CN201114572Y - Mobile building inter-speaking device - Google Patents
Mobile building inter-speaking device Download PDFInfo
- Publication number
- CN201114572Y CN201114572Y CNU2007200571766U CN200720057176U CN201114572Y CN 201114572 Y CN201114572 Y CN 201114572Y CN U2007200571766 U CNU2007200571766 U CN U2007200571766U CN 200720057176 U CN200720057176 U CN 200720057176U CN 201114572 Y CN201114572 Y CN 201114572Y
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- building talkback
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Abstract
The utility model discloses a mobile building talkback device, which comprises a building talkback doorphone, a mobile sub-machine and a mobile sub-machine access terminal; the mobile sub-machine access terminal is connected with the building talkback doorphone; the mobile sub-machine access terminal consists of a first control unit, a first receiving and demodulation circuit, a first modulation and emission circuit, an audio amplifying circuit, an audio matching circuit, a circuit which detects and generates state control signals of building talkback, a building talkback system interface and a diplexer; the first control unit is respectively connected with the first receiving and demodulation circuit, the first modulation and emission circuit and the circuit which detects and generates state control signals of building talkback; the mobile sub-machine consists of a second control unit, a second receiving and demodulation circuit, a second modulation and emission circuit, an audio power amplifier circuit, an audio preamplification circuit, an operating circuit and a diplexer, and the second control unit is respectively connected with the second receiving and demodulation circuit, the second modulation and emission circuit and the operating circuit.
Description
Technical field
The utility model relates to a kind of building talkback device.
Background technology
At present, the building talkback device adopts fixed installation mostly, its indoor set generally is contained in the room, all to go to answer and open the door when having the guest visiting to hard-wired place at every turn, very inconvenient, particularly more in the room, seem more inconvenient in the time of local big or duplex, the mode that present user generally takes to adorn several indoor sets more solves this problem, but can increase the quantity of wiring and extension set so again, and device cost and engineering cost increase more.
Summary of the invention
Shortcoming at prior art, the purpose of this utility model is to provide a kind of portable building talkback device, for indoor set is mixed mobile handset, under the prerequisite of the use that does not influence original indoor set, allow the user can with mobile handset finish indoor set called, reply, converse, unblank, function such as calling.
To achieve these goals, the technical solution of the utility model is: a kind of portable building talkback device, comprise the building talkback doorway machine, and it comprises that also mobile handset and mobile handset access terminal, this moves handset and accesses terminal and be connected with the building talkback doorway machine; Described mobile handset accesses terminal and comprises that first control unit, first receiving demodulation circuit, first modulation transmitter, audio amplifier circuit, audio frequency match circuit, building talkback state control signal detect and generation circuit, building conversational system interface and duplexer are formed, and described first control unit detects and circuit takes place with first receiving demodulation circuit, first modulation transmitter, building talkback state control signal respectively and is connected; Described mobile handset comprises second control unit, second receiving demodulation circuit, second modulation transmitter, audio power amplifier circuit, audio frequency pre-amplification circuit, function circuit and duplexer composition, and second control unit is connected with second receiving demodulation circuit, second modulation transmitter, function circuit respectively.
Described first control unit is made up of single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, and first receiving demodulation circuit is received and handles by the demodulated digital signal that digital signal output end sends; The digital signal that coding will send is sent into the digital signal input end of first modulation transmitter and is sent; The building talkback state control signal that reception building talkback state control signal detects and the generation circuit is brought is also handled;
Described first receiving demodulation circuit receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, one tunnel audio signal input audio amplifier circuit, another way word signal input single-chip microcomputer;
Described first modulation transmitter has the two-way input, one way word signal input part, connect single-chip microcomputer, producing the digital signal that needs to send by single-chip microcomputer imports, another road audio signal input end, the audio signal that input is brought by the audio frequency match circuit, two paths of signals outputs to duplexer after ovennodulation is amplified;
Described audio amplifier circuit will carry out signal from the audio signal of first receiving demodulation circuit input and amplify the tone frequency channel wire that outputs to the building talkback circuit;
The audio signal of bringing on the tone frequency channel wire of described audio frequency match circuit with the building talkback circuit is adjusted to amplitude that is fit to modulate emission and the audio signal input end of sending into first modulation transmitter;
Described building talkback state control signal detects and the signal that the control signal such as calling, cancellation, off-hook, on-hook on the holding wire of electric circuit inspection building conversational system service wire takes place and convert the identification of monolithic function to is sent into single-chip microcomputer and judged use for single-chip microcomputer, and calling, off-hook, the on-hook that single-chip microcomputer is brought, conversion of signals such as unblank become the standard signal of building conversational system to deliver on the holding wire of building conversational system service wire;
Described building conversational system interface inserts the building talkback wireless access terminal with tone frequency channel wire, control line, the data wire of building talkback.
