CN204013583U - Intelligent domestic system in wisdom building - Google Patents

Abstract

The utility model provides the intelligent domestic system in a kind of wisdom building.Intelligent domestic system in the utility model wisdom building, comprising: device of controlling domestic electrical appliance and telephone set; Wherein, device of controlling domestic electrical appliance, comprising: microprocessor, ring change-over circuit, audio decoding circuit, control functional circuit and imitate pick machine circuit; Ring change-over circuit, audio decoding circuit and control functional circuit are connected with microprocessor by serial port, and imitate pick machine circuit is connected with ring change-over circuit; Ring change-over circuit is connected, controls functional circuit and is connected with home appliance by winding displacement with telephone set by cable with audio decoding circuit.The utility model embodiment adopts telephone set remote control domestic electrical equipment equipment, has simplified the intelligent domestic system in wisdom building, has reduced home appliance and has controlled cost.

Description

Intelligent domestic system in wisdom building

Technical field

The utility model embodiment relates to microprocessor technology field, relates in particular to the intelligent domestic system in a kind of wisdom building.

Background technology

Along with social development and the raising of people's living standard, increasing home appliance has entered the common people's life, bring a lot of convenience and enjoy to everybody, home appliance utilizes advanced calculating and technology, network communications technology, comprehensive wiring technology, by the various subsystems relevant with life staying idle at home, combine, by networking comprehensive intelligent control and management, make people's life staying idle at home more comfortable, safe, efficient.

Equally, also adopt browser or server architecture for the tele-control system of home appliance, by utilizing Internet resources to realize remote control domestic electrical equipment equipment.

Adopt the control system more complicated of browser or server remote control domestic electrical equipment equipment, have the defect of high cost.

Utility model content

The utility model embodiment provides the intelligent domestic system in a kind of wisdom building, to overcome the control system complexity of available technology adopting browser or server remote controlling household equipment, the problem that cost is high.

The utility model embodiment provides the intelligent domestic system in a kind of wisdom building, comprising: device of controlling domestic electrical appliance and telephone set;

Wherein, described device of controlling domestic electrical appliance, comprising: microprocessor, ring change-over circuit, audio decoding circuit, control functional circuit and imitate pick machine circuit;

Described ring change-over circuit, described audio decoding circuit and described control functional circuit are connected with described microprocessor by serial port, and described imitate pick machine circuit is connected with described ring change-over circuit; Described ring change-over circuit and described audio decoding circuit by cable be connected with described telephone set, described control functional circuit is connected with described home appliance by winding displacement;

Described microprocessor, in the time that user dials described telephone set, receives the bell signal that described ring change-over circuit sends; Send off hook signal according to described bell signal to described imitate pick machine circuit, so that described imitate pick machine breadboardin off-hook; Receive the binary-coded decimal that described audio decoding circuit sends, and transmit control signal to described function control circuit according to described binary-coded decimal, so that described function control circuit is according to the unlatching of home appliance described in described control signal control or close;

Described ring change-over circuit, for in the time that user dials described telephone set, phone ringing is converted to described bell signal, and described bell signal is sent to described microprocessor, so that described microprocessor sends described off hook signal according to described bell signal to described imitate pick machine circuit;

Described imitate pick machine circuit, the described off hook signal sending for receiving described microprocessor, and imitate pick machine, so that described audio decoding circuit receives described subscriber dialing;

Described audio decoding circuit, for receiving described user's dialing, and according to the corresponding relation of described dialing and binary-coded decimal, described dialing is decoded as to binary-coded decimal, described binary-coded decimal is sent to microprocessor, so that described microprocessor transmits control signal to described function control circuit according to described binary-coded decimal;

Described function control circuit, the described control signal sending for receiving described microprocessor, and according to the unlatching of home appliance described in described control signal control or close.

Alternatively, described device of controlling domestic electrical appliance, also comprises: prompt tone amplifying circuit;

Described prompt tone amplifying circuit is connected with described microprocessor by serial port; Described prompt tone amplifying circuit is connected with telephone set by cable;

Described microprocessor, also for sending cue to described prompt tone amplifying circuit, so that described prompt tone amplifying circuit inputs to telephone set after described cue is amplified;

Described prompt tone amplifying circuit, the cue sending for receiving microprocessor, and input to telephone set after described cue is amplified, so that described user dials according to described cue.

Alternatively, described cue, comprising:

Password Input signal, password correct/error signal, selection home appliance signal, On/Off function select signal.

Preferably, described audio decoding circuit, comprising: bridge rectifier, coupling capacitance and balance resistance and decoding chip;

After described bridge rectifier, described coupling capacitance and the series connection of described balance resistance, connect the signal input pin of described decoding chip, the output of described decoding chip is connected with the serial port of described microprocessor, and described bridge rectifier is connected with described telephone set.

Preferably, described ring change-over circuit, comprising: photoelectrical coupler, resistance, electric capacity and diode;

Described photoelectrical coupler one end is connected with described microprocessor serial port, and the other end is connected with described telephone set by described cable after connecting by described resistance, described electric capacity and described diode.

Preferably, described imitate pick machine circuit, comprising: relay switch, diode, triode and resistance;

Described relay switch is connected with the serial port of described microprocessor after connecting with after described diode reverse parallel connection and with described triode and described resistance, 200 Ohmic resistances in described relay switch control access telephone loop.

Preferably, described prompt tone amplifying circuit, comprising: electric capacity, adjustable potentiometer, transformer and audio-frequency power amplifier;

The serial port of described microprocessor is connected with the input of described audio-frequency power amplifier after connecting by described electric capacity and described adjustable potentiometer, the output of described audio-frequency power amplifier connects described transformer, and the described transformer other end is connected with described telephone set.

Preferably, described function control circuit, comprising: triode, diode and relay switch;

Described relay switch is connected with the serial port of described microprocessor after connecting with after described diode reverse parallel connection and with described triode and described resistance, the closed or disconnection of one or one group home appliance current supply circuit of described relay switch control.

Preferably, described audio decoding circuit or described ring change-over circuit, also comprise: light-emitting diode;

Described light-emitting diode is connected with described microprocessor serial port with after described audio decoding circuit or the parallel connection of described ring change-over circuit; Described light-emitting diode is used to indicate audio signal reception or phone ringing receives.

Intelligent domestic system in the utility model embodiment wisdom building, phone ringing be converted to bell signal by ring change-over circuit in the time that user calls machine and send to microprocessor, microprocessor instruction simulation circuit for answering imitate pick machine, audio decoding circuit sends to microprocessor after subscriber dialing is decoded as to binary-coded decimal, microprocessor transmits control signal to controlling functional circuit according to described binary-coded decimal, the unlatching of described control function control home appliance or close, realize employing telephone set remote controlling household equipment, solve the control system complexity of available technology adopting browser or server remote controlling household equipment, the problem that cost is high.

Brief description of the drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of the intelligent domestic system in the utility model wisdom building;

Fig. 2 is another structural representation of the intelligent domestic system in the utility model wisdom building;

Fig. 3 is the program overall flow figure of the intelligent domestic system in the utility model wisdom building;

Fig. 4 is the utility model audio decoding circuit electrical schematic diagram;

Fig. 5 is the electrical schematic diagram of the utility model microprocessor work circuit;

Fig. 6 is the electrical schematic diagram of the utility model ring change-over circuit;

Fig. 7 is the electrical schematic diagram of the utility model imitate pick machine circuit;

Fig. 8 is the electrical schematic diagram of the utility model prompt tone amplifying circuit;

Fig. 9 is the electrical schematic diagram of the utility model control functional circuit.

