CN111850950B - Drainage control method for washing equipment - Google Patents

Drainage control method for washing equipment Download PDF

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CN111850950B
CN111850950B CN201910364980.6A CN201910364980A CN111850950B CN 111850950 B CN111850950 B CN 111850950B CN 201910364980 A CN201910364980 A CN 201910364980A CN 111850950 B CN111850950 B CN 111850950B
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water level
washing machine
drain
washing
drainage mode
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CN111850950A (en
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才智
高秋英
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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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Abstract

The invention relates to the technical field of washing equipment, and particularly provides a drainage control method for washing equipment, aiming at solving the problem that the existing washing equipment cannot determine the current drainage mode of the washing equipment. To this end, the drain control method of the present invention comprises the steps of: acquiring the water level variation of the washing equipment; and judging the current drainage mode of the washing equipment according to the water level variation. According to the invention, the current drainage mode of the washing equipment is judged according to the water level variation of the washing equipment, so that a user can accurately determine the current drainage mode of the washing equipment, the drainage mode of the washing equipment can be flexibly adjusted according to the use requirement, various use requirements of the user are met, and the use experience of the user is further improved.

Description

Drainage control method for washing equipment
Technical Field
The invention relates to the technical field of washing equipment, and particularly provides a drainage control method for washing equipment.
Background
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 patterns, and can be roughly classified into pulsator washing machines and drum washing machines. At present, the drainage modes of washing machines are generally divided into two types, one is a lower drainage mode for downwards draining water through a drainage electromagnetic valve, and the other is an upper drainage mode for upwards draining water through a water pump, wherein the lower drainage mode is widely applied due to simple structure and convenient use. In the prior art, a washing machine is generally provided with only one drainage mode, and a user can only adopt the default drainage mode of the washing machine in the actual use process, but cannot flexibly select other drainage modes according to the use requirement.
In order to solve the above problems, an invention patent with publication number CN105671878a discloses a "washing machine and a drain control device and a drain control method thereof". Specifically, the washing machine disclosed in the above patent comprises an upper drainage mode and a lower drainage mode, and the same drainage control signal is respectively sent to a first control switch circuit and a delay circuit for controlling the on-off of a tractor, so that the first control switch circuit is turned on to control the tractor to be turned on, and the washing machine carries out lower drainage; the drainage control signal is delayed for a preset time through the delay circuit, the delayed drainage control signal is sent to a second control switch circuit for controlling the connection of the drainage pump, and the second control switch circuit is conducted to control the connection of the drainage pump, so that the washing machine carries out upper drainage. Although the above patent provides the upper drainage mode and the lower drainage mode for the user, the patent does not consider the problem of how to judge the current drainage mode of the washing machine, and is not convenient for the user to judge whether to adjust the drainage mode of the washing machine according to the use requirement of the user, for example, the user wants to use the upper drainage mode to leave the washing water in the washing machine for other use, if the current drainage mode of the washing machine is uncertain, the user cannot judge whether to adjust the drainage mode of the washing machine, and the user may be caused to use the lower drainage mode to directly discharge the washing water in the washing machine, thereby greatly influencing the use experience of the user.
Therefore, there is a need in the art for a new drain control method for a washing apparatus to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, i.e. to solve the problem that the existing washing equipment cannot determine the current drainage mode thereof, the present invention provides a drainage control method for washing equipment, comprising the following steps: acquiring the water level variation of the washing equipment; and judging the current drainage mode of the washing equipment according to the water level variation.
In a preferred technical solution of the above-mentioned drain control method, the washing apparatus includes a drain valve for causing the washing apparatus to perform a drain operation; the step of acquiring the water level variation of the washing device includes: after the drain valve is opened, the water level variation amount is acquired.
In a preferred technical solution of the above-mentioned drain control method, the washing apparatus further includes a drain pump for causing the washing apparatus to perform a drain up operation; the step of "acquiring the water level variation amount after opening the drain valve" specifically includes: after the drain valve is opened and the drain pump is closed, the water level variation amount is acquired.
In a preferred embodiment of the above-mentioned drain control method, the step of "determining the current drain mode of the washing machine according to the water level variation" includes: judging whether the water level variation is larger than a preset water level variation threshold value or not; and if the water level variation is larger than the preset water level variation threshold, judging that the current drainage mode is a lower drainage mode.
