CN105472309A - Data transmission method, device and system - Google Patents

Data transmission method, device and system Download PDF

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Publication number
CN105472309A
CN105472309A CN201511027876.6A CN201511027876A CN105472309A CN 105472309 A CN105472309 A CN 105472309A CN 201511027876 A CN201511027876 A CN 201511027876A CN 105472309 A CN105472309 A CN 105472309A
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distance
terminal
picture
data
picture data
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CN105472309B (en
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盛波
汤畅
孙喆
李泽文
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Huawei Technologies Co Ltd
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Hangzhou Huawei Digital Technologies Co Ltd
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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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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention discloses a data transmission method, device and system, and belongs to the technical field of computers. The data transmission method comprises the steps of obtaining first distance information of a first distance between an indicated conference terminal and a first conference participant terminal; generating a data request used for requesting for picture data corresponding to the first distance based on the first distance information, wherein the data request carries the first distance information; sending the data request used for requesting for the picture data corresponding to the first distance to a multipoint control unit MCU (Microcontroller Unit); receiving the picture data which come from the MCU and correspond to the first distance; and sending the picture data corresponding to the first distance to the first conference participant terminal. By adopting the data transmission method, device and system, the picture data displayed by each conference participant terminal can be more suitable for user demands.

Description

A kind of methods, devices and systems of transfer of data
Technical field
The present invention relates to field of computer technology, particularly a kind of methods, devices and systems of transfer of data.
Background technology
Along with the development of terminal technology, the application of terminal is more and more extensive, and function also from strength to strength.Wherein, video conference is one of function of commonly using of people.When carrying out video conference, the user in different meeting-place can by watching the video in other meeting-place during network implementation, and committee paper etc.
In the process of carrying out video conference, the video data of this locality can be sent to MCU (MultipointControlUnit by the conference terminal in multiple meeting-place, multipoint control unit), MCU then can process the video received, generate corresponding video, this video is sent to the conference terminal in each meeting-place, conference terminal can show this video by display device, and the user in each meeting-place then can see the video in other meeting-place.Each user conveniently in meeting-place watches video, user can use the mobile terminal such as mobile phone or panel computer (or being called participant's terminal) to establish a communications link with the conference terminal in affiliated meeting-place, the video received then can be sent to each mobile terminal by conference terminal, like this, user by the mobile phone of oneself or panel computer, can watch video.
User in meeting-place can synchronously watch the video identical with the video that display device shows by participant's terminal, but the picture shown sometimes repeats the waste that can cause equipment (participant's terminal), thus does not meet the demand of user.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of methods, devices and systems of transfer of data.Described technical scheme is as follows:
First aspect, provides a kind of method of transfer of data, and described method is performed by conference terminal, and described method comprises:
Obtain the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
The request of data for the picture data of asking described first distance corresponding is generated according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
The request of data of the described picture data for asking described first distance corresponding is sent to MCU;
Receive the picture data corresponding with described first distance from described MCU;
The described picture data corresponding with the first distance is sent to described first participant's terminal.
User, can the mobile terminal such as carrying mobile phone or panel computer (i.e. participant's terminal) in the process of participating in video conference.Participant's terminal can set up wireless connections with conference terminal, and the mode connected is diversified, such as, can be connected by network, also can be connected by ultrasonic wave pairing.Connect for ultrasonic wave pairing, conference terminal can send ultrasonic signal by the stereo set connected, ultrasonic signal can be received by the receiver of participant's terminal, then participant's terminal can detect conference terminal, and add its WLAN (wireless local area network) Wi-Fi (WirelessFidelity, Wireless Fidelity) network, thus realize the seamless link of conference terminal and mobile terminal.After participant's terminal (i.e. first participant's terminal) of certain user connects with conference terminal, conference terminal by distance detection part, can detect first participant's terminal and the range information of self.Conference terminal can send the request of data of the picture data for asking described first distance correspondence to MCU, for asking first range information that can carry the first distance in the request of data of picture data corresponding to described first distance, to obtain the picture data of the first picture composition type corresponding to the first distance, then the picture data got can be sent to first participant's terminal, after first participant's terminal receives this picture data, can show this picture data.
Based on above-mentioned process, conference terminal can send different picture datas to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
In conjunction with first aspect, in the first possibility implementation of this first aspect, described method also comprises: the first content type obtaining the content of the current display of described conference terminal, and described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
Can classify to the content of conference terminal display, obtain the content type of content, content type can comprise meeting-place video and document.Wherein, meeting-place video content can be the picture data that MCU generates, and the content of document can be the document data of video conference, as PPT and word etc.Conference terminal can obtain the content of current display, and then the content type (i.e. first content type) that this content is corresponding can be determined, then first content type can be added in the request of data of the picture data for asking described first distance corresponding, and this request of data can be sent to MCU.
Like this, in conjunction with the content of the current display of conference terminal, determine to need to be the picture data that first participant's terminal pushes, the picture data pushed can be made more to meet the demand of user.
May realize in conjunction with the first of first aspect or first aspect, may in implementation at the second of this first aspect, described the first range information obtaining the first distance of instruction conference terminal and first participant's terminal, comprising:
Ultrasonic signal is sent to described first participant's terminal;
Receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal;
According to the delivery time of described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
Distance detection part can be ultrasonic distance detection part of the prior art, and distance detection signal can be ultrasonic signal.After first participant's terminal and conference terminal connect, the distance detection part of conference terminal can send ultrasonic signal to conference terminal, and records this delivery time.After first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, conference terminal then can receive the ultrasonic signal feedback signal that first participant's terminal sends, and record the time of reception, and then the very first time that can calculate between delivery time and the time of reception is poor, according to this time difference, and hyperacoustic propagation velocity, calculate the first distance.
Like this, first can determine the distance level scale of participant's terminal, corresponding picture composition type is determined again according to the distance level scale of participant's terminal, without the need to storing the corresponding relation of each distance and picture composition type, the data volume that MCU stores can be reduced, meanwhile, the efficiency of the process of MCU can also be improved.
In conjunction with the second possibility implementation of first aspect, may in implementation at the third of this first aspect, carry described first participant's terminal in described ultrasound feedback signal and receive the delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal;
Time difference between the time of reception of the described delivery time according to described ultrasonic signal and described ultrasound feedback signal, determine described first range information, comprising:
Poor according to the described very first time, and described first participant's terminal receives the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal, determines described first distance.
Wherein, described second time difference is also carried in described ultrasound feedback signal.
When first participant's terminal receives ultrasonic signal, the current moment (namely receiving the time of reception of this ultrasonic signal) can be recorded, after first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, and the delivery time being ready for sending ultrasound feedback signal can be recorded, and then the time difference (i.e. the second time difference) of the two can be determined, and the second time difference can be added in ultrasound feedback signal, send.Second time difference can indicate first participant's terminal from received ultrasonic signal to the processing time sent ultrasound feedback signal.Conference terminal then can receive the ultrasonic signal feedback signal that first participant's terminal sends, and can resolve this ultrasonic signal feedback signal, obtain the second time difference wherein, then can deduct for the second time difference by very first time difference, obtain the difference of the two, i.e. after the propagation time of ultrasonic signal propagation time and ultrasonic signal feedback signal, then can according to this difference, and hyperacoustic propagation velocity, calculate the first distance.
Like this, the first distance between conference terminal and first participant's terminal can be calculated more accurately.
May implementation in conjunction with first aspect to the third of first aspect, in the 4th kind of possibility implementation of this first aspect, after described acquisition indicates the first range information of the first distance of described conference terminal and first participant's terminal, described method also comprises:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal, described second participant's terminal and described conference terminal establish a communications link;
When described second distance information is identical with described first range information, send the described picture data corresponding with the first distance to described second participant's terminal, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding.
Conference terminal can establish a communications link with second participant's terminal, and the second distance with second participant's terminal can be detected, conference terminal can judge that whether second distance information is identical with the first range information, if conference terminal judges that second distance information is identical with the first range information, then can send the picture data corresponding with the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Like this, after second participant's terminal and conference terminal establish a communications link, if the first meeting judges that second distance information is identical with the first range information eventually, picture data corresponding to the first distance can be sent directly to second participant's terminal, thus can treatment effeciency be improved.
May implementation in conjunction with first aspect to the third of first aspect, in the 5th kind of possibility implementation of this first aspect, after described acquisition indicates the first range information of the first distance of described conference terminal and first participant's terminal, described method also comprises:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal, described second participant's terminal and described conference terminal establish a communications link;
The request of data for asking picture data that described second distance is corresponding is sent to described MCU, described for asking the request of data of picture data corresponding to described second distance to carry described second distance information;
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
The described picture data corresponding with the first distance is sent, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
Conference terminal can establish a communications link with second participant's terminal, then the second distance of self and second participant's terminal can be detected, then request of data for asking picture data that described second distance is corresponding can be sent, for the second distance information of asking the request of data of picture data corresponding to described second distance to carry second distance to MCU.After MCU receives the request of data for asking picture data that described second distance is corresponding, can judge that whether second distance information is identical with the first range information, if MCU judges that second distance information is identical with the first range information, then MCU can send the feedback message of the request of data for asking picture data that described second distance is corresponding to conference terminal, and this feedback message can carry the first range information.Conference terminal can receive the feedback message from MCU, and feedback message can carry the first range information, and then conference terminal can judge that picture data that second distance is corresponding is as picture data corresponding to the first distance.Conference terminal can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Like this, if second distance information is identical with the first range information, then can send feedback message to conference terminal, send picture data without the need to repeating, thus the data volume of transmission can be reduced, save bandwidth.
May implementation to the 5th kind of first aspect in conjunction with first aspect, may in implementation at the 6th kind of this first aspect, described first range information comprises distance level scale corresponding to described first distance.
May implementation to the 6th kind of first aspect in conjunction with first aspect, may in implementation at the 7th kind of this first aspect, described method also comprises:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
After conference terminal determines the distance level scale that first participant's terminal is corresponding, can to first participant's terminal transmission range prompting message, the first range information that first participant's terminal is corresponding is carried in distance prompt message, first range information can be distance level scale, first participant's terminal then can receive this distance prompt message, then corresponding PUSH message can be shown, as " your present distance level scale is middle distance grade ".
May implementation to the 7th kind of first aspect in conjunction with first aspect, the first range information of the first distance of described acquisition instruction conference terminal and first participant's terminal, comprising:
When reaching default sense cycle, detect first range information of conference terminal relative to the first participant's terminal established a communications link with described conference terminal.
Can pre-set sense cycle in conference terminal, conference terminal when often reaching default sense cycle, can obtain the first range information of the first distance of instruction conference terminal and first participant's terminal.
Like this, if the position of first participant's terminal sends change, conference terminal can be known in time, and then can resend request of data, can see suitable picture video to make user.
Second aspect, provides a kind of method of transfer of data, and described method is performed by MCU, and described method comprises:
Receive the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal, and described conference terminal and described first participant's terminal establish a communications link;
According to the first corresponding relation of described first range information and range information and picture composition type, determine the first picture composition type that described first distance is corresponding;
According to described first picture composition type, generate the picture data that described first distance is corresponding;
Picture data corresponding to described first distance is sent, to make the picture data that described in described first participant's terminal demonstration, the first distance is corresponding to described conference terminal.
MCU can receive the request of data of the picture data for asking described first distance correspondence that conference terminal sends, and then can obtain this for asking the first range information in the request of data of the picture data of described first distance correspondence.Technical staff can arrange picture composition type corresponding to different distance in MCU.Different range informations and picture composition type can be carried out corresponding storage by MCU.MCU in the corresponding relation of range information and picture composition type, can search the first picture composition type that the first distance is corresponding, then the picture data of the first picture composition type can be sent to conference terminal.
In conjunction with second aspect, in the first possibility implementation of this second aspect, described first range information comprises distance level scale corresponding to described first distance.
In conjunction with the first possibility implementation of second aspect, in the second possibility implementation of this second aspect, described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described the first corresponding relation according to described first range information and range information and picture composition type, determine to comprise the first picture composition type that described first distance is corresponding:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, the picture data that at least one conference terminal beyond conference terminal gathers; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except described conference terminal gathers.
May implementation in conjunction with second aspect to the second of second aspect, may in implementation at the third of this second aspect, described according to described first picture composition type, generate the picture data that described first distance is corresponding, comprising:
According to described first picture composition type, obtain the picture data of at least one conference terminal display corresponding to described first picture composition type;
The picture data that at least one conference terminal corresponding according to described first picture composition type shows, obtains the picture data that described first distance is corresponding.
MCU can establish a communications link with multiple conference terminal, and can receive the video data that each conference terminal of establishing a communications link with MCU sends.In the video data that MCU can send at each conference terminal received, obtain the picture data of at least one conference terminal display corresponding to the first picture composition type, the picture data that at least one conference terminal corresponding according to the first picture composition type shows, obtains the picture data that the first distance is corresponding.
May implementation in conjunction with second aspect to the third of second aspect, in the 4th kind of possibility implementation of this second aspect, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document, and described first corresponding relation comprises the second corresponding relation of picture composition type and range information and content type;
Described according to described first range information, determine the first picture composition type that described first distance is corresponding, comprise: according to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
Range information, the content type of conference terminal and the corresponding relation of picture composition type can be prestored in MCU.Content type can comprise meeting-place video and document.For the situation that content type is meeting-place video, the content type of range information, conference terminal can be identical with above-mentioned corresponding relation with the corresponding relation of picture composition type, repeats no more; Be the situation of document for content type, the content type of range information, conference terminal and the corresponding relation of picture composition type can be: the document data that picture composition type corresponding to remote grade can show for conference terminal adds the picture composition type of the video data of document speaker; Picture composition type corresponding to middle distance grade can add the picture composition type of the video data of at least one conference terminal for document data, and the picture composition type that closely grade is corresponding is the picture composition type of the video data comprising at least one conference terminal.MCU can obtain first content type for asking the request of data of picture data corresponding to described first distance to be carried and the first range information, then can in the corresponding relation of the content type of above-mentioned range information, conference terminal and picture composition type, the picture composition type that inquiry is corresponding, to carry out subsequent treatment.
Like this, in conjunction with the data content of the current display of conference terminal, determine to need to be the picture data that first participant's terminal pushes, the picture data pushed can be made more to meet the demand of user.
May implementation to the 4th kind of second aspect in conjunction with second aspect, may in implementation at the 5th kind of this second aspect, described method also comprises:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal, and described conference terminal and described second participant's terminal establish a communications link;
If described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
Conference terminal can establish a communications link with second participant's terminal, then the second distance of self and second participant's terminal can be detected, then request of data for asking picture data that described second distance is corresponding can be sent, for the second distance information of asking the request of data of picture data corresponding to described second distance to carry second distance to MCU.After MCU receives the request of data for asking picture data that described second distance is corresponding, can judge that whether second distance information is identical with the first range information, if MCU judges that second distance information is identical with the first range information, then MCU can send the feedback message of the request of data for asking picture data that described second distance is corresponding to conference terminal, and this feedback message can carry the first range information.Conference terminal can receive the feedback message from MCU, and feedback message can carry the first range information, and then conference terminal can judge that picture data that second distance is corresponding is as picture data corresponding to the first distance.Conference terminal can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Like this, if second distance information is identical with the first range information, then can send feedback message to conference terminal, send picture data without the need to repeating, thus the data volume of transmission can be reduced, save bandwidth.
The third aspect, provides a kind of method of transfer of data, and described method is performed by conference terminal, and described method comprises:
Receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carrying the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Sending the request of data for the picture data of asking described second picture composition type corresponding to MCU, describedly carrying described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Receive the picture data corresponding with described second picture composition type from described MCU;
Described corresponding with the second picture composition type picture data is sent to described first participant's terminal.
User can in picture composition list of types, choose picture composition type, first participant's terminal then can send request of data for the picture data of asking the second picture composition type corresponding to conference terminal, for asking can to carry in the request of data of picture data corresponding to the second picture composition type the second picture composition type that user chooses.After conference terminal receives the request of data of the picture data for asking the second picture composition type corresponding, the second picture composition type of carrying in this request of data can be obtained, then the request of data for the picture data of asking the second picture composition type corresponding is sent to MCU, the second picture composition type is carried in this request of data, to obtain picture data corresponding to the second picture composition type, then the picture data of the second picture composition type can be sent to first participant's terminal, and stop sending picture data corresponding to the first picture composition type to first participant's terminal.First participant's terminal can show the picture data of the second picture composition type.
Like this, user according to the hobby of oneself, can choose the picture data of the picture composition type of wishing viewing.
Fourth aspect, provides a kind of method of transfer of data, and described method is performed by MCU, and described method comprises:
Receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carrying the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
According to described second picture composition type, generate the picture data that described second picture composition type is corresponding;
Picture data corresponding to described second picture composition type is sent to described conference terminal.
User in picture composition list of types, can choose picture composition type, and first participant's terminal then can send the 3rd request of data to conference terminal, can carry the second picture composition type that user chooses in the 3rd request of data.After conference terminal receives the 3rd request of data, the second picture composition type of carrying in the 3rd request of data can be obtained, then the request of data for the picture data of asking described second picture composition type corresponding is sent to MCU, the second picture composition type is carried in the request of data of picture data corresponding to described second picture composition type for asking, MCU can receive the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, then can to for asking the request of data of picture data corresponding to described second picture composition type to be resolved, obtain for asking the second picture composition type of carrying in the request of data of picture data corresponding to described second picture composition type, and then can according to described second picture composition type, generate the picture data that described second picture composition type is corresponding, then picture data corresponding to described second picture composition type can be sent to described conference terminal.
Like this, user according to the hobby of oneself, can choose the picture data of the picture composition type of wishing viewing.
5th aspect, provides a kind of conference terminal, and described conference terminal comprises processor, receiver and reflector, wherein:
Described processor, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
Described processor, also for generating the request of data for the picture data of asking described first distance corresponding according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
Described reflector, for sending the request of data of the described picture data for asking described first distance corresponding to MCU;
Described receiver, for receiving the picture data corresponding with described first distance from described MCU;
Described reflector, also for send to described first participant's terminal receive with described receiver described first apart from corresponding picture data.
In conjunction with the 5th aspect, the first in the 5th may in implementation, described processor, also for
Obtain the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
May implementation in conjunction with the first of the 5th aspect or the 5th aspect, the second in the 5th may in implementation, and described reflector is used for, and sends ultrasonic signal to described first participant's terminal;
Described receiver is used for, and receives from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal; Accordingly,
Described processor, for the delivery time according to described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
In conjunction with the second possibility implementation of the 5th aspect, the third in the 5th may in implementation, carries described first participant's terminal and receive the delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal in described ultrasound feedback signal;
Described processor, for:
Poor according to the described very first time, and described first participant's terminal receives the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal, determines described first distance.
May implementation in conjunction with the third of the 5th aspect to the 5th aspect, the 4th kind in the 5th may in implementation, described processor, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described reflector, time also for determining that described second distance information is identical with described first range information at described processor, the described picture data corresponding with the first distance is sent, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
May implementation in conjunction with the third of the 5th aspect, the 5th kind in the 5th may in implementation, described processor, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described reflector, also for:
The request of data for asking picture data that described second distance is corresponding is sent, the described second distance information obtained for asking the request of data of picture data corresponding to described second distance to carry described processor to described MCU;
Described receiver, also for:
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
Described reflector, also for:
The picture data corresponding with described first distance is sent to described second participant's terminal.
In conjunction with the 5th kind of possibility implementation of the 5th aspect to the 5th aspect, in the 6th kind of possibility implementation in the 5th, described first range information comprises distance level scale corresponding to described first distance.
May implementation in conjunction with the 6th kind of the 5th aspect to the 5th aspect, the 7th kind in the 5th may in implementation, described transceiver, also for:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
6th aspect, provides a kind of MCU, and described MCU comprises receiver, reflector, processor and memory, wherein:
Described receiver, for receiving the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal;
Described processor, the range information stored for described first range information that receives according to described receiver and described memory and the first corresponding relation of picture composition type, determine the first picture composition type of described first distance correspondence;
Described processor, also for according to described first picture composition type, generates the picture data that described first distance is corresponding;
Described reflector, for sending the picture data of the described first distance correspondence that described processor generates to described conference terminal.
In conjunction with the 6th aspect, in the first the possibility implementation in the 6th, described first range information comprises distance level scale corresponding to described first distance.
In conjunction with the 6th aspect, the second in the 6th may in implementation, and described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described processor, for:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except the picture data that described conference terminal shows gathers.
The second in conjunction with the 6th aspect to the 6th aspect may implementation, and the third in the 6th may in implementation, described processor, also for:
According to described first picture composition type, obtain the picture data of at least one conference terminal display corresponding to described first picture composition type;
The picture data that at least one conference terminal corresponding according to described first picture composition type shows, obtains the picture data that described first distance is corresponding.
In conjunction with the third possibility implementation of the 6th aspect to the 6th aspect, in the 4th kind of possibility implementation in the 6th, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document;
Described processor, for: according to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
May implementation in conjunction with the 4th kind of the 6th aspect, the 5th kind in the 6th may in implementation, described receiver, also for:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal;
Described reflector, also for: if described processor determines described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
7th aspect, provides a kind of conference terminal, and described conference terminal comprises receiver and reflector:
Described receiver, for receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Described reflector, also for sending the request of data for the picture data of asking described second picture composition type corresponding to MCU, describedly carry described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described receiver, also for receiving the picture data corresponding with described second picture composition type from described MCU;
Described reflector, also for sending the picture data corresponding with described second picture composition type to described first participant's terminal.
Eighth aspect, provides a kind of MCU, and described MCU comprises receiver, reflector and processor:
Described receiver, for receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described processor, for the described second picture composition type received according to described receiver, generates the picture data that described second picture composition type is corresponding;
Described reflector, also for sending picture data corresponding to described second picture composition type to described conference terminal.
9th aspect, provides a kind of conference terminal, and described conference terminal comprises:
Distance detection module, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
Generation module, for generating the request of data for the picture data of asking described first distance corresponding according to described first range information, described request of data carries described first range information;
Sending module, for sending the request of data of the described picture data for asking described first distance corresponding to MCU;
Receiver module, for receiving the picture data corresponding with described first distance from described MCU;
Described sending module, also for sending the described picture data corresponding with the first distance to described first participant's terminal.