Embodiment

For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Fig. 1 is the structural representation of the intelligent domestic system in the utility model wisdom building, and as shown in Figure 1, the intelligent domestic system 100 in the wisdom building of the present embodiment, can comprise: telephone set 101, device of controlling domestic electrical appliance 102, home appliance 103;

Wherein, described device of controlling domestic electrical appliance 102, comprising: microprocessor 1021, ring change-over circuit 1022, imitate pick machine circuit 1023, audio decoding circuit 1024 and function control circuit 1025;

Described ring change-over circuit 1022, described audio decoding circuit 1024 and described function control circuit 1025 are connected with described microprocessor 1021 by serial port, and described imitate pick machine circuit 1023 is connected with described ring change-over circuit 1022; Described ring change-over circuit 1022 and described audio decoding circuit 1024 by cable be connected with described telephone set 101, described function control circuit 1025 is connected with described home appliance 103 by winding displacement;

Described microprocessor 1021, in the time that user dials described telephone set, receives the bell signal that described ring change-over circuit sends; Send off hook signal according to described bell signal to described imitate pick machine circuit, so that described imitate pick machine breadboardin off-hook; Receive the binary-coded decimal that described audio decoding circuit sends, and transmit control signal to described function control circuit according to described binary-coded decimal, so that described function control circuit is according to the unlatching of home appliance described in described control signal control or close;

Described ring change-over circuit 1022, for in the time that user dials described telephone set, phone ringing is converted to described bell signal, and described bell signal is sent to described microprocessor, so that described microprocessor sends described off hook signal according to described bell signal to described imitate pick machine circuit;

Described imitate pick machine circuit 1023, the described off hook signal sending for receiving described microprocessor, and imitate pick machine, so that described audio decoding circuit receives described subscriber dialing;

Described audio decoding circuit 1024, for receiving described user's dialing, and according to the corresponding relation of described dialing and binary-coded decimal, described dialing is decoded as to binary-coded decimal, described binary-coded decimal is sent to microprocessor, so that described microprocessor transmits control signal to described function control circuit according to described binary-coded decimal;

Described function control circuit 1025, the described control signal sending for receiving described microprocessor, and according to the unlatching of home appliance described in described control signal control or close.

Specifically, when user calls, phone ringing is converted to bell signal by ring conversion phone, this bell signal is sent to microprocessor, microprocessor is to this bell signal counting, in the time that this bell signal is greater than default ringing number, microprocessor sends off hook signal to imitate pick machine circuit, imitate pick machine breadboardin off-hook, user is according to default push-button dialing, audio decoding circuit receives this dialing, and after being decoded as to binary-coded decimal, dialing sends to microprocessor, microprocessor sends the control signal corresponding with this binary-coded decimal according to this binary-coded decimal to function control circuit, this control signal is opened or closes for controlling corresponding home appliance.

Intelligent domestic system in the utility model embodiment wisdom building, phone ringing be converted to bell signal by ring change-over circuit in the time that user calls machine and send to microprocessor, microprocessor instruction simulation circuit for answering imitate pick machine, audio decoding circuit sends to microprocessor after receiving user's dialing and this dialing being decoded as to binary-coded decimal, microprocessor transmits control signal to function control circuit according to described binary-coded decimal, the unlatching of described control signal control home appliance or close, realize employing telephone set remote controlling household equipment, solve the control system complexity of available technology adopting browser or server remote controlling household equipment, the problem that cost is high.

Fig. 2 is another structural representation of the intelligent domestic system in the utility model wisdom building, as shown in Figure 2, on the basis of the intelligent domestic system 100 of the intelligent domestic system 110 in the wisdom building of the present embodiment in the wisdom building shown in Fig. 1, also comprise: prompt tone amplifying circuit 1026;

Described prompt tone amplifying circuit 1026 is connected with described microprocessor 1021 by serial port; Described prompt tone amplifying circuit 1026 is connected with telephone set 101 by cable;

Described microprocessor 1021, also for sending cue to described prompt tone amplifying circuit, so that described prompt tone amplifying circuit inputs to telephone set after described cue is amplified;

Described prompt tone amplifying circuit 1026, the cue sending for receiving microprocessor, and input to telephone set after described cue is amplified, so that described user dials according to described cue.

Specifically, when user calls, phone ringing is converted to bell signal by ring change-over circuit, and this bell signal is sent to microprocessor; Microprocessor is to this bell signal counting, and in the time that this bell signal is greater than/equals default ringing number, microprocessor sends off hook signal to imitate pick machine circuit; After imitate pick machine breadboardin off-hook, microprocessor sends prompt tone signal to prompt tone amplifying circuit, and this prompt tone signal is sent to telephone set after prompt tone amplifying circuit amplifies; User is according to this prompt tone dialing, and prompt tone can comprise: prompting is selected in Password Input prompting, the prompting of password correct/error, the prompting of selection home appliance, function control; Audio decoding circuit receives this dialing, and after being decoded as to binary-coded decimal, dialing sends to microprocessor, microprocessor sends the control signal corresponding with this binary-coded decimal according to this binary-coded decimal to function control circuit, and this control signal is opened or closes for controlling corresponding home appliance.

Fig. 3 is the program overall flow figure of the intelligent domestic system in the utility model wisdom building, as shown in Figure 3, first microprocessor carries out initialization, start counter if be judged as ring, in the time that ringing number is greater than/equals preset times, imitate pick machine, next start prompt tone, described prompt tone comprises: Password Input prompting, the prompting of password correct/error, if password is correct, point out home appliance to select prompting, control function prompt, operated prompting; If password mistake, points out on-hook.

Intelligent domestic system in the utility model embodiment wisdom building, phone ringing be converted to bell signal by ring change-over circuit in the time that user calls machine and send to microprocessor, microprocessor instruction simulation circuit for answering imitate pick machine, and send prompt tone signal to prompt tone amplifying circuit, after imitate pick machine breadboardin off-hook, prompt tone signal after amplifying is sent to telephone set, user dials according to described prompt tone, audio decoding circuit sends to microprocessor after subscriber dialing is decoded as to binary-coded decimal, microprocessor transmits control signal to function control circuit according to described binary-coded decimal, the unlatching of described control function control home appliance or close, realize employing telephone set remote controlling household equipment, prompting sound circuit in the present embodiment, Cipher Processing function is provided, only have the correct password of input could control household electrical appliances, thereby improve the safety and reliability of control system.

Adopt several specific embodiments below, the technical scheme of the each circuit shown in Fig. 2 is elaborated.

Fig. 4 is the utility model audio decoding circuit electrical schematic diagram, and as shown in Figure 4, the present embodiment audio decoding circuit, can comprise: bridge rectifier D1, coupling capacitance C12 and balance resistance R14, R15 and decoding chip U4;

After described bridge rectifier D1, described coupling capacitance C12 and described balance resistance R14 series connection, connect the signal input pin of described decoding chip U4, the output of described decoding chip U4 is connected with the serial port of described microprocessor 1021, and described bridge rectifier D1 is connected with described telephone set 101.C12 is the coupling capacitance of double-audio signal, and dtmf signal is linked into decoding chip, is chosen as 104 ceramic disc capacitors; R15 is input balance resistance, and size is 100K; Y2 is the work crystal oscillator of MT8870 chip, chooses 3.579MHZ; R16, for output balance resistance, chooses 100K; C13 chooses 104 ceramic disc capacitors; Light-emitting diode DS2 receives signal lamp as double-audio signal; R3 resistance is light-emitting diode current limliting.

As shown in Figure 5, the model of the microprocessor that the present embodiment adopts is AT89C51, the operating circuit of this microprocessor comprises clock circuit and reset circuit, and clock circuit adopts the most frequently used internal clocking mode, the shunt-resonant circuit forming with external crystal Y1 and electric capacity.Oscillating crystal can be selected between 12MHZ at 1.2MHZ.Capacitance is without strict demand, but electric capacity value has a little impact to stability, size, the oscillating circuit starting of oscillation speed of frequency of oscillation output, and C9, C10 can be at 20pF to values between 100pF, but 60pF during to 70pF oscillator have higher frequency stability.So in the present embodiment, oscillating crystal is selected 11.0592MHZ, capacitance selection 30pF.Reset circuit is to be realized by outside reset circuit.Adopt button S1 hand-reset, reset pin RST is used for suppressing noise by this schmitt trigger, at the S5P2 of each machine cycle, sampling should be carried out by reset circuit for the output level of this schmitt trigger, then just can obtain internal reset and operate needed signal, C11 is 10UF, and R10 is 10K.

Telephone set dialing is dual-tone multifrequency pulse signal, and this audio decoding circuit adopts the decoding of MT8870 chip.The line of MT8870 as shown in Figure 4, its IN+, IN-pin receive the dual-tone multifrequency pulse signal from telephone set, the first dialing tone filter through its chip internal of this touch-tone signal, filtering dialing tone signal, then after premenstrual storing greatly, send into dual-audio filter, double-audio signal is pressed high, bass signal separately, again through height group filter, range detector is sent into output decoding circuit, after digital operation, export corresponding 8421 yards at its data output end (11～14 pin).Data output end Q4～Q1 of MT8870 links the P1.0～P1.3 of the P1 mouth of AT89C51, and AT89C51 is through 4 codes of P1 mouth identification.Wherein, telephone key-press decoding corresponding to MT8870 chip (Q4～Q1), A, B, these 4 buttons of C, D are often taken as R/P, REDIAL, HOLD, the functions such as HANDSFREE are used.Note, it needs to be noted, for " 0 " number, 8421 yards of MT8870 output is not " 0000 ", but " 1010 "; In addition, " * ", " # " font size code, 8421 yards of MT8870 output are respectively " 1011 " and " 1100 ".DTMF technology is that a kind of different tones that utilize sound frequency transmit dialing signal to replace the method for dial-in direct pulse.DTMF is made up of low frequency group (697Hz～941Hz) and high frequency group (1209Hz～1633Hz) two class frequency signal stacks.If v (t) is dtmf signal, vl (t) and vh (t) represent respectively two signals that are selected from low frequency group and high frequency group, meet and be related to v (t)=vl (t)+vh (t)=Asin ω lt+Bsin ω ht between them.

In low frequency group and high frequency group, all only have 4 independently tones, the selection of these tones is uncorrelated according to the harmonic wave between them, the affect minimum of their intermodulation signal on main signaling.Dtmf signal has 16 (24) and plants combination, and wherein 10 kinds of combinations represent respectively numeral 0 to 9, and all the other 6 kinds combinations (#, *, A, B, C, D) are used as special signaling.CCITT and China's national standard have all specified the corresponding relation of telephone keypad button and dtmf signal, as shown in table 1.

Table 1

Telephone key-press	1209Hz	1336Hz	1477Hz	1633Hz
					697Hz	1	2	3	A
770Hz	4	5	6	B
					852Hz	7	8	9	C
941Hz	*	0	#	D

On the output code (Q4, Q3, Q2, Q1) of MT8870 and telephone keypad, the corresponding relation of button is as shown in table 2:

Table 2

Button	Q4Q3Q2Q	Button	Q4Q3Q2Q	Button	Q4Q3Q2Q	Button	Q4Q3Q2Q
								1	0001	5	0101	9	1101	A	1101
2	0010	6	0110	0	1010	B	1110
								3	0011	7	0111	X	1011	C	1111
4	0100	8	1000	#	1100	D	0000

The present embodiment, audio decoding circuit is by bridge rectifier, coupling capacitance and the rear signal input pin that connects decoding chip of balance resistance series connection, the output of described decoding chip is connected with the serial port of microprocessor, bridge rectifier is connected with telephone set, realize subscriber dialing is decoded as to binary-coded decimal, thereby microprocessor can be transmitted control signal to function control circuit according to user's dialing, complete corresponding home appliance and open or close.

Fig. 6 is the electrical schematic diagram of the utility model ring change-over circuit, and as shown in Figure 6, the ring change-over circuit of the present embodiment, can comprise: photoelectrical coupler U1, resistance R 1, capacitor C 1 and diode D2;

Described photoelectrical coupler U1 one end is connected with described microprocessor 1021 serial ports, and the other end is connected with described telephone set 101 by described cable after connecting by described resistance R 1, described capacitor C 1 and described diode D2.

Specifically, by outer 5V voltage and the current-limiting resistance of connecting after the output of photoelectricity coupling, when bell signal comes then, P1.1 mouth to AT89C51 sends low and high level signal, by microprocessor query counts, in the present embodiment, set unmanned off-hook after ringing number exceedes five times, just send off hook signal, instruction simulation circuit for answering imitate pick machine by microprocessor to imitate pick machine circuit.

Wherein, C1 is capacitance, can be every straight, logical low frequency signal.Because ringing signal voltage is up to more than 90 volts, choose the electrochemical capacitor that the withstand voltage model of 100V is 10UF/100V; D2 is voltage stabilizing didoe, chooses the voltage stabilizing didoe of 33V; R1 is the current-limiting resistance of optocoupler, gets 4.7K; U1 chooses optocoupler 4n25; R2 chooses connecting resistance on 10K work, and DS1 is the signal lamp of light-emitting diode as bell signal, and R18 chooses the current-limiting resistance of 1K as light-emitting diode.

When telephone set is during in called state not, the voltage on telephone line provides the direct voltage of about 48V for telephone exchange.When telephone set is during in called state, the ringing signal that shakes sending due to telephone exchange is the sine wave of 25 ± 3 volts, and humorous bell distortion is not more than 10%, and therefore, now the voltage effective value on telephone line is 90 ± 15V.Telephone ring signal inputs to 1 mouthful of the input of optocoupler 4n25 every straight, the voltage stabilizing of D2 voltage stabilizing didoe, R1 current-limiting resistance by capacitor C 1; C1, R1, D2 form the translation circuit of bell signal jointly; the signal of phone ringing stream is transformed into the signal that triggers photoelectrical coupler, photoelectrical coupler is shielded.Isolation mutually between optical coupler input and output, electric signal transmission has the features such as one-way, thereby has good electrical isolation capabilities and antijamming capability.Belong to again the low resistance element of current mode work due to the input of optical coupler, thereby there is very strong common mode inhibition capacity.So it can greatly improve signal to noise ratio as terminal isolated component in long line transmission information.

The present embodiment, ring change-over circuit is connected with microprocessor serial port by photoelectrical coupler one end, the other end is connected with telephone set by cable after connecting by resistance, electric capacity and diode, realize phone ringing has been converted to square-wave signal, microprocessor according to described square-wave signal to Ring-down count, and send off hook signal to imitate pick machine circuit in the time that ringing number exceedes preset times, complete imitate pick machine.

Fig. 7 is the electrical schematic diagram of the utility model imitate pick machine circuit, and as shown in Figure 7, the imitate pick machine circuit of the present embodiment, can comprise: relay switch K1, diode D3, triode Q2 and resistance R 9;

Described relay switch K1 is connected with the serial port of described microprocessor 1021 after connecting with after described diode D3 reverse parallel connection and with described triode Q2 and described resistance R 9, and described relay switch K1 controls the 200 Ohmic resistance R6 in access telephone 101 loops.

Wherein, R9 is transistor base resistance, chooses size for 1K; It is 9012 that Q2 chooses model, positive-negative-positive triode; D3 diode plays relay reverse protection, chooses 4001; K1 is relay control switch, chooses HK4001F DC5V; R6 is 200 Ω resistance of access line loop

Specifically, specify according to relative national standards: no matter any telephone set, the D.C. resistance of off hook state is answered≤300 Ω, under hook state, its leakage current≤5uA.The switch of the CE utmost point control relay of the dynamo-electric route microprocessor delivery outlet turn-on transistor of simulation dislodging, by 200 Ω resistance access telephone wire loops.Pluck on-hook signal and exported by microprocessor P1.5 mouth, thereby to be low level output be switched on the triode CE utmost point to base stage opens relay K 1, use 200 Ω resistance access telephone wire loops when P1.5 mouth.Access after 200 Ω resistance, make loop current become large, control circuit switch sends imitate pick machine signal, and switch responds off hook signal completes telephone line and connects, and completes imitate pick machine process.

The present embodiment, imitate pick machine circuit is connected with the serial port of microprocessor after connecting with triode and resistance with after diode reverse parallel connection by relay switch, thus 200 Ohmic resistances in relay switch control access telephone loop have been realized imitate pick machine.

Fig. 8 is the electrical schematic diagram of the utility model prompt tone amplifying circuit, and as shown in Figure 8, the prompt tone amplifying circuit of the present embodiment, can comprise: capacitor C 3, adjustable potentiometer R5, transformer T1 and audio-frequency power amplifier U2;

The serial port of described microprocessor 1021 is connected with the input of described audio-frequency power amplifier U2 after connecting by described capacitor C 3 and described adjustable potentiometer R5, the output of described audio-frequency power amplifier U2 connects described transformer T1, and the described transformer T1 other end is connected with described telephone set 101.

Wherein, audio-frequency power amplifier is LM386; C3 chooses 10UF/16V electrochemical capacitor; R5 chooses 10K adjustable potentiometer, for regulating sound size; C7 chooses 10UF electrochemical capacitor; R7 chooses 1K resistance; Output C6 chooses 47.3nF ceramic disc capacitor; R8 gets 10 Ω resistance; C5 chooses 250UF/16V electrochemical capacitor, and amplified signal is coupled on transformer; T1 chooses the audio frequency special output transformer of 600:600.

In the present embodiment prompt tone the selected 500HZ of audible frequency.Signal tone, from the P3.5 mouth output of AT89C51, outputs on telephone wire after audio frequency amplification circuit LM386.

Mainly be divided into 3 kinds of prompt tones:

(1) one sound is long in a low voice: represent imitate pick machine success, please input password; All operations completes and success, finishes call;

(2) one sound are in a low voice: represent that prompting obtains password key signal;

(3) two sound basses: represent password by or selected electrical equipment success;

(4) one short one is long: represent password mistake, system is by on-hook.

The connection of audio frequency amplification circuit LM386 is fairly simple, and the use of this device is the connected mode that LM386 gain amplifier is 50dB.Utilize LM386 low pressure audio-frequency power amplifier, LM386 is the power amplifier designing for low-voltage customer, internal gain is 20 times, in the time of 1 pin and 8 pin connecting resistances and electric capacity, can make to be increased to 200 times, after LM386 amplifies, it is upper that signal is coupled to transformer T1 by coupling capacitance C5, and T1 is that audio frequency is exported special audio coupling transformer.

The prompt tone amplifying circuit of the present embodiment, the serial port of microprocessor is connected with the input of audio-frequency power amplifier after connecting by electric capacity and adjustable potentiometer, the output connection transformer of audio-frequency power amplifier, the transformer other end is connected with telephone set, has realized the prompt tone of microprocessor output is amplified to rear input telephone set.

Fig. 9 is the electrical schematic diagram of the utility model function control circuit, and as shown in Figure 9, the function control circuit of the present embodiment, can comprise: triode Q3, diode D5 and relay switch K2;

Described relay switch K2 is connected with the serial port of described microprocessor 1021 after connecting with after described diode D5 reverse parallel connection and with described triode Q3 and described resistance R 17, and described relay switch K2 controls the closed of one or one group home appliance 103 current supply circuits or disconnects.

Wherein, the resistance that R17 is 1K; Q3 chooses PNP triode 9012; D5 is the reverse protection diode of relay, chooses model 4001; Relay K 2 is selected HK4001F DC5V; J1, J2 choose two ends forceful electric power interface.

The function control circuit of the present embodiment, by the closed or disconnection of one or one group home appliance of relay switch control.

One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.

Claims (9)

1. the intelligent domestic system in wisdom building, is characterized in that, comprising: home appliance, device of controlling domestic electrical appliance and telephone set;

Wherein, described device of controlling domestic electrical appliance, comprising: microprocessor, ring change-over circuit, audio decoding circuit, function control circuit and imitate pick machine circuit;

Described ring change-over circuit, described audio decoding circuit and described function control circuit are connected with described microprocessor by serial port, and described imitate pick machine circuit is connected with described ring change-over circuit; Described ring change-over circuit and described audio decoding circuit by cable be connected with described telephone set, described function control circuit is connected with described home appliance by winding displacement;

Described microprocessor, in the time that user dials described telephone set, receives the bell signal that described ring change-over circuit sends; Send off hook signal according to described bell signal to described imitate pick machine circuit, so that described imitate pick machine breadboardin off-hook; Receive the binary-coded decimal that described audio decoding circuit sends, and transmit control signal to described function control circuit according to described binary-coded decimal, so that described function control circuit is according to the unlatching of home appliance described in described control signal control or close;

Described ring change-over circuit, for in the time that user dials described telephone set, phone ringing is converted to described bell signal, and described bell signal is sent to described microprocessor, so that described microprocessor sends described off hook signal according to described bell signal to described imitate pick machine circuit;

Described imitate pick machine circuit, the described off hook signal sending for receiving described microprocessor, and imitate pick machine, so that described audio decoding circuit receives described subscriber dialing;

Described audio decoding circuit, for receiving described user's dialing, and according to the corresponding relation of described dialing and binary-coded decimal, described dialing is decoded as to binary-coded decimal, described binary-coded decimal is sent to microprocessor, so that described microprocessor transmits control signal to described function control circuit according to described binary-coded decimal;

Described function control circuit, the described control signal sending for receiving described microprocessor, and according to the unlatching of home appliance described in described control signal control or close.

2. system according to claim 1, is characterized in that, described device of controlling domestic electrical appliance, also comprises: prompt tone amplifying circuit;

Described prompt tone amplifying circuit is connected with described microprocessor by serial port; Described prompt tone amplifying circuit is connected with telephone set by cable;

Described microprocessor, also for sending cue to described prompt tone amplifying circuit, so that described prompt tone amplifying circuit inputs to telephone set after described cue is amplified;

Described prompt tone amplifying circuit, the cue sending for receiving microprocessor, and input to telephone set after described cue is amplified, so that described user dials according to described cue.

3. according to described system claimed in claim 2, it is characterized in that, described cue, comprising:

Password Input signal, password correct/error signal, selection home appliance signal, On/Off function select signal.

4. according to the system described in claim 1-3 any one, it is characterized in that, described audio decoding circuit, comprising: bridge rectifier, coupling capacitance and balance resistance and decoding chip;

After described bridge rectifier, described coupling capacitance and the series connection of described balance resistance, connect the signal input pin of described decoding chip, the output of described decoding chip is connected with the serial port of described microprocessor, and described bridge rectifier is connected with described telephone set.

5. according to the system described in claim 1-3 any one, it is characterized in that, described ring change-over circuit, comprising: photoelectrical coupler, resistance, electric capacity and diode;

Described photoelectrical coupler one end is connected with described microprocessor serial port, and the other end is connected with described telephone set by described cable after connecting by described resistance, described electric capacity and described diode.

6. according to the system described in claim 1-3 any one, it is characterized in that, described imitate pick machine circuit, comprising: relay switch, diode, triode and resistance;

Described relay switch is connected with the serial port of described microprocessor after connecting with after described diode reverse parallel connection and with described triode and described resistance, 200 Ohmic resistances in described relay switch control access telephone loop.

7. according to the system described in claim 2 or 3, it is characterized in that, described prompt tone amplifying circuit, comprising: electric capacity, adjustable potentiometer, transformer and audio-frequency power amplifier;

The serial port of described microprocessor is connected with the input of described audio-frequency power amplifier after connecting by described electric capacity and described adjustable potentiometer, the output of described audio-frequency power amplifier connects described transformer, and the described transformer other end is connected with described telephone set.

8. according to the system described in claim 1-3 any one, it is characterized in that, described function control circuit, comprising: triode, diode and relay switch;

Described relay switch is connected with the serial port of described microprocessor after connecting with after described diode reverse parallel connection and with described triode and described resistance, the closed or disconnection of one or one group home appliance current supply circuit of described relay switch control.

9. according to the system described in claim 1-3 any one, it is characterized in that, described audio decoding circuit or described ring change-over circuit, also comprise: light-emitting diode;

Described light-emitting diode is connected with described microprocessor serial port with after described audio decoding circuit or the parallel connection of described ring change-over circuit; Described light-emitting diode is used to indicate audio signal reception or phone ringing receives.