WO2019237668A1 - Receiving device and wireless screen transmission system - Google Patents

Abstract

Disclosed in the present application are a receiving device and a wireless screen transmission system. The receiving device comprises: a routing module, configured to establish a wireless network and access a to-be-projected terminal to the wireless network; a first interface, configured to be connected to a target device; a main controller, connected to the routing module and the first interface, and configured to receive, by means of the wireless network, to-be-projected screen data sent by said terminal, and transmit said data to the target device by means of the first interface. The present application solves the technical problem in the prior art that some devices do not have a wireless screen transmission function.

Description

Receiving equipment and wireless screen transmission system

This application claims priority from a Chinese patent application filed on June 11, 2018 with the Chinese Patent Office, application number 201820902866.5, and application name "Receiving Equipment and Wireless Screen Transmission System", the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of communications, and in particular, to a receiving device and a wireless screen transmission system.

Background technique

Wireless screen transfer refers to transmitting multimedia content on a portable terminal to other devices through a wireless network. For example, in the case of a home scene, the multimedia content of a mobile phone can be transmitted to a TV with a larger screen through a home LAN, thereby improving viewing The comfort of the video; taking the conference scene as an example, the files of the mobile phone can be transmitted to the large screen of the conference room through the local area network of the conference room, thereby realizing a multi-person conference. For some devices that do not have wireless screen transfer function (for example, display screens without networking function), the wireless screen transfer function cannot be realized.

Aiming at the problem that some devices in the prior art do not have a wireless screen transmission function, no effective solution has been proposed at present.

Application content

The embodiments of the present application provide a receiving device and a wireless screen transmission system, so as to at least solve the technical problem that some devices in the prior art do not have a wireless screen transmission function.

According to an aspect of the embodiment of the present application, a receiving device is provided, including: a routing module configured to establish a wireless network and connecting a terminal to be screened to the wireless network; a first interface configured to connect with a target device; The controller is connected to the routing module and the first interface, and is configured to receive the screen-to-screen data sent by the screen-to-screen terminal through a wireless network, and transmit the screen-to-screen data to the target device through the first interface.

Optionally, the routing module is further configured to access the public network.

Optionally, the main controller establishes communication with the routing module through the first signal, and is configured to obtain routing module information through the first signal, where the routing module information includes: connection status information of the routing module connected to the public network, and / or the routing module Connection parameters.

Optionally, the main controller also establishes communication with the routing module through a second signal, and is configured to exchange data through the second signal, where the data includes: screen data to be cast and / or data obtained from a public network.

Optionally, the routing module works in multiple frequency bands at the same time.

Optionally, the first memory is connected to the first memory and configured to store a program run by the main controller; and the second memory is connected to the second memory and configured to store cache data of the main controller.

Optionally, the device further includes a second interface connected to the main controller and configured to connect to the target device, wherein the target device transmits a touch signal to the receiving device through the second interface, and the receiving device transmits the touch signal to the terminal to be screened The touch signal is used to control the terminal to be screened.

Optionally, the device further includes a third interface, and the main controller is further connected to the third interface, and is configured to communicate with the sound generating device through the third interface.

Optionally, the receiving device further includes: a fourth interface; an interface converter; wherein the main controller is connected to the fourth interface through the interface converter, and is connected to the target device through the fourth interface, and is configured to output the The DP signal is converted to an HDMI signal and output to the target device.

According to another aspect of the embodiments of the present application, a wireless screen transmission system is also provided, including: the receiving device and the intelligent interactive device described above; wherein the intelligent interactive device is connected to the receiving device through the first interface and is configured to receive the to-be-cast Screen data.

Optionally, the smart interactive device includes: a display device configured to display image data in the data to be screened; and a touch frame configured to transmit a touch signal to a receiving device.

Optionally, the system further includes: a sound generating device configured to play audio data in the data to be projected on the screen.

In the embodiment of the present application, a wireless network is established through a routing module, and a terminal to be screened is connected to the wireless network, connected to a target device through a first interface, connected to the routing module and the first interface through a main controller, and set to pass through The wireless network receives the screen-to-screen data sent by the screen-to-screen terminal, and transmits the data to the target device through the first interface. When the receiving device is connected to other devices, it is possible to project the screen data of the terminal to be screened to other devices connected to the receiving device. For devices that do not have the function of wireless screen projection, there is no need to modify the internal structure, only It needs to be connected to the receiving device to have the function of wireless screen projection, which solves the technical problem that some devices in the prior art do not have the function of wireless screen transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a schematic diagram of a receiving device according to an embodiment of the present application; FIG.

