Oil stain cleaning method and device, household appliance and computer readable storage medium

Abstract

The invention discloses an oil stain cleaning method and device, a household appliance and a computer readable storage medium, the oil stain cleaning method and device are applied to a range hood, the range hood comprises an impeller and a motor for driving the impeller to rotate, and the method comprises the steps that the motor is used for driving the impeller to rotate according to a preset rotating speed, and the current driving power of the motor is obtained; determining the current weight of the impeller based on the current driving power and the preset rotating speed; determining the weight of oil stains on the impeller according to the initial weight and the current weight of the impeller; the impeller is cleaned to different degrees according to the weight of oil dirt. According to the invention, the oil weight on the impeller can be obtained by combining the initial weight with the determined current weight of the impeller, so that the determination cost of the oil weight is reduced; the impeller is cleaned to different degrees according to the weight of oil dirt on the impeller, and the cleaning effect of the impeller is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of range hood control, and in particular to an oil stain cleaning method, device, household appliance and computer-readable storage medium. Background Art

[0002] As one of the modern kitchen appliances, range hoods have become a necessity in contemporary people's lives. However, after using the range hood for a period of time, the oil screen, impeller, volute and other parts will be covered with oil stains. Therefore, for users, the most headache-inducing problem is the cleaning of the range hood.

[0003] In the process of realizing the present invention, the inventors found that in the related art, a sensor is used to detect the oil pollution level of the range hood, and then the oil pollution is cleaned according to the detection result, which increases the cost and does not clean thoroughly. Summary of the invention

[0004] The present invention provides an oil stain cleaning method, a device, a household appliance and a computer-readable storage medium, which improve the cleaning strength of the oil stain and reduce the cleaning cost.

[0005] In a first aspect, the oil stain cleaning method provided by the present invention is applied to a range hood, wherein the range hood comprises an impeller and a motor driving the impeller to rotate, and the method comprises:

[0006] Using the motor to drive the impeller to rotate at a preset speed, and obtaining the current driving power of the motor;

[0007] determining a current weight of the impeller based on the current driving power and the preset rotation speed;

[0008] determining the weight of the oil stain on the impeller according to the initial weight of the impeller and the current weight;

[0009] The impeller is cleaned to different degrees according to the weight of the oil stain.

[0010] In a second aspect, the oil cleaning device provided by the present invention is applied to a range hood, wherein the range hood comprises an impeller and a motor driving the impeller to rotate, and the device comprises:

[0011] Determine a power module, which is used to drive the impeller to rotate at a preset speed using the motor, and obtain the current driving power of the motor;

[0012] a weight determination module, configured to determine a current weight of the impeller based on the current driving power and the preset rotation speed;

[0013] The weight determination module is further used to determine the weight of the oil stain on the impeller according to the initial weight and the current weight of the impeller;

[0014] The cleaning module is used to clean the impeller to different degrees according to the weight of the oil pollution.

[0015] In a third aspect, the household appliance provided by the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the oil stain cleaning method as described in any embodiment of the present invention is implemented.

[0016] In a fourth aspect, the present invention provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the oil stain cleaning method as described in any embodiment of the present invention is implemented.

[0017] The solution of the present invention can use the motor to drive the impeller to rotate at a preset speed and obtain the current driving power of the motor; determine the current weight of the impeller based on the current driving power and the preset speed; determine the weight of the oil stains on the impeller according to the initial weight and the current weight of the impeller; and clean the impeller to different degrees according to the weight of the oil stains. In this method, the weight of the oil stains on the impeller can be obtained based on the initial weight of the impeller combined with the determined current weight of the impeller, which reduces the cost of determining the weight of the oil stains; the impeller is cleaned to different degrees according to the weight of the oil stains on the impeller, which improves the cleaning effect of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The present invention provides a method for cleaning oil pollution. Figure 1 ;

[0020] Figure 2 The present invention provides a method for cleaning oil pollution. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the effect of an oil pollution cleaning system provided by the present invention;

[0022] Figure 4 It is a structural schematic diagram of the oil pollution cleaning device provided by the present invention;

[0023] Figure 5 It is a structural schematic diagram of the household appliance provided by the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present invention, the technical solution can be applied to cleaning oil stains in household appliances, for example, cleaning oil stains in range hoods. In the subsequent description, the technical solution of the present invention will be described by taking the cleaning scenario of oil stains in range hoods as an example, but it should be noted that the technical solution of the present invention can be applied not only to cleaning oil stains in range hoods, and this is not limited here.

