connection is as follows: Two contact resistance meters are provided, with their second ends connected to the 200C group box switching assembly and the relay group switching assembly, respectively; the relay group under test and the 200C group box under test are connected to the 200C group box switching assembly and the relay group switching assembly, respectively; the 200C group box switching assembly, the relay group switching assembly, the 200C group box test control board, and the relay group test control board are all connected to the switching power supply; the second end of the voltage test meter, the 200C group box switching assembly, and the relay group switching assembly are all electrically connected to the programmable power supply; the 200C group box switching assembly, the relay group switching assembly, the 200C group box test control board, and the relay group test control board are all electrically connected to the switching power supply.

[0005] Furthermore, the connection between the temperature and humidity meter, contact resistance meter, voltage tester, programmable power supply and human-machine interface is made using an RS474 communication cable.

[0006] Furthermore, the 200C group box test control board, relay group test control board, status indicator lights and human-machine interface are connected via USB cable.

[0007] Furthermore, the switching power supply provides three power supplies: 12V, 24V, and 110V. The second terminal of the status indicator light and the temperature and humidity meter are both connected to the 24V power supply of the switching power supply. The contact resistance meter and the voltage test meter are also connected to the 24V power supply of the switching power supply.

[0008] Furthermore, the 200C group box test control board and the relay group test control board both include power conversion, input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface, RS474 communication interface and MCU. The input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface and RS474 communication interface are all connected to the MCU.

[0009] Furthermore, the output control interface has four ports and the input acquisition interface has three ports.

[0010] The beneficial effects of this utility model are: without disassembling the 200C assembly box, specific parameters can be detected through logic analysis of the assembly box, avoiding unnecessary damage to the equipment; the state of the equipment during normal use can be simulated to detect the state of the relay during normal operation, reducing the workload of post-installation testing; and comprehensive automated testing of relay performance can be achieved, improving testing efficiency and accuracy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the integrated test bench for relays of the train control onboard equipment of the EMU.

[0012] Figure 2 This is a schematic diagram of the structure of the integrated test bench for relays of the train control onboard equipment of the EMU.

[0013] Figure 3 This is the circuit system diagram of this utility model;

[0014] Figure 4 It is the system block for the 200C group box test control board and the relay group test control board;

[0015] Figure 5 This is the first part of the MCU circuit diagram;

[0016] Figure 6 This is the second part of the MCU circuit diagram;

[0017] Figure 7 This is the third part of the MCU circuit diagram;

[0018] Figure 8 This is the fourth part of the MCU circuit diagram;

[0019] Figure 9 This is the circuit diagram for debugging the download interface;

[0020] Figure 10 This is a circuit diagram of a USB communication interface;

[0021] Figure 11 This is a circuit diagram for configuring the memory;

[0022] Figure 12 This is a circuit diagram of the log storage memory;

[0023] Figure 13 This is the circuit diagram for the indicator light;

[0024] Figure 14 This is a CAN communication interface circuit diagram;

[0025] Figure 15 This is the circuit diagram for the RS485 communication interface;

[0026] Figure 16 It is a circuit conversion circuit diagram;

[0027] Figure 17 This is a circuit diagram of an analog signal acquisition interface;

[0028] Figure 18 This is the circuit diagram for output control interface 1;

[0029] Figure 19 This is the circuit diagram for output control interface 2;

[0030] Figure 20 This is the circuit diagram for output control interface 3;

[0031] Figure 21 This is the circuit diagram for output control interface 4;

[0032] Figure 22 This is the circuit diagram of the input acquisition interface.

[0033] 1. Human-machine interface all-in-one machine; 2. Contact resistance meter; 3. Voltage tester; 4. Status indicator light; 5. Relay group under test; 6. Temperature and humidity meter; 7. 200°C relay box under test; 8. Programmable power supply. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0035] Embodiments of this utility model: such as Figure 1 , 2 As shown in Figure 3, the integrated test bench for relays of onboard equipment of EMU train control includes a test bench body. The test bench body is equipped with a human-machine interface 1, a contact resistance meter 2, a voltage meter 3, a status indicator light 4, a relay group under test 5, a temperature and humidity meter 6, a 200°C group under test housing 7, and a programmable power supply 8. The test bench body also includes a switching power supply. Inside the test bench body are a 200°C group switching assembly, a relay group switching assembly, a 200°C group test control board, and a relay group test control board. The first terminals of the contact resistance meter 2, voltage meter 3, temperature and humidity meter 6, 200°C group test control board, relay group test control board, programmable power supply 8, and status indicator light 4 are all electrically connected to the human-machine interface 1. The contact resistance meter 2 is provided in two parts, and the second end of the two contact resistance meters 2 is respectively connected to the 200C group box switching combination and the relay group switching combination; the relay group 5 under test and the 200C group box 7 under test are respectively connected to the 200C group box switching combination and the relay group switching combination; the 200C group box switching combination, the relay group switching combination, the 200C group box test control board, and the relay group test control board are all connected to the switching power supply; the second end of the voltage test meter 3, the 200C group box switching combination, and the relay group switching combination are all electrically connected to the programmable power supply 8; the 200C group box switching combination, the relay group switching combination, the 200C group box test control board, and the relay group test control board are all electrically connected to the switching power supply.