In conjunction with the 9th aspect, in the first the possibility implementation in the 9th, described conference terminal also comprises acquisition module;
Described acquisition module, for obtaining the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
May implementation in conjunction with the first of the 9th aspect or the 9th aspect, the second in the 9th may in implementation, described distance detection module, also for:
Ultrasonic signal is sent to described first participant's terminal;
Receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal;
According to the delivery time of described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
In conjunction with the second possibility implementation of the 9th aspect, the third in the 9th may in implementation, carries described first participant's terminal and receive the delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal in described ultrasound feedback signal;
Described distance detection module, also for:
Poor according to the described very first time, and described first participant's terminal receives the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal, determines described first distance.
May implementation in conjunction with the third of the 9th aspect to the 9th aspect, the 4th kind in the 9th may in implementation, described distance detection module, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal, described second participant's terminal and described conference terminal establish a communications link;
Described sending module, also for:
When described second distance information is identical with described first range information, send picture data corresponding to described first distance, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
May implementation in conjunction with the third of the 9th aspect, the 5th kind in the 9th may in implementation, described distance detection module, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described sending module, also for:
The request of data for asking picture data that described second distance is corresponding is sent to described MCU, described for asking the request of data of picture data corresponding to described second distance to carry described second distance information;
Described receiver module, also for:
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
Described sending module, also for:
The described picture data corresponding with the first distance is sent to described second participant's terminal.
In conjunction with the 5th kind of possibility implementation of the 9th aspect to the 9th aspect, in the 6th kind of possibility implementation in the 9th, described first range information comprises distance level scale corresponding to described first distance.
May implementation in conjunction with the 6th kind of the 9th aspect to the 9th aspect, the 7th kind in the 9th may in implementation, described sending module, also for:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
Tenth aspect, provides a kind of MCU, and described MCU comprises:
Receiver module, for receiving the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal, and described conference terminal and described first participant's terminal establish a communications link;
Determination module, for the first corresponding relation according to described first range information and range information and picture composition type, determines the first picture composition type that described first distance is corresponding;
Generation module, for according to described first picture composition type, generates the picture data that described first distance is corresponding;
Sending module, for sending picture data corresponding to described first distance to described conference terminal, to make the picture data that described in described first participant's terminal demonstration, the first distance is corresponding.
In conjunction with the tenth aspect, in the first the possibility implementation in the tenth, described first range information comprises distance level scale corresponding to described first distance.
In conjunction with the tenth aspect, the second in the tenth may in implementation, and described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described determination module, also for:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except described conference terminal gathers.
In conjunction with the second possibility implementation of the tenth aspect to the tenth aspect, in the third possibility implementation in the tenth, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document;
Described determination module, also for:
According to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
May implementation in conjunction with the third of the tenth aspect to the tenth aspect, the 4th kind in the tenth may in implementation, described receiver module, also for:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal, and described conference terminal and described second participant's terminal establish a communications link;
Described sending module, also for
If described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
11 aspect, provides a kind of conference terminal, and described conference terminal comprises:
Receiver module, for receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Sending module, for sending the request of data for the picture data of asking described second picture composition type corresponding to MCU, describedly carries described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described receiver module, also for receiving the picture data corresponding with described second picture composition type from described MCU;
Described sending module, also for sending described corresponding with the second picture composition type picture data to described first participant's terminal.
12 aspect, provides a kind of MCU, it is characterized in that, described MCU comprises:
Receiver module, for receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Generation module, for according to described second picture composition type, generates the picture data that described second picture composition type is corresponding;
Sending module, for sending picture data corresponding to described second picture composition type to described conference terminal.
13 aspect, provides a kind of system of transfer of data, and described system comprises conference terminal and MCU, wherein:
Described conference terminal, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal, the request of data for the picture data of asking described first distance corresponding is generated according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information, the request of data of the described picture data for asking described first distance corresponding is sent to MCU;
Described MCU, for receiving the request of data of the picture data for asking described first distance correspondence from described conference terminal, according to the first corresponding relation of described first range information and range information and picture composition type, determine the first picture composition type that described first distance is corresponding, according to described first picture composition type, generate the picture data that described first distance is corresponding, send picture data corresponding to described first distance to described conference terminal;
Described conference terminal, also for receiving the picture data corresponding with described first distance from described MCU, sends the described picture data corresponding with the first distance to described first participant's terminal.
The possible implementation of this system can with reference to the implementation of conference terminal and MCU.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system framework figure that the embodiment of the present invention provides;
Fig. 2 is the structural representation of a kind of conference terminal that the embodiment of the present invention provides;
Fig. 3 is the structural representation of a kind of server that the embodiment of the present invention provides;
Fig. 4 is the method flow diagram of a kind of transfer of data that the embodiment of the present invention provides;
Fig. 5 a, 5b, 5c and 5d are the interface display schematic diagrames that the embodiment of the present invention provides;
Fig. 6 a, 6b, 6c and 6d are the interface display schematic diagrames that the embodiment of the present invention provides;
Fig. 7 is the method flow diagram of a kind of transfer of data that the embodiment of the present invention provides;
Fig. 8 is the method flow diagram of a kind of transfer of data that the embodiment of the present invention provides;
Fig. 9 is the structural representation of a kind of conference terminal that the embodiment of the present invention provides;
Figure 10 is the structural representation of a kind of conference terminal that the embodiment of the present invention provides;
Figure 11 is the structural representation of a kind of server that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiments provide a kind of method of transfer of data, the method can be performed jointly by conference terminal and server.In addition, the function of server also can be integrated on conference terminal, is performed by conference terminal, and the present embodiment jointly performs for conference terminal and server and is described, and other situations are similar with it, repeat no more.Wherein, server can be MCU (multicontrolunit, multipoint controller).As shown in Figure 1, be the system framework figure of the embodiment of the present invention, comprising conference terminal, participant's terminal and MCU.
In force, each meeting-place can be provided with respective conference terminal, each conference terminal can with the picture pick-up device in affiliated meeting-place, and display device connects, and can be connected with MCU.Conference terminal can also establish a communications link with the participant's terminal in affiliated meeting-place.Participant's terminal can be the mobile terminal such as mobile phone or panel computer.In the process of carrying out video conference, for any one meeting-place, the picture pick-up device in this meeting-place can take the video in affiliated meeting-place, then the video data photographed can be sent to conference terminal, and the video data received then can be sent to MCU by conference terminal.MCU can be connected with the conference terminal in each meeting-place, the video data that the conference terminal receiving each meeting-place sends.Technical staff can call the administration interface of MCU by terminals such as notebook computers, the picture composition type that each meeting-place needs the picture data of display is set in this administration interface, such as, the picture composition type in each meeting-place can be the video only including main meeting-place, or also comprises the video in main meeting-place and several other meeting-place.The picture composition type that MCU can be arranged according to technical staff, the video pictures in multiple meeting-place is reduced with certain proportion, form a large picture, as a road picture data, send to the conference terminal in each meeting-place, conference terminal can be decoded to the picture data received, and decoded image data and voice data is sent to respectively display device and the stereo set in affiliated meeting-place, and display device and stereo set then can export the view data of picture data and voice data.
Conference terminal can comprise processor 210, receiver 220, reflector 230, and receiver 220 can be connected with processor 210 respectively with reflector 230, as shown in Figure 2.Receiver 220 may be used for receipt message, data or ultrasound feedback signal, receiver 220 can include but not limited to antenna, at least one amplifier, tuner, one or more oscillator, coupler, LNA (LowNoiseAmplifier, low noise amplifier), duplexer etc.Receiver 220 can receive analog signal, or digital signal, then digital signal is sent to processor 210, can process to make processor 210 to the data received.Reflector 230 may be used for sending message, data or ultrasonic signal, with the similar of receiver 220, reflector 230 can include but not limited to antenna, at least one amplifier, tuner, one or more oscillator, coupler, LNA (LowNoiseAmplifier, low noise amplifier), duplexer etc.Processor 210 can be the control centre of conference terminal, utilizes the various piece of various interface and the whole conference terminal of connection, as receiver 220 and reflector 230 etc.Optionally, processor 210 can comprise one or more processing unit; Preferably, processor 210 accessible site application processor and modem processor, wherein, application processor mainly processes operating system, and modem processor mainly processes radio communication.Processor 210 can also be digital signal processor, application-specific integrated circuit (ASIC), field programmable gate array or other programmable logic devices etc.Conference terminal can also comprise memory, and memory can be used for storing software program and module, and processor 210 is stored in software code and the module of memory by reading, thus performs various function application and the data processing of teaching terminal.
Server can comprise transceiver receiver 310, reflector 320, processor 330 and memory 340, and receiver 310, reflector 320 can be connected with processor 330 respectively with memory 340, as shown in Figure 3.Transceiver 310 may be used for messaging or data, receiver 310 can include but not limited to antenna, at least one amplifier, tuner, one or more oscillator, coupler, LNA (LowNoiseAmplifier, low noise amplifier), duplexer etc., for receipt message or data.With the similar of receiver 320, reflector 320 also can include but not limited to antenna, at least one amplifier, tuner, one or more oscillator, coupler, LNA (LowNoiseAmplifier, low noise amplifier), duplexer etc., for sending message or data.Processor 330 can be the control centre of server, utilize the various piece of various interface and the whole server of connection, software program in memory 340 and/or module is stored in by running or performing, and call the data be stored in memory 340, perform various function and the deal with data of server, thus integral monitoring is carried out to server.Processor 330 can comprise one or more processing unit; Processor 330 can be general processor, comprises central processing unit (CentralProcessingUnit is called for short CPU), network processing unit (NetworkProcessor is called for short NP) etc.; Can also be digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic devices etc.Memory 340 may be used for storage program.Particularly, program can comprise program code, and program code comprises computer-managed instruction.Memory 340 may comprise RAM, still may comprise nonvolatile memory (non-volatilememory), such as at least one magnetic disc store.The program code stored in processor 330 execute store 340, to realize the various functions of processor in the embodiment of the present invention.
As shown in Figure 4, the handling process of the method can be as follows:
Step 401, conference terminal obtains the first range information of the first distance of instruction conference terminal and first participant's terminal.
In force, user is in the process of participating in video conference, can the mobile terminal such as carrying mobile phone or panel computer (i.e. participant's terminal), the code for connecting with conference terminal can be prestored in participant's terminal, and for the code of the picture data of playing this video conference.The mode that participant's terminal and conference terminal connect is diversified, such as, can be connected by network, also can be connected by ultrasonic wave pairing.Connect for ultrasonic wave pairing, conference terminal can send ultrasonic signal by the stereo set connected, ultrasonic signal can be received and identified by the receiver of participant's terminal, then participant's terminal can detect conference terminal, and add its Wi-Fi network, thus realize the seamless link of conference terminal and mobile terminal.
Can be provided with distance detection part in conference terminal, distance detection part can be diversified, and as adopted laser distance sensor of the prior art or ultrasonic distance sensor, the present embodiment does not limit.After participant's terminal (i.e. first participant's terminal) of certain user connects with conference terminal, conference terminal by distance detection part, can detect first participant's terminal and the distance of self.The corresponding relation of participant's terminal and distance can be stored in conference terminal, first can and after terminal detects the range information of self and first participant's terminal, the mark of first participant's terminal and this range information can be added in the corresponding relation of above-mentioned participant's terminal and range information.
Optionally, can detect distance between participant's terminal and conference terminal by ultrasonic distance transducer, accordingly, the processing procedure of step 401 can be as follows: send ultrasonic signal to first participant's terminal; Receive from ultrasound feedback signal corresponding to the ultrasonic signal of first participant's terminal; According to the delivery time of ultrasonic signal and the very first time between the time of reception of ultrasound feedback signal poor, determine the first distance.
In force, distance detection part can be ultrasonic distance detection part of the prior art, and distance detection signal can be ultrasonic signal.After first participant's terminal and conference terminal connect, the distance detection part of conference terminal can send ultrasonic signal to conference terminal, and records this delivery time.After first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, conference terminal then can receive the ultrasonic signal feedback signal that first participant's terminal sends, and record the time of reception, and then the very first time that can calculate between delivery time and the time of reception is poor, according to this time difference, and hyperacoustic propagation velocity, calculate the first distance.
Optionally, the second time difference between delivery time that time of reception of first participant's terminal received ultrasonic signal and first participant's terminal send ultrasound feedback signal can be carried in ultrasound feedback signal, accordingly, above-mentioned processing procedure can be as follows: poor according to the very first time, and second time difference, determine the first distance.
In force, when first participant's terminal receives ultrasonic signal, the current moment (namely receiving the time of reception of this ultrasonic signal) can be recorded, after first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, and the delivery time being ready for sending ultrasound feedback signal can be recorded, and then the time difference (i.e. the second time difference) of the two can be determined, and the second time difference can be added in ultrasound feedback signal, send.Second time difference can indicate first participant's terminal from received ultrasonic signal to the processing time sent ultrasound feedback signal.Conference terminal then can receive the ultrasonic signal feedback signal that first participant's terminal sends, and can resolve this ultrasonic signal feedback signal, obtain the second time difference wherein, then can deduct for the second time difference by very first time difference, obtain the difference of the two, i.e. after the propagation time of ultrasonic signal propagation time and ultrasonic signal feedback signal, then can according to this difference, and hyperacoustic propagation velocity, calculate the first distance.In addition, also the time of reception of first participant's terminal received ultrasonic signal can be carried in ultrasound feedback signal, and first participant's terminal send the delivery time of ultrasound feedback signal, after conference terminal receives ultrasound feedback signal, the second time difference between delivery time that time of reception of first participant's terminal received ultrasonic signal and first participant's terminal send ultrasound feedback signal can be calculated, and then it is poor according to the very first time, and second time difference, calculate the first distance.
Optionally, the first range information comprises distance level scale corresponding to the first distance.
In force, conference terminal can according to distance, and divide distance level scale to the participant's terminal connected, above-mentioned first range information can comprise distance level scale.The distance range that can prestore in conference terminal and the corresponding relation of distance level scale, then can determine to calculate first apart from affiliated distance range, and then determine the distance level scale that this distance range is corresponding, the number of distance level scale can be arranged arbitrarily by technical staff, the present embodiment does not limit, the present embodiment is far away for distance level scale, in, nearly three kinds be described, other situations are similar with it, do not repeating.Such as, closely grade corresponding distance range far away is (0,10m), middle distance grade corresponding distance range far away is [10m, 25m], remote grade corresponding distance range far away is (25m ,+∞), the first distance calculated for 15m, then in can determining that distance level scale corresponding to first participant's terminal is.In addition, in conference terminal, also can prestore time difference scope, according to the above-mentioned time difference determined, determine the distance level scale that first participant's terminal is corresponding.
Optionally, can notify the current distance with conference terminal of user, corresponding processing procedure can be as follows: send the first range information to first participant's terminal, to make first participant's terminal demonstration first range information.
In force, after conference terminal determines the distance level scale that first participant's terminal is corresponding, can to first participant's terminal transmission range prompting message, the first range information that first participant's terminal is corresponding is carried in distance prompt message, first range information can be distance level scale, first participant's terminal then can receive this distance prompt message, then can show corresponding PUSH message, as " your present distance level scale is middle distance grade ".
Optionally, conference terminal can detect first participant's terminal and the range information of self in real time, accordingly, the processing procedure of step 401 can be as follows: when reaching default sense cycle, detects first range information of conference terminal relative to the first participant's terminal established a communications link with conference terminal.
In force, sense cycle can be pre-set in conference terminal, conference terminal can when often reaching default sense cycle, detect the range information of conference terminal relative to first participant's terminal, like this, if the position of first participant's terminal sends change, conference terminal can be known in time, and then can request of data be resend, suitable picture data can be seen to make user.
Step 402, conference terminal generates the request of data for the picture data of asking the first distance corresponding according to the first range information, carries the first range information for asking the request of data of picture data corresponding to described first distance.
In force, after conference terminal detects the first distance of self and first participant's terminal, first range information is added in request of data, this request of data may be used for the request of data of request first apart from the picture data of correspondence, for convenience of description, this request of data can be become the first request of data.
Optionally, can according to the first range information, and the content type of the data content of the current display of conference terminal determines corresponding picture composition type, accordingly, conference terminal can obtain the first content type of the content of current display, and first content type comprises meeting-place video, document; Correspondingly, for asking the request of data of picture data corresponding to described first distance can carry first content type.
In force, can classify to the content of conference terminal display, obtain the content type of content, content type can comprise meeting-place video and document.Wherein, meeting-place video content can be the picture data that MCU generates, and the content of document can be the document data of video conference, as PPT and word etc.Conference terminal can obtain the content of current display, and then the content type (i.e. first content type) that this content is corresponding can be determined, then first content type can be added in the first request of data, and the first request of data can be sent to MCU.
Step 403, conference terminal sends the first request of data to MCU.
In force, conference terminal can send the first request of data to MCU, carry the range information of the first distance in this first request of data after the first distance of self and first participant's terminal being detected.In addition, for the situation of the first content type of the data content of the current display of above-mentioned acquisition conference terminal, accordingly, first content type can be added in the first request of data, then the first request of data can be sent to MCU, then the first range information and first content type can be carried in the first request of data.
Step 404, MCU receives the first request of data from conference terminal, carries the first range information of instruction first distance in the first request of data, and this first distance is the distance between first participant's terminal.
In force, MCU can receive the first request of data that conference terminal sends, and then can resolve the first request of data, obtain the first range information carried in this first request of data, to carry out subsequent treatment.
Step 405, MCU, according to the first corresponding relation of the first range information and range information and picture composition type, determines the first picture composition type that the first distance is corresponding.
In force, technical staff can arrange picture composition type corresponding to different distance in MCU.The range information of different distance and picture composition type then can be carried out corresponding storage by MCU, set up the corresponding relation (i.e. the first corresponding relation) of Distance geometry picture composition type.Be remote grade, middle distance grade and closely grade for range information, picture composition type corresponding to remote grade is used to indicate the picture data that picture data corresponding to the first distance comprises conference terminal display; Picture composition type corresponding to middle distance grade is used to indicate the picture data that picture data corresponding to the first distance comprises conference terminal display, and the picture data of at least one conference terminal collection except conference terminal except; The picture composition type that closely grade is corresponding is used to indicate the picture data that picture data corresponding to the first distance comprises at least one conference terminal collection except conference terminal.
After MCU receives the first request of data, in above-mentioned corresponding relation, the first picture composition type that the distance of the first distance in the first request of data is corresponding can be searched, to carry out subsequent treatment.
Optionally, for the situation of first content type of content of also carrying the current display of conference terminal in above-mentioned first request of data, accordingly, first corresponding relation can comprise the second corresponding relation of picture composition type and range information and content type, the processing procedure of step 405 can be as follows: according to described first range information, described first content type and described second corresponding relation, determines the first picture composition type that first content type described in described first Distance geometry is corresponding.
In force, above-mentioned first corresponding relation can comprise the second corresponding relation of picture composition type and range information and content type, namely can prestore range information, the content type of conference terminal and three's corresponding relation of picture composition type in MCU.Wherein, range information can be distance level scale, and content type can comprise meeting-place video and document.For the situation that content type is meeting-place video, the content type of range information, conference terminal can be identical with above-mentioned corresponding relation with the corresponding relation of picture composition type, repeats no more; Be the situation of document for content type, the content type of range information, conference terminal and the corresponding relation of picture composition type can be: the document data that picture composition type corresponding to remote grade can show for conference terminal adds the picture composition type of the video data of document speaker; Picture composition type corresponding to middle distance grade can add the picture composition type of the video data of at least one conference terminal for document data, and the picture composition type that closely grade is corresponding is the picture composition type of the video data comprising at least one conference terminal.In addition, the picture composition type that closely grade is corresponding also can be the picture composition type comprising the video data of document speaker and the video counts of at least one conference terminal.
Such as, MCU and meeting-place A, meeting-place B, meeting-place C, meeting-place D, meeting-place E is connected with meeting-place F, user is in meeting-place B, the conference terminal display document data of meeting-place B, as shown in Figure 6 a, the picture composition type that then remote grade is corresponding is the picture composition type that document data adds the video data of document speaker, the display interface of corresponding first participant's terminal can be as shown in Figure 6 b, picture composition type corresponding to middle distance grade is that document data adds meeting-place C, the picture composition type of the video data of meeting-place D and meeting-place E, the display interface of corresponding first participant's terminal can be as fig. 6 c, the picture composition type that closely grade is corresponding is that the video data of document speaker adds meeting-place C, the picture composition type of the video data of meeting-place D and meeting-place E, the display interface of corresponding first participant's terminal can be as shown in fig 6d.
MCU can obtain the first content type and the first range information that the first request of data carries, then can in three's corresponding relation of the content type of above-mentioned range information, conference terminal and picture composition type, the picture composition type that inquiry is corresponding, to carry out subsequent treatment.
Step 406, MCU, according to the first picture composition type, generates the picture data that the first distance is corresponding.
In force, after MCU determines the first corresponding picture composition type, according to the first picture composition type, the picture data that the first distance is corresponding can be generated.If the first range information is remote grade, then determine the picture data that picture composition type corresponding to the first distance is used to indicate picture data corresponding to the first distance and comprises conference terminal display; Or, if the first range information is middle distance grade, then determine the picture data that picture composition type corresponding to the first distance is used to indicate picture data corresponding to the first distance and comprises conference terminal display, and the video data of at least one conference terminal except picture data; Or, if the first range information is closely grade, then determine the video data that picture composition type corresponding to the first distance is used to indicate picture data corresponding to the first distance and comprises at least one conference terminal except the picture data of conference terminal display.
Such as, MCU and meeting-place A, meeting-place B, meeting-place C, meeting-place D, meeting-place E is connected with meeting-place F, user is in meeting-place B, the conference terminal of meeting-place B only shows the video data of meeting-place A, as shown in Figure 5 a, for the video data of conference terminal display, the picture composition type that then remote grade is corresponding is the picture composition type of the video data only comprising meeting-place A, the display interface of corresponding first participant's terminal can be as shown in Figure 5 b, picture composition type corresponding to middle distance grade is for comprising meeting-place A, meeting-place C, the picture composition type of the video data of meeting-place D and meeting-place E, the display interface of corresponding first participant's terminal can be as shown in Figure 5 c, the picture composition type that closely grade is corresponding is for comprising meeting-place C, meeting-place D, the picture composition type of the video data of meeting-place E and meeting-place F, the display interface of corresponding first participant's terminal can be as fig 5d.
Optionally, MCU generates first can be as follows apart from the processing procedure of corresponding picture data: according to the first picture composition type, obtains the picture data of at least one conference terminal display corresponding to the first picture composition type; The picture data that at least one conference terminal corresponding according to the first picture composition type shows, obtains the picture data that the first distance is corresponding.
In force, MCU can establish a communications link with multiple conference terminal, and can receive the video data that each conference terminal of establishing a communications link with MCU sends.In the video data that MCU can send at each conference terminal received, obtain the picture data of at least one conference terminal display corresponding to the first picture composition type, the picture data that at least one conference terminal corresponding according to the first picture composition type shows, obtains the picture data that the first distance is corresponding.
Step 407, MCU sends picture data corresponding to the first distance to conference terminal.
In force, the picture data of the first picture composition type can be sent to conference terminal by MCU.The picture data of the first picture composition type can be prestored in MCU, also can generate the picture data of the first picture composition type in real time.
Step 408, conference terminal receives the picture data corresponding with the first distance from MCU.
Step 409, conference terminal sends the picture data corresponding with the first distance to first participant's terminal.
In force, conference terminal can receive the picture data of the first picture composition type of the first distance correspondence that MCU sends, then this picture data can be sent to first participant's terminal, after first participant's terminal receives this picture data, can show this picture data.
In addition, conference terminal is after the first range information of the first distance obtaining instruction conference terminal and first participant's terminal, can also establish a communications link with other participant's terminals, obtain the range information to drink, if existence second participant's terminal and conference terminal connect, and second distance information corresponding to second participant's terminal is identical with above-mentioned first range information, then processing procedure can be as follows:
Step one, conference terminal obtains the second distance information of the second distance of instruction conference terminal and second participant's terminal, and second participant's terminal and conference terminal establish a communications link.
In force, second participant's terminal can establish a communications link with conference terminal, and concrete connected mode is identical with the above-mentioned mode established a communications link.Can be provided with distance detection part in conference terminal, distance detection part can adopt laser distance sensor of the prior art or ultrasonic distance sensor, and the present embodiment does not limit.After second participant's terminal and conference terminal connect, conference terminal by distance detection part, can detect second participant's terminal and the distance of self, and the mode of detecting distance can be identical with the mode of the distance of above-mentioned detection and first participant's terminal.Conference terminal can determine second distance information according to the distance detected (i.e. second distance), and second distance information can be distance level scale.
Step 2, conference terminal sends the request of data for asking picture data that described second distance is corresponding to MCU, carries second distance information for asking the request of data of picture data corresponding to described second distance.For the ease of hereafter describing, the request of data of picture data corresponding to described second distance can be asked to be called the second request of data by being used for.
Step 3, MCU receives the second request of data from conference terminal, carries the second distance information of instruction second distance in the second request of data.
In force, MCU can receive the second request of data that conference terminal sends, and then can resolve the second request of data, obtain the second distance information of the second distance in this second request of data, to carry out subsequent treatment.
Step 4, if second distance and the first range information, then MCU sends the feedback message of the second request of data to conference terminal, and feedback message carries the first range information, and feedback message is used to indicate the picture data that picture data corresponding to second distance is the first distance correspondence.
In force, after MCU obtains the second distance information of instruction second distance, can judge that whether second distance information is identical with the first range information, if MCU judges that second distance information is identical with the first range information, then MCU can send the feedback message of the second request of data to conference terminal, and this feedback message can carry the first range information.
Step 5, conference terminal receives the feedback message from second request of data of MCU, and feedback message carries the first range information, and feedback message is used to indicate the picture data that picture data corresponding to second distance is the first distance correspondence.
In force, conference terminal can receive the feedback message of the second request of data from MCU, then can resolve this feedback message, obtain the first range information that this feedback message carries, and then conference terminal can judge that picture data that second distance is corresponding is as picture data corresponding to the first distance.
Step 6, conference terminal sends the picture data corresponding with the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
In force, conference terminal can judge that picture data that second distance is corresponding is as after picture data corresponding to the first distance, can send picture data corresponding to the first distance to second participant's terminal, second participant's terminal can receive this picture data, and shows this picture data.
Optionally, conference terminal also can judge that whether second distance information is identical with the first range information, and accordingly, conference terminal, after the first range information of the first distance obtaining instruction conference terminal and first participant's terminal, can carry out following process:
Step one, conference terminal obtains the second distance information of the second distance of instruction conference terminal and second participant's terminal, and second participant's terminal and conference terminal establish a communications link.
The concrete process of this step can see above-mentioned steps one.
Step 2, second distance with first apart from time identical, conference terminal sends with first apart from corresponding picture data, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
In force, conference terminal can judge that whether second distance information is identical with the first range information, if conference terminal judges that second distance information is identical with the first range information, then can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
In addition, user can also choose the picture composition type that oneself wishes viewing in first participant's terminal, and corresponding processing procedure can comprise the following steps:
Step 701, conference terminal receives the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, carries the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type.
In force, in the broadcast interface of first participant's terminal, can be provided with the option of picture composition type, user can click this option, and first participant's terminal then can show selectable picture composition list of types.First participant's terminal can obtain the content type of the content of the current display of conference terminal, and shows different picture composition list of types according to different content type.Remote grade, middle distance grade and closely grade is divided into for range information, content type for current display is the situation of meeting-place video, can comprise the picture composition type that two kinds of distance level scale except distance level scale corresponding to first participant's terminal are corresponding in picture composition list of types.Content type for current display is the situation of document, the picture composition type that two kinds of distance level scale except distance level scale corresponding to first participant's terminal are corresponding can be comprised in picture composition list of types, and content type is when being meeting-place video, three kinds of corresponding picture composition types.
Such as, MCU is connected with meeting-place A, meeting-place B, meeting-place C, meeting-place D and meeting-place E, and user is in meeting-place B, and the picture composition type that the conference terminal of meeting-place B is corresponding is the video data only showing meeting-place A, the corresponding middle distance grade of first participant's terminal.If the current display of conference terminal is video data, then the picture composition type that picture composition list of types comprises 1, remote grade is corresponding, namely only comprises the picture composition type of the video data of meeting-place A; 2, the picture composition type that closely grade is corresponding, namely comprises the picture composition type of the video data of meeting-place C, meeting-place D and meeting-place E.If the current display of conference terminal is document data, then the picture composition type that picture composition list of types comprises 1, remote grade is corresponding, namely document data adds the picture composition type of the video data of document speaker; 2, the picture composition type that closely grade is corresponding, namely the video data of document speaker adds the picture composition type of the video data of meeting-place C, meeting-place D and meeting-place E; 3, during conference terminal display video data, the picture composition type that remote grade is corresponding, namely only comprises the picture composition type of the video data of meeting-place A; 4, during conference terminal display video data, the picture composition type that middle distance grade is corresponding, namely comprises the picture composition type of the video data of meeting-place A, meeting-place C and meeting-place D; 5, during conference terminal display video data, the picture composition type that closely grade is corresponding, namely comprises the picture composition type of the video data of meeting-place C, meeting-place D and meeting-place E.
User can in picture composition list of types, choose the picture composition type (i.e. the second picture composition type) of wishing viewing, first participant's terminal then can send request of data for the picture data of asking the second picture composition type corresponding to conference terminal, for convenience of description, the 3rd request of data can be called, the second picture composition type that user chooses in the 3rd request of data, can be carried.After conference terminal receives the 3rd request of data, the second picture composition type of carrying in the second request of data can be obtained.
Step 702, conference terminal sends the request of data for the picture data of asking described second picture composition type corresponding to MCU, for convenience of description, can be called the 4th request of data, can carry the second picture composition type in the 4th request of data.
In force, after conference terminal receives the 3rd request of data, the 4th request of data can be sent to MCU, in the 4th request of data, carry the second picture composition type that user chooses.Wherein, the 4th request of data can be the 3rd request of data, and the 3rd request of data received can be transmitted to MCU by conference terminal; 4th request of data also can be that conference terminal generates according to the second picture composition type in the 3rd request of data.
Step 703, MCU receives the 4th request of data from conference terminal, carries the second picture composition type in the 4th request of data.
In force, MCU can receive the 4th request of data that conference terminal sends, and resolves the 4th request of data, obtains the second picture composition type wherein.
Step 704, MCU, according to the second picture composition type, generates the picture data that the second picture composition type is corresponding.
In force, MCU can judge the current picture data whether having sent the second picture composition type to conference terminal.If the current picture data not sending the second picture composition type to conference terminal of MCU, then MCU can according to the second picture composition type, obtain the picture data of at least one conference terminal display corresponding to the second picture composition type, then the picture data that at least one corresponding according to the second picture composition type conference terminal shows, generates the picture data that the second picture composition type is corresponding.If MCU is current send picture data corresponding to the second picture composition type to conference terminal, then can sends feedback message to conference terminal, the range information that the second picture composition type is corresponding in this feedback message, can be carried.
Step 705, MCU sends picture data corresponding to the second picture composition type to conference terminal.
Step 706, conference terminal receives from picture data corresponding to the second picture composition type of MCU.
Step 707, conference terminal sends picture data corresponding to the second picture composition type to first participant's terminal.
In force, after conference terminal receives picture data corresponding to the second picture composition type, this picture data can be sent to first participant's terminal.In addition, conference terminal can before the picture data that transmission second picture composition type is corresponding, judge the current picture data whether sending the other types except the second picture composition type to first participant's terminal, if, then can stop sending current picture data, and then send picture data corresponding to the second picture composition type to first participant's terminal.Like this, user can see the picture data of the picture composition type oneself chosen.
The present embodiment additionally provides a kind of method of transfer of data, and as shown in Figure 8, concrete processing procedure can comprise the following steps:
Step 801, conference terminal obtains the first range information of the first distance of instruction conference terminal and first participant's terminal, and the first range information is distance level scale.
The concrete processing procedure of this step can with reference to step 401.
Step 802, conference terminal sends the request of data for the picture data of asking described first distance corresponding to MCU, for asking the request of data of picture data corresponding to described first distance to carry the first range information, and the first content type of the content of the current display of conference terminal.
The concrete processing procedure of this step can with reference to step 403.
Step 803, MCU receives the request of data of the picture data for asking the first distance correspondence from conference terminal.
The concrete processing procedure of this step can with reference to step 404.
Step 804, MCU, according to three's corresponding relation of the content type of the distance level scale prestored, conference terminal and picture composition type, determines the first range information and the first picture composition type corresponding to first content type.
The concrete processing procedure of this step can with reference to step 405.
Step 805, MCU is according to the corresponding relation of picture composition type and range information and content type, and the first range information, first content type, determines the first picture composition type that the first Distance geometry first content type is corresponding.
The concrete processing procedure of this step can with reference to step 406.
Step 806, MCU sends picture data corresponding to the first distance to conference terminal.
The concrete processing procedure of this step can with reference to step 407.
Step 807, conference terminal receives the picture data corresponding with the first distance from MCU.
The concrete processing procedure of this step can with reference to step 408.
Step 808, conference terminal sends the picture data corresponding with the first distance, to make first participant's terminal demonstration first apart from the picture data of correspondence to first participant's terminal.
The concrete processing procedure of this step can with reference to step 409.
In the embodiment of the present invention, obtain the first range information of the first distance of instruction conference terminal and first participant's terminal, the first request of data is sent to MCU, first request of data carries the first range information, receive from picture data corresponding to first distance of MCU, picture data corresponding to the first distance is sent to first participant's terminal, to make first participant's terminal demonstration first apart from the frame numbers of correspondence, like this, different picture datas can be sent to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of conference terminal, and as shown in Figure 2, this conference terminal comprises processor 210, receiver 220 and reflector 230, wherein:
Described processor 210, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
Described processor 210, also for generating the request of data for the picture data of asking described first distance corresponding according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
Described reflector 230, for sending the request of data of the described picture data for asking described first distance corresponding to MCU;
Described receiver 220, for receiving the picture data corresponding with described first distance from described MCU;
Described reflector 230, also for send to described first participant's terminal receive with described receiver described first apart from corresponding picture data.
In force, user, can the mobile terminal such as carrying mobile phone or panel computer (i.e. participant's terminal) in the process of participating in video conference.Participant's terminal can set up wireless connections with conference terminal, and the mode connected is diversified, such as, can be connected by network, also can be connected by ultrasonic wave pairing.Connect for ultrasonic wave pairing, conference terminal can send ultrasonic signal by the stereo set connected, ultrasonic signal can be received by the receiver of participant's terminal, then participant's terminal can detect conference terminal, and add its Wi-Fi network, thus realize the seamless link of conference terminal and mobile terminal.After participant's terminal (i.e. first participant's terminal) of certain user connects with conference terminal, conference terminal can pass through processor 210, detects first participant's terminal and the range information of self.Reflector 230 can send the request of data (can be described as the first request of data) of the picture data for asking described first distance correspondence to MCU, the first range information of the first distance can be carried in first request of data, receiver 220 can receive the picture data of the first picture composition type corresponding to the first range information, then the picture data got can be sent to first participant's terminal by reflector 230, after first participant's terminal receives this picture data, can show this picture data.
Optionally, described processor 210, also for
Obtain the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
In force, processor 210 can be classified to the content of conference terminal display, and obtain the content type of content, content type can comprise meeting-place video and document.Wherein, meeting-place video content can be the picture data that MCU generates, and the content of document can be the document data of video conference, as PPT and word etc.Processor 210 can obtain the content of current display, and then the content type (i.e. first content type) that this content is corresponding can be determined, then first content type can be added in the first request of data, the first request of data can be sent to MCU by reflector 230.
Optionally, described reflector 230 for, to described first participant's terminal send ultrasonic signal;
Described receiver 220 for, receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal; Accordingly,
Described processor 210, for the delivery time according to described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
In force, after first participant's terminal and conference terminal connect, reflector 230 can send ultrasonic signal to conference terminal, and records this delivery time.After first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, receiver 220 can receive the ultrasonic signal feedback signal that first participant's terminal sends, and record the time of reception, and then the very first time that processor 210 can calculate between delivery time and the time of reception is poor, according to this time difference, and hyperacoustic propagation velocity, calculate the first distance.
Optionally, carry described first participant's terminal in described ultrasound feedback signal and receive the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal;
Described processor 210, for:
Poor according to the described very first time, and described second time difference, determine described first distance.
In force, when first participant's terminal receives ultrasonic signal, the current moment (namely receiving the time of reception of this ultrasonic signal) can be recorded, after first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, and the delivery time being ready for sending ultrasound feedback signal can be recorded, and then the time difference (i.e. the second time difference) of the two can be determined, and the second time difference can be added in ultrasound feedback signal, send.Second time difference can indicate first participant's terminal from received ultrasonic signal to the processing time sent ultrasound feedback signal.Receiver 220 can receive the ultrasonic signal feedback signal that first participant's terminal sends, processor 210 can be resolved this ultrasonic signal feedback signal, obtain the second time difference wherein, then can deduct for the second time difference by very first time difference, obtain the difference of the two, i.e. after the propagation time of ultrasonic signal propagation time and ultrasonic signal feedback signal, then can according to this difference, and hyperacoustic propagation velocity, calculate the first distance.
Optionally, described processor 210, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described reflector 230, also for when described processor 210 determines that described second distance information is identical with described first range information, the described picture data corresponding with the first distance is sent, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
In force, conference terminal can establish a communications link with second participant's terminal, processor 210 can detect the second distance with second participant's terminal, processor 210 can judge that whether second distance information is identical with the first range information, if conference terminal judges that second distance information is identical with the first range information, then reflector 230 can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Optionally, described processor 210, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described reflector 230, also for:
The request of data for asking picture data that described second distance is corresponding is sent, the described second distance information obtained for asking the request of data of picture data corresponding to described second distance to carry described processor 210 to described MCU;
Described receiver 220, also for:
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
Described reflector 230, also for:
The picture data corresponding with described first distance is sent to described second participant's terminal.
In force, conference terminal can establish a communications link with second participant's terminal, then processor 210 can obtain the second distance with second participant's terminal, then reflector 230 can send for asking the request of data of picture data corresponding to described second distance (can be called the second request of data) to MCU, and the second request of data carries the second distance information of second distance.After MCU receives the second request of data, can judge that whether second distance information is identical with the first range information, if MCU judges that second distance information is identical with the first range information, then MCU can send the feedback message of the second request of data to conference terminal, and this feedback message can carry the first range information.Receiver 220 can receive the feedback message from MCU, and feedback message can carry the first range information, and then processor 210 can judge that picture data that second distance is corresponding is as picture data corresponding to the first distance.Reflector 230 can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Optionally, described first range information comprises distance level scale corresponding to described first distance.
Optionally, described reflector 230, also for:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
In force, reflector 230 can to first participant's terminal transmission range prompting message, the first range information that first participant's terminal is corresponding is carried in distance prompt message, first range information can be distance level scale, first participant's terminal then can receive this distance prompt message, then corresponding PUSH message can be shown, as " your present distance level scale is middle distance grade ".
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of MCU, and as shown in Figure 3, this MCU comprises receiver 310, reflector 320, processor 330 and memory 340, wherein:
Described receiver 310, for receiving the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal;
Described processor 330, the range information stored for described first range information that receives according to described receiver and described memory 340 and the first corresponding relation of picture composition type, determine the first picture composition type of described first distance correspondence;
Described processor 330, also for according to described first picture composition type, generates the picture data that described first distance is corresponding;
Described reflector 320, for sending the picture data of the described first distance correspondence that described processor generates to described conference terminal.
In force, receiver 310 receives the first request of data that conference terminal sends, and then can obtain the first range information in this first request of data.Technical staff can arrange picture composition type corresponding to different distance information in MCU.Different range informations and picture composition type can be carried out corresponding storage by memory 340.Processor 330 can in the corresponding relation of range information and picture composition type, search the first picture composition type that the first distance is corresponding, then generate the picture data that the first distance is corresponding, the picture data of the first picture composition type can be sent to conference terminal by reflector 330.
Optionally, described first range information comprises distance level scale corresponding to described first distance.
Optionally, described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described processor 330, for:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except the picture data that described conference terminal shows gathers.
Optionally, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document;
Described processor 330, for: according to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
In force, range information, the content type of conference terminal and the corresponding relation of picture composition type can be prestored in memory 340.Content type can comprise meeting-place video and document.For the situation that content type is meeting-place video, the content type of range information, conference terminal can be identical with above-mentioned corresponding relation with the corresponding relation of picture composition type, repeats no more; Be the situation of document for content type, the content type of range information, conference terminal and the corresponding relation of picture composition type can be: the document data that picture composition type corresponding to remote grade can show for conference terminal adds the picture composition type of the video data of document speaker; Picture composition type corresponding to middle distance grade can add the picture composition type of the video data of at least one conference terminal for document data, and the picture composition type that closely grade is corresponding is the picture composition type of the video data comprising at least one conference terminal.Processor 330 can obtain the first content type and the first range information that the first request of data carries, then can in the corresponding relation of the content type of above-mentioned range information, conference terminal and picture composition type, the picture composition type that inquiry is corresponding, to carry out subsequent treatment.
Optionally, described receiver 310, also for:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal;
Described reflector 320, also for: if described processor determines described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
In force, after receiver 310 receives the second request of data, processor 330 can judge that whether second distance information is identical with the first range information, if processor 330 judges that second distance information is identical with the first range information, then reflector 320 can send the feedback message of the second request of data to conference terminal, and this feedback message can carry the first range information.
In the embodiment of the present invention, obtain the first range information of the first distance of instruction conference terminal and first participant's terminal, the first request of data is sent to MCU, first request of data carries the first range information, receive from picture data corresponding to first distance of MCU, picture data corresponding to the first distance is sent to first participant's terminal, to make first participant's terminal demonstration first apart from the frame numbers of correspondence, like this, different picture datas can be sent to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of conference terminal, and as shown in Figure 2, this conference terminal comprises receiver 220 and reflector 230:
Described receiver 220, for receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Described reflector 230, for sending the request of data for the picture data of asking described second picture composition type corresponding to MCU, describedly carry described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described receiver 220, also for receiving the picture data corresponding with described second picture composition type from described MCU;
Described reflector 230, also for sending the picture data corresponding with described second picture composition type to described first participant's terminal.
User can in picture composition list of types, choose picture composition type, first participant's terminal then can send for asking the request of data of picture data corresponding to described second picture composition type (can be called the 3rd request of data) to conference terminal, can carry the second picture composition type that user chooses in the 3rd request of data.After receiver 220 receives the 3rd request of data, the second picture composition type of carrying in the 3rd request of data can be obtained, then reflector 230 sends for asking the request of data of picture data corresponding to described second picture composition type (can be called the 4th request of data) to MCU, the second picture composition type is carried in 4th request of data, receiver 220 can receive picture data corresponding to the second picture composition type, then the picture data of the second picture composition type can be sent to first participant's terminal by reflector 230, and stop sending picture data corresponding to the first picture composition type to first participant's terminal.First participant's terminal can show the picture data of the second picture composition type.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of MCU, and as described in Figure 3, described MCU comprises receiver 310, reflector 320 and processor 330:
Described receiver 310, for receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described processor 330, for the described second picture composition type received according to described receiver, generates the picture data that described second picture composition type is corresponding;
Described reflector 320, also for sending picture data corresponding to described second picture composition type to described conference terminal.
User can in picture composition list of types, choose picture composition type, first participant's terminal then can send for asking the request of data of picture data corresponding to described second picture composition type (can be called the 3rd request of data) to conference terminal, can carry the second picture composition type that user chooses in the 3rd request of data.After conference terminal receives the 3rd request of data, the second picture composition type of carrying in the 3rd request of data can be obtained, then send for asking the request of data of picture data corresponding to described second picture composition type (the 4th request of data can be called) to MCU, the second picture composition type is carried in 4th request of data, receiver 310 can receive the 4th request of data from conference terminal, then can resolve the 4th request of data, processor 330 can obtain the second picture composition type of carrying in the 4th request of data, and then can according to described second picture composition type, generate the picture data that described second picture composition type is corresponding, then reflector 320 can send picture data corresponding to described second picture composition type to described conference terminal.
In the embodiment of the present invention, obtain the first range information of the first distance of instruction conference terminal and first participant's terminal, the first request of data is sent to MCU, first request of data carries the first range information, receive from picture data corresponding to first distance of MCU, picture data corresponding to the first distance is sent to first participant's terminal, to make first participant's terminal demonstration first apart from the frame numbers of correspondence, like this, different picture datas can be sent to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of conference terminal, and as shown in Figure 9, described conference terminal comprises:
Distance detection module 910, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
Generation module 920, for generating the request of data for the picture data of asking described first distance corresponding according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
Sending module 930, for sending the request of data of the described picture data for asking described first distance corresponding to MCU;
Receiver module 940, for receiving the picture data corresponding with described first distance from described MCU;
Described sending module 930, also for sending the described picture data corresponding with the first distance to described first participant's terminal.
User, can the mobile terminal such as carrying mobile phone or panel computer (i.e. participant's terminal) in the process of participating in video conference.Participant's terminal can set up wireless connections with conference terminal, and the mode connected is diversified, such as, can be connected by network, also can be connected by ultrasonic wave pairing.Connect for ultrasonic wave pairing, conference terminal can send ultrasonic signal by the stereo set connected, ultrasonic signal can be received by the receiver of participant's terminal, then participant's terminal can detect conference terminal, and add its Wi-Fi network, thus realize the seamless link of conference terminal and mobile terminal.After participant's terminal (i.e. first participant's terminal) of certain user connects with conference terminal, distance detection module 910 can detect first participant's terminal and the range information of self, then generation module 920, can generate the request of data generating the picture data for asking described first distance correspondence according to described first range information.Sending module 930 can send the request of data (can be called the first request of data) of the picture data for asking described first distance correspondence to MCU, the first range information of the first distance can be carried in first request of data, receiver module 940 can receive the picture data of the first picture composition type corresponding to the first range information, then the picture data got can be sent to first participant's terminal by sending module 930, after first participant's terminal receives this picture data, can show this picture data.
Optionally, as shown in Figure 10, described conference terminal also comprises acquisition module 950;
Described acquisition module 950, for obtaining the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
Can classify to the content of conference terminal display, obtain the content type of content, content type can comprise meeting-place video and document.Wherein, meeting-place video content can be the picture data that MCU generates, and the content of document can be the document data of video conference, as PPT and word etc.Acquisition module 950 can obtain the content of current display, and then the content type (i.e. first content type) that this content is corresponding can be determined, then first content type can be added in the first request of data by sending module 930, and the first request of data can be sent to MCU.
Optionally, described distance detection module 910, also for:
Ultrasonic signal is sent to described first participant's terminal;
Receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal;
According to the delivery time of described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
In force, after first participant's terminal and conference terminal connect, distance detection module 910 can send ultrasonic signal to conference terminal, and records this delivery time.After first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, distance detection module 910 can receive the ultrasonic signal feedback signal that first participant's terminal sends, and record the time of reception, and then the very first time that distance detection mould 910 can calculate between delivery time and the time of reception is poor, according to this time difference, and hyperacoustic propagation velocity, calculate the first distance.
Optionally, carry described first participant's terminal in described ultrasound feedback signal and receive the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal;
Described distance detection module 910, also for:
Poor according to the described very first time, and described second time difference, determine described first distance.
In force, when first participant's terminal receives ultrasonic signal, the current moment (namely receiving the time of reception of this ultrasonic signal) can be recorded, after first participant's terminal receives this ultrasonic signal, ultrasound feedback signal can be sent to conference terminal, and the delivery time being ready for sending ultrasound feedback signal can be recorded, and then the time difference (i.e. the second time difference) of the two can be determined, and the second time difference can be added in ultrasound feedback signal, send.Second time difference can indicate first participant's terminal from received ultrasonic signal to the processing time sent ultrasound feedback signal.Distance detection module 910 can receive the ultrasonic signal feedback signal that first participant's terminal sends, and can resolve this ultrasonic signal feedback signal, obtain the second time difference wherein, then can deduct for the second time difference by very first time difference, obtain the difference of the two, i.e. after the propagation time of ultrasonic signal propagation time and ultrasonic signal feedback signal, then can according to this difference, and hyperacoustic propagation velocity, calculate the first distance.
Optionally, described obtain the first range information of the first distance of instruction described conference terminal and first participant's terminal after, described apart from detection module 910, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal, described second participant's terminal and described conference terminal establish a communications link;
Described sending module 930, also for:
When described second distance information is identical with described first range information, send picture data corresponding to described first distance, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
In force, conference terminal can establish a communications link with second participant's terminal, distance detection module 910 can detect the second distance with second participant's terminal, processor 230 can judge that whether second distance information is identical with the first range information, if conference terminal judges that second distance information is identical with the first range information, then sending module 930 can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Optionally, described obtain the first range information of the first distance of instruction described conference terminal and first participant's terminal after, described apart from detection module 910, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described sending module 930, also for:
The request of data for asking picture data that described second distance is corresponding is sent to described MCU, described for asking the request of data of picture data corresponding to described second distance to carry described second distance information;
Described receiver module 940, also for:
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
Described sending module 930, also for:
The described picture data corresponding with the first distance is sent to described second participant's terminal.
In force, conference terminal can establish a communications link with second participant's terminal, then distance detection module 910 can detect the second distance with second participant's terminal, then sending module 930 can send for asking the request of data of picture data corresponding to described second distance (can be called the second request of data) to MCU, and the second request of data carries the second distance information of second distance.After MCU receives the second request of data, can judge that whether second distance information is identical with the first range information, if MCU judges that second distance information is identical with the first range information, then MCU can send the feedback message of the second request of data to conference terminal, and this feedback message can carry the first range information.Receiver module 940 can receive the feedback message from MCU, and feedback message can carry the first range information, and then can judge that picture data that second distance is corresponding is as picture data corresponding to the first distance.Sending module 930 can send picture data corresponding to the first distance, to make second participant's terminal demonstration first apart from the picture data of correspondence to second participant's terminal.
Optionally, described first range information comprises distance level scale corresponding to described first distance.
Optionally, described sending module 930, also for:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
In force, sending module 930 can to first participant's terminal transmission range prompting message, the first range information that first participant's terminal is corresponding is carried in distance prompt message, first range information can be distance level scale, first participant's terminal then can receive this distance prompt message, then corresponding PUSH message can be shown, as " your present distance level scale is middle distance grade ".
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of MCU, and as shown in figure 11, described MCU comprises:
Receiver module 1110, for receiving the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal;
Determination module 1120, for the first corresponding relation according to described first range information and range information and picture composition type, determines the first picture composition type that described first distance is corresponding;
Generation module 1130, for according to described first picture composition type, generates the picture data that described first distance is corresponding;
Sending module 1140, for sending picture data corresponding to described first distance to described conference terminal, to make the picture data that described in described first participant's terminal demonstration, the first distance is corresponding.
In force, receiver module 1110 receives the first request of data that conference terminal sends, and then can obtain the first range information in this first request of data.Technical staff can arrange picture composition type corresponding to different distance information in MCU.Different range informations and picture composition type can be carried out corresponding storage by memory.Determination module 1120 can in the corresponding relation of range information and picture composition type, search the first picture composition type that the first distance is corresponding, generation module 1130 can according to the first picture composition type, generate the picture data that the first distance is corresponding, then the picture data of the first picture composition type can be sent to conference terminal by sending module 1140.
Optionally, described first range information comprises distance level scale corresponding to described first distance.
Optionally, described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described determination module 1120, also for:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except described conference terminal gathers.
Optionally, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document;
Described determination module 1120, also for:
According to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
In force, range information, the content type of conference terminal and the corresponding relation of picture composition type can be prestored in memory.Content type can comprise meeting-place video and document.For the situation that content type is meeting-place video, the content type of range information, conference terminal can be identical with above-mentioned corresponding relation with the corresponding relation of picture composition type, repeats no more; Be the situation of document for content type, the content type of range information, conference terminal and the corresponding relation of picture composition type can be: the document data that picture composition type corresponding to remote grade can show for conference terminal adds the picture composition type of the video data of document speaker; Picture composition type corresponding to middle distance grade can add the picture composition type of the video data of at least one conference terminal for document data, and the picture composition type that closely grade is corresponding is the picture composition type of the video data comprising at least one conference terminal.Determination module 1120 can obtain the first content type and the first range information that the first request of data carries, then can in the corresponding relation of the content type of above-mentioned range information, conference terminal and picture composition type, the picture composition type that inquiry is corresponding, to carry out subsequent treatment.
Optionally, described receiver module 1110, also for:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal, and described conference terminal and described second participant's terminal establish a communications link;
Described sending module 1140, also for
If described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
In force, after receiver module 1110 receives the second request of data, can judge that whether second distance information is identical with the first range information, if second distance information is identical with the first range information, then sending module 1140 can send the feedback message of the second request of data to conference terminal, and this feedback message can carry the first range information.
In the embodiment of the present invention, obtain the first range information of the first distance of instruction conference terminal and first participant's terminal, the first request of data is sent to MCU, first request of data carries the first range information, receive from picture data corresponding to first distance of MCU, picture data corresponding to the first distance is sent to first participant's terminal, to make first participant's terminal demonstration first apart from the frame numbers of correspondence, like this, different picture datas can be sent to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of conference terminal, and as shown in Figure 9, described conference terminal comprises:
Receiver module 940, for receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Sending module 930, for sending the request of data for the picture data of asking described second picture composition type corresponding to MCU, describedly carry described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described receiver module 930, also for receiving the picture data corresponding with described second picture composition type from described MCU;
Described sending module 940, also for sending described corresponding with the second picture composition type picture data to described first participant's terminal.
User can in picture composition list of types, choose picture composition type, first participant's terminal then can send for asking the request of data of picture data corresponding to described second picture composition type (can be called the 3rd request of data) to conference terminal, can carry the second picture composition type that user chooses in the 3rd request of data.After receiver module 940 receives the 3rd request of data, the second picture composition type of carrying in the 3rd request of data can be obtained, then sending module 930 sends for asking the request of data of picture data corresponding to described second picture composition type (can be called the 4th request of data) to MCU, the second picture composition type is carried in 4th request of data, to obtain picture data corresponding to the second picture composition type, then the picture data of the second picture composition type can be sent to first participant's terminal by sending module 930, and stop sending picture data corresponding to the first picture composition type to first participant's terminal.First participant's terminal can show the picture data of the second picture composition type.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of MCU, and as shown in figure 11, described MCU comprises:
Receiver module 1110, for receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Generation module 1130, for according to described second picture composition type, generates the picture data that described second picture composition type is corresponding;
Sending module 1140, for sending picture data corresponding to described second picture composition type to described conference terminal.
User can in picture composition list of types, choose picture composition type, first participant's terminal then can send for asking the request of data of picture data corresponding to described second picture composition type (can be called the 3rd request of data) to conference terminal, can carry the second picture composition type that user chooses in the 3rd request of data.After conference terminal receives the 3rd request of data, the second picture composition type of carrying in the 3rd request of data can be obtained, then send for asking the request of data of picture data corresponding to described second picture composition type (the 4th request of data can be called) to MCU, the second picture composition type is carried in 4th request of data, receiver module 1110 can receive the 4th request of data from conference terminal, then can resolve the 4th request of data, obtain the second picture composition type of carrying in the 4th request of data, and then can according to described second picture composition type, generation module 1130 can generate picture data corresponding to the second picture composition type, then sending module 1140 can send picture data corresponding to described second picture composition type to conference terminal.