Described second control unit is made up of single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, and second receiving demodulation circuit is received and handles by the demodulated digital signal that digital signal output end sends; The digital signal that coding will send is sent into the digital signal input end of second modulation transmitter and is sent; Reception is from the operation signal of function circuit input and handle; Produce ringing signal and send into the ring prompting of audio power amplifier circuit as mobile handset;
Described second receiving demodulation circuit receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, another road audio signal input audio power amplifier circuit, way word signal input single-chip microcomputer;
Described second modulation transmitter has the two-way input, one way word signal input part, connect single-chip microcomputer, producing the digital signal that needs to send by single-chip microcomputer imports, another road audio signal input end, the audio signal that input is brought by the audio frequency pre-amplification circuit, two paths of signals outputs to duplexer after ovennodulation is amplified;
Described audio power amplifier circuit will carry out power amplification from the audio signal of second receiving demodulation circuit input and output to loud speaker;
Described audio frequency pre-amplification circuit is sent into second modulation transmitter with the audio signal that the miaow head produces through after the preposition amplification;
Operation signals such as described function circuit reception user's calling, cancellation convert the discernible signal of single-chip microcomputer to and send into single-chip microcomputer.
Produce ringing signal by the single-chip microcomputer in second control unit,, be coupled to the ring prompting of audio power amplifier circuit as mobile handset by the output of single-chip processor i/o mouth.
Replace receiving demodulation circuit and modulation transmitter with the cordless telephone integrated chip.
Compared with prior art, the beneficial effects of the utility model are: can conveniently add one or more mobile handsets for original indoor set, it is big that user's use and opereating specification become; With original indoor set and connect or use separately, do not influence the use of original indoor unit in the use; The access way advantages of simple.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a system applies structural representation of the present utility model.
Fig. 2 is that the utility model moves the circuit block diagram that handset accesses terminal.
Fig. 3 be the utility model move handset circuit block diagram.
Embodiment
See also Fig. 1, the building talkback doorway machine is contained in front door, move handset 1 wired connection that accesses terminal with building talkback, building word intercommunication is moved handset and is accessed terminal and 1 by building word intercom system interface audio signal wire, the intercommunication control signal wire of intercom system inserted building talkback and move handset and access terminal; Building talkback moves handset and accesses terminal and be connected with mobile handset 2 by radiofrequency signal; Mobile handset 2 can be placed on indoor any place.Before using building talkback moved that handset accesses terminal and mobile handset is carried out sign indicating number, code value is existed in the electricity erasable memorizer in separately the control unit.
See also Fig. 2, first control unit 101 moves the center control section that handset accesses terminal as whole building talkback, form by single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, its function comprises the demodulated digital signal that reception first receiving demodulation circuit 102 sends by digital signal output end, and handles; The digital signal that coding will send is sent into the digital signal input end of first modulation transmitter 103, sends; The building talkback state control signal that reception building talkback state control signal detects and generation circuit 106 is brought is also handled; Control the state of building conversational system by state control signal detection of control building talkback and generation circuit 106 simulation building talkback state control signals; The storage building talkback moves handset access terminal address code and mobile handset address code.
First receiving demodulation circuit 102 receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, one tunnel audio signal input audio amplifier circuit, 104, one way word signals input single-chip microcomputer.
First modulation transmitter 103 has the two-way input, one way word signal input part, connect single-chip microcomputer, producing the digital signal that needs to send by single-chip microcomputer imports, one road audio signal input end, the audio signal that input is brought by the preposition match circuit 105 of audio frequency, two paths of signals outputs to duplexer 108 after ovennodulation is amplified.
Audio amplifier circuit 104 will carry out signal from the audio signal of first receiving demodulation circuit, 102 inputs and amplify the tone frequency channel wire that outputs to the building talkback circuit.
The audio signal of bringing on the tone frequency channel wire of audio frequency match circuit 105 with the building talkback circuit is adjusted to the audio signal input end that the amplitude that is fit to modulation is sent into first modulation transmitter 103.
The signal that the building talkback state control signal detected and took place control signal such as calling on the holding wire that circuit 106 detects the building conversational system service wires, cancellation, off-hook, on-hook and converts the identification of monolithic function to is sent into single-chip microcomputer and is judged use for single-chip microcomputer; Calling, off-hook, the on-hook that single-chip microcomputer is brought, conversion of signals such as unblank become the standard signal of building conversational system to deliver on the holding wire of building conversational system service wire.
Building conversational system interface 107 inserts the building talkback wireless access terminal with tone frequency channel wire, control line, the data wire of building talkback.
See also Fig. 3, second control unit 201 is as the center control section of whole mobile handset, form by single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, its function comprises the demodulated digital signal that reception second receiving demodulation circuit 202 sends by digital signal output end, and handles; The digital signal that coding will send is sent into the digital signal input end of second modulation transmitter 203, sends; Reception is from the operation signal of function circuit 206 input and handle; Produce ringing signal and send into audio power amplifier circuit 204, as the ring prompting of mobile handset; The storage building talkback moves handset access terminal address code and mobile handset address code.
Second receiving demodulation circuit 202 receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, one tunnel audio signal input audio power amplifier circuit, 204, one way word signals input single-chip microcomputer.
Audio power amplifier circuit 204 will carry out power amplification from the audio signal of second receiving demodulation circuit, 202 inputs and output to loud speaker.
Audio frequency pre-amplification circuit 205 is sent into second modulation transmitter 203 with the audio signal that the miaow head produces through after the preposition amplification.
Operation signals such as function circuit 206 reception users' calling, cancellation convert the discernible signal of single-chip microcomputer to and send into single-chip microcomputer.
Receiving demodulation sends with modulation and is in different frequency bands, has guaranteed to send and received can not interfere with each other.The tranmitting frequency of doorway machine is the same with the receive frequency of indoor set, and the receive frequency of doorway machine is the same with the tranmitting frequency of indoor set.
The working method of telephone set and the wireless automatic switchover device of building talkback device is as follows:
When building talkback moves the address code of reading the telephone set wireless access terminal first control unit 101 that handset accesses terminal detects and take place the call signal that circuit 106 detects doorway machine by the building talkback state control signal after from electricity erasable memorizer, the data input pin of first modulation transmitter 103 will be delivered to behind call command and the geocoding, signal after the modulation amplifies through filtering, deliver to duplexer 108, go out via antenna transmission.If first control unit 101 detects by the building talkback state control signal and circuit 106 takes place and detects the cancelling signal that doorway machine brings or the off hook signal of indoor unit in waiting for the process of mobile handset off-hook, then send delivering to first modulation transmitter 103 behind mandatum cassatorium and the geocoding.
This call signal arrives second receiving demodulation circuit 202 through antenna, the duplexer 207 of mobile handset, through demodulation by filter, restore digital signal, deliver to second control unit 201 by second receiving demodulation circuit, 202 digital signal output ends, after single-chip microcomputer in second control unit 201 receives this order, the address of depositing in address code in this order and the electricity erasable memorizer is compared, as mail returned on ground of incorrect address, just do not handle, otherwise single-chip microcomputer is just sent ringing signal to audio power amplifier circuit 204, and jingle bell is notified the user.The not busy signal of encoding is simultaneously sent into second modulation transmitter, 203 data input pins and is sent.Pass through the off-hook order of function circuit 206 inputs in the process waits for user of jingle bell.During this time as receive that building talkback moves the then mobile handset of cancelling signal that handset accesses terminal and stops jingle bell, get back to holding state.
After the user hears the ring prompting of mobile handset, can answer with any mobile handset.The user presses the talk key of mobile handset, after single-chip microcomputer detects this order, second modulation transmitter 203 is sent in self address and off-hook command word coding, modulation is amplified after gone out by duplexer, antenna transmission, stop to export ringing signal simultaneously, open the power supply of audio frequency pre-amplification circuit 205, enter talking state.The control command that mobile handset is sent moves via building talkback and sends into first receiving demodulation circuit 102 after antenna that handset accesses terminal is sent into the duplexer frequency-selecting, through filtering amplify and demodulation after send into the single-chip microcomputer of first control unit 101 by data output end.
