CN102061592A - Fully automatic washing machine instantaneous power off memory circuit and processing method thereof - Google Patents

Abstract

The invention discloses a fully automatic washing machine instantaneous power off memory circuit and a processing method thereof. The circuit consists of a single chip microcomputer IC1, a memory chip IC2 and a peripheral circuit. When the washing machine suddenly powers off, the single chip microcomputer IC1 records the current operating mode of the washing machine and sends the record to the memory chip IC2 for storage; and after the washing machine powers on again, the single chip microcomputer IC1 recovers the original operating mode of the washing machine. By adopting the memory circuit disclosed by the invention, the original periodic power off memory processing method of the fully automatic washing machine can be changed, the additional washing time caused by sudden power off can be reduced, electricity and water resources can be saved, the instantaneous power off memory function of the fully automatic washing machine can be realized and the requirements of customers can be met.

Description

Automatic washing machine instantaneous power-down memory circuit and processing method thereof

Technical field

The present invention relates to a kind of automatic washing machine instantaneous power-down memory circuit and processing method thereof.

Background technology

Automatic washing machine instantaneous power-down memory function is in washing process after the power down suddenly, can continue operation by the state when power down when powering on once more, the washing machine that has the power-failure memory function in the market, major part is interim power-failure memory, i.e. memory stage by stage, no matter which place power down in a stage, powering on once more is that local continuation of all beginnings in stage from then on moves.

In the area of the easy power down of some voltage instabilities, will increase wash time like this, and take electricity charge water.

Summary of the invention

The purpose of this invention is to provide a kind of automatic washing machine instantaneous power-down memory circuit and processing method thereof, realize automatic washing machine instantaneous power-down memory function.

Technical scheme of the present invention is as follows:

A kind of automatic washing machine instantaneous power-down memory circuit, form by single-chip microcomputer IC1 and storage chip IC2, it is characterized in that: the P05 of single-chip microcomputer IC1, the P06 end links to each other by lead with the SDA end with the SCL end of storage chip IC2 respectively, the SCL end of storage chip IC2 and SDA end are also respectively by lead difference series resistance R2, insert dc source VCC with the VCC end behind the R1, the A0 of storage chip IC2, A1, the A2 end is connected to by capacitor C 1 between the GND end of dc source VCC and storage chip IC2 by inserting dc source VCC after the lead parallel connection, ground connection after the parallel branch that C2 forms.

A kind of processing method of automatic washing machine instantaneous power-down memory, it is characterized in that: it specifically may further comprise the steps:

(1), power down process: when washing machine cuts off the power supply suddenly in the running, the power supply sine wave signal will disappear, owing to have certain electric weight in the capacitor C 2, can keep single-chip microcomputer IC1 and storage chip IC2 work a period of time; If continuing 60ms, single-chip microcomputer IC1 detects less than the power supply sine wave signal, single-chip microcomputer IC1 is with regard to set power down flag bit, suspend the everything of washing machine, and begin the variable that to need under the washing machine present condition to remember, the duty that comprises power down flag bit and washing machine, store among the storage chip IC2 and go, close washing machine then;

(2), go up electric treatment: when washing machine powers on once more, single-chip microcomputer IC1 reads the power down flag bit among the storage chip IC2 earlier, judge whether washing machine fell, if washing machine fell, then single-chip microcomputer IC1 will read the variable of memory and carry out initialization process from storage chip IC2, recover washing machine to the preceding duty of power down and move washing machine; If washing machine did not fall electricity, then single-chip microcomputer IC1 is set to acquiescence duty when powering on washing machine.

Beneficial effect of the present invention:

The present invention has changed the original interim power-failure memory processing method of automatic washing machine, reduced the wash time that increases owing to sudden power, save electric energy and water resource, realized automatic washing machine instantaneous power-down memory function, satisfied client's demand.

Description of drawings

Fig. 1 is circuit theory diagrams of the present invention.

Fig. 2 is the flow chart of power down process of the present invention.

Fig. 3 is the flow chart of electric treatment in the present invention.

The specific embodiment

Referring to Fig. 1,2,3, a kind of automatic washing machine instantaneous power-down memory circuit, form by single-chip microcomputer IC1 and storage chip IC2, the P05 of single-chip microcomputer IC1, the P06 end links to each other by lead with the SDA end with the SCL end of storage chip IC2 respectively, the SCL end of storage chip IC2 and SDA end are also respectively by lead difference series resistance R2, insert dc source VCC with the VCC end behind the R1, the A0 of storage chip IC2, A1, the A2 end is connected to by capacitor C 1 between the GND end of dc source VCC and storage chip IC2 by inserting dc source VCC after the lead parallel connection, ground connection after the parallel branch that C2 forms.

A kind of processing method of automatic washing machine instantaneous power-down memory specifically may further comprise the steps:

(1), power down process: when washing machine cuts off the power supply suddenly in the running, the power supply sine wave signal will disappear, owing to have certain electric weight in the capacitor C 2, can keep single-chip microcomputer IC1 and storage chip IC2 work a period of time; If continuing 60ms, single-chip microcomputer IC1 detects less than the power supply sine wave signal, single-chip microcomputer IC1 is with regard to set power down flag bit, suspend the everything of washing machine, and begin the variable that to need under the washing machine present condition to remember, the duty that comprises power down flag bit and washing machine, store among the storage chip IC2 and go, close washing machine then;

(2), go up electric treatment: when washing machine powers on once more, single-chip microcomputer IC1 reads the power down flag bit among the storage chip IC2 earlier, judge whether washing machine fell, if washing machine fell, then single-chip microcomputer IC1 will read the variable of memory and carry out initialization process from storage chip IC2, recover washing machine to the preceding duty of power down and move washing machine; If washing machine did not fall electricity, then single-chip microcomputer IC1 is set to acquiescence duty when powering on washing machine.

Claims (2)

1. automatic washing machine instantaneous power-down memory circuit, form by single-chip microcomputer IC1 and storage chip IC2, it is characterized in that: the P05 of single-chip microcomputer IC1, the P06 end links to each other by lead with the SDA end with the SCL end of storage chip IC2 respectively, the SCL end of storage chip IC2 and SDA end are also respectively by lead difference series resistance R2, insert dc source VCC with the VCC end behind the R1, the A0 of storage chip IC2, A1, the A2 end is connected to by capacitor C 1 between the GND end of dc source VCC and storage chip IC2 by inserting dc source VCC after the lead parallel connection, ground connection after the parallel branch that C2 forms.

2. the processing method of automatic washing machine instantaneous power-down memory, it is characterized in that: it specifically may further comprise the steps:

(1), power down process: when washing machine cuts off the power supply suddenly in the running, the power supply sine wave signal will disappear, owing to have certain electric weight in the capacitor C 2, can keep single-chip microcomputer IC1 and storage chip IC2 work a period of time; If continuing 60ms, single-chip microcomputer IC1 detects less than the power supply sine wave signal, single-chip microcomputer IC1 is with regard to set power down flag bit, suspend the everything of washing machine, and begin the variable that to need under the washing machine present condition to remember, the duty that comprises power down flag bit and washing machine, store among the storage chip IC2 and go, close washing machine then;

(2), go up electric treatment: when washing machine powers on once more, single-chip microcomputer IC1 reads the power down flag bit among the storage chip IC2 earlier, judge whether washing machine fell, if washing machine fell, then single-chip microcomputer IC1 will read the variable of memory and carry out initialization process from storage chip IC2, recover washing machine to the preceding duty of power down and move washing machine; If washing machine did not fall electricity, then single-chip microcomputer IC1 is set to acquiescence duty when powering on washing machine.

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