CN109487504B - Water level detection method for washing equipment and washing equipment - Google Patents

Water level detection method for washing equipment and washing equipment Download PDF

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Publication number
CN109487504B
CN109487504B CN201811271403.4A CN201811271403A CN109487504B CN 109487504 B CN109487504 B CN 109487504B CN 201811271403 A CN201811271403 A CN 201811271403A CN 109487504 B CN109487504 B CN 109487504B
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Prior art keywords
water
washing
weight
water level
flow rate
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CN201811271403.4A
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CN109487504A (en
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才智
高秋英
郇政杰
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Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/087Water level measuring or regulating devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/18Condition of the laundry, e.g. nature or weight
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The invention relates to the technical field of clothes washing, and particularly provides a water level detection method for washing equipment and the washing equipment, aiming at solving the problem that the water inlet level of the washing equipment cannot be accurately judged under the condition that a water level sensor cannot be installed or is not installed in the existing washing equipment. To this end, the water level detecting method of the present invention includes the steps of: acquiring the weight of an object to be cleaned; obtaining the flow of washing water; and determining the water inlet level of the washing equipment according to the weight and the flow. The washing apparatus of the present invention includes a control device for performing the above-described water level detection method. The water level of the washing equipment is determined according to the weight and the flow, and the water level of the washing equipment is prevented from being detected by a water level sensor, so that the water level of the washing equipment can be still accurately determined under the condition that the water level sensor cannot be installed or is not installed, the cost is reduced, and the use experience of a user is improved.

Description

Water level detection method for washing equipment and washing equipment
Technical Field
The invention relates to the technical field of clothes washing, and particularly provides a water level detection method for washing equipment and the washing equipment.
Background
With the progress of science and technology, the automation level of human life is higher and higher, and daily housework is gradually replaced by machines from manpower. The washing equipment is used as a common household appliance in daily life, and brings great convenience to the life of people. The washing apparatuses are classified according to washing methods, and may be roughly classified into pulsator washing machines and drum washing machines. In the prior art, when a washing machine is in operation, a user only needs to put objects to be washed into an inner barrel, the weight of the objects to be washed put into the inner barrel is automatically detected by a weight detection device, washing water matched with the weight of the objects to be washed is added, and then a set washing program is started to operate.
In order to accurately control the water level of the inlet water in the inner tub, the washing machine includes a weight sensor for detecting the weight of the laundry and a water level sensor for detecting the water level in the inner tub, the amount of the washing water added is determined according to the weight of the laundry detected by the weight sensor, and the water level in the inner tub is detected by the water level sensor. However, for some special washing machines, such as a hole-free inner-barrel washing machine, the water level in the inner barrel cannot be detected through the water level sensor, so that the water inlet level of the washing machine cannot be accurately controlled, better washing for the objects to be washed cannot be provided, and the use experience of a user is greatly influenced.
Therefore, there is a need in the art for a new water level detection method for a washing apparatus and a washing apparatus to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem that the water level of the washing apparatus cannot be accurately determined when the water level sensor cannot be installed or not installed in the existing washing apparatus, the present invention provides a water level detection method for a washing apparatus, the water level detection method comprising the steps of: acquiring the weight of an object to be cleaned; obtaining the flow of washing water; and determining the water inlet level of the washing equipment according to the weight and the flow.
In a preferred embodiment of the above water level detecting method, the step of "acquiring a flow rate of the washing water" includes: acquiring first water injection time of washing equipment in the process of executing water injection operation by the washing equipment; obtaining the weight of the object to be cleaned again; determining the injection amount of the washing water according to the weight obtained again and the weight obtained before; the flow rate is determined based on the injection amount and the first water injection time.
In the preferred technical scheme of the water level detection method, the step of "obtaining the weight of the objects to be cleaned again" specifically comprises the following steps: judging whether the first water injection time reaches a preset time threshold value or not; if the first water filling time reaches the preset time threshold, the operation of acquiring the weight of the objects to be cleaned again is executed.
In a preferred embodiment of the above water level detecting method, the step of "obtaining the weight of the object to be washed again" further includes: and if the first water filling time does not reach the preset time threshold value, the operation of obtaining the weight of the objects to be cleaned again is not executed.
In a preferred embodiment of the above water level detecting method, the step of "determining the flow rate according to the injection amount and the first water injection time" includes: the flow rate is calculated according to the following formula: q ═ G (G) 2 -G 1 )/t 1 Wherein Q is the flow, G 1 For the previously obtained weight, G 2 For the weight obtained again, t 1 The first water injection time.
