CN201491090U - Bidirectional picture transmission device-based service communication device - Google Patents
Bidirectional picture transmission device-based service communication device Download PDFInfo
- Publication number
- CN201491090U CN201491090U CN2009201561597U CN200920156159U CN201491090U CN 201491090 U CN201491090 U CN 201491090U CN 2009201561597 U CN2009201561597 U CN 2009201561597U CN 200920156159 U CN200920156159 U CN 200920156159U CN 201491090 U CN201491090 U CN 201491090U
- Authority
- CN
- China
- Prior art keywords
- circuit
- duties
- unit
- links
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Telephonic Communication Services (AREA)
Abstract
The utility model discloses a bidirectional picture transmission device-based service communication device. The service module comprises a service unit, an IP data exchange unit which is connected with a modulator and a demodulator in a baseband module, a speech coding unit which is connected with a service communication unit and the IP data exchange unit, and a speech decoding unit which is connected with the service communication unit and the IP data exchange unit. The service unit comprises a small-signal amplifying circuit for amplifying a speech signal, a signal synthesis circuit, of which the first end is connected with an output end of the speech signal of the small-signal amplifying circuit and the second end is connected with one end of the speech coding unit, a 800Hz sine wave generating circuit which is connected with the third end of the signal synthesis circuit, a call button which is connected between the third end of the signal synthesis circuit and the 800Hz sine wave generating circuit, a speech power amplifying circuit, in which an input end of the speech signal is connected with one end of the speech decoding unit, a 800Hz identifier circuit, of which the other end is connected with the rear end of the speech decoding unit, and a high-gain buzzer which is connected with the rear end of the 800Hz identifier circuit.
Description
Technical field
The utility model relates to duties verbal system field, more particularly, relates to a kind of duties verbal system that passes equipment based on two-dimensional plot.
Background technology
At present, along with emergency communication system popularizing that special trade is used, in the duties communication process, the leader of command centre reports field personnel's direct command and field personnel's on-line operation, not only need image information but also need voice messaging, to realize effective expansion of emergency.
Traditional two-dimensional plot passes equipment, as shown in Figure 1, and based on communicating by letter of image scene voice and base command centre interchannel.Comprise business module 100, baseband module 200, radio-frequency module 300 and power module 400.Wherein, business module 100 links to each other with receiver with microphone, and baseband module 200 connects between business module 100 and the radio-frequency module 300, and power module 400 is used for providing power supply to each module.
Radio-frequency module 300 comprises: transmitter unit 330; The receiving element that links to each other with described transmitter unit 330 1 ends.
Though this two-dimensional plot passes list/transmitted in both directions that equipment can be realized voice and image, but it is communicating by letter based on image scene voice and base command centre interchannel mainly, and field personnel's direct command and field personnel's on-line operation report are being implemented big difficulty for the leader of command centre, be unfavorable for effective expansion of emergency.Owing to there is not the function of duties conversation, that is to say communicate with each other (conversation of similar phone form) that on existing equipment, can't realize equipment room, and when the form that adopts intercom realizes voice communication between higher level and the subordinate, because the operating frequency of the 350MHz that voice adopt, all are set to the intercom of similar frequency bands and all can and listen to its conversation, be unfavorable for maintaining secrecy of information, also be subjected to external interference easily.
The utility model content
In view of this, the utility model provides a kind of duties verbal system based on two-dimensional plot biography equipment, with the function that realizes that duties are conversed, and the confidentiality of being convenient to information.
For achieving the above object, the utility model has adopted following technical scheme:
The utility model provides a kind of duties verbal system based on two-dimensional plot biography equipment, comprising:
Business module;
Radio-frequency module;
The baseband module that connects described business module and described radio-frequency module;
Be used to interior each module of described equipment that the power module of electric energy is provided;
Described business module comprises:
The IP exchanges data unit that links to each other with modulator and demodulator in the described baseband module;
The speech coding unit that connects described duties telephony unit and described IP exchanges data unit;
The tone decoding unit that connects described duties telephony unit and described IP exchanges data unit;
Described business module also comprises: the duties telephony unit, and described duties unit comprises:
Be used to handle the front-end processing unit of front end voice signal, an end links to each other with described speech coding unit, and the other end links to each other with microphone;
Be used to handle the back-end processing unit of rear end voice signal, an end links to each other with described tone decoding unit, and the other end links to each other with receiver.
Preferably, described front-end processing unit comprises:
Be used for the small signal amplification circuit that voice signal amplifies;
First end links to each other with described small signal amplification circuit voice signal output, the signal synthesis circuit that second end links to each other with described speech coding unit one end;
The 800Hz sine wave generating circuit that links to each other with described signal synthesis circuit the 3rd end;
Be connected the call button between described signal synthesis circuit the 3rd end and the described 800Hz sine wave generating circuit.
Preferably, also comprise coupling capacitance between described small signal amplification circuit and the microphone.
Preferably, described small signal amplification circuit is a low noise amplifier circuit.
Preferably, the signal synthesis circuit that links to each other with described small signal amplification circuit is an add circuit.
Preferably, the described 800Hz sine wave generating circuit that links to each other with described add circuit comprises:
Square-wave generator, hardware divider device, filter, wherein, described hardware divider device front end links to each other with described square-wave generator, and the rear end links to each other with described filter front end, and described filter rear end links to each other with described call button.
Preferably, described square-wave generator adopts the square-wave generator of crystal mode.
Preferably, described back-end processing unit comprises:
One end links to each other with described receiver, the phonetic speech power amplifying circuit that the other end links to each other with described tone decoding unit;
The 800Hz identification circuit that one end links to each other with described tone decoding unit;
The high-gain buzzer that links to each other with the described 800Hz identification circuit other end.
Preferably, described 800Hz identification circuit comprises:
The frequency detection circuit that one end links to each other with described tone decoding unit;
Be connected the delay circuit between described frequency detection circuit and the described high-gain buzzer.
From above-mentioned technical scheme as can be seen, an independent voice channel that provides based on encoding and decoding among the utility model embodiment, this voice channel finally still sends by same modulation with the multiplexing back of image channel, owing to increased the duties telephony unit, by the front-end processing unit processes voice signals, with the voice signal of back-end processing cell processing, in two-dimensional plot biography equipment, realized the function of duties conversations, realize the function of duties conversation.
Because in fact baseband module is exactly a modulator-demodulator, the agreement of the inner TCP/IP of employing realizes transfer of data, and voice signal transmits in passage with the form of IP packet by digital coding, makes the conversation of duties double-directional speech become more convenient.Calling party adopts the 800Hz sine wave signal when calling out, after pressing red button, this machine will send the sine wave of a 800Hz to the other side, when the other side identifies this 800Hz signal from the signal of receiving, buzzer will send sound, receive calls with prompting the other side, what be convenient to information maintains secrecy also easy anti-external interference.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall structure theory diagram that traditional two-dimensional plot passes equipment;
Fig. 2 is the disclosed a kind of duties conversation theory diagram that passes equipment based on two-dimensional plot of the utility model embodiment;
Fig. 3 is the disclosed a kind of duties speaking circuit schematic diagram 1 that passes equipment based on two-dimensional plot of the utility model embodiment;
Fig. 4 is the disclosed a kind of duties speaking circuit schematic diagram 2 that passes equipment based on two-dimensional plot of the utility model embodiment;
Fig. 5 is the disclosed a kind of duties speaking circuit schematic diagram 3 that passes equipment based on two-dimensional plot of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of duties verbal system based on two-dimensional plot biography equipment, to realize the function of duties conversation.
The disclosed a kind of two-dimensional plot of the utility model embodiment as shown in Figure 2 passes the duties verbal system overall structure theory diagram of equipment.
Further increasing duties telephony unit 140 on the prior art basis on business module 100, duties telephony unit 140 is positioned between microphone and receiver and speech coding unit 110 and the tone decoding unit 120.
Wherein, duties telephony unit 140 comprises front-end processing unit 141 and back-end processing unit 140, and front-end processing unit 141 is connected between microphone and the speech coding unit 110; Back-end processing unit 142 is connected between receiver and the tone decoding unit 120.
From above-mentioned technical scheme as can be seen, an independent voice channel that provides based on codec unit 110 and 120 among the utility model embodiment, this voice channel finally still sends by same modulation with the multiplexing back of image channel, owing to increased duties telephony unit 100, by front-end processing unit 141 processes voice signals, with the voice signal that back-end processing unit 142 is handled, in two-dimensional plot biography equipment, realized the function of duties conversations.
The disclosed a kind of duties speaking circuit schematic diagram 1 that passes equipment based on two-dimensional plot of the utility model embodiment as shown in Figure 3.
Front-end processing unit 141 comprises in the duties telephony unit 110: small signal amplification circuit 1411; First end links to each other with described small signal amplification circuit 1411 voice signal outputs, the signal synthesis circuit 1412 that second end links to each other with described speech coding unit 110 1 ends; The 800Hz sine wave generating circuit 1414 that links to each other with described signal synthesis circuit 1412 the 3rd end; Be connected the call button 1413 between described signal synthesis circuit 1412 the 3rd end and the described 800Hz sine wave generating circuit 1414; The phonetic speech power amplifying circuit 1421 that the voice signal input links to each other with 120 rear ends, described tone decoding unit; The 800Hz identification circuit 1422 that front end links to each other with 120 rear ends, described tone decoding unit; The high-gain buzzer 1423 that links to each other with described 800Hz identification circuit 1422 rear ends.
Owing to comprise small signal amplification circuit 1411,800Hz sine-wave generator 1414, combiner circuit 1412, power amplifier, 800Hz identification circuit 1422, high-gain buzzer 1423 etc., and utilize the aforementioned two-dimensional plot of building to pass equipment platform, set up independently duties voice call passage.Insert the corresponding interface of duties telephony unit with common microphone, and two-dimensional plot biography equipment is set,, get final product call peer and carry out real-time voice call by press more than the call button 1S red on the lower panel.
The disclosed a kind of duties speaking circuit schematic diagram 2 that passes equipment based on two-dimensional plot of the utility model embodiment as shown in Figure 4.
Wherein, at small signal amplification circuit 1411 front ends coupling capacitance 1415 is set;
800Hz sine-wave generator 1414 is made up of square-wave generator 1414-1 and hardware divider device 1414-2 and filter 1414-3, and wherein, hardware divider device 1414-2 places between square-wave generator 1414-1 and the filter 1414-3.
The microphone arrival end is by a coupling capacitance 1415 and adopt low noise small signal amplification circuit 1411 to realize the amplification first of voice small-signal.For guaranteeing the stability of 800Hz sine wave freuqency, adopt the mode of crystal to produce square wave (duty ratio is 50%) in the circuit, and pass through hardware divider device 1414-2 frequency division on assigned frequency, filter three times and above harmonic wave of square wave by filter 1414-3, promptly obtain the sine wave signal of assigned frequency.
Call button 1413 promptly guarantees to open when the user need call out among the figure, and then realizes the control to 800Hz sine wave signal admission passage.And realize synthesizing of voice signal and 800Hz sine wave signal by add circuit, send into encoder with one tunnel signal and encode, and finish transfer of data.
The disclosed a kind of duties speaking circuit schematic diagram 3 that passes equipment based on two-dimensional plot of the utility model embodiment as shown in Figure 5.
Wherein, 800Hz identification circuit 1422 comprises: frequency detection circuit 1422-1 and delay circuit 1422-2, and delay circuit 1422-2 links to each other with high-gain buzzer 1423, and frequency detection circuit 1422-1 links to each other with tone decoding unit 120.
Voice signal from Voice decoder 120 can directly drive receiver through power amplification circuit 1421, and sound, simultaneously, frequency detection circuit 1422-1 will detect whether comprise the 800Hz sine wave signal that front end sends in the voice channel in real time, include the voice signal of 800Hz during in view of normal speech communication, in frequency detection circuit 1422-1 rear end the generation that corresponding delay circuit 1422-2 can avoid its misoperation is set, and driving high-gain buzzer 1423 is sounded by the rear end drive circuit.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. one kind passes the duties verbal system of equipment based on two-dimensional plot, comprising:
Business module;
Radio-frequency module;
The baseband module that connects described business module and described radio-frequency module;
Be used to interior each module of described equipment that the power module of electric energy is provided;
Described business module comprises:
The IP exchanges data unit that links to each other with modulator and demodulator in the described baseband module;
The speech coding unit that connects described duties telephony unit and described IP exchanges data unit;
The tone decoding unit that connects described duties telephony unit and described IP exchanges data unit;
It is characterized in that described business module also comprises: the duties telephony unit, described duties unit comprises:
Be used to handle the front-end processing unit of front end voice signal, an end links to each other with described speech coding unit, and the other end links to each other with microphone;
Be used to handle the back-end processing unit of rear end voice signal, an end links to each other with described tone decoding unit, and the other end links to each other with receiver.
2. duties verbal system according to claim 1 is characterized in that, described front-end processing unit comprises:
Be used for the small signal amplification circuit that voice signal amplifies;
First end links to each other with described small signal amplification circuit voice signal output, the signal synthesis circuit that second end links to each other with described speech coding unit one end;
The 800Hz sine wave generating circuit that links to each other with described signal synthesis circuit the 3rd end;
Be connected the call button between described signal synthesis circuit the 3rd end and the described 800Hz sine wave generating circuit.
3. duties verbal system according to claim 2 is characterized in that, also comprises coupling capacitance between described small signal amplification circuit and the microphone.
4. duties verbal system according to claim 3 is characterized in that, described small signal amplification circuit is a low noise amplifier circuit.
5. duties verbal system according to claim 4 is characterized in that, the signal synthesis circuit that links to each other with described small signal amplification circuit is an add circuit.
6. duties verbal system according to claim 5 is characterized in that, the described 800Hz sine wave generating circuit that links to each other with described add circuit comprises:
Square-wave generator, hardware divider device, filter, wherein, described hardware divider device front end links to each other with described square-wave generator, and the rear end links to each other with described filter front end, and described filter rear end links to each other with described call button.
7. duties verbal system according to claim 6 is characterized in that, described square-wave generator adopts the square-wave generator of crystal mode.
8. duties verbal system according to claim 1 is characterized in that, described back-end processing unit comprises:
One end links to each other with described receiver, the phonetic speech power amplifying circuit that the other end links to each other with described tone decoding unit;
The 800Hz identification circuit that one end links to each other with described tone decoding unit;
The high-gain buzzer that links to each other with the described 800Hz identification circuit other end.
9. duties verbal system according to claim 8 is characterized in that, described 800Hz identification circuit comprises:
The frequency detection circuit that one end links to each other with described tone decoding unit;
Be connected the delay circuit between described frequency detection circuit and the described high-gain buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201561597U CN201491090U (en) | 2009-06-19 | 2009-06-19 | Bidirectional picture transmission device-based service communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201561597U CN201491090U (en) | 2009-06-19 | 2009-06-19 | Bidirectional picture transmission device-based service communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491090U true CN201491090U (en) | 2010-05-26 |
Family
ID=42429954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201561597U Expired - Fee Related CN201491090U (en) | 2009-06-19 | 2009-06-19 | Bidirectional picture transmission device-based service communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201491090U (en) |
-
2009
- 2009-06-19 CN CN2009201561597U patent/CN201491090U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107147415A (en) | A kind of voice intercom device and method based on LORA technologies | |
| CN201323575Y (en) | Bluetooth headset | |
| CN107071603A (en) | A kind of microphone and system for Real-time speech recognition | |
| CN102547602B (en) | Shoulder microphone and system and method for realizing three-party conversion between public network and private network | |
| CN106490751A (en) | There is the intelligent helmet and its remote control thereof of remote control | |
| CN203813932U (en) | Group chat device for multi-party voice communication | |
| CN201491090U (en) | Bidirectional picture transmission device-based service communication device | |
| CN102332949B (en) | Compass external talker, compass voice communication system and method | |
| CN107395878A (en) | Automatic voice and text conversion communication system | |
| CN209201160U (en) | A kind of voice gateways of multi-internet integration | |
| CN207665224U (en) | A kind of talkback system | |
| CN208128235U (en) | A kind of Novel walkie talkie combined system | |
| CN207530818U (en) | A kind of intercom system based on WIFI | |
| US10244123B2 (en) | Master-slave wireless doorbell intercom system | |
| CN202818579U (en) | Network conference interface microphone | |
| CN201226575Y (en) | Wireless monitoring apparatus and mobile phone for wireless monitoring | |
| CN101094040B (en) | Carrier wave feedback circuit for wire broadcasting terminals in amplitude modulation format or frequency modulation format | |
| CN201414159Y (en) | Multimedia terminal machine | |
| CN103841279A (en) | Bus-based multi-party communication digital telephone system | |
| CN210609531U (en) | Wireless intercom device for elevator | |
| CN114244945B (en) | Noise-reducing and monitoring integrated dispatching special telephone | |
| CN202949529U (en) | Digital wireless voice multi-party call system | |
| CN101867845A (en) | Wireless calling system based on window intercom | |
| CN210112095U (en) | Emergency help-seeking calling device based on STM32F103 single chip microcomputer | |
| CN206948494U (en) | A kind of video intercom of storage information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |