CN106303677A - Wireless display control system and wireless display control method - Google Patents

Abstract

In Wireless Display control system disclosed by the invention, Wireless Display control system can be operated in first mode and the second pattern.Source equipment sets up wireless connections with receiving device.Under first mode and the second pattern, the video-audio data of source equipment is sent to receive device by source equipment.Receive device receive the video-audio data of source equipment and video-audio data is sent to display device.Display device is according to video-audio data display image and plays sound.Under the second mode, receive device and receive the control signal of user's input, and send control signals to source equipment.Source equipment carries out corresponding operating according to control signal.Under second pattern of above-mentioned Wireless Display control system, receiving device be able to receive that and send user control signal to this source equipment, source equipment carries out corresponding operating according to control signal, and this makes receiving device and source equipment be capable of two-way interaction.The invention still further relates to a kind of Wireless Display control method.

Description

Wireless display control system and wireless display control method

technical field

The present invention relates to the field of wireless display, and more specifically, to a wireless display control system and a wireless display control method.

Background technique

With the widespread use of portable smart devices, such as smart phones, tablet computers, etc., people use these devices to take and save photos and videos. However, limited by the size of the devices, the screens of these devices are generally relatively small (for example, the screens of smartphones are generally 4-5.5 inches, and the screens of tablet computers are generally 7-10 inches), which is not conducive to the sharing of photos and videos .

In order to solve the above problems, wireless display technology was proposed, which allows a device as the source (hereinafter referred to as the source device) to establish a wireless connection with another device as the receiving end (hereinafter referred to as the receiving device), and then the source The screen image of the end device can be displayed on the screen of the receiving end device. The receiver device may be a device with a larger screen such as a TV or a projector.

However, the existing sink device can only passively receive the screen image of the source device, and the interaction between the sink device and the source device is not fully utilized.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide a wireless display control system and a wireless display control method.

A wireless display control system includes a source device and a receiving device, the receiving device includes a display device and a receiving device, and the receiving device is set on the display device. The wireless display control system can work in the first mode and the second mode. The source device is used to establish a wireless connection with the receiving device. In the first mode and the second mode, the source device is used to send the video and audio data of the source device to the receiving device. The receiving device is used for receiving the audio-visual data of the source device and sending the audio-video data to the display device. The display device is used for displaying images and playing sounds according to the video and audio data. In the second mode, the receiving device is used for receiving a control signal input by a user, and sending the control signal to the source device. The source device is used to perform corresponding operations according to the control signal.

In the above wireless display control system, in the first mode, the receiver device can display images and play sounds according to the video and audio data sent by the source device; in the second mode, the receiver device can receive and send user control signals to The source device, the source device performs corresponding operations according to the control signal, which enables the receiving device and the source device to realize two-way interaction, and increases the convenience of the wireless display control system.

In one embodiment, the display device includes a connection interface, the receiving device includes a connection plug, and the connection plug is plugged into the connection interface.

In one embodiment, the display device includes a first power interface, the receiving device includes a second power interface, and the second power interface is connected to the first power interface through a power cable.

In one embodiment, the wireless display control system includes an input device, and the receiving device includes an input interface, the input device is connected to the input interface and is used for receiving the control signal input by a user and sending the control signal to the receiving device.

In one embodiment, the wireless display control system includes an input device, the receiving device includes a first wireless transmission module, and the input device includes a second wireless transmission module. The input device is used for receiving the control signal input by the user and sending the control signal to the first wireless transmission module through the second wireless transmission module. The first wireless transmission block is used to receive the control signal.

In one embodiment, in the second mode, the user interface of the source device for controlling the source device is transformed into a virtual touchpad.

A wireless display control method, comprising the following steps:

S1: The source device establishes a wireless connection with the receiving device of the sink device, and enters step S2 in the first mode and the second mode;

S2: The source device sends the video and audio data of the source device to the receiving device, and then enters step S3;

S3: the receiving device receives the audio-visual data of the source device and sends the audio-visual data to the display device of the receiving device, and then enters step S4;

S4: the display device displays images and plays sounds according to the audio-visual data;

In the second mode, after step S4, the wireless display control method includes the following steps:

S5: the receiving device receives the control signal input by the user, and sends the control signal to the source device, and then enters step S6;

S6: The source device performs a corresponding operation according to the control signal.

In one embodiment, step S5 includes: the input device receives the control signal input by the user and sends the control signal to the receiving device.

In one embodiment, in step S5, the input device sends the control signal to the receiving device through wired or wireless means.

In one embodiment, step S6 includes: the source device controls the user interface of the source device to transform into a virtual touchpad.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 is a schematic structural diagram of a wireless display control system in a preferred embodiment of the present invention;

2 is a schematic flowchart of a wireless display control method in a preferred embodiment of the present invention;

Fig. 3 is another schematic flow chart of the wireless display control method according to the preferred embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or indirectly connected through an intermediary, may be internal communication between two components or interaction between two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and configurations of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Please refer to FIG. 1 , a wireless display control system 100 according to a preferred embodiment of the present invention includes a source device 102 and a sink device 104 . It should be noted that, in this embodiment, the wireless display control system 100 is a wireless display control system based on the Intel Merrifield platform, and uses Miracast technology for wireless display.

The wireless display control system 100 can work in a first mode and a second mode. In this embodiment, the first mode can be understood as a same-screen mode. In this same-screen mode, images and sounds of the source device 102 can be displayed and played on the sink device 104 . The second mode can be understood as an interactive mode. In this interactive mode, on the one hand, the image and sound of the source device 102 can be displayed and played on the receiver device 104; The source device 102 operates.

Miracast technology refers to a technology that transmits content from the source (source) to the sink (sink) via WiFi for synchronous display. Miracast technology was proposed by the WiFi Alliance, based on existing WiFi technology, including wireless transmission technology 802.11n (compatible with other future transmission specifications such as 802.11ac), point-to-point connection technology Wi-Fi Direct and TDLS (Tunneled DirectLink Setup), security WPA2 (Wi-Fi Protected Access 2) encryption, WMM (Wi-Fi Multimedia) technology for quality of service (QoS) and traffic management, WMM Power Save technology for power saving related mechanisms, and WPS ( Wi-Fi Protected Setup) technology.

The source device (source) 102 is a device supporting the Miracast technology, such as a smart phone, a tablet computer or a notebook computer supporting the Miracast technology. A smartphone has an independent operating system capable of running applications independently. The source device 102 has a built-in Miracast transmission/reception means. For example, on the one hand, the interface menu of the source device 102 includes a "wireless display mode" interface for entering the same screen mode. When the source device 102 enters the "wireless display mode" interface Afterwards, the source device 102 enters the same-screen mode, searches and connects to the receiving device 104, and the source device 102 sends the video and audio data to the receiving device 104; on the other hand, the source device 102 is installed with an application program that enters the interactive mode, For example, the Connect Application (TX) application program (hereinafter referred to as the source application program) installed on the source device 102, when the source application program is opened and successfully connected with the receiver device 104, the content of the source device 102 will be In the menu of the user interface transmitted to the receiving end device 104 , the user can operate the source end device 102 on the receiving end device 104 .

The operation of the source device 102 by the user through the receiving device 104 is based on adding user input feedback on the TCP (Transmission Control Protocol, Transmission Control Protocol) layer after the receiving device 104 establishes a wireless network connection with the source device 102. To the channel (UIBC/User Input Back Channel, UIBC), the sink device 104 can reversely control the source device 102 through the RTSP (Real Time Streaming Protocol, Real Time Streaming Protocol) protocol of TCP. When using RTSP, both the client and the server can make requests, that is, RTSP can be bidirectional. RTSP is a multimedia streaming protocol used to control audio or video, and allows multiple streaming requirements to be controlled at the same time. You can choose to use TCP or UDP (User Datagram Protocol, User Datagram Protocol) to transmit streaming content.

In this embodiment, the receiving device 104 includes a display device 106 (display device) and a receiving device 108 (sink), and the receiving device 108 is disposed on the display device 106 .

Specifically, the display device 106 may be a display device such as a liquid crystal display device, an OLED display device, or a plasma display device. The display device 106 includes a connection interface 110 and a first power interface 112 . The connection interface 110 and the first power interface 112 can be arranged on the side of the display device 106 to facilitate the use of the user.

The connection interface 110 is an interface for video and audio input, such as an HDMI interface (High Definition Multimedia Interface, high-definition multimedia interface).

The first power interface 112 is an interface for providing power to the receiving device 108 , such as a USB (Universal Serial Bus, Universal Serial Bus) interface. The first power interface 112 can provide the receiving device 108 with a working voltage, such as a voltage of 5V.

In this embodiment, the receiving device 108 is a device supporting Miracast technology, which includes a connection plug 114 and a second power interface 116 , and the connection plug 114 is plugged into the connection interface 110 . If the connection interface 110 is an HDMI interface, correspondingly, the connection plug 114 is an HDMI plug. The receiving device 108 can also run an application program paired with a device supporting Miracast technology, such as a Connect Application (RX) application program (hereinafter referred to as a receiving end application program) installed on the receiving device.

The second power interface 116 is connected to the first power interface 112 through a power cable 118 . In one example, the first power interface 112 is a USB interface, the second power interface 116 is a Micro USB interface, one end of the power cord 118 is a USB plug, and the other end of the power cord 118 is a Micro USB plug.

The source device 102 is configured to establish a wireless connection with the sink device 108 . For example, when the source device 102 needs to establish a wireless connection with the sink device 108 based on Miracast technology, the source device 102 can establish a wireless connection with the sink device 108 in the first mode through the "wireless display mode" interface. The source device 102 can run a source application to establish a wireless connection with the sink device 108 in the second mode.

The receiving device 108 is used for establishing a wireless connection with the source device 102 , receiving video and audio data from the source device 102 and sending the video and video data to the display device 106 . For example, after the connection plug 114 of the receiving device 108 is plugged into the connection interface 110 of the display device 106, and the second power interface 116 is connected to the first power interface 112, the receiving device 108 is powered on and powered on to run the receiving end application program, Wait for the source device 102 to search and connect.

The display device 106 is used for displaying images and playing sounds according to the video and audio data. Therefore, the content (including video and audio) of the source device 102 can be displayed and played on the display device 106 .

Further, in the second mode, the receiving means 108 is configured to receive a control signal input by the user, and send the control signal to the source device 102 . In this embodiment, the receiving device 108 is also provided with an input interface 120, and the wireless display control system 100 includes an input device 122. The input device 122 is connected to the input interface 120 and used to receive a control signal input by the user and send the control signal to the receiving device. device 108 . For example, the input interface 120 is a USB3.0 interface, and its transmission rate is relatively fast. The input device 122 includes a keyboard 124 and a mouse 126 , and the keyboard 124 and the mouse can be connected to the input interface 120 through a USB hub.

In other embodiments, the receiving device 108 includes a first wireless transmission module, the input device 122 includes a second wireless transmission module, and the input device 122 is used to receive a control signal input by the user and pass the control signal through the second wireless transmission module. The transmission module sends to the first wireless transmission module, and the first wireless transmission block is used to receive the control signal. For example, the first transmission module and the second transmission module are bluetooth modules (blue module, BT), the input device 122 includes a wireless keyboard and a wireless mouse, after the first transmission module is paired with the second transmission module, the user can input control signals through the input device.

In another embodiment, the receiving device 108 includes an input interface and a first wireless transmission module. Therefore, the receiving device 108 can be used as an input device with wired input and wireless input, so that the application range of the receiving device is wider.

The source device 102 is configured to perform corresponding operations according to the control signal. For example, the control signal is a control signal to enable or disable a certain application program of the source device 102 .

Further, in the second mode (interactive mode), the source device 102 is used to control the user interface of the source device 102 into a virtual touchpad, so that when the content of the source device 102 is displayed on the display device 106 At this time, the source device 102 can be used as a remote control for operating the interface of the source device 102, so that the user can control the application program of the source device 102 through the display device 106 and the virtual touch panel.

The operation principle of the wireless display control system 100 of this embodiment is illustrated below with an example.

In the first mode (same screen mode):

1. Insert the receiving device 108 (sink) into the HDMI interface 110 of the display device 106, and the video and audio data of the receiving device 108 can be transmitted to the display device 106 through the HDMI interface 110;

2. Connect the Micro USB interface 116 of the receiving device 108 to the USB interface 112 of the display device 106, and the receiving device 108 will start up after power-on;

3. After the receiving device 108 is powered on, enter the internal operating system (OS) of the receiving device 108, the operating system opens WiFi and Bluetooth by default, runs the receiving end application program Connect Application (RX), and waits for the search connection of the source end device 102;

4. Start the source device 102, enter the "wireless display mode" interface of the source device 102, the source device 102 searches for the connection receiving device 108, after the wireless connection is successfully established, the content of the source device 102 can be transmitted to the receiving device via WiFi device 108, therefore, the content of the source device 102 is displayed on the display device 106 on the same screen.

Specifically, the source device 102 that supports Miracast technology has a service search function, and uses WiFi Direct technology to find nearby sink devices 104. Users can directly find new devices or select the sink they want to connect to from previously connected devices. equipment. According to the Wi-Fi Direct technical specification, the connection between the source device 102 and the sink device 108 is established through Wi-Fi P2P, and this step includes establishing a group owner (Group Owner) and a client (Client). Thereafter, the source device 102 and the sink device 108 will establish a TCP connection, and at the same time, a port for the RTSP protocol will be created for subsequent session (Session) management and control work.

