CN203554528U - A telephone-type interphone - Google Patents
A telephone-type interphone Download PDFInfo
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- CN203554528U CN203554528U CN201320658394.0U CN201320658394U CN203554528U CN 203554528 U CN203554528 U CN 203554528U CN 201320658394 U CN201320658394 U CN 201320658394U CN 203554528 U CN203554528 U CN 203554528U
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- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000005236 sound signal Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000002592 echocardiography Methods 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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Abstract
The utility model relates to a telephone-type interphone and belongs to communication field. The interphone comprises a casing, wherein a sound amplifying opening used for amplifying power is arranged on the casing, the casing is also provided with an external speaking key and a one-key dialing key, and a microphone is arranged at the bottom end of the casing; and the sound amplifying opening, the external speaking key, the one-key dialing key, and the microphone are connected with a main board circuit module built in the casing. The telephone-type interphone overcomes disadvantages of voice communication between an expressway toll booth and a monitoring center and is an information communication device based on SIP. The information communication device mainly solves problems of calling, echoes, and external sound amplification in a using process. If the one-key dialing key is pressed, external sound amplifying and one-key communication are achieved. If the external speaking key is pressed, a user can communicate with the monitoring center directly. The interphone can answer a call automatically. When a call is executed from the center to the interphone (the device) at a booth, an answering conversation state can be achieved directly without pressing the keys. The telephone-type interphone has various network access manners and can be accessed to the network through a fixed network RJ45 manner or a 3G wireless network.
Description
Technical field
The utility model relates to a kind of telephone-type intercom, belongs to the communications field.
Background technology
On highway, the staff of tollbooth often need to converse with Surveillance center, general single work intercom or the inside line adopting of talking mode.Wherein in actual applications, staff's single work intercom technology need to converse by intercom push key with pushing, cannot discharge other things of processing by handle, and inefficiency, is used also inconvenient.Although inside line can be conversed by hands-free way, fail safe is lower, has crack method, cause the communication resource privately to be taken, and because house phone does not possess one-touch easy dialing function, in use procedure, need to remember different extension, in use, also exist inconvenient.These two kinds of technology of while, maximum defect is to merge with existing informatization and network, in information system management, can not bring into play good effect.
Utility model content:
The utility model provides telephone-type intercom for above-mentioned deficiency.
The utility model adopts following technical scheme:
A kind of telephone-type intercom of the utility model, comprises a casing, arranges the mouth that amplifies for power amplifier on described casing, and casing is provided with external talk key and a key dial key in addition, and microphone arrangement is in the bottom of casing; Amplify mouthful, externally talk key, a key dial key, microphone are connected with casing onboard motherboard circuit module.
Telephone-type intercom described in the utility model, described motherboard circuit module is provided with for connecting the audio frequency output interface of the ground wire of voice band line, the audio frequency out-put supply ground wire of the interface of the ground wire of power supply, audio signal during for audio frequency output, power interface connects power supply, RS-232 management mouthful is used under management mode, with equipment, carry out communication, can carry out equipment debugging, configuration, management; For the Ethernet interface of connected with network cable, for the miniPCI-E interface of bus interface.
Telephone-type intercom described in the utility model, is characterized in that: in described motherboard circuit module, set noise reduction module; Described noise reduction module comprises echo chip, and echo chip is embedded in echo processing module; Noise reduction module is connected with microphone.
Beneficial effect
The telephone-type intercom that the utility model provides, solved the deficiency that current expressway toll kiosk and Surveillance center's voice call exist, this information communication device of information communication device based on Session Initiation Protocol has mainly solved uttering long and high-pitched sounds of call voice and echo in utility model process, externally amplify, press as externally amplifying, Push-to-Talk, press as direct and center call, auto-pickup, converse towards sentry box phone (being this equipment) in center, without button, directly enter and answer dialogue state, multiple network access can adopt fixed network RJ45 mode access network, also can be by technical problems such as 3G wireless network access networks.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model interface structure schematic diagram;
Fig. 3 is mainboard module structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in the figure: 1, a kind of telephone-type intercom, comprise a casing 1, on casing 1, arrange the mouth 2 that amplifies for power amplifier, casing 1 is provided with external talk key 3 and a key dial key 4 in addition, and microphone 5 is arranged in the bottom of casing 1; Amplify mouthfuls 2, externally talk key 3, a key dial key 4, microphone 5 are connected with casing 1 onboard motherboard circuit module; Externally talk key 3, when in non-talking state, clicks button and can start Call Center Server.
During unstable state at central server in not answering, or at center, answered both sides when call stable state, clicked button, can hang up the telephone.
When in called terminal ringing state, can click button and receive calls, or the auto-pickup that also can not touch the button.(can be configured by web page)
One key dial key 4: the state that megaphone is closed, click button, megaphone is opened; The state that megaphone is opened, clicks button, and megaphone is closed.
If press the button, do not decontrol, long pressing, while reaching 5 seconds, starts to report the machine IP address by built-in loudspeaker on equipment.If do not decontrol, will not report always, after this report being finished if decontrol, no longer report.
When button is pressed, cannot propaganda directed to communicate.Surpass the button operation of 5 seconds, on the operating state of megaphone without impact.
One key dial key 4 is only the switch of controlling megaphone, does not control output channel, does not affect voice call.
A phonetic entry passage, inputs by pick-up, and position 5, with mic pick-up, gathers Speech input; A voice output passage connects megaphone (be binding post 6,7, connect the megaphone outside sentry box) simultaneously and built-in loudspeaker (being the loudspeaker of position 2) are exported.
The operating state that the sound of output channel is play by equipment determines (being that built-in loudspeaker and the broadcasting that externally amplifies are switched voluntarily according to operating state).When called in conversing, from producing ring back tone until end of conversation, when caller, from starting by lower outside talk key 3 until end of conversation, both of these case is no matter whether external loudspeaker are opened, and output channel is the sound of distal center server.During without voice call, external loudspeaker are play by external loudspeaker after echo and noise processed by MIC input.
The elimination of the echo of system requirements mainly contains two types, and a kind of is that far-end echo is eliminated, and the sound that produces reason and be the other side, can again be inputted from local pick-up, and be heard by opposite end owing to emitting with loudspeaker in tollbooth.Be this locality echo of propagandaing directed to communicate, doing this locality while propagandaing directed to communicate, owing to being that typhon is emitted, sound is very large, and the sound of propagandaing directed to communicate can again enter and be played out from pick-up, causes self-oscillation.System need to be eliminated this two kinds of echoes.These two kinds of outputs are to work alone, and can not work simultaneously.
CPU selects the AM1808/OMAPL138 of the ARM9 core of TI company, and dominant frequency 375/456MHZ supports 1 RMII, 2 USB, 1 McASP, has very little taking up room (PBGA361 PIN 17*17mm), and low-down power consumption, meet our demand.We select 64MB SDRAM.SDRAM hangs over below the EMIF bus of CPU.FLASH selects the chip of Samsung, and capacity is 64MB.FLASH hangs over below the EMIFA bus of CPU.
PHY selects the DM9161 of DAVCOM company, and this chip is supported RMII bus, is a 10/100M self adaptation PHY, and encapsulates small and exquisitely, saves space.
The ML7037 of CODEC chip selection OKI, the built-in audio coding decoding of this chips, support hardware echo inhibit feature.The McASP that voice connect CPU by pcm bus transmits, and ML7037 connects CPU by spi bus, and CPU is configured ML7037.On concrete circuit, only MIC directly need to be connected to ML7037.Playback aspect, can connect at the output of ML7037 D class power amplification chip.
Power amplifier chips is selected the TPA2000 of TI, and single channel power output is 2W, completely practical requirement.Gain-adjusted scope is 6 to 23.5 dB.For the mode that adopts GPIO to control triode above external speaker switch, realize.
48V-12V power supply chip is selected the TPS23753A of TI, meets the IEEE 802.3at standard of POE completely.The POE transformer of 13W is selected in transformer aspect, and power satisfies the demands completely.POE power supply and external 12V power and deposit, and POE feeder ear breaks when connecting external power supply.
Reserved 3G module or WIFI module adopt the standard interface of miniPCIE, and data/address bus adopts USB OTG interface modes.
The interface of the another one USB1.1 that external USB interface employing CPU goes out, adopts standard USB interface mode.
PCB area is less than 10*10cm, and flaggy 2 or 4 layers are determined loudspeaker: 2W, 8 ohmages, race diameter 50mm after concrete layout.
On highway, the engine noise of lorry is very large, severe jamming exchanging of fee-collector and driver, when to driver's explanation and inquiry problem, conventionally to repeat loudly multipass, affected charge speed, reduce the favorable image of service window, also increased fee-collector's labour intensity, to fee collection, brought inconvenience.This phoneization formula intercom, with the mouth that amplifies, listens outer loudspeaker to dock with charge, is suitable for the pattern that use is listened in charge, and like this, fee-collector just need not just can exchange with driver loudly smoothly, has improved the service quality of charge station, has facilitated the fast passing of vehicle.
Claims (3)
1. a telephone-type intercom, it is characterized in that: comprise a casing (1), upper amplify mouthful (2) of arranging for power amplifier of described casing (1), casing (1) is provided with external talk key (3) and a key dial key (4) in addition, and microphone (5) is arranged in the bottom of casing (1); Amplify mouthful (2), externally talk key (3), a key dial key (4), microphone (5) are connected with casing (1) onboard motherboard circuit module.
2. telephone-type intercom according to claim 1, it is characterized in that: described motherboard circuit module is provided with for connecting the audio frequency output interface of the ground wire (6) of voice band line, the audio frequency out-put supply ground wire (7) of the interface of the ground wire of power supply, audio signal during for audio frequency output, power interface (8) connects power supply, RS-232 management mouthful (9) is under management mode, with equipment, carry out communication, can carry out equipment debugging, configuration, management; For the Ethernet interface (10) of connected with network cable, for the miniPCI-E interface of bus interface.
3. telephone-type intercom according to claim 1, is characterized in that: in described motherboard circuit module, set noise reduction module; Described noise reduction module comprises echo chip, and echo chip is embedded in echo processing module; Noise reduction module is connected with microphone (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658394.0U CN203554528U (en) | 2013-10-24 | 2013-10-24 | A telephone-type interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658394.0U CN203554528U (en) | 2013-10-24 | 2013-10-24 | A telephone-type interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203554528U true CN203554528U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320658394.0U Expired - Lifetime CN203554528U (en) | 2013-10-24 | 2013-10-24 | A telephone-type interphone |
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| Country | Link |
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| CN (1) | CN203554528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533113A (en) * | 2013-10-24 | 2014-01-22 | 南京感动科技有限公司 | Telephone type interphone |
-
2013
- 2013-10-24 CN CN201320658394.0U patent/CN203554528U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533113A (en) * | 2013-10-24 | 2014-01-22 | 南京感动科技有限公司 | Telephone type interphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |