CN2263424Y

CN2263424Y - Domestic electric appliances on-off device controlled by telephone

Info

Publication number: CN2263424Y
Application number: CN 96210083
Authority: CN
Inventors: 刘兴田
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-26
Filing date: 1996-04-26
Publication date: 1997-09-24
Anticipated expiration: 2006-04-26

Abstract

The utility model relates to a domestic electric appliance on-off device controlled by a telephone, which comprises a ringing current timing circuit for ringing a telephone, an off-hook simulating circuit, a double audio decoding circuit, a receiving and amplifying circuit, a retaining circuit, an automatic recovery circuit, a gate circuit, a drive circuit and a power supply circuit. The utility model is characterized in that the off-hook simulating circuit is connected with an output end of an observation circuit (A); a prompting tone circuit (B) is connected with an input end of the observation circuit; a 3 pin of an NAND gate output end of the double audio decoding circuit is connected with an input end of a delay circuit (C). The utility model can utilize the telephone to carry out multifunctional remote control, and can arbitrarily adjust and select ringing frequency. The utility model has the advantages of simple circuits, low cost and complete and reliable functions.

Description

Phone control household electrical appliances break-make device

The utility model relates to the household electrical appliance control technology, the household electrical appliances of phone control specifically break-make device.

Along with improving constantly of people's living standard, household electrical appliance are come into family more and more.And the general direct people's hand control of the control of household electrical appliances, when staying out, with regard to uncontrollable household electrical appliance as if the people.Be head it off, the patent No. is that 92218360 Chinese utility model patent discloses a kind of " practical telephone remote control ", and it is made up of the ring sound counted bell signal detection numeration, rectifier bridge heap, photoelectricity coupling, register etc. and controls receiving circuit.Its control household electrical appliances quantity is few, and not anti-malicious call function, allows malicious call cause the damage of household electrical appliances easily.

The purpose of this utility model provides and a kind ofly can overcome above-mentioned deficiency, and control household electrical appliances quantity is more, and function is complete, safe and reliable phone control household electrical appliances break-make device.

The utility model is achieved in that this phone control household electrical appliances break-make device comprises the ringing-current timing circuit of phone ringing, the simulation circuit for answering, double-tone is decoding circuit frequently, receive amplifying circuit, holding circuit, automatic restoring circuit, gating circuit, drive circuit and power circuit, it is characterized in that the end of simulation circuit for answering C11 and the output capacitance C4 of P1-2 normally opened contact and monitoring circuit (in the A frame of broken lines) join, the output capacitor C7 of prompting sound circuit (in the B frame of broken lines) connects with the input C6 of monitoring circuit, and NAND gate CD4001 output 3 pin of double-tone frequency decoding circuit connect 1 pin of delay circuit (in the C frame of broken lines) input 74LS14.

Capacitor C 4 connects with 1 pin of parallel resistor R8 and integrated package LM324 in the monitoring circuit, 2 pin of the other end of R8 and LM324 connect with the R9 that connects, C5, the termination of the end of R10, R11 and the collector electrode of triode Q1 and C5, the other end of R11 and the base stage of Q1 connect with C6, the other end of C6 connects with transmitter in the collective and R12, the other end of R12 connects with the other end of R10 and connects with 12V voltage, the other end ground connection of transmitter in the collective, Q1 grounded emitter.

The end of R14, R15, R16, R17 is in parallel and connect with normally opened contact P2-2 in the prompting sound circuit, the other end of R15 and the base stage of Q3 and C8 hear and connect, the other end of R14 connects with the other end of Q2 collector electrode and C8, the other end of R16 connects with the base stage of C9 and Q2, the other end of R17 connects with the collector electrode of C9 and Q3, the Q2 emitter connects with the end of Q3 and C10 and ground connection, and the two ends of R13 connect with P2-2 and 12V voltage respectively.

1 pin of integrated package 74LS14 connects with 3 pin of CD4001 in the delay circuit, 2 pin of 74LS14 connect with the end of R23, the D14 of parallel connection, the other end of R23 and D14 connects with the end of C17 and 3 pin of 74LS14,4 pin of 74LS14 connect with 6 pin of the 5G1413 of drive circuit, the other end ground connection of C17.

Below in conjunction with accompanying drawing the utility model is described in further detail, but is not limited to shown in the accompanying drawing.

Fig. 1 is circuit theory diagrams of the present utility model

Fig. 2 is that installation of the present utility model connects schematic diagram

As shown in Figure 1, the utility model is by the ringing-current timing circuit (D3-D6 of phone ringing, D1, R1, R5, C1, D2, D12), simulation circuit for answering (R3, D7-D10), receive amplifying circuit (C11, C12, R18, R19, R20, C13, LM324), double-tone is decoding circuit (1-6 of LM567 and diagram peripheral cell) frequently, holding circuit (R6, D11, D13), automatic restoring circuit (R2, P1-4, R7, C2), gating circuit (TWH8751, P1), drive circuit (5G1413, P2, P3, P4) and power circuit (C18, C19, C20, D15-D18, T1 and 7805 and 7812), be connected with monitoring circuit (in the A frame of broken lines) with the simulation circuit for answering, the output capacitance C7 of prompting sound circuit (in the B frame of broken lines) connects with the input C6 of monitoring circuit, and NAND gate CD4001 output 3 pin of double-tone frequency decoding circuit connect first pin of the 74LS14 of delay circuit (in the C frame of broken lines).Wherein:

C4 connects with the R8 of parallel connection and 1 pin of LM324 in the monitoring circuit, 2 pin of the other end of R8 and LM324 connect with the R9 that connects, C5, the termination of the end of R10, R11 and the collector electrode of Q1 and C5, the other end of R11 and the base stage of Q1 connect with C6, the other end of C6 connects with transmitter in the collective and R12, the other end of R12 connects with the other end of R10 and connects with 12V voltage, the other end ground connection of transmitter in the collective;

The end of R14, R15, R16, R17 is in parallel and connect with P2-2 in the prompting sound circuit, the other end of R15 and the base stage of Q3 and C8 hear and connect, the other end of R14 connects with the other end of Q2 collector electrode and C8, the other end of R16 connects with the base stage of C9 and Q2, the other end of R17 connects with the collector electrode of C9 and Q3, the Q2 emitter connects with the end of Q3 and C10 and ground connection, and the two ends of R13 connect with P2-2 and 12V voltage respectively.

1 pin of 74LS14 connects with 3 pin of CD4001 in the delay circuit, 2 pin of 74LS14 connect with the end of R23, the D14 of parallel connection, the other end of R23 and D14 connects with the end of C17 and 3 pin of 74LS14, and 4 pin of 74LS14 connect with 6 pin of the 5G1413 of drive circuit, the other end ground connection of C17.

As shown in Figure 2, D, E are outside line, the 1st, and the terminal box of telephone set, the 2nd, telephone set, the 3rd, household electrical appliances break-make device of the present utility model, 4 to be four kinds be controlled household electrical appliance, the 5th, attaching plug.

When you after Home Telephone is put through with the dual tone phone machine in the other places, ringing voltage about 120 volts is held input from outside line A, B, and behind the bridge rectifier of ringing-current receiving circuit 1, D1 is breakdown, ringing-current charges to C1 through R1, and timing length is by R1, the decision of C1 numerical values recited.The last voltage of C1 raises gradually, and D2 punctures the most at last, and when making 8751 the 1st pin high level of gating circuit, 4 pin are the work of low level P1 relay, and P1-2 gives connection to external call, and it is high level that the off-hook direct voltage is kept 1 pin.(P1-1, P1-2 contact are connected on this device in the outside line, and R3 and rectifier bridge constitute the simulation circuit for answering of this device.) at this moment you can't hear ring-back tone, telephone set in then available your hand sends a password key signal, the amplifier circuit that this signal is formed through LM324, LM567 one, the decoding circuit of two compositions, 74LS14 and R23, C17, the delay circuit that D14 forms, the drive circuit that 5G1413 forms makes the work of P2 relay, the P2-1 contact is transferred to receiving circuit with outside line, the P2-2 changeover contact makes Q2, the multivibrator work that Q3 forms, send prompt tone to main dialing telephone, after hearing, owner then can transmit control signal, this signal is through reception amplifier, the normally opened contact of P2-1 is to decoding circuit LM567 the 3rd, the circuit of four compositions drives the relay P3 work that makes through 5G1413.The P3-1 contact makes the P3 self-insurance, and P3-2 makes corresponding loaded work piece., then control the electric current of four kinds of household electrical appliances respectively and connect by 1,2,3,4 number button as respectively.By 5,6,7,8 number button, the power supply of then controlling above-mentioned four kinds of household electrical appliances respectively disconnects respectively.The LM567 of decoding circuit third and fourth, the peripheral cell of five, six integrated packages is identical with first peripheral cell, just numerical value is in little difference.

The P1-4 contact is connected the delay circuit that R2, C2 form, and in delay time, the caller phone machine can be by the highly sensitive transmitter of monitoring circuit, through the amplifying circuit of triode Q1 and LM324 composition, sound in the monitor room.Power supply charges to C2 by R2, and C2 powers on and presses when being raised to certain value, 8751 shutoffs, and delay time finishes, and the P1 relay discharges, and the caller phone machine is listened " busy tone ", and machine is put in caller, and it is normal that outside line recovers, and the Home Telephone machine is in wait state.

Through certain hour, when owner will turn-off the power supply of some household electrical appliance, call out logical Home Telephone machine after, after can't hear ring-back tone, send out the password number button earlier, hear " ticking " sound after, then send the number button that you need power cutoff.As dial 5, after this device is received signal, make the work of P4 relay through decoding circuit, the drive circuit of five, six compositions of amplifier circuit, LM567, the P4-1 back contact disconnects the self-insurance of P3 relay, P3 is discharged, and the P3-2 contact disconnects, and the load outage is quit work.

By transformer, current rectifying and wave filtering circuit, the power circuit that 7812 and 7805 integrated voltage stabilizers are formed.Multivibrator by Q2, Q3 form provides working power by C4, constitutes " ticking " sound generator.

The utility model can utilize phone to carry out multifunction remote-control, it is had no effect to the function of use of Home Telephone machine, owner can put through home phone number in the far place of leaving home, just can be to the electric light of family, electric cooker, television set, broadcast receivers etc. carry out remote control, before returning home, can open the heating installation or the air-conditioning equipment of family in advance, can also monitor the sound sound of family, judge to have or not other people to invade.This device can be adjusted selection arbitrarily to the number of times of ring, and the simple cost of circuit is low, and function is reliable fully.

Claims

1, a kind of phone control household electrical appliances break-make device, the ringing-current timing circuit that comprises phone ringing, the simulation circuit for answering, double-tone is decoding circuit frequently, receive amplifying circuit, holding circuit, automatic restoring circuit, gating circuit, drive circuit and power circuit, it is characterized in that the end of simulation circuit for answering C11 and the output capacitance C4 of P1-2 normally opened contact and monitoring circuit (A) join, the output capacitor C7 of prompting sound circuit (B) connects with the input C6 of monitoring circuit, and NAND gate CD4001 output 3 pin of double-tone frequency decoding circuit connect 1 pin of delay circuit (C) input 74LS14.

2, household electrical appliances break-make device according to claim 1, it is characterized in that capacitor C 4 connects with 1 pin of parallel resistor R8 and integrated package LM324 in the monitoring circuit, 2 pin of the other end of R8 and LM324 connect with the R9 that connects, C5, the termination of the end of R10, R11 and the collector electrode of triode Q1 and C5, the other end of R11 and the base stage of Q1 connect with C6, the other end of C6 connects with transmitter in the collective and R12, the other end of R12 connects with the other end of R10 and connects with 12V voltage, the other end of transmitter in collective ground connection, the Q1 grounded emitter.

3, household electrical appliances break-make device according to claim 1, it is characterized in that the end of R14 in the prompting sound circuit, R15, R16, R17 is in parallel and connect with normally opened contact P2-2, the other end of R15 connects with base stage and the C8 of triode Q3, the other end of R14 connects with the other end of Q2 collector electrode and C8, the other end of R16 connects with the base stage of C9 and Q2, the other end of R17 connects with the collector electrode of C9 and Q3, the Q2 emitter connects with the end of Q3 and C10 and ground connection, and the two ends of R13 connect with P2-2 and voltage 12V respectively.

4, household electrical appliances break-make device according to claim 1,1 pin that it is characterized in that integrated package 74LS14 in the delay circuit connects with 3 pin of CD4001,2 pin of 74LS14 connect with the end of R23, the D14 of parallel connection, the other end of R23 and D14 connects with the end of C17 and 3 pin of 74LS14,4 pin of 74LS14 connect with 6 pin of the 5G1413 of drive circuit, the other end ground connection of C17.