Display screen multiplexing method and computer readable storage medium

Abstract

The invention discloses a display screen multiplexing method and a computer readable storage medium, and the method comprises the steps: receiving externally input display information, and converting the display information, including information coding and protocol conversion and equipment type conversion; and projecting the converted display information to a display screen. According to the invention, a display screen originally exclusively occupied by equipment can be converted into a universal display, so that screen multiplexing is realized.

Description

Technical Field

[0001] The present invention relates to the field of display control technology, and in particular to a display screen multiplexing method and a computer-readable storage medium. Background Art

[0002] As the main carrier for presenting information, display screens play an important role in various service scenarios.

[0003] Displays are generally driven only by the default host, especially screens integrated into products that are not universal displays. Other devices cannot project content onto these screens. As services become more complex, when the hardware resources or software solutions of the host driving the display fail to meet business development needs, a new host must be configured. This newly configured host cannot directly drive the original display and must instead be configured with a new one. This results in information being displayed on different displays at different business stages, increasing the complexity of user interaction, reducing the user experience, and increasing hardware costs.

[0004] For example, in a bank teller scenario, the screen of a dedicated peripheral device used for user information interaction (such as an off-till clearing machine) can only be driven by the peripheral's internal CPU. When new content needs to be displayed on this screen, the corresponding file must be re-created according to the original agreement and pushed to the dedicated peripheral device using the agreed-upon interaction method. The dedicated peripheral device then displays the screen. If new business needs require displaying the bank teller's computer screen to the user, this can only be met by rotating the screen or adding a new screen. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a display screen multiplexing method and a computer-readable storage medium, which can convert a display screen originally exclusively used by a device into a universal display, thereby realizing screen multiplexing.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a display screen multiplexing method, comprising: Receive external input display information and convert the display information, the conversion including information encoding and protocol conversion and device type conversion; The converted display information is projected onto a display screen.

[0007] The present invention further provides a computer-readable storage medium having a computer program stored thereon, which implements the above-mentioned method when the program is executed by a processor.

[0008] The beneficial effects of the present invention are: by converting external display information into a video stream that complies with relevant specifications, the device type is a camera device, and projecting it onto a display screen, thereby enabling the display of external display information on the device screen. The present invention can transform a display screen that originally belonged exclusively to the device into a universal display according to business scenario needs, realize the display content display of the external host, and realize screen reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a flow chart of a display screen multiplexing method according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the architecture of the first embodiment of the present invention. DETAILED DESCRIPTION

[0010] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0011] Please refer to Figure 1 , a display screen multiplexing method, comprising: Receive external input display information and convert the display information, the conversion including information encoding and protocol conversion and device type conversion; The converted display information is projected onto a display screen.

[0012] From the above description, it can be seen that the beneficial effect of the present invention is that it can transform the display screen originally exclusive to the device into a universal display according to the business scenario needs, realize the display content display of the external host, and realize screen reuse.

[0013] Furthermore, the receiving of externally input display information and converting the display information includes: The processor receives display information input from the outside and parses the display information to obtain display data according to a protocol corresponding to the display information; The display data is repackaged according to the device and interface definition of the Camera framework.

[0014] From the above description, it can be seen that the processor obtains the correct resolution display information input according to the interface protocol handshake and implements the Camera framework adaptation.

[0015] Furthermore, the receiving of externally input display information and converting the display information includes: The video acquisition chip receives external input display information, converts the display information into video stream data of a preset protocol, and sends the video stream data to the processor; The processor receives the video stream data and identifies the video acquisition chip as a camera device.

[0016] Furthermore, the preset protocol is UVC; the video acquisition chip is connected to the processor via a USB interface.

[0017] As can be seen from the above description, the conversion is achieved by the video capture chip, which is connected to the processor on the device in a new communication mode and is recognized by the system as the converted device type.

[0018] Furthermore, projecting the converted display information onto a display screen includes: When a display mode switching request is received, the converted display information is previewed on top of the display screen.

[0019] From the above description, it can be seen that after the external display information is displayed on top, from the user's perspective, the display screen of the dedicated device becomes an external display of the external host, thereby realizing the display of external input on the device screen and converting the dedicated device display screen into a general display.

[0020] Furthermore, after projecting the converted display information onto the display screen, the method further includes: When you want to display local content, close the top preview screen.

[0021] As can be seen from the above description, by closing the top display screen, the display of external display information can be turned off and the display content of the dedicated device itself can be displayed.

[0022] Furthermore, before projecting the converted display information onto the display screen, the method further includes: Add a preset watermark and / or timestamp to the converted display information based on business scenario requirements.

[0023] As can be seen from the above description, the external display information can be processed twice before being displayed.

[0024] The present invention further provides a computer-readable storage medium having a computer program stored thereon, which implements the above-mentioned method when the program is executed by a processor.

[0025] Example 1 Please refer to Figure 1-2 , Embodiment 1 of the present invention is: a display screen multiplexing method, which can be applied to dedicated equipment, whose screens are driven by the CPU in the equipment and cannot directly display the content of other hosts.

[0026] like Figure 1 As shown, the following steps are included: S1: receiving external input display information and converting the display information.

[0027] like Figure 2 As shown, in this embodiment, a receiving and conversion module is added to the dedicated device to receive and convert external display information. The external display information is output by an external host, typically through an interface such as HDMI, DP, or VGA. The conversion is divided into information encoding, protocol conversion, and device type conversion. The received display information is converted into a video stream that complies with the UVC (USB Video Class) specification. The device type is a camera device.

[0028] In one embodiment, external display information is directly input to the device processor, and software running on the processor converts the information to the device type. Specifically, the HDMI interface of the external host is directly connected to the HDMI RX interface of the dedicated device processor. The processor uses the interface protocol handshake to obtain the correct resolution display information input and implements the Camera framework adaptation. This means parsing the information data based on the protocol structure of the input data and then repackaging the data according to the device and interface definitions of the Camera framework.

[0029] In another embodiment, external display information is input into a video capture chip (such as the MS2109), which converts it and connects it to the device's processor via a new communication method. The system then identifies the device as the converted device type. Specifically, the HDMI interface of an external host is connected to the video capture chip, which receives the external display information, converts it into a video stream that complies with the UVC specification, and then connects it to the processor via a USB interface. The processor then identifies the video capture chip as a camera device.

[0030] S2: Projecting the converted display information onto a display screen.

[0031] The processor can pin the preview of the converted external display information according to the needs of the business scenario or the display mode switching request initiated by the business host computer. After pinning, it covers the display content of the original application of the dedicated device. From the user's perspective, the display screen of the dedicated device becomes an external display of the external host, thereby realizing the display of external input on the device screen and converting the dedicated device display screen into a general display.

[0032] If you want to switch from the general display mode to the dedicated device mode, that is, if you want to display the display content of the dedicated device itself, you only need to turn off the top preview.

[0033] Furthermore, external display information can be processed secondary before display according to business scenario requirements, such as adding watermarks, timestamps and other information.

[0034] Furthermore, the position and size of the preview screen can be adjusted according to business scenario requirements to form different display combinations with the dedicated device's own display content, thereby achieving a richer combination of business effects.

[0035] This embodiment transforms the previously exclusive display screen of a device into a universal display based on business scenarios, enabling content display on external hosts and enabling screen reuse. Simultaneously, minimal changes are made to the device hardware, eliminating the need for hardware or software modifications to external hosts, reducing overall hardware costs for business scenarios and improving user experience. At the application level, the camera device is highly versatile, making implementation simple. This embodiment is widely applicable to various existing hardware and software platform combinations.

[0036] Example 2 This embodiment is a computer-readable storage medium corresponding to the above embodiment, on which a computer program is stored. When the program is executed by the processor, the various steps of a display screen multiplexing method in the above embodiment are implemented, and the same technical effect can be achieved, which will not be repeated here.

[0037] In summary, the present invention provides a display screen reuse method and computer-readable storage medium. By converting external display information into a video stream that complies with relevant specifications, the device type is a camera device, and projecting it onto a display screen, the external display information can be displayed on the device screen. This invention can transform a display screen that was originally exclusive to a device into a universal display based on business scenarios, enabling the display of content from an external host and achieving screen reuse.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A display screen multiplexing method, characterized in that: include: Receive external input display information and convert the display information, the conversion including information encoding and protocol conversion and device type conversion; The converted display information is projected onto a display screen.

2. The display screen multiplexing method according to claim 1, wherein: The receiving of externally input display information and converting the display information includes: The processor receives display information input from the outside and parses the display information to obtain display data according to a protocol corresponding to the display information; The display data is repackaged according to the device and interface definition of the Camera framework.

3. The display screen multiplexing method according to claim 1, wherein: The receiving of externally input display information and converting the display information includes: The video acquisition chip receives external input display information, converts the display information into video stream data of a preset protocol, and sends the video stream data to the processor; The processor receives the video stream data and identifies the video acquisition chip as a camera device.

4. The display screen multiplexing method according to claim 3, wherein: The preset protocol is UVC; the video acquisition chip is connected to the processor via a USB interface.

5. The display screen multiplexing method according to claim 1, wherein: Projecting the converted display information onto the display screen includes: When a display mode switching request is received, the converted display information is previewed on top of the display screen.

6. The display screen multiplexing method according to claim 5, characterized in that: After projecting the converted display information onto the display screen, the method further includes: When you want to display local content, close the top preview screen.

7. The display screen multiplexing method according to claim 1, wherein: Before projecting the converted display information onto the display screen, the method further includes: Add a preset watermark and / or timestamp to the converted display information based on business scenario requirements.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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