Before formally transmitting video and audio data, the source device 102 and the receiving device 108 need to communicate and exchange some parameter information, including video and audio formats supported by both parties, so as to select a suitable video and audio transmission format.

The source device 102 and the sink device 108 will establish a Miracast session (Miracast Session), and then start to transmit video and audio data. The source device 102 integrates audio and video data in the form of MPEG2-TS and transmits them in the form of UDP/IP (Internet Protocol, a protocol for interconnection between networks) using the RSTP protocol, while the receiving device 108 performs the reverse solution. After encapsulation, HDCP (High-bandwidth Digital Content Protection, high-bandwidth digital content protection technology) decryption and decompression, video and audio data are presented.

During the transmission process, the device can dynamically adjust the transmission data and format according to the strength of the wireless signal and even the power status of the device. The adjustable content includes compression rate, video and audio format, video resolution and so on.

In the second mode (interactive mode):

1. Insert the receiving device 108 into the HDMI interface 110 of the display device 106, and the video and audio data of the receiving device 108 can be transmitted to the display device 106 through the HDMI interface 110;

2. Connect the Micro USB interface 116 of the receiving device 108 to the USB interface 112 of the display device 106, and the receiving device 108 will start up after power-on;

3. Enter the internal operating system (OS) of the receiving device 108 after the receiving device 108 is turned on, the operating system opens WiFi and Bluetooth by default, runs the receiving end application program Connect Application (RX), and waits for the search connection of the source end device 102;

4. Connect the keyboard 124 and the mouse 126 through the USB hub to the USB 3.0 interface of the receiving device 108, or connect the Bluetooth keyboard and the Bluetooth mouse through Bluetooth;

5. Start the source device 102, run the source application program Connect Application (TX), search and connect the receiving device 108, after the wireless connection is successfully established, the content of the source device 102 can be transmitted to the user interface of the receiving device 108 via WiFi In the menu, the user can use the keyboard 124 and the mouse 126 to reversely operate the source device 102 on the receiving device 108 through the RTSP protocol of TCP. The device 108 sends a control command to open the menu interface to the source device 102, and the source device 102 opens the menu interface according to the control command to open the menu interface. At this time, the display device 106 will display the menu interface of the source device 102, and the user can Open the application program of the menu interface of the source device 102 directly through the keyboard 124 or the mouse 126;

6. Further, at this time, the user interface of the source device 102 is transformed into a virtual touchpad, which has a function similar to a small touchpad on a laptop computer, so that the user can also control the display on the display device 106 through the virtual touchpad The user interface or application of the source device 102. That is to say, the screen of the source device 102 displays a virtual touchpad, and the display device 106 displays a menu interface or an application program interface of the source device 102 and plays corresponding sounds.

To sum up, in the above wireless display control system 100, in the first mode, the receiving device 104 can display images and play sounds according to the video and audio data sent by the source device 102; in the second mode, the receiving device 104 It can receive and send the user's control signal to the source device 102, and the source device 102 performs corresponding operations according to the control signal, which enables the sink device 104 and the source device 102 to achieve two-way interaction, increasing the wireless display control system 100. convenience.

Please refer to FIG. 2 and FIG. 3 , a preferred embodiment of the present invention provides a wireless display control method. The wireless display control method can be realized by the wireless display control system 100 in the above embodiment.

Specifically, the wireless display control method includes the following steps:

S1: The source device establishes a wireless connection with the receiving device of the sink device, and enters step S2 in the first mode and the second mode;

S2: The source device sends the video and audio data of the source device to the receiving device, and then enters step S3;

S3: the receiving device receives the audio-visual data of the source device and sends the audio-visual data to the display device of the receiving device, and then enters step S4;

S4: The display device displays images and plays sounds according to the video and audio data.

In step S1 , after the receiving device 108 is connected to the display device 106 , the receiving device 108 is powered on and runs the receiving end application Connect Application (RX), waiting for the search connection of the source device 102 .

The source device 102 enters the "wireless display mode" interface to search for nearby receiving devices 108 in the first mode, and establishes a wireless connection with the found receiving devices 108 after successfully searching for the receiving devices 108 . If the receiving device 108 is not found, the source device 102 continues to search for the receiving device 108 .

The source device 102 runs a source application program Connect Application (TX) to search for nearby receiving devices 108 in the second mode, and establishes a wireless connection with the found receiving devices 108 after successfully searching for a receiving device 108 . If the receiving device 108 is not found, the source device 102 continues to search for the receiving device 108 .

In step S2, after the source device 102 establishes a wireless connection with the receiving device 108, the two exchange parameter information such as video and audio formats, and then the source device 102 sends the video and audio data of the source device 102 to the receiving device 108.

