Bullet train VIP seat group film and television system detection tool

Abstract

The utility model discloses a movie and television system detection tool for a bullet train VIP seat group. The movie and television system detection tool comprises an integrated circuit board, a DP9 interface plug and a triode, a DP9 interface plug which can be inserted into an A3 interface on a movie and television control junction box of the VIP seat group of the bullet train is arranged on the integrated circuit board; a power port of the DP9 interface plug is connected with a first power line and a second power line, and an audio port of the DP9 interface plug is connected with an audio line. The first power line and the audio line are connected with the input end of the triode, the output end of the triode is connected with the first loudspeaker and the second loudspeaker, and the negative electrodes of the first loudspeaker and the second loudspeaker are grounded through the grounding line. A resistor, a button and an LED lamp are sequentially arranged on the second power line. The other end of the second power line is grounded through a grounding line. Detection can be carried out without additional modification, which is convenient and fast. The indicating lamp and the audio output can directly reflect the test result, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a detection tool, in particular to a detection tool for a video system of a motor vehicle VIP seat group. Background Art

[0002] VIP seats are equipped with video systems to provide entertainment services for passengers. The long working hours of EMUs and the vibrations during high-speed movement of EMUs are a severe test for the video control junction box, which also causes frequent failures of the video control junction box. The video system in the CRH380AL EMU needs to be inspected every time the first and second level maintenance and inspection work is carried out, especially for VIPs. Prevent failures from affecting the comfortable experience of passengers when riding. A VIP seat control unit is set in the VIP seat video system control junction box. Multimedia information is stored on the hard disk in the box. The content played is selected by VIP passengers through the touch screen, and the update information sent by the EMU audio and video control panel is received in non-real time. Each seat armrest box corresponds to an indicator call button. When a seat makes a service call, the corresponding indicator light is on and a "ding dong" prompt sound is issued. The crew can provide service or press the corresponding button to cancel the service. The VIP seat indicator light is linked to the call display indicator light and the service screen in the crew control room. When either end is reset, the indicator lights at both locations go out at the same time. The VIP seat call system adopts a trigger control method, which exchanges information through the VIP seat control unit.

[0003] In the prior art, when a fault occurs in the video system of the VIP seat group of a motor vehicle, and the fault cannot be determined based on the appearance, it is always necessary to go to the material warehouse to collect new materials and use the new materials to assist in determining the cause of the fault. If the fault phenomenon disappears after replacing the new materials, the fault is solved and the fault repair is completed. However, in many cases, the fault is not eliminated after replacing the new materials. In this case, the replaced equipment may not be damaged, and the cause of the fault lies elsewhere. The fault needs to be checked again, and the materials need to be collected again to replace the faulty parts. There are problems such as long troubleshooting time and inconvenient operation. Utility Model Content

[0004] Based on the above background, the present invention aims to solve the problem that the existing video system of the VIP seat group of a motor vehicle has a long troubleshooting time and is inconvenient to operate.

[0005] In order to solve this technical problem, the utility model relates to a detection tool for a video system of a VIP seat group of a motor vehicle, comprising an integrated circuit board, a DP9 interface plug, and a triode; the DP9 interface plug which can be inserted into the A3 interface on the video control junction box of the VIP seat group of a motor vehicle is arranged on the integrated circuit board; the power port of the DP9 interface plug is connected with a No. 1 power line and a No. 2 power line, and the audio port of the DP9 interface plug is connected with an audio line;

[0006] The No. 1 power line, the audio line and the input end of the triode are connected, the output end of the triode is connected to the No. 1 speaker and the No. 2 speaker, and the negative electrodes of the No. 1 speaker and the No. 2 speaker are grounded through a ground wire;

[0007] The second power line is provided with a resistor, a button, and an LED lamp in sequence; the other end of the second power line is grounded through a ground wire.

[0008] The audio port of the DP9 interface plug is connected to the headphone external jack via an audio cable;

[0009] Furthermore, the integrated circuit board is covered with a shell; the first speaker, the second speaker, the button switch and the light are exposed to the outside of the shell through holes in the shell.

[0010] Furthermore, the shell is made of transparent material.

[0011] Furthermore, the DP9 interface plug may also be designed as different detection plugs to adapt to video control junction boxes of different models or different manufacturers.

[0012] Furthermore, the outer side of the shell is also designed with a hanging ring for easy hanging.

[0013] Furthermore, elastic pads for protecting the shell are provided at the sharp corners of the shell.

