CN116170631A - Video camera integrated with wireless projection screen - Google Patents

Video camera integrated with wireless projection screen Download PDF

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Publication number
CN116170631A
CN116170631A CN202310149044.XA CN202310149044A CN116170631A CN 116170631 A CN116170631 A CN 116170631A CN 202310149044 A CN202310149044 A CN 202310149044A CN 116170631 A CN116170631 A CN 116170631A
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CN
China
Prior art keywords
module
video
audio
data
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310149044.XA
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Chinese (zh)
Inventor
刘忠勇
雷云斌
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Shenzhen Huawang Technology Co ltd
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Shenzhen Huawang Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Huawang Technology Co ltd filed Critical Shenzhen Huawang Technology Co ltd
Priority to CN202310149044.XA priority Critical patent/CN116170631A/en
Publication of CN116170631A publication Critical patent/CN116170631A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43076—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Abstract

A camera integrating wireless projection screen relates to the technical field of teleconferencing. The device comprises a main control module; an acquisition module; the screen throwing data analysis module; a wireless server module; a hybrid encoding module; a USB output module; an HDMI output module; the wireless server module is in communication with the screen throwing source in a wireless mode, receives the screen throwing data stream and transmits the screen throwing data stream to the screen throwing data analysis module, and the screen throwing data analysis module analyzes the screen throwing data stream into screen throwing audio and video data for subsequent direct output or mixed coding in the mixed coding module. By adopting the technical scheme, the user can select the USB output mode or the HDMI output mode by adjusting the setting of the camera, and can operate and output local audio and video and screen projection data streams in the conference system at the same time only by connecting the camera to external equipment through one data line, so that additional equipment is not required to be additionally arranged, the remote conference system is more convenient to use, and further popularization and application of remote conferences are facilitated.

Description

Video camera integrated with wireless projection screen
Technical Field
The invention relates to the technical field of teleconferencing, in particular to a camera integrating wireless projection.
Background
Cameras are indispensable devices in video conferencing applications, which are mainly responsible for capturing live video signals and converting them into digital signals for further processing by computer systems and video conferencing software. In addition, the common USB camera also integrates audio acquisition equipment at the same time, so that a user can meet the requirements for video and audio signal acquisition through one piece of equipment, and the USB camera is widely applied due to the characteristic that the USB camera is plug and play without additional software installation. However, in a conference scenario, a user generally needs to send a screen of a computer or a mobile phone to a large-screen display device, and besides being used for sharing a conference on site, the user needs to remotely share in a conference system to obtain better conference efficiency. The existing wireless screen-throwing solution can generally meet the requirement of local conference sharing, but in order to realize remote video conference sharing, special equipment or a system is required to be additionally configured, and in the process of carrying out the remote video conference, the screen-throwing data stream and the acquired local video stream are required to be respectively shared, so that plug and play cannot be realized, the convenience of use is reduced, and popularization and application of the remote video conference are not facilitated.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides the integrated wireless screen-throwing camera, a user can operate and output local audio and video and screen-throwing data streams in a conference system at the same time by connecting the camera to external equipment through one data line, and the use is more convenient and efficient.
In order to achieve the above purpose, the invention adopts the following technical scheme: a camera integrating wireless projection screen, comprising: a main control module; the acquisition module is connected with the main control module; the screen throwing data analysis module is connected with the main control module; the wireless server module is connected with the screen throwing data analysis module; the mixed coding module is respectively connected with the main control module, the acquisition module and the screen throwing data analysis module; the USB output module is connected with the hybrid coding module; the HDM I output module is connected with the screen-throwing data analysis module; the system comprises a wireless server side module, a wireless network module, a screen projection data analysis module, a hybrid coding module, a USB output module and an HDM I output module, wherein the acquisition module is used for acquiring local audio and video data and transmitting the local audio and video data to the hybrid coding module, the wireless server side module is used for receiving a screen projection data stream sent by a screen projection source, the screen projection data analysis module is used for analyzing the screen projection data stream into screen projection audio and video data, the hybrid coding module is used for carrying out hybrid coding on the screen projection audio and video data and the local audio and video data and then transmitting the encoded data to the USB output module, and the HDM I output module is used for outputting the screen projection audio and video data.
The invention further provides that the communication protocol between the wireless server module and the screen-throwing source is one of Ai rP l ay, mi racast, DLNA and private customized protocol.
The invention further provides that the screen projection data analysis module comprises a video data analysis module and an audio data analysis module, wherein the video data analysis module is used for analyzing the screen projection video data, and the audio data analysis module is used for analyzing the screen projection audio data.
The invention further provides that the acquisition module comprises a video acquisition module and an audio acquisition module, wherein the video acquisition module is used for acquiring local video stream data, and the audio acquisition module is used for acquiring local audio stream data.
The invention further provides that the hybrid coding module comprises a video hybrid coding module and an audio hybrid coding module, wherein the video hybrid coding module is used for performing hybrid coding on video stream data, and the audio hybrid coding module is used for performing hybrid coding on audio stream data. USB output module
The invention further provides that the hybrid coding module comprises a hybrid screen controller, and the hybrid screen controller is used for synthesizing audio and video data with specified specifications under the control of the main control module. HDMI output module
The invention is further provided with the remote control module, and the remote control module is used for receiving the instruction sent by the remote controller.
After the technical scheme is adopted, the invention has the beneficial effects that: the video camera can receive the screen projection data stream sent by the screen projection source through the wireless service end module and analyze the screen projection data stream into screen projection audio/video data, the function of mixed coding output or direct output of the screen projection audio/video data is completed according to the setting of the video camera, the use requirement of a meeting under various scenes is met, a user can select to output the mixed coding audio/video data through the USB output module or output the screen projection audio/video data of the screen projection through the HDM I output module only through one data line, the video camera is connected to external equipment only through one data line, the local audio/video and the screen projection data stream can be simultaneously operated or output in the conference system, the video camera can be inserted and used at once, additional equipment is not needed, the video camera is more convenient to use, and the video camera is beneficial to further popularization and application of a remote conference.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic diagram showing the effect of the present invention in hybrid encoding of picture data.
Reference numerals illustrate: 1. a main control module; 2. a wireless server module; 31. a video acquisition module; 32. an audio acquisition module; 4. the screen throwing data analysis module; 51. a video hybrid coding module; 52. an audio mixing encoding module; 61. a USB output module; 62. an HDM I output module; 7. a remote controller; 81. a host device; 82. a display device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and those skilled in the art can make modifications to the present embodiment which do not contribute to the invention as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.
The embodiment relates to an integrated wireless screen-throwing camera, as shown in fig. 1, the system mainly comprises a main control module 1, a wireless server module 2, an acquisition module, a screen-throwing data analysis module 4, a hybrid coding module and an output module, wherein the main control module 1, the wireless server module 2, the acquisition module, the screen-throwing data analysis module 4, the hybrid coding module and the output module are arranged in a camera host, and the output module comprises a USB output module 61 and an HDMI output module 62. The main control module 1 is connected with the acquisition module, the screen-throwing data analysis module 4 and the hybrid coding module, and has the main function of sending instructions according to the settings to control a plurality of modules described below. The acquisition module has the functions of video recording, sound recording and the like, and is used for acquiring local audio and video data and transmitting the local audio and video data to the hybrid coding module. The wireless server module 2 is connected with the screen projection data analysis module 4, and is in communication with the screen projection source in a wireless mode, receives the screen projection data stream transmitted by the screen projection source, and transmits the screen projection data stream to the screen projection data analysis module 4. The wireless service end module 2 and the screen throwing source can adopt standard or private customized protocols such as Ai rP l ay, mi racast and DLNA to carry out data transmission, and then the wireless service end module 2 transmits the received screen throwing data stream to the screen throwing data analysis module 4 through the internal circuit of the camera. The screen-projection data parsing module 4 is connected to the hybrid encoding module and the HDM I output module 62, and parses the screen-projection data stream into screen-projection audio/video data for subsequent hybrid encoding or direct output after receiving the screen-projection data stream. The mixed coding module is respectively connected with the screen-throwing data analysis module 4, the USB output module 61 and the acquisition module, and under the control of the main control module 1, the mixed coding module performs mixed coding on the screen-throwing audio and video data and the local audio and video data according to the specification appointed by the main control module 1, and then transmits the mixed coding audio and video data to the USB output module 61. According to different user settings, the user can select to output the mixed audio and video data through the USB output module or output the screen-throwing audio and video data of the screen through the HDMI output module, and the local audio and video and the screen-throwing data stream can be simultaneously operated and output in the conference system only by connecting the camera to external equipment through one data line, so that additional equipment is not needed, the use is more convenient, and the remote conference is further promoted and applied.
The output modules are divided into a USB output module 61 and an HDMI output module 62, and the working mode of the video camera is also divided into a USB output mode and an HDMI output mode. The USB output module 61 is connected with the hybrid coding module, and the HDMI output module 62 is connected with the screen projection data analysis module 4. The USB output module 61 is used for connecting to the host device 81 and transmitting the mixed audio/video data to the host device 81. The screen data interface is used for connecting the display device 82 and transmitting the screen audio and video data to the display device 82. In this embodiment, the USB output module 61 adopts a USB interface, which has strong versatility. The HDMI output module 62 employs HDMI interfaces in this embodiment, and may employ VGA, DVI, or the like in other embodiments. The main control module 1 can change different working modes and switch between a USB output mode and an HDMI output mode.
When the working mode is USB output, the main control module 1 controls the screen-throwing data analysis module 4 to transmit the screen-throwing audio and video module to the hybrid coding module, meanwhile, the main control module 1 controls the acquisition module and the hybrid coding module to start working, the acquisition module transmits the local audio and video stream data to the hybrid coding module, the hybrid coding module carries out hybrid coding on the local audio and video stream data and the screen-throwing audio and video data, the picture is synthesized into a specified specification layout according to the setting of the screen-mixing mode of the main control module 1, and then the audio and video data after the hybrid coding is transmitted to the USB output module and is output to the external host equipment 81, so that the further processing of a computer system and video conference software is facilitated.
When the working mode is HDMI output, the main control module 1 controls the acquisition module and the hybrid coding module to stop working, and controls the screen-throwing data analysis module 4 to directly transmit the screen-throwing audio and video data obtained through analysis to the HDMI output module, and output the screen-throwing audio and video data to the external display device 82, so that the screen-throwing data is convenient for meeting personnel to check.
Specifically, the acquisition module in this embodiment includes a video acquisition module 31 and an audio acquisition module 32, both of which are controlled by the main control module 1 to determine whether to start up, when the start up is needed, local audio/video data will be acquired, and when the start up is not needed, whether to start up is not needed. The video acquisition module 31 is used for acquiring local video stream data to complete a camera shooting function, and the audio acquisition module 32 is used for acquiring local audio stream data to complete a recording function. The collected video stream and audio stream are respectively transmitted to the mixed coding module, and the video stream and the audio stream can be selectively edited, such as volume adjustment, according to the setting of the main control module 1. Correspondingly, the screen projection data analysis module 4 also comprises a video data analysis module and an audio data analysis module, wherein the video data analysis module analyzes the screen projection video data, and the audio data analysis module analyzes the screen projection audio data.
Similarly, the hybrid coding module includes a video hybrid coding module 51 and an audio hybrid coding module 52. The video hybrid encoding module 51 is connected to the video data parsing module and the video acquisition module 31, and performs hybrid encoding on the local video data and the screen video data. The audio hybrid coding module 52 is connected to the audio data parsing module and the audio acquisition module 32, and performs hybrid coding on the local audio data and the projection audio data. The video hybrid coding module 51 and the audio hybrid coding module 52 are controlled by the main control module 1 to start up or not, and when the hybrid audio/video data needs to be output, the main control module 1 controls the video hybrid coding module 51 and the audio hybrid coding module 52 to work so as to perform hybrid coding. When the user needs to output the screen-throwing audio and video data, the main control module 1 controls the screen-throwing audio and video data to stop working.
The mixed coding module also comprises a mixed screen controller, and can synthesize the screen-throwing audio and video data and the local audio and video stream data into mixed coding audio and video data with specified specifications according to the instruction of the main control module 1. The main control module 1 sends out instructions according to the mixed screen mode set by the user, the mixed coding module can synthesize pictures into picture-in-picture, single screen, split screen and other layouts, as shown in fig. 2, and then the mixed video data is transmitted to the output module.
In addition, the main control module 1 is further provided with a remote control module, the remote control module is correspondingly provided with a remote controller 7, and can receive control commands sent by the remote controller 7 in a wireless mode, so that a user can conveniently control the video camera, the efficiency of a conference is improved, and the use experience of the user is optimized.
The working principle of the invention is approximately as follows: the camera host is internally provided with a main control module 1, a wireless server module 2, an acquisition module, a screen projection data analysis module 4, a hybrid coding module, a USB output module and an HDMI output module. The wireless server module 2 communicates with the screen throwing source in a wireless mode, receives the screen throwing data stream and transmits the screen throwing data stream to the screen throwing data analysis module 4, the screen throwing data stream is analyzed into screen throwing audio and video data in the screen throwing data analysis module 4, and then according to the setting of a user, the mixed audio and video data is output through the USB output module or the screen throwing audio and video data of the screen throwing is output through the HDMI output module, and the local audio and video and the screen throwing data stream can be simultaneously output in the conference system only by connecting a video camera to external equipment through one data line, so that additional equipment is not needed, the use is more convenient, and the further popularization and application of a remote conference are facilitated.
The above description is only for the purpose of illustrating the technical solution of the present invention and not for the purpose of limiting the same, and other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims (7)