In the embodiment of the present invention, obtain the first range information of the first distance of instruction conference terminal and first participant's terminal, the first request of data is sent to MCU, first request of data carries the first range information, receive from picture data corresponding to first distance of MCU, picture data corresponding to the first distance is sent to first participant's terminal, to make first participant's terminal demonstration first apart from the frame numbers of correspondence, like this, different picture datas can be sent to participant's terminal of diverse location, thus the picture data of participant's terminal demonstration can be made more to meet user's request.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (31)

1. a method for transfer of data, is characterized in that, described method is performed by conference terminal, and described method comprises:
Obtain the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
The request of data for the picture data of asking described first distance corresponding is generated according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
The request of data of the described picture data for asking described first distance corresponding is sent to multipoint control unit MCU;
Receive the picture data corresponding with described first distance from described MCU;
The described picture data corresponding with the first distance is sent to described first participant's terminal.
2. method according to claim 1, is characterized in that, described method also comprises:
Obtain the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
3. method according to claim 1 and 2, is characterized in that,
Described the first range information obtaining the first distance of instruction conference terminal and first participant's terminal, comprising:
Ultrasonic signal is sent to described first participant's terminal;
Receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal;
According to the delivery time of described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
4. method according to claim 3 is characterized in that, carries described first participant's terminal and receive the delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal in described ultrasound feedback signal;
Time difference between the time of reception of the described delivery time according to described ultrasonic signal and described ultrasound feedback signal, determine described first range information, comprising:
Poor according to the described very first time, and described first participant's terminal receives the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal, determines described first distance.
5. the method according to any one of Claims 1-4, is characterized in that, after described acquisition indicates the first range information of the first distance of described conference terminal and first participant's terminal, described method also comprises:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
When described second distance information is identical with described first range information, send the described picture data corresponding with the first distance to described second participant's terminal, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding.
6. the method according to any one of Claims 1-4, is characterized in that, after described acquisition indicates the first range information of the first distance of described conference terminal and first participant's terminal, described method also comprises:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
The request of data for asking picture data that described second distance is corresponding is sent to described MCU, described for asking the request of data of picture data corresponding to described second distance to carry described second distance information;
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
The described picture data corresponding with the first distance is sent to described second participant's terminal.
7. the method according to any one of claim 1 to 6, is characterized in that, described first range information comprises distance level scale corresponding to described first distance.
8. the method according to any one of claim 1 to 7, is characterized in that, described method also comprises:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
9. a method for transfer of data, is characterized in that, described method is performed by multipoint control unit MCU, and described method comprises:
Receive the request of data of the picture data for asking the first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal;
According to the first corresponding relation of described first range information and range information and picture composition type, determine the first picture composition type that described first distance is corresponding;
According to described first picture composition type, generate the picture data that described first distance is corresponding;
Picture data corresponding to described first distance is sent to described conference terminal.
10. method according to claim 9, is characterized in that, described first range information comprises distance level scale corresponding to described first distance.
11. methods according to claim 10, it is characterized in that, described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described the first corresponding relation according to described first range information and range information and picture composition type, determine to comprise the first picture composition type that described first distance is corresponding:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except described conference terminal gathers.
12. methods according to any one of claim 9 to 11, it is characterized in that, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document, and described first corresponding relation comprises the second corresponding relation of picture composition type and range information and content type;
Described according to described first range information, determine the first picture composition type that described first distance is corresponding, comprise: according to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
13. methods according to any one of claim 9 to 12, it is characterized in that, described method also comprises:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal;
If described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
The method of 14. 1 kinds of transfer of data, is characterized in that, described method is performed by conference terminal, and described method comprises:
Receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carrying the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Sending the request of data for the picture data of asking described second picture composition type corresponding to multipoint control unit MCU, describedly carrying described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Receive the picture data corresponding with described second picture composition type from described MCU;
Described corresponding with the second picture composition type picture data is sent to described first participant's terminal.
The method of 15. 1 kinds of transfer of data, is characterized in that, described method is performed by multipoint control unit MCU, and described method comprises:
Receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carrying the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
According to described second picture composition type, generate the picture data that described second picture composition type is corresponding;
Picture data corresponding to described second picture composition type is sent to described conference terminal.
16. 1 kinds of conference terminals, is characterized in that, described conference terminal comprises:
Distance detection module, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal;
Generation module, for generating the request of data for the picture data of asking described first distance corresponding according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information;
Sending module, for sending the request of data of the described picture data for asking described first distance corresponding to multipoint control unit MCU;
Receiver module, for receiving the picture data corresponding with described first distance from described MCU;
Described sending module, also for sending the described picture data corresponding with the first distance to described first participant's terminal.
17. conference terminals according to claim 16, is characterized in that, described conference terminal also comprises acquisition module;
Described acquisition module, for obtaining the first content type of the content of the current display of described conference terminal, described first content type comprises meeting-place video and document; Correspondingly,
Described for asking the request of data of picture data corresponding to described first distance also to carry described first content type;
Correspondingly, the picture data that described first distance is corresponding comprises the picture data corresponding with described first distance and described first content type.
18. conference terminals according to claim 16 or 17, is characterized in that,
Described distance detection module, for:
Ultrasonic signal is sent to described first participant's terminal;
Receive from ultrasound feedback signal corresponding to the described ultrasonic signal of described first participant's terminal;
According to the delivery time of described ultrasonic signal and the very first time between the time of reception of described ultrasound feedback signal poor, determine described first distance.
19. conference terminals according to claim 18 is characterized in that, carry described first participant's terminal and receive the delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal in described ultrasound feedback signal;
Described distance detection module, for:
Poor according to the described very first time, and described first participant's terminal receives the second time difference between delivery time that time of reception of described ultrasonic signal and described first participant's terminal send described ultrasound feedback signal, determines described first distance.
20., according to claim 16 to the conference terminal described in 19 any one, is characterized in that, described obtain the first range information of the first distance of instruction described conference terminal and first participant's terminal after, described apart from detection module, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described sending module, also for:
When described second distance information is identical with described first range information, send picture data corresponding to described first distance, to make the picture data that described in described second participant's terminal demonstration, the first distance is corresponding to described second participant's terminal.
21., according to claim 16 to the conference terminal described in 19 any one, is characterized in that, described obtain the first range information of the first distance of instruction described conference terminal and first participant's terminal after, described apart from detection module, also for:
Obtain the second distance information of the second distance of the described conference terminal of instruction and second participant's terminal;
Described sending module, also for:
The request of data for asking picture data that described second distance is corresponding is sent to described MCU, described for asking the request of data of picture data corresponding to described second distance to carry described second distance information;
Described receiver module, also for:
Receive from described in described MCU for asking the feedback message of the request of data of picture data that described second distance is corresponding, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence;
Described sending module, also for:
The described picture data corresponding with the first distance is sent to described second participant's terminal.
22., according to claim 16 to the conference terminal described in 21 any one, is characterized in that, described first range information comprises distance level scale corresponding to described first distance.
23., according to claim 16 to the conference terminal described in 22 any one, is characterized in that, described sending module, also for:
Described first range information is sent, to make the first range information described in described first participant's terminal demonstration to described first participant's terminal.
24. 1 kinds of multipoint control unit MCU, is characterized in that, described MCU comprises:
Receiver module, for receiving the request of data of the picture data for asking described first distance correspondence from conference terminal, described for asking the first range information carrying instruction first distance in the request of data of picture data corresponding to described first distance, described first distance is the distance between described conference terminal and first participant's terminal;
Determination module, for the first corresponding relation according to described first range information and range information and picture composition type, determines the first picture composition type that described first distance is corresponding;
Generation module, for according to described first picture composition type, generates the picture data that described first distance is corresponding;
Sending module, for sending picture data corresponding to described first distance to described conference terminal, to make the picture data that described in described first participant's terminal demonstration, the first distance is corresponding.
25. MCU according to claim 24, is characterized in that, described first range information comprises distance level scale corresponding to described first distance.
26. MCU according to claim 25, is characterized in that, described distance level scale comprises remote grade, middle distance grade and at least one closely in grade, described determination module, for:
If described first range information is remote grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal; Or,
If described first range information is middle distance grade, then determine the picture data that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the display of described conference terminal, and the picture data of at least one conference terminal collection except described conference terminal except; Or,
If described first range information is closely grade, then determine that picture composition type corresponding to described first distance is used to indicate picture data corresponding to described first distance and comprises the picture data that at least one conference terminal except described conference terminal gathers.
27. MCU according to any one of claim 24 to 26, it is characterized in that, described for asking the first content type of also carrying the content of the current display of described conference terminal in the request of data of picture data corresponding to described first distance, described first content type comprises meeting-place video and document;
Described determination module, for:
According to described first range information, described first content type and described second corresponding relation, determine the first picture composition type that first content type described in described first Distance geometry is corresponding.
28. MCU according to any one of claim 24 to 27, is characterized in that, described receiver module, also for:
Receive the request of data for asking picture data that described second distance is corresponding from conference terminal, described for asking the second distance information carrying instruction second distance in the request of data of picture data corresponding to described second distance, described second distance is the distance between described conference terminal and second participant's terminal;
Described sending module, also for
If described second distance with described first apart from identical, then send described for asking the feedback message of the request of data of picture data that described second distance is corresponding to described conference terminal, described feedback message carries described first range information, and described feedback message is used to indicate the picture data that picture data corresponding to described second distance is described first distance correspondence.
29. 1 kinds of conference terminals, is characterized in that, described conference terminal comprises:
Receiver module, for receiving the request of data for the picture data of asking the second picture composition type corresponding from first participant's terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to the second picture composition type;
Sending module, for sending the request of data for the picture data of asking described second picture composition type corresponding to multipoint control unit MCU, describedly carry described second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Described receiver module, also for receiving the picture data corresponding with described second picture composition type from described MCU;
Described sending module, also for sending described corresponding with the second picture composition type picture data to described first participant's terminal.
30. 1 kinds of multipoint control unit MCU, is characterized in that, described MCU comprises:
Receiver module, for receiving the request of data for the picture data of asking described second picture composition type corresponding from conference terminal, describedly carry the second picture composition type for asking in the request of data of picture data corresponding to described second picture composition type;
Generation module, for according to described second picture composition type, generates the picture data that described second picture composition type is corresponding;
Sending module, for sending picture data corresponding to described second picture composition type to described conference terminal.
The system of 31. 1 kinds of transfer of data, is characterized in that, described system comprises conference terminal and multipoint control unit MCU, wherein:
Described conference terminal, for obtaining the first range information of the first distance of the described conference terminal of instruction and first participant's terminal, the request of data for the picture data of asking described first distance corresponding is generated according to described first range information, described for asking the request of data of picture data corresponding to described first distance to carry described first range information, the request of data of the described picture data for asking described first distance corresponding is sent to multipoint control unit MCU;
Described MCU, for receiving the request of data of the picture data for asking described first distance correspondence from described conference terminal, according to the first corresponding relation of described first range information and range information and picture composition type, determine the first picture composition type that described first distance is corresponding, according to described first picture composition type, generate the picture data that described first distance is corresponding, send picture data corresponding to described first distance to described conference terminal;
Described conference terminal, also for receiving the picture data corresponding with described first distance from described MCU, sends the described picture data corresponding with the first distance to described first participant's terminal.
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