Wireless auxiliary stream equipment and screen projection method and system based on wireless auxiliary stream equipment

Abstract

The invention provides a wireless auxiliary streaming device, comprising: a first transmission module configured to establish a communication connection between the wireless auxiliary streaming device and a terminal device, the wireless auxiliary streaming device receiving audio and video data from the terminal device through the first transmission module; the second transmission module is configured to wirelessly send the audio and video data received by the wireless auxiliary streaming equipment to the video conference host, so that audio and video equipment connected with the video conference host displays or plays the audio and video data; and the power supply module is configured to supply power to the wireless auxiliary current equipment so as to enable the wireless auxiliary current equipment to be in a standby state, and the power supply module has a power supply mode and a charging mode. Compared with the prior art, the wireless auxiliary current equipment is internally provided with the power supply module, and the power supply module can enable the wireless auxiliary current equipment to maintain the standby state, so that the wireless auxiliary current equipment can be quickly switched from the standby state to the working state, and the problem that the wireless auxiliary current equipment in the prior art is relatively long in starting time is solved; the efficiency of auxiliary stream transmission (content sharing) is remarkably improved, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to a method and apparatus for quickly starting a wireless auxiliary streaming device and a screen projection method based on the wireless auxiliary streaming device. Background Art

[0002] With the rapid development of science and technology, people's demand for content sharing is growing. In conference scenarios, it is necessary to synchronize the display content on terminal devices such as computers and mobile phones to video conferencing equipment for display. At present, the conventional practice is to use the display output interface of the computer, such as VGA, DVI, HDMI, DisplayPort, etc., to transmit audio and video signals to the external display screen or video conferencing equipment in a wired manner. However, due to the problem of non-uniformity of computer video output interfaces, different computers may be equipped with different types of video output interfaces. This makes it necessary for conference projection equipment or auxiliary stream sending equipment to be equipped with a variety of different interfaces and cables to be compatible with various computers. In this way, not only will the desktop cables be messy and the deployment difficulty will be greatly increased, but also unnecessary cost waste will be caused by the purchase of a large number of cables of different specifications. Therefore, the use of wireless screen projection devices or wireless auxiliary stream devices is becoming more and more frequent. According to existing technical means, when performing screen projection operations, the USB wireless auxiliary stream device must first be connected to the laptop computer and the laptop computer's USB interface must be used to supply power to it. This means that the USB wireless auxiliary streaming device needs to establish a connection with the laptop computer and obtain the power required for startup before it can be turned on and run, and then establish a wireless connection with the video conferencing equipment to achieve the smooth transmission of audio and video data and achieve the final effect of screen projection. However, it must be pointed out that the existing technology has significant defects. It takes a long time for the USB wireless auxiliary streaming device to complete the connection with the laptop computer, obtain sufficient startup power, and complete initialization. In actual usage scenarios, users usually need to wait for more than ten seconds or even longer after plugging the USB wireless auxiliary streaming device into the laptop computer. Such a long waiting time greatly reduces the efficiency of auxiliary streaming transmission (content sharing), and also makes the user experience plummet, adding many obstacles to daily office processes. Summary of the invention

[0003] The present invention provides a fast-start wireless auxiliary stream device, which can realize wireless communication between terminal equipment and video conference host, so as to efficiently transmit audio and video data. The wireless auxiliary stream device is internally configured with a power module, which can put the wireless auxiliary stream device into a standby state, so as to solve the problem of long startup time of wireless auxiliary stream devices in the prior art, significantly improve the efficiency of auxiliary stream transmission (content sharing), and improve user experience.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a wireless auxiliary stream device, the wireless auxiliary stream device is communicatively connected with a terminal device, the wireless auxiliary stream device is wirelessly connected with a video conference host, and the terminal device wirelessly communicates with the video conference host through the wireless auxiliary stream device to transmit audio and video data. The wireless auxiliary stream device includes: a first transmission module, configured to establish a communication connection between the wireless auxiliary stream device and the terminal device, and the wireless auxiliary stream device receives audio and video data from the terminal device through the first transmission module; a second transmission module, configured to wirelessly send the audio and video data received by the wireless auxiliary stream device to the video conference host, so that the audio and video data can be displayed or played on the audio and video device connected to the video conference host; a power supply module, configured to supply power to the wireless auxiliary stream device so that the wireless auxiliary stream device is in a standby state, and the power supply module has a power supply mode and a charging mode; a processor, which is respectively connected to the first transmission module, the second transmission module and the power supply module, and is configured to control the first transmission module, the second transmission module and the power supply module connected thereto.