In a preferred embodiment of the above water level detecting method, before the step of "obtaining a flow rate of the washing water", the water level detecting method further includes: the washing apparatus is caused to perform a water filling operation.
In a preferred embodiment of the above water level detecting method, the step of determining the water level of the washing device according to the weight and the flow rate includes: determining the input amount of the washing water according to the previously acquired weight; determining a second water injection time of the washing equipment according to the input amount and the flow; and determining the water inlet level of the washing equipment according to the second water filling time.
In a preferred embodiment of the above water level detecting method, the step of determining the second water filling time of the washing device according to the input amount and the flow rate includes: the second water injection time is calculated according to the following formula: t is t 2 =G 3 /Q, wherein t 2 For the second water injection time, G 3 Q is the flow rate.
In a preferred embodiment of the above water level detecting method, the amount of the liquid is larger than the amount of the liquid.
In addition, the present invention also provides a washing apparatus including a control device configured to perform the above water level detection method.
As can be understood by those skilled in the art, in a preferred embodiment of the water level detecting method of the present invention, the weight of the object to be cleaned is acquired; obtaining the flow of washing water; the water inlet level of the washing machine is determined according to the weight and the flow rate. Compared with the technical scheme that the water level of the washing machine is determined by the water level sensor in the prior art, the input amount of the washing water is determined according to the weight of the objects to be washed in the process of determining the water level of the washing machine, the second water injection time of the washing machine is determined according to the input amount and the flow, and the water level of the washing machine is determined according to the second water injection time, so that the water level of the washing machine can be accurately determined, the water level of the washing machine is prevented from being detected by the water level sensor, the water level of the washing machine can still be accurately determined under the condition that the water level sensor cannot be installed or is not installed, the cost is reduced, and the use experience of a user is improved.
Further, in the process that the washing machine performs water injection operation, when the first water injection time reaches the preset time threshold, the weight of the objects to be washed is obtained again, the injection amount of the washing water is determined according to the difference value between the weight of the objects to be washed obtained again and the weight of the objects to be washed obtained before, and the flow rate of the washing water is determined according to the ratio of the injection amount of the washing water to the first water injection time, so that the flow rate of the washing water can be determined accurately, the flow rate of the washing water is prevented from being detected by adopting a flow sensor, the flow rate of the washing water can still be determined accurately under the condition that the flow sensor cannot be installed or is not installed, the cost is further reduced, and the use experience of a user is improved.
Drawings
The water level detecting method for a washing apparatus and the washing apparatus of the present invention will be described with reference to the accompanying drawings in conjunction with a washing machine. In the drawings:
FIG. 1 is a flow chart of a water level detection method of the present invention;
fig. 2 is a flowchart of a water level detection method according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present application has been described in conjunction with a washing machine, the technical solution of the present invention is not limited thereto, and the water level detection method can be obviously applied to other similar washing apparatuses such as a washing and drying machine, a shoe washing machine, etc., without departing from the principle and scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "in", "on", and the like are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Based on the technical problems proposed in the background art, the invention provides a water level detection method for a washing machine, which aims to determine the water inlet level of the washing machine according to the weight and the flow, and avoids the adoption of a water level sensor to detect the water inlet level of the washing machine, so that the water inlet level of the washing machine can still be accurately determined under the condition that the water level sensor cannot be installed or is not installed, the cost is reduced, and the use experience of a user is improved.
Referring to fig. 1 and 2, fig. 1 is a flowchart of a water level detection method of the present invention; fig. 2 is a flowchart of a water level detection method according to an embodiment of the present invention. As shown in fig. 1, the water level detecting method of the present invention comprises the steps of:
s1, acquiring the weight of the object to be cleaned;
s2, obtaining the flow of the washing water;
and S3, determining the water inlet level of the washing machine according to the weight and the flow rate.
Preferably, in the process of obtaining the weight of the object to be cleaned and the flow rate of the washing water, the weight of the object to be cleaned may be obtained first, and then the flow rate of the washing water may be obtained; or the flow of the washing water can be obtained first, and then the weight of the object to be cleaned can be obtained; the weight of the objects to be cleaned and the flow rate of the washing water can be simultaneously obtained, and those skilled in the art can flexibly adjust and set the obtaining sequence of the weight of the objects to be cleaned and the flow rate of the washing water in practical application, without departing from the principle and scope of the present invention.
In a preferred embodiment, before the step of "obtaining a flow rate of the washing water" of step S2, the water level detecting method further includes:
and S20, the washing machine is caused to perform a water filling operation.