In the second mode, after step S4, the wireless display control method includes the following steps:

S5: the receiving device receives the control signal input by the user, and sends the control signal to the source device, and then enters step S6;

S6: The source device performs a corresponding operation according to the control signal.

In step S5, the receiving device 108 detects the control signal input by the user in real time. A user may input control signals through an input device 122 such as a keyboard 124 or a mouse 126 . The input device 122 detects a control signal input by the user, and transmits the received control signal to the receiving device 108 via wired or wireless, and the receiving device 108 wirelessly transmits the control signal to the source device 102 .

In step S6, the control signal is, for example, a control signal for opening a menu interface, and the source device 102 opens the menu interface of the source device 102 according to the control signal for opening the menu interface. Since at this time, the source device 102 and the sink device 108 have successfully established a wireless connection, and the video and audio data of the source device 102 have been synchronously sent to the sink device 108 and displayed and played on the display device 106, therefore, the menu interface of the source device 102 displayed on the display device 106.

Further, at this time, the user interface of the source device 102 is transformed into a virtual touchpad, which has a function similar to a small touchpad on a laptop computer, so that the user can also control the source displayed on the display device 106 through the virtual touchpad. The user interface or application program of end device 102. That is to say, the screen of the source device 102 displays a virtual touchpad, and the display device 106 displays a menu interface or an application program interface of the source device 102 and plays corresponding sounds.

To sum up, in the above wireless display control method, in the first mode, the receiving device 104 can display images and play sounds according to the video and audio data sent by the source device 102; in the second mode, the receiving device 104 can Receive and send the user's control signal to the source device 102, and the source device 102 performs corresponding operations according to the control signal, which enables two-way interaction between the sink device 104 and the source device 102, increasing the convenience of wireless display.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples", or "some examples" etc. A specific feature, structure, material, or characteristic described in an embodiment or an example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment for use. For purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. processing to obtain the program electronically and store it in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the above described embodiments, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A wireless display control system, comprising a source device and a receiving device, characterized in that the receiving device includes a display device and a receiving device, and the receiving device is arranged on the display device; The wireless display control system can work in the first mode and the second mode; The source device is used to establish a wireless connection with the receiving device; In the first mode and the second mode, the source device is used to send the video data of the source device to the receiving device; The receiving device is used to receive the audio-visual data of the source device and send the audio-visual data to the display device; The display device is used for displaying images and playing sounds according to the audio-visual data; In the second mode, the receiving device is used to receive a control signal input by a user, and send the control signal to the source device; The source device is used to perform corresponding operations according to the control signal. 2. The wireless display control system according to claim 1, wherein the display device includes a connection interface, the receiving device includes a connection plug, and the connection plug is plugged into the connection interface. 3. The wireless display control system according to claim 2, wherein the display device includes a first power interface, the receiving device includes a second power interface, and the second power interface is connected to the first power interface through a power cord . 4. The wireless display control system according to claim 1, characterized in that the wireless display control system comprises an input device, the receiving device comprises an input interface, the input device is connected to the input interface and is used to receive the control signal input by the user And send the control signal to the receiving device. 5. The wireless display control system according to claim 1 or 4, characterized in that the wireless display control system comprises an input device, the receiving device comprises a first wireless transmission module, and the input device comprises a second wireless transmission module; The input device is used to receive the control signal input by the user and send the control signal to the first wireless transmission module through the second wireless transmission module; The first wireless transmission block is used to receive the control signal. 6. The wireless display control system according to claim 1, wherein in the second mode, the user interface of the source device for controlling the source device is transformed into a virtual touchpad. 7. A wireless display control method, comprising the following steps: S1: The source device establishes a wireless connection with the receiving device of the sink device, and enters step S2 in the first mode and the second mode; S2: The source device sends the video and audio data of the source device to the receiving device, and then enters step S3; S3: the receiving device receives the audio-visual data of the source device and sends the audio-visual data to the display device of the receiving device, and then enters step S4; S4: the display device displays images and plays sounds according to the audio-visual data; In the second mode, after step S4, the wireless display control method includes the following steps: S5: the receiving device receives the control signal input by the user, and sends the control signal to the source device, and then enters step S6; S6: The source device performs a corresponding operation according to the control signal. 8. The wireless display control method according to claim 7, wherein step S5 comprises: an input device receiving the control signal input by a user and sending the control signal to the receiving device. 9 . The wireless display control method according to claim 8 , wherein, in step S5 , the input device sends the control signal to the receiving device in a wired or wireless manner. 10. The wireless display control method according to claim 7, wherein step S6 comprises: the source device controls the user interface of the source device to transform into a virtual touchpad.