[0005] As a preferred solution, the power module is connected to the first transmission module and the second transmission module to directly supply power to the first transmission module and the second transmission module to provide the power required for audio and video data transmission.

[0006] As a preferred solution, the power module is a rechargeable battery.

[0007] As a preferred solution, the first transmission module of the wireless auxiliary flow device further includes a charging interface. When the wireless auxiliary flow device is communicatively connected with the terminal device through the first transmission module, the terminal device charges the power module through the first transmission module.

[0008] As a preferred solution, the terminal device supplies power to the second transmission module through the first transmission module to provide the power required for wirelessly transmitting the audio and video data received by the wireless auxiliary stream device to the video conference host.

[0009] As a preferred solution, the first transmission module is configured to send a first signal to the power module when communicating with the terminal device, and the power module switches to the charging mode after receiving the first signal.

[0010] As a preferred solution, the wireless auxiliary streaming device also includes a power detection module, which is used to detect the current power level of the power module; when the first transmission module is connected to the terminal device for communication, when the current power level of the power module is lower than a preset threshold, the power module switches to charging mode.

[0011] As a preferred solution, the wireless auxiliary streaming device further includes a charging module, and the wireless auxiliary streaming device charges the power module through the charging module.

[0012] As a preferred solution, the first transmission module is a universal physical interface; the second transmission module is a wireless transmission module.

[0013] The present invention also provides a screen projection method for a wireless auxiliary stream device, which is applied to the wireless auxiliary stream device, the wireless auxiliary stream device is communicatively connected with the terminal device; the wireless auxiliary stream device is wirelessly connected with the video conferencing host; the terminal device wirelessly communicates with the video conferencing host through the wireless auxiliary stream device to transmit audio and video data, and the method includes: obtaining the power of the power module to power the wireless auxiliary stream device so that the wireless auxiliary stream device is in a standby state, wherein the power module has a power supply mode and a charging mode; when the first transmission module is communicatively connected with the terminal device, the wireless auxiliary stream device switches from the standby state to the working state; receiving the audio and video data from the terminal device through the first transmission module, and transmitting the received audio and video data to the second transmission module; and wirelessly sending the received audio and video data to the video conferencing host through the second transmission module.

[0014] As a preferred solution, when the first transmission module is connected to the terminal device for communication, the first transmission module sends a first signal to the power module, and the power module switches to a charging mode after receiving the first signal.

[0015] As a preferred solution, after the first transmission module is connected to the terminal device for communication, the current power level of the power module is detected. When the current power level is lower than a preset threshold, the power module switches to a charging mode.

[0016] The present invention also provides a screen projection system including a wireless auxiliary stream device, including the above-mentioned wireless auxiliary stream device, a terminal device and a video conferencing host, wherein: the wireless auxiliary stream device is communicatively connected with the terminal device; the wireless auxiliary stream device is wirelessly connected with the video conferencing host; the terminal device wirelessly communicates with the video conferencing host through the wireless auxiliary stream device to transmit audio and video data.

[0017] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] The present invention provides a wireless auxiliary stream device, which includes: a first transmission module, configured to establish a communication connection between the wireless auxiliary stream device and a terminal device, and the wireless auxiliary stream device receives audio and video data from the terminal device through the first transmission module; a second transmission module, configured to wirelessly send the audio and video data received by the wireless auxiliary stream device to a video conference host, so that the audio and video data can be displayed or played on the audio and video device connected to the video conference host; a power module, configured to supply power to the wireless auxiliary stream device so that the wireless auxiliary stream device is in a standby state, and the power module has a power supply mode and a charging mode. Compared with the prior art, the wireless auxiliary stream device is internally configured with a power module, and the power module can keep the wireless auxiliary stream device in a standby state, so that the wireless auxiliary stream device can quickly switch from a standby state to a working state, so as to solve the problem of a long startup time of the wireless auxiliary stream device in the prior art, significantly improve the efficiency of auxiliary stream transmission (content sharing), and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A schematic diagram of an application scenario of the wireless auxiliary flow device provided by the present invention.

[0020] Figure 2 : A structural diagram of an embodiment of a wireless sharing device provided by the present invention.

[0021] Figure 3 : A structural diagram of another embodiment of the wireless sharing device provided by the present invention.

[0022] Figure 4 : A structural diagram of another embodiment of the wireless sharing device provided by the present invention.

[0023] Figure 5 : A flow chart of a screen projection method for a wireless auxiliary streaming device provided for the invention. DETAILED DESCRIPTION

[0024] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0025] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0026] In the description of this application, unless otherwise specified, "plurality" means two or more. The term "at least one" in this application means one or more, and the term "plurality" in this application means two or more.

[0027] It should be understood that the "one embodiment", "an embodiment", "a possible implementation" mentioned in the specification means that the specific features, structures or characteristics related to the embodiment or implementation are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment", "a possible implementation" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides a wireless auxiliary stream device, which can quickly realize wireless communication between a terminal device and a video conference host, thereby efficiently transmitting audio and video data. The wireless auxiliary stream device is internally configured with a power module, which can put the wireless auxiliary stream device into a standby state to solve the problem of a long startup time of the wireless auxiliary stream device in the prior art, significantly improve the efficiency of auxiliary stream transmission (content sharing), and improve the user experience.

[0030] Reference Figure 1, shows an application scenario of a wireless auxiliary stream device 1 provided by an embodiment of the present application. In the actual auxiliary stream sharing application scenario, the wireless auxiliary stream device 1, the terminal device 2 and the video conference host 3 can be in the same physical location such as a conference room, and the three together construct a wireless auxiliary stream sharing system. The wireless auxiliary stream device 1 involved in the present invention has the ability to establish a wireless communication link between the terminal device 2 and the video conference host 3, thereby realizing efficient transmission of audio and video data. The wireless auxiliary stream device 1 is equipped with a first transmission module, which can be a universal physical interface. With this physical interface, the wireless auxiliary stream device 1 can not only establish a physical connection with the terminal device 2, but also receive the audio and video data and control information transmitted by the terminal device 2 through the interface, and then transmit these data to the video conference host 3 through the second transmission module of the wireless auxiliary stream device 1, such as the wireless transmission module, and finally display or play on the audio and video device connected to the video conference host 3. The video conference host 3 can be connected to the display device and the speaker device separately, or the display device and the speaker device can be integrated. It should be emphasized that the wireless auxiliary stream device 1 is a separate device with an independent hardware structure and is not integrated inside the terminal device 2.

[0031] When screen projection or auxiliary stream sharing is required, the terminal device 2 establishes a connection with the wireless auxiliary stream device 1 through a universal physical interface. After the terminal device 2 generates the data to be projected, it transmits the data to the wireless auxiliary stream device 1 through the physical interface. Such physical interfaces include not only the common USB interface, but also the graphic display output interface, such as the VGA interface with analog signal transmission capability, the DP interface supporting high-resolution and multi-channel audio transmission, the DVI interface using digital signal transmission to ensure image stability, and the HDMI interface capable of simultaneously transmitting high-quality audio and video signals. The wireless auxiliary stream device 1 is equipped with a wireless transmission module, which is used to establish a wireless connection with the video conference host 3. The wireless auxiliary stream device 1 sends the screen projection data received from the terminal device 2 to the video conference host 3 through its own wireless transmission module and its own network resources to realize screen projection display. In this process, the terminal device 2 and the video conference host 3 do not need to establish a direct connection, which effectively saves the network resources of the terminal device 2, so that it can freely use its own network while projecting the screen. When the user annotates the projection data on the display screen of the video conference host 3, if the annotation needs to be synchronized to the terminal device 2, the annotated data will be transmitted back to the wireless auxiliary stream device 1 through the wireless transmission module, and then the wireless auxiliary stream device 1 will transmit it to the terminal device 2 through the physical interface for display. In this link, the wireless auxiliary stream device 1 bears the network resource consumption of data transmission, saving the network resources of the video conference host 3 and achieving the optimal configuration of the projection system resources. The wireless transmission module here can be a common wireless transceiver module such as a WIFI module and a Bluetooth module. In addition, this embodiment takes a wireless auxiliary stream device as an example, but in fact, multiple wireless auxiliary stream devices 1 can be wirelessly connected to the video conference host 3. After the video conference host 3 simultaneously receives the data to be projected on multiple terminal devices 2, it will be displayed in split screen on the display device corresponding to the video conference host 3.

