CN204145596U - A kind of Smart Home Telephone control system based on power line carrier - Google Patents
A kind of Smart Home Telephone control system based on power line carrier Download PDFInfo
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- CN204145596U CN204145596U CN201420277652.5U CN201420277652U CN204145596U CN 204145596 U CN204145596 U CN 204145596U CN 201420277652 U CN201420277652 U CN 201420277652U CN 204145596 U CN204145596 U CN 204145596U
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Abstract
The utility model discloses a kind of Smart Home Telephone control system based on power line carrier, it is characterized in that: with chip processor AT89S51, dual-tone multifrequency coder and decoder ic CM8870, voice recording and playback ic ISD4003 and power line modem PLC101s-12 for core, realized the intelligent domestic system of Long-distance Control by existing telephone network terminal.When there being phone to squeeze into, system detects bell signal, if the unmanned response of phone in 3 rings, system automatic off-hook, the decoded digital signal of DTMF sends into CPU, now can record according to voice message, and stored in CPU, when owner returns, can playback by play button.This system can help people not miss any phone information, the life be convenient for people to and work.
Description
Technical field
The utility model relates to intelligent home control system field, especially in daily life at home, and in the Work Telephone system of office.
Background technology
Smart Home not only has traditional inhabitation function, comfortable safety is provided, high-grade and pleasant family life space, also changed into the instrument of active wisdom by original passive static structures, omnibearing information exchange functions is provided, help people effectively to arrange the time, strengthening the fail safe of life staying idle at home, is even various energy conservation fund.
Summary of the invention
The purpose of this utility model is to provide a kind of intelligent telephone system based on power line carrier, can realize phone when not answering, automatic off-hook, auto-pickup, automatic recording, the function automatically hung up.
The purpose of this utility model realizes as follows: native system comprises telephone system, carrier communication system and executive system, and wherein telephone system is made up of single-chip microcomputer governor circuit, phone ringing testing circuit, phone automatic off-hook and on-hook circuit, dtmf signal decoding circuit, sound circuit, audio amplifier circuit.With chip processor AT89S51, dual-tone multifrequency coder and decoder ic CM8870, voice recording and playback ic ISD4003 and power line modem PLC101s-12 for core, wherein, ring detecting circuit output is connected with the external interrupt of single-chip microcomputer, single-chip microcomputer is connected with dtmf signal decoding circuit, single-chip microcomputer is connected with on-hook circuit with imitate pick machine, single-chip microcomputer is connected with sound circuit and with audio amplifier circuit.
Realized the intelligent domestic system of Long-distance Control by existing telephone network terminal, give the circuit theory of this system, hardware designs and Software for Design.When there being phone to squeeze into, system detects bell signal, if the unmanned response of phone in 3 rings, system automatic off-hook, the decoded digital signal of DTMF sends into CPU, now can carry out message and Intelligent housing service, before Intelligent housing, need to carry out identity just test, after password is correct, the operation carrying out next step can be pointed out by note sound.When squeezing into without phone, play telephone message by button.
The beneficial effects of the utility model are: this system can help you not miss any phone information, facilitate your life and work, the utility model can when not changing any equipment in family based on the Smart Home Telephone control system of power line carrier, to the electrical equipment of family (as electric rice cooker, microwave oven, television set etc.), light, power supply, home environment control, people are enjoyed high-tech brings the easy and modern life of fashion.In addition, the utility model reasonable in design, be skillfully constructed novelty, is easy to apply.
accompanying drawing illustrates:
Fig. 1 is the utility model system architecture diagram.
Fig. 2 is the utility model system way circuit figure.
Fig. 3 is the utility model phone ringing testing circuit.
Fig. 4 is the utility model system audio amplifying circuit.
Fig. 5 is the utility model software flow pattern.
embodiment:
With reference to each figure, a kind of Smart Home Telephone control system based on power line carrier, it is characterized in that: with chip processor AT89S51, dual-tone multifrequency coder and decoder ic CM8870, voice recording and playback ic ISD4003 and power line modem PLC101s-12 for core, realized the intelligent domestic system of Long-distance Control by existing telephone network terminal, give the circuit theory of this system, hardware designs and Software for Design.
1, phone ringing testing circuit
We will be controlled the electrical equipment of specifying by telephone set, just must obtain communication by phone and system, because system and ordinary phone are attempted by same telephone wire, the signal that system just must identify institute's incoming call is kith and kin's telephone ring signal or system control signal.According to people's custom, do an agreement with the number of times of ring, if nobody answers the call in ring cipher 5 sound, system then thinks control system number, and imitate pick machine mechanism just work connects phone.This module is exactly the measuring ability that can realize phone ringing.Ring is the sine wave of 25 ± 3 volts, and humorous bell distortion is not more than 10%, voltage effective value 90 ± 15V.Ring, was namely sent for the cycle with 5 seconds for 1 second, within 4 seconds, broke.The feature higher according to ringing signal voltage, first can use electric capacity C2 to carry out current limliting step-down, then input to photoelectrical coupler.Isolation through optocoupler is changed, and the waveform exported from photoelectrical coupler is the sine wave of switch-on and-off, then through the square wave of inverter 74LS04 shaping outputting standard.Square-wave signal just directly can export the INT0 interrupt counter input port of single-chip microcomputer to, completes the process that whole ring back tone detects and counts.
