CN201138848Y - Wireless talk back door bell for villa - Google Patents
Wireless talk back door bell for villa Download PDFInfo
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- CN201138848Y CN201138848Y CNU2007200568903U CN200720056890U CN201138848Y CN 201138848 Y CN201138848 Y CN 201138848Y CN U2007200568903 U CNU2007200568903 U CN U2007200568903U CN 200720056890 U CN200720056890 U CN 200720056890U CN 201138848 Y CN201138848 Y CN 201138848Y
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- 230000002093 peripheral effect Effects 0.000 claims description 6
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Abstract
The utility model relates to a wireless intercom doorbell of a villa, which comprises a doorway machine, an indoor machine and an electric lock; the doorway machine consists of a control unit, a receiving and demodulation circuit, a modulating and emitting circuit, an audio power amplification telephone, a preamplifier circuit, an operating circuit, an unlocking circuit and a duplexer; the indoor machine consists of a control unit, a receiving and demodulation circuit, a modulating and emitting circuit, an audio power amplification circuit, an audio preamplifier circuit, an operating circuit and a duplexer. The wireless intercom doorbell has reasonable lines that are connected through radio frequency signals; the doorway machine and the indoor machine require no connecting wires; the installation is facilitated; and the costs are low. The indoor machine can be moved for answering and can be used for controlling the unlocking of the doorway machine. Thus the wireless intercom doorbell can be used more conveniently.
Description
Technical field
The utility model relates to a kind of entryphone, particularly a kind of villa wireless talkback door bell.
Background technology
At present, the entryphone device adopts wired fixed installation mostly.Doorway machine and indoor set adopt wired connection, need be during installation from the doorway to connection of indoor room cloth, and subscriber computer generally is fixedly mounted on a certain position, 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 the room of villa is more, and the place is bigger, several floors are generally all arranged, and it is more inconvenient to seem during use.The mode that present user generally takes to adorn several subscriber computers more solves this problem, but can increase the quantity of wiring and indoor set so again, and device cost and engineering cost increase more.
The utility model content
The purpose of this utility model is to provide a kind of circuit reasonable, easy to install, can connect by radio frequency signal, and indoor set can move and answers and control the villa wireless talkback door bell that doorway machine is unblanked.
The purpose of this utility model can reach by following measure: a kind of villa wireless talkback door bell, comprise doorway machine, indoor set, electric control lock, it is characterized in that: doorway machine is by control unit, receiving demodulation circuit, modulation transmitter, audio power amplifier circuit, the audio frequency pre-amplification circuit, function circuit, unlock circuit, duplexer is formed, indoor set is by control unit, receiving demodulation circuit, modulation transmitter, audio power amplifier circuit, the audio frequency pre-amplification circuit, function circuit, duplexer is formed, control unit receives the demodulated digital signal of sending here from receiving demodulation circuit, and handle, and the coding digital signal that will send is delivered to modulation transmitter and is sent, also delivering to control unit from the operation signal of function circuit output handles, control unit produces ringing signal and sends into audio power amplifier circuit, ring prompting as doorway machine, the generation control signal of unblanking is opened electric control lock to unlock circuit control, receiving demodulation circuit also produces one tunnel audio signal input audio power amplifier circuit, the audio signal that the audio frequency pre-amplification circuit is sent is delivered to modulation transmitter, and after modulating amplification through modulation transmitter, the digital signal of sending here from control unit outputs to duplexer, control unit receives the demodulated digital signal of sending here from receiving demodulation circuit, and handle, and the coding digital signal that will send is delivered to modulation transmitter and is sent, also delivering to control unit from the operation signal of function circuit output handles, operating unit goes out to produce ringing signal and sends into audio power amplifier circuit, ring prompting as doorway machine, receiving demodulation circuit also produces one tunnel audio signal input audio power amplifier circuit, the audio signal that the audio frequency pre-amplification circuit is sent is delivered to modulation transmitter, and outputs to duplexer after the digital signal of sending here from control unit is modulated amplification through modulation transmitter.
The purpose of this utility model can also reach by following measure: control unit is made up of single-chip microcomputer, electricity erasable memorizer, peripheral circuit and control circuit.Control circuit is made up of single-chip microcomputer, electricity erasable memorizer, peripheral circuit and control circuit.Audio power amplifier circuit will carry out outputing to loud speaker after the power amplification from the audio signal of receiving demodulation circuit input.The audio frequency pre-amplification circuit is delivered to modulation transmitter with the audio signal of microphone generating through after the preposition amplification.Audio power amplifier circuit will carry out outputing to loud speaker after the power amplification from the audio signal of receiving demodulation circuit input.The audio frequency pre-amplification circuit is delivered to modulation transmitter with the audio signal of microphone generating through after the preposition amplification.
The utility model agree to have following advantage compared to existing technology:
1. circuit is reasonable, connects by radio frequency signal, need not the connecting wiring for doorway machine and indoor set again, installs more conveniently, and cost is lower.
2. indoor set can move and answer and control doorway machine and unblank, and uses more convenient.
Description of drawings
Fig. 1 is a system block diagram of the present utility model;
Fig. 2 is the circuit block diagram of doorway machine;
Fig. 3 is the circuit block diagram of indoor set.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):
With reference to Fig. 1, the utility model is made of doorway machine 1, indoor set 2, electric control lock 3.
With reference to Fig. 2, doorway machine 1 comprises control unit 101, receiving demodulation circuit 102, modulation transmitter 103, audio power amplifier circuit 104, audio frequency pre-amplification circuit 105, function circuit 106, unlock circuit 107, duplexer 108, loud speaker 109, microphone 110 etc.Control unit 101 is as the center control section of whole doorway machine, form by single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, its function comprises the demodulated digital signal that reception 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 modulation transmitter 103, sends; Reception is from the operation signal of function circuit 106 input and handle; Produce ringing signal and send into audio power amplifier circuit 104, as the ring prompting of doorway machine; The generation control signal control unlock circuit 107 of unblanking is opened electric lock; Storage doorway machine address code and address of indoor unit sign indicating number.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 power amplifier circuit, 104, one way word signals input single-chip microcomputer.Modulation transmitter 103 has the two-way input, and a way word signal input part connects single-chip microcomputer, produces the digital signal input that needs transmission, one road audio signal input end, the audio signal that input is brought by audio frequency pre-amplification circuit 105 by single-chip microcomputer.Two paths of signals outputs to duplexer 108 after ovennodulation is amplified.Audio power amplifier circuit 104 will carry out power amplification from the audio signal of receiving demodulation circuit 102 inputs and output to loud speaker 109.Audio frequency pre-amplification circuit 105 is sent into modulation transmitter 105 with the audio signal that microphone 110 produces through after the preposition amplification.Operation signals such as function circuit 106 reception users' calling, cancellation convert the discernible signal of single-chip microcomputer to and send into single-chip microcomputer.Unlock circuit 107 receives the control signal of being brought by control unit 101 of unblanking, and controls the electric lock switch then.
With reference to Fig. 3, indoor set comprises control unit 201, receiving demodulation circuit 202, modulation transmitter 203, audio power amplifier circuit 204, audio frequency pre-amplification circuit 205, function circuit 206, duplexer 207, loud speaker 208, microphone 209 etc.Control unit 201 is as the center control section of whole indoor set, and by single-chip microcomputer, electricity erasable memorizer, peripheral circuit and control circuit are formed.Its function comprises the demodulated digital signal that reception 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 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 doorway machine; Storage doorway machine address code and address of indoor unit sign indicating number.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.Modulation transmitter 203 has the two-way input, and a way word signal input part connects single-chip microcomputer, is produced the digital signal input that needs transmission by single-chip microcomputer; One road audio signal input end, the audio signal that input is brought by audio frequency pre-amplification circuit 205.Two paths of signals outputs to duplexer 207 after ovennodulation is amplified.Audio power amplifier circuit 204 will carry out power amplification from the audio signal of receiving demodulation circuit 202 inputs and output to loud speaker 208.Audio frequency pre-amplification circuit 205 is sent into modulation transmitter 203 with the audio signal that microphone 209 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.
Concrete workflow of the present utility model is as follows:
Before the use, with doorway machine and indoor set to sign indicating number: in communication distance, press simultaneously doorway machine and indoor set to the sign indicating number key, after both sides set up communication, doorway machine produces address of indoor unit at random by software, and self address and address of indoor unit sent to indoor set, simultaneously address of indoor unit is stored in the electricity erasable memorizer; Indoor set is stored in the electricity erasable memorizer for calling after receiving self address and doorway machine address.A doorway machine can be to yardage platform indoor set.
The visitor presses assignment key at the doorway machine place, this signal breaks away from holding state by interrupting waking doorway machine up, after control unit 101 detects this signal, single-chip microcomputer is sent doorway machine self address and call command word code into modulation transmitter 103, modulation is amplified after gone out by duplexer 108, antenna transmission, produce ringing signal simultaneously and send into audio power amplifier circuit 104, and open the power supply of audio power amplifier circuit 104, the doorway machine jingle bell.In the process of jingle bell, wait for the off-hook order of indoor set.
The control command that doorway machine is sent is sent into receiving demodulation circuit 202 after sending into duplexer 207 frequency-selectings via the antenna of indoor set, through send into the single-chip microcomputer of control unit 201 after filtering amplification and the demodulation by data output end.
After indoor set receives the call command that doorway machine sends, make comparison with the doorway machine address of electricity erasable memorizer stored earlier, as meet, single-chip microcomputer produces ringing signal and sends into audio power amplifier circuit 204, and open the power supply of audio power amplifier circuit 204, indoor set jingle bell.Pass through the off-hook order of function circuit 206 inputs in the process waits for user of jingle bell.After the user hears the ring prompting of indoor set, can answer with any indoor set.The user presses the talk key of indoor set, after single-chip microcomputer detects this order, modulation transmitter 203 is sent in self address and off-hook command word coding, modulation is amplified after gone out by duplexer 207, 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 indoor set sent is sent into receiving demodulation circuit 102 after sending into duplexer 108 frequency-selectings via the antenna of doorway machine, through send into the single-chip microcomputer of control unit 101 after filtering amplification and the demodulation by data output end.
Doorway machine is after the off-hook order of receiving indoor set, the address of indoor unit 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 doorway machine self address and off-hook command word coding output to modulation transmitter 103, modulation is amplified after gone out by duplexer 108, antenna transmission, other indoor set is 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.The single-chip microcomputer of doorway machine control unit 101 stops to export ringing signal after sending off-hook order, opens the power supply of audio frequency pre-amplification circuit 105, enters talking state.
In talking state, the user can press unlock key notice control unit 201 and send unlock command, single-chip microcomputer is after receiving the operation of unblanking, modulation transmitter 203 is sent in indoor set self address and unlock command word code, modulation is amplified after gone out by duplexer 207, antenna transmission, receiving that doorway machine unblanks behind the confirmation signal, the power supply of turning off 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 press-to-talk key notice control unit 201 on-hooks, single-chip microcomputer is after the operation of receiving on-hook, modulation transmitter 203 is sent in self address and on-hook command word coding, modulation is amplified after gone out by duplexer 207, antenna transmission, after receiving doorway machine on-hook confirmation signal, the power supply of turning off modulation transmitter 203, audio power amplifier circuit 204 and audio frequency pre-amplification circuit 205 enters holding state.
Doorway machine is after the on-hook order of receiving indoor set, the address of indoor unit 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 modulation transmitter 103, modulation is amplified after gone out by duplexer 108, antenna transmission, and turn off the power supply of receiving demodulation circuit 102, modulation transmitter 103, audio power amplifier circuit 104, audio frequency pre-amplification circuit 105, enter holding state.
Doorway machine is after receiving the unlock command of indoor set, the address of indoor unit that address code in the unlock command is separated with off-hook compares, as symbol, self address and on-hook are confirmed that the command word coding outputs to modulation transmitter 103, modulation is amplified after gone out by duplexer 108, antenna transmission, and send the control signal of unblanking and give unlock circuit 107, unlock circuit 107 is opened electric lock for the visitor.Last Single-chip Controlling is turned off the power supply of receiving demodulation circuit 102, modulation transmitter 103, audio power amplifier circuit 104, audio frequency pre-amplification circuit 105, enters holding state.
Claims (7)
1. villa wireless talkback door bell, comprise doorway machine (1), indoor set (2), electric control lock (3), it is characterized in that: doorway machine (1) is by control unit (101), receiving demodulation circuit (102), modulation transmitter (103), audio power amplifier circuit (104), audio frequency pre-amplification circuit (105), function circuit (106), unlock circuit (107), duplexer (108) is formed, indoor set (2) is by control unit (201), receiving demodulation circuit (202), modulation transmitter (203), audio power amplifier circuit (204), audio frequency pre-amplification circuit (205), function circuit (206), duplexer (207) is formed, control unit (101) receives the demodulated digital signal of sending here from receiving demodulation circuit (102), and handle, and the coding digital signal that will send is delivered to modulation transmitter (103) and is sent, also delivering to control unit (101) from the operation signal of function circuit (106) output handles, control unit (101) produces ringing signal and sends into audio power amplifier circuit (104), ring prompting as doorway machine, the generation control signal of unblanking is opened electric control lock (3) to unlock circuit (107) control, receiving demodulation circuit (102) also produces one tunnel audio signal input audio power amplifier circuit (104), the audio signal that audio frequency pre-amplification circuit (105) is sent is delivered to modulation transmitter (103), and after passing through modulation transmitter (103) modulation amplification, the digital signal of sending here from control unit (101) outputs to duplexer (108), control unit (201) receives the demodulated digital signal of sending here from receiving demodulation circuit (202), and handle, and the coding digital signal that will send is delivered to modulation transmitter (203) and is sent, also delivering to control unit (201) from the operation signal of function circuit (206) output handles, operating unit (201) goes out to produce ringing signal and sends into audio power amplifier circuit (204), ring prompting as doorway machine, receiving demodulation circuit (202) also produces one tunnel audio signal input audio power amplifier circuit (204), the audio signal that audio frequency pre-amplification circuit (205) is sent is delivered to modulation transmitter (203), and outputs to duplexer (207) after the digital signal of sending here from control unit (201) is passed through modulation transmitter (203) modulation amplification.
2. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: control unit (1) is made up of single-chip microcomputer, electricity erasable memorizer, peripheral circuit and control circuit.
3. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: control circuit (2) is made up of single-chip microcomputer, electricity erasable memorizer, peripheral circuit and control circuit.
4. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: audio power amplifier circuit (104) will carry out outputing to loud speaker (109) after the power amplification from the audio signal of receiving demodulation circuit (102) input.
5. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: audio frequency pre-amplification circuit (105) is delivered to modulation transmitter (103) with the audio signal that microphone (110) produces through after the preposition amplification.
6. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: audio power amplifier circuit (204) will carry out outputing to loud speaker (208) after the power amplification from the audio signal of receiving demodulation circuit (202) input.
7. a kind of villa wireless talkback door bell according to claim 1 is characterized in that: audio frequency pre-amplification circuit (205) is delivered to modulation transmitter (103) with the audio signal that microphone (209) produces through after the preposition amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200568903U CN201138848Y (en) | 2007-09-12 | 2007-09-12 | Wireless talk back door bell for villa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200568903U CN201138848Y (en) | 2007-09-12 | 2007-09-12 | Wireless talk back door bell for villa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138848Y true CN201138848Y (en) | 2008-10-22 |
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ID=40039528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200568903U Expired - Fee Related CN201138848Y (en) | 2007-09-12 | 2007-09-12 | Wireless talk back door bell for villa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138848Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895714A (en) * | 2010-08-17 | 2010-11-24 | 厦门狄耐克电子科技有限公司 | Wireless videophone talkback system |
-
2007
- 2007-09-12 CN CNU2007200568903U patent/CN201138848Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895714A (en) * | 2010-08-17 | 2010-11-24 | 厦门狄耐克电子科技有限公司 | Wireless videophone talkback system |
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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: 20081022 Termination date: 20130912 |