[0032] Reference Figure 2The structure diagram of an embodiment of a wireless auxiliary stream device 1 is shown. The wireless auxiliary stream device 1 in this embodiment includes a first transmission module 11, a second transmission module 12, a processor 13 and a power module 14. The processor 13 is connected to each module respectively, and finally realizes the management and control of the working state of the entire wireless auxiliary stream device 1 by controlling the first transmission module 11, the second transmission module 12 and the power module 13 connected thereto. For example, the processor 13 has a device control function, controlling the operating state of the entire device, such as controlling various parameter settings of wireless transmission or how to establish a connection with the video conference host 3. The first transmission module 11 is configured to establish a communication connection between the wireless auxiliary stream device 1 and the terminal device 2. The wireless auxiliary stream device 1 receives audio and video data from the terminal device 1 through the first transmission module 11. The audio and video data is the data to be projected on the terminal device 2. For example, the data is generated by various applications running on the terminal device 2, such as content data of documents, pictures, videos, presentations, etc., and may also contain format information related thereto, display settings and other metadata. In addition, some control data of the terminal device 2 can also be transmitted through the first transmission module 11 to realize the screen projection control of the wireless auxiliary stream device 1, such as starting or ending the screen projection, or the selection of the screen projection direction, that is, sending audio and video data from the terminal device 2 to the video conference host 3 or receiving audio and video data from the video conference host 3. The second transmission module 12 is configured to send the audio and video data received from the first transmission module 11 to the video conference host 3 through a wireless network, so that the audio and video device connected to the video conference host 3 displays or plays the received audio and video data. The power module 14 is configured to power each module of the wireless auxiliary stream device 1 so that the wireless auxiliary stream device 1 is in a standby state. The power module 14 has a power supply mode and a charging mode. The first transmission module 11 is a physical interface with a data transmission function, which includes not only a common USB interface, but also a graphic display output interface, such as a VGA interface with analog signal transmission capability, a DP interface supporting high-resolution and multi-channel audio transmission, a DVI interface using digital signal transmission to ensure image stability, and an HDMI interface capable of simultaneously transmitting high-quality audio and video signals. The second transmission module 12 is a wireless transmission module, such as a common wireless transceiver module such as a WIFI module and a Bluetooth module. In this embodiment, the wireless auxiliary stream device 1 and the terminal device 2 are connected by a USB interface, and the wireless auxiliary stream device 1 and the video conference host 3 are wirelessly connected by a WIFI module. That is, the terminal device 2 communicates with the video conference host 3 through the wireless auxiliary stream device 1 to transmit audio and video data, and finally realizes the transmission, display and playback of the data to be projected.

[0033] Specifically, the power module 14 can independently power the entire wireless auxiliary stream device to put it in a standby state. When the wireless auxiliary stream device 1 is disconnected from the terminal device 2, the power module 14 immediately continues to supply power to the wireless auxiliary stream device 1, so that the entire wireless auxiliary stream device 1 is in a standby state, and the power module 14 is in a power supply mode. The standby state of the wireless auxiliary stream device refers to the state in which the device is not actually transmitting the data to be projected, but still remains ready to work at any time. In the standby state, most of the functional modules of the wireless auxiliary stream device are in a low-power operation mode to reduce energy consumption. For example, the first transmission module 11, the second transmission module 12 and the processor 13 only maintain basic operation monitoring to reduce unnecessary calculations and signal transmission. At the same time, the wireless auxiliary stream device 1 will continue to monitor the connection status with the terminal device 2 or maintain the connection status with the video conferencing host 3. Once a connection request or projection command from the terminal device 2 is detected, it can respond quickly, wake up the relevant functional modules, and enter a normal working state. Preferably, the power module 14 is a rechargeable battery, which can maintain a relatively stable power level through the charging mode, so as to provide necessary power support for the wireless auxiliary flow device 1 at any time during the standby state, ensuring that the device can quickly switch from the standby state to the working state and shorten the response time.

[0034] As a preferred solution, the power module 14 is connected to the first transmission module 11 and the second transmission module 12, and directly supplies power to the first transmission module 11 and the second transmission module 12 to provide the power required for the transmission of the screen data to be transmitted, such as audio and video data. That is, when the wireless auxiliary stream device 1 is connected to the terminal device 2, the wireless auxiliary stream device 1 is in the stage of data transmission to be projected. After the first transmission module 11 establishes a signal connection with the terminal device 2, it starts to receive the projection data transmitted by the terminal device 2. Subsequently, these data are quickly transmitted to the second transmission module 12. After receiving the data, the second transmission module 12 quickly transmits the projection data to the display device (such as the video conference host 3). In addition, in the data transmission stage of the screen data to be projected, the processor 13 also obtains power from the power module 14. In the wireless auxiliary stream device 1, the processor 13 parses and verifies the screen data to be projected received from the terminal device 2 to ensure the integrity and accuracy of the data, and then repackages and encrypts the data according to the requirements of the second transmission module 12 so as to efficiently send it to the video conference host 3. During this process, due to the stable and reliable power supply, there is no need to wait for the wireless auxiliary stream device 1 to be powered on and initialized before entering the working state, and the second transmission module 12 needs to be paired and connected with the video conferencing host 3 before starting wireless data transmission. This greatly shortens the waiting time for screen sharing and significantly improves sharing efficiency.

[0035] Reference Figure 3A structural schematic diagram of another embodiment of the wireless auxiliary flow device 1 is shown. In this embodiment, the first transmission module 11 of the wireless auxiliary flow device 1 also includes a charging interface (not marked in the figure). When the wireless auxiliary flow device 1 is connected to the terminal device 2 through the first transmission module 11, the terminal device charges the power module 14 through the charging interface of the first transmission module 11. The charging interface and the data transmission interface with data transmission function can be integrated in the same physical interface, or the charging interface and the data transmission interface are two independent data ports. In this embodiment, the first transmission module 11 is taken as a USB interface as an example, that is, the charging interface and the data transmission interface are integrated in the same physical interface, such as a USB interface, which can be used for charging and data transmission at the same time. Therefore, in the data transmission stage of the data to be projected, the power module can be charged synchronously, and there is no need to set up an additional charging module and charge the wireless auxiliary flow device separately, so that users can charge and use it more conveniently.

[0036] As a preferred solution, the terminal device is connected to the processor 13 and the second transmission module 12 respectively through the first transmission module 11, that is, the terminal device 2 supplies power to the first transmission module 11, the processor 13 and the second transmission module 12. The terminal device 2 supplies power to the second transmission module 12 through the first transmission module 11 to provide the power required for wirelessly sending the audio and video data received by the wireless auxiliary stream device to the video conference host 3. The terminal device 2 supplies power to the processor 13 through the first transmission module 11 to provide the power required for the normal operation of the processor 13, such as the power required for the processor to parse and verify the data to be projected, ensure the integrity and accuracy of the data, and repackage and encrypt the data. When the user establishes an electrical connection between the first transmission module 11 and the terminal device 2, the first transmission module 11 simultaneously assumes the functions of charging and power supply: on the one hand, it supplies power to the processor 13 and the second transmission module 12, and on the other hand, it charges the power module 14, ensuring that the wireless auxiliary flow device 1 has continuous and stable power support during operation, and also avoiding the power exhaustion of the power module 14, maintaining the power required for the wireless auxiliary flow device 1 to be in the standby state, greatly shortening the waiting time for screen sharing, and significantly improving the sharing efficiency.

[0037] As a preferred solution, when the first transmission module 11 is configured to communicate with the terminal device 2, it sends a first signal to the power module 14, and the power module 14 switches to the charging mode after receiving the first signal. In this embodiment, taking the USB interface as an example, when the wireless auxiliary flow device 1 is inserted into the terminal device 2 through the USB interface, the terminal device 2 can send a control signal, i.e., a first signal, to the wireless auxiliary flow device 1 through the first transmission module 11 to control the power module 14 to switch to the charging mode. Preferably, after the terminal device 2 provides the power required for the normal operation of the wireless auxiliary flow device 1 through the first transmission module 11, the power module 14 switches to the charging mode to synchronously maintain the normal working state of the wireless auxiliary flow device 1 and the power required for the subsequent standby state, ensuring that the wireless auxiliary flow device 1 can quickly switch from the standby state to the working state and shorten the response time.