In a preferred embodiment of the above-mentioned drain control method, the step of "determining the current drain mode of the washing machine according to the amount of change in the water level" further comprises: and if the water level variation is smaller than or equal to the preset water level variation threshold, judging that the current drainage mode is an upper drainage mode.
In a preferred embodiment of the above-described drain control method, after the step of determining the current drain mode of the washing machine according to the amount of change in the water level, if it is determined that the current drain mode is the lower drain mode, the drain control method further includes: acquiring the water level frequency variation of the washing equipment in the process that the washing equipment performs the water draining operation again; and judging whether to change the current drainage mode of the washing equipment according to the water level frequency variation.
In a preferred embodiment of the above-mentioned drain control method, the step of "determining whether to change the current drain mode of the washing machine according to the water level frequency variation" includes: judging whether the water level frequency variation is smaller than a preset frequency variation threshold value or not; and if the water level frequency variation is smaller than the preset frequency variation threshold, changing the current drainage mode of the washing equipment, and enabling the washing equipment to perform the upper drainage operation.
In a preferred embodiment of the above-mentioned drain control method, the step of "determining whether to change the current drain mode of the washing apparatus according to the water level frequency variation" further comprises: and if the water level frequency variation is larger than or equal to the preset frequency variation threshold, not changing the current drainage mode of the washing equipment, and enabling the washing equipment to continuously perform the lower drainage operation.
In a preferred embodiment of the above-described drain control method, after the step of "determining a current drain manner of the washing machine according to a water level variation", the drain control method further includes: acquiring geographical position information of washing equipment; judging whether the geographical position information is changed; and if the geographical position information is changed, re-executing the operation of judging the current drainage mode of the washing equipment.
In a preferred embodiment of the above-described drain control method, after the step of "determining a current drain manner of the washing machine according to a water level variation", the drain control method further includes: if the geographical location information is not changed, the operation of determining the current drainage mode of the washing apparatus is not performed.
As can be understood by those skilled in the art, in a preferred embodiment of the drain control method of the present invention, a water level variation of the washing machine is acquired; and judging the current drainage mode of the washing machine according to the water level variation. Compared with the technical scheme that the current drainage mode of the washing machine cannot be judged in the prior art, the washing machine can judge the current drainage mode of the washing machine according to the water level variation, for example, under the condition that the drainage valve is opened and the drainage pump is closed, if the water level variation is larger than a preset water level variation threshold value, the washing water in the washing machine can be drained, and the current drainage mode of the washing machine is a drainage mode, at the moment, the drainage valve is opened, and the washing water in the washing machine can be drained; if the water level variation is smaller than or equal to the preset water level variation threshold, it is determined that the washing water in the washing machine is not drained, and it is determined that the current drainage mode of the washing machine is the upper drainage mode, at this time, the drainage valve is opened and the drainage pump is closed, so that the washing water in the washing machine cannot be drained, and thus the current drainage mode of the washing machine can be determined according to the water level variation of the washing machine, so that a user can flexibly adjust the drainage mode of the washing machine according to the use requirements, for example, the lower drainage mode of the washing machine is changed into the upper drainage mode, so that the washing water in the washing machine is left for other uses, or the upper drainage mode of the washing machine is changed into the lower drainage mode, so that electricity is saved, various use requirements of the user are met, and the use experience of the user is improved.
Drawings
The drain control method of the present invention will be described with reference to the accompanying drawings in conjunction with a washing machine, in which:
FIG. 1 is a flow chart of a drain control method of the present invention;
fig. 2 is a flowchart of a drain control 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 is described in conjunction with a washing machine, the technical solution of the present invention is not limited thereto, and it is apparent that the drain control method can be applied to other 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.
Based on the technical problems proposed in the background art, the invention provides a drainage control method for a washing machine, which aims to judge the current drainage mode of the washing machine according to the water level variation of the washing machine, so that a user can accurately determine the current drainage mode of the washing machine, the user can flexibly adjust the drainage mode of the washing machine according to the use requirements, various use requirements of the user are met, and the use experience of the user is improved.
