CN109068090B - Wireless video conference system - Google Patents
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- CN109068090B CN109068090B CN201811191108.8A CN201811191108A CN109068090B CN 109068090 B CN109068090 B CN 109068090B CN 201811191108 A CN201811191108 A CN 201811191108A CN 109068090 B CN109068090 B CN 109068090B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1827—Network arrangements for conference optimisation or adaptation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
Abstract
The invention discloses a wireless video conference system, which comprises a camera terminal, a recording terminal, an intelligent holder, a control terminal and a decoding terminal, wherein the control terminal coordinately controls each terminal in a distributed manner and controls and distributes each terminal task of the system; the method comprises the following steps that a camera terminal collects video data of a local meeting place and sends the video data to an intelligent holder and a control terminal; the recording terminal collects audio data of a local meeting place and sends the audio data to the intelligent cloud deck and the control terminal; the intelligent cloud deck analyzes audio data based on a sound source positioning technology and positions the position of a current speaker in a local conference place; analyzing video data based on a face recognition technology, and tracking and positioning the position of a current speaker in a local conference room; the intelligent cloud deck outputs a control instruction according to the position of the current speaker in the local conference place; the camera terminal receives a control instruction of the intelligent holder, adjusts the camera angle to the position of the current speaker, and focuses or zooms according to the control instruction. The wireless video conference system controls the participants to enter the picture, displays the current speaker in the picture in the middle, and adjusts the picture size without distortion, thereby improving the picture quality and the audio effect.
Description
Technical Field
The invention relates to a wireless video conference system.
Background
A video conference system, also called a video conference system, refers to a system device that is used by individuals or groups in two or more different places to transmit audio, video and document data to each other through a transmission line and multimedia devices, so as to achieve real-time and interactive communication and achieve the purpose of conference. The video conference is similar to a mobile phone video telephone, people who talk with the video conference can be seen, the language communication can be carried out, the expressions and the actions of the people can be seen, and people in different places can communicate in the same room. At present, an image acquisition camera, a control center, display equipment and the like of a video conference system are all fixed, a large number of data lines, control lines, power lines and the like need to be linked, the image definition is extremely low, the problems can cause the problems that the conference participants are not in image pictures and the image quality is extremely low when participating in a conference, meanwhile, the conference system needs to be installed and maintained by professional technicians, the equipment is not convenient to move, and social resources are wasted due to the use of the conference system.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a wireless video conference system, which controls the participants to enter the picture, displays the current speaker in the picture in the middle and adjusts the picture size without distortion, thereby improving the picture quality and the audio effect.
In order to solve the above technical problem, the present invention provides a wireless video conference system, which includes a plurality of terminals, each of the terminals being provided with a wireless communication module for wirelessly transmitting and communicating between the terminals.
In a preferred embodiment of the present invention, the system further comprises a control terminal and one or more decoding terminals; the control terminal coordinates and controls each terminal in a distributed manner;
the control terminal packs local meeting place data and distributes the data to one or more remote meeting places; the control terminal receives remote meeting place data sent by one or more remote meeting places in a packaged mode;
the control terminal encodes the local meeting place data and the remote meeting place data according to the quantity configured by the decoding terminals, and distributes and sends the encoded data to one or more decoding terminals;
and the decoding terminal receives the data sent by the control terminal, decodes and outputs the video data, the audio data and the shared data of the remote meeting place and the video data and the shared data of the local meeting place.
In a preferred embodiment of the invention, the intelligent cradle head further comprises a camera terminal, a recording terminal and an intelligent cradle head;
the camera terminal collects video data of a local meeting place and sends the video data to the intelligent cloud deck;
the recording terminal collects audio data of a local meeting place and sends the audio data to the intelligent holder;
the intelligent cloud deck receives audio data of a local conference place, and analyzes the audio data of the local conference place based on a sound source positioning technology so as to position the position of a current speaker in the local conference place;
the intelligent cloud deck receives video data of a local conference place, and analyzes the video data of the local conference place based on a face recognition technology so as to track and position the position of a current speaker of the local conference place;
the intelligent cloud deck outputs a control instruction according to the position of the current speaker in the local conference place; the camera terminal receives a control instruction of the intelligent holder, adjusts the camera angle to the position of the current speaker, and focuses or zooms according to the control instruction.
In a preferred embodiment of the present invention, after the camera terminal adjusts the camera angle, the current speaker is displayed in the video frame in the middle; and after the camera terminal is triggered to focus or/and zoom, the current speaker is displayed in a video picture at a ratio of 1: 1.
In a preferred embodiment of the present invention, the control terminal further receives audio data and video data of the local conference room to the remote conference room, and receives audio data and video data of the remote conference room sent by the remote conference room in a packet manner;
the control terminal filters the far-end conference site audio data mixed in the local conference site audio data and outputs the audio data for packaging and sending to the far-end conference site;
the camera terminal receives the far-end meeting place audio data sent by the control terminal and forwards the far-end meeting place audio data to the intelligent holder; the intelligent cloud deck filters the far-end meeting place audio data mixed in the local meeting place audio data and outputs the audio data for sound source positioning.
In a preferred embodiment of the present invention, the control terminal is in wireless transmission communication with the camera terminal and the sound recording terminal based on the wireless communication module, and the camera terminal and the sound recording terminal respectively send video data and audio data of the local meeting place to the control terminal.
In a preferred embodiment of the present invention, the decoding terminal further receives the video data and audio data of the remote conference room sent by the control terminal, and the video data of the local conference room forwarded by the control terminal; and the video data and the audio data of the far-end meeting place and the video data of the local meeting place are decoded by the decoding terminal and then output at the local meeting place.
In a preferred embodiment of the present invention, the decoding terminal and the control terminal are configured to communicate wirelessly based on a wireless communication module.
In a preferred embodiment of the present invention, the camera terminal is further capable of acquiring 4k resolution data.
In a preferred embodiment of the present invention, the camera terminal is mounted on the intelligent cradle head, and the camera terminal and the intelligent cradle head transmit communication based on a USB interface.
In a preferred embodiment of the present invention, the recording terminal further includes a first recording terminal, a second recording terminal and a third recording terminal; the first recording terminal is installed on the intelligent holder and used for collecting local meeting place audio data used for sound source positioning; the recording terminal II is installed on the control terminal and used for acquiring audio data of a local meeting place; and the recording terminal III is configured on the current speaker and used for collecting audio data of a local meeting place.
Compared with the video conference system in the prior art, the wireless video conference system has the following technical advantages:
firstly, wireless transmission communication is carried out among all terminals of a video conference system based on a wireless communication module, a large number of data lines, control lines, power lines and the like which are linked in an original video conference are realized in a wireless control mode, and the speed and the quality of data transmission are greatly improved; meanwhile, by means of wireless control, fixed integrated installation, professional technical construction and special manual maintenance modes of the original conference system are changed, wireless portable installation and use greatly provide resource integration and utilization rate, and social resources are saved.
Secondly, the intelligent cradle head positions the position of the current speaker based on a sound source positioning technology, controls and adjusts the camera angle of the camera terminal, so that the current speaker is displayed in a camera image in the house, tracks and positions the current speaker in real time based on a face recognition technology, acquires continuous video data of the current speaker, controls and adjusts the parameter setting (including focusing or/and zooming) of the camera terminal, and adjusts the size of the image in a distortion-free 1:1 mode, so that the image quality and the audio effect of the video conference are improved.
Thirdly, the control terminal reasonably configures each terminal according to actual meeting place conditions and meeting place requirements, and controls each terminal in a distributed control mode, so that resources are reasonably distributed according to requirements, the resource utilization rate is improved, and the system building cost is reduced; meanwhile, the multi-module design is convenient to install and simple to expand, and the equipment recombination utilization rate can be improved.
Drawings
Fig. 1 is a block diagram of a wireless video conferencing system in a preferred embodiment of the present invention.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Examples
As shown in fig. 1, the embodiment discloses a wireless video conference system, which includes a camera terminal, a recording terminal, an intelligent pan-tilt, a control terminal, a decoding terminal, and an output terminal (video/audio player), where the control terminal implements management and control of distributed coordination work of the system, and controls and allocates tasks of each terminal of the system. All dispose wireless communication module on camera terminal, recording terminal, intelligent cloud platform, control terminal and the decoding terminal for wireless transmission communication.