[0027] like Figure 1 As shown, Figure 1 The present invention provides a method for cleaning oil pollution. Figure 1 The oil stain cleaning method provided by the present invention can be performed by the oil stain cleaning device provided by the present invention, and the device can be implemented in software and / or hardware. In a specific embodiment, the device can be integrated into a household appliance, and the household appliance can be a range hood, an integrated stove, etc. The following embodiments will be described by taking the oil stain cleaning device integrated into a household appliance as an example. Figure 1 The oil pollution cleaning method of this embodiment may specifically include the following steps:

[0028] S101, using a motor to drive an impeller to rotate at a preset speed, and obtaining a current driving power of the motor.

[0029] Specifically, the range hood at least includes an impeller and a motor driving the impeller to rotate, so the oil cleaning device can set a rotation speed, and use the motor to drive the impeller to rotate according to the set rotation speed to obtain the current driving power of the motor.

[0030] Specifically, before obtaining the current driving power of the motor, the oil cleaning device may also obtain the current working time and the most recent cleaning time of the impeller range hood, and set a time interval threshold; if the current working time schedule of the range hood proves that the range hood has just started to be used, then there is no need to clean the range hood; if the current working time schedule of the range hood proves that the range hood has been used for a period of time, then the most recent cleaning time is obtained, and if it has not been cleaned recently, the current working time of the range hood is compared with the time interval threshold, and if it is greater than the time interval threshold, the range hood is cleaned, and if it is less than the time interval threshold, the range hood is not cleaned. If the current working time schedule of the range hood proves that the range hood has been used for a period of time, and the most recent cleaning time is obtained, the current working time and the most recent cleaning time are subtracted to obtain the difference, and the difference is compared with the time interval threshold, and if the difference is greater than the time interval threshold, the range hood is cleaned, and if the difference is less than the time interval threshold, the range hood is not cleaned. Alternatively, two time interval thresholds can be set (not limited here). If the difference is less than the first time interval threshold, the range hood will not be cleaned; if the difference is greater than the second time interval threshold (the first time interval threshold is less than the second time interval threshold), the range hood will be directly heavily cleaned. If the difference is greater than the first time interval threshold and less than the second time interval threshold, the weight of the oil on the impeller can be judged based on the current weight of the impeller, and the degree of cleaning to be adopted for cleaning the impeller can be further determined by the weight of the oil.

[0031] S102: Determine the current weight of the impeller based on the current driving power and the preset rotation speed.

[0032] In this embodiment, the oil cleaning device can determine the current weight of the impeller based on the current driving power and the set rotation speed.

[0033] S103: Determine the weight of the oil stain on the impeller according to the initial weight and the current weight of the impeller.

[0034] Specifically, because the weight of the impeller will change after it is sticky with oil, the impeller can be kept running at the same speed after it is sticky with oil. The power required by the motor to drive the oil-sticky impeller is greater than the power required to drive a new impeller. Therefore, the weight of the impeller after it is sticky with oil (current weight) and the weight of the new impeller (initial weight) can be calculated based on the power at the same speed. Finally, the weight of the oil on the impeller can be obtained by subtracting the initial weight of the impeller from the current weight of the impeller.

[0035] Specifically, the oil cleaning device can calculate the current impeller weight based on the preset speed and the current driving power, and then use the current impeller weight and the initial weight of the impeller to calculate the weight of the oil, and then set a weight threshold; compare the weight of the oil with the weight threshold, if the weight of the oil is greater than the weight threshold, execute the next step to clean the oil on the impeller, if the weight of the oil is less than the weight threshold, the oil on the impeller will not be cleaned.

[0036] S104. Clean the impeller to different degrees according to the weight of the oil stain.

[0037] Specifically, the oil stain device can clean the impeller to different degrees according to the weight of the oil stain on the impeller. For example: if the weight of the oil stain on the impeller is light, the oil stain device may not clean the oil stain or clean it lightly. If the weight of the oil stain on the impeller is heavy, the oil stain device may add more detergent and clean the impeller for a long time. For example, in further refinement, multiple weight thresholds can be set. For example, 4 weight thresholds can be set (not limited here). If it is greater than the first weight threshold and less than the second weight threshold, the range hood is cleaned at the first level. If it is greater than the second weight threshold and less than the third weight threshold, the range hood is cleaned at the second level. If it is greater than the third weight threshold and less than the fourth weight threshold, the range hood is cleaned at the third level. If it is greater than the fourth threshold, the range hood is cleaned at the fourth level, and so on.

