CN102677433A - Washing machine inflow judging method and washing machine applying same - Google Patents
Washing machine inflow judging method and washing machine applying same Download PDFInfo
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- CN102677433A CN102677433A CN2012100698052A CN201210069805A CN102677433A CN 102677433 A CN102677433 A CN 102677433A CN 2012100698052 A CN2012100698052 A CN 2012100698052A CN 201210069805 A CN201210069805 A CN 201210069805A CN 102677433 A CN102677433 A CN 102677433A
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Abstract
The invention discloses a washing machine inflow judging method and a washing machine applying the method. The method comprises the following steps of: presetting a standard slope value Kb(i) of a water level changing curve which varies along with inflow time in a washing machine computer program controller, starting inflow, and starting detection of a water level value; continuously acquiring the water level value in a set time range, processing according to the least square method to form a water level variation line, thus a slop value Ki of a water level changing line is obtained; and judging inflow condition by comparing the slope value Ki of the water level changing curve with the standard slope value Kb(i) and sending a message. By adopting the technical scheme, the washing machine can detect abnormal condition at any time in an inflow process, an alarm can be given timely, a user can be guaranteed to timely solve the inflow problem, and washing can be guaranteed to be carried out smoothly.
Description
Technical field
The present invention relates to a kind of washing machine inflow determination methods, particularly relating to can be through the slope and the comparison of setting slope of water inlet SEA LEVEL VARIATION line, judges the method for flooded condition at any time and uses the washing machine of this method.
Background technology
Domestic electric washer is divided into pulsator washing machine, roller washing machine, stirring washing machine.During washing machine inflow, receive hydraulic pressure or the influence of the situation of temporarily cutting off the water, can cause that the washing machine inflow time is overtime, influence the operate as normal of washing machine.
The overtime warning of existing water inlet has dual mode, a kind of traditional scheme: set flooding time section of corresponding water inlet water level settings, when the time to after the designated water level of not intaking, promptly report to the police and quit work, wait for customer inspection.This water inlet detection scheme that present most washing machine all adopts.The setting-up time section is long, and what have is set at 6～8 minutes, and what have is longer; And the possibility that has wrong report.If the user has just gone out after starting washing machine, and that washing machine inflow exists is unusual, just reminds the user after having spent a period of time, and the user can't in time know the washing machine abnormal conditions.Another kind of traditional scheme: on the water inlet system of washing machine, increase by a flow sensor, judged whether the current process through the data that detect flow sensor in the water inlet process, thereby judge whether water inlet is unusual.This mode can the detection at any time flooded condition, but increases cost, and not all type all increases this flow sensor.
Summary of the invention
The present invention is based on above-mentioned defective of the prior art, a kind of washing machine inflow determination methods and washing machine thereof are provided, solve the overtime warning function of washing machine inflow oversize problem detection time, perhaps can detection at any time intake unusually but the problem that cost increases.
The objective of the invention is to, not improving under the complete machine condition of cost, when washing machine inflow is unusual, can in time report to the police, the prompting user adjusts.
In order to realize the object of the invention, the present invention adopts following technical scheme:
A kind of washing machine inflow determination methods is provided with water level in advance with the standard slope value Kb (i) that flooding time t changes the SEA LEVEL VARIATION line that forms in the computer program controller of washing machine, said method comprising the steps of:
S1, startup water inlet, beginning sensed water level value SWm;
S2, get the water level value of setting-up time scope p continuously, water level value is fitted to straightway with the curved section that flooding time changes, draw the slope K i of this straightway; S3, Ki and Kbi are compared, carry out S4 or S5; S4, if Ki Kbi, water inlet is unusual, sends alarm signal; S5, if Ki >=Kbi, water inlet is normal, continues water inlet; S6, circulation S2 to S5 are up to the designated water level of intaking; Wherein, i, m are the time point value, m=1,2 ... P ... T, i=p, p+1 ... T.
The standard slope value Kb (i) of said SEA LEVEL VARIATION line measures under minimum hydraulic pressure, maximum load condition.
The setting-up time scope is 30s-60s in the said S2 step.
Preferably setting time range in the said S2 step is p=30 s, and the said water level value of getting setting-up time scope p continuously is meant from SWm to SWm+29, m=1 wherein, 2 ... (t-29).
Reading of the water level value of said each time point, the water level value that is detection set point number in time point is got the water level value of its mean value as this time point as one group.
Said time point is got per second, and said set point number is got with chip and algorithm suitable, and preferably, said set point number is 60 times, and detecting 60 water level values in the per second is one group.
After removing minimum and peak in said one group of data, its mean value is as the water level value of this time point.
Said water inlet water level is soon-slow-fast three phases with the variation that flooding time increases.Described water inlet water level oblique line rate value is greatly-little-big distribution situation with the flooding time increase.
It is said that water level value in the setting-up time scope is fitted to straight line is to adopt least square method to handle.
