CN211831017U - Function expansion device of display equipment and intelligent display system - Google Patents

Abstract

The present application provides a function expansion device of a display device and an intelligent display system. The function expansion device of the display device includes a TYPEC interface, an interface signal acquisition circuit and a video signal conversion circuit that are electrically connected to each other; the interface signal acquisition circuit includes a single-chip microcomputer and an interface signal input circuit; the interface signal input circuit includes a sensor signal Input circuit; the sensing signal input circuit obtains the sensing signal, converts the sensing signal into a USB format signal, and transmits it to the intelligent display device through the TYPEC interface; the video signal conversion circuit obtains the video signal and converts the video signal into DP The format video signal is transmitted to the intelligent display device for display through the TYPEC interface. The function extension device of the display device of the present application is connected with the intelligent display device through a general TYPEC interface, which expands the functions of the intelligent display device, reduces the function modules and interfaces of the intelligent display device, and facilitates the standardized production of the intelligent display device.

Description

Function expansion device for display equipment, intelligent display system

technical field

The utility model relates to the field of function expansion of intelligent display equipment, in particular to a function expansion device of display equipment and an intelligent display system.

Background technique

The existing interactive smart tablet is generally designed to integrate the whole machine interface, and the integrated whole machine interface design needs to set up corresponding functional modules on the whole interactive smart tablet machine, and each functional module needs to be equipped with a corresponding interface to realize the data. transmission of signals. In this way, the research and development cycle of the whole interactive smart tablet will be prolonged, and the whole machine will have more interfaces. In addition, each interactive smart tablet cannot have many functions due to different application scenarios and different objects of use. In order to meet a variety of application environments and a variety of different service objects, it is necessary to continuously develop complete machines that match various functions, so that the developed complete machines cannot be standardized.

Utility model content

In order to overcome the problems existing in the related art, the embodiment of the present utility model provides a function expansion device of a display device, an intelligent display system, which enables the intelligent display device to simultaneously acquire the sensing signal and the video signal through the same interface, thereby realizing the intelligent display device. The function expansion of the intelligent display device reduces the number of modules and interfaces on the intelligent display device, which is convenient for the standardized production of the intelligent display device.

According to the first aspect of the embodiments of the present utility model, a function expansion device of a display device is provided, including a TYPEC interface, an interface signal acquisition circuit and a video signal conversion circuit;

The interface signal acquisition circuit includes a single-chip microcomputer and an interface signal input circuit; the single-chip microcomputer has a signal input port and a signal output port; the signal output port of the single-chip microcomputer is connected to the TYPEC interface; the interface signal input circuit is connected to the The signal input port of the single-chip microcomputer; the interface signal input circuit includes a sensing signal input circuit; the sensing signal input circuit receives the sensing signal and transmits it to the single-chip microcomputer; the single-chip microcomputer receives the sensing signal and converts it into the TYPEC interface support The first format signal is output through the TYPEC interface;

The video signal conversion circuit includes a video signal conversion chip and a video input interface; the video signal conversion chip has a signal input port and a signal output port; the signal output port of the video signal conversion chip is connected with the TYPEC interface; the The video input interface is connected to the signal input port of the video signal conversion chip, and the video input interface receives the video signal and transmits it to the video signal conversion chip; the video signal conversion chip receives the video signal and converts it into a second video signal supported by the TYPEC interface. The format signal is output through the TYPEC interface.

In an optional embodiment, the first format signal is a USB format signal; the single-chip microcomputer converts the sensing signal transmitted by the sensing signal input circuit into a USB format signal, and outputs it through the TYPEC interface.

In an optional embodiment, the interface signal input circuit further includes:

A GPIO interface circuit, the GPIO interface circuit is connected to a controller, receives a control signal and transmits it to the single-chip microcomputer; the single-chip computer converts the control signal received into the USB format signal supported by the TYPEC interface, and outputs through the TYPEC interface;

and/or a UART interface circuit, the UART interface circuit is connected to a communication device, receives a communication signal and transmits it to the single-chip microcomputer; the single-chip microcomputer converts the communication signal received into the USB format signal supported by the TYPEC interface, and passes the TYPEC interface. output.

In an optional embodiment, the second format signal is a DP format video signal; the video signal conversion circuit converts the video signal into a DP format video signal after receiving the video signal, and outputs it through the TYPEC interface.

In an optional embodiment, the video signal conversion circuit includes one or a combination of two or more of the following video conversion circuits:

HDMI video conversion circuit, DVI video conversion circuit, VGA video conversion circuit.

In an optional embodiment, the TYPEC interface is a TYPEC male socket or a TYPEC female socket.

According to a second aspect of the embodiments of the present invention, an intelligent display system is provided, including the above-mentioned function expansion device of a display device and an intelligent display device;

The intelligent display device includes a casing, a display screen, a control board and a TYPEC interface of the display device arranged inside the casing; the display screen has a video signal input port; the control board has a signal input port and a signal output port; The signal output port of the control board is connected to the video signal input port of the display screen; the TYPEC interface of the display device is connected to the signal input port of the control board;

The TYPEC interface of the function extension device of the display device is connected to the TYPEC interface of the display device;

The control board receives the USB format signal input by the TYPEC interface of the display device, and controls the display screen to execute control commands;

The control board receives the DP format video signal input by the TYPEC interface of the display device, and controls the display screen to display.

In an optional embodiment, the TYPEC interface of the display device is a TYPEC female socket or a TYPEC male socket matching the TYPEC interface.

By applying the technical solutions of the embodiments of the present invention, sensing signals, control signals and communication signals of other equipment, and video signals are obtained by setting the function expansion device of the display device, and the sensing signals, control signals, communication signals and The video signal is converted into a format signal supported by the TYPEC interface, and transmitted to the intelligent display device through the TYPEC interface to realize the function expansion of the intelligent display device, thereby reducing the sensing signal acquisition circuit and interface on the intelligent display device, reducing the number of intelligent display devices. The video signal acquisition module and interface are convenient for the standardized production of intelligent display devices.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not limiting of the invention.

For better understanding and implementation, the present utility model is described in detail below with reference to the accompanying drawings.

Description of drawings

1 is a structural block diagram of a function expansion device of a display device according to an embodiment of the present invention;

Fig. 2 is the pin definition diagram of the TYPEC interface described in the embodiment of the utility model;

3 is a structural block diagram of an intelligent display system according to an embodiment of the present invention.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.

The terms used in the present invention are for the purpose of describing particular embodiments only, and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information without departing from the scope of the present invention. Depending on the context, the words "if"/"if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

Since traditional intelligent display devices are usually designed with integrated whole machine interface, corresponding functional modules need to be set on the whole machine of intelligent display device, such as sensor signal acquisition circuit and video signal acquisition module, and each functional module needs to be equipped with Corresponding interfaces are used to realize the transmission of data signals, so that the intelligent display device has many functional modules and interfaces, which cannot realize standardized production.

In order to solve the above problems, an embodiment of the present invention provides a function expansion device of a display device, through which a sensor signal and a video signal are acquired, and the sensor signal and the video signal are converted into a format signal supported by a TYPEC interface, It is transmitted to the intelligent display device through the TYPEC interface to realize the function expansion of the intelligent display device, thereby reducing the sensing signal acquisition circuit and interface on the intelligent display device, and reducing the video signal acquisition module and interface on the intelligent display device, which is convenient for intelligent display. Standardized production of equipment.

Hereinafter, the embodiments of the technical solutions of the present invention will be described with reference to the accompanying drawings.

Please refer to FIG. 1 , which is a structural block diagram of an apparatus for extending a function of a display device according to an embodiment of the present invention.

The function expansion device of the display device according to the embodiment of the present invention includes a TYPEC interface 11, an interface signal acquisition circuit 12 and a video signal conversion circuit 13;

The interface signal acquisition circuit 12 includes a single chip 121 and an interface signal input circuit 122; the single chip 121 has a signal input port and a signal output port; the signal output port of the single chip 121 is connected to the TYPEC interface 11; the interface signal The input circuit 122 is connected to the signal input port of the single-chip microcomputer 121; the interface signal input circuit 122 includes a sensor signal input circuit 1221;

The sensing signal input circuit 1221 receives the sensing signal and transmits it to the single-chip microcomputer 121 ; the single-chip microcomputer 121 receives the sensing signal and converts it into a USB format signal supported by the TYPEC interface 11 , and outputs it through the TYPEC interface 11 .

The video signal conversion circuit 13 includes a video signal conversion chip and a video input interface; the video signal conversion chip has a signal input port and a signal output port; the signal output port of the video signal conversion chip is connected to the TYPEC interface 11; The video input interface is connected to the signal input port of the video signal conversion chip, and the video input interface receives the video signal and transmits it to the video signal conversion chip; the video signal conversion chip receives the video signal and converts it into a signal supported by the TYPEC interface. The DP video format signal is output through the TYPEC interface 11 .