Specifically, the washing machine is caused to perform a water filling operation to fill a certain amount of washing water into the washing tub of the washing machine in step S20, such that the flow rate of the washing water is determined according to the injection amount of the washing water and the water filling time in step S2.
In a preferred embodiment, the step of "acquiring the flow rate of the washing water" in the step S2 specifically includes:
s21, acquiring a first water filling time of the washing machine in the process of executing the water filling operation of the washing machine;
s22, obtaining the weight of the object to be cleaned again;
s23, determining the injection amount of the washing water according to the weight obtained again and the weight obtained before;
and S24, determining the flow rate according to the injection amount and the first water injection time.
Preferably, in step S22, the step of "acquiring the weight of the object to be cleaned again" includes:
s221, judging whether the first water injection time reaches a preset time threshold value;
s222, if the first water injection time reaches a preset time threshold, performing operation of acquiring the weight of the object to be cleaned again;
and S223, if the first water injection time does not reach the preset time threshold, not executing the operation of obtaining the weight of the object to be cleaned again.
Specifically, in step S222, if the first water filling time reaches the preset time threshold, which indicates that a certain amount of washing water has been filled into the washing tub, and the filling amount of the washing water can accurately determine the flow rate of the washing water, the washing machine stops the water filling operation, and obtains the weight of the object to be washed again. Preferably, the injection amount of the washing water is smaller than the required water inflow amount of the objects to be washed.
Further, in step S223, if the first water filling time does not reach the preset time threshold, which indicates that the flow rate of the washing water is less and it is difficult to accurately determine the flow rate of the washing water, the washing machine continues to perform the water filling operation to continuously fill the washing water into the washing tub, and the weight of the object to be washed is not obtained.
In the above process, by setting the preset time threshold, a conclusion is given to judge whether to execute the operation of reacquiring the weight of the object to be cleaned, so that the weight of the object to be cleaned can be reacquired in time. Here, the preset time threshold may be a shortest time, for example, 30s, 45s, etc., in which the flow rate of the washing water can be accurately determined. Of course, the preset time threshold is not limited to the time illustrated above, and may be other times, such as experimental time obtained by a person skilled in the art according to an experiment under a specific working condition, or empirical time obtained according to an experiment, and whatever time is taken, as long as the boundary point determined by the preset time threshold is satisfied to meet the requirement of determining whether to perform the operation of obtaining the weight of the object to be cleaned again.
Preferably, in step S23, the weight obtained again in step S22 is subtracted from the weight obtained in step S1, and the obtained difference is the amount of water injected into the washing water.
Preferably, in step S24, the step of "determining the flow rate according to the injection amount and the first water injection time" includes: the flow rate is calculated according to the following formula:
Q=(G 2 -G 1 )/t 1
wherein, Q: flow rate;
G 1 : the previously acquired weight;
G 2 : the weight obtained again;
t 1 : and (5) first water injection time.
Preferably, the flow rate Q is a mass flow rate; of course, the flow rate Q may be a volume flow rate, and when the flow rate Q is a volume flow rate, the above formula is modified such that Q is (G) 2 -G 1 )/(ρ·t 1 ) And ρ is the density of the washing water.
Wherein the weight obtained again is the sum of the weight obtained before and the injection amount of the washing water. Therefore, in the process of calculating the flow speed of the washing water, the injection amount of the washing water can be determined according to the difference value between the weight obtained again and the weight obtained before, and the flow of the washing water is determined according to the ratio of the injection amount of the washing water to the first water injection time, so that the flow of the washing water is prevented from being detected by a flow sensor, the washing machine can still accurately determine the flow of the washing water under the condition that the flow sensor cannot be installed or is not installed, the cost is further reduced, and the use experience of a user is improved.
In a preferred embodiment, the step of determining the water level of the washing machine according to the weight and the flow rate in the step S3 includes:
s31, determining the input amount of the washing water according to the weight acquired before;
s32, determining second water filling time of the washing machine according to the input quantity and the flow;
and S33, determining the water inlet level of the washing machine according to the second water filling time.
Preferably, in step S31, since the input amount of the washing water is related to the weight of the laundry, the input amount of the washing water may be determined according to the weight of the laundry acquired in step S1.
Further, the dosage is larger than the injection amount.
Preferably, the step of "determining the second filling time of the washing machine according to the input amount and the flow rate" in the step S32 specifically includes: the second water injection time is calculated according to the following formula:
t 2 =G 3 /Q
wherein, t 2 : second water injection time;
G 3 : the putting amount;
q: and (4) flow rate.
Wherein, under the condition that the flow of the washing water is fixed, the second water injection time is positively correlated with the input amount of the washing water, and the water injection time is gradually prolonged along with the increase of the input amount of the washing water, so that the washing water with enough amount is injected into the washing barrel.
Preferably, when the flow rate Q is a volume flow rate, the above formula needs to be modified to t 2 =G 3 /(ρ · Q); or, G 3 The indicated dosage is the volume of wash water to be dosed.
Preferably, in step S33, since the second filling time and the inlet water level are positively correlated, and as the second filling time is prolonged, more and more washing water is filled into the washing tub, so that the inlet water level of the washing machine is gradually increased, the inlet water level of the washing machine can be determined by the second filling time, i.e. the total inlet water time of the washing machine is the second filling time, i.e. the inlet water level can be reached to the preset inlet water level.
Further, the water level of the washing machine may be determined by using a table look-up method or a calculation formula based on a relation diagram or a relation between the water filling time and the water level of the washing machine, or may be determined by using other expression modes of the relation between the water filling time and the water level of the washing machine, regardless of which mode is adopted, as long as the water level of the washing machine can be determined.
Further, in the process of performing the water filling operation, the total time required for filling the washing water corresponding to the weight of the objects to be washed is the second water filling time, and since a certain amount of washing water is filled in the step S20 and the filling time of the washing water is the first water filling time, the water filling time when the water filling operation is continued after the step S3 should be the difference between the second water filling time and the first water filling time.
Referring now to fig. 2, fig. 2 is a flowchart of a water level detection method according to a first embodiment of the present invention.
As shown in fig. 2, in one possible embodiment, the flow of the water level detection method for a washing machine of the present invention may be:
s1, acquiring the weight of the object to be cleaned;
s20, enabling the washing machine to perform water filling operation;
s21, acquiring a first water filling time of the washing machine in the process of executing the water filling operation of the washing machine;
s221, judging whether the first water injection time reaches a preset time threshold value;
s222, if the first water injection time reaches a preset time threshold, performing operation of acquiring the weight of the object to be cleaned again;
s223, if the first water injection time does not reach the preset time threshold value, the operation of obtaining the weight of the object to be cleaned again is not executed;
s23, determining the injection amount of the washing water according to the weight obtained again and the weight obtained before;
s24, determining the flow rate according to the injection amount and the first water injection time;
s31, determining the input amount of the washing water according to the weight acquired before;
s32, determining second water filling time of the washing machine according to the input quantity and the flow;
and S33, determining the water inlet level of the washing machine according to the second water filling time.
Step S223 may also be deleted in the above-described water level detection method, which can still be performed without including step S223, and this change does not deviate from the principle and scope of the present invention. Of course, it is also possible to delete at least one or several of the remaining steps of the above-described method, and the water level detection method can still be performed without including at least one or several of the remaining steps, without this change departing from the principle and scope of the present invention.
In still another possible embodiment, the flow of the water level detection method for a washing machine of the present invention may be:
s01, acquiring fuzzy parameter values of the washing machine;
s02, judging whether the fuzzy parameter value is consistent with a preset parameter threshold value;
s03, if the fuzzy parameter value is inconsistent with the preset parameter threshold value, judging that the washing barrel is filled with the objects to be washed;
s04, if the fuzzy parameter value is consistent with the preset parameter threshold value, the washing barrel is judged to be empty, and the dehydration operation of the washing machine is not executed;
s1, when the object to be cleaned in the washing barrel is judged, acquiring the weight of the object to be cleaned;
s20, enabling the washing machine to perform water filling operation;
s21, acquiring a first water filling time of the washing machine in the process of executing the water filling operation of the washing machine;
s221, judging whether the first water injection time reaches a preset time threshold value;
s222, if the first water injection time reaches a preset time threshold, performing operation of acquiring the weight of the object to be cleaned again;
s223, if the first water injection time does not reach the preset time threshold value, the operation of obtaining the weight of the object to be cleaned again is not executed;
s23, determining the injection amount of the washing water according to the weight obtained again and the weight obtained before;
s24, determining the flow rate according to the injection amount and the first water injection time;
s31, determining the input amount of the washing water according to the obtained weight;
s32, determining second water filling time of the washing machine according to the input quantity and the flow;
and S33, determining the water inlet level of the washing machine according to the second water filling time.
Steps S04, S223 may also be deleted in the above water level detection method, which can still be performed without including steps S04, S223, and this change does not depart from the principle and scope of the present invention. Of course, it is also possible to delete at least one or several of the remaining steps of the above-described method, and the water level detection method can still be performed without including at least one or several of the remaining steps, without this change departing from the principle and scope of the present invention.
It should be noted that the above-mentioned embodiment is only a preferred embodiment of the present invention, and is only used for illustrating the principle of the method of the present invention, and is not intended to limit the protection scope of the present invention, and in practical applications, those skilled in the art can implement the above-mentioned function allocation by different steps, i.e. re-dividing or combining the steps in the embodiment of the present invention, as required. For example, the steps of the above embodiments may be combined into one step, or further divided into multiple sub-steps to complete all or part of the functions described above. For the names of the steps involved in the embodiments of the present invention, they are only for distinguishing the respective steps, and are not to be construed as limiting the present invention.
In addition, the present invention also provides a washing machine, which includes a casing, a washing tub, a driving device, a detecting device, and a control device, wherein the washing tub includes an outer tub disposed within the casing and an inner tub rotatably disposed within the outer tub; the driving device is arranged in the shell and used for driving the inner barrel to rotate; the detection device is arranged in the shell and used for detecting the water injection time of the washing machine and the weight of the objects to be washed; the control device is arranged on the shell and can execute the water level detection method based on the detection result of the detection device. Of course, the actual installation positions of the detection means and the control means are not limited to the above-exemplified installation positions, and those skilled in the art can flexibly set the actual installation positions of the detection means and the control means in practical applications as long as the above-described water level detection method can be performed by the mutual cooperation of the detection means and the control means.
Preferably, the driving device may be a driving motor, and the driving motor and the rotating shaft of the inner tub may be connected in a belt transmission, gear transmission or chain transmission manner.
Preferably, the detecting device is an infrared spectrum sensor, and may also be other types of sensors, such as a radio frequency sensor, etc., so as to detect the water filling time of the washing machine and the weight of the objects to be cleaned.
Preferably, the control means is capable of recognizing a result detected by the detecting means, and the above-described water level detecting method is capable of being performed according to the detection result of the detecting means. The control device may be a control device of the washing machine itself, or may be an additional control device or other mobile terminals, which are not described herein again.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (7)

1. A water level detecting method for a washing apparatus, comprising the steps of:
acquiring the weight of an object to be cleaned;
obtaining the flow of washing water;
determining an inlet water level of the washing apparatus according to the weight and the flow rate;
the step of "obtaining the flow rate of the washing water" includes:
acquiring first water injection time of the washing equipment in the process of executing water injection operation by the washing equipment;
obtaining the weight of the object to be cleaned again;
determining the injection amount of the washing water according to the weight obtained again and the weight obtained before;
determining the flow rate according to the injection amount and the first water injection time;
the step of determining the inlet water level of the washing device according to the weight and the flow rate specifically comprises:
determining the input amount of the washing water according to the previously acquired weight;
determining a second water injection time of the washing equipment according to the input amount and the flow;
determining the water inlet level of the washing equipment according to the second water filling time;
the shot size is greater than the shot size.
2. The water level detection method according to claim 1, wherein the step of "obtaining the weight of the object to be washed again" specifically comprises:
judging whether the first water injection time reaches a preset time threshold value or not;
and if the first water injection time reaches the preset time threshold, performing the operation of acquiring the weight of the objects to be cleaned again.
3. The water level detecting method according to claim 2, wherein the step of "obtaining again the weight of the objects to be washed" further comprises:
and if the first water injection time does not reach the preset time threshold, not executing the operation of obtaining the weight of the object to be cleaned again.
4. The water level detection method according to claim 1, wherein the step of determining the flow rate according to the injection amount and the first water injection time specifically comprises:
the flow rate is calculated according to the following formula:
Q=(G 2 -G 1 )/t 1
wherein Q is the flow, G 1 For the previously obtained weight, G 2 For the weight obtained again, t 1 And the first water injection time is set.
5. The water level detection method according to any one of claims 1 to 4, further comprising, before the step of obtaining a flow rate of the washing water:
causing the washing apparatus to perform a water filling operation.
6. The method for detecting water level according to claim 1, wherein the step of determining the second filling time of the washing device according to the input amount and the flow rate comprises:
the second water injection time is calculated according to the following formula:
t 2 =G 3 /Q
wherein, t 2 For the second water injection time, G 3 And Q is the flow.
7. A washing apparatus, characterized by comprising a control device configured to perform the water level detection method of any one of claims 1 to 6.
CN201811271403.4A 2018-10-29 2018-10-29 Water level detection method for washing equipment and washing equipment Active CN109487504B (en)

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