A train testing system, method, apparatus, equipment and medium

Abstract

This application discloses a train testing system, method, apparatus, equipment, and medium, relating to the field of rail transit technology. The system includes: a transmitting antenna connected to an under-vehicle switch for transmitting test data collected by the under-vehicle switch; an under-vehicle switch connected to an under-vehicle testing unit for collecting test data generated by the under-vehicle testing unit, the under-vehicle testing unit including multiple test sensors and connected to corresponding data acquisition hosts; and an on-vehicle switch connected to a receiving antenna for processing the test data received by the receiving antenna to complete the train test. The system utilizes a transmitting and receiving antenna for data transmission between the on-train and under-vehicle areas, and places the under-vehicle testing units containing test sensors and data acquisition hosts under the train. This avoids the need for numerous test cables, reduces electromagnetic radiation from the train, ensures electromagnetic radiation testing meets standards, and guarantees the safety of the train test.

Description

Technical Field

[0001] This application relates to the field of rail transit technology, and in particular to a train testing system, method, apparatus, equipment and medium. Background Technology

[0002] With the rapid development of railway tracks, distributed data acquisition systems have emerged. Traditional distributed data acquisition systems install acquisition devices on the train and corresponding sensors underneath. The separate installation of numerous acquisition devices and sensors results in a large number of test cables running from the train's surface to its interior. Each test cable acts as an antenna during testing. Therefore, these test cables running on the train's surface radiate electromagnetic signals from various power sources underneath the train through conduction and spatial coupling, increasing the train's external radiation levels and causing electromagnetic radiation tests to exceed standards. Furthermore, because the test cables are connected with tape during wiring, their stability is poor, and they are prone to detachment during train operation, leading to test failures and potential safety hazards.

[0003] Given the aforementioned problems, finding ways to ensure that the electromagnetic radiation of trains does not exceed the standards and to guarantee the safety of train testing is a problem that those skilled in the art are striving to solve. Summary of the Invention

[0004] The purpose of this application is to provide a train testing system, method, apparatus, equipment, and medium to ensure that the electromagnetic radiation of the train does not exceed the standard and to guarantee the safety of the train test.

[0005] To solve the above-mentioned technical problems, this application provides a train testing system, including: a transmitting antenna, a receiving antenna, an under-vehicle switch, an on-vehicle switch, and an under-vehicle testing unit;

[0006] The transmitting antenna is connected to the under-vehicle switch and is used to transmit the test data collected by the under-vehicle switch.

[0007] The under-vehicle switch is connected to the under-vehicle test unit and is used to collect the test data generated by the under-vehicle test unit. The under-vehicle test unit includes test sensors corresponding to multiple test items and is connected to the corresponding data acquisition host.

[0008] The onboard switch is connected to the receiving antenna and is used to process the test data received by the receiving antenna in order to complete the train test.

[0009] Preferably, it also includes: an industrial control computer and a vehicle-grade host computer;

[0010] The industrial control computer is connected to each data acquisition host in the under-vehicle testing unit to receive the test data collected by the data acquisition host and to synchronize the test data.

[0011] The vehicle-level host connects to the industrial control computer and the vehicle-mounted switch to receive test data synchronized by the industrial control computer and send it to the vehicle-mounted switch according to a preset relationship.

[0012] Preferably, it also includes: a DC-DC converter and a junction box;

[0013] The DC-DC converter is connected to the junction box, which in turn is connected to the vehicle-level host, industrial control computer, vehicle-mounted switch, and data acquisition host, so that the vehicle-level host, industrial control computer, vehicle-mounted switch, and data acquisition host can be powered through the junction box respectively.

[0014] Preferably, it further includes: an in-vehicle display unit;

[0015] The onboard display unit is connected to the onboard switch to display test data.

[0016] Preferably, the number of test sensors is equal to the number of data acquisition hosts.

[0017] To address the aforementioned technical problems, this application provides a train testing method applied to a train testing system equipped with a transmitting antenna, a receiving antenna, an undercarriage switch, an on-board switch, and an undercarriage test unit. The method includes:

[0018] Collect test data generated by the under-vehicle test unit and transmit the test data to the under-vehicle switch;

[0019] The under-vehicle switch transmits test data to the receiving antenna via the transmitting antenna.

[0020] The onboard switchboard processes the test data received by the receiving antenna to complete the train test.

[0021] Preferably, it further includes:

[0022] The test data is synchronized via an industrial control computer and then transmitted to the under-vehicle switch.

[0023] Preferably, before synchronizing test data via an industrial control computer, the following steps are also included:

[0024] The test data collected by the acquisition host is acquired and transmitted to the industrial control computer via Ethernet.

[0025] To address the aforementioned technical problems, this application provides a train testing device applied to a train testing system equipped with a transmitting antenna, a receiving antenna, an undercarriage switch, an on-board switch, and an undercarriage testing unit. The device includes:

[0026] The data acquisition module is used to acquire test data generated by the under-vehicle test unit and transmit the test data to the under-vehicle switch.

[0027] The transmission module is used by the under-vehicle switch to transmit test data from the transmitting antenna to the receiving antenna.

[0028] The control module is used to control the onboard switch to process the test data received by the receiving antenna in order to complete the train test.

[0029] In addition, the device also includes the following modules:

[0030] Preferably, it further includes:

[0031] The synchronization module is used to synchronize test data via an industrial control computer and transmit the synchronized test data to the under-vehicle switch.

[0032] Preferably, before synchronizing test data via an industrial control computer, the following steps are also included:

[0033] The acquisition module is used to acquire test data collected by the acquisition host and transmit the test data to the industrial control computer via Ethernet.

[0034] To address the aforementioned technical problems, this application also provides a train testing device, comprising:

[0035] Memory, used to store computer programs;

[0036] A processor is used to direct computer programs to implement the steps of train testing methods.

[0037] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements all the steps of the aforementioned train testing methods.

[0038] This application provides a train testing system comprising: a transmitting antenna, a receiving antenna, an under-vehicle switch, an on-vehicle switch, and an under-vehicle testing unit. The transmitting antenna is connected to the under-vehicle switch for transmitting test data collected by the under-vehicle switch. The under-vehicle switch is connected to the under-vehicle testing unit for collecting test data generated by the under-vehicle testing unit. The under-vehicle testing unit includes multiple test sensors corresponding to various test items and is connected to corresponding data acquisition hosts. The on-vehicle switch is connected to the receiving antenna for processing the test data received by the receiving antenna to complete the train test. By using the transmitting and receiving antennas for data transmission between the train and the under-vehicle area, and by placing the under-vehicle testing unit containing the test sensors and data acquisition hosts under the train, the system avoids the need for numerous test cables running between the train and the under-vehicle area. This reduces the number of test cables and minimizes electromagnetic radiation from the train, ensuring that electromagnetic radiation testing meets standards and guaranteeing the safety of the train test.

[0039] This application also provides a train testing method, apparatus, equipment, and medium, with the same effect as above. Attached Figure Description

[0040] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a train testing system provided in an embodiment of this application;

[0042] Figure 2 This is a flowchart of a train testing method provided in an embodiment of this application;

[0043] Figure 3 Test curves for multiple test items;

[0044] Figure 4 This is a structural diagram of a train testing device provided in an embodiment of this application;

[0045] Figure 5 This is a structural diagram of a train testing device provided in an embodiment of this application.

[0046] Among them, 10 is the transmitting antenna, 11 is the receiving antenna, 12 is the off-vehicle switch, 13 is the on-vehicle switch, 14 is the off-vehicle test unit, 15 is the test sensor, 16 is the data acquisition host, 17 is the industrial control computer, 18 is the vehicle-level host, 19 is the DC-DC converter, 20 is the junction box, and 21 is the on-vehicle display unit. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0048] The core of this application is to provide a train testing system, method, apparatus, equipment, and medium to ensure that the electromagnetic radiation of the train does not exceed the standard and to guarantee the safety of the train test.

[0049] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] This application is applied to various test projects of maglev trains. In order to avoid the influence of electromagnetic radiation from the numerous test cables connecting the train to the ground, this application proposes a train test system that can avoid the influence of electromagnetic radiation from the numerous test cables connecting the train to the ground.

[0051] Figure 1 This is a schematic diagram of the structure of a train testing system provided in an embodiment of this application, as shown below. Figure 1 As shown, the train test system includes: a transmitting antenna 10, a receiving antenna 11, an undercarriage switch 12, an on-board switch 13, and an undercarriage test unit 14. The transmitting antenna is connected to the undercarriage switch and is used to transmit test data collected by the undercarriage switch; the undercarriage switch is connected to the undercarriage test unit and is used to collect test data generated by the undercarriage test unit. The undercarriage test unit includes multiple test sensors 15 corresponding to various test items and is connected to corresponding acquisition hosts 16. The on-board switch is connected to the receiving antenna and is used to process the test data received by the receiving antenna to complete the train test. The system also includes: an industrial control computer 17 and a vehicle-level host 18; the industrial control computer is connected to each acquisition host in the undercarriage test unit to receive the test data collected by the acquisition hosts and to synchronize the test data; the vehicle-level host is connected to the industrial control computer and the undercarriage switch to receive the synchronized test data from the industrial control computer and send it to the undercarriage switch according to a preset relationship. The system also includes: a DC-DC converter 19 and a junction box 20; the DC-DC converter is connected to the junction box, which in turn is connected to the vehicle-level host, industrial control computer, vehicle-mounted switch, and data acquisition host, allowing power to be supplied to these devices respectively. For real-time display of test data, an on-vehicle display unit 21 is also provided; this unit is connected to the on-vehicle switch. It should be noted that the number of test sensors is equal to the number of data acquisition hosts.

[0052] It should be noted that the testing process for maglev trains generally includes the following tests: undercarriage dynamics, dynamic stress, current collection performance, electromagnet temperature rise, track irregularities, etc. Corresponding test sensors can include acceleration sensors, stress sensors, temperature sensors, current and voltage sensors, etc., and these various types of test sensors are connected to their respective data acquisition hosts in the undercarriage test unit via test cables.

[0053] In addition, the DC-DC converter draws power from the power grid (which can be any battery, system, power supply equipment, etc. that can provide 440V voltage, such as a 440V battery under the train) and steps down the 440V DC voltage to 110V. After being distributed through a junction box, the power is supplied to the acquisition host, industrial control computer, vehicle-level host, and under-train switch for each test item. This achieves centralized power supply for the acquisition system, replacing the original distributed power supply method on the train. This operation reduces the number of test cables, reduces electromagnetic radiation interference, and ensures that the electromagnetic radiation test of the train meets the standards.

[0054] After the test data generated by each test sensor enters the acquisition host corresponding to its respective test item, it is converted by the acquisition host and transmitted to the industrial control computer via Ethernet. The industrial control computer then aggregates and processes the data before transmitting it to the vehicle-level host. The vehicle-level host transmits all the received test data to the off-vehicle switch according to a preset relationship, and then transmits it to the transmitting antenna via the off-vehicle switch. The data is then transmitted to the receiving antenna and then transmitted to the on-vehicle switch via the receiving antenna for processing and display on the on-vehicle display unit. The preset relationship between the vehicle-level host and the off-vehicle switch is the logic, timing, priority, etc. of each test item. The on-vehicle display unit may also include an on-vehicle display. Of course, the on-vehicle display will be equipped with peripheral circuits to support its high-performance operation. This application does not impose specific limitations on this, and the implementation method can be determined according to the specific implementation scenario.

[0055] This application provides a train testing system comprising: a transmitting antenna, a receiving antenna, an under-vehicle switch, an on-vehicle switch, and an under-vehicle testing unit. The transmitting antenna is connected to the under-vehicle switch for transmitting test data collected by the under-vehicle switch. The under-vehicle switch is connected to the under-vehicle testing unit for collecting test data generated by the under-vehicle testing unit. The under-vehicle testing unit includes multiple test sensors corresponding to various test items and is connected to corresponding data acquisition hosts. The on-vehicle switch is connected to the receiving antenna for processing the test data received by the receiving antenna to complete the train test. By using the transmitting and receiving antennas for data transmission between the train and the under-vehicle area, and by placing the under-vehicle testing unit containing the test sensors and data acquisition hosts under the train, the system avoids the need for numerous test cables running between the train and the under-vehicle area. This reduces the number of test cables and minimizes electromagnetic radiation from the train, ensuring that electromagnetic radiation testing meets standards and guaranteeing the safety of the train test.

[0056] At this point, by reducing the number of test cable connections between the train and the outside of the train, and by transmitting data between the train and the outside of the train via antennas and wireless means, it means that many test cables that are equivalent to antennas have disappeared, resulting in the disappearance of test cables that generate electromagnetic radiation. This avoids electromagnetic radiation from the train, ensuring that the electromagnetic radiation test meets the standards, while also guaranteeing the safety of the train test.

[0057] Figure 2 A flowchart of a train testing method provided in this application embodiment is shown below. Figure 2 As shown, this application also provides a train testing method, applied to a train testing system equipped with a transmitting antenna, a receiving antenna, an undercarriage switch, an on-board switch, and an undercarriage test unit. The method includes:

[0058] S20: Collects test data generated by the under-vehicle test unit and transmits the test data to the under-vehicle switch;

[0059] S21: The under-vehicle switch transmits test data to the receiving antenna via the transmitting antenna;

[0060] S22: Control the onboard switch to process the test data received by the receiving antenna;

[0061] This is to complete the train test. In addition, this application also synchronizes test data via an industrial control computer and transmits the synchronized test data to the onboard switch. Before synchronizing test data via the industrial control computer, test data is collected by the acquisition host and transmitted to the industrial control computer via Ethernet.

[0062] It should be noted that test data can be transmitted to the industrial control computer via either Ethernet or wireless communication. In this case, Ethernet and wireless transmissions are redundant. If a failure is detected in the Ethernet transmission, wireless transmission can be used instead. The priority of the two transmission methods can be determined based on the specific implementation; either Ethernet transmission or wireless transmission can have higher priority.

[0063] In addition, the onboard switch transmits the acquired speed and time information to the offboard switch, the vehicle-level host, and the industrial control computer. When the industrial control computer processes the test data, it generates test curves and synchronizes all measurement curves in terms of clock and speed. Figure 3 Test curves for multiple test items, such as Figure 3As shown, the horizontal axis represents the test parameters corresponding to the test items, and the vertical axis represents the synchronization method of the test data. When the industrial control computer synchronizes all measurement curves by speed, the horizontal axis represents speed; when the industrial control computer synchronizes all measurement curves by clock, the horizontal axis represents time. Figure 3 The diagram shows three curves: the solid line represents voltage, the dotted line represents temperature, and the dashed line represents stress.

[0064] It should also be noted that the under-vehicle testing unit is generally housed in a separate chassis, with each data acquisition host arranged in a specific order. The exact arrangement can be determined based on the specific implementation scenario, and this embodiment does not impose any limitations. The chassis may include the following components: a 4G antenna, a wireless router, an electrical performance host, a noise host, a temperature rise host, a dynamic stress host, a dynamics host, an unevenness host, an aerodynamics host, and a magnetic levitation guidance monitoring U-port. The on-vehicle display unit is generally located in a carriage designated for housing the on-vehicle testing unit. Its specific location and values ​​should be configured according to the specific embodiment.

[0065] This application ensures clock and / or speed synchronization of all collected test data, which is beneficial for subsequent data processing and analysis. At the same time, it avoids a large number of test cables from the train to the outside of the train, thereby avoiding safety hazards to the train. It also avoids the problem of electromagnetic interference signals from various power sources under the train being radiated out through conduction and spatial coupling by test cables installed on the train surface, which would increase the external radiation level of the vehicle and cause electromagnetic radiation test to exceed the standard.

[0066] In the above embodiments, the train testing method has been described in detail. This application also provides embodiments corresponding to the train testing device. It should be noted that this application describes the embodiments of the device from two perspectives: one is based on the functional modules, and the other is based on the hardware.

[0067] Figure 4 This is a structural diagram of a train testing device provided in an embodiment of this application, as shown below. Figure 4 As shown, this application also provides a train testing device, applied to a train testing system equipped with a transmitting antenna, a receiving antenna, an undercarriage switch, an on-board switch, and an undercarriage testing unit. The device includes:

[0068] The acquisition module 40 is used to acquire test data generated by the under-vehicle test unit and transmit the test data to the under-vehicle switch.

[0069] Transmission module 41 is used for the under-vehicle switch to transmit test data to the receiving antenna via the transmitting antenna;

[0070] The control module 42 is used to control the onboard switch to process the test data received by the receiving antenna in order to complete the train test.

[0071] In addition, the device also includes the following modules:

[0072] Preferably, it further includes:

[0073] The synchronization module is used to synchronize test data via an industrial control computer and transmit the synchronized test data to the under-vehicle switch.

[0074] Preferably, before synchronizing test data via an industrial control computer, the following steps are also included:

[0075] The acquisition module is used to acquire test data collected by the acquisition host and transmit the test data to the industrial control computer via Ethernet.

[0076] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0077] Figure 5 This application provides a structural diagram of a train testing device, as shown in the embodiment. Figure 5 As shown, the train testing equipment includes:

[0078] Memory 50 is used to store computer programs;

[0079] The processor 51 is used to execute computer programs to implement the steps of the train testing method mentioned in the above embodiments.

[0080] The train testing equipment provided in this embodiment may include, but is not limited to, smartphones, tablets, laptops, or desktop computers.

[0081] The processor 51 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 51 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 51 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 51 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 51 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0082] The memory 50 may include one or more computer-readable storage media, which may be non-transitory. The memory 50 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 50 is used to store at least the following computer program, which, after being loaded and executed by the processor 51, is capable of implementing the relevant steps of the train testing method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 50 may also include an operating system and data, and the storage method may be temporary or permanent. The operating system may include Windows, Unix, Linux, etc. The data may include, but is not limited to, the train testing method.

[0083] In some embodiments, the train testing equipment may also include a display screen, input / output interfaces, communication interfaces, a power supply, and a communication bus.

[0084] Those skilled in the art will understand that Figure 5 The structure shown does not constitute a limitation on the train testing equipment and may include more or fewer components than shown.

[0085] The train testing equipment provided in this application includes a memory 50 and a processor 51. When the processor 51 executes the program stored in the memory 50, it can implement the train testing method.

[0086] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0087] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0088] The foregoing has provided a detailed description of a train testing system, method, apparatus, equipment, and medium provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0089] It should also be noted that, in this specification, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A train testing system, characterized in that, include: Transmitting antenna (10), receiving antenna (11), under-vehicle switch (12), on-vehicle switch (13), under-vehicle test unit (14). The transmitting antenna (10) is connected to the under-vehicle switch (12) and is used to transmit the test data collected by the under-vehicle switch (12); The under-vehicle switch (12) is connected to the under-vehicle test unit (14) and is used to collect the test data generated by the under-vehicle test unit (14). The under-vehicle test unit (14) includes multiple test sensors (15) corresponding to test items and is connected to the corresponding acquisition host (16). The onboard switch (13) is connected to the receiving antenna (11) and is used to process the test data received by the receiving antenna (11) to complete the train test. The onboard and offboard data transmission is carried out through the transmitting antenna (10) and receiving antenna (11). The offboard test unit (14) containing the test sensor (15) and the data acquisition host is set under the train, avoiding the need for numerous test cables from the onboard to the offboard. This reduces the number of test cables and avoids electromagnetic radiation from the train. It also includes: industrial control computer (17), vehicle-grade host (18); The industrial control computer (17) is connected to each of the acquisition hosts (16) in the under-vehicle test unit (14) so ​​as to receive the test data collected by the acquisition host (16) and synchronize the test data; The vehicle-level host (18) is connected to the industrial control computer (17) and the vehicle-mounted switch (12) so as to receive the test data synchronized by the industrial control computer (17) and send it to the vehicle-mounted switch (12) according to the preset relationship.

2. The train testing system according to claim 1, characterized in that, Also includes: DC-DC converter (19), junction box (20); The DC-DC converter (19) is connected to the junction box (20), which is connected to the vehicle-level host (18), the industrial control computer (17), the under-vehicle switch (12), and the data acquisition host (16) respectively, so as to supply power to the vehicle-level host (18), the industrial control computer (17), the under-vehicle switch (12), and the data acquisition host (16) respectively through the junction box (20).

3. The train testing system according to claim 1 or 2, characterized in that, Also includes: Vehicle display unit (21); The vehicle display unit (21) is connected to the vehicle switch (13) to display the test data.

4. The train testing system according to claim 1, characterized in that, The number of test sensors (15) is equal to the number of data acquisition hosts (16).

5. A train testing method, characterized in that, The method, applied to the train testing system according to any one of claims 1 to 4, comprises: Collect test data generated by the under-vehicle test unit and transmit the test data to the under-vehicle switch; The under-vehicle switch transmits the test data to the receiving antenna via the transmitting antenna. The onboard switch processes the test data received by the receiving antenna to complete the train test. Data transmission between the train and the ground is achieved through the transmitting and receiving antennas. The test units, which include test sensors and data acquisition hosts, are all located on the ground, avoiding the need for numerous test cables running between the train and the ground. This reduces the number of test cables and also avoids electromagnetic radiation from the train.

6. The train testing method according to claim 5, characterized in that, Also includes: The test data is synchronized via an industrial control computer and then transmitted to the under-vehicle switch.

7. The train testing method according to claim 6, characterized in that, Before synchronizing the test data via the industrial control computer, the following is also included: The test data collected by the acquisition host is acquired and transmitted to the industrial control computer via Ethernet.

8. A train testing device, characterized in that, The apparatus, applied to the train testing system according to any one of claims 1 to 4, comprises: The acquisition module is used to acquire test data generated by the under-vehicle test unit and transmit the test data to the under-vehicle switch. The transmission module is used by the under-vehicle switch to transmit the test data to the receiving antenna via the transmitting antenna; The control module is used to control the onboard switch to process the test data received by the receiving antenna to complete the train test. It also enables data transmission between the onboard and offboard areas via the transmitting and receiving antennas. Furthermore, the offboard test units, which include test sensors and data acquisition hosts, are all located offboard, avoiding the need for numerous test cables running between the onboard and offboard areas. This reduces the number of test cables and also minimizes electromagnetic radiation from the train.

9. A train testing device, characterized in that, include: Memory, used to store computer programs; A processor, configured to implement the steps of the train testing method as described in any one of claims 5 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the train testing method as described in any one of claims 5 to 7.

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