Building talkback moves handset and accesses terminal after the off-hook order of receiving mobile handset, the mobile handset address that address code in the off-hook order is separated with the electricity erasable memorizer stored compares, if any what meet, single-chip microcomputer with building talkback move handset access terminal self address and off-hook command word coding output to first modulation transmitter 103, modulation is amplified after by duplexer, antenna transmission is gone out, other moves handset after receiving this order, the doorway machine address of isolating the address and self depositing from order compares, as meet, just stop jingle bell.The indoor set of off-hook does not process off-hook order.Building talkback moves handset and accesses terminal after the single-chip microcomputer of first control unit 101 sends off-hook order, stop to export ringing signal, send off hook signal by detection of building talkback state control signal and generation circuit 106, and pass through the detection of building talkback state control signal and no longer jingle bell of circuit 106 control indoor sets takes place, open the power supply of audio frequency match circuit 105 then, enter talking state.
In talking state, the user can press unlock key and notify second control unit 201 to send unlock command, single-chip microcomputer is after receiving the operation of unblanking, second modulation transmitter 203 is sent in mobile handset self address and unlock command word code, modulation is amplified after gone out by duplexer, antenna transmission, receiving that building talkback moves handset and accesses terminal and unblank behind the confirmation signal, the power supply of turning off second modulation transmitter 203, audio power amplifier circuit 204 and audio frequency pre-amplification circuit 205 enters holding state.Need not unblank as the user, but the press-to-talk key notifies second control unit 201 on-hooks, single-chip microcomputer is after the operation of receiving on-hook, second modulation transmitter 203 is sent in self address and on-hook command word coding, modulation is amplified after gone out by duplexer, antenna transmission, receiving that building talkback moves handset and accesses terminal behind the on-hook confirmation signal, the power supply of turning off second modulation transmitter 203, audio power amplifier circuit 204 and audio frequency pre-amplification circuit 205 enters holding state.
Building talkback moves handset and accesses terminal after the on-hook order of receiving mobile handset, the mobile handset address that address code in the on-hook order is separated with off-hook compares, as meet, self address and on-hook are confirmed that the command word coding outputs to first modulation transmitter 103, modulation is amplified after gone out by duplexer, antenna transmission, and turn off first modulation transmitter 103, audio amplifier circuit 104, audio frequency match circuit 105, detect by the building talkback state control signal then and circuit 106 takes place and send on-hook signal, enter holding state then.
Building talkback moves handset and accesses terminal after receiving the unlock command of mobile handset, the mobile handset address that address code in the unlock command is separated with off-hook compares, as meet, self address and on-hook are confirmed that the command word coding outputs to first modulation transmitter 103, modulate amplification after go out, and send unlocking signal by detection of building talkback state control signal and generation circuit 106 and open electric lock for the visitor by duplexer, antenna transmission.Last Single-chip Controlling is turned off first modulation transmitter 103, audio amplifier circuit 104, audio frequency match circuit 105, enters holding state.
Above-mentioned solution preferably is to produce ringing signal by the single-chip microcomputer in second control unit 201, by the output of single-chip processor i/o mouth, is coupled to the ring prompting of audio power amplifier circuit 204 as mobile handset.
Above-mentioned better solution is to finish receiving demodulation unit and corresponding audio frequency of modulation sending unit and data-transformation facility with the analog cordless telephone technology, can select the cordless telephone integrated chip for use, and peripheral circuit is simple and easy to debugging.Cordless Telephone Technology has the selection function of multichannel transmission, and the multichannel transmission makes above-mentioned building talkback move handset and accesses terminal and the not mutual interference mutually when many covers use together of mobile handset, can not have influence on the use of home cordless phone again.
Claims (5)
1, a kind of portable building talkback device comprises the building talkback doorway machine, it is characterized in that: it comprises that also mobile handset and mobile handset access terminal, and this moves handset and accesses terminal and be connected with described building talkback doorway machine; Described mobile handset accesses terminal and comprises that first control unit, first receiving demodulation circuit, first modulation transmitter, audio amplifier circuit, audio frequency match circuit, building talkback state control signal detect and generation circuit, building conversational system interface and duplexer are formed, and described first control unit detects and circuit takes place with first receiving demodulation circuit, first modulation transmitter, building talkback state control signal respectively and is connected; Described mobile handset comprises second control unit, second receiving demodulation circuit, second modulation transmitter, audio power amplifier circuit, audio frequency pre-amplification circuit, function circuit and duplexer composition, and second control unit is connected with second receiving demodulation circuit, second modulation transmitter, function circuit respectively.
2, portable building talkback device as claimed in claim 1 is characterized in that:
Described first control unit is made up of single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, and first receiving demodulation circuit is received and handles by the demodulated digital signal that digital signal output end sends; The digital signal that coding will send is sent into the digital signal input end of first modulation transmitter and is sent; The building talkback state control signal that reception building talkback state control signal detects and the generation circuit is brought is also handled;
Described first receiving demodulation circuit receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, one tunnel audio signal input audio amplifier circuit, another way word signal input single-chip microcomputer;
Described first modulation transmitter has the two-way input, one way word signal input part, connect single-chip microcomputer, producing the digital signal that needs to send by single-chip microcomputer imports, another road audio signal input end, the audio signal that input is brought by the audio frequency match circuit, two paths of signals outputs to duplexer after ovennodulation is amplified;
Described audio amplifier circuit will carry out signal from the audio signal of first receiving demodulation circuit input and amplify the tone frequency channel wire that outputs to the building talkback circuit;
The audio signal of bringing on the tone frequency channel wire of described audio frequency match circuit with the building talkback circuit is adjusted to amplitude that is fit to modulate emission and the audio signal input end of sending into first modulation transmitter;
Described building talkback state control signal detects and the signal that the control signal such as calling, cancellation, off-hook, on-hook on the holding wire of electric circuit inspection building conversational system service wire takes place and convert the identification of monolithic function to is sent into single-chip microcomputer and judged use for single-chip microcomputer, and calling, off-hook, the on-hook that single-chip microcomputer is brought, conversion of signals such as unblank become the standard signal of building conversational system to deliver on the holding wire of building conversational system service wire;
Described building conversational system interface inserts the building talkback wireless access terminal with tone frequency channel wire, control line, the data wire of building word intercommunication.
3, portable building talkback device as claimed in claim 1 is characterized in that:
Described second control unit is made up of single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, and second receiving demodulation circuit is received and handles by the demodulated digital signal that digital signal output end sends; The digital signal that coding will send is sent into the digital signal input end of second modulation transmitter and is sent; Reception is from the operation signal of function circuit input and handle; Produce ringing signal and send into the ring prompting of audio power amplifier circuit as mobile handset;
Described second receiving demodulation circuit receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, another road audio signal input audio power amplifier circuit, way word signal input single-chip microcomputer;
Described second modulation transmitter has the two-way input, one way word signal input part, connect single-chip microcomputer, producing the digital signal that needs to send by single-chip microcomputer imports, another road audio signal input end, the audio signal that input is brought by the audio frequency pre-amplification circuit, two paths of signals outputs to duplexer after ovennodulation is amplified;
Described audio power amplifier circuit will carry out power amplification from the audio signal of second receiving demodulation circuit input and output to loud speaker;
Described audio frequency pre-amplification circuit is sent into second modulation transmitter with the audio signal that the miaow head produces through after the preposition amplification;
Operation signals such as described function circuit reception user's calling, cancellation convert the discernible signal of single-chip microcomputer to and send into single-chip microcomputer.
4, portable building talkback device as claimed in claim 3 is characterized in that: produce ringing signal by the single-chip microcomputer in second control unit, by the output of single-chip processor i/o mouth, be coupled to the ring prompting of audio power amplifier circuit as mobile handset.
5, as claim 2 or 3 described portable building talkback devices, it is characterized in that: replace receiving demodulation circuit and modulation transmitter with the cordless telephone integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200571766U CN201114572Y (en) | 2007-09-19 | 2007-09-19 | Mobile building inter-speaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200571766U CN201114572Y (en) | 2007-09-19 | 2007-09-19 | Mobile building inter-speaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114572Y true CN201114572Y (en) | 2008-09-10 |
Family
ID=39966321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200571766U Expired - Fee Related CN201114572Y (en) | 2007-09-19 | 2007-09-19 | Mobile building inter-speaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201114572Y (en) |
-
2007
- 2007-09-19 CN CNU2007200571766U patent/CN201114572Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20130919 |