CN110248131B - Screen projector simulating USB camera and conference system - Google Patents
Screen projector simulating USB camera and conference system Download PDFInfo
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- CN110248131B CN110248131B CN201910396883.5A CN201910396883A CN110248131B CN 110248131 B CN110248131 B CN 110248131B CN 201910396883 A CN201910396883 A CN 201910396883A CN 110248131 B CN110248131 B CN 110248131B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- 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
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- 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
- H04N7/155—Conference systems involving storage of or access to video conference sessions
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention provides a screen projector and a system for simulating a USB camera, wherein the screen projector for simulating the USB camera comprises a wireless processing module, an audio and video processing module, a UVC protocol conversion module, a USB interface and an audio interface; a screen projector system based on a simulated USB camera comprises a screen projector simulated as a USB camera, a local conference terminal, a conference system server and a remote conference terminal; after the screen projector is connected with a USB interface of a local conference terminal, mobile equipment of external personnel can be wirelessly connected with the screen projector, the screen projector transmits content to a screen connected with the local conference terminal through an analog camera, and meanwhile, other participants can open conference system terminal software on the conference terminal through a network to remotely watch the content shared by the external personnel; through the mode, the outsiders do not need to be connected with the internal network of the company, and great convenience can be brought to the participants for the screen sharing of the outsiders while the safety of the internal network of the company is guaranteed.
Description
Technical Field
The invention belongs to the technical field of video conferences, and particularly relates to a screen projector simulating a USB camera and a conference system.
Background
When a traditional conference system encounters a scene where an alien person demonstrates computer data, the traditional conference system usually requires that the alien person computer is connected with a local display screen through a wire to display the content on the screen of the alien person computer on the local display screen. Most of the traditional modes have much inconvenience, on one hand, wired connection is easily affected by a place, and on the other hand, if remote personnel need to participate, screen contents shared by external personnel cannot be seen. Certainly, the conference system can also be started or connected with an internal conference system of the company by an external personal computer, which is premised that the external personal computer is required to join the company network and run the conference system software, so that a lot of inconvenience is brought, and the network security problem also exists.
Disclosure of Invention
In order to solve the problems, the invention provides a screen projector which is simulated into a USB camera, can be wirelessly connected and is beneficial to internal network safety and a system thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a screen projector simulating a USB camera comprises a wireless processing module, an audio and video processing module, a UVC protocol conversion module, a USB interface and an audio interface;
the input end of the wireless processing module is wirelessly connected with external mobile equipment and is used for receiving audio and video data transmitted by the external mobile equipment;
the input end of the audio and video processing module is connected with the output end of the wireless processing module and is used for decoding received audio and video data;
the input end of the UVC protocol conversion module is connected with the first output end of the audio and video processing module and is used for packaging video data into UVC protocol format video data;
the USB interface is connected with the output end of the UVC protocol conversion module and is used for transmitting the UVC protocol format video data to a local conference terminal with an external USB interface;
and the audio interface is connected with the second output end of the audio and video processing module and is used for transmitting audio data to the local conference terminal.
Further, the audio interface is also provided with an external port for connecting an external speaker.
The wireless processing module is connected with the external mobile equipment through a built-in wireless receiving module.
The built-in wireless receiving module adopts a WiFi, Bluetooth, ZigBee or network module.
A conference system comprises a screen projector, a local conference terminal, a conference system server and a remote conference terminal, wherein the screen projector is simulated into a USB camera;
the input end of a screen projector of the analog USB camera is wirelessly connected with the external mobile equipment, and the output end of the screen projector is connected with the local conference terminal, and is used for receiving audio and video data shared by the external mobile equipment and transmitting the audio and video data to the local conference terminal;
the local conference terminal is used for transmitting the received audio and video data to the conference system server;
the conference system server input end is connected with the local conference terminal and used for receiving audio and video data transmitted by the local conference terminal, and the output end is connected with the remote conference terminal and used for sending the audio and video data.
Further, the local conference terminal is also used for transmitting the received audio and video data to the conference system server through a network.
The remote conference terminal is connected with the conference system server through a network and used for receiving the audio and video data transmitted by the conference system server through the network.
And the conference system server is also used for receiving the network data uploaded by the local conference terminal and the remote conference terminal and redistributing the network data to the local conference terminal and the remote conference terminal.
The invention has the beneficial effects that:
the screen projector can be simulated into a USB camera, after the screen projector is connected with a local conference terminal USB interface, mobile equipment of external personnel can transmit content to a screen connected with the local conference terminal through the screen projector in a wireless connection mode, and meanwhile, other participants can open conference system terminal software on the conference terminal through a network to remotely watch the screen content shared by the external personnel; through the mode, the external personnel do not need to be connected with the internal network of the company, and great convenience can be brought to the participants for the external personnel to share the screen while the safety of the internal network of the company is ensured.
Drawings
The following further describes embodiments of the present invention with reference to the drawings.
FIG. 1 is a schematic block diagram of a system of an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a screen projector according to an embodiment of the invention;
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings.
A screen projector simulating a USB camera comprises a wireless processing module 110, an audio and video processing module 120, a UVC protocol conversion module 130, a USB interface 140 and an audio interface 150; the input end of the wireless processing module 110 is wirelessly connected with an external mobile device and is used for receiving audio and video data transmitted by the external mobile device;
the input end of the audio/video processing module 120 is connected with the output end of the wireless processing module 110, and is used for decoding received audio/video data;
an input end of the UVC protocol conversion module 130 is connected to a first output end of the audio/video processing module 120, and is configured to encapsulate video data into UVC protocol format video data;
the USB interface 140 is connected to an output end of the UVC protocol conversion module 130, and is configured to transmit the UVC protocol format video data to a local conference terminal 200 having an external USB connection port;
the audio interface 150 is connected to a second output end of the audio/video processing module 120, and is configured to transmit audio data to the local conference terminal 200.
The simple working principle of the screen projector simulating the USB camera is as follows:
as shown in fig. 1, after the wireless processing module 110 receives audio and video data transmitted by an external mobile device through a built-in wireless receiving module, the received data is transmitted to the audio and video processing module 120, the audio and video processing module 120 extracts an audio file and a video file from the received audio and video data, the extracted audio file is transmitted to an external device capable of receiving audio through an audio interface 150, and the extracted video file is encapsulated into UVC protocol format video data through a UVC protocol conversion module 130 and then transmitted to a receiving device through a USB interface 140.
The audio interface 150 is further provided with an external connection port for connecting an external speaker in consideration of a failure or some special problem occurring in the audio device playing device. The audio interface 150 has a plurality of interfaces, and can connect other audio playing devices, such as earphones, sound equipment, and the like, while connecting the local conference terminal 200.
For the wireless connection problem, the wireless processing module 110 may be connected to an external mobile device through a built-in wireless receiving module to implement wireless data transmission; the built-in wireless receiving module adopts a market circulating product, and can adopt WiFi, Bluetooth, ZigBee or a network module and the like.
The invention also relates to a conference system, which comprises a screen projector 100 which is simulated into a USB camera, a local conference terminal 200, a conference system server 300 and a remote conference terminal 400;
the input end of the screen projector 100 which is simulated into the USB camera is wirelessly connected with the external mobile equipment, and the output end of the screen projector is connected with the local conference terminal 200, and is used for receiving audio and video data shared by the external mobile equipment and transmitting the audio and video data to the local conference terminal 200;
the local conference terminal 200 is configured to transmit the received audio/video data to the conference system server 300;
the conference system server 300 has an input end connected to the local conference terminal 200 for receiving the audio and video data transmitted by the local conference terminal 200, and an output end connected to the remote conference terminal 400 for transmitting the audio and video data.
The local conference terminal 200 is further configured to transmit the received audio/video data to the conference system server 300 through a network. The remote conference terminal 400 is connected to the conference system server 300 through a network, and is configured to receive audio and video data transmitted by the conference system server 300 through the network. The conference system server 300 is further configured to receive network data uploaded by the local conference terminal 200 and the remote conference terminal 400, and redistribute the network data to the local conference terminal 200 and the remote conference terminal 400.
The brief working process of the conference system is as follows:
as shown in fig. 2, after a smart phone, a PAD, and a notebook computer carried by an alien person are connected to a local screen projector through wireless screen projection protocols such as Miracast, Airplay, and the like, audio and video data in a mobile device carried by the alien person can be shared with the screen projector 100 which is connected to a local conference terminal 200 and is simulated as a USB camera; because the screen projector 100 simulating the USB camera functions, the local conference terminal 200 may default to the installed camera, and the local conference terminal 200 may view the video data shared by the screen projector 100 simulating the USB camera through software with a UVC protocol, and meanwhile, the local conference terminal 200 may upload the video data to the conference system server 300 through the network, and redistribute the video data to the local conference terminal 200 or the remote conference terminal 400 through the server conference system.
Specifically, the local conference terminal 200 and the remote conference terminal 400 both have a function of receiving and transmitting data with the conference system service terminal through a network;
through the composite use of the local conference terminal 200, the remote conference terminal 400 and the conference system server 300, data sharing between any conference terminals can be realized, and the local conference terminal 200 and the remote conference terminal 400 can be used as each other.
In addition, considering the factors of conference security, simplicity in use and the like, the local conference terminal 200 and the remote conference terminal 400 can enable other participants to view screen contents shared by external people by connecting the conference system through a network anywhere by opening conference system terminal software (such as teadview or an internal conference system of a company) so as to better achieve the purpose of ensuring the internal network security of the company.
The external mobile equipment can be a mobile phone, a PAD (PAD application device) or a computer, and can also be other mobile equipment capable of achieving the same purpose; the wireless connection protocol can be realized by using Miracast and Airplay protocols, and other protocols capable of achieving the same purpose can also be adopted.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any technical means that can achieve the object of the present invention by basically the same means is within the scope of the present invention.
Claims (4)
1. A conference system is characterized by comprising a screen projector (100) which is simulated into a USB camera, a local conference terminal (200), a conference system server (300) and a remote conference terminal (400);
the input end of the screen projector (100) of the analog USB camera is wirelessly connected with external mobile equipment, and the output end of the screen projector is connected with the local conference terminal (200) and used for receiving audio and video data shared by the external mobile equipment and transmitting the audio and video data to the local conference terminal (200);
the local conference terminal (200) is used for transmitting the received audio and video data to the conference system server (300);
the input end of the conference system server (300) is connected with the local conference terminal (200) and used for receiving audio and video data transmitted by the local conference terminal (200), and the output end of the conference system server is connected with the remote conference terminal (400) and used for sending the audio and video data;
the conference system server (300) is further configured to receive network data uploaded by the local conference terminal (200) and the remote conference terminal (400) through a network, and redistribute the network data to the local conference terminal (200) and the remote conference terminal (400);
the screen projector (100) simulating the USB camera comprises a wireless processing module (110), an audio and video processing module (120), a UVC protocol conversion module (130), a USB interface (140) and an audio interface (150);
the input end of the wireless processing module (110) is wirelessly connected with external mobile equipment and is used for receiving audio and video data transmitted by the external mobile equipment;
the input end of the audio and video processing module (120) is connected with the output end of the wireless processing module (110) and is used for decoding received audio and video data;