[0038] Specifically, after cleaning the oil stains on the current impeller, when the range hood impeller is cleaned for the next time after a period of time, according to S101 to S104, the driving power of the motor can be first determined by the preset speed, and then the current weight of the impeller is calculated by the preset speed and driving power. Finally, the weight of the oil stains is calculated according to the current weight and different degrees of cleaning are performed. The time interval between the cleaning time of the last impeller cleaning and the current working time of the impeller can also be obtained, and then the time interval is matched with the previous time interval. If the match is successful, the impeller is cleaned this time according to the cleaning degree of the last impeller. Exemplarily, in a first time period, a time interval is calculated based on the current working time and the last time of cleaning the impeller to obtain a first time interval; in a second time period, the current working time in the first time period is used as the last time of cleaning the impeller, and then a time interval is calculated based on the current working time and the last time of cleaning the impeller in the second time period to obtain a second time interval; in a third time period, the current working time in the second time period is used as the last time of cleaning the impeller, and then a time interval is calculated based on the current working time and the last time of cleaning the impeller in the third time period to obtain a fourth time interval; finally, when calculating the fifth time period, that is, when determining whether the current impeller needs to be cleaned, the current working time in the fourth time period is used as the last time of cleaning the impeller, and then the time interval between the last time of cleaning the impeller and the current impeller usage time in the fifth time period is calculated, and the time interval is compared with the first time interval, the second time interval, the third time interval and the fourth time interval respectively. If the time interval is equal to the first time interval, the level of impeller cleaning in the first time period is obtained. If the first level is used to clean the impeller, the first level is also used to clean the impeller in the fifth time period. If the time interval is not equal to the first time interval, the second time interval, the third time interval and the fourth time interval, the current weight of the current impeller is further calculated in combination with the impeller rotation speed and the current driving power, the oil pollution weight is calculated based on the current weight, and the appropriate level is selected to clean the impeller according to the oil pollution weight.

[0039] It can be understood that in the present invention, the motor is used to drive the impeller to rotate at a preset speed, and the current driving power of the motor is obtained; the current weight of the impeller is determined based on the current driving power and the preset speed; the weight of the oil stains on the impeller is determined according to the current weight of the impeller and the initial weight of the impeller; and finally, the impeller is cleaned to different degrees according to the weight of the oil stains. In the present invention, the weight of the oil stains on the impeller can be obtained according to the initial weight of the impeller combined with the determined current weight of the impeller, which reduces the cost of determining the weight of the oil stains; the impeller is cleaned to different degrees according to the weight of the oil stains on the impeller, which improves the cleaning effect of the impeller.

[0040] The oil stain cleaning method provided by the present invention is further described below. Figure 2 As shown, Figure 2 The present invention provides a method for cleaning oil pollution. Figure 2 The method may specifically include the following steps:

[0041] S201, comparing the usage of the range hood with a preset condition to obtain a comparison result.

[0042] Specifically, when cleaning the range hood, the oil cleaning device can first obtain the usage status of the range hood to determine whether the range hood can be used normally. If it can be used normally, the range hood can be cleaned, which can effectively save costs.

[0043] For example, you can judge by the noise of the range hood. First, check whether the fan impeller rotates normally. If the rotation resistance is too large, it will cause fan noise. You need to check whether the impeller bearing is damaged or deformed. If it needs to be replaced, you need to remove the fan for repair or replacement; then check whether there is any foreign matter inside the air duct that brakes the blade rotation. If there is a foreign matter in the air duct, you need to remove the air duct to clean or dredge the pipe; finally, check whether the fan installation position is flat. If the position is not flat, the fan will make noise when rotating. If the position needs to be changed, it needs to be disassembled and reinstalled; or, you can judge by "listening to the wind sound". Turn the air volume of the range hood to the maximum and listen to what kind of sound it makes. If it is a "whoosh" sound, it means that the range hood is normal. If it is other sounds, it means it is abnormal; or, by testing the suction force, turn the air volume of the range hood to the maximum, stick a newspaper at the air outlet, and see if the newspaper can be sucked. Then unplug the exhaust duct of the range hood and see if there is any difference in wind speed compared to the first time. If there is no difference, it means there is a problem with the range hood. If the difference is too big, it can be judged that the exhaust duct is blocked, and there is no restriction here.

[0044] S202: If the comparison result indicates that the range hood can be used normally, the range hood is cleaned.

[0045] In this embodiment, if various judgments indicate that the range hood can be used normally, the range hood is cleaned. If the judgment shows that the range hood is broken and cannot be used normally, ineffective cleaning of the range hood can be avoided.

[0046] S203: Using the motor to drive the impeller to rotate at a preset speed, and obtaining the current driving power of the motor.

[0047] Specifically, the range hood at least includes an impeller and a motor driving the impeller to rotate, so the oil cleaning device can set a rotation speed, and use the motor to drive the impeller to rotate according to the set rotation speed to obtain the current driving power of the motor.

[0048] S204: Convert the preset rotation speed into an angular velocity.

[0049] Specifically, the oil cleaning device converts the preset rotation speed into an angular velocity, which can be specifically converted by formula (1):

[0050]

[0051] In the above formula (1), w is the angular velocity and n is the preset rotation speed.

[0052] For example, when the electric control board controls the motor to drive the impeller to rotate at a fixed speed, such as 1440 r / h, n is 1440, which is substituted into formula (1) to obtain an angular velocity of 150.72 rad / s.

[0053] S205: If the motor is in normal condition, determine the current weight of the impeller based on the angular velocity and the current driving power.

[0054] Specifically, the oil cleaning device can first determine whether the motor itself is in a normal state. When the motor itself is in a normal state, after determining the angular velocity and the current driving power, the current weight of the impeller can be calculated by formula (2):

[0055]

[0056] In the above formula (2), m is the current weight of the impeller, r is the radius of the impeller, and p is the driving power.

[0057] S206: If the motor is leaking or aging, determine the current target driving power according to the current driving power and the preset driving power.

[0058] S207: Determine the current weight of the impeller according to the current target driving power and angular velocity.

[0059] Specifically, when the motor is leaking or aging, the current power generated by the motor driving the impeller to rotate at a preset speed is slightly larger than the actual value. Therefore, after determining that the motor is aging or leaking, the oil cleaning device can obtain the actual power, that is, the current target driving power, by making a difference between the current driving power and the preset driving power. After calculating the current target driving power, the current target driving power and the angular velocity are substituted into formula (2) to calculate the current weight. Among them, the preset driving power can be set by manual experience.

[0060] S208, obtaining the initial weight of the impeller;

[0061] Specifically, after the range hood is installed, when the range hood is powered on for the first time, the oil cleaning device can set the speed, use the motor to drive the impeller to rotate at the speed, and obtain the initial driving power of the motor, and then calculate the initial weight of the impeller based on the initial driving power and the preset speed. After obtaining the initial weight, each subsequent time the range hood is cleaned, the current weight of the range hood and the initial weight can be calculated to obtain the weight of the oil on the impeller, thereby improving the efficiency of judging the weight of the oil on the impeller. Alternatively, the oil cleaning device can also obtain the weight of the impeller after the last cleaning, and use the weight after the last cleaning as the initial weight of the impeller, thereby improving the accuracy of subsequent judgments on the weight of the oil on the impeller. Alternatively, the initial weight can also be directly read from the instruction manual corresponding to the range hood, which is not limited here.

[0062] In this embodiment, S208 can be obtained after S207 or before S203, and there is no limitation here.

[0063] S209: Determine the weight of the oil stain on the impeller according to the initial weight and the current weight of the impeller.

[0064] Specifically, the oil cleaning device can obtain the weight of the oil on the impeller by subtracting the current weight and the initial weight of the impeller.

[0065] S210, determining the degree of cleaning according to the weight of the oil stain.

[0066] Specifically, the oil stain device can clean the impeller to different degrees according to the weight of the oil stain on the impeller. For example, if the weight of the oil stain on the impeller is light, the oil stain device can not clean the oil stain or clean it lightly; if the weight of the oil stain on the impeller is heavy, the oil stain device can clean the impeller heavily.

[0067] S211, generating prompt information based on the cleaning degree.

[0068] Specifically, when the extent to which the range hood should be cleaned is determined, a prompt message may be generated to prompt the user whether to clean it immediately.

