CN2582299Y - Internal liaison communication equipment - Google Patents
Internal liaison communication equipment Download PDFInfo
- Publication number
- CN2582299Y CN2582299Y CN02225404U CN02225404U CN2582299Y CN 2582299 Y CN2582299 Y CN 2582299Y CN 02225404 U CN02225404 U CN 02225404U CN 02225404 U CN02225404 U CN 02225404U CN 2582299 Y CN2582299 Y CN 2582299Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- sound
- machine
- loudspeaker
- main frame
- 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
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to internal liaison communication equipment, which comprises a host circuit and a remote end slave circuit, wherein, the host circuit comprises a microcontroller, a sound source switching circuit, an AM or FM radio module circuit, a volume control circuit, a mute control circuit, a host machine horn, a power amplifying circuit, a state selection and control circuit, a keyboard, a display circuit, an A/D switching circuit, a monitoring signal acquisition processing circuit, and a predischarging circuit; the remote end slave circuit comprises a slave horn and a button circuit of the slave horn, wherein, an external sound source is sent to remote end slave circuit or the host machine horn through a sound source switching switch, the volume control circuit, the power amplifying circuit, and the state selection and control circuit; the monitoring information of the host machine horn or the remote end slave circuit is sent to another remote end slave circuit or the host machine horn through the state selection and control circuit, the monitoring signal acquisition processing circuit, and the predischarging circuit; the microcontroller connects all the circuits, which is used for controlling the harmony actions of all the circuits to complete corresponding functions.
Description
Technical field under the utility model
The utility model relates to intercommunication, the monitoring device that uses in a kind of building, and slave, the intercommunication of electronic door bell, the monitoring device of main frame, a plurality of loudspeaker units especially arranged.
The utility model background technology
The building talkback device of Shi Yonging in the market generally is by button, coding circuit, the intercommunication circuit constitutes one to one, and circuit structure is too simple, and function is comparatively single, does not possess functions such as monitoring.And general music playing system also is single to deliver to loud speaker from source of sound through power amplifier, and structure is single.
The present utility model content
The utility model is improved to the multi-functional circuit structure of kneading with regard to the circuit structure of function singleness of the prior art, realizes the communication device of playback, intercommunication, monitoring, wireless radio reception.
The utility model comprises that host circuit and far-end are from machine circuit, host circuit comprises microcontroller, AM FM radio reception module, source of sound commutation circuit, volume control circuit, muting control circuit, main frame loudspeaker, power amplifier, state selection control circuit, keyboard, display circuit, A/D change-over circuit, monitoring signal sampling processing and pre-arcing road, and far-end comprises slave loudspeaker and key circuit thereof from machine circuit.
Wherein, external source of sound selects control circuit to be sent to far-end from machine circuit or main frame loudspeaker through source of sound commutation circuit, volume control circuit, power amplifier, state.
Main frame loudspeaker or far-end select control circuit, monitoring signal sampling processing and pre-arcing road, power amplifier, state to select control circuit to be sent to another far-end from machine circuit or main frame loudspeaker from the monitoring information of machine circuit through state.
Microcontroller connects each circuit, is used to control the coordination of each circuit, guarantees the realization of corresponding function.
State selects control circuit to comprise relay array, principal and subordinate's machine status switch array of controls, status switch testing circuit.
The utility model by one in the main frame that comprises host circuit and comprise far-end from the slave of machine circuit several, parts such as electronic door bell form, a main frame can connect 13 more than far-end loudspeaker unit (slave).The mode of operation of main frame loudspeaker and far-end slave loudspeaker, and the multiple source of sound that inserts of the signal sampling of each loudspeaker unit and main frame, electronic door bell etc., all coordinate control by the microcontroller of main frame, but make all sound of uppick broadcast receiver radio station and the external source of sound that inserts from main frame of each loudspeaker, realize intercommunication between each loudspeaker, monitoring and electronic door bell intercommunication.Under various modes, utilized well loudspeaker works " miaow " head is cooperated the various functions of finishing device dexterously with the various of relay by status switch.
The utility model description of drawings
Fig. 1 is the utility model electricity theory diagram;
Fig. 2 be the utility model embodiment from the machine circuit electrical schematic diagram;
Fig. 3 is the part host circuit electrical schematic diagram of the utility model embodiment;
Fig. 4 is the level shaping circuit electrical schematic diagram of the utility model embodiment.