Wherein, camera terminal installs on intelligent cloud platform, and in this embodiment technical scheme, above-mentioned camera terminal is optical camera, can gather 4k resolution ratio data, and its effective pixel is greater than 1600 ten thousand, and unit pixel size is greater than 3.8um, and the adjustment of zooming of image can the optics of lossing zoom.
The camera terminal and the intelligent cloud platform transmit communication based on the USB interface, and transmit video data of the local meeting place to the intelligent cloud platform. The camera terminal and the control terminal are in wireless transmission communication based on the wireless communication module, and the video data of the local meeting place are sent to the control terminal.
The recording terminal comprises a first recording terminal, a second recording terminal and a third recording terminal; the first recording terminal is installed on the intelligent cloud deck, and the audio data of the local meeting place for sound source positioning are sent to the intelligent cloud deck. The second recording terminal is installed on the control terminal, the third recording terminal is configured on the body of the current speaker, and both the second recording terminal and the third recording terminal are used for collecting local meeting place audio data sent to a remote meeting place; and the second recording terminal and the third recording terminal are in wireless transmission communication with the control terminal based on the wireless communication module, and the audio data of the local meeting place is sent to the control terminal.
In the technical scheme of this embodiment, a local conference room of the wireless video conference system may correspond to one or more remote conference rooms, and audio data and video data of the local conference room may be output in one or more remote conference rooms at the same time (referred to as "one-to-one" or "one-to-many"); the audio data and video data in one or more remote sites may be output simultaneously in the local site. The control terminal packs the audio data and the video data of the local meeting place and distributes the audio data and the video data to one or more remote meeting places; and the control terminal receives remote meeting place data sent by one or more remote meeting places in a packaged manner.
In the technical scheme of the embodiment, the wireless video conference system is provided with one or more decoding terminals, and the control terminal encodes local meeting place data and remote meeting place data according to the number configured by the decoding terminals; specifically, the data encoded by the control terminal includes: and the local conference place audio data, the remote conference place audio data and the local conference place shared data are subjected to echo removing processing. The control terminal distributes and transmits the encoded data to one or more decoding terminals. And the decoding terminal receives the data sent by the control terminal, decodes and outputs the video data, the audio data and the shared data of the remote meeting place and the video data and the shared data of the local meeting place.
Specifically, (1) when the local meeting place corresponds to a remote meeting place:
the local meeting place control terminal packs the audio data and the video data of the local meeting place and sends the audio data and the video data to the far-end meeting place, and the control terminal of the far-end meeting place receives the audio data and the video data of the local meeting place and then sends the audio data and the video data to the decoding terminal of the far-end meeting place to be decoded and then output in the far-end meeting place. And on the other hand, the control terminal of the local conference room receives the audio data and the video data of the remote conference room, and sends the audio data and the video data to the decoding terminal of the local conference room for decoding and outputting at the local conference room.
(2) When the local meeting place corresponds to a plurality of remote meeting places and the local meeting place is provided with one decoding terminal:
the local meeting place control terminal packs and distributes the audio data and the video data of the local meeting place to a plurality of remote meeting places, and the respective control terminals of the remote meeting places respectively receive the audio data and the video data of the local meeting place and then send the audio data and the video data to the decoding terminal of the remote meeting place to be decoded and then output in the remote meeting place. On the other hand, the plurality of remote meeting places respectively send respective audio data and video data to the local meeting place in a packaged manner, the control terminal of the local meeting place respectively receives the audio data and the video data of the plurality of remote meeting places, the audio data and the video data are decoded by a decoding terminal and then output and displayed on the same terminal, at the moment, the number of the corresponding remote meeting places on the display terminal is divided into display areas corresponding to the remote meeting places, and one display area displays a video picture of one remote meeting place.
(3) When the local conference room corresponds to a plurality of remote conference rooms and the local conference room is configured with a plurality of decoding terminals (the number of the local decoding terminals is at least the same as that of the remote conference rooms):
the local meeting place control terminal packs and distributes the audio data and the video data of the local meeting place to a plurality of remote meeting places, and the respective control terminals of the remote meeting places respectively receive the audio data and the video data of the local meeting place and then send the audio data and the video data to the decoding terminal of the remote meeting place to be decoded and then output in the remote meeting place. On the other hand, the plurality of remote meeting places respectively send respective audio data and video data to the local meeting place in a packaged manner, the control terminal of the local meeting place respectively receives the audio data and the video data of the plurality of remote meeting places, the control terminal of the local meeting place distributes the data of the plurality of remote meeting places to different terminal devices for decoding and outputting, and the video pictures of the plurality of remote meeting places are respectively displayed on different output terminals of the local meeting place.
A first recording terminal installed on the intelligent cloud deck collects audio data of a local meeting place and sends the audio data of the local meeting place to the intelligent cloud deck; and the camera terminal arranged on the intelligent cloud deck collects video data of the local meeting place and sends the video data of the local meeting place to the intelligent cloud deck. After receiving the audio data of the local meeting place, the intelligent cloud deck analyzes the audio data of the local meeting place based on a sound source positioning technology and positions the position of a current speaker of the local meeting place; the intelligent cloud deck acquires the position of a current speaker in a local meeting place, outputs a control instruction to adjust the pose and the camera shooting parameters of the camera shooting terminal, and the camera shooting terminal adjusts the camera shooting visual angle to the position of the current speaker according to the control instruction, so that the current speaker is displayed in the camera shooting picture of the camera shooting terminal in a centered mode; and adjusting parameter settings of the camera terminal, including focusing (adjusting definition) or/and zooming (zooming out or enlarging the picture), so that the current speaker is displayed in a 1:1 lossless picture in the video picture. After the intelligent cloud deck receives video data of a local conference room sent by the camera terminal, the video data of the local conference room are analyzed based on a face recognition technology, the position of a current speaker in the local conference room is tracked and positioned, and an instruction is output to continuously adjust the camera angle of the camera terminal so as to adopt continuous video data of the current speaker.
The camera terminal sends the video data of the local meeting place to the intelligent holder and simultaneously sends the continuous video data of the local meeting place to the control terminal. And the second recording terminal and the third recording terminal collect audio data of the local meeting place and then output and send the audio data to the control terminal. And the control terminal receives the audio data of the local meeting place sent by the recording terminal and sends the audio data to the remote meeting place for playing. After receiving the video data of the local meeting place, the control terminal outputs one path of video data to the local decoding terminal, and the video data is decoded by the decoding terminal and displayed in the local meeting place; and one output is sent to the remote meeting place and is displayed in the remote meeting place.
And the control terminal packs and sends the continuous video data and the continuous audio data of the local meeting place to the remote meeting place for playing and displaying.
Specifically, the control terminal receives video data of the local conference room sent by the camera terminal, receives audio data sent by the recording terminal, and packages the video data and the audio data of the local conference room and sends the packaged video data and audio data to the remote conference room. The control terminal receives the video data of the far-end meeting place and the audio data of the far-end meeting place and sends the video data of the far-end meeting place and the audio data of the far-end meeting place to the decoding terminal; the decoding terminal receives the video data of the far-end meeting place and the audio data of the far-end meeting place, and outputs the decoded video data and the decoded audio data in the local meeting place. And the decoding terminal receives the video data of the local conference place forwarded by the control terminal, decodes the video data and outputs the decoded video data in the local conference place.
According to the conference system, video data collected by a local conference place is displayed in the local conference place and also displayed in a remote conference place; in order to solve the technical problem, in the technical scheme of the embodiment, the control terminal sends the received audio data of the remote conference place to the camera terminal, and the camera terminal forwards the received audio data of the remote conference place to the intelligent cradle head; the intelligent tripod head receives the local conference place audio data sent by the first recording terminal and simultaneously receives the far-end conference place audio data forwarded by the camera terminal, filters noise and echo of the audio data which are mixed in the local conference place audio data and are sent to the local conference place and played by the far-end conference place, and outputs clean and noise-free audio data which are used for sound source positioning and have no echo. On the other hand, the control terminal also performs the same impurity removal processing on the audio data which are packaged and sent to the far-end meeting place, filters noise and echo of the audio data which are mixed in the audio data of the local meeting place and sent to the local meeting place for playing, and outputs clean noise-free and echo-free audio data which are used for being sent to the far-end meeting place, so that the picture effect and the sound quality effect of the conference system can be further improved.
In addition, in the technical scheme of the embodiment, the camera terminal is started or awakened by the control terminal, and the camera terminal acquires video data of the local meeting place according to the request of the control terminal; the control terminal starts, closes or awakens the intelligent cradle head through the camera terminal.
The operation process of the wireless video conference system is as follows:
in the initial state: the camera terminal, the recording terminal, the intelligent holder, the control terminal and the decoding terminal are all in a closed or dormant state.
Starting or waking up each device: the control terminal wakes up or starts the camera terminal, the recording terminal and the decoding terminal, and starts or wakes up the intelligent cloud deck by controlling the camera terminal.
Preparing system operation: the method comprises the steps that a camera terminal needs to control a terminal request, video data of a local meeting place are collected, a recording terminal needs to control the terminal request, audio data of the local meeting place are collected, the audio data and the video data of the local meeting place are sent to an intelligent cloud deck, the intelligent cloud deck analyzes the audio data of the local meeting place based on a sound source positioning technology, the position of a current speaker of the local meeting place is obtained, the video data of the local meeting place is analyzed based on a face recognition technology, the position of the current speaker of the local meeting place is tracked and positioned, a control instruction for controlling the camera terminal is output according to analysis results of the sound source positioning technology and the face recognition technology, and the camera angle and the camera parameters of the camera terminal are controlled and adjusted, so that the current speaker can be displayed in a video.
The system operates: the video data of the local meeting place are continuously collected by the camera terminal in real time, the audio data of the local meeting place are continuously collected by the sound recording equipment in real time, the video data and the audio data of the local meeting place are both sent to the control terminal, the control terminal packs the video data and the audio data of the local meeting place and sends the packed video data and the audio data to the far-end meeting place, and meanwhile, the video data of the local meeting place are decoded in the decoding terminal of the local meeting place and then output. The control terminal also receives video data and audio data sent by the far-end meeting place, the video data of the far-end meeting place is sent to a decoding terminal of the local meeting place to be decoded and then output in the local meeting place, and the audio data of the far-end meeting place is sent to the decoding terminal of the local meeting place to be decoded and then played in the local meeting place. And the audio data of the far-end meeting place is also sent to the intelligent holder for denoising and echo removing processing.
According to the wireless video conference system, each conference place is correspondingly provided with the control terminal, and data transmission is carried out among the control terminals on the basis of the Ethernet. The control terminal manages and controls all local equipment, monitors and sends conference requests, establishes conference links, and is responsible for sending and receiving video data and audio data of conference places.
In addition, the camera terminal, the recording terminal and the decoding terminal of the wireless video conference system are preferably communicated with the control terminal through wireless communication modules, and the speed and the quality of data transmission can be greatly improved compared with the traditional wired communication mode. However, in consideration of being suitable for most terminals at present, wired communication modules (preferably wired network cards) are also arranged on the camera terminal, the sound recording terminal decoding terminal and the control terminal and are used for wired transmission communication, and the current communication mode can be selected from two communication modes according to needs.
In addition, according to the wireless video conference system, one local conference place can correspond to one or more remote conference places to carry out video conference.
The wireless video conference system has the following technical advantages:
1. the participants are controlled to enter the picture, and the current speaker is displayed in the middle of the picture, so that the picture size can be adjusted without distortion.
2. The camera terminal, the recording terminal, the decoding terminal and the control terminal are in wireless transmission communication based on the wireless communication module, and the circuits such as a large number of data lines, control lines and power lines which are linked in the original video conference are efficiently realized in a cooperative parallel working mode among the units through a wireless management and control mode, so that the speed and the quality of data transmission are greatly improved.
3. Through the mode of wireless management and control, the fixed integrated installation, professional technical construction and the special personalized maintenance mode of the original conference system are changed, the wireless portable installation and use greatly provide resource integration and utilization rate, and social resources are saved.