Referring to fig. 1 and 2, fig. 1 is a flow chart of a drain control method of the present invention; fig. 2 is a flowchart of a drain control method according to an embodiment of the present invention. As shown in fig. 1, the drainage control method of the present invention includes the steps of:
s1, acquiring the water level variation of the washing machine;
and S2, judging the current drainage mode of the washing machine according to the water level variation.
In a preferred embodiment, in step S1, "obtaining the water level variation of the washing machine" is to obtain the water level variation of the washing machine during the draining operation of the washing machine.
Preferably, the washing machine includes a drain valve for causing the washing machine to perform a lower draining operation and a drain pump for causing the washing machine to perform an upper draining operation. That is, if the current drainage mode of the washing machine is a lower drainage mode, the washing water in the washing machine can be drained by opening the drainage valve, and the washing water in the washing machine cannot be drained by opening the drainage pump; if the current drainage mode of the washing machine is the upper drainage mode, the washing water in the washing machine can be drained by opening the drainage pump, and the washing water in the washing machine cannot be drained by opening the drainage pump.
In order to accurately judge the current drainage mode of the washing machine, in the process of performing drainage operation of the washing machine, firstly, the drainage valve is opened and the drainage pump is closed, and secondly, the water level variation of the washing machine is obtained, at the moment, if the current drainage mode of the washing machine is a lower drainage mode, the washing water in the washing machine can be drained; if the current drainage mode of the washing machine is the upper drainage mode, the washing water in the washing machine cannot be drained. Of course, it can be appreciated by those skilled in the art that the drain pump may be opened and the drain valve may be closed during the draining operation of the washing machine, and at this time, if the current draining mode of the washing machine is the lower draining mode, the washing water in the washing machine cannot be drained; if the current drainage mode of the washing machine is the upper drainage mode, the washing water in the washing machine can be drained.
Preferably, the water level variation amount of the washing machine is determined by acquiring a water level of the washing machine before and after draining (i.e., a water level of the washing machine after draining the washing water for a preset draining time) each time the washing machine performs a draining operation, and according to the water level before and after draining.
In a preferred embodiment, the step of determining the current drainage mode of the washing machine according to the water level variation in the step S2 includes:
s21, judging whether the water level variation is larger than a preset water level variation threshold value or not;
s22, if the water level variation is larger than a preset water level variation threshold, judging that the current drainage mode is a lower drainage mode;
and S23, if the water level variation is smaller than or equal to the preset water level variation threshold, judging that the current drainage mode is the upper drainage mode.
In step S22, if the water level variation is greater than the preset water level variation threshold, it indicates that the washing water in the washing machine can be drained, and indicates that the current drainage mode of the washing machine is a downward drainage mode, for example, a drainage pipe of the washing machine extends downward along a longitudinal direction of the washing machine or the drainage pipe of the washing machine is placed on the ground, a drainage port of the drainage pipe is inserted into a floor drain on the ground, and at this time, the drainage valve is opened to enable the washing water in the washing machine to be drained downward through the drainage pipe.
In step S23, if the water level variation is less than or equal to the preset water level variation threshold, it indicates that the washing water in the washing machine is not drained, and the current drainage mode of the washing machine is an upper drainage mode, for example, a drainage pipe of the washing machine extends upward along a longitudinal direction of the washing machine, a drainage port of the drainage pipe is located above the washing machine, and at this time, the drainage valve is opened and the drainage pump is closed, so that the washing water in the washing machine cannot be drained.
That is to say, under the condition of opening the drain valve and closing the drain pump, can judge the current drainage mode of washing machine according to the water level variation of washing machine for the user can adjust the drainage mode of washing machine according to the user demand in a flexible way, for example, change the lower drainage mode of washing machine into the upper drainage mode, so that the washing water in washing machine is left for other uses, or change the upper drainage mode of washing machine into the lower drainage mode, so that the power consumption is saved, various user demands of the user are satisfied, and then the user experience is improved.
In the above process, a conclusion for determining whether the current drainage mode of the washing machine is the upper drainage mode or the lower drainage mode is given through the setting of the preset water level variation threshold. The preset water level variation threshold may be flexibly adjusted and set according to an actual situation, for example, the preset water level variation threshold may be a minimum variation capable of determining whether the washing water level is reduced, or an experimental variation obtained by a person skilled in the art according to an experiment under a specific working condition, or an empirical variation obtained according to an experience, as long as a requirement for determining a current drainage mode of the washing machine determined by the preset water level variation threshold is satisfied.
In a preferred embodiment, after the step S2 of determining the current drainage mode of the washing machine according to the water level variation, if the current drainage mode is determined to be the lower drainage mode, the drainage control method further includes:
s31, acquiring the water level frequency variation of the washing machine in the process that the washing machine executes the drain operation again;
and S32, judging whether the current drainage mode of the washing machine is changed according to the water level frequency variation.
In step S31, a water level frequency threshold is obtained every preset time threshold during each time of performing a water discharge operation of the washing machine, and a water level frequency variation of the washing machine is determined by a difference between the water level frequency thresholds obtained in two adjacent times. The preset time threshold may be the shortest time during which the water level frequency variation can be changed, or 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 the person skilled in the art may flexibly adjust and set the time according to an actual situation.
In the step S32, in the process of performing the underdrain operation by the washing machine, if the floor drain of the use place of the washing machine is high, when the washing water level of the washing machine drops to a certain height, the drainage speed of the washing machine will be reduced, so that the water level frequency variation of the washing machine will be reduced, at this time, if the underdrain mode is continuously adopted, the washing water may not be drained completely, the washing machine will be dewatered with water, so that the washing machine generates a great noise, and the use experience of a user is reduced.
Preferably, the washing machine is provided with an upper drainage function key and a lower drainage function key, if the current drainage mode of the washing machine is a lower drainage mode, when the current drainage mode of the washing machine needs to be changed, the drainage mode of the washing machine can be changed by touching or pressing the upper drainage function key, so that the washing machine executes an upper drainage operation; if the current drainage mode of the washing machine is the upper drainage mode, when the current drainage mode of the washing machine needs to be changed, the drainage mode of the washing machine can be changed by touching or pressing a drainage function key, so that the washing machine can perform the lower drainage operation.
Preferably, the step of determining whether to change the current drainage mode of the washing machine according to the water level frequency variation in the step S32 specifically includes:
s321, judging whether the water level frequency variation is smaller than a preset frequency variation threshold;
s322, if the water level frequency variation is smaller than the preset frequency variation threshold, changing the current drainage mode of the washing machine, and enabling the washing machine to execute an upper drainage operation;
and S323, if the water level frequency variation is greater than or equal to the preset frequency variation threshold, not changing the current drainage mode of the washing machine, and enabling the washing machine to continuously execute the lower drainage operation.
In step S322, if the water level frequency variation is smaller than the preset frequency variation threshold, it indicates that the drainage speed of the washing machine is slowed, and if the lower drainage mode is continuously adopted, the washing water may not be drained completely, which may result in the washing machine dewatering with water, and thus the washing machine generates a large noise.
In step S323, if the water level frequency variation is greater than or equal to the preset frequency variation threshold, which indicates that the drainage speed of the washing machine is fast, the lower drainage mode is continuously adopted, and the washing water in the washing machine can be drained completely, and the current drainage mode of the washing machine does not need to be changed, so that the washing machine continues to perform the lower drainage operation.
In the process, the conclusion of judging whether the current drainage mode of the washing machine is changed or not is given through setting of the preset frequency variation threshold. The preset frequency variation threshold may be flexibly adjusted and set according to an actual situation, for example, the preset frequency variation threshold may be a minimum frequency variation for determining a reduction in the drainage speed of the washing machine, or an experimental frequency variation obtained by a person skilled in the art according to an experiment under a specific working condition, or an empirical frequency variation obtained according to an experience, as long as a requirement of determining whether to change the current drainage mode of the washing machine according to the preset frequency variation threshold is met.
In a preferred embodiment, after the step S2 of determining the current drainage mode of the washing machine according to the water level variation, the drainage control method further includes:
s41, acquiring geographical position information of the washing machine;
s42, judging whether the geographic position information changes;
s43, if the geographical position information is not changed, the operation of judging the current drainage mode of the washing machine is not executed;
and S44, if the geographical position information is changed, re-executing the operation of judging the current drainage mode of the washing machine.
In step S43, if the geographical location information is not changed, it indicates that the usage location of the washing machine is not changed, and the user of the washing machine is not changed, the user can determine the current drainage mode of the washing machine, and the operation of determining the current drainage mode of the washing machine is not performed without re-determining the current drainage mode of the washing machine.
In step S44, if the geographical location information changes, which indicates that the usage location of the washing machine has changed, the user using the washing machine may also have changed, and the new user does not determine the current drainage manner of the washing machine, the operation of determining the current drainage manner of the washing machine is executed again.
In order to accurately determine the geographical position information of the washing machine, the washing machine further comprises a GPS positioning module, and in step S41, the geographical position information of the washing machine can be acquired through the GPS positioning module, and whether the geographical position of the washing machine changes or not can be accurately determined according to the geographical position, so that accurate data is provided for whether the washing machine sends prompt information or not. Of course, the positioning module is not limited to the above-mentioned GPS positioning module, and may be other positioning modules, such as a positioning module of a mobile phone in communication connection with the washing machine, and the positioning module of the mobile phone in the same geographical position as the washing machine is used to position the geographical position of the mobile phone, and then the mobile phone is used to send the acquired geographical position to the washing machine, so that the geographical position of the washing machine can be determined.
In addition, in order to enable the washing machine to determine whether to transmit the prompt message according to the geographical location in the case where the washing machine reaches a new geographical location and cannot acquire the geographical location information, the user may input the geographical location, and the washing machine may determine the geographical location input by the user as the current geographical location of the washing machine.
It can be seen from the two embodiments that the geographic position of the washing machine can be the current geographic position acquired by the GPS positioning module, or the geographic position input by the user, and the manner of acquiring the geographic position information can be flexibly selected and set.
It should be further noted that, steps S41 to S44 may be executed after step S2 is executed, steps S41 to S44 may be executed after steps S31 to S32 are executed, steps S41 to S44 may be executed after step S2 is executed and before steps S31 to S32 are executed, and those skilled in the art may flexibly adjust and set the execution sequence of steps S41 to S44 according to the requirements.
Alternatively, after "determining whether the geographical location information is changed" at step S42, the drainage control method further includes:
s45, if the geographical position information is not changed, no prompt information is sent;
and S46, if the geographical position information is changed, sending prompt information to prompt a user to judge the current drainage mode of the washing machine again.
In step S45, if the geographical location information is not changed, it indicates that the usage location of the washing machine is not changed, and the user of the washing machine is not changed, the user can determine the current drainage mode of the washing machine, and does not need to re-determine the current drainage mode of the washing machine, and then does not send a prompt message.
In step S46, if the geographical location information changes, which indicates that the usage location of the washing machine has changed, and the user using the washing machine may also have changed, and the new user does not determine the current drainage manner of the washing machine, a prompt message is sent to prompt the user to re-determine the current drainage manner of the washing machine.
Preferably, the washing machine may send a prompt message in the form of voice, text, picture, light, etc. to prompt the user to re-judge the current drainage mode of the washing machine.
Referring now to fig. 2, fig. 2 is a flow chart of a method of controlling drainage in accordance with an embodiment of the present invention.
As shown in fig. 2, in a preferred embodiment, the complete flow of the drain control method of the washing machine of the present invention may be:
s11, opening a drain valve and closing a drain pump;
s12, acquiring the water level variation;
s21, judging whether the water level variation is larger than a preset water level variation threshold value or not;
s22, if yes, judging that the current drainage mode is a lower drainage mode;
s23, if not, judging that the current drainage mode is an upper drainage mode;
s31, acquiring the water level frequency variation of the washing machine in the process that the washing machine executes the drain operation again;
s321, judging whether the water level frequency variation is smaller than a preset frequency variation threshold;
s322, if yes, changing the current drainage mode of the washing machine to enable the washing machine to execute an upper drainage operation;
s323, if not, the current drainage mode of the washing machine is not changed, and the washing machine continues to perform the drainage operation;
after step S22 and step S23, step S41 is executed;
s41, acquiring geographical position information of the washing machine;
s42, judging whether the geographic position information changes;
s43, if not, the operation of judging the current drainage mode of the washing machine is not executed;
and S44, if so, re-executing the operation of judging the current drainage mode of the washing machine.
It should be noted that the above-mentioned embodiment is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and in practical applications, those skilled in the art may perform the above-mentioned function allocation by different steps, i.e. the steps in the embodiment of the present invention are further divided or combined as needed. 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.
Although not shown in the drawings, in another aspect, the present invention also provides a washing machine including a detection module for detecting a water level and a water level frequency of the washing machine, a positioning module, and a control module; the positioning module is used for determining the geographic position of the washing machine; the control module is used for judging whether to send prompt information according to the geographical position determined by the positioning module and executing the drainage control method according to the detection result of the detection module.
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 level and the water level frequency of the washing machine, and it should be noted that the detecting method of the water level and the water level frequency of the washing machine should not limit the present invention.
Preferably, the positioning module is a GPS positioning module or a positioning module of a mobile phone in communication connection with the washing machine, the geographical position of the mobile phone is positioned by the positioning module of the mobile phone in the same geographical position as the washing machine, and the acquired geographical position is sent to the washing machine by the mobile phone, so that the geographical position of the washing machine can be determined, and the current geographical position information of the washing machine can be acquired by any positioning module.
Preferably, the control module may be a control module of the washing machine itself, or may be an additional control module or other mobile terminals, which are not described herein again. In physical form, the control module may be any type of controller, such as a programmable controller, a combinational logic controller, and the like.
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 (6)

1. A drain control method for a washing apparatus, characterized by comprising the steps of:
acquiring the water level variation of the washing equipment;
judging the current drainage mode of the washing equipment according to the water level variation;
the step of determining the current drainage mode of the washing equipment according to the water level variation specifically includes:
judging whether the water level variation is larger than a preset water level variation threshold value or not;
if the water level variation is larger than the preset water level variation threshold, judging that the current drainage mode is a lower drainage mode;
if the water level variation is smaller than or equal to the preset water level variation threshold, judging that the current drainage mode is an upper drainage mode;
wherein the washing apparatus includes a drain valve for causing the washing apparatus to perform a drain operation;
the step of "obtaining the water level variation of the washing device" may specifically include:
acquiring the water level variation amount after the drain valve is opened;
wherein the washing apparatus further comprises a drain pump for causing the washing apparatus to perform an upper drain operation; the step of "acquiring the water level variation amount after opening the drain valve" specifically includes:
the water level variation amount is acquired after the drain valve is opened and the drain pump is closed.
2. The drain control method according to claim 1, wherein after the step of determining a current drain mode of the washing apparatus according to the amount of water level change, if it is determined that the current drain mode is a lower drain mode, the drain control method further comprises:
acquiring the water level frequency variation of the washing equipment in the process that the washing equipment performs the water draining operation again;
and judging whether to change the current drainage mode of the washing equipment according to the water level frequency variation.
3. The drain control method according to claim 2, wherein the step of determining whether to change the current drain manner of the washing apparatus according to the water level frequency variation specifically comprises:
judging whether the water level frequency variation is smaller than a preset frequency variation threshold value or not;
and if the water level frequency variation is smaller than the preset frequency variation threshold, changing the current drainage mode of the washing equipment, and enabling the washing equipment to execute an upper drainage operation.
4. The drain control method according to claim 3, wherein the step of determining whether to change the current draining manner of the washing apparatus according to the water level frequency variation further comprises:
and if the water level frequency variation is greater than or equal to the preset frequency variation threshold, not changing the current drainage mode of the washing equipment, and enabling the washing equipment to continuously execute the downward drainage operation.
5. The drain control method according to claim 1, wherein after the step of determining the current drain manner of the washing apparatus according to the water level variation, the drain control method further comprises:
acquiring geographical position information of the washing equipment;
judging whether the geographical position information changes or not;
and if the geographical position information is changed, re-executing the operation of judging the current drainage mode of the washing equipment.
6. The drain control method according to claim 5, wherein after the step of determining a current drain manner of the washing apparatus according to the water level variation, the drain control method further comprises:
and if the geographical position information is not changed, not executing the operation of judging the current drainage mode of the washing equipment.
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