The utility model embodiment
The utility model comprises that host circuit and far-end are from machine circuit 10, host circuit comprises microcontroller 1, source of sound commutation circuit 2, volume control circuit 3, muting control circuit [4], main frame loudspeaker 9, power amplifier 6, state selection control circuit, keyboard 14, display circuit 13, A/D change-over circuit 12, monitoring signal sampling processing and pre-arcing road 5 etc., far-end comprises slave loudspeaker 25 and key circuit (SW1 thereof from machine circuit, SW2, SW3).
Wherein, external source of sound selects control circuit to be sent to far-end from machine circuit 10 or main frame loudspeaker 9 through source of sound commutation circuit 2, volume control circuit 3, power amplifier 6, state.
State selects control circuit to comprise relay array 7, principal and subordinate's machine status switch array of controls 8, status switch testing circuit 11.
As shown in Figure 1 and Figure 2, various sound source signals [15,16,18,19] are input to source of sound commutation circuit [2], after source of sound commutation circuit [2] is switched, input to volume and regulate compensating circuit [3], signal is input to relay array [7] behind power amplifier [6] again, relay array [7] connects principal and subordinate's machine status switch array of controls [8], principal and subordinate's machine status switch array of controls [8] output 3 road signals, give respectively: main frame loudspeaker [9], far-end are from machine circuit [10] and status switch testing circuit [11], and status switch testing circuit [11] output signal is to microcontroller MCU[1]; When monitoring, monitoring signal is given power amplifier [6] from main frame loudspeaker [9] or far-end after machine circuit [10] state that outputs to selects control circuit to be input to monitoring signal sampling processing and pre-arcing road [5] behind transformer T301, signal is input to relay array [7] behind power amplifier [6] again, exports another far-end to from machine circuit [10] or main frame loudspeaker [9] through principal and subordinate's machine status switch array of controls [8]; Far-end is exported after A/D conversion [12] to microcontroller MCU[1 from another road of machine circuit [10]], far-end also has one tunnel output to be input to muting control circuit [4] behind level shaping circuit [20] from machine circuit [10]; Microcontroller MCU[1] also receive the signal of keyboard matrix [14], electric bell module [16], AM/FM radio reception module [15], microcontroller MCU[1] output signal gives respectively: muting control circuit [4], relay array [7], source of sound commutation circuit [2] and LCD show [13] and AM/FM radio reception modular circuit.The output signal of source of sound commutation circuit [2] is accepted in the auxiliary output of LINE OUT source of sound [17].
In Fig. 1, Fig. 3, host circuit is by microcontroller MCU[1], keyboard matrix [14], LCD show that [13], A/D conversion [12], AM/FM radio reception module [15], source of sound commutation circuit [2], volume regulate compensating circuit [3], power amplifier [6], INTERCOM and form with monitoring signal sampling processing and pre-arcing road [5], relay array [7] and status switch testing circuit [11] etc.Far-end loudspeaker unit (slave) part comprises slave loudspeaker 25 and corresponding key circuit.
Microcontroller MCU[1] mainly be responsible for the whole Coordination Treatment of device, comprise that keyboard 14, the various states of LCD show, control AM/FM channel selection and storage, the various sources of sound access power amplifiers of control and corresponding various quiet control, be responsible for handling the A/D conversion of far-end slave button, be responsible for detecting the variation of principal and subordinate's machine status switch position, be responsible for handling Intercom and monitoring signal sample circuit and relay array.
Main frame has auxiliary source of sound input AUX[18], TAPE/CD source of sound input [19] and the auxiliary output of LINE OUT source of sound [17] interface, can easily external source of sound be guided to this device, and the sound (as Radio) of this device is outputed to miscellaneous equipment.
The AM/FM radio reception module [15] of main frame is by microcontroller MCU[1] control the digital tuning broadcast receiver, can manually search platform and deposit among the MEM, AM and FM can deposit 6 radio station (MEM1-MEM6) respectively, and under AM or FM pattern, principal and subordinate's machine all can directly select the MEM1-MEM6 radio station.
Source of sound commutation circuit [2] is made of chip 4066 and external circuits thereof, is mainly to be input to a kind of source of sound of volume adjusting compensating circuit 3 selections.Volume is regulated the height tone level weighing apparatus adjusting that compensating circuit [3] comprises sound; System sound volume is regulated and Intercom intercommunication volume is regulated.Sound after the adjusting and Intercom intercommunication signal are input to power amplifier after by quiet control.Power amplifier is a kind of OTL circuit of complementary symmetry, adopts the compound power amplifier of Toshiba's high-quality to pipe.