4. The control terminal reasonably configures each terminal according to actual meeting place conditions and meeting place requirements, manages each terminal in a distributed control mode, reasonably integrates resource distribution according to needs, improves the resource utilization rate and reduces the system building cost; meanwhile, the multi-module design is convenient to install and simple to expand, and the equipment recombination utilization rate can be improved.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. A wireless video conferencing system comprising a plurality of terminals, characterized in that: each terminal is provided with a wireless communication module for wireless transmission communication among the terminals;
the system comprises a control terminal and one or more decoding terminals; the control terminal coordinates and controls each terminal in a distributed manner;
the control terminal packs local meeting place data and distributes the data to one or more remote meeting places; the control terminal receives remote meeting place data sent by one or more remote meeting places in a packaged mode;
the control terminal encodes the local meeting place data and the remote meeting place data according to the quantity configured by the decoding terminals, and distributes and sends the encoded data to one or more decoding terminals;
the decoding terminal receives the data sent by the control terminal, decodes and outputs the video data, the audio data and the shared data of the remote meeting place and the video data and the shared data of the local meeting place;
the intelligent cradle head comprises a camera terminal, a recording terminal and an intelligent cradle head;
the camera terminal collects video data of a local meeting place and sends the video data to the intelligent cloud deck;
the recording terminal collects audio data of a local meeting place and sends the audio data to the intelligent holder;
the intelligent cloud deck receives audio data of a local conference place, and analyzes the audio data of the local conference place based on a sound source positioning technology so as to position the position of a current speaker in the local conference place;
the intelligent cloud deck receives video data of a local conference place, and analyzes the video data of the local conference place based on a face recognition technology so as to track and position the position of a current speaker of the local conference place;
the intelligent cloud deck outputs a control instruction according to the position of the current speaker in the local conference place; the camera terminal receives a control instruction of the intelligent holder, adjusts a camera angle to the position of the current speaker, and focuses or/and zooms according to the control instruction;
the video data collected by the local meeting place is displayed in the local meeting place and also displayed in the remote meeting place, and the audio data collected by the local meeting place is only played in the remote meeting place;
the control terminal receives audio data and video data of a local meeting place to a remote meeting place and receives remote meeting place audio data and video data sent by the remote meeting place in a packaging mode;
the control terminal filters the far-end conference site audio data mixed in the local conference site audio data and outputs the audio data for packaging and sending to the far-end conference site;
the camera terminal receives the far-end meeting place audio data sent by the control terminal and forwards the far-end meeting place audio data to the intelligent holder; the intelligent cloud deck filters the far-end meeting place audio data mixed in the local meeting place audio data and outputs the audio data for sound source positioning;
the control terminal sends the received audio data of the remote meeting place to the camera terminal, and the audio data is forwarded to the intelligent holder by the camera terminal; the intelligent tripod head receives the local conference place audio data sent by the first recording terminal and simultaneously receives the far-end conference place audio data forwarded by the camera terminal, filters noise and echo of the audio data which are mixed in the local conference place audio data and are sent to the local conference place and played by the far-end conference place, and outputs clean and noise-free audio data which are used for sound source positioning and have no echo;
after the camera shooting visual angle is adjusted by the camera shooting terminal, the current speaker is displayed in the middle of the video picture; after the camera terminal is triggered to focus or/and zoom, the current speaker is displayed in a video picture in a ratio of 1: 1;
the control terminal is in wireless transmission communication with the camera terminal and the recording terminal based on the wireless communication module, and the camera terminal and the recording terminal respectively send video data and audio data of a local meeting place to the control terminal;
the recording terminal comprises a first recording terminal, a second recording terminal and a third recording terminal; the first recording terminal is installed on the intelligent holder and used for collecting local meeting place audio data used for sound source positioning; the recording terminal II is installed on the control terminal and used for acquiring audio data of a local meeting place; and the recording terminal III is configured on the current speaker and used for collecting audio data of a local meeting place.
2. The wireless video conferencing system of claim 1, wherein: the decoding terminal receives the far-end meeting place video data and the audio data sent by the control terminal and the local meeting place video data forwarded by the control terminal; and the video data and the audio data of the far-end meeting place and the video data of the local meeting place are decoded by the decoding terminal and then output at the local meeting place.
3. The wireless video conferencing system of claim 1 or 2, wherein: the camera terminal can acquire 4k resolution data.
4. The wireless video conferencing system of claim 1, wherein: the camera terminal is installed on the intelligent holder, and the camera terminal and the intelligent holder transmit communication based on the USB interface.
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| US8395653B2 (en) * | 2010-05-18 | 2013-03-12 | Polycom, Inc. | Videoconferencing endpoint having multiple voice-tracking cameras |
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| CN105744210B (en) * | 2016-04-15 | 2018-10-12 | 北京小米移动软件有限公司 | Echo cancel method, the apparatus and system of video conference |
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