1. A camera for integrating wireless projection, comprising:
a main control module (1);
the acquisition module is connected with the main control module (1);
the screen-throwing data analysis module (4), wherein the screen-throwing data analysis module (4) is connected with the main control module (1); the wireless server module (2) is connected with the screen projection data analysis module (4); the mixed coding module is respectively connected with the main control module (1), the acquisition module and the screen projection data analysis module (4);
the USB output module (61), the said USB output module (61) is connected with said mixing the encoding module;
the HDMI output module (62), the HDMI output module (62) is connected with the screen projection data analysis module (4);
the system comprises an acquisition module, a wireless server module (2), a screen projection data analysis module (4), a USB output module (61) and an HDMI output module (62), wherein the acquisition module is used for acquiring local audio and video data and transmitting the local audio and video data to the hybrid coding module, the wireless server module (2) is used for receiving a screen projection data stream sent by a screen projection source, the screen projection data analysis module (4) is used for analyzing the screen projection data stream into screen projection audio and video data, the hybrid coding module is used for carrying out hybrid coding on the screen projection audio and video data and the local audio and video data and then transmitting the encoded data to the USB output module (61), and the HDMI output module (62) is used for outputting the screen projection audio and video data.
2. The integrated wireless video camera of claim 1, wherein the communication protocol of the wireless server module (2) with the video source is one of AirPlay, miracast, DLNA and proprietary custom protocols.
3. The integrated wireless video camera of claim 1, wherein the video data parsing module (4) includes a video data parsing module for parsing video data and an audio data parsing module for parsing audio data.
4. The integrated wireless video camera of claim 1, wherein the acquisition module comprises a video acquisition module (31) and an audio acquisition module (32), the video acquisition module (31) being configured to acquire local video stream data, the audio acquisition module (32) being configured to acquire local audio stream data.
5. The integrated wireless video camera of claim 1, wherein the hybrid coding module comprises a video hybrid coding module (51) and an audio hybrid coding module (52), the video hybrid coding module (51) being configured to hybrid code video stream data, and the audio hybrid coding module (52) being configured to hybrid code audio stream data. USB output module.
6. The integrated wireless video camera of claim 1, wherein the hybrid encoding module comprises a hybrid controller for synthesizing audio and video data of specified specifications under the control of the main control module (1). The HDMI output module is HDMI output module.
7. The integrated wireless projection camera according to claim 1, wherein the main control module (1) is provided with a remote control module, and the remote control module is used for receiving instructions sent by a remote controller (7).
CN202310149044.XA 2023-02-03 2023-02-03 Video camera integrated with wireless projection screen Pending CN116170631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310149044.XA CN116170631A (en) 2023-02-03 2023-02-03 Video camera integrated with wireless projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310149044.XA CN116170631A (en) 2023-02-03 2023-02-03 Video camera integrated with wireless projection screen

Publications (1)

Publication Number Publication Date
CN116170631A true CN116170631A (en) 2023-05-26

Family

ID=86417937

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310149044.XA Pending CN116170631A (en) 2023-02-03 2023-02-03 Video camera integrated with wireless projection screen

Country Status (1)

Country Link
CN (1) CN116170631A (en)

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