CN201479300U - Visual intercommunicating indoor set system - Google Patents
Visual intercommunicating indoor set system Download PDFInfo
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- CN201479300U CN201479300U CN2009202041689U CN200920204168U CN201479300U CN 201479300 U CN201479300 U CN 201479300U CN 2009202041689 U CN2009202041689 U CN 2009202041689U CN 200920204168 U CN200920204168 U CN 200920204168U CN 201479300 U CN201479300 U CN 201479300U
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Abstract
The utility model discloses a visual intercommunicating indoor set system, comprising an indoor set and an indoor extension set, wherein the indoor set comprises a transfer switch and a communication driving circuit, the indoor extension set comprises a singlechip, a key switch, a power amplifier, an amplifier, a microphone, a loudspeaker and a communication driving circuit. The transfer switch of the indoor set selectively switches over the indoor set or the microphone of indoor extension set under the control of a multimedia processor into an input amplifying network and an audio-frequency input/output unit, and transmits audio-frequency signals to the multimedia processor. The singlechip of the indoor extension set is communicatively connected with the communication driving circuit of the indoor set through the communication driving circuit of the indoor extension set, and outputs a control signal that is transmitted to the multimedia processor of the indoor set through the communication driving circuit in order to drive the multimedia processor to control the transfer switch.
Description
Technical field
The utility model relates to video intercom equipment, relates in particular to a kind of video intercom indoor set system.
Background technology
The framework of existing building visual intercom system usually as shown in Figure 1, comprise a plurality of indoor sets in cell management machine, unit doorway machine and this unit, indoor set is connected by network with unit doorway machine and cell management machine, indoor set, be meant the intercommunication machine in each family man, can merchandiser unit's doorway machine, the cell management machine carries out exchanges data such as intercommunication; The unit doorway machine is meant the intercommunication machine at the gate, doorway downstairs of each building, can carry out intercommunication by switch and selected indoor set.
It is indoor that indoor set in the existing building conversational system is fixedly mounted on the user usually, all need to go to answer and open the door when having the guest visiting to hard-wired place at every turn, use very inconvenient, this inconvenience is more obvious in the big or duplex of particularly more in the room, area, now a lot of users adopt the method that a plurality of indoor sets are installed to address this problem, but increased the quantity of intercom and wiring so again, equipment cost and engineering cost increase more.
In view of above situation, be necessary to provide a kind of video intercom indoor set system, make the user need not increase excessive cost and promptly can in the room, be convenient to use talk back equipment.
The utility model content
The technical solution of the utility model comprises:
A kind of video intercom indoor set system, comprise an indoor set and at least one indoor unit, described indoor set comprises that multimedia processor, video input unit, RAM, ROM, audio frequency input-output unit, input amplify network, microphone, power amplification circuit, loud speaker, diverter switch and communication drive circuit, and described indoor unit comprises single-chip microcomputer, signal input device, at least one power amplifier, amplifier, microphone, loud speaker and the communication drive circuit identical with power amplifier quantity; The loud speaker of described indoor unit is connected with the audio frequency input-output unit communication of indoor set by corresponding power amplifier; The microphone of described indoor unit is connected with the diverter switch communication of indoor set by amplifier; The diverter switch of described indoor set is under the control of multimedia processor, and selectivity is switched the microphone of indoor set or indoor unit successively by behind input amplification network and the audio frequency input-output unit audio signal transmission being arrived multimedia processor; The single-chip microcomputer of described indoor unit is by its communication drive circuit and the multimedia processor communication of finishing after the communication drive circuit communication of indoor set is connected with indoor set; Described signal input device is connected with single-chip microcomputer, drives to make single-chip microcomputer export a control signal to be transferred to the multimedia processor of indoor set by communication drive circuit, to drive the multimedia processor control its switch.
Described video intercom indoor set system, wherein, the power amplifier of indoor unit and loud speaker are two, support the audio frequency output of hands-free and handle mode respectively.
Described video intercom indoor set system, wherein, the communication drive circuit in described indoor set and the indoor unit is the RS485 chip.