Under Intercom and listen mode, loudspeaker in principal and subordinate's machine circuit can be regarded the miaow head of microphone as, sound around the loudspeaker is sent to main frame or the extension set that is in Radio Intercom state through loudspeaker with sound, and main frame is when monitoring, monitoring signal is from the main frame loudspeaker unit, switching through relay R L203 and Q220 outputs to T301, and slave is when monitoring, monitoring signal is held through the Monitor that the slave loudspeaker unit outputs to SW1A, outputs to T301 again.The monitoring signal of principal and subordinate's machine is behind T301, be input to monitoring signal sampling processing and pre-arcing road [5] back and give power amplifier [6] processing and amplifying, with the cooperation of the sound (comprising monitoring, intercommunication, music etc.) after amplifying through status switch array 8 switchings of relay array 7 switchings and principal and subordinate's machine, sound is switched in the corresponding loudspeaker unit, can finish functions such as intercommunication, monitoring, playback.
In the A/D conversion, the voltage of pinning of several buttons of each slave loudspeaker is limited in the suitable scope, as three button voltage ranges of loudspeaker unit is respectively END CALL=2.4V-4.5V, DOOR TALK=2.4V-1V, INSIDE/PATIO=0V-1.0V, like this, microcontroller MCU[1] voltage next according to sampling, discern the instruction of the key that current slave loudspeaker unit pressed, such design philosophy not only helps far-end slave button and discerns reliably, more can prolong the distance between principal and subordinate's machine greatly, save the complete machine cost.
Main frame can allow to control wireless ON/OFF, channel selection from the far-end slave by (END CALL) key of SW1 by the setting of the SW201 on the main frame, SW202 two switches, realizes far-end remote control.Its operation principle be by main frame MCU to the identification of slave by SW1 (ENDCALL) time length, control broadcast receiver and make corresponding action.Except above-mentioned functions, carry out failure diagnosis for making things convenient for device, main frame IM3303 also provides self-diagnostic test: and setup time is set: functions such as timed power on/off.
Illustrate by Fig. 2 from machine circuit, comprise three binding posts (SILVER RED, CENTER, BLUE COPPER), resistance, diode, slave loudspeaker (25) and button (SW1, SW2, SW3).At diode D701 sampled signal level place, there is DC11.5V voltage to exist, when pressing END CALL key, (R4 R2) with dividing potential drop, changes to about 3.8V about making the sampled signal level by 11.5V at ordinary times divider resistance.Voltage through diode D225 post-sampling is about 4.4V, by two diodes (D217, D232) pressure drop, final microcomputer MCU[1] the sampled signal level is about 3.4V: in like manner, during by DOORTALK in (SW3) and INSIDE key, sampled voltage is respectively about 1.8V and 0.4V.By A/D change-over circuit 12, therefore microcomputer MCU can identify the information that transmits from the button of far-end slave, the instruction that acts accordingly in view of the above reliably.
The switching controls of sound shows in Fig. 2, Fig. 3 circuit diagram: switch SW 1A and SW1B are double 4 way switch, corresponding main frame of switch or extension set, except that host switch, 1,2,4 of each switch A correspondingly links together respectively, and 4 of each switch B connects together.Microcomputer MCU1 judges the mode of operation of current device, thereby removes the control relay array by detecting the position of the switch of SW1B, connects the corresponding sound path.For example under normal conditions, main frame and extension set all are in Radio Intercom pattern, at this moment switch (SW1A, SW1B) all beat at switch 1 place, POWER OUT place, control relay (RL201 are arrived in the voice output after then amplifying, RL203) adhesive (is CN102-8=1, CN102-10=1), then sound arrives the slave loudspeaker by switch SW 1A: to the main frame loudspeaker, finish the playback of sound by relay R L203.As on slave, pinning the INSIDE key, then the sound at slave place is through slave loudspeaker this " miaow head ", with the level signal of sound with sampling, remove level signal through capacitor C 211, be sent to transformer T301, through the transformer secondary output tap, the back amplification is handled in signal transformation sent into power amplifier, deliver to power delivery outlet POWEROUT place again, at this moment, field effect transistor Q219, Q220, Q221 all disconnects, relay R L201, RL202, RL203 connects, and at this moment, the principal and subordinate's machine that is in Raio Intercom and Intercom Only state can both be heard and pin the said sound of that slave of INSIDE key: when unclamping the INSIDE key, based on same reason, should hear the sound that other slave sends from function.If when a slave is in listening state, then the sound at this slave place is through this miaow head of slave loudspeaker, and by switch SW 2 → switch SW 3 → switch SW 1A → transformer T301, remaining is similar to presses " INSIDE " key with sound.When pressing DOOR TALK, process is also roughly with the INSIDE key, and just relay array 7 controls are slightly different.
Automatic mute during Intercom communication is achieved like this: owing to press DOOR TALK on slave, when INSIDE and END CALL triple bond, all can produce spike in the moment of pressing and unclamping, can produce serious sound interference, therefore, level shaping circuit 20 by figure four, the sampled level signal is carried out shaping, after three level signals that amplitude is not waited are handled by IC204 and IC205, press and unclamp moment at button and produce certain (5V) pulse signal of amplitude, this signal removes to control the mute circuit of Intercom passage, reaches at button to press and unclamp instantaneous purpose that can both be quiet.
Claims (10)
1, a kind of inner contact communication device, comprise that host circuit and far-end are from machine circuit, host circuit comprises microcontroller, AM/FM radio reception modular circuit, source of sound commutation circuit, volume control circuit, muting control circuit, main frame loudspeaker, power amplifier, state selection control circuit, keyboard, display circuit, A/D change-over circuit, monitoring signal sampling processing and pre-arcing road, far-end comprises slave loudspeaker and key circuit thereof etc. from machine circuit, it is characterized in that:
A, external source of sound select control circuit to be sent to far-end from machine circuit or main frame loudspeaker through source of sound diverter switch, volume control circuit, power amplifier, state.
B, main frame loudspeaker or far-end select control circuit, monitoring signal sampling processing and pre-arcing road, power amplifier, state to select control circuit to be sent to another far-end from machine circuit or main frame loudspeaker from the monitoring information of machine circuit through state.
C, microcontroller connect each circuit, and function corresponding is finished in the coordination that is used to control each circuit.
2, inner contact communication device according to claim 1 is characterized in that state selection control circuit comprises relay array, principal and subordinate's machine status switch array of controls, status switch testing circuit.
3, inner contact communication device according to claim 1 and 2, it is characterized in that various sound source signals [15,16,18,19] be input to source of sound commutation circuit [2], after source of sound commutation circuit [2] is switched, input to volume and regulate compensating circuit [3], signal is input to relay array [7] behind power amplifier [6] again, relay array [7] connects principal and subordinate's machine status switch array of controls [8], principal and subordinate's machine status switch array of controls [8] output 3 road signals, give respectively: main frame loudspeaker [9], far-end is from machine circuit [10] and status switch testing circuit [11], and status switch testing circuit [11] output signal is to microcontroller MCU[1].
4, inner contact communication device according to claim 1, it is characterized in that main frame is when monitoring, monitoring signal is from the main frame loudspeaker unit, switching through relay R L203 and Q220, output to T301, slave is when monitoring, and monitoring signal is held through the Monitor that the slave loudspeaker unit outputs to SW1A, outputs to T301 again.The monitoring signal of principal and subordinate's machine is behind T301, be input to monitoring signal sampling processing and pre-arcing road [5] back and give power amplifier [6], signal is input to relay array [7] behind power amplifier [6] again, exports another far-end to from machine circuit [10] or main frame loudspeaker [9] through principal and subordinate's machine status switch array of controls [8]; Far-end is exported after A/D conversion [12] to microcontroller MCU[1 from another road of machine circuit [10]], far-end also has one tunnel output to be input to muting control circuit [4] behind level shaping circuit [20] from machine circuit [10].
5, inner contact communication device according to claim 1, it is characterized in that microcontroller MCU[1] also receive the signal of keyboard matrix [14], electric bell module [16], AM/FM radio reception module [15], microcontroller MCU[1] output signal gives respectively: AM/FM radio reception module [15], muting control circuit [4], relay array [7], source of sound commutation circuit [2] and LCD show [13], and the output signal of source of sound commutation circuit [2] is accepted in the auxiliary output of LINE OUT source of sound [17].
6, inner contact communication device according to claim 1 is characterized in that volume adjusting compensating circuit [3] comprises the height tone level weighing apparatus adjusting of sound; System sound volume is regulated and Intercom intercommunication volume is regulated.
7, inner contact communication device according to claim 1 is characterized in that comprising three binding posts (SILVER RED, CENTER, BLUE COPPER), resistance, diode, slave loudspeaker (25) and button (SW1, SW2, SW3) from machine circuit.
8, inner contact communication device according to claim 1, it is characterized in that status switch detects 11 by two switch (SW1B, SW1A) constitute, switch SW 1A and SW1B are double 4 way switch, corresponding main frame of switch or extension set, except that host switch, 1,2,4 of each switch A correspondingly links together respectively, and 4 of each switch B connects together.
9, inner contact communication device according to claim 1 is characterized in that loudspeaker in principal and subordinate's circuit can regard the miaow head of microphone as, and the sound around the loudspeaker is sent to main frame through loudspeaker with sound.
10, inner contact communication device according to claim 1 is characterized in that far-end slave circuit output end is connected with muting control circuit by the level shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02225404U CN2582299Y (en) | 2002-01-22 | 2002-01-22 | Internal liaison communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02225404U CN2582299Y (en) | 2002-01-22 | 2002-01-22 | Internal liaison communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582299Y true CN2582299Y (en) | 2003-10-22 |
Family
ID=33702617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02225404U Expired - Fee Related CN2582299Y (en) | 2002-01-22 | 2002-01-22 | Internal liaison communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582299Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913385B (en) * | 2006-07-14 | 2011-03-30 | 广州矽金塔电子有限公司 | Controllable frequency modulation transmitting method and its device and application |
| CN109813976A (en) * | 2017-11-20 | 2019-05-28 | 上海普锐马电子有限公司 | A kind of hand-held electrostatic discharging generator |
-
2002
- 2002-01-22 CN CN02225404U patent/CN2582299Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913385B (en) * | 2006-07-14 | 2011-03-30 | 广州矽金塔电子有限公司 | Controllable frequency modulation transmitting method and its device and application |
| CN109813976A (en) * | 2017-11-20 | 2019-05-28 | 上海普锐马电子有限公司 | A kind of hand-held electrostatic discharging generator |
| CN109813976B (en) * | 2017-11-20 | 2024-05-10 | 上海普锐马电子有限公司 | Handheld electrostatic discharge generating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103260105B (en) | A kind of method and apparatus utilizing the power supply of electronic equipment to power to ANC earphone | |
| US5761320A (en) | Audio distribution system having programmable zoning features | |
| CN1859813B (en) | Signal switching method for internal and external microphone | |
| WO2005115051A1 (en) | Wireless device for capturing multiple channel audio | |
| US20050190932A1 (en) | Streophonic apparatus having multiple switching function and an apparatus for controlling sound signal | |
| CN2582299Y (en) | Internal liaison communication equipment | |
| CN1881989A (en) | Mobile communication terminal with bone conductive speaker and drive method thereof | |
| CN208489969U (en) | Internet of Things sound integral machine | |
| CN214851794U (en) | System for automatically switching channels of three types of microphones | |
| CN217643731U (en) | Dual-mode wireless sound production device or wireless earphone or wireless sound box intelligent switching system | |
| CN216625967U (en) | Intelligent voice recognition interphone | |
| CN207589159U (en) | The multiple sound resource audio switch that intelligently detecting switches | |
| CN200983665Y (en) | Bluetooth portable voice amplification headphone | |
| CN112565982B (en) | Interactive sound box and sound reinforcement method using same | |
| CN217363256U (en) | 2.1 sound track K sings sound equipment all-in-one | |
| CN216817803U (en) | K sings storehouse and wireless earphone K sings system and wireless earphone conversation system of charging | |
| CN101212261B (en) | Digital train broadcast transmitter and control method | |
| CN2540068Y (en) | Broadcasting system terminal controller | |
| CN219644092U (en) | Audio frequency sound effect switching circuit and earphone | |
| CN217363306U (en) | From taking speaker and external speaker control switching circuit | |
| CN2489525Y (en) | Sound converter for hand-held telephone | |
| CN1036173C (en) | Household monitoring terminal with telephone | |
| CN2859965Y (en) | Audio commutation circuit | |
| CN212909790U (en) | Full high definition FHD area stores four unification indoor sets of all-round type | |
| CN217508780U (en) | Combined broadcast power amplification system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhongshan Shengmading Electronic Element Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |