A test bench for testing and maintaining the video system of a high-speed train

Abstract

This utility model provides a testing and maintenance test bench for a high-speed train audio-visual system, belonging to the technical field of high-speed train audio-visual system component testing. It includes a test bench body equipped with a VIP TV, an LCD TV, a monitoring screen, and a VIP service call screen. The test bench body integrates a power control system, including switch buttons and a power circuit breaker. The power circuit breaker is connected to the switch buttons and various electrical devices via power lines. An expansion wiring drawer on the test bench body contains several redundant expansion connectors, which connect to various electrical devices and system sub-servers. This test bench body integrates the main equipment of the high-speed train audio-visual system, allowing multiple tests to be performed on a single platform, avoiding repeated disassembly and reassembly of equipment and significantly shortening maintenance time. The quick-plug connectors in the expansion wiring drawer allow for flexible connection of different devices, supporting parallel testing and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of testing technology for high-speed train video system components, and specifically relates to a testing and maintenance test bench for high-speed train video systems. Background Technology

[0002] With the rapid development of my country's high-speed railway network and the large-scale operation of EMU trains, the stability and reliability of onboard entertainment systems are particularly important as a crucial facility for enhancing the passenger travel experience. The Type 2 EMU entertainment system includes various devices such as VIP TVs, in-car LCD TVs, and VIP service call screens; the normal operation of these devices directly affects the quality of passenger service.

[0003] Currently, the maintenance of the high-speed train's audio-visual system mainly faces the following technical problems:

[0004] Traditional test benches adopt a fixed structure design, and their equipment installation platform can only accommodate standard-sized equipment, making them unsuitable for new display terminals and intelligent interactive devices.

[0005] Chinese patent CN217935802U discloses a test bench for a CRH2 series EMU video broadcasting system. Its internal component storage compartment adopts a closed design, requiring an external test computer to obtain data through the equipment test interface. In addition, the installation of new test modules requires disassembling the entire back panel door. Furthermore, the maximum output power of the power system can only support the simultaneous testing of 3 devices, which cannot meet the parallel testing requirements of high-power devices and cannot be expanded.

[0006] Therefore, there is an urgent need to develop a dedicated testing and maintenance test bench for EMU (Electric Multiple Unit) video systems, capable of rapid equipment testing, precise fault location, and maintenance training, in order to improve maintenance efficiency and quality and ensure the stable operation of EMU video systems. Utility Model Content

[0007] The purpose of this invention is to overcome the problem that existing equipment cannot perform extended testing, and to provide a testing and maintenance test bench for high-speed train video systems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] This utility model provides a test bench for testing and maintaining a high-speed train video system, including a test bench body. The test bench body is equipped with a VIP TV, an LCD TV, a monitoring screen, and a VIP service call screen. The test bench body integrates a power control system, including switch buttons and a power circuit breaker. The power circuit breaker is connected to the switch buttons and various electrical devices through power lines. An expansion wiring drawer is located on the test bench body and has several redundant expansion connectors built in. These redundant expansion connectors are used to connect various electrical devices and system sub-servers.

[0010] Casters are installed at the four corners of the bottom of the test bench.

[0011] The casters are swivel casters with brakes.

[0012] The test bench includes an LCD TV bracket for fixing the LCD TV in the carriage.

[0013] The video system monitoring screen is connected to the VIP TV, LCD TV, and VIP service call screen via signal.

[0014] The video system monitoring screen integrates a device status diagnostic module, which displays the operating parameters of each connected device in real time.

[0015] The power control system also includes an extended power socket located on the test bench body.

[0016] The test bench body adopts a modular steel structure frame, and each functional unit is detachable.

[0017] The test bench body has an anti-static coating on its surface and uses shielded cables for internal wiring.

[0018] The switch button is a waterproof button with a status indicator light.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model provides a testing and maintenance test bench for a high-speed train audio-visual system. The test bench includes a main body equipped with a VIP TV, an LCD TV, a monitoring screen, and a VIP service call screen. The main body integrates a power control system, including switch buttons and a power circuit breaker. The power circuit breaker is connected to the switch buttons and various electrical devices via power lines. An expansion wiring drawer on the main body contains several redundant expansion connectors, which connect to various electrical devices and system sub-servers. This test bench integrates the main equipment of the high-speed train audio-visual system, allowing multiple tests to be performed on a single platform, avoiding repeated disassembly and reassembly of equipment and significantly shortening maintenance time. The quick-plug connectors in the expansion wiring drawer allow for flexible connection of different devices, supporting parallel testing and improving maintenance efficiency. Through integrated design, intelligent monitoring, modular expansion, and portability, the test bench significantly improves the maintenance efficiency and quality of the high-speed train audio-visual system. It also supports training, repair of old parts, and debugging of new equipment, possessing high practicality and economic value.

[0021] Furthermore, the monitoring screen displays the operating parameters of each device in real time, such as voltage, signal strength, and communication status, helping maintenance personnel to quickly locate faults and reduce the blindness of manual troubleshooting.

[0022] Furthermore, by reserving an expansion power socket, it can be adapted to future additions of equipment, extending the service life of the test bench.

[0023] Furthermore, the test bench uses shielded cables inside and is coated with an anti-static coating to ensure stable signal transmission, making it suitable for testing needs in complex electromagnetic environments.

[0024] Furthermore, casters are installed at the bottom of the test bench, which can be easily moved to different maintenance stations or training areas, and can be fixed by a braking device to ensure the stability of the testing process. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] The following are the labels in the attached diagram: 1. Test bench body; 2. VIP TV; 3. LCD TV; 4. LCD TV bracket; 5. Extension wiring drawer; 6. Casters; 7. Monitoring screen; 8. Switch button; 9. Power circuit breaker; 10. Extension power socket; 11. VIP service call screen. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] The accompanying drawings show various structural schematic diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged and may have been omitted for clarity. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0037] Example 1

[0038] A testing and maintenance test bench for a high-speed train's audio-visual system, comprising the following components:

[0039] like Figure 1 As shown, a test bench for testing and maintaining a video system on a high-speed train includes a test bench body 1. The test bench body 1 is equipped with a VIP TV 2, an LCD TV 3, a video system monitoring screen 7, and a VIP service call screen 11. The test bench body 1 integrates a power control system.

[0040] Furthermore, the power control system includes a test bench power circuit breaker 9, a switch button 8, and an expansion power socket 10. The power circuit breaker 9 is located inside the test bench and is connected to a 220V power supply for overload protection; the switch button 8 is located on the test bench operation panel and has a status indicator light for controlling the power supply to the test bench; the expansion power socket 10 provides an additional power supply interface for easy debugging of external equipment.

[0041] Furthermore, four casters 6 are installed at the four corners of the bottom of the test bench body 1. The casters 6 are swivel wheels with brakes, which facilitate movement and fixation.

[0042] Furthermore, the test bench body 1 includes an expansion wiring drawer 5, which has several redundant expansion connectors built in, respectively connecting to the VIP TV 2, LCD TV 3, VIP service call screen 11 and system sub-server. The expansion wiring drawer 5 is equipped with a cable management slot, and each plug is distinguished by color coding.

[0043] Furthermore, the video system monitoring screen 7 is connected to the VIP TV 2, LCD TV 3 and VIP service call screen 11. The video system monitoring screen 7 integrates a device status diagnostic module to display the operating parameters of each connected device in real time.

[0044] Preferably, the LCD TV bracket 4 is fixed on the test bench body 1, and the LCD TV 3 is placed on the LCD TV bracket 4. The LCD TV bracket 4 can be adjusted in angle to adapt to different test requirements.

[0045] Preferably, the test bench body 1 serves as the equipment installation platform, adopts a modular steel structure frame, each functional unit is detachable, the surface is coated with an anti-static coating, and the internal wiring uses shielded cables to improve anti-interference capabilities.

[0046] Example 2

[0047] A testing and maintenance test bench for a high-speed train's audio-visual system, with the following application scenarios:

[0048] 1) As equipment for employee skills training

[0049] Connect the test bench to a 220V universal power supply, close the test bench power circuit breaker 9, press the switch button 8, and observe whether the indicator lights illuminate to confirm normal power supply. Check that the screen displays of each device are normal and ensure good startup status. Operate and debug each device according to the requirements of the corresponding teaching project.

[0050] 2) Used for commissioning new equipment

[0051] Open extension cable drawer 5 and select the corresponding redundant extension connector according to the type of device under test. Observe the device's operating status through the video system monitoring screen 7 to perform signal testing, function verification, or troubleshooting.

[0052] For example, when debugging the VIP TV, open the expansion wiring drawer 5 of the test bench and insert the power cord and signal cable of the aviation plug corresponding to the VIP TV into the corresponding interface; close the power circuit breaker 9 of the test bench, press the switch button 8, and observe whether the VIP TV 2 starts normally. If it cannot start, check whether the power plug or the power circuit breaker 9 has tripped; send a test signal through the video system monitoring screen 7 and observe whether the display of the VIP TV 2 is normal. If there are problems such as screen distortion or no signal, check the signal cable connection or replace the spare cable for testing.

[0053] Preferably, the extension wiring drawer 5 can connect to multiple devices for testing simultaneously.

[0054] Preferably, if new equipment needs to be tested, additional power can be provided through the extended power socket 10 and connected to the test bench system through redundant expansion connectors.

[0055] Finally, it should be noted that the above embodiments only describe the basic principles, main features, and advantages of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A detection and maintenance test bench for a motor train unit video system, characterized in that, The test bench includes a test bench body (1), on which a VIP TV (2), an LCD TV (3), a monitoring screen (7) and a VIP service call screen (11) are installed. The test bench body (1) integrates a power control system, including a switch button (8) and a power circuit breaker (9). The power circuit breaker (9) is connected to the switch button (8) and various electrical devices through a power cord. An expansion wiring drawer (5) on the test bench body (1) has several redundant expansion connectors built in, which are used to connect various electrical devices and system sub-servers.

2. The detection and maintenance test bench for a video system of a motor train unit according to claim 1, characterized in that, Casters (6) are installed at the four corners of the bottom of the test bench body (1).

3. The detection and maintenance test bench for a video system of a motor train unit according to claim 2, characterized in that, The caster (6) is a universal wheel with brakes.

4. The detection and maintenance test bench for a video system of a motor train unit according to claim 1, characterized in that, The test bench body (1) includes a liquid crystal television bracket (4) for fixing the liquid crystal television (3).

5. The testing and maintenance test bench for a high-speed train audio-visual system according to claim 1, characterized in that, The video system monitoring screen (7) is connected to the VIP TV (2), the carriage LCD TV (3) and the VIP service call screen (11).

6. The detection and maintenance test bench for a video system of a motor train unit according to claim 5, characterized in that, The video system monitoring screen (7) integrates a device status diagnosis module, which displays the operating parameters of each connected device in real time.

7. The detection and maintenance test bench for a video system of a motor train unit according to claim 1, characterized in that, The power control system also includes an extended power socket (10) located on the test bench body (1).

8. The EMU video system detection and maintenance test bench according to claim 1, characterized in that, The test bench body (1) adopts a modular steel structure frame, and each functional unit is detachable.

9. The EMU video system detection and maintenance test bench according to claim 1, characterized in that, The test bench body (1) has an anti-static coating on its surface and uses shielded cables for internal wiring.

10. The testing and maintenance test bench for a high-speed train audio-visual system according to claim 1, characterized in that, The switch button (8) is a waterproof button with a status indicator light.

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