[0069] For example, a button can be set on the range hood to remind the user whether to clean immediately by flashing the button, or by sending a text message, or by the range hood alarm, which is not limited here. This avoids the inconvenience caused by the user directly cleaning the range hood at an inappropriate time, such as when cooking, and reminds the user whether to clean in the form of a text message, so that the user can directly log in to the corresponding APP of the terminal and send a cleaning instruction to the oil cleaning device, so that the oil cleaning device cleans the impeller in response to the cleaning instruction, avoiding the limitation of location and improving the timeliness of impeller cleaning.

[0070] S212, cleaning the impeller according to the cleaning instruction received in response to the prompt information; the cleaning instruction is generated by the user's operation on the range hood.

[0071] Specifically, after receiving the prompt information, the user can directly press the prompt button to clean, and the oil cleaning device cleans the impeller according to the cleaning instruction received in response to the prompt information; or the user can send a cleaning instruction on the terminal, and the oil cleaning device cleans the range hood in response to the cleaning instruction. There is no limitation here.

[0072] S213, obtaining oil pollution parameters of the impeller after cleaning.

[0073] S214, comparing the oil pollution parameter with a preset oil pollution parameter threshold, if the oil pollution parameter is greater than the preset oil pollution parameter threshold, cleaning the impeller again.

[0074] Specifically, after the oil pollution cleaning device cleans the impeller according to the oil pollution weight obtained above, the oil pollution parameter of the impeller after cleaning is obtained, and the oil pollution parameter can characterize the cleaning effect of the impeller after cleaning. The oil pollution parameter is compared with a preset oil pollution parameter threshold. If the oil pollution parameter is greater than the preset oil pollution parameter threshold, it indicates that the impeller was not cleaned thoroughly in the previous round of cleaning process, so the impeller can be cleaned again.

[0075] Specifically, when the impeller is cleaned again, the degree of cleaning of the impeller can be selected according to the difference between the oil pollution parameter and the preset oil pollution parameter threshold. When the difference is small, light cleaning can be performed, and when the difference is large, heavy cleaning can be performed. When the oil pollution parameter is greater than the preset oil pollution parameter threshold, the impeller can be directly cleaned conventionally, and there is no limitation here.

[0076] It can be understood that in this embodiment, before cleaning the range hood, it is first determined whether the range hood can be used normally. If the range hood is normal, subsequent cleaning is performed. If the range hood can no longer be used normally, it is not cleaned, thereby avoiding ineffective cleaning of the range hood; the driving power of the motor is determined based on the preset speed, the current weight of the range hood impeller is calculated according to the preset speed and driving power, and the oil weight of the impeller is determined according to the current weight of the impeller and the initial weight of the impeller, thereby reducing the cost of determining the oil weight of the impeller, and cleaning the impeller to different degrees according to the oil weight on the impeller, thereby improving the cleaning effect of the impeller. When cleaning the impeller, a prompt message is generated to prompt the user whether to clean it, and the impeller is cleaned when the user's cleaning instruction is received, thereby avoiding inconvenience caused to the user by the cleaning of the impeller. After the impeller is cleaned, the oil parameter of the impeller is obtained again, and the oil parameter is compared with the preset oil parameter threshold to determine whether to clean the impeller for the second time, thereby further improving the cleaning effect of the impeller.