Wherein, in the sensing signal acquisition circuit 12 , the single-chip microcomputer 121 receives the sensing signal transmitted by the sensing signal input circuit 1221 and converts it into a USB format signal, which is output through the TYPEC interface 11 .

The single-chip microcomputer 121 is the micro-controller of the sensing signal acquisition circuit 12 in this embodiment. After acquiring the sensing signal, the sensing signal is converted into a USB signal and transmitted to the intelligent display device through the D+/D- pins of the TYPEC interface. in order to obtain sensory signals.

The TYPEC interface is USB Type-C, which is a brand-new form of USB interface. Because its interface is symmetrical, its plug and cable direction can be either positive or negative. At the same time, the interface supports USB data transmission. Support DP (DisplayPort) data transmission. In addition, it has the following characteristics: the interface is thin, which can support thinner and lighter devices, which can make the design of portable devices thinner and smaller; it supports higher power transmission, up to 100 watts, and supports more high-power load devices; Single-port and dual-port TYPEC, flexible application; support bidirectional power transmission, both power transmission and power reception.

As shown in FIG. 2 , which is a pin definition diagram of the TYPEC interface according to the embodiment of the present invention. The TYPEC interface has 4 pairs of TX/RX differential lines, 2 pairs of USB D+/D-, a pair of SBU, 2 CCs, and 4 VBUS and 4 ground wires. In this embodiment, 4 pairs of TX/RX differential lines are used for DP format video signal transmission, and 2 pairs of USB D+/D- lines are used for sensing signal transmission.

In an optional embodiment, the sensing signal input circuit 1221 is an I2C (Inter-Integrated Circuit, bidirectional two-wire synchronous serial bus) interface circuit; the I2C interface circuit has an I2C interface and a signal output port; the The I2C interface is connected with the sensor, and its signal output port is connected with the signal input port of the single-chip microcomputer 121 , and the acquired sensor signal is transmitted to the signal input port of the single-chip microcomputer 121 . The single-chip microcomputer 121 obtains the sensor signal and converts it into a general USB signal, which is output to the intelligent display device through the D- and D+ ports of the TYPEC interface 11 .

In an optional embodiment, the interface signal input circuit 122 further includes a GPIO (General Purpose Input Output, general input/output) interface circuit 1222, and/or a UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) interface Circuit 1223.

The GPIO interface circuit 1222 is used for external connection with other controllers, and receives control signals from other controllers. The GPIO interface circuit 1222 has a GPIO interface and a signal output port; the signal output end of the GPIO interface circuit 1222 is connected to the signal input port of the single-chip microcomputer 121 ; the GPIO interface obtains a signal from an external controller and transmits it to the single-chip computer 121 signal input port. The single chip 121 acquires the external controller signal, converts the external controller signal into a general USB signal, and outputs the signal to the intelligent display device through the D- and D+ ports of the TYPEC interface 11 .

The UART interface circuit 1223 is used to connect with other communication devices and receive communication signals of other communication devices. The UART interface circuit 1223 has a UART interface and a signal output port; the signal output end of the UART interface circuit is connected to the signal input port of the microcontroller; the UART interface obtains an external communication signal and transmits it to the signal input port of the microcontroller . The single chip 121 acquires an external communication signal, converts it into a USB signal, and outputs it to the intelligent display device through the D- and D+ ports of the TYPEC interface 11 .

In an optional embodiment, the video signal conversion circuit 13 converts the received video signal into a DP format video signal, and outputs it through the TYPEC interface 11 . The video signal conversion circuit 13 includes an HDMI (High Definition Multimedia Interface, fully digital video and audio transmission interface) video conversion circuit 131, and/or a DVI (Digital Visual Interface, digital video interface) video conversion circuit 132, and/or VGA ( VideoGraphics Array, an interface for outputting analog signals) video conversion circuit 133.

The HDMI video conversion circuit 131 includes an HDMI signal conversion chip and an HDMI interface; the HDMI signal conversion chip has a video input port and a video output port; the HDMI interface is connected with the video input port of the HDMI signal conversion chip; The video output port of the HDMI signal conversion chip is connected to the TYPEC interface 11 . The HDMI video conversion circuit 131 converts the HDMI video signal into a standard DP format video signal, and transmits it to the intelligent display device through the TX and RX differential signal ports of the TYPEC interface 11. The whole machine of the intelligent display device does not need to set HDMI video signal processing. The module and HDMI interface simplify the structure of the intelligent display device.

The DVI video conversion circuit 132 includes a DVI signal conversion chip and a DVI interface; the DVI signal conversion chip has a video input port and a video output port; the DVI interface is connected with the video input port of the DVI signal conversion chip; the The video output port of the DVI signal conversion chip is connected to the TYPEC interface 11 . The DVI video conversion circuit 132 converts the DVI video signal into a standard DP format video signal, and transmits it to the intelligent display device through the TX and RX differential signal ports of the TYPEC interface 11. The whole machine of the intelligent display device does not need to set DVI video signal processing. The module and DVI interface simplify the structure of the smart device.

The VGA video conversion circuit 133 includes a VGA signal conversion chip and a VGA interface; the VGA signal conversion chip has a video input port and a video output port; the VGA interface is connected with the video input port of the VGA signal conversion chip; the The video output port of the VGA signal conversion chip is connected to the TYPEC interface 11 . The VGA video conversion circuit 133 converts the VGA video signal into a standard DP format video signal, and transmits it to the intelligent display device through the TX and RX differential signal ports of the TYPEC interface 11. The whole machine of the intelligent display device does not need to set VGA video signal processing. The module and VGA interface simplify the structure of the smart device.

In an optional embodiment, the TYPEC interface 11 is a TYPEC male socket or a TYPEC female socket.

When the TYPEC interface 11 is a TYPEC male socket, the TYPEC interface 11 can be directly connected with an intelligent display device with a TYPEC female socket, so as to realize the signal transmission between the function expansion device of the display device and the intelligent display device, which is convenient and fast. When the TYPEC interface 11 is a TYPEC female socket, the TYPEC interface 11 can be directly connected with an intelligent display device with a TYPEC male socket, so as to realize the signal transmission between the function expansion device of the display device and the intelligent display device, which is convenient and fast. In other embodiments, the function expansion device of the display device and the intelligent display device may also be connected through a TYPEC signal conversion data line.

The function expansion device of the display device of the utility model is provided with an interface signal acquisition circuit and a video signal conversion circuit, and is connected to the intelligent display device through a TYPEC interface in a standardized manner. Convert to USB format signal, output to smart display device through TYPEC interface; after video signal conversion circuit receives video signal, convert it into standard DP format video signal, and output to smart display device through TYPEC interface, so as to realize the sensing of smart display device The function expansion of signal acquisition, other interface signal acquisition and video signal acquisition simplifies the overall structure and interface of the intelligent display device, and facilitates the standardized production of the intelligent display device.

Please refer to FIG. 3 , which is a structural block diagram of an intelligent display system according to an embodiment of the present invention.

The present invention also provides an intelligent display system, including the above-mentioned function expansion device 10 of a display device and an intelligent display device 20;

The function expansion device 10 of the display device includes a first TYPEC interface 11, an interface signal acquisition circuit 12 and a video signal conversion circuit 13;

The intelligent display device 20 includes a casing, a display screen 21, a controller 22 and a TYPEC interface 23 of the display device arranged inside the casing; the TYPEC interface 11 of the function extension device 10 of the display device and the intelligent display device 20 The interface signal acquisition circuit 12 includes a single-chip microcomputer 121 and an interface signal input circuit 122; the single-chip microcomputer 121 has a signal input port and a signal output port; the signal output port of the single-chip microcomputer 121 is connected to the first A TYPEC interface 11 is connected; the interface signal input circuit 122 is connected to the signal input port of the single-chip microcomputer 11;

The interface signal input circuit 122 includes a sensing signal input circuit 1221; the sensing signal input circuit 1221 receives the sensing signal and converts the sensing signal into a USB format signal through the first TYPEC interface 11 and the display device The TYPEC interface 23 is transmitted to the controller 22 of the intelligent display device 20; the video signal conversion circuit 13 obtains the video signal, converts the video signal into a DP video signal, and transmits it through the first TYPEC interface 11 and the display device TYPEC interface 23 to the controller 22 of the smart display device 20; the controller 22 receives the DP video signal and outputs it to the display screen 23 for display.

In an optional embodiment, the first TYPEC interface 11 is a TYPEC male socket; the display device TYPEC interface 23 is a TYPEC female socket; the first TYPEC interface 11 is directly connected to the display device TYPEC interface 23; or The function expansion device 10 of the display device is connected with the intelligent display device 20 through a conversion cable to realize signal transmission.

In an optional embodiment, the first TYPEC interface is a TYPEC female socket; the display device TYPEC interface is a TYPEC male socket; the first TYPEC interface is directly connected to the display device TYPEC interface; or through a conversion cable The function expansion device 10 of the display device is connected with the intelligent display device 20 to realize signal transmission.

When the first TYPEC interface and the TYPEC interface of the display device are both TYPEC female sockets or male sockets, the first TYPEC interface and the TYPEC interface of the display device are connected by a TYPEC cable, so as to realize the function expansion device 10 of the display device and the intelligent display device. Signal transmission between devices 20 .

The intelligent display system provided by the embodiment of the present application includes the function expansion device of the display device provided by any embodiment of the present application, therefore, it has corresponding beneficial effects, simplifies the overall structure and interface of the intelligent display device, and facilitates the standardization of the intelligent display device. Production.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention.

Claims (8)

1. The function expansion device of the display equipment is characterized by comprising a TYPEC interface, an interface signal acquisition circuit and a video signal conversion circuit;

the interface signal acquisition circuit comprises a single chip microcomputer and an interface signal input circuit; the single chip microcomputer is provided with a signal input port and a signal output port; the signal output port of the single chip microcomputer is connected with the TYPEC interface; the interface signal input circuit is connected to a signal input port of the singlechip; the interface signal input circuit comprises a sensing signal input circuit; the sensing signal input circuit receives a sensing signal and transmits the sensing signal to the single chip microcomputer; the single chip microcomputer receives a sensing signal, converts the sensing signal into a first format signal supported by the TYPEC interface, and outputs the first format signal through the TYPEC interface;

the video signal conversion circuit comprises a video signal conversion chip and a video input interface; the video signal conversion chip is provided with a signal input port and a signal output port; the signal output port of the video signal conversion chip is connected with the TYPEC interface; the video input interface is connected with a signal input port of the video signal conversion chip and receives a video signal and transmits the video signal to the video signal conversion chip; the video signal conversion chip receives a video signal and converts the video signal into a second format signal supported by the TYPEC interface, and the second format signal is output through the TYPEC interface.

2. The function expanding device of a display apparatus according to claim 1, wherein the first format signal is a USB format signal; the single chip microcomputer receives the sensing signals transmitted by the sensing signal input circuit, converts the sensing signals into signals in a USB format, and outputs the signals through the TYPEC interface.

3. The function expanding apparatus of a display device according to claim 2, wherein the interface signal input circuit further comprises:

the GPIO interface circuit is externally connected with a controller and used for receiving a control signal and transmitting the control signal to the single chip microcomputer; the single chip microcomputer receives the control signal, converts the control signal into a USB format signal supported by the TYPEC interface, and outputs the signal through the TYPEC interface;

the UART interface circuit is externally connected with communication equipment, receives communication signals and transmits the communication signals to the single chip microcomputer; and the single chip microcomputer receives the communication signal and converts the communication signal into a USB format signal supported by the TYPEC interface, and the signal is output through the TYPEC interface.

4. The function expanding device of a display apparatus according to claim 1, wherein the second format signal is a DP format video signal; the video signal conversion circuit receives a video signal, converts the video signal into a DP format video signal, and outputs the DP format video signal through the TYPEC interface.

5. The function expanding device of a display apparatus according to claim 4, wherein the video signal conversion circuit includes one or a combination of two or more of the following video conversion circuits:

HDMI video conversion circuit, DVI video conversion circuit, VGA video conversion circuit.

6. The device of claim 1, wherein the TYPEC interface is a TYPEC male dock or a TYPEC female dock.

7. An intelligent display system, comprising the intelligent display device and the function expansion apparatus of the display device according to any one of claims 1 to 6;

the intelligent display device comprises a shell, a display screen, a control panel and a display device TYPEC interface, wherein the display screen, the control panel and the display device TYPEC interface are arranged in the shell; the display screen is provided with a video signal input port; the control board is provided with a signal input port and a signal output port; the signal output port of the control panel is connected to the video signal input port of the display screen; the display equipment TYPEC interface is connected with the signal input port of the control panel;

the TYPEC interface of the function expansion device of the display equipment is connected with the TYPEC interface of the display equipment;

the control panel receives a USB format signal input by the display equipment TYPEC interface and controls the display screen to execute a control command;

and the control panel receives the DP format video signal input by the TYPEC interface of the display equipment and controls the display screen to display.

8. The smart display system of claim 7 wherein the display device TYPEC interface is a female TYPEC or a male TYPEC receptacle that mates with the TYPEC interface.

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