CN1885783A - Intelligent remote digital conference system - Google Patents

Abstract

The disclosed intelligent remote digital conference system comprises: a main control unit, a video monitor unit, a remote multiplexing conference interface, and terminal composed by the control sub-machine, the chairman machine, and some deputy machines, wherein the conference control unit connects with remote multiplexing machine.

Description

Intelligent remote digital conference system

Technical field

The present invention relates to a kind of special-purpose conference communications system, be meant intelligent remote digital conference system especially.

Background technology

Existing audio amplifier system for meeting can only be used for amplifying of meeting-place, can not participant any user outside the venue link up, seek advice from, and also is not easy to other meeting-place of long-range access, its function singleness, and the definition that amplifies is not enough.System's existence is uttered long and high-pitched sounds, and can't hold videoconference, can not realize interconnecting between meeting-place and meeting-place.Existing simultaneously conference system underaction, the speech limited amount causes easily and is badly in need of the phenomenon that the speaker can't open microphone, causes use very inconvenient.Chinese patent is in disclosed a kind of intelligent audio amplifier system for meeting on May 31st, 2000, and number of patent application is 98124935,3.This patent application by main controller, telephone connection device, public network switch, chairman's machine, vice-president's extension set, represent extension set to form.Though function such as this system has the intrusion of chipping in, toll breakdown represents the extension set can only a speech, and the teleconference communication also is subjected to certain restriction.

Summary of the invention

Technical problem to be solved by this invention is to avoid above-mentioned deficiency of the prior art, and proposes a kind of long-range access of being convenient to, and is convenient to participant user communication outside the venue, and machine representation intelligent remote digital conference system easy to use.

Technical scheme provided by the present invention is:, it includes main control unit, video monitoring unit, it is characterized in that: it also is provided with remote multi-path meeting tandem machine interface, terminating machine, wherein, terminating machine comprises meeting control extension set, chairman's machine, some machine representations can making a speech simultaneously; Described main control unit is connected with chairman's machine, meeting control extension set, some machine representations can making a speech simultaneously, video monitoring unit respectively, and meeting control extension set is connected with remote multi-path meeting tandem machine interface.

Described main control unit comprises central control unit, this locality/videoconference commutation circuit, videoconference interface, high-fidelity power amplifier, loud speaker, power supply.

Described central control unit comprises sound control circuit, the automatic access control of meeting unit, o controller, central controller, power supply.

The control circuit of described main control unit comprises integrated chip, operational amplifier, socket, transformer, LED display circuit, optical coupling pipe, power circuit.

Described terminating machine comprises integrated chip, socket, relay, transistor amplifier circuit, optical coupling pipe, microphone, loud speaker.

Be between 7 pin of the gang socket of described machine representation and 8 pin that high resistant inserts, its attenuation is little, can realize that a plurality of machine representations make a speech simultaneously and be independent of each other.

Described operational amplifier comprises comparison amplifier, is adjudicated by this comparison amplifier, during the voice in receiving remote meeting-place, turn-offs transtation mission circuit; When remote site sends voice, turn-off receiving circuit; Cut off the feedback loop of far-end, the phenomenon of uttering long and high-pitched sounds is eliminated in the blocking-up positive feedback.

The socket of described terminating machine with have the telephony feature module and link to each other, meeting function and two kinds of functions of telephony feature are bonded within the terminal.

