CN214896390U

CN214896390U - Interactive tablet

Info

Publication number: CN214896390U
Application number: CN202121265714.7U
Authority: CN
Inventors: 肖相伟
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-11-26
Anticipated expiration: 2031-06-07

Abstract

The application relates to an interface module, a communication device and an interaction board. The interface module comprises an IO circuit, a signal selector and a plurality of video signal input devices; the input end of the signal selector is connected with each video signal input device, and the output end of the signal selector is connected with the main board; the IO circuit is used for connecting the mainboard, so that the mainboard confirms the type and the number of the signal sources according to the level signal output by the IO circuit. Through the interface module, the main board of the client can clearly access the type and the number of signal sources under the condition of not updating software, the channel display of different combinations can be dynamically adapted, when the requirement changes, the target can be achieved by changing the level signal output by the IO circuit, and the circuit design and the software configuration do not need to be carried out again. Furthermore, the level signal output by the IO circuit of each interface module is fixed, and when the signal source changes, the interface module corresponding to the latest signal source is replaced.

Description

Interactive tablet

Technical Field

The application relates to the technical field of external equipment of electronic equipment, in particular to an interactive flat plate.

Background

With the development of interactive flat panels, the demand scenes of the interactive flat panels are more and more. In the beginning of the design of display devices such as interactive flat panels, various requirements (such as the requirement of signal channels) are met as much as possible. When the demand changes, the board card is often required to be modified and redesigned for the interactive flat panel.

In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the conventional apparatus has problems of repeated development and high cost.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an interactive flat panel capable of avoiding repeated development and reducing cost.

In order to achieve the above object, in one aspect, an embodiment of the present invention provides an interactive flat plate, including a side plate and an interactive flat plate body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

the input end of the signal selector is connected with each video signal input device, and the output end of the signal selector is connected with the interactive flat plate body; the IO circuit is used for connecting the interactive flat plate body so that the interactive flat plate body can confirm the type and the number of the signal sources according to the level signals output by the IO circuit.

In one embodiment, the IO circuit includes a plurality of IO interfaces;

and each IO interface is used for connecting the interactive flat plate body.

In one embodiment, the IO circuit further includes any number of pull-up circuits and any number of pull-down circuits;

one end of any pull-up circuit is used for connecting a working power supply, and the other end of the pull-up circuit is connected with one end of the corresponding IO interface; one end of any pull-down circuit is used for grounding, and the other end of the pull-down circuit is connected with one end of the corresponding IO interface; the other end of each IO interface is connected with the interactive flat plate body.

In one embodiment, the number of IO interfaces is 5.

In one embodiment, the USB interface further comprises a USB expansion device; the USB expansion equipment is used for connecting the interactive flat plate body.

In one embodiment, the USB expansion device comprises a plurality of USB interfaces and a USB hub;

one end of the USB concentrator is used for connecting the interactive flat body, and the other end of the USB concentrator is connected with each USB interface.

In one embodiment, the plurality of video signal input devices comprises any one or any combination of the following devices: the device comprises a conversion chip, an HDMI (high-definition multimedia interface), a VGA (video graphics array) interface and a Type-C interface;

the HDMI interface is connected with the signal selector; the VGA interface is connected with the signal selector through the conversion chip; the Type-C interface is connected with the signal selector through the conversion chip.

In one embodiment, the conversion chip comprises a Type-C to HDMI chip and a VGA to HDMI chip;

the VGA interface is connected with the signal selector through a VGA-to-HDMI chip; the Type-C interface is connected with the signal selector through a Type-C to HDMI chip.

In one embodiment, the signal selector comprises an HDMI switch;

the HDMI switcher comprises a first input interface, a second input interface, a third input interface and an output interface; the first input interface is connected with the VGA-to-HDMI chip; the second input interface is connected with the Type-C-to-HDMI chip; the third input interface is connected with the HDMI; the output interface is connected with the interactive flat plate body.

In one embodiment, the interactive flat plate body is provided with an interface;

the interface comprises any one or any combination of the following interfaces: HDMI signal interface, USB signal interface and IO signal interface.

One of the above technical solutions has the following advantages and beneficial effects:

the interactive flat plate comprises a side plate and an interactive flat plate body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices; the input end of the signal selector is connected with each video signal input device, and the output end of the signal selector is connected with the mainboard interactive flat body; the IO circuit is used for connecting the mainboard interactive flat body, so that the interactive flat body mainboard confirms the type and the number of the signal sources according to the level signal output by the IO circuit. Through the interactive tablet, the type and the number of signal sources can be clearly accessed by the interactive tablet under the condition that software is not required to be updated, the channel display of different combinations can be dynamically adapted, when 1 HDMI, 1 TypeC and 2 USB are required to be replaced by 1 HDMI, and when 1 USB is required, a level signal output by an IO circuit can be changed to reach a target without carrying out circuit design and software configuration again. Further, the level signal output by the IO circuit of each side board is fixed, and when the signal source changes, the side board corresponding to the latest signal source may be replaced.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular description of preferred embodiments of the application, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the subject matter of the present application.

FIG. 1 is a first schematic block diagram of an interface module in one embodiment;

FIG. 2 is a second schematic block diagram of an interface module in accordance with one embodiment;

FIG. 3 is a third schematic block diagram of an interface module in accordance with an embodiment;

FIG. 4 is a fourth schematic block diagram of an interface module in one embodiment;

FIG. 5 is a block diagram of a fifth exemplary configuration of an interface module according to an embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

At present, when the product is designed according to the requirements of customers, a front small plate is generally adopted for product design, and the scheme mainly has the following problems: dynamic replacement and flexible adjustment cannot be performed; when a new demand is changed, various structures, electronic designs, etc. need to be changed. Because the current commercially available designs are all developed initially according to the requirements of customers, the subsequent dynamic adaptation scenes are not considered, so that the cost is increased due to repeated development, for example, when 1 HDMI, 1 TypeC and 2 USB are needed, circuit design and software configuration need to be performed on the four interfaces again, and when the requirements are changed to 1 HDMI and 1 USB, circuit design and software configuration need to be performed on the two interfaces again.

In one embodiment, as shown in fig. 1, there is provided an interactive tablet comprising a side-disposed plate and an interactive tablet body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

Wherein the signal selector is a device that selects a target signal from a plurality of input signals; the IO circuit may be any circuit capable of outputting a high/low level signal in the art. The video signal input device is any device capable of inputting a video signal in the art, and the video signal may include a VGA signal, an HDMI signal, and the like. The side board is used for accommodating the IO circuit, the signal selector and the video signal input devices, is matched with the interactive flat panel body for use so as to achieve portability, and can be any body structure in the field. The interactive flat plate body is a body structure of the flat plate, and the body structure is usually cuboid.

Specifically, the IO circuit is connected to the interactive tablet body, and outputs different numbers of level signals to the interactive tablet body, for example, 4 high level signals and 1 low level signal to the interactive tablet body, and the interactive tablet body may determine the type of the signal source accessed by the interface module and the number of the signal sources according to the level signals according to a logic table configured in advance. In one specific example, the logic table may include the number of high levels, the number of low levels, and the type and number of corresponding signal sources, which can be determined with knowledge of the level signals.

It should be noted that the level signal output by the IO circuit on each side board is fixed, and a side board matched with the signal source may be selected when the signal source changes.

Through the interactive tablet, the type and the number of signal sources can be clearly accessed by the interactive tablet under the condition that software is not required to be updated, the channel display of different combinations can be dynamically adapted, when 1 HDMI, 1 TypeC and 2 USB are required to be replaced by 1 HDMI, and when 1 USB is required, a level signal output by an IO circuit can be changed to reach a target without carrying out circuit design and software configuration again. Further, the level signal output by the IO circuit of each side board is fixed, and when the signal source changes, the side board corresponding to the latest signal source may be replaced.

In one embodiment, as shown in fig. 2, there is provided an interactive tablet comprising a side-disposed plate and an interactive tablet body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

The IO circuit comprises a plurality of IO interfaces;

and each IO interface is used for connecting the interactive flat plate body.

The I/O interface is equipment for exchanging information between the interactive flat body and the controlled object. In this embodiment, the controlled object is a device capable of outputting a high/low level, such as a pull-up circuit and a pull-down circuit.

Specifically, each IO interface has a fixed level to output to the interactive flat plate body, and the fixed level can be high level or low level. The number of IO interfaces is not specifically limited herein. In one specific example, the number of IO interfaces is the same as the number of input interfaces of the signal source. In one embodiment, the number of IO interfaces is 5.

In one embodiment, as shown in fig. 3, there is provided an interactive tablet comprising a side-disposed plate and an interactive tablet body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

The IO circuit comprises a plurality of IO interfaces;

and each IO interface is used for connecting the interactive flat plate body.

The IO circuit further comprises pull-up circuits and pull-down circuits in any number; one end of any pull-up circuit is used for connecting a working power supply VCC, and the other end of the pull-up circuit is connected with one end of a corresponding IO interface; one end of any pull-down circuit is used for grounding, and the other end of the pull-down circuit is connected with one end of the corresponding IO interface; the other end of each IO interface is connected with the interactive flat plate body.

The pull-up circuit clamps an output signal of the IO interface to a high-level signal. The pull-down circuit is a circuit for clamping an output signal of the IO interface to a low level signal.

Specifically, the IO interface is enabled to output a high level or a low level by the pull-up circuit and the pull-down circuit.

In one embodiment, as shown in fig. 4, there is provided an interactive tablet comprising a side-disposed plate and an interactive tablet body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

The USB interface also comprises USB expansion equipment; the USB expansion equipment is used for connecting the interactive flat plate body.

The USB expansion device is any device in the art that expands one USB interface to multiple interfaces and enables the multiple interfaces to be used simultaneously.

Specifically, the USB expansion device is used to increase the number of USB devices that can be accessed, so as to insert more USB devices.

In one embodiment, an interactive tablet is provided, comprising a side plate and an interactive tablet body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

The USB expansion equipment comprises a plurality of USB interfaces and a USB hub;

Specifically, the USB hub is a device that expands one USB interface into a plurality of interfaces, and may be divided into a USB2.0 hub, a USB3.0 hub, and a USB3.1 hub according to the USB protocol. . In one specific example, the USB hub is a 4 in one out 3.0 USBhub chip.

In one embodiment, as shown in fig. 5, the plurality of video signal input devices includes any one or any combination of the following devices: the device comprises a conversion chip, an HDMI (high-definition multimedia interface), a VGA (video graphics array) interface and a Type-C interface;

The VGA interface is a special interface for outputting data by adopting a VGA standard. The HDMI interface is a fully digital video and audio transmission interface, and can transmit uncompressed audio and video signals. The Type-C interface is an interface that can be applied to both a PC (master device) and an external device (slave device, such as a mobile phone). The conversion chip is used for converting the signal data.

Specifically, the VGA signal input by the VGA interface is converted into an HDMI signal by the conversion chip and transmitted to the signal selector. The signal that Type-C interface input passes through conversion chip and converts the HDMI signal and transmits signal selector. It should be noted that the number of VGA interfaces and Type-C interfaces is not specifically limited herein.

the VGA interface is connected with the signal selector through a VGA-to-HDMI chip; the Type-C interface is connected with the signal selector through a Type-C to HDMI chip. Specifically, the signal selector includes an HDMI switch;

Specifically, the HDMI signal interface of the main board is used for connecting the signal selector on the side board, and the USB signal interface is used for connecting the USB hub on the side board. The IO signal interface is used for connecting an IO circuit. The side board is provided with 1 USBhub chip (USB hub) with 3.0 ports and 4 ports, a chip with 1 Type-C converted to HDMI, a chip with 1 HDMISwitch with 4 ports and one output HDMISwitch and a chip with 1 VGA converted to HDMI, and the side board can support 4 USB ports, 1 Type-C, 1 VGA signal and 2 HDMI signals. In a specific example, an interface is arranged on the motherboard, and the interface includes one path of HDMI signal interface, 2 paths of USB signal interfaces, and 5 GPIO extended IO interfaces. The IO circuit includes 5 IO interfaces and a pull-up circuit or a pull-down circuit corresponding to the IO interfaces.

In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An interactive flat plate is characterized by comprising a side plate and an interactive flat plate body; the side board is provided with an IO circuit, a signal selector and a plurality of video signal input devices;

the input end of the signal selector is connected with each video signal input device, and the output end of the signal selector is connected with the interactive flat plate body; the IO circuit is used for being connected with the interactive flat plate body, so that the interactive flat plate body confirms the type and the number of signal sources according to the level signal output by the IO circuit.

2. The interactive tablet of claim 1, wherein the IO circuit comprises a plurality of IO interfaces;

and each IO interface is used for connecting the interactive flat plate body.

3. The interactive tablet of claim 2, wherein the IO circuit further comprises any number of pull-up circuits and any number of pull-down circuits;

one end of any pull-up circuit is used for being connected with a working power supply, and the other end of the pull-up circuit is connected with one end of the corresponding IO interface; one end of any one of the pull-down circuits is used for grounding, and the other end of the pull-down circuit is connected with one end of the corresponding IO interface; and the other end of each IO interface is connected with the interactive flat plate body.

4. The interactive tablet of claim 2, wherein the number of IO interfaces is 5.

5. The interactive tablet of claim 1, further comprising a USB expansion device; the USB expansion equipment is used for connecting the interactive flat plate body.

6. The interactive tablet of claim 5, wherein the USB expansion device comprises a plurality of USB interfaces and a USB hub;

one end of the USB concentrator is used for being connected with the interactive flat plate body, and the other end of the USB concentrator is connected with the USB interfaces.

7. The interactive tablet of claim 1, wherein the plurality of video signal input devices comprise any one or any combination of the following devices: the device comprises a conversion chip, an HDMI (high-definition multimedia interface), a VGA (video graphics array) interface and a Type-C interface;

8. The interactive tablet of claim 7, wherein the conversion chip comprises a Type-C to HDMI chip and a VGA to HDMI chip;

the VGA interface is connected with the signal selector through the VGA-to-HDMI chip; the Type-C interface is connected with the signal selector through the Type-C to HDMI conversion chip.

9. The interactive tablet of claim 8, wherein the signal selector comprises an HDMI switch;

10. The interactive tablet of claim 1, wherein the interactive tablet body is provided with an interface;