2, phone automatic off-hook and on-hook circuit
After system obtains request connection signal, system will give a response will an analog telephone circuit for answering, will have the circuit of analog telephone end of conversation on-hook to terminate communication, imitate pick machine circuit forms with simulation on-hook circuit simulates dislodging machine module simultaneously.When CPU detects that ringing number is 5, CPU controls relay, and the resistance of 200 Ω is sealed on telephone wire, makes telephone wire loop current >=30mA, thus telephone service system is connected with the machine phone, is now off hook state; On the contrary, by getting back to hook state after CPU release relay.
3, sound circuit
Voice comprise voice message, voice recording and recording playback three part.In the design, we adopt ISD4003 voice module, and ISD4003 speech chip adopts " analog quantity direct access " technology, and feature operation is simple; Voice signal when only needing during recording to add that a capacitance is connected to before ANAIN+ end; By the control of CPU to ISD4003, voice message signal is exported from AUDOUT end during playback, return on telephone wire through potentiometer dividing potential drop and transistor amplifier, this signal will be heard the opposing party of telephone wire; In addition, recording playback is after when CPU receives, button K1 presses signal, and the control of CPU to ISD4003 makes voice export from AUDOUT end, amplifies rear drive loud speaker carry out voice output through potentiometer dividing potential drop and audio amplifier circuit.
4, audio amplifier circuit
Audio amplifier circuit adopts D2822A integrated power amplifier, and it can drive 8 Ω, 1.5W.Operation principle: CPU to P1.2 port low level signal, thus makes triode 9015 conducting, make 5V power supply to be added on D2822-----start D2822, thus the signal that AUDOUT is arrived is through the positive terminal of D2822, and the signal after amplification exports from JP3.
Before using, first by native system exact connect ion, telephone wire in wall is inserted the bus mouth of the utility model device, and then telephone set is connected with the branching port of this device.When there being phone to squeeze into, system detects bell signal, if nobody answers the call in ring cipher 5 sound, system then thinks control system number, after system obtains request connection signal, system will give a response will an analog telephone circuit for answering, will have the circuit of analog telephone end of conversation on-hook in order to terminate communication simultaneously, and imitate pick machine circuit forms with simulation on-hook circuit simulates dislodging machine module.When CPU detects that ringing number is 5, CPU controls relay, and the resistance of 200 Ω is sealed on telephone wire, makes telephone wire loop current >=30mA, thus telephone service system is connected with the machine phone, is now off hook state; On the contrary, by getting back to hook state after CPU release relay.After imitate pick machine is connected, system will play voice message.By the control of CPU to ISD4003, voice message signal is exported from AUDOUT end during playback, return on telephone wire through potentiometer dividing potential drop and transistor amplifier, this signal will be heard the opposing party of telephone wire.In addition, recording playback is after when CPU receives, button K1 presses signal, and the control of CPU to ISD4003 makes voice export from AUDOUT end, amplifies rear drive loud speaker carry out voice output through potentiometer dividing potential drop and audio amplifier circuit.
The superiority of native system is to can be generalized in the control theory of Smart Home.Smart Home Telephone control system based on power line carrier can when not changing any equipment in family, to the electrical equipment of family (as electric rice cooker, microwave oven, television set etc.), light, power supply, home environment control, only need to dial a phone, just indiscriminately ad. as one wishes can control the opening and closing of electrical equipment in family, people are enjoyed high-tech brings the easy and modern life of fashion.
Claims (1)
1. the Smart Home Telephone control system based on power line carrier, native system comprises telephone system, carrier communication system and executive system, wherein telephone system is made up of single-chip microcomputer governor circuit, phone ringing testing circuit, phone automatic off-hook and on-hook circuit, dtmf signal decoding circuit, sound circuit, audio amplifier circuit, it is characterized in that: with chip processor AT89S51, dual-tone multifrequency coder and decoder ic CM8870, voice recording and playback ic ISD4003 and power line modem PLC101s-12 for core; It is characterized in that: ring detecting circuit output is connected with the external interrupt of single-chip microcomputer, single-chip microcomputer is connected with dtmf signal decoding circuit, single-chip microcomputer is connected with on-hook circuit with imitate pick machine, single-chip microcomputer is connected with sound circuit and with audio amplifier circuit; The intelligent domestic system of Long-distance Control is realized by existing telephone network terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277652.5U CN204145596U (en) | 2014-05-28 | 2014-05-28 | A kind of Smart Home Telephone control system based on power line carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277652.5U CN204145596U (en) | 2014-05-28 | 2014-05-28 | A kind of Smart Home Telephone control system based on power line carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145596U true CN204145596U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277652.5U Expired - Fee Related CN204145596U (en) | 2014-05-28 | 2014-05-28 | A kind of Smart Home Telephone control system based on power line carrier |
Country Status (1)
| Country | Link |
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| CN (1) | CN204145596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465798A (en) * | 2017-07-02 | 2017-12-12 | 昆山市克洛弗智能科技有限公司 | A kind of phone with identification malice harassing and wrecking |
-
2014
- 2014-05-28 CN CN201420277652.5U patent/CN204145596U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465798A (en) * | 2017-07-02 | 2017-12-12 | 昆山市克洛弗智能科技有限公司 | A kind of phone with identification malice harassing and wrecking |
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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: 20150204 Termination date: 20210528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |