CN2457667Y

CN2457667Y - Network household appliance controller

Info

Publication number: CN2457667Y
Application number: CN 00248732
Authority: CN
Inventors: 于俊庆; 杜光林; 张金家
Original assignee: Haier Group Corp; Qingdao Refrigeration Technology Institute
Current assignee: Haier Group Corp; Qingdao Refrigeration Technology Institute
Priority date: 2000-09-22
Filing date: 2000-09-22
Publication date: 2001-10-31
Anticipated expiration: 2010-09-22

Abstract

The utility model relates to a device for controlling network household appliances. The utility model is characterized in that the utility model is composed of a plurality of center microprocessors of a control program fixed in the inner part, a modem connected with the a plurality of center microprocessors, a memory, a level shift circuit, a voice circuit, a double-frequency demoding circuit, a power-line communication module, an imitating switch, and a corresponding power supply. The utility model can also be connected with the network household appliances by a power-line communication module and controls the operation. The utility model is characterized in that the utility model achieves the purpose that a plurality of network household appliances are controlled remotely by a telephone, the information of household appliances are transmitted and controlled at home or by a remote computer, the self-alarming of failure, etc. The utility model has the advantages of flexible operation, convenient operation, reliable operation, and low cost.

Description

Network domestic electric appliances controller

The utility model relates to the central controlled network domestic electric appliances controller of networking of many network home appliances.

Along with household electrical appliances such as refrigerator, washing machine upgrade to network home appliance, to there be many network home appliances to arise at the historic moment in the family, how to realize networking centralized control, and realize better comprising that Long-distance Control, the online network functions of feedback and function line upgrading etc. automatically of fault just become has answered problem that treatment solves many network home appliance products.

Purpose of the present invention just provides a kind of network domestic electric appliances controller that many network home appliance products are carried out centralized control or use.

The utility model reaches the storer that cooperates with it by programme controlled central microprocessor, and modulator-demodular unit and level shifting circuit, sound circuit, double-tone decoding circuit are frequently formed with power line communication module and analog switch.It contains with housing M outward or makes the modular structure form so that patch and protect inner structure

Describe basic structure of the present utility model and principle in detail below in conjunction with accompanying drawing:

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model;

Fig. 3 is a connection layout outside the housing of the present utility model plane;

A kind of network domestic electric appliances controller, it is characterized in that it is by the central microprocessor 6 that solidifies a plurality of control programs within it and the modulator-demodular unit 2 that is attached thereto, level shifting circuit 7 that storer 8 has the R232 interface and sound circuit 9 double-tones decoding circuit 5 frequently, power line communication module 4 is formed with analog switch 10 and corresponding power supply 11, and can be connected with network home appliance and control its work via power line communication module 4.

Central microprocessor 6 as 8 single chip computer AT 89C52 of the utility model core is that a program that is solidificated in inside comprises following program, the program of control off-hook when phone is squeezed into, the sound circuit 9 that control speech chip 25120 is formed is play the program of voice, the program that the embedded modem 2 that control is mainly formed with integrated circuit RC224ATL carries out communication, the program of identification telephone key-press, button during with remote telephone changes into the program of the order of control household electrical appliances, reception is from the program of computer commands in remote computer or the family, the order that receives is sent to the program of power line communication module 4, reception is from the data of household electrical appliances and data are sent to the program of computing machine in remote computer or the family, initiatively dial in to the after sale service center and report program of tame electric fault etc., network home appliance is registered to accreditation process of the present utility model etc., and its peripheral circuit is by capacitor C 1, C2, C3, resistance R 1, diode D1, crystal oscillator XTAL1, exclusion TP1, TP2 forms.

Speech chip 25120 is that a slice can be recorded the chip that can put 120 seconds voice, its

3,4,5,6,7,8,9,10 links to each other respectively with the pin two 8,27,26,25,24,23,22,21,20 of single chip computer AT 89C52,24 pin and 23 pin connect 17 and 16 pin of AT89C52 respectively, by the broadcast of Single-chip Controlling voice with stop, the voice that play out are exported by 14 and 5 pin, are coupled on the telephone wire by capacitor C 36 and C37, resistance R 28 and R29.Its peripheral circuit is by capacitor C 14, C15, and C16, C27, C36, C37 and resistance R 2, R14, R15, R128, R29 forms.

Integrated circuit MT8870 is an a pair of audio frequency mirror decoding circuit 5, its function is that the keypad tone that the double frequency phone is pressed is changed into the binary-coded decimal that single-chip microcomputer can be discerned, its pin one 0,11,12,13,14,15 links to each other with 4,6,37,38,39,13 of single chip computer AT 89C52 respectively, and by 11,12,13,14, pin outputs to single-chip microcomputer, single-chip microcomputer just can be discerned the double-audio signal of input.Its peripheral circuit has: C18, and C24, C25, R7, R8, R9, R10, R12, R13, and crystal oscillator XTAL2 forms.

Modulator-demodular unit 2 is made up of integrated circuit RC224ATL and peripheral circuit thereof, it can be modulated into audio analog signals to digital signal and send on the telephone wire, also can be demodulated to digital signal to simulating signal, be the data transmission channel at the utility model and remote computer or after sale service center.Its pin one 3 and 19 links to each other with 10 pin through 9 of analog switches 10 and single chip computer AT 89C52, and it just connects the single chip computer AT 89C52 in remote computer and the network home appliance controller like this, makes remote computer and the utility model can pass data mutually.Its peripheral components is by capacitor C 20, C21, and C22, C23, C29, C30, C32, C33, resistance R 22, R23, R24 and crystal oscillator XTAL3 form.

Modulator-demodular unit power supply 3, is just powered in the time of carrying out telecommunication or remote telephone to its power supply at ordinary times, and the power supply of the integrated circuit RC224ATL in the emitter of triode V1 and the modulator-demodular unit 2 is imported 53 pin and linked to each other.This part circuit is by triode V1, V2, and resistance R 3, R4, R25, capacitor C 31 is formed, and controlled by the P1.4 of single-chip microcomputer.Open triode V1 during the P1.4 high level, V2, power supply 11 just can be added on the integrated circuit RC224ATL of modulator-demodular unit 2 by V1, V2 like this.

Integrated circuit 93C66 is an eeprom memory 8, can store 1024 byte datas, is used for storing being registered to family of the present utility model electrical information.Its pin one, 2,3,4 links to each other with single-

chip microcomputer pin

6,2,3,32 respectively, carries out writing and reading of data under the control of single-chip microcomputer.

Telephony interface part is by socket J1, J2, and capacitor C 19, C26, C28, C34, C35 resistance R 11, R18, R19, R20, R26, diode D2, stabilivolt D8-D11, transformer T1, relay K 1 is formed.Be local call telephone line and interface circuit of the present utility model.

The level shifting circuit 7 that is made of integrated circuit MAX232 also has a RS232 socket, and Transistor-Transistor Logic level and RS232 level are changed mutually.Peripheral components has: capacitor C 4, C5, C6, C7.

Integrated circuit CD4052 4 the tunnel 2 selects 1 analog switch 10, is dice machine serial port change-over circuit, respectively its serial port is received under 7 and 8 foot control systems of single-chip microcomputer in modulator-demodular unit 2, power line communication module 4 and the family on the computing machine.

ATMEL series power line communication module 4 can send to data on the line of electric force and from line of electric force and receive data, finishes the transmission of data on line of electric force together with the power line communication module on the network home appliance 12.Peripheral components: C38, T2, L1.

Consider the protection of the structure of inside and the convenience that externally patches, can will contain with the shell M of rectangular parallelepiped outside the said structure or make the modular structure form.

Computer control household electrical appliances ultimate principle in the family:

The serial port of computing machine is linked up with special-purpose serial interface cable and RS232 interface of the present utility model, after control command is sent from the serial port of computing machine, pass to RS232 interface of the present utility model by private cable, integrated circuit MA232 by level shifting circuit 7 carries out, deliver to single chip computer AT 89C52 after the level conversion, and control analog switch 10 is linked serial ports on the power line communication module 4, order is sent to power line communication module 4, by power line communication module 4 order is sent to network home appliance again.The data of being come by network home appliance also send on the computing machine with opposite direction.

Remote telephone part ultimate principle:

When phone is squeezed into, the utility model monitoring ringdown, when detecting 6 ringdowns, central microprocessor 6 is changed to high level with the P1.4 pin, triode V1, the V2 conducting, power up for relay K 1 and RC224ATL, K1 close and, signal on the telephone wire is coupled to double-tone frequently on the decoding circuit MT8870 through transformer T1, and sound circuit 9 is play voice and given the person that squeezes into the phone with voice suggestion simultaneously, identification squeezes into phone person's button, carry out password identification, network home appliance that selection will be controlled and the content that will control.

Remote computer remote control ultimate principle:

Remote computer connects the utility model by modulator-demodular unit 2 with dial mode.Computing machine sends double-audio signal # behind the utility model off-hook, when phone is squeezed into, during the utility model monitoring bell signal detection to 6 time ringdown, central microprocessor 6, the P1.4 pin is changed to high level, triode V1, the V2 conducting, power up for relay K 1 and RC224ATL, K1 close and, signal on the telephone wire is coupled on the integrated circuit MT8870 of double-tone frequency decoding circuit 5 through transformer T1, if single-chip microcomputer recognized double-audio signal # in 2 seconds, then think dialling in of remote computer, Single-chip Controlling analog switch 10 is received serial port on the modulator-demodular unit 2, and sends and to reply instruction and just can and inquire about tame electricity condition by the utility model control to modulator-demodular unit 2 modulator-demodular units 2 and the remote computer remote computer of shaking hands after the success.

After household electrical appliances break down, send failure message by line of electric force to the present networks domestic electric appliances controller, the utility model is after receiving failure message, control and dial in to the after sale service center with central microprocessor 6 equally, shaking hands after the success, failure message and customer information are sent to the after sale service center with the computing machine at after sale service center.

The utility model of constructing thus realized remote telephone, remote computer to many network home appliances to computing machine in the information transmission of household electrical appliances and control, the family to the information transmission and the control of network home appliance, and the warning certainly of fault etc., use flexible, convenient, reliable, inexpensive.

Claims

1, a kind of network domestic electric appliances controller, it is characterized in that it is by the central microprocessor (6) that solidifies a plurality of control programs within it and the modulator-demodular unit (2) that is attached thereto, storer (8), the level shifting circuit (7) that the R232 interface is arranged and sound circuit (9) double-tone decoding circuit (5) frequently, power line communication module (4) and analog switch (10) and corresponding power supply (11) composition also can be connected with network home appliance (12) and control its work via power line communication module (4).

2, device according to claim 1 is characterized in that said apparatus also can be made into modular structure form that the housing M of rectangular parallelepiped contains with the protection inner structure be convenient to the outside and patch.