View screen display system suitable for different main control cards

Abstract

The utility model discloses a video display system suitable for different master control cards, comprising a substrate and a master control card, the substrate is integrated with a DC power supply plug terminal, a display interface, a communication interface, a USB interface and an audio interface; a main control card mounting bonding pad is processed in the middle of the substrate; a PMIC circuit, an EMMC circuit and a DDR circuit are integrated on the main control card; corresponding pins of the main control card installation bonding pad are respectively connected with the PMIC circuit, the EMMC circuit, the DDR circuit, the display interface, the communication interface, the USB interface and the audio interface. According to the utility model, the structure arrangement is reasonable, the main control card installation bonding pad used for installing the main control card is arranged in the middle of the substrate, different main control cards can be mounted according to needs, different use requirements and technical index application requirements can be realized by replacing different main control cards, the overall universality is improved, and the cost is reduced. Different user requirements can be met, and the research and development difficulty and the research and development cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of video screen display, and in particular relates to a video screen display system suitable for different main control cards. Background Art

[0002] At present, many video display solutions based on domestic chips are based on Rockchip's solutions. Rockchip has many product series, including RK3288, RK3399, RK3566 / 68, RK3588, etc. The video output interfaces of different series of products are similar, most of which support HDMI, MIPI, LVDS, etc., but the technical parameters are quite different, and the resolution, number of channels, data rate, etc. are different, so the application environment and user objects are also different. Therefore, in the video display structure of the prior art, the required technical indicators are complex and changeable. When replacing different models, different motherboards need to be replaced, so the universal performance of the overall structure is very limited, which not only greatly increases the cost of use, but also greatly increases the R&D cost. At the same time, in the actual application process, its external interfaces in some industry applications are basically relatively unified, such as all need to have HDMI interfaces, need to support LVDS screens, and support MIPI screens. Therefore, designing a universal motherboard is a technical problem that technicians in this technical field need to solve. Summary of the invention

[0003] The utility model aims to provide a video screen display system which is suitable for different main control cards and has a reasonable structure and is conducive to improving versatility.

[0004] The technical solution to achieve the purpose of the utility model is a video display system suitable for different main control cards, including a substrate and a main control card, wherein the substrate is integrated with a DC power supply plug terminal, a display interface, a communication interface, a USB interface and an audio interface;

[0005] A main control card mounting pad for mounting a main control card is processed in the middle of the substrate;

[0006] The main control card is integrated with a PMIC circuit, an EMMC circuit and a DDR circuit;

[0007] The corresponding pins of the main control card mounting pads are respectively connected to the PMIC circuit, the EMMC circuit, the DDR circuit, the display interface, the communication interface, the USB interface and the audio interface;

[0008] The DC power plug terminal is connected to the PMIC circuit, and the PMIC circuit is respectively connected to the main control card mounting pad, the EMMC circuit and the power supply end of the DDR circuit.

[0009] Further preferably, the display interface includes an HDMI interface, a MIPI interface and / or a dual-channel LVDS interface.

[0010] It is further preferred that: the audio interface includes a MIC interface, a PH-A connector external speaker, an HPO interface and a dual power amplifier circuit;

[0011] The base plate is also welded and fixed with a network port, a WIFI module, an antenna mounting seat and a TF memory card socket;

[0012] The network port, WIFI module, antenna mounting seat and TF memory card socket are all connected to the corresponding pins of the main control card mounting pad.

[0013] More preferably, the number of the USB interfaces is at least four.

[0014] Further preferably, the communication interface includes a 52-pin PCle mini slot, a CAN data bus interface and an RS485 communication interface.

[0015] The utility model has positive effects: the structure of the utility model is reasonably arranged, and a main control card mounting pad for installing the main control card is arranged in the middle of the base plate, and different main control cards can be mounted as needed. At the same time, the DC power plug terminal, display interface, communication interface, USB interface and audio interface on the base plate are fixedly welded. When in use, different usage requirements and technical indicator application requirements can be achieved by simply replacing different main control cards, which is conducive to improving the overall versatility and can meet different user needs. At the same time, it is also conducive to reducing the difficulty and cost of research and development, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure numerals: substrate 1, DC power plug terminal 2, display interface 3, communication interface 4, PCle mini slot 41, CAN data bus interface 42, RS485 communication interface 43, USB interface 5, audio interface 6, main control card mounting pad 7, network port 8, WIFI module and antenna mounting seat 9, TF memory card socket 10, main control card 11. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See Figure 1 A video display system suitable for different main control cards includes a substrate 1 and a main control card 11, and the substrate is integrated with a DC power plug terminal 2, a display interface 3, a communication interface 4, a USB interface 5 and an audio interface 6; in this embodiment, the substrate is a conventional PCB board, so it is not recorded in detail, but simply applied. At the same time, each interface and terminal are also conventional applications of the prior art, so they are not recorded in detail.