2 is a schematic diagram of an optional receiving device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a wireless screen transmission method according to the present application; and

FIG. 4 is a schematic diagram of an optional wireless screen transmission system according to an embodiment of the present application.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are merely Examples are part of this application, but not all examples. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts should fall within the protection scope of this application.

It should be noted that the terms “first” and “second” in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a system, product, or device that includes a series of units need not be limited to those units that are explicitly listed, but may be Includes other units not explicitly listed or inherent to these products or equipment.

Example 1

According to an embodiment of the present application, an embodiment of a receiving device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions, and although The logical order is shown in the flowchart, but in some cases, the steps shown or described may be performed in a different order than here.

FIG. 1 is a schematic diagram of a receiving device according to an embodiment of the present application. As shown in FIG. 1, the device includes:

The routing module 10 is configured to establish a wireless network and connect the terminal to be screened to the wireless network.

Optionally, the above wireless network may be a local area network, and the terminal to be screened may be a PC, a smart phone, a tablet computer, and the like. The terminal to be screened may store data to be screened, and set to a wireless network formed by a routing module. The resources to be screened are sent to the target device.

The first interface 20 is configured to be connected to a target device.

Optionally, the target device is a device that displays data to be screened, which may be a device, such as a display, a smart interactive tablet, etc., or a combination of multiple devices, such as a display and an amplifier.

The first interface may be an HDMI interface or a DP interface. When the first interface is connected to the target device, it may be a pluggable connection, that is, when the content to be played by the screen-to-screen terminal needs to be screened to the target device, The receiving device provided in the embodiment is inserted into the target device through the first interface, so that the receiving device can be connected with the target device.

The main controller 30 is connected to the routing module and the first interface, and is configured to receive the screen-to-screen data sent by the screen-to-screen terminal through a wireless network, and transmit the screen-to-screen data to the target device through the first interface.

Optionally, the main controller may be a main control IC. The main control IC is connected to the routing module and configured to access the wireless network provided by the routing module. The main controller is also connected to the first interface and configured to communicate with the first interface through the first interface. Target device communication.

In an optional embodiment, taking the first interface as the HDMI interface as an example, the terminal to be screened can be a PC, and the target device can be a smart interactive tablet. The receiving device provided in this application is inserted into the HDMI of the smart interactive tablet. Interface, the intelligent interactive tablet accesses the local area network provided by the routing module, and has a corresponding IP address.

The user operates the PC, controls the PC to screen the currently playing content, and selects the IP address of the smart interactive tablet. The receiving device receives the resources provided by the PC through a wireless signal, and outputs the resources to the smart interactive tablet through HDMI. , Completed the wireless projection from the PC to the smart interactive device.

As can be seen from the above, the above-mentioned embodiment of the present application establishes a wireless network through a routing module, and connects the terminal to be screened to the wireless network, connects to the target device through the first interface, and connects to the routing module and the first interface through the main controller. In order to receive the screen-to-screen data sent by the screen-to-screen terminal through a wireless network, and transmit the data to the target device through the first interface. When the receiving device is connected to other devices, the screen data of the terminal to be screened can be screened to other devices connected to the receiving device. For devices that do not have the function of wireless screen projection, there is no need to modify the internal structure. Only by connecting with the receiving device, the function of wireless screen projection can be realized, and the technical problem that some devices in the prior art do not have the function of wireless screen transmission is solved.

Optionally, according to the foregoing embodiment of the present application, the routing module is further configured to access a public network.

Optionally, in the case of a public network environment, the routing module is further configured to communicate with an external public network through a wired manner.

After the routing module is connected to the external public network, both the terminal to be put into the routing module and the target device can access the resources of the public network.

FIG. 2 is a schematic diagram of an optional receiving device according to an embodiment of the present application. In an optional embodiment, in combination with FIG. 2, a routing module can access a public network.

Optionally, according to the foregoing embodiment of the present application, the main controller establishes communication with the routing module through a first signal, and is configured to obtain routing module information through the first signal, where the routing module information includes: a connection status of the routing module to the public network Information, and / or connection parameters of the routing module.

Optionally, as shown in FIG. 2, the first signal may be I2C (Inter-Integrated Circuit). The connection status information of the routing module 10 connected to the public network may include information such as connected, unconnected, and current connection speed. The connection parameters of the network may include the SSID (Service Set Identifier) of the routing module and the corresponding key.

Optionally, according to the foregoing embodiment of the present application, the main controller further establishes communication with the routing module through a second signal, and is configured to exchange data through the second signal, where the data includes: screen data to be cast and / or obtained from a public network The data.

Optionally, as shown in FIG. 2, the second signal may be an RMI (Remote Method Invocation, remote method invocation) signal. The data to be screened is provided by the terminal to be screened, and the data obtained from the public network is external network data. Data, which can be obtained only when the routing module is connected to the external network.

Optionally, according to the foregoing embodiment of the present application, the routing module works in multiple frequency bands simultaneously.

Optionally, the routing module in the present application can work in the frequency bands of 2.4GHz and 5GHz at the same time.

Optionally, according to the foregoing embodiment of the present application, the device includes: a first memory, the main controller is connected to the first memory, and is configured to store a program run by the main controller; and a second memory, the main controller is connected to the second memory , Set to store the cache data of the main controller.

Optionally, as shown in FIG. 2, the first memory may be an EMMC (Embedded MultiMediaCard), and the second memory may be a DDR (Double DataRate). .

Optionally, according to the foregoing embodiment of the present application, the device further includes: a second interface connected to the main controller, configured to connect to the target device, wherein the target device transmits a touch signal to the receiving device through the second interface, and the receiving device sends The touch signal is transmitted to the terminal to be screened, and the touch signal is used to control the terminal to be screened.

Optionally, as shown in FIG. 2, the second interface may be a USB interface. The receiving device provided in this application receives the touch data output by the target device through the USB interface, and sends the touch data to the wireless module through the wireless module provided by the routing module. Projection terminal, thereby achieving reverse control of the terminal to be screened.

Further, when the USB interface is not connected to the target device, a device such as a USB flash drive can also be connected for program upgrade in the main controller.

In an optional embodiment, the receiving device is connected to the smart interactive tablet through HDMI, and the USB interface of the receiving device is connected to the touch frame of the smart interactive tablet. The routing module in the receiving device establishes a wireless network, and the PC accesses the wireless network through the wireless network. The PC plays the PPT file and projects the PPT file on the smart interactive tablet. The user operates and displays the PPT file on the smart interactive tablet. When the user needs to annotate the PPT file, he directly touches the PPT file on the smart interactive tablet. , The touch data is returned to the PC through the USB interface, thereby annotating the PPT file on the PC side.

Optionally, according to the foregoing embodiment of the present application, the device further includes a third interface, and the main controller is further connected to the third interface, and is configured to communicate with the sound emitting device through the third interface.

Optionally, as shown in FIG. 2, the third interface may be an audio interface, and the sound generating device may be a separate power amplifier or a sound generating device integrated on other target devices. In the above solution, the multimedia file with sound is transmitted to the target device through the audio interface.

Optionally, according to the foregoing embodiment of the present application, the receiving device further includes: a fourth interface; an interface converter; wherein the main controller is connected to the fourth interface through the interface converter, and connected to the target device through the fourth interface, and sets To convert the DP signal output from the main controller to the HDMI signal and output it to the target device.

Optionally, as shown in FIG. 2, the fourth interface may be an HDMI interface, and the interface converter may be a DP to HDMI (DP to HDMI) converter. In an optional optional embodiment, the terminal to be projected sends the screen projection data in the form of a DP signal. Therefore, the output DP signal needs to be converted into an HDMI signal and output to the target device, so that the target device displays.

In this solution, the receiving device has two HDMI signal outputs (the first interface and the fourth interface), which can output two pictures at the same time. The two pictures can be the same picture from the same screen terminal, or they can be Different pictures from different terminals to be screened.

FIG. 3 is a schematic diagram of a wireless screen transmission method according to the present application. In combination with FIG. 3, the wireless screen transmission receiver may be the foregoing receiving device. The wireless screen receiver is powered on and the main control IC configures the SSID and key of the routing module through I2C. Other devices can join the network constructed by the routing module through the SSID and key. After the PC is connected to the routing module through the SSID, which is the key, the real-time displayed screen is sent to the main control IC through the wireless network. The main control IC decodes the received image data and decodes the decoded image data from the HDMI / DP interface. Output, where the data output from the DP interface is output to the target device through a DP to HDMI converter.

Example 2

According to an embodiment of the present application, an embodiment of a wireless screen transmission system is provided. The system includes: any one of the receiving device and the intelligent interactive device in Embodiment 1, wherein the intelligent interactive device is connected to the receiving device through a first interface. Set to receive screen data.

Optionally, the above-mentioned intelligent interactive device may be connected to the receiving device through the HDMI interface, or may be connected to the intelligent interactive device through the HDMI interface and the audio interface, and is set to release the audio data at the same time as the image data.

Optionally, according to the foregoing embodiment of the present application, the intelligent interactive device includes: a display device configured to display image data among screen data to be projected; and a touch frame configured to transmit a touch signal to a receiving device.

Optionally, the touch frame of the smart interactive device is connected to the USB of the receiving device through a USB interface, and is configured to transmit the touch signal to the receiving device, and the receiving device to the terminal to be screened.