Described video intercom indoor set system, wherein, described signal input device is a key switch.
Video intercom indoor set provided by the utility model system comprises an indoor set and at least one indoor unit, can enable the intercommunication function of indoor set by any indoor unit, and the structure of indoor unit is comparatively simple, and is with low cost.
Description of drawings
Fig. 1 is the block architecture diagram of existing building visual intercom system;
Fig. 2 is the structured flowchart of the utility model video intercom indoor set system better embodiment.
Embodiment
Below in conjunction with accompanying drawing, will be described in more detail better embodiment of the present utility model.
As shown in Figure 2, a kind of video intercom indoor set system comprises an indoor set 10 and an indoor unit 20, and described indoor set 10 comprises that multimedia processor 102, video input unit 104, RAM106, ROM108, audio frequency input-output unit 110, input amplify network 112, diverter switch 114, microphone (MIC) 116, power amplification circuit 118, loud speaker 120 and RS485 communication drive circuit 122; Described indoor unit 20 comprises single-chip microcomputer 202, key switch 204, two power amplifiers 206 and 208, amplifier 210, microphone (MIC) 212, two- loudspeaker 214 and 216 and RS485 communication drive circuit 218.
The connection and the work relationship of multimedia processor 102, video input unit 104, RAM106, ROM108, audio frequency input-output unit 110, input amplification network 112, microphone (MIC) 116, power amplification circuit 118 and loud speaker 120 are conventionally known to one of skill in the art in the above-mentioned indoor set 10, do not repeat them here; The loud speaker 214 of described indoor unit 20 is connected with audio frequency input-output unit 110 communications of indoor set 10 with 206 by power amplifier 208 with 216 difference are corresponding; The microphone 212 of described indoor unit 20 is connected with diverter switch 114 communications of indoor set 10 by amplifier 210; The diverter switch 114 of described indoor set 10 is under the control of multimedia processor 102, and selectivity is switched the microphone 116 or 212 of indoor set 10 or indoor unit 20 successively by behind input amplification network 112 and the audio frequency input-output unit 110 audio signal transmission being arrived multimedia processor 102; The single-chip microcomputer 202 of described indoor unit 20 by its RS485 communication drive circuit 218 with finish after RS485 communication drive circuit 122 communications of indoor set 10 are connected and the multimedia processor 102 of indoor set 10 between communication; Described key switch 204 is connected with single-chip microcomputer 202, make single-chip microcomputer 202 outputs one control signal after being pressed, be transferred to the multimedia processor 102 of indoor set 10 by RS485 communication drive circuit 218 and 122, drive the microphone 212 that multimedia processor 102 control its switch 114 are chosen indoor unit 20.
In general, intercom system all is that only design inserts No. one microphone, because microphone output signal is more weak signal, is interfered easily simultaneously, and simple in parallel the access cannot be worked especially.Therefore in better embodiment of the present utility model, the MIC of indoor unit 20 amplifies weak signal by amplifier 210 and strengthens, be input to indoor set 10 then, indoor set 10 switches which the MIC work of selecting by electronic switch 114, then, the audio signal of the MIC of gating is amplified under the effect of network 112 in input, filtering interference amplifies useful signal, be input to audio frequency input-output unit 110, through handling like this, can realize 20 to 30 meters long distance transmission and keep audio frequency effect good.
The multimedia processor 102 of indoor set 10 is the audio signal of far-end, through 110 outputs of audio frequency input-output unit, outputs to the power amplification circuit 118 of indoor set on the one hand, outputs to two power amplifiers 206 and 208 of indoor unit 20 on the one hand.These power amplifiers all have Enable Pin, the loudspeaker of indoor set 10 like this, and the hands-free loudspeaker of indoor unit 20 and handle loudspeaker 214 and 216 just can come the Control work state as required.
Getting in touch by RS485 communication drive circuit 122 and 218 between indoor set 10 and the indoor unit 20 realizes, makes to be easy to distinguish the operating state of two machines and to coordinate control.
By indoor set 10 intercommunications the time:
Like this, the microphone 116 of indoor set 10 amplifies network 112 to audio signal through input, enters audio frequency input-output unit 110, sends into multimedia processor 102 through behind the A/D, voice data is sent to the intercommunication user of far-end through network.At this moment, the microphone 212 of indoor unit 20 is not selected as input, and simultaneously, the loudspeaker of indoor unit 20 drive power amplifier 206 and 208 and all are in not enabled state.
By indoor unit 20 intercommunications the time:
User's operation push-button switch 204 of operation on indoor unit 20, single-chip microcomputer 202 sends to control signal corresponding on the indoor set 10 by RS485 communication drive circuit 218, indoor set 10 selects microphone 212 inputs of indoor unit 20 to import as audio frequency, simultaneously, single-chip microcomputer drives at state hands-free or the handle dialogue by enable power amplifier 206 and 208.
In better embodiment of the present utility model, described indoor unit 20 only has one one, as other execution mode, described indoor unit also can be multi-section, connected mode identical with better embodiment in identical, and key switch 204 also can be other signal input devices such as keyboard or touch-screen, makes single-chip microcomputer obtain operational order, thus enable power amplifier and choose the appointment microphone.Indoor set 10 can be connected by cable, netting twine or other wireless mode with communication between the indoor unit 20.
Should be understood that above-mentioned description at the utility model preferred embodiment is comparatively detailed and concrete, can not therefore think the restriction to the utility model scope of patent protection, scope of patent protection of the present utility model should be as the criterion with claims.
Claims (4)
1. video intercom indoor set system, comprise an indoor set and at least one indoor unit, described indoor set comprises multimedia processor, video input unit, RAM, ROM, audio frequency input-output unit, input amplification network, microphone, power amplification circuit and loud speaker, it is characterized in that: described indoor set also comprises diverter switch and communication drive circuit, and described indoor unit comprises single-chip microcomputer, signal input device, at least one power amplifier, amplifier, microphone, loud speaker and the communication drive circuit identical with power amplifier quantity;
The loud speaker of described indoor unit is connected with the audio frequency input-output unit communication of indoor set by corresponding power amplifier;
The microphone of described indoor unit is connected with the diverter switch communication of indoor set by amplifier;
The diverter switch of described indoor set is under the control of multimedia processor, and selectivity is switched the microphone of indoor set or indoor unit successively by behind input amplification network and the audio frequency input-output unit audio signal transmission being arrived multimedia processor;
The single-chip microcomputer of described indoor unit is by its communication drive circuit and the multimedia processor communication of finishing after the communication drive circuit communication of indoor set is connected with indoor set;
Described signal input device is connected with single-chip microcomputer, drives to make single-chip microcomputer export a control signal to be transferred to the multimedia processor of indoor set by communication drive circuit, to drive the multimedia processor control its switch.
2. video intercom indoor set according to claim 1 system is characterized in that the power amplifier of described indoor unit and loud speaker are two, supports the audio frequency output of hands-free and handle mode respectively.
3. video intercom indoor set according to claim 1 system is characterized in that the communication drive circuit in described indoor set and the indoor unit is the RS485 chip.
4. video intercom indoor set according to claim 1 system is characterized in that described signal input device is a key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041689U CN201479300U (en) | 2009-08-31 | 2009-08-31 | Visual intercommunicating indoor set system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041689U CN201479300U (en) | 2009-08-31 | 2009-08-31 | Visual intercommunicating indoor set system |
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| Publication Number | Publication Date |
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| CN201479300U true CN201479300U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202041689U Expired - Lifetime CN201479300U (en) | 2009-08-31 | 2009-08-31 | Visual intercommunicating indoor set system |
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| CN (1) | CN201479300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547240A (en) * | 2011-12-30 | 2012-07-04 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
-
2009
- 2009-08-31 CN CN2009202041689U patent/CN201479300U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547240A (en) * | 2011-12-30 | 2012-07-04 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
| CN102547240B (en) * | 2011-12-30 | 2017-01-25 | 福建省冠林科技有限公司 | Visible talk back equipment used by crowds with hearing loss |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
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| CX01 | Expiry of patent term |