[0036] like Figure 3 As shown, the temperature and humidity meter 6, contact resistance meter 2, voltage tester 3, programmable power supply 8 and human-machine interface 1 are connected by an RS474 communication cable.

[0037] like Figure 3 As shown, the 200C group box test control board, relay group test control board, status indicator 4 and human-machine interface are connected via USB cable.

[0038] like Figure 3As shown, the switching power supply provides three power supplies: 12V, 24V, and 110V. The second terminals of the status indicator 4 and the temperature and humidity meter 6 are both connected to the 24V power supply of the switching power supply. The contact resistance meter 2 and the voltage test meter 3 are also connected to the 24V power supply of the switching power supply.

[0039] like Figure 4-19 As shown, the 200C group box test control board and the relay group test control board both include power conversion, input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface, RS474 communication interface and MCU. The input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface and RS474 communication interface are all connected to the MCU.

[0040] like Figure 5-9 As shown, it is worth noting that the MCU consists of U1A, U1B, U1C, and U1D, and the debug download interface consists of J1 and J2.

[0041] like Figure 18-19 As shown, there are four output control interfaces and three input acquisition interfaces.

[0042] It is worth noting that the working principle of the 200C group box test control board and the relay group test control board is as follows: the host computer issues control commands, outputs control to the corresponding channel, controls the switching combination, and switches the corresponding test channel to the corresponding test equipment; after the test equipment completes the test, the host computer reads the results and completes the test.

[0043] In practice:

[0044] 1) Contact resistance test: The four-wire resistance test method is adopted. The contacts of the relay under test are switched one by one to the contact resistance meter through the relay switching combination.

[0045] 2) Action time test: The differential time test method is used to calculate the action time by collecting the time difference from the relay being powered on to the relay contacts being in place.

[0046] 3) Operating voltage test: The operating voltage of the relay is determined by gradually increasing the voltage by controlling the programmable power supply and collecting the status of the relay contacts.

[0047] 4) Relay logic test: By simulating the logic of relays working normally in the equipment, the output of the relay group is collected to determine whether the logic of the relay group or the 200C group box is correct.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0050] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A comprehensive test bench for relays of onboard equipment for train control systems of high-speed trains, comprising a test bench body, characterized in that: The test bench body is equipped with a human-machine interface (1), a contact resistance meter (2), a voltage test meter (3), a status indicator (4), a relay group under test (5), a temperature and humidity meter (6), a 200C group box under test (7), and a programmable power supply (8). The test bench body is also equipped with a switching power supply. The test bench body is also equipped with a 200C group box switching combination, a relay group switching combination, a 200C group box test control board, and a relay group test control board. The first end of the contact resistance meter (2), voltage test meter (3), temperature and humidity meter (6), 200C group box test control board, relay group test control board, programmable power supply (8), and status indicator (4) are all electrically connected to the human-machine interface (1). Table (2) has two terminals. The second terminals of the two contact resistance meters (2) are connected to the 200C group box switching combination and the relay group switching combination, respectively. The relay group (5) to be tested and the 200C group box (7) to be tested are connected to the 200C group box switching combination and the relay group switching combination, respectively. The 200C group box switching combination, the relay group switching combination, the 200C group box test control board, and the relay group test control board are all connected to the switching power supply. The second terminal of the voltage test meter (3), the 200C group box switching combination, and the relay group switching combination are all electrically connected to the programmable power supply (8). The 200C group box switching combination, the relay group switching combination, the 200C group box test control board, and the relay group test control board are all electrically connected to the switching power supply.

2. The integrated test bench for relays of onboard equipment for train control of high-speed trains according to claim 1, characterized in that: The temperature and humidity meter (6), contact resistance meter (2), voltage tester (3), programmable power supply (8) are connected to the human-machine interface (1) via an RS474 communication cable.

3. The integrated test bench for relays of onboard equipment for train control of high-speed trains according to claim 2, characterized in that: The 200C group box test control board, relay group test control board, status indicator (4) and human-machine interaction all-in-one machine are connected by a USB cable.

4. The integrated test bench for relays of onboard equipment for train control of high-speed trains according to claim 1, characterized in that: The switching power supply provides three power supplies: 12V, 24V, and 110V. The second terminals of the status indicator (4) and the temperature and humidity meter (6) are connected to the 24V power supply of the switching power supply. The contact resistance meter (2) and the voltage test meter (3) are also connected to the 24V power supply of the switching power supply.

5. The integrated test bench for relays of onboard equipment for train control of high-speed trains according to claim 1, characterized in that: The 200C group box test control board and relay group test control board both include power conversion, input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface, RS474 communication interface and MCU. The input acquisition interface, output control interface, analog input interface, indicator light, configuration memory, log memory, debug download interface, USB communication interface, CAN communication interface and RS474 communication interface are all connected to the MCU.

6. The integrated test bench for relays of onboard equipment for train control of high-speed trains according to claim 5, characterized in that: The system has four output control interfaces and three input acquisition interfaces.

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