[0038] As a preferred solution, the wireless auxiliary stream device 1 also includes a power detection module (not marked in the figure), which is used to detect the current power of the power module; when the first transmission module 11 is connected to the terminal device 2 in communication, the power detection module detects that the current power of the power module is lower than the preset threshold, and switches the power module 14 to the charging mode. Specifically, the preset threshold can be the power value required for the wireless auxiliary stream device 1 to maintain the standby state for 3-15 hours, so as to ensure that the wireless auxiliary stream device 1 has sufficient battery life to maintain the standby state, and can quickly switch to the working state when connected to the terminal device, without waiting for the power-on initialization of the wireless auxiliary stream device 1 and the pairing connection process of the second transmission module 12 and the video conferencing host 3, which greatly shortens the waiting time for screen sharing and significantly improves the sharing efficiency.

[0039] Reference Figure 4 , shows a structural schematic diagram of another embodiment of the wireless auxiliary flow device 1. In this embodiment, the wireless auxiliary flow device 1 also includes a charging module 15, and the wireless auxiliary flow device 1 charges the power module 14 through the charging module 15. The charging module 15 can be wired charging or wireless charging. This embodiment takes the wireless charging of the wireless auxiliary flow device 1 as an example. For example, the charging seat 4 can include a primary coil and a power conversion circuit, and the power conversion circuit converts the input alternating current into an alternating current signal suitable for the primary coil to generate an alternating magnetic field. The charging module 15 can include a secondary coil and a rectifier and voltage stabilizing circuit for converting the induced current into a direct current that can charge the battery. Simply place the wireless auxiliary flow device 1 on the charging seat 4, and the power module 14 of the wireless auxiliary flow device 1 can be charged through the charging module 15, so that the power module 14 has at least the power required to put the wireless auxiliary flow device 1 in the standby state, so as to provide the necessary power support for the wireless auxiliary flow device 1 at any time during the standby state, ensuring that the device can quickly switch from the standby state to the working state, realize the rapid startup of the wireless auxiliary flow device, and shorten the response time.

[0040] Reference Figure 5 , shows a screen projection method of a wireless sharing device 1. Figure 1 In this embodiment, the wireless auxiliary stream device 1 is connected to the terminal device 2 for communication, and the wireless auxiliary stream device 1 is wirelessly connected to the video conference host 3; the terminal device wirelessly communicates with the video conference host through the wireless auxiliary stream device to transmit audio and video data, and the terminal device 2 wirelessly communicates with the video conference host 3 through the wireless auxiliary stream device 1 to transmit audio and video data, and finally realizes the transmission, display and playback of audio and video data on the audio and video device connected to the video conference host. The wireless auxiliary stream device 1 includes a first transmission module 11, a second transmission module 12, a processor 13 and a power module 14. The control method of the wireless auxiliary stream device 1 includes the following steps:

[0041] Step S10 obtains the power of the power module 14 to power the wireless auxiliary flow device 1 so that the wireless auxiliary flow device is in a standby state, wherein the power module 14 has a power supply mode and a charging mode. The power module 14 can power the entire wireless auxiliary flow device to put it in a standby state. When the wireless auxiliary flow device 1 is disconnected from the terminal device 2, the power module 14 immediately continues to supply power to the wireless auxiliary flow device 1, so that the entire wireless auxiliary flow device 1 is in a standby state. At this time, the power module 14 is in a power supply mode, so as to provide the necessary power support for the wireless auxiliary flow device 1 at any time during the standby state, ensuring that the device can quickly switch from the standby state to the working state, and shorten the response time.

[0042] Step S20: When the first transmission module 11 is in communication connection with the terminal device 2, the wireless auxiliary stream device switches from the standby state to the working state. Since the wireless auxiliary stream device is always in the standby state, once the wireless auxiliary stream device 1 detects a connection request or screen projection instruction from the terminal device 2, it can respond quickly, wake up the relevant functional modules, and enter the normal working state without re-powering on and initializing and re-establishing the connection with the video conferencing host 3, so the response time is extremely short.

[0043] Step S30 receives the audio and video data from the terminal device 2 through the first transmission module 11, and transmits the received audio and video data to the second transmission module 12. And step S40 wirelessly sends the received audio and video data to the video conference host 3 through the second transmission module 12, and finally displays or plays it on the audio and video device connected to the video conference host 3.

[0044] As a preferred solution, when the first transmission module 11 is communicatively connected with the terminal device 2, the first transmission module 11 sends a first signal to the power module 14, and the power module 14 switches to the charging mode after receiving the first signal. When the wireless auxiliary stream device 1 is inserted into the terminal device 2 through the USB interface, the terminal device 2 can send a control signal, i.e., a first signal, to the wireless auxiliary stream device 1 through the first transmission module 11 to control the power module 14 to switch to the charging mode. Preferably, after the terminal device 2 provides the power required for the normal operation of the wireless auxiliary stream device 1 through the first transmission module 11, the power module 14 switches to the charging mode to synchronously maintain the normal working state of the wireless auxiliary stream device 1 and the power required for the subsequent standby state, to ensure that the wireless auxiliary stream device 1 can quickly switch from the standby state to the working state and shorten the response time.

[0045] As a preferred solution, when the first transmission module 11 is connected to the terminal device 2 for communication, the current power of the power module is detected. When the current power is detected to be lower than a preset threshold, the power module 14 switches to charging mode. Specifically, the preset threshold can be the power value required for the wireless auxiliary stream device 1 to maintain a standby state for 3-15 hours, so as to ensure that the wireless auxiliary stream device 1 has sufficient battery life to maintain a standby state, and can quickly switch to a working state when connected to a terminal device, without waiting for the power-on initialization of the wireless auxiliary stream device 1 and the pairing connection process of the second transmission module 12 and the video conferencing host 3, which greatly shortens the waiting time for screen sharing and significantly improves the sharing efficiency.

[0046] Reference Figures 1 to 4 , shows a screen projection system for a wireless auxiliary stream device, which at least includes: a wireless auxiliary stream device 1, a terminal device 2 and a video conference host 3 that can be quickly started as in the above embodiment. The wireless auxiliary stream device 1 is connected to the terminal device 2 in communication, and the wireless auxiliary stream device 1 is wirelessly connected to the video conference host 3; the terminal device 2 communicates with the video conference host 3 through the wireless auxiliary stream device 1 to transmit audio and video data, and the terminal device 2 communicates with the video conference host 3 through the wireless auxiliary stream device 1 to transmit audio and video data, and finally realizes that the audio and video data are displayed or played on the audio and video device connected to the video conference host, and finally realizes the transmission, display and playback of audio and video data. The wireless auxiliary stream device 1 has an independent power module 14, and the power module 14 can power each module of the wireless auxiliary stream device 1 to put the wireless auxiliary stream device 1 in a standby state, so that the wireless auxiliary stream device 1 can provide the necessary power support for the wireless auxiliary stream device 1 at any time during the standby state, ensuring that the device can quickly switch from the standby state to the working state, realize the rapid startup of the wireless auxiliary stream device, and shorten the response time.

[0047] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0048] The present invention provides a wireless auxiliary stream device, which includes: a first transmission module, configured to establish a communication connection between the wireless auxiliary stream device and a terminal device, and the wireless auxiliary stream device receives audio and video data from the terminal device through the first transmission module; a second transmission module, configured to wirelessly send the audio and video data received by the wireless auxiliary stream device to a video conference host, so that the audio and video data can be displayed or played on the audio and video device connected to the video conference host; a power module, configured to supply power to the wireless auxiliary stream device so that the wireless auxiliary stream device is in a standby state, and the power module has a power supply mode and a charging mode. Compared with the prior art, the power module can independently supply power to the entire wireless auxiliary stream device to put it in a standby state. When the wireless auxiliary stream device is disconnected from the terminal device, the power module immediately and continuously supplies power to the wireless auxiliary stream device, so that the entire wireless auxiliary stream device is in a standby state, and the power module is in a power supply mode at this time. In the standby state, most of the functional modules of the wireless auxiliary stream device are in a low-power operation mode to reduce energy consumption. When in standby mode, the wireless sharing device will continuously monitor the connection status with the terminal device or maintain the connection status with the video conferencing host. Once a connection request or screen projection command is detected from the terminal device, it can respond quickly, wake up the relevant functional modules, and enter normal working state, ensuring that the device can quickly switch from standby state to working state and shorten the response time.

[0049] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wireless sharing device, wherein the wireless sharing device is connected to a terminal device for communication; the wireless sharing device is wirelessly connected to a video conference host; The terminal device wirelessly communicates with the video conference host through the wireless sharing device to transmit audio and video data, and the wireless sharing device includes: A first transmission module, configured to establish a communication connection between the wireless sharing device and the terminal device, and the wireless sharing device receives audio and video data from the terminal device through the first transmission module; A second transmission module is configured to wirelessly transmit the audio and video data received by the wireless auxiliary stream device to the video conference host, so that the audio and video data can be displayed or played on the audio and video device connected to the video conference host; A power module, configured to supply power to the wireless sharing device so that the wireless sharing device is in a standby state, the power module having a power supply mode and a charging mode; The processor is respectively connected to the first transmission module, the second transmission module and the power supply module, and is configured to control the first transmission module, the second transmission module and the power supply module connected thereto.

2. The wireless sharing device according to claim 1, characterized in that: The power supply module is connected to the first transmission module and the second transmission module, and directly supplies power to the first transmission module and the second transmission module to provide the power required for transmitting audio and video data.

3. The wireless sharing device according to claim 1, characterized in that: The power module is a rechargeable battery.

4. The wireless sharing device according to claim 1, characterized in that: The first transmission module of the wireless auxiliary flow device further includes a charging interface. When the wireless auxiliary flow device is communicatively connected with the terminal device through the first transmission module, the terminal device charges the power module through the first transmission module.

5. The wireless sharing device according to claim 4, characterized in that: The terminal device supplies power to the second transmission module through the first transmission module to provide the power required for wirelessly sending the audio and video data received by the wireless auxiliary stream device to the video conference host.

6. The wireless sharing device according to claim 4, characterized in that: The first transmission module is configured to send a first signal to the power module when communicating with the terminal device, and the power module switches to a charging mode after receiving the first signal.

7. The wireless sharing device according to claim 1, characterized in that: The wireless sharing device further includes a power detection module, which is used to detect the current power of the power module; When the first transmission module is connected to the terminal device for communication, when the current power level of the power module is lower than a preset threshold, the power module switches to a charging mode.

8. The wireless sharing device according to claim 2, characterized in that: The wireless auxiliary flow device further includes a charging module, and the wireless auxiliary flow device charges the power module through the charging module.

9. The wireless sharing device according to claim 1, characterized in that: The first transmission module is a universal physical interface, and the second transmission module is a wireless transmission module.

10. A screen projection method for a wireless sharing device, characterized in that: Applied to the wireless auxiliary stream device, the wireless auxiliary stream device is communicatively connected with the terminal device; the wireless auxiliary stream device is wirelessly connected with the video conference host; The terminal device wirelessly communicates with the video conference host through the wireless sharing device to transmit audio and video data, and the method includes: Acquire the power of the power module to power the wireless sharing device so that the wireless sharing device is in a standby state, wherein the power module has a power supply mode and a charging mode; When the first transmission module is in communication connection with the terminal device, the wireless sharing device switches from a standby state to a working state; receiving audio and video data from the terminal device through the first transmission module, and transmitting the received audio and video data to the second transmission module; The received audio and video data is wirelessly sent to the video conferencing host through the second transmission module.

11. The screen projection method of the wireless sharing device according to claim 10, characterized in that: When the first transmission module is in communication connection with the terminal device, the first transmission module sends a first signal to the power module, and the power module switches to a charging mode after receiving the first signal.

12. The screen projection method of the wireless sharing device according to claim 10, characterized in that: After the first transmission module is connected to the terminal device for communication, the current power level of the power module is detected. When the current power level is lower than a preset threshold, the power module switches to a charging mode.

13. A screen projection system for a wireless auxiliary streaming device, characterized in that: The system includes a terminal device, a wireless sharing device and a video conference host, wherein: The wireless sharing device is communicatively connected with the terminal device; The wireless sharing device is wirelessly connected to the video conference host; The terminal device wirelessly communicates with the video conferencing host through the wireless sharing device to transmit audio and video data, and the wireless sharing device is the wireless sharing device according to any one of claims 1 to 9.

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