The invention still further relates to a kind of automatic washing machine; Comprise casing, splendid attire washings urceolus, be sleeved on the inner core, water feed apparatus, drainage arrangement, level sensor, the computer program controller that are used for the splendid attire washing clothes in the outer bucket, washing machine uses aforesaid washing machine inflow determination methods.
Through adopting above-mentioned technical scheme, laundry function detection at any time in the water inlet process is in time reported to the police to abnormal conditions, guarantees that the user can in time solve the water inlet problem, guarantees carrying out smoothly of washing procedure.
Description of drawings
Fig. 1 is the flow chart of washing machine inflow determination methods according to the invention
Fig. 2 is the flow chart of washing machine inflow determination methods most preferred embodiment according to the invention;
Fig. 3 is the corresponding established standards slope K b curve of roller washing machine SEA LEVEL VARIATION situation according to the invention;
Fig. 4 is the corresponding established standards slope K b curve of rotary drum washing machine SEA LEVEL VARIATION situation according to the invention.
Among the figure: SW representes water level value, and t representes flooding time, and K representes slope.
The specific embodiment
Below in conjunction with accompanying drawing, washing machine inflow determination methods provided by the invention and washing machine are elaborated.
Referring to shown in Figure 2, be most preferred embodiment of the present invention.The washing machine start that powers on starts behind the setting program, when program has the flow process of setting before carrying out water inlet, such as fault judgement, weigh etc., carries out this flow process earlier.Then, water intaking valve is opened and is begun water inlet, and the sensed water level value is read 60 numbers in the program setting per second, and per 30 seconds are as the setting-up time scope that is used to calculate the SEA LEVEL VARIATION line slope.
Setting value is following in the present embodiment:
Intake and judge after 30 seconds whether water inlet is normal;
Flooding time is t=120 second, water inlet overall process continuous detecting water level SWm, m=1,2 ... 120;
Setting-up time scope p=30 second, SEA LEVEL VARIATION line slope Ki, i=30,31 ... 120.
The standard slope K b (i) of SEA LEVEL VARIATION line comprises Kb30, Kb31 ... ..Kb120.
In the present embodiment; Concrete water inlet determination methods is described below: the standard slope value Kb (i) of water level with the flooding time t variation SEA LEVEL VARIATION line that forms is set in the computer program controller of washing machine in advance, and the standard slope value Kb (i) of said SEA LEVEL VARIATION line measures under minimum hydraulic pressure, maximum load condition.
The washing machine energising starts, and opens water intake valve, is that unit begins the detection computations water level value with the second.The water level value quantity of getting in each second is different and different according to chip and algorithm; In the present embodiment; Each second, 60 water level values were got in setting, and all water level values that will get each second average processing, and the mode of more optimizing is to take the mean after removing the highest, minimum; Average data after handling is stored, as the water level value SWm of this time point.
30 mean value SWm with preceding 30 seconds that get promptly the 1st second to the 30th second; M=1,2 ... 30 by the processing of " least square method " principle; Calculate the slope value Ki of the straight line of 30 SW values formation; Unusually whether i=30 compares the standard slope value Kb30 that stores in actual water inlet water level slope value K30 that calculates and the computer plate, thereby judge into water.The typical coefficient Kb (i) of program setting verifies out in advance, is the value that records under the machine minimum hydraulic pressure that can bear, the maximum load situation.As long as K i >=Kb i, water inlet is normal; K i Kb i, and water inlet is unusual, and K i=0 does not have water inlet.
This explanation be, i and m are the time point value, first value of Ki was calculated at the 30th second; Understand for the ease of unified; First Ki value is called K30, promptly in the time of the 30th second, through detecting SW1; SW2 ... SW30 fits to the SEA LEVEL VARIATION line with it, and the slope value Ki that calculates SEA LEVEL VARIATION line in the setting-up time scope is as K30.
Data in the adjacent 30s are handled, and The data is clamp-oned the method principle, after promptly the data of 31s are come in; Originally the data of the 1s that stored are extruded; Inside still only keeps 30 data, by that analogy, and like 3s～32s, 4s～33s ... The 1st second to the 30th second continuous water intaking place value of promptly intaking fits to the SEA LEVEL VARIATION line; SEA LEVEL VARIATION line slope K30 when drawing the 30th second; Continuous water intaking second place value fitted to the SEA LEVEL VARIATION line from the 2nd second to the 31st second, and the SEA LEVEL VARIATION line slope K31 when drawing the 31st second arrives K120 by that analogy.
Referring to Fig. 3, shown in Figure 4, the situation to roller washing machine and rotary drum washing machine water inlet SEA LEVEL VARIATION indicates corresponding water level slope value situation of change respectively respectively.
Phase I shown in the figure is that the firm water inlet of intaking is full of inside and outside bucket gap, and this moment, the washing clothes water absorption was few, and water level increases progressively comparatively fast between inside and outside bucket; Second stage is the bucket bucket end in water inlet did not have, and in the time of water inlet, washing clothes begins a large amount of suctions, and the inner bucket water position increases progressively slowly; Phase III, the interior clothing suction of bucket is saturated, continues in the water inlet process, and the inner bucket water position increases progressively comparatively fast.
Measured actual water level slope variation standard value K respectively to the three phases different situations, in the water inlet process, respectively the value and the standard value Kb of actual detected have been compared to each stage, judged in the whole process that normally whether water inlet.
In sum, through adopting above-mentioned technical scheme, adopt the washing machine of this control method for washing; Washing machine adopts above method to judge water level; Except can in time judging the into abnormal problem at water initial stage, in whole water inlet process, also can monitor the water inlet data constantly, unusual circumstance in time.
Certainly, the present invention be not limited to above-mentioned for example, the technical scheme that it will be apparent to those skilled in the art that; Under the situation that does not break away from the spirit or scope of the present invention; This technical scheme all is suitable at impeller-type, drum-type, agitator type washing machine and other similar scrubber, and the present invention is made various modifications and changes in claim of the present invention and be equal in the scope of replacement, as; The setting-up time scope diminishes; Then whether unusual washing machine can earlier advance water judgement, and and for example, the amount of the bit data of fetching water each second can be according to chip and algorithm and be different; Be less than or more than 60 times all be attainable scheme, then such modification and change are contained in the present invention.
Claims (10)
1. a washing machine inflow determination methods is characterized in that, water level is set in advance with the standard slope value Kb (i) that flooding time t changes the SEA LEVEL VARIATION line that forms in the computer program controller of washing machine, said method comprising the steps of:
S1, startup water inlet, beginning sensed water level value SWm;
S2, get the water level value of setting-up time scope p continuously, water level value is fitted to straightway with the curved section that flooding time changes, draw the slope K i of this straightway;
S3, Ki and Kbi are compared, carry out S4 or S5;
S4, if Ki Kbi, water inlet is unusual, sends alarm signal;
S5, if Ki >=Kbi, water inlet is normal, continues water inlet;
S6, circulation S2 to S5 are up to the designated water level of intaking;
Wherein, i, m are the time point value, m=1,2 ... P ... T, i=p, p+1 ... T.
2. washing machine inflow determination methods according to claim 1 is characterized in that, the standard slope value Kb (i) of said SEA LEVEL VARIATION line measures under minimum hydraulic pressure, maximum load condition.
3. washing machine inflow determination methods according to claim 2 is characterized in that, the setting-up time scope is 30s-60s in the said S2 step.
4. washing machine inflow determination methods according to claim 3 is characterized in that, preferably setting time range in the said S2 step is p=30 s, and the said water level value of getting setting-up time scope p continuously is meant from SWm to SWm+29, m=1 wherein, 2 ... (t-29).
5. washing machine inflow determination methods according to claim 4 is characterized in that, the reading of the water level value of said each time point, be in time point, detect set point number water level value as one group, get the water level value of its mean value as this time point.
6. washing machine inflow determination methods according to claim 5 is characterized in that said time point is got per second, and said set point number is got with chip and algorithm suitable, and preferably, said set point number is 60 times, and detecting 60 water level values in the per second is one group.
7. washing machine inflow determination methods according to claim 6 is characterized in that, behind removal minimum and the peak, its mean value is as the water level value of this time point in said one group of data.
8. according to each described washing machine inflow determination methods of claim 1 to 7; It is characterized in that; Said water inlet water level is soon-slow-fast three phases with the variation that flooding time increases, and described water inlet water level oblique line rate value is greatly-little-big distribution situation with the flooding time increase.
9. washing machine inflow determination methods according to claim 8 is characterized in that, said water level value in the setting-up time scope is fitted to straight line is to adopt least square method to handle.
10. washing machine; Comprise casing, splendid attire washings urceolus, be sleeved on the inner core, water feed apparatus, drainage arrangement, level sensor, the computer program controller that are used for the splendid attire washing clothes in the outer bucket; It is characterized in that, use according to each described washing machine inflow determination methods of claim 1 to 9.
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| WO2018010634A1 (en) * | 2016-07-11 | 2018-01-18 | 青岛海尔洗衣机有限公司 | Method of controlling washing machine, control device, and control system |
| CN108914492A (en) * | 2018-09-30 | 2018-11-30 | 福建易洁科技有限公司 | A kind of water level of washing machine frequency automatic calibration method |
| CN112095292A (en) * | 2019-05-28 | 2020-12-18 | 青岛海尔洗衣机有限公司 | Abnormity detection method for washing machine |
| CN112522910A (en) * | 2019-08-30 | 2021-03-19 | 青岛海尔洗衣机有限公司 | Abnormity detection method for washing machine |
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Effective date of registration: 20160613 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: Qingdao Haier Drum Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Drum Washing Machine Co., Ltd. |
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