Portable multi-interface terminal maintenance display equipment

Abstract

The utility model discloses a portable multi-interface terminal maintenance display device, the side surface of the display device is provided with a VGA interface, an HDMI input interface, a DVI interface, a DP interface, a USB interface, a Type-C interface, an RJ45 network remote device debugging interface, a CAN bus debugging interface, a COM switch class device debugging interface, a power supply interface and a loudspeaker, and the bottom of the display device is provided with an OSD button board. A power supply module, a display chip, an interface conversion chip and an interface expansion board are installed in the display equipment, compared with the prior art, the interface standard of the display equipment is unified, various interface standards such as HDMI, VGA, DVI and the like are supported, compatibility with servers and industrial personal computers of different types is ensured, and when maintenance personnel carry out maintenance, the maintenance efficiency is greatly improved. And most of the systems in the railway operation system can be displayed by only carrying one display device, so that debugging operation can be carried out without frequently pulling out wires, and the operation is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a communication field, especially relates to a portable multi-interface terminal overhauling display device. BACKGROUND

[0002] The server and industrial personal computer equipment used by each professional (such as signal system, communication system, automatic ticket checking system, etc.) of the wire net are not configured with field display. When troubleshooting or equipment overhauling is needed, the technician must carry the large volume and many cables display to the field, which has the following main problems.

[0003] 1. Inconvenient to carry: the existing display is large in volume and heavy in weight, and many cables need to be carried, which brings great inconvenience to the technician.

[0004] 2. Low efficiency: additional time is needed to connect and debug the display every time when troubleshooting or overhauling, which seriously affects the use efficiency.

[0005] 3. Error-prone: frequent connection and disconnection operation increases the risk of cable damage, and also easily leads to interface loosening and other problems, further affecting the use cost and work efficiency.

[0006] 4. Single video interface:

[0007] Because multiple systems need to be overhauled during the synchronous operation process of the railway operation process, such as the VGA interface used by the servers of the video monitoring system, passenger information system, signal ATS system, etc.; the HDMI interface used by the special wireless system; the DVI interface used by the access control system and video monitoring system workstation; the DP interface used by the broadcasting system; the Type-C interface used by the instrument and test tooling; because the interfaces cannot be unified, multiple displays need to be prepared in advance for disposal. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims to provide a portable multi-interface terminal overhauling display device which solves the above problems.

[0009] In order to achieve the above object, the utility model discloses technical scheme is: a portable multi -interface's terminal overhauls display device, the upper surface of display device is installed with full -screen liquid crystal panel, display device side is equipped with VGA interface, HDMI input interface, DVI interface, DP interface, USB interface, Type -C interface, RJ45 network remote device debugging interface, CAN bus debugging interface, COM switcher class equipment debugging interface, power interface and loudspeaker, the bottom of display device is equipped with OSD key board, display device is installed with power module, display chip and interface conversion chip, interface conversion chip, VGA interface, HDMI input interface, liquid crystal panel, loudspeaker, OSD key board are connected with display chip electric signal respectively, DP interface, USB interface are connected with the signal input end of interface conversion chip respectively, after converting into HDMI signal through interface conversion chip, input display chip, RJ45 network remote device debugging interface, CAN bus debugging interface, COM switcher class equipment debugging interface are connected with the signal input end of interface expansion board respectively, after converting into HDMI signal through interface expansion board, input display chip, Type -C interface and DVI interface are converted into HDMI signal through adapter or adapter cable and are connected with display chip electric signal.

[0010] As preferred, the display chip adopts RTD2556 chip.

[0011] As preferred, the display chip is integrated with CPU control module, audio signal decoding module, power amplification module, video signal decoding module, format conversion module and display driving module, the CPU control module is connected with loudspeaker through audio signal decoding module and power amplification module in sequence, and the CPU control module is connected with liquid crystal panel through video signal decoding module, format conversion module and display driving module in sequence.

[0012] As preferred, the interface conversion chip adopts CS5263.

[0013] As preferred, the network remote device debugging interface adopts RJ45 network interface.

[0014] As preferred, the CAN bus debugging interface adopts OBD interface.

[0015] As preferred, the COM switcher class equipment debugging interface adopts RS232 interface.

[0016] As preferred, the Type-C interface is connected with display chip electric signal through typec conversion HDMI video conversion cable.

[0017] Preferably, the interface expansion board uses the Raspberry Pi Compute Module 4.

[0018] Preferably, the power interface is electrically connected to the power module, and the power module supplies power to the LCD panel, display chip, and interface conversion chip respectively.

[0019] Preferably, the power module has a built-in high-capacity lithium battery as a storage battery.

[0020] Compared with existing technologies, the advantages of this utility model are as follows: It designs a terminal maintenance display device suitable for railway maintenance, unifies the display device interface standard to support multiple interface standards such as HDMI, VGA, and DVI, and is equipped with an adapter to ensure compatibility with different types of servers and industrial control computers. When maintenance personnel are performing maintenance, they only need to carry one display device to display most systems in the railway operation system for debugging operations. When performing multi-interface maintenance, they only need to connect the signal terminals of the corresponding devices to the corresponding interfaces of this utility model at the same time, and switch the signals through the OSD keypad to display the status of the corresponding devices on the LCD panel. This eliminates the need for frequent disconnection and reconnection, making it very convenient. Attached Figure Description

[0021] Figure 1 This is a block diagram of the internal circuit principle of this utility model;

[0022] Figure 2 This is a block diagram of the internal circuit principle of the display chip of this utility model;

[0023] Figure 3 This is a diagram showing the external left side structure of the display device of this utility model;

[0024] Figure 4 This is a diagram showing the external right side structure of the display device of this utility model;

[0025] Figure 5 This is an external bottom view of the display device of this utility model;

[0026] Figure 6 This is the interface circuit diagram of the display chip of this utility model;

[0027] Figure 7 This is the interface circuit diagram of the interface conversion chip of this utility model;

[0028] Figure 8 This is the interface circuit diagram of the DVI to HDMI converter of this utility model;

[0029] Figure 9 This is the interface circuit diagram of the DP to HDMI converter of this utility model;

[0030] Figure 10 This is the interface circuit diagram of the CAN bus debugging interface and the USB interface of this utility model;

[0031] Figure 11 This utility model provides interface circuit diagrams for the debugging interfaces of COM switch devices and RJ45 network remote devices.

[0032] Figure 12 This is the interface circuit diagram of the HDMI input interface of this utility model;

[0033] Figure 13 This is the interface circuit diagram of the VGA interface of this utility model.

[0034] In the diagram: 1. Display device; 2. LCD panel; 3. Speaker; 4. Power interface; 5. OSD keypad; 6. VGA interface; 7. DVI interface; 8. HDMI input interface; 9. DP interface; 10. Type-C interface; 11. USB interface; 12. COM switch-type device debugging interface; 13. CAN bus debugging interface; 14. Network remote device debugging interface. Detailed Implementation

[0035] The present invention will be further described below: A portable multi-interface terminal maintenance display device, see [link to relevant documentation]. Figures 1 to 13 The display device is square, measuring 317mm in length, 237.7mm in width, and 25mm in thickness. A full-screen LCD panel is mounted on the top surface of the display device. The full-screen LCD panel offers a more aesthetically pleasing appearance, maximizes the viewing area, has a resolution of at least 1920x1080 (Full HD), and high brightness, making it suitable for use under various lighting conditions. The sides of the display device 1 include a VGA interface 6, an HDMI input interface 8, a DVI interface 7, a DP interface 9, a USB interface 11, a Type-C interface 10, an RJ45 network remote device debugging interface 14, a CAN bus debugging interface 13, a COM switch-type device debugging interface 12, a power interface 4, and a speaker 3. The bottom of the display device 1 has an OSD button panel 5. The display device 1 contains a power module, a display chip, and an interface conversion chip. The interface conversion chip, VGA interface 6, HDMI input interface 8, LCD panel 2, speaker 3, and OSD button panel 5 are all electrically connected to the display chip.

[0036] The DP interface 9 and USB interface 11 are respectively connected to the signal input terminals of the interface conversion chip, and the signals are converted into HDMI signals by the interface conversion chip and then input to the display chip.

[0037] The RJ45 network remote device debugging interface 14, CAN bus debugging interface 13, and COM switch-type device debugging interface 12 are respectively connected to the signal input terminals of the interface expansion board. After being converted into HDMI signals by the interface expansion board, the signals are input to the display chip.

[0038] The Type-C interface 10 and DVI interface 7 are converted into HDMI signals via an adapter or conversion cable and then connected to the display chip's electrical signals.

[0039] To facilitate the inspection and maintenance of railway systems, this utility model designs a terminal inspection and display device 1 suitable for railway maintenance. When maintenance personnel are conducting inspections, they only need to carry one display device 1 to display most of the systems in the railway operation system for debugging operations. When performing multi-interface maintenance, they only need to connect the signal terminals of the corresponding devices to the corresponding interfaces of this utility model at the same time, and switch the signals through the OSD keypad 5 to display the status of the corresponding devices on the LCD panel 2. Switching back and forth is very convenient and does not require frequent disconnection.

[0040] Based on the actual needs of the railway system, this utility model is designed with interfaces such as VGA interface 6, HDMI input interface 8, DVI interface 7, DP interface 9, Type-C interface 10, RJ45 network remote device debugging interface 14, CAN bus debugging interface 13, and COM switch-type device debugging interface 12 to meet the maintenance needs of the railway system.

[0041] To address the issue of inconsistent signals, a display chip, interface conversion chip, and adapter or conversion cable are used together to convert audio and video signals, unifying the display device interface standard to support multiple interface standards such as HDMI, VGA, and DVI. Adapters are also provided to ensure compatibility with different types of servers and industrial control computers.

[0042] Among them, VGA interface 6 and HDMI interface are common in railway systems and are used in many related devices. VGA interface 6 is a common interface in railway systems, such as the maintenance and testing interface of servers in video surveillance systems, passenger information systems, and signal ATS systems. HDMI interface is a dedicated wireless system interface for railways.

[0043] Therefore, the display chip can be the RTD2556 chip. This chip is not only suitable for converting VGA interface 6 to eDP screens, but also for converting HDMI interface to eDP screens. The signals input from VGA interface 6 and HDMI interface can be converted into eDP signals by the display chip for direct playback.

[0044] The display chip serves as the main chip, integrating a CPU control module, an audio signal decoding module, a power amplification module, a video signal decoding module, a format conversion module, and a display driver module.

[0045] The CPU control module is connected to the speaker 3 via an audio signal decoding module and a power amplification module to enable audio playback; the CPU control module is connected to the LCD panel 2 via a video signal decoding module, a format conversion module, and a display driver module to enable video playback.

[0046] In addition, many signals in the railway system cannot be directly displayed as video through the RTD2556 display chip, such as Type-C interface 10, DVI interface 7, and DP interface 9.

[0047] Therefore, after converting the Type-C interface 10 and DVI interface 7 into HDMI signals via an adapter or conversion cable, they can be connected to the electrical signals of the display chip. This enables the DVI interface 7 of the access control system and video surveillance system workstation in the railway system to be connected, as well as the Type-C interface 10 of the instruments and test fixtures to be connected.

[0048] For PD signals, an interface conversion chip can be used to convert the signal into an HDMI signal, which is then decoded and played by a display chip. As a preferred solution, the interface conversion chip used is the CS5263. The CS5263 is a high-performance DP1.4 to HDMI2.0b converter chip that enables DP interface 9 connection for railway broadcasting systems. The USB interface 11 provides multiple input methods, such as USB, Bluetooth keyboard, and mouse.

[0049] The network remote device debugging interface 14 is used to connect to the server IPMI interface, the MGMT interface of network core switches, and other devices, as well as the network management interface. It uses a network cable for connection and management of the devices, controlling functions such as fan speed and enabling or disabling certain low-level functions, such as disabling a USB port or an RJ45 port on a device. Therefore, the network remote device debugging interface 14 can use an RJ45 network cable interface.

[0050] The CAN bus debugging interface 13 can be used in subway train vehicles. Both the ground and underground vehicle internal controllers use CAN bus communication. The OBD interface is used as an external diagnostic and debugging interface. Therefore, the OBD interface is added for purposes such as reading vehicle fault codes, troubleshooting vehicle faults, and setting and debugging vehicle parameters such as drive motor protection current and maintenance mileage. Therefore, the CAN bus debugging interface 13 adopts the OBD interface.

[0051] The COM switch-type device debugging interface 12 is used to connect to the console port of the network device for low-level device debugging. For example, when the switch firmware is lost, all RJ45 interfaces of the switch, including the MGMT port, are unusable and the switch system does not run. At this time, it is necessary to use the COM interface to enter the command line and re-flash the firmware through commands. Therefore, the COM switch-type device debugging interface 12 adopts the RS232 interface.

[0052] The three signals—network remote device debugging interface 14, CAN bus debugging interface 13, and COM switch-type device debugging interface 12—are converted into HDMI signals by the Raspberry Pi Compute Module 4 and directly connected to the display chip. The Raspberry Pi Compute Module 4 contains a processor, memory, and other necessary hardware components. It can be inserted into a dedicated dock or expansion board to achieve richer functions and interface expansion. In addition, the Raspberry Pi Compute Module 4 can also manage the power module, such as displaying the remaining battery power, prompting the screen when the battery is low and needs to be charged, and automatically going into sleep mode after a period of inactivity to save battery power.

[0053] The power interface 4 is electrically connected to the power module, which is a mature power module purchased from the supplier and has stable charging and discharging functions. The power module supplies power to the LCD panel 2, the display chip, and the interface conversion chip. The power module can have a built-in high-capacity lithium battery as a storage battery. After charging, the storage battery can ensure the long-term working needs of the equipment.

[0054] The above provides a detailed description of a portable multi-interface terminal maintenance display device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, based on the idea of ​​this utility model, there will be changes in the specific implementation and application scope. Changes and improvements to this utility model are possible without exceeding the concept and scope specified in the appended claims. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A portable multi-interface terminal inspection display device, characterized by: The upper surface of the display device is provided with a full-screen liquid crystal panel, and the side of the display device is provided with a VGA interface, an HDMI input interface, a DVI interface, a DP interface, a USB interface, a Type-C interface, an RJ45 network remote device debugging interface, a CAN bus debugging interface, a COM switcher type device debugging interface, a power supply interface and a loudspeaker.

2. The portable multi-interface terminal inspection display device according to claim 1, characterized by: The display chip adopts an RTD2556 chip.

3. The portable multi-interface terminal inspection display apparatus according to claim 2, characterized by: The display chip is internally integrated with a CPU control module, an audio signal decoding module, a power amplification module, a video signal decoding module, a format conversion module and a display driving module.

4. The portable multi-interface terminal inspection display apparatus according to claim 1, characterized by: The interface conversion chip adopts a CS5263.

5. The portable multi-interface terminal inspection display apparatus according to claim 1, wherein: The network remote device debugging interface adopts an RJ45 network cable interface.

6. The portable multi-interface terminal inspection display apparatus according to claim 1, wherein: The CAN bus debugging interface adopts an OBD interface.

7. The portable multi-interface terminal inspection display apparatus according to claim 1, wherein: The COM switcher type device debugging interface adopts an RS232 interface.

8. The portable multi-interface terminal inspection display apparatus according to claim 1, wherein: The interface expansion board adopts a Raspberry Pi Compute Module 4.

9. The portable multi-interface terminal inspection display apparatus according to claim 1, wherein: The power supply interface is electrically connected with the power supply module, and the power supply module supplies power to the liquid crystal panel, the display chip and the interface conversion chip.

10. The portable multi-interface terminal inspection display apparatus according to claim 9, wherein: The power supply module is internally provided with a high-capacity lithium battery as a storage battery.

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