The present invention has following advantage: (1) is convenient to other meeting-place of long-range access, can participant any user outside the venue link up, seek advice from; (2) to get involved attenuation little for machine representation, can many speeches simultaneously during meeting, avoid the restriction of factor amount, make be badly in need of speech can't open microphone; (3) the integrated local conferencing function of a whole set of digital conference system, remote phone conferencing function and video monitoring function, each meeting speech equipment both can be used as a spokesman of remote phone meeting, also used as common two line phones; (4) original conference system because loud speaker and the microphone of far-end form positive feedback easily, causes and utters long and high-pitched sounds when inserting teleconference, has reduced the speech quality of teleconference, in the time of seriously even flood normal conversation.And the present invention is provided with the anti-circuit of uttering long and high-pitched sounds of sound control, during the voice in receiving remote meeting-place, turn-offs transtation mission circuit; When remote site sends voice, turn-off receiving circuit; Cut off the feedback loop of far-end, blocked positive feedback, eliminated the phenomenon of uttering long and high-pitched sounds; (5) Yi Qian conference system is got in touch outside line if desired and function such as is seeked advice from outside the venue, must place two terminals in face of each delegate to the meeting, and one one is conference terminal, and another one is the plain old telephone terminal.Link to each other with the telephony feature module by conference terminal machine transplanting of rice seat of the present invention, realized that conferencing function engages with the perfection of telephony feature, two kinds of functions are bonded on a terminal inner, the complexity of system reduces, and wiring reduces, and has saved cost.

Description of drawings

Fig. 1 is a block diagram of the present invention;

Fig. 2 is a main control unit block diagram of the present invention;

Fig. 3 is a central control unit block diagram of the present invention;

Fig. 4 is the first of main control unit circuit diagram of the present invention;

Fig. 5 is the second portion of main control unit circuit diagram of the present invention;

Fig. 6 is the circuit diagram of terminating machine of the present invention.

Illustrate: 1 main control unit, 2 chairman's machines, 3 machine representations, 4 meetings control extension set, 5 tandem machine interfaces, 6 central control units, 7 this locality/videoconference commutation circuit, 8 high-fidelity power amplifiers, 9 loud speakers, 10 videoconference interfaces, 11 power supplys, 12 central controllers, 13 o controllers, the automatic access control of 14 meetings unit, 15 sound control circuit, 16 power supplys, IU2, IU3, IU6, the IU7 integrated chip, IU1A, IU1B, IU4A, IU4B, IU4C, IU4D, IU5A, IU5B, IU5C, the IU5D operational amplifier, OUT1-OUT7, RJ11A, RJ11B, the XH1-XH8 socket, IC1, the IC2 integrated chip, IC3-IC7, U4, U5, U6, U7 optical coupling pipe, IT1, IT2, IT3, IT4, IT5, the T transformer, 17,18,19,20 power circuits, the 21LED display circuit, K1, K2, K3, the K4 relay, K1B, K1C, K2B, K2C, K3B, K3C, K4A, the K4B contact, the MT2 node, N1, the N2 triode, D1-D2, ID1, ID2, the ID3 diode; In Fig. 4, Fig. 5: R1-R12, IR1-IR57 resistance, IC1-IC51, IE1-IE16, C1-C14, E1-E14 electric capacity; In Fig. 6, R1-R18 resistance, C1-C7, E1-E7 electric capacity.

Embodiment

Below in conjunction with description of drawings the specific embodiment of the present invention.

One course of work of the present invention

As Fig. 1, Fig. 2, shown in Figure 3:

1. local meeting

Open on main control unit 1 mains switch → start → main control unit 1 panel local meeting indicator light bright → chairman's machine 2 (machine representation 3) presses on ﹠ off switch → panel leds, microphone indicating ring red light is bright → speech

Chairman's machine 2 is chipped in → is made a speech by break-in key → microphone blinking red lamp → all machine representations of opening 3, the flicker → interruption of microphone indicator light

End → chairman's the machine 2 of chipping in unclamps break-in key → machine representation 3 recovery → chairman's machines 2 indicator lights and extinguishes

2 remote phone meetings

Meeting control extension set 4 is pressed teleconference start key → teleconference indicator light, and bright → connection tandem machine interface 6 → main control unit 1 enters videoconference state → chairman's machine 2 (machine representation 3) and presses on ﹠ off switch → access remote phone meeting-place

Meeting control extension set 4 call peer meeting-place numbers (unique user number) → connection back → insert key → whole local system by control extension set 4 panels to insert meeting-place, a distant place (whole local meeting-place and unique user are connected)

Dispatching desk is dialed local main control unit 1 → local conference system and is transferred remote phone meeting → local main control unit indicator light automatically to and extinguish, and the teleconference indicator light is bright.

Two operation principles of the present invention

As Fig. 1-shown in Figure 6:

1 local meeting

1) starts chairman's machine 2 (machine representations 3) and carry out local meeting speech, see Fig. 6

Press the IC2 integrated chip 3 of the speech key → terminal of chairman's machine 2 (machine representation 3), 5 pin action → relay K 1, K2 action → voice signal is through 1 of XH1 MIC microphone jack XH1,2 pin → composite amplifier N1, after N2 amplifies → through capacitor C 3,7 of C4 → XH5,8 pin → A, 7 of the OUT5RJ45 socket of the meeting main controller of B end → (Fig. 4), 8 pin → IT1 transformer → through the IU1A operational amplifier amplify → carry out audio frequency amplification → OUT1 socket → power amplifier → loudspeaker through capacitor I C6 → K3B contact → MT2 node → 1U3 small power amplifier.

(→ IT2, IT4 → OUT7, OUT2 → sound console).

2) dial outside line with chairman's machine 2 (machine representation 3), see Fig. 6.

A) hands-free

1,4 pin of terminal XH6 socket are that hands-free 2,3 pin direct and XH4 are connected, and 2,3 pin of XH4 directly are communicated with telephone wire, but dial-in direct.

B) handle

Pick up the handle of terminating machine, the K4 actuating of relay, K4A, K4B contact are connected to 3,6 pin of XH6, and dialing tone arrives outside line by 3,6 pin of XH6 through 2,3 pin of XH4.

Fig. 6 is seen in 2 videoconferences, Fig. 5.

A) breathe out

4 dialing (Fig. 5) of meeting control extension set → through 2 of RJ11B, 2 of 3 pin → RJ11A, 3 pin → telephone wire → put through back → press C key (or the switch key on the main controller the panel) → K1B on the control extension set 4, K1C action of relay contact → voice are through 7 of OUT5,8 pin (AB two ends) Fig. 4 → integrated 11# pin of 1U1A amplification → 1U2 (controlled pin) → 1U2 integrated chip sheet 8# output → IU4B buffer → IU5C, IU5D, IU5A balance/imbalance conversion → 1T3 transformer → LA, LB output → Fig. 5 → LA, LB input → K1B, K1C contact → RJ11A terminal 2,3 connect with telephone wire.

B) incoming call

Telephone wire ringing-current → RJ11A 2,3 pin → K1B, K1C contact → K2B, K2C contact → RJ11B 2, C key (or the switch key on the main controller panel) on the meeting control extension set 4 of the logical back of 3 pin → call-conference control extension set 4 → cry → press → with outside line and local meeting connection → voice is by LA, LB input → Fig. 4 → 1T3 transformer → 1U5A → relatively 22 pin output → 1U3 amplification → OUT1 output → audio frequency amplification of the 2 pin input → IU2 of amplification back → capacitor I C34 → IU2.

The embodiment of the concrete feature of three the present invention

As shown in Figure 6, it is little that machine representation is got involved attenuation, can many speeches simultaneously during meeting, avoid the restriction of factor amount, make be badly in need of speech can't open microphone.Its principle is: 7,8 pin of XH5, and promptly A, B end inserts for the 200K high resistant, and attenuation is little, so can a plurality of delegates to the meeting makes a speech simultaneously and unaffected.

As shown in Figure 4, original conference system because loud speaker and the microphone of far-end form positive feedback easily, causes and utters long and high-pitched sounds when inserting teleconference, has reduced the speech quality of teleconference, in the time of seriously even flood normal conversation.And be provided with the anti-circuit of uttering long and high-pitched sounds of sound control in the invention, promptly the IU5A comparison amplifier among Fig. 4 is adjudicated by IU5A, during the voice in receiving remote meeting-place, turn-offs transtation mission circuit; When remote site sends voice, turn-off receiving circuit; Cut off the feedback loop of far-end, blocked positive feedback, eliminated the phenomenon of uttering long and high-pitched sounds.

As shown in Figure 6, telephony feature and conferencing function unite two into one.Conference system is in the past got in touch outside line if desired and function such as is seeked advice from outside the venue, must place two terminals in face of each delegate to the meeting, and one one is conference terminal, and another one is the plain old telephone terminal.XH6 socket by conference terminal machine of the present invention (control extension set 4, chairman's machine 2, machine representation 3) links to each other with the telephony feature module, realized that conferencing function engages with the perfection of telephony feature, two kinds of functions are bonded on a terminal inner, the complexity of system reduces, wiring reduces, and has saved cost.

Four circuit elements device models, parameter

IU2-MC34118，IU3-TDA7052，IU6-LM7805，IU7-LM317，IU1A、IU1B-TL082，IU4A、IU4B、IU4C、IU4D-TL084，IU5A、IU5B、IU5C、IU5D-LMC660，OUT1-2510-3P，OUT3-SRJ11，OUT4-4PN，OUT5-RJ45，OUT6-HB95002，IC1-MC7805T，IC2-0508A，IC3-IC7、U4、U5、U6、U7-TIL113，N1-BC849C，N2-BC847C，R1、R4-5K，R2、R3、R8、R11、R12-10K，R5、R6-510Ω，R9-510K，R10-330Ω。

Claims (8)

1, a kind of intelligent remote digital conference system, include main control unit, video monitoring unit, it is characterized in that: it also is provided with remote multi-path meeting tandem machine interface, terminating machine, and wherein, terminating machine comprises meeting control extension set, chairman's machine, some machine representations can making a speech simultaneously; Described main control unit is connected with chairman's machine, meeting control extension set, some machine representations can making a speech simultaneously, video monitoring unit respectively, and meeting control extension set is connected with remote multi-path meeting tandem machine interface.

2, intelligent remote digital conference system according to claim 1 is characterized in that: described main control unit comprises central control unit, this locality/videoconference commutation circuit, videoconference interface, high-fidelity power amplifier, loudspeaker, power supply.

3, intelligent remote digital conference system according to claim 2 is characterized in that: described central control unit comprises sound control circuit, the automatic access control of meeting unit, o controller, central controller, power supply.

4, intelligent remote digital conference system according to claim 1 is characterized in that: the control circuit of described main control unit comprises integrated chip, operational amplifier, socket, transformer, LED display circuit, optical coupling pipe, power circuit.

5, intelligent remote digital conference system according to claim 1 is characterized in that: described terminating machine comprises integrated chip, socket, relay, transistor amplifier circuit, optical coupling pipe, microphone, loud speaker.

6, intelligent remote digital conference system according to claim 1 or 5 is characterized in that: be that high resistant inserts between 7 pin of the gang socket of described machine representation and 8 pin, its attenuation is little, can realize that a plurality of machine representations make a speech simultaneously and be independent of each other.

7, intelligent remote digital conference system according to claim 4 is characterized in that: described operational amplifier comprises comparison amplifier, is adjudicated by this comparison amplifier, during the voice in receiving remote meeting-place, turn-offs transtation mission circuit; When remote site sends voice, turn-off receiving circuit; Cut off the feedback loop of far-end, the phenomenon of uttering long and high-pitched sounds is eliminated in the blocking-up positive feedback.

8, intelligent remote digital conference system according to claim 1, the socket that it is characterized in that described terminating machine with have the telephony feature module and link to each other, meeting function and two kinds of functions of telephony feature are bonded within the terminal.

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