[0022] At the same time, the middle part of the substrate is processed with a main control card installation pad 7 for installing the main control card 11; in this embodiment, the main control card installation pad 7 is a 180-pin pad, and the main control card is integrated with a PMIC circuit, an EMMC circuit, and a DDR circuit; at the same time, in the actual application process, the main control card can also be integrated with an SOC circuit, which improves the versatility of the overall structure. During processing, the corresponding pins of the main control card installation pad are respectively connected to the PMIC circuit, the EMMC circuit, the DDR circuit, the display interface, the communication interface, the USB interface, and the audio interface; the DC power plug terminal is connected to the PMIC circuit, and the PMIC circuit is respectively connected to the main control card installation pad, the EMMC circuit, and the power supply end of the DDR circuit. The PMIC circuit is used to manage the power supply equipment in the host system, which is a conventional application of the prior art, so it is not recorded in detail.

[0023] At the same time, the display interface 3 includes an HDMI interface, a MIPI interface and / or a dual-channel LVDS interface. The audio interface includes a MIC interface, a PH-A connector external speaker, an HPO interface and a dual power amplifier circuit; the substrate is also welded and fixed with a network port 8, a WIFI module and an antenna mounting seat 9 and a TF memory card socket 10; the network port, WIFI module and antenna mounting seat and the TF memory card socket are all connected to the corresponding pins of the main control card mounting pad. The number of USB interfaces is at least four. The communication interface 4 includes a 52-pin PCle mini slot 41, a CAN data bus interface 42 and an RS485 communication interface 43.

[0024] The utility model has positive effects: the structure of the utility model is reasonably arranged, and a main control card mounting pad for installing the main control card is arranged in the middle of the base plate, and different main control cards can be mounted as needed. At the same time, the DC power plug terminal, display interface, communication interface, USB interface and audio interface on the base plate are fixedly welded. When in use, different usage requirements and technical indicator application requirements can be achieved by simply replacing different main control cards, which is conducive to improving the overall versatility and can meet different user needs. At the same time, it is also conducive to reducing the difficulty and cost of research and development, and has strong applicability and good practicality.

[0025] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0026] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A video display system applicable to different main control cards, comprising a substrate and a main control card, characterized in that: The substrate is integrated with a DC power plug terminal, a display interface, a communication interface, a USB interface and an audio interface; A main control card mounting pad for mounting a main control card is processed in the middle of the substrate; The main control card is integrated with a PMIC circuit, an EMMC circuit and a DDR circuit; The corresponding pins of the main control card mounting pads are respectively connected to the PMIC circuit, the EMMC circuit, the DDR circuit, the display interface, the communication interface, the USB interface and the audio interface; The DC power plug terminal is connected to the PMIC circuit, and the PMIC circuit is respectively connected to the main control card mounting pad, the EMMC circuit and the power supply end of the DDR circuit.

2. A video display system applicable to different main control cards according to claim 1, characterized in that: The display interface includes an HDMI interface, a MIPI interface and / or a dual-channel LVDS interface.

3. A video display system applicable to different main control cards according to claim 2, characterized in that: The audio interface includes a MIC interface, a PH-A connector external speaker, an HPO interface and a dual power amplifier circuit.

4. The video display system applicable to different main control cards according to claim 3, characterized in that: The base plate is also welded and fixed with a network port, a WIFI module, an antenna mounting seat and a TF memory card socket; The network port, WIFI module, antenna mounting seat and TF memory card socket are all connected to the corresponding pins of the main control card mounting pad.

5. The video display system applicable to different main control cards according to claim 4, characterized in that: The number of the USB interfaces is at least four.

6. The video display system applicable to different main control cards according to claim 5, characterized in that: The communication interface includes a 52-pin PCle mini slot, a CAN data bus interface and an RS485 communication interface.

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