Optionally, according to the foregoing embodiment of the present application, the above-mentioned system further includes: a sound generating device configured to play audio data in the data to be projected on the screen.

Optionally, the sound generating device is connected to the receiving device through an audio interface.

FIG. 4 is a schematic diagram of an optional wireless screen transmitting system according to an embodiment of the present application. In conjunction with FIG. 4, the receiving device in this embodiment is a wireless screen transmitting receiver. Network communication and connection to the public network. When the user connects the HDMI interface of the wireless screen receiver with the intelligent interactive platform, the screen projection data of the PC can be placed on the intelligent interactive tablet. At the same time, the wireless screen receiver can also include another HDMI interface, which can be connected to other devices, such as monitors, etc. The display and the smart interactive tablet can display the same content screened by a PC, or can be displayed by multiple PCs. Different content of PC screen.

Optionally, if it is necessary to use a smart interactive tablet to perform reverse control of the PC, the USB interface of the touch frame of the smart interactive tablet can be connected to the USB interface of the wireless screen receiver. If the projection data includes audio, you can Connect the audio interface of the wireless screen receiver to the amplifier.

The above-mentioned serial numbers of the embodiments of the present application are merely for description, and do not represent the superiority or inferiority of the embodiments.

In the above embodiments of the present application, the description of each embodiment has its own emphasis. For a part that is not described in detail in an embodiment, reference may be made to related descriptions in other embodiments.

The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present application, several improvements and retouches can be made. These improvements and retouches also It should be regarded as the scope of protection of this application.

Industrial applicability

As described above, the receiving device and the wireless screen transmission system provided in at least part of the embodiments of the present application have the following beneficial effects: establishing a wireless network through a routing module, connecting the terminal to be screened to the wireless network, and connecting to the target device through the first interface The main controller is connected to the routing module and the first interface, and is configured to receive the screen-to-screen data sent by the screen-to-screen terminal through a wireless network, and transmit the data to the target device through the first interface. When the receiving device is connected to other devices, it is possible to project the screen data of the terminal to be screened to other devices connected to the receiving device. For devices that do not have the function of wireless screen projection, there is no need to modify the internal structure, only It needs to be connected to the receiving device to have the function of wireless screen projection, which solves the technical problem that some devices in the prior art do not have the function of wireless screen transmission.

Claims (15)

A receiving device includes: A routing module configured to establish a wireless network and connect a terminal to be screened to the wireless network; A first interface configured to be connected to a target device; The main controller is connected to the routing module and the first interface, and is configured to receive the screen-to-screen data sent by the screen-to-screen terminal through the wireless network, and pass the screen-to-screen data through the first An interface is transmitted to the target device. The device according to claim 1, wherein the routing module is further configured to access a public network. The device according to claim 2, wherein the main controller establishes communication with the routing module through a first signal, and is configured to obtain routing module information through the first signal, wherein the routing module information includes: Connection information of the routing module to the public network, and / or connection parameters of the routing module. The device according to claim 2, wherein the main controller further establishes communication with the routing module through a second signal and is configured to exchange data through the second signal, wherein the data includes: Screen data and / or data obtained from the public network. The device according to any one of claims 1 to 4, wherein the routing module simultaneously operates in multiple frequency bands. The device of claim 1, wherein the device comprises: A first memory, where the main controller is connected to the first memory and is configured to store a program run by the main controller; A second memory, the main controller is connected to the second memory and is configured to store cache data of the main controller. The device according to claim 1, wherein the device further comprises: A second interface connected to the main controller is configured to connect to the target device, wherein the target device transmits a touch signal to the receiving device through the second interface, and the receiving device transmits the touch signal The touch signal is used to control the terminal to be screened. The device according to claim 1, wherein the device further comprises: A third interface, the main controller is also connected to the third interface, and is configured to communicate with the sound generating device through the third interface. The device according to claim 1, wherein the receiving device further comprises: Fourth interface Interface converter The main controller is connected to the fourth interface through the interface converter, and is connected to the target device through the fourth interface, and is configured to convert the DP signal output by the main controller to HDMI The signal is output to the target device. A wireless screen transmission system includes: The receiving device according to any one of claims 1 to 9; Intelligent interactive equipment The smart interactive device is connected to the receiving device through the first interface and is configured to receive the screen-to-screen data. The system of claim 10, wherein the intelligent interactive device comprises: A display device configured to display image data in the data to be projected on the screen; The touch frame is configured to transmit a touch signal to the receiving device. The system of claim 11, wherein the system further comprises: The sound generating device is configured to play audio data in the data to be projected on the screen. The device according to claim 1, wherein the target device is a device displaying the screen-to-screen data. The device according to claim 1, wherein the first interface is an HDMI interface. The device according to claim 1, wherein the first interface is a DP interface.

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