CN101355682B - Method for automatically regulating speed of whole network of wideband private wire conference television system - Google Patents

Method for automatically regulating speed of whole network of wideband private wire conference television system Download PDF

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Publication number
CN101355682B
CN101355682B CN2007101304907A CN200710130490A CN101355682B CN 101355682 B CN101355682 B CN 101355682B CN 2007101304907 A CN2007101304907 A CN 2007101304907A CN 200710130490 A CN200710130490 A CN 200710130490A CN 101355682 B CN101355682 B CN 101355682B
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control unit
multipoint control
higher level
subordinate
terminal
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CN101355682A (en
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黄书平
陈涛
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ZTE Corp
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ZTE Corp
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Abstract

The invention provides method for automatically adjusting the speed of the whole net of a wideband private line meeting television system, wherein a multi-point control unit comprises an upper-level multi-point control unit and a lower-level multi-point control unit. The method is as follows: firstly, speeds of all terminal signal channels on the multi-point control unit are acquired; the minimum value(T) of the speeds of all terminal signal channels is acquired; if the lower-level multi-point control unit is connected, the lower value of the lower-level cascade connection port signal channel speed and the transmission meeting speed of the lower-level multi-point control unit is used as the transmission meeting speed(P) of the lower-level multi-point control unit; the lower value of the P and the T is used as an N; finally, the transmission meeting speed sent downward by the upper-level multi-point control unit is detected; if the N value is less than the transmission meeting speed, the N value is used as the transmission meeting speed to be sent to all terminals and the lower-level multi-point control unit; otherwise, the transmission meeting speed is sent to all terminals and the lower-level multi-point control unit. Due to the application of the invention, the whole net can work at the same speed, thereby ensuring the integrality of system signaling, voice and images, etc., lowering costs and improving the stability of the system.

Description

A kind of method of automatically regulating speed of whole network of wideband private wire conference television system
Technical field
The present invention relates to TV conference system, relate in particular to a kind of method of automatically regulating speed of whole network of wideband private wire conference television system.
Wideband private wire conference television system MCU (multipoint control unit) and high definition terminal (high definition wideband private wire terminal) the whole network automatic lifting speed process is in the hope of the method for final the whole network with a kind of signaling process of speed work
Background technology
In wideband private wire conference television system, Fig. 1 is seen in common more complicated networking, and other networkings can be regarded its extension as.Between MCU and the MCU or the needs between MCU and the terminal many to the E1 private line access, be generally 1-4 carries 2M-8M to the E1 special line special line broadband video conferencing networking.There is x terminal in the supposing the system, y cascade port, with the networking of 8M bandwidth, then whole system exists 4* (x+y) to the E1 special line.Any a pair of existing problems all can cause system works undesired; If system configuration the channel backup function, generally speaking, image abnormity can appear in terminal that breaks down or MCU; Otherwise, then might cause terminal to go offline, the thorough fault of voice and image if there is not the configurating channel backup functionality.
In sum, the technical scheme of a kind of automatically regulating speed of whole network of wideband private wire conference television system of current needs realizes that the whole network works, thereby guarantees the intact of wideband private wire conference television system signaling, voice, image etc. under unified speed.
Summary of the invention
Technical problem to be solved by this invention provides the method for kind of automatically regulating speed of whole network of wideband private wire conference television system, realization the whole network is worked under unified speed, thereby guarantee the intact of wideband private wire conference television system signaling, voice, image etc., improve the stability of wideband private wire conference television system greatly.
In order to address the above problem, the invention provides a kind of method of automatically regulating speed of whole network of wideband private wire conference television system, wherein multipoint control unit comprises higher level's multipoint control unit, subordinate's multipoint control unit, it is characterized in that, may further comprise the steps,
The channel speed of all terminals that insert on a, the described multipoint control unit of acquisition; Obtain minimum value T in the channel speed of all terminals that insert on the described multipoint control unit;
B, judge whether described multipoint control unit hangs with subordinate's multipoint control unit down, if, then subordinate's cascade port channel speed, subordinate's multipoint control unit are sent in the conference rate than the reception conference rate P of low value as subordinate's multipoint control unit; Obtaining among P and the T than low value is N;
The transmission conference rate that c, detection higher level multipoint control unit issue; If the transmission conference rate that the N value issues less than described higher level's multipoint control unit, execution in step d then, otherwise, execution in step e;
D, the transmission conference rate that the N value is issued as higher level's multipoint control unit send to all terminals and subordinate's multipoint control unit;
E, the transmission conference rate that described higher level's multipoint control unit is issued send to all terminals and subordinate's multipoint control unit.
Further, said method also can comprise, among the described step b, if described multipoint control unit is not hung subordinate's multipoint control unit down, then carries out following steps,
The transmission conference rate that o, detection higher level multipoint control unit issue;
If the transmission conference rate that the described T value of p issues less than described higher level's multipoint control unit, execution in step q then, otherwise, execution in step r;
Q, the transmission conference rate that described T value is issued as higher level's multipoint control unit send to all terminals and subordinate's multipoint control unit;
R, the transmission conference rate that described higher level's multipoint control unit is issued send to all terminals and subordinate's multipoint control unit.
Further, said method also can comprise, in the described steps d, also comprises; Described N value is sent to the consulting of higher level's multipoint control unit; Among the described step q, also comprise; Described T value is sent to the consulting of higher level's multipoint control unit.
Further, said method also can comprise, also comprise among the described step e,
The transmission conference rate that described higher level's multipoint control unit is issued sends to the affirmation of higher level's multipoint control unit;
Comprise also among the described step r that the transmission conference rate that described higher level's multipoint control unit is issued sends to the affirmation of higher level's multipoint control unit.
Further, said method also can comprise, higher level's multipoint control unit is received the channel speed of terminal or subordinate's multipoint control unit, if during the transmission conference rate that its value issues greater than described higher level's multipoint control unit, need return to a transmission of terminal or subordinate's multipoint control unit conference rate.
Further, said method also can comprise, the trigger condition of speed change comprises that ability is mutual again for available conference rate variation, terminal or the cascade port disconnection of terminal channel rate variation, subordinate's cascade port, terminal or cascade port upper end or terminal or cascade port.
Further, said method also can comprise, among the described step a,
Exist under the situation of channel backup, described multipoint control unit is taken from the channel speed of the own channel speed that detects as described terminal.
Compared with prior art, use the present invention, realization the whole network is worked under unified speed, thereby guarantees the intact of wideband private wire conference television system signaling, voice, image etc., has reduced cost, improves the stability of wideband private wire conference television system greatly.
Description of drawings
Fig. 1 is typical multi-stage cascade wideband private wire conference television networking diagram;
Fig. 2 is main MCU the whole network automatic lifting speed process chart in the specific embodiment of the invention;
Fig. 3 is from MCU the whole network automatic lifting speed process chart in the specific embodiment of the invention;
Fig. 4 is three grades of MCU the whole network automatic lifting speed process charts in the specific embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described further.
For this patent is described better, define several basic conceptions earlier.
Channel speed: between terminal and the MCU or the n*E1 between MCU and the MCU (n=1,2,3,4) transmission rate.The channel speed that terminal detects is consistent with the channel speed that MCU detects; Carry out channel intersection and speed affirmation by the channel backup function between two entities.The span 1-4 of channel speed.
Conference rate: the final communication speed that all participant terminals are used in one group of meeting; The span 1-4 of conference rate.Mainly comprise following several sections:
Terminal receives conference rate: MCU sends to terminal by nonstandard BAS sign indicating number conference rate.
Terminal sends conference rate: terminal sends to the channel speed of MCU or terminal is received the affirmation of conference rate by nonstandard BAS sign indicating number, and this process is optional.
Receive conference rate from MCU: main MCU sends to the conference rate of MCU at the corresponding levels by nonstandard BAS sign indicating number.
Send conference rate from MCU: all its terminals of attending a meeting of MCU at the corresponding levels (do not comprise and main MCU between cascade port) channel speed, three grades of MCU send the minimum value of conference rates.
Three grades of MCU receive conference rates: main MCU or send to the conference rate of MCU at the corresponding levels by nonstandard BAS sign indicating number from MCU needs to execute.
Three grades of MCU send conference rates: the minimum value of all its terminals of attending a meeting of MCU at the corresponding levels (do not comprise and main MCU or from cascade port between the MCU) channel speed.
Main MCU sends conference rate: promptly final conference rate.All terminal channel speed of attending a meeting of main MCU, all minimum values from MCU and three grades of MCU cascade port transmission conference rates; Also be reception conference rate from MCU and three grades of MCU, the reception conference rate of all terminals of attending a meeting on each MCU of this MCU and subordinate and the final speed of carrying out.