the input end of the UVC protocol conversion module (130) is connected with the first output end of the audio and video processing module (120) and is used for packaging video data into UVC protocol format video data; the USB interface (140) is connected with the output end of the UVC protocol conversion module (130) and is used for transmitting the UVC protocol format video data to a local conference terminal with an external USB interface;
the audio interface (150) is connected with a second output end of the audio/video processing module (120) and is used for transmitting audio data to the local conference terminal;
the wireless processing module (110) is connected with the external mobile equipment through a built-in wireless receiving module;
the built-in wireless receiving module adopts WiFi, Bluetooth, ZigBee or a network module;
when the wireless processing module (110) receives audio and video data transmitted by external mobile equipment through a built-in wireless receiving module, the received data are transmitted to the audio and video processing module (120), the audio and video processing module (120) extracts audio files and video files from the received audio and video data, the extracted audio files are transmitted to external equipment capable of receiving audio through an audio interface (150), and the extracted video files are packaged into UVC protocol format video data through a UVC protocol conversion module (130) and then transmitted to the receiving equipment through a USB interface (140);
after a smart phone, a PAD and a notebook computer carried by an external person are connected with the local screen projector through a wireless screen projecting protocol, audio and video data in mobile equipment carried by the external person can be shared to the screen projector (100) which is connected with a local conference terminal (200) and is simulated into a USB camera; because the screen projector (100) simulating the USB camera simulates the function, the camera is installed in the local conference terminal (200) by default, the local conference terminal (200) can watch the video data shared by the screen projector (100) simulating the USB camera through software with a UVC protocol, and meanwhile, the local conference terminal (200) can upload the video data to the conference system server (300) through the network and redistribute the video data to the local conference terminal (200) or the remote conference terminal (400) through the server conference system.
2. Conference system according to claim 1, characterized in that the audio interface (150) is also used for connecting external loudspeakers.
3. A conferencing system according to claim 1, wherein: the local conference terminal (200) is further configured to transmit the received audio/video data to the conference system server (300) through a network.
4. A conferencing system according to claim 1, wherein: the remote conference terminal (400) is connected with the conference system server (300) through a network and is used for receiving audio and video data transmitted by the conference system server (300) through the network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396883.5A CN110248131B (en) | 2019-05-14 | 2019-05-14 | Screen projector simulating USB camera and conference system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396883.5A CN110248131B (en) | 2019-05-14 | 2019-05-14 | Screen projector simulating USB camera and conference system |
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| CN110248131A CN110248131A (en) | 2019-09-17 |
| CN110248131B true CN110248131B (en) | 2022-05-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114007035B (en) * | 2021-09-24 | 2023-12-26 | 深圳壹秘科技有限公司 | Conference data sharing system and method |
| CN114584738A (en) * | 2022-05-06 | 2022-06-03 | 深圳市飞图视讯有限公司 | Camera sharing method and device, terminal equipment and storage medium |
| WO2025054929A1 (en) * | 2023-09-14 | 2025-03-20 | 广州视臻信息科技有限公司 | Video transmission method, conference system, and storage medium |
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| CN103002445A (en) * | 2012-11-08 | 2013-03-27 | 张维加 | Safe mobile electronic equipment for providing application services |
| CN105959613A (en) * | 2016-05-27 | 2016-09-21 | 山西百得科技开发股份有限公司 | Digital conference equipment and system |
| US20170048486A1 (en) * | 2013-03-14 | 2017-02-16 | Polycom, Inc. | Immersive telepresence anywhere |
| CN206442460U (en) * | 2017-01-25 | 2017-08-25 | 南京美乐威电子科技有限公司 | A kind of Portable HDMI video capture device based on FPGA |
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2019
- 2019-05-14 CN CN201910396883.5A patent/CN110248131B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002445A (en) * | 2012-11-08 | 2013-03-27 | 张维加 | Safe mobile electronic equipment for providing application services |
| US20170048486A1 (en) * | 2013-03-14 | 2017-02-16 | Polycom, Inc. | Immersive telepresence anywhere |
| CN105959613A (en) * | 2016-05-27 | 2016-09-21 | 山西百得科技开发股份有限公司 | Digital conference equipment and system |
| CN206442460U (en) * | 2017-01-25 | 2017-08-25 | 南京美乐威电子科技有限公司 | A kind of Portable HDMI video capture device based on FPGA |
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