[0014] The beneficial effects and features of the utility model are:

[0015] 1. The utility model of the video system detection tool for the VIP seat group of the motor vehicle is to remove the original connection line of the A3 interface of the video control junction box connection line (the A3 interface has ports connected to the audio or indicator light of the video system, and these ports are connected to the original connection line, and the original connection line is connected to the audio or indicator light of the video system to form a control loop), connect the homemade test equipment to the junction box, play the classic videos and music in the small TV, and get music feedback on the external device, so as to judge whether the audio of the video control junction box is normal. By testing the small TV, when the programs and music on the small TV are normal, press the button on the device to light up the indicator light on the device. If it lights up, it means the service call function is normal. If it cannot light up, it means the service call function is damaged. The original A3 interface connection is used, and the detection can be carried out without additional modification, which is convenient and quick. The indicator light and audio output can intuitively reflect the test results, which improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0017] Figure 2It is a schematic diagram of the overall structure of a preferred embodiment of the utility model (with housing holes);

[0018] Figure 3 This is a schematic diagram of the overall structure of a preferred embodiment of the utility model (with a hanging ring);

[0019] The meanings of the reference numerals are as follows: 1-integrated circuit board, 2-DP9 interface plug, 3-transistor, 4-first speaker, 5-resistor, 6-button switch, 7-LED lamp, 8-second speaker, 9-housing, 10-hole, 11-hanging ring; DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings:

[0021] Please refer to Figure 1 The utility model relates to a detection tool for a video system of a VIP seat group of a motor vehicle, characterized in that it comprises an integrated circuit board 1, a DP9 interface plug 2, and a triode 3; the DP9 interface plug 2 which can be inserted into an A3 interface on a video control junction box of a VIP seat group of a motor vehicle is arranged on the integrated circuit board (1); a power supply port of the DP9 interface plug 2 is connected to a first power supply line and a second power supply line, and an audio line is connected to an audio port of the DP9 interface plug 2;

[0022] The first power line, the audio line and the input end of the transistor 3 are connected, the output end of the transistor 3 is connected to the first speaker 4 and the second speaker 8, and the negative electrodes of the first speaker 4 and the second speaker 8 are grounded through the ground wire;

[0023] The second power line is provided with a resistor 5, a button 6, and an LED lamp 7 in sequence; the other end of the second power line is grounded through a ground wire;

[0024] As an optional solution, the audio port of the DP9 interface plug 2 can also be connected to a headphone external jack via another audio cable (not shown in the figure). The headphone external jack is used for device self-detection. The headphone and the No. 1 speaker 4 and No. 2 speaker 8 corroborate each other to confirm that the functions are normal.

[0025] This detection tool is equivalent to an external speaker. The original junction box has a complete audio-visual system. The integrated circuit board 1 receives the audio signal through the DP9 interface plug and amplifies it through the transistor and then plays it out through the speaker. For the detection fault judgment of the service call, based on the premise that the function (video and music) interface can be played normally, press the button switch to light up the LED light 7. If it can light up, it means the function is normal. The receiving control box converts the electrical signal into an audio signal and plays it out through the speaker to realize the detection of the audio.

[0026] If the light turns on after pressing the button, it means the service call function is normal. If the light does not turn on, it means a fault, and the button needs to be pressed again for the light to turn off. It can be understood as a button and a light connected in series on a circuit, and this circuit is connected to the control box through a DB9 interface to form a path;

[0027] Please refer to Figure 2 , Figure 3 The integrated circuit board 1 is covered with a transparent shell 9; the surface of the shell 9 is designed with anti-slip patterns, such as small dot-shaped protrusions. The first speaker 4, the second speaker 8, the button switch 6 and the LED light 7 are all exposed to the outside of the shell through the holes 10 on the shell, so that the staff can press the button and observe the LED light 7 from the outside; the button switch 6 is preferably set on the side for easy single-handed operation.

[0028] As a preferred solution, in order to expand the adaptability of the detection tool, the DP9 interface plug 2 can also be designed as different detection plugs to adapt to video control junction boxes of different models or different manufacturers.

[0029] As a preferred solution, in order to facilitate the staff to carry and prevent loss, the outer side of the shell is also designed with a hanging ring 11 for hanging.

[0030] As a preferred solution, in order to enhance the drop resistance of the detection tool, elastic pads for protecting the shell are provided at the eight sharp corners of the shell.

[0031] As a preferred solution, a hole can be opened at a suitable position of the housing to install a display screen, and the screen is exposed for display. A main control chip is added to the integrated circuit board to read the status signal of the detection A3 interface or other interfaces, and convert it into the corresponding fault code or detection result information. The main control chip outputs information to the display screen controller, and the information is updated and displayed on the screen in real time, which is used to display information such as fault codes and more intuitively feedback the detection results.

[0032] The working principle of the tooling is as follows:

[0033] Service call function detection: When the call panel button is pressed, the LED light next to the button is lit, but it is not displayed on the call service screen, and the seat call status cannot be prompted. Or it cannot be lit, and it is not displayed on the call service screen, and the seat call status cannot be prompted. The reasons for this situation are: the video control junction box is damaged, the call line is broken, the interfaces at both ends are loose, and the service panel is damaged. For the above situation, you only need to remove the A3 interface on the video control junction box, install the detection tool on the A3 interface, power on the video control junction box, press the button on the detection tool, and when the LED light 7 on the detection tool cannot be lit, and it is not displayed on the call service screen, and there is no prompt for the seat call, then the junction box is damaged; when the LED light 7 on the detection tool is lit, but it is not displayed on the call service screen, there is no prompt for the seat call, check that the programs and music on the small TV can be played normally, in this case, the IP address of the video junction box is wrong, and the information can be transmitted but cannot be recognized and displayed; when the LED light 7 on the detection tool is lit, but it is not displayed on the call service screen, there is no prompt for the seat call, check that the programs and music on the small TV cannot be played normally, in this case In this case, the video control junction box is damaged; when the LED light 7 on the detection tool is lit, the call service screen displays, prompting the seat call situation, and checking that the programs and music on the small TV can be played normally, in this case, the video control junction box is normal, it may be that the call line is broken, the interfaces at both ends are loose, and the service panel is damaged. Re-tighten the two ends of the wire and try. If the function is normal, the loose wiring fault is eliminated; if the fault phenomenon still exists, it is suspected that the fault is that the call line is broken and the service panel is damaged. Generally, the call transmission line is not often broken. Basically, it can be judged that the interface on one side of the call button is loose, the interface line is broken, or the call panel is damaged. Restore the line of the A3 interface, connect the test tool to the call panel end interface, and test the function normally, then the call panel is damaged. Replace the original call panel again. If the function is normal, the line interface is loose. If the test tool is connected to the call panel end interface, the test function call service screen does not display, and the seat call situation cannot be prompted, then the call transmission line is broken. This tool can be used to troubleshoot the faults of damaged video control junction box, broken call line, loose interfaces at both ends, and damaged service panel when the call is unanswered.

[0034] Headphone fault function detection: Inspection is required during the first and second level maintenance and inspection operations, especially for VIP inspections and testing of the headphones on VIP seats. If the headphones cannot be used when a fault occurs, the possible faults are: damage to the video control junction box, damage to the headphone panel, and loose wire interface. At this time, use this device for detection. You only need to remove the A3 interface on the video control junction box, install the detection tooling on the A3 interface, and then start playing the program on the small TV. If the corresponding audio is heard on the detection tooling, it proves that the video control junction box is functioning normally; if the detection tooling cannot sound the corresponding audio, it proves that the call headset panel is damaged and the wire interface is loose. After tightening the interface, if the function is normal, it means the wire interface is loose, if not, it means the headphone panel is damaged.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the structural relationship and principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A video system detection tool for VIP seats of a motor vehicle, characterized in that , comprising an integrated circuit board (1), a DP9 interface plug (2), and a triode (3); the DP9 interface plug (2) which can be inserted into the A3 interface on the video control junction box of the VIP seat group of the motor vehicle is arranged on the integrated circuit board (1); the power port of the DP9 interface plug (2) is connected to a No. 1 power line and a No. 2 power line, and the audio port of the DP9 interface plug (2) is connected to an audio line; The first power line, the audio line and the input end of the triode (3) are connected, the output end of the triode (3) is connected to the first speaker (4) and the second speaker (8), and the negative electrodes of the first speaker (4) and the second speaker (8) are grounded through a grounding wire; The second power line is provided with a resistor (5), a button (6), and an LED lamp (7) in sequence; the other end of the second power line is grounded via a grounding wire.

2. The motor vehicle VIP seat group video system detection tool according to claim 1 is characterized in that The integrated circuit board (1) is covered with a housing (9); the first speaker (4), the second speaker (8), the button (6) and the light (7) are all exposed to the outside of the housing through holes (10) on the housing.

3. The video system detection tool for VIP seats of a motor vehicle according to claim 2 is characterized in that , the shell (9) is made of transparent material.

4. The motor vehicle VIP seat group video system detection tool according to claim 1 is characterized by: The DP9 interface plug (2) may also be designed as different detection plugs to be compatible with video control junction boxes of different models or different manufacturers.

5. The motor vehicle VIP seat group video system detection tool according to claim 2 is characterized by: The outer side surface of the housing (9) is also designed with a hanging ring (11) for facilitating hanging.

6. The motor vehicle VIP seat group video system detection tool according to claim 2 is characterized by: Elastic pads for protecting the shell are also provided at the sharp corners of the shell (9).

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