Among the present invention, a terminal that the MCU of subordinate is invented higher level MCU is its core methed.Every grade of MCU only has 1 cascade port with higher level MCU except that main MCU, but can have a plurality of and the cascade port MCU of subordinate, and any MCU can insert a plurality of terminals.The MCU of subordinate must respond (carry out and confirm or the request change) to the speed instruction of higher level MCU, and terminal must unconditionally be carried out the nonstandard BAS bit rate instruction that MCU comes.
Three grades of MCU calculate the minimum speed limit that it inserts all terminals, and must report to higher level MCU, wait for indication and the affirmation of higher level MCU.
Calculate the minimum speed limit that it inserts all terminals and the MCU of subordinate from MCU, and must report, wait for indication and the affirmation of higher level MCU to higher level MCU.
Main MCU calculates its minimum speed limit that inserts all terminals and the MCU of subordinate, and this is the final speed of meeting, and must obtain the firm execution of all terminals and MCU in the network, to guarantee that the whole network is with speed work.
The trigger condition of any MCU speed and terminal change has: the available conference rate that MCU detects terminal channel rate variation, cascade port changes, and terminal (cascade port) disconnects, terminal (cascade port) upper end, terminal (cascade port) processes such as ability is mutual again.
Fig. 2 has described the flow chart of the processing of main MCU, and is specific as follows,
Step 110, the main MCU of acquisition go up the channel speed Ti of all terminals that insert;
Exist under the situation of channel backup, owing to the channel speed that MCU detects is consistent to the channel speed of MCU report by nonstandard BAS sign indicating number with terminal forever, MCU directly takes from the channel speed of the own channel speed that detects as terminal.
Step 120, obtain minimum value T among the Ti;
T＝min(T1，T2，...，Tn)。
Step 130, judge whether main MCU hangs with the MCU of subordinate down, if then execution in step 140; Otherwise, execution in step 181;
The MCU of subordinate comprises from MCU or three grades of MCU etc.
Step 140, obtain down cascade message road speed be Xi, the MCU of subordinate to send conference rate be Yi, the reception conference rate that then obtains the MCU of subordinate be Bi=min (Xi, Yi);
Step 150, obtain the minimum value Ta among Bi and the T;
Ta＝min(T，B1，B2，...，Bm)。
Step 160, transmission Ta value are to all MCU of subordinate;
Send the Ta value by nonstandard BAS sign indicating number to all MCU of subordinate.
Step 170, transmission Ta value are to all terminals;
Send the Ta value by nonstandard BAS sign indicating number to all terminals, it is Ta that the terminal of all terminals receives conference rate.
Step 180, main MCU detect channel speed variation, terminal or cascade port disconnection, the terminal of terminal or cascade port or cascade port upper end or terminal or cascade port processes such as ability is mutual again, execution in step 110;
The trigger condition of speed change has: the available conference rate of terminal channel rate variation, cascade port changes, and terminal (cascade port) disconnects, terminal (cascade port) upper end, terminal (cascade port) processes such as ability is mutual again.
Main MCU receives the channel speed of terminal or cascade port, when being worth greater than conference rate as if it, need return to conference rate of the other side, in order to avoid the other side produces faulty operation.
Step 181, transmission T value are to all MCU of subordinate;
Send the T value by nonstandard BAS sign indicating number to all MCU of subordinate.
Step 182, transmission T value are to all terminals;
Send the T value by nonstandard BAS sign indicating number to all terminals, it is T that the terminal of all terminals receives conference rate.
Step 183, main MCU detect channel speed variation, terminal or cascade port disconnection, the terminal of terminal or cascade port or cascade port upper end or terminal or cascade port processes such as ability is mutual again, execution in step 110;
The trigger condition of speed change has: the available conference rate of terminal channel rate variation, cascade port changes, and terminal (cascade port) disconnects, terminal (cascade port) upper end, terminal (cascade port) processes such as ability is mutual again.
Main MCU receives the channel speed of terminal or cascade port, when being worth greater than conference rate as if it, need return to conference rate of the other side, in order to avoid the other side produces faulty operation.
Fig. 3 has described from the flow chart of the processing of MCU, and is specific as follows,
Step 210, obtain from the channel speed Tsi of all terminals of MCU access;
Exist under the situation of channel backup, because the channel speed that MCU detects is consistent to the terminal channel speed of MCU report by nonstandard BAS sign indicating number with terminal forever, MCU directly takes from the channel speed of the own channel speed that detects as terminal.
Step 220, obtain minimum value Ts among the Tsi;
Ts＝min(Ts1，Ts2，...，Tsn)。
Whether step 230, judgement hang with the MCU of subordinate down from MCU, if then execution in step 240; Otherwise, execution in step 260;
The MCU of subordinate comprises three grades of MCU etc.
Step 240, obtain subordinate's cascade port channel speed be Xsi, the MCU of subordinate to send conference rate be Ysi, the reception conference rate that then obtains the MCU of subordinate be Bsi=min (Xsi, Ysi);
Obtaining three-stage cascade message road speed and be Xsi, three grades of MCU, to send conference rates be Ysi, the reception conference rate that then obtains three grades of MCU be Bsi=min (Xsi, Ysi).
Step 250, obtain minimum value Tsa among Bsi and the Ts;
Tsa＝min(Ts，Bs1，Bs2，...，Bsm)。
The transmission conference rate A that step 260, detection higher level MCU issue;
If the transmission conference rate A that step 270 Tsa value issues less than higher level MCU, then execution in step 280, otherwise, execution in step 290;
Step 280, Tsa value send to higher level MCU consulting; The transmission conference rate that the Tsa value issues as higher level MCU sends to all terminals and the MCU of subordinate, execution in step 260;
The Tsa value sends to all terminals and three grades of MCU by nonstandard BAS sign indicating number as the transmission conference rate that higher level MCU issues.
Step 290, A value send to higher level MCU and confirm;
The A value sends main MCU to by nonstandard BAS sign indicating number.
Step 300, A value send to all terminals and the MCU of subordinate carries out;
The A value sends to all terminals and the MCU of subordinate by nonstandard BAS sign indicating number.
Step 310, the channel speed that detects terminal or cascade port from MCU change or terminal (cascade port) disconnects or terminal (cascade port) upper end or terminal (cascade port) processes such as ability is mutual again, execution in step 210.
The trigger condition of speed change has: the available conference rate of terminal channel rate variation, cascade port changes, and terminal (cascade port) disconnects, terminal (cascade port) upper end, terminal (cascade port) processes such as ability is mutual again.
Receive the channel speed of terminal or cascade port from MCU, if its value during greater than conference rate, need be returned to conference rate of the other side, in order to avoid the other side produces faulty operation.
Fig. 4 has described the flow chart of the processing of three grades of MCU, and is specific as follows,
Step 410, obtain from the channel speed Tti of all terminals of MCU access;
Exist under the situation of channel backup, because the channel speed that MCU detects is consistent to the terminal channel speed of MCU report by nonstandard BAS sign indicating number with terminal forever, MCU directly takes from the channel speed of the own channel speed that detects as terminal.
Step 420, obtain minimum value Tt among the Tti;
Tt＝min(Tt1，Tt2，...，Ttn)。
The transmission conference rate A that step 430, detection higher level MCU issue;
If the transmission conference rate A that step 440 Tt value issues less than higher level MCU, then execution in step 450, otherwise, execution in step 460;
Step 450, Tt value send to higher level MCU consulting; The Tt value sends to all terminals as the transmission conference rate that higher level MCU issues, execution in step 430;
The Tt value sends to all terminals by nonstandard BAS sign indicating number as the transmission conference rate that higher level MCU issues.
Step 460, A value send to higher level MCU and confirm;
The A value sends higher level MCU to by nonstandard BAS sign indicating number.
Step 470, A value send to all terminals and carry out;
The A value sends to all terminals by nonstandard BAS sign indicating number.
The channel speed that step 480, three grades of MCU detect terminal changes or terminal disconnects or terminal upper end or terminal processes such as ability is mutual again, execution in step 410.
The trigger condition of speed change has: terminal channel rate variation, terminal disconnect, terminal upper end, terminal processes such as ability is mutual again.
Three grades of MCU receive the channel speed of terminal, when being worth greater than conference rate as if it, need return to conference rate of the other side, in order to avoid the other side produces faulty operation.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (7)

1. the method for an automatically regulating speed of whole network of wideband private wire conference television system, wherein multipoint control unit comprises higher level's multipoint control unit, subordinate's multipoint control unit, it is characterized in that, may further comprise the steps,
The channel speed of all terminals that insert on a, the described multipoint control unit of acquisition; Obtain minimum value T in the channel speed of all terminals that insert on the described multipoint control unit;
B, judge whether described multipoint control unit hangs with subordinate's multipoint control unit down, if, then subordinate's cascade port channel speed, subordinate's multipoint control unit are sent in the conference rate than the reception conference rate P of low value as subordinate's multipoint control unit; Obtaining among P and the T than low value is N;
The transmission conference rate that c, detection higher level multipoint control unit issue; If the transmission conference rate that the N value issues less than described higher level's multipoint control unit, execution in step d then, otherwise, execution in step e;
D, the transmission conference rate that the N value is issued as higher level's multipoint control unit send to all terminals and subordinate's multipoint control unit;
E, the transmission conference rate that described higher level's multipoint control unit is issued send to all terminals and subordinate's multipoint control unit.
2. the method for claim 1 is characterized in that, among the described step b, if described multipoint control unit is not hung subordinate's multipoint control unit down, then carries out following steps,
The transmission conference rate that o, detection higher level multipoint control unit issue;
If the transmission conference rate that the described T value of p issues less than described higher level's multipoint control unit, execution in step q then, otherwise, execution in step r;
Q, the transmission conference rate that described T value is issued as higher level's multipoint control unit send to all terminals and subordinate's multipoint control unit;
R, the transmission conference rate that described higher level's multipoint control unit is issued send to all terminals and subordinate's multipoint control unit.
3. method as claimed in claim 2 is characterized in that, in the described steps d, also comprises; Described N value is sent to the consulting of higher level's multipoint control unit; Among the described step q, also comprise; Described T value is sent to the consulting of higher level's multipoint control unit.
4. as claim 2 or 3 described methods, it is characterized in that, also comprise among the described step e,
The transmission conference rate that described higher level's multipoint control unit is issued sends to the affirmation of higher level's multipoint control unit;
Comprise also among the described step r that the transmission conference rate that described higher level's multipoint control unit is issued sends to the affirmation of higher level's multipoint control unit.
5. as claim 1,2 or 3 described methods, it is characterized in that, also comprise,
Higher level's multipoint control unit is received the channel speed of terminal or subordinate's multipoint control unit, if during the transmission conference rate that its value issues greater than described higher level's multipoint control unit, need return to a transmission of terminal or subordinate's multipoint control unit conference rate.
6. as claim 1,2 or 3 described methods, it is characterized in that, the trigger condition of speed change comprises that ability is mutual again for available conference rate variation, terminal or the cascade port disconnection of terminal channel rate variation, subordinate's cascade port, terminal or cascade port upper end or terminal or cascade port.
7. as claim 1,2 or 3 described methods, it is characterized in that, among the described step a,
Exist under the situation of channel backup, described multipoint control unit is taken from the channel speed of the own channel speed that detects as described terminal.
CN2007101304907A 2007-07-23 2007-07-23 Method for automatically regulating speed of whole network of wideband private wire conference television system Expired - Fee Related CN101355682B (en)

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CN103974027B (en) * 2014-05-26 2018-03-02 中国科学院上海高等研究院 Real-time communication method and system of the multiterminal to multiterminal
CN108040218A (en) * 2017-12-20 2018-05-15 苏州科达科技股份有限公司 The means of communication and communication apparatus of a kind of video conference

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703637A (en) * 1993-10-27 1997-12-30 Kinseki Limited Retina direct display device and television receiver using the same
EP0865207A2 (en) * 1997-03-13 1998-09-16 Kabushiki Kaisha Toshiba Image telecommunication system
WO1999012351A1 (en) * 1997-09-05 1999-03-11 Intelect Communications, Inc. Distributed video communications system
EP1201082B1 (en) * 2000-04-28 2003-09-03 Swisscom Mobile AG Method and system for video conferences
CN1455597A (en) * 2002-04-29 2003-11-12 深圳市中兴通讯股份有限公司 Motion image expert group-2 transimitting flow transmitting method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5703637A (en) * 1993-10-27 1997-12-30 Kinseki Limited Retina direct display device and television receiver using the same
EP0865207A2 (en) * 1997-03-13 1998-09-16 Kabushiki Kaisha Toshiba Image telecommunication system
WO1999012351A1 (en) * 1997-09-05 1999-03-11 Intelect Communications, Inc. Distributed video communications system
EP1201082B1 (en) * 2000-04-28 2003-09-03 Swisscom Mobile AG Method and system for video conferences
CN1455597A (en) * 2002-04-29 2003-11-12 深圳市中兴通讯股份有限公司 Motion image expert group-2 transimitting flow transmitting method

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