[0077] The oil stain cleaning method of the present invention is described below with a specific scenario, specifically: when the range hood needs to be cleaned after a period of time, first determine whether the range hood can be used normally by the noise, suction test or "listening to the wind" of the range hood. If the range hood is broken, there is no need to clean it; if the range hood can be used normally, the electronic control board controls the motor to drive the impeller to rotate at a fixed speed, such as 1440r / h, and records the actual power P of the motor at this time. 1440r / h is substituted into formula (1) to calculate the angular velocity, and the angular velocity is 150.72rad / s; determine the radius A of the impeller, and substitute the radius A of the impeller, the actual power P of the motor and the angular velocity 150.72rad / s into formula (2) to calculate the current weight of the impeller. Then, the initial weight of the impeller is obtained, which may be the weight of the impeller used for the first time, or the weight of the impeller after the last cleaning; when the weight of the impeller is used for the first time, it can be directly obtained from the manual of the range hood, or after the range hood is installed, when it is powered on for the first time, the electric control board controls the motor to drive the impeller to rotate at the above-mentioned preset speed of 1440r / h, and the corresponding power of the motor is recorded for the first time; the preset speed is converted into an angular velocity, and the initial weight is calculated according to the corresponding power and angular velocity. The current impeller weight and the initial weight are subtracted to obtain the weight of the oil stain on the impeller, and different cleaning levels are selected according to the weight of the oil stain on the impeller; finally, a prompt message is generated to the user during cleaning (it can be in the form of a flashing button, or in the form of a text message prompt, or in the form of a warning to prompt the user, which is not limited here), to prompt the user whether to clean immediately. After receiving the prompt message, the user performs corresponding operations on the terminal or the range hood to generate a cleaning instruction and send it to the oil stain cleaning device. When the oil stain cleaning device receives the cleaning instruction in response to the prompt message, the impeller is cleaned. The oil pollution parameters of the cleaned impeller are obtained, and the obtained oil pollution parameters are compared with the preset oil pollution parameter threshold. When the oil pollution parameter is greater than the preset oil pollution parameter threshold, the impeller is cleaned again.Or, obtain the current working time of the impeller range hood. If the current working time schedule of the range hood proves that the range hood has just started to be used, there is no need to clean the range hood; if the current working time schedule of the range hood proves that the range hood has been used for a period of time, then obtain the most recent cleaning time, subtract the current working time from the most recent cleaning time to obtain the difference, set the time interval threshold, if the difference is less than the time interval threshold, the range hood is not cleaned, if the difference is greater than the time interval threshold, then the current impeller weight and the initial weight are subtracted to obtain the weight of the oil on the impeller, and different cleaning levels are selected according to the weight of the oil on the impeller; finally, generate a prompt message to the user during cleaning (it can be in the form of a flashing button, or in the form of a text message prompt, or in the form of a warning to prompt the user, which is not limited here) to prompt the user whether to clean immediately. After receiving the prompt message, the user performs corresponding operations on the terminal or the range hood to generate a cleaning instruction and send it to the oil cleaning device. When the oil cleaning device receives the cleaning instruction in response to the prompt message, it cleans the impeller. Or, obtain the current working time of the impeller range hood. If the current working time schedule of the range hood proves that the range hood has just started to be used, there is no need to clean the range hood. If the current working time schedule of the range hood proves that the range hood has been used for a period of time, obtain the most recent cleaning time, subtract the current working time from the most recent cleaning time to obtain the difference, set the time interval threshold, if the difference is less than the time interval threshold, do not clean the range hood, if the difference is greater than the time interval threshold, compare the time interval with the first time interval, the second time interval, the third time interval and the fourth time interval mentioned in S104, if the time interval is equal to the first time interval, obtain the level of cleaning the impeller within the first time period, if the first level is used to clean the impeller, then the current impeller is also cleaned using the first level. If the time interval is not equal to the first time interval, the second time interval, the third time interval and the fourth time interval, the current weight of the current impeller is further calculated in combination with the impeller rotation speed and the current driving power, the oil pollution weight is calculated based on the current weight and the initial weight of the impeller, and the appropriate level is selected to clean the impeller according to the oil pollution weight.

[0078] It can be understood that in this embodiment, before cleaning the range hood, it is first determined whether the range hood can be used normally. If the range hood is normal, subsequent cleaning is performed. If the range hood can no longer be used normally, it is not cleaned, thereby avoiding ineffective cleaning of the range hood; the driving power of the motor is determined based on the preset speed, the current weight of the range hood impeller is calculated according to the preset speed and driving power, and the oil weight of the impeller is determined according to the current weight of the impeller and the initial weight of the impeller, thereby reducing the cost of determining the oil weight of the impeller, and the impeller is cleaned to different degrees according to the oil weight on the impeller, thereby improving the cleaning effect of the impeller. When cleaning the impeller, a prompt message is generated to prompt the user whether to clean it, and the impeller is cleaned when the user's cleaning instruction is received, thereby avoiding inconvenience caused to the user by the cleaning of the impeller. When the oil parameter of the cleaned impeller is obtained, the obtained oil parameter is compared with the preset oil parameter threshold, and when the oil parameter is greater than the preset oil parameter threshold, the impeller is cleaned again, thereby further improving the cleaning effect of the impeller. Or after determining that the range hood can be used normally, first determine whether to clean the impeller based on the time interval between the current use time and the last time the impeller was cleaned, to avoid subsequent invalid judgments on whether the impeller needs to be cleaned. At the same time, when cleaning the impeller next time, obtain the time interval between the next current use time and the last time the impeller was cleaned, match the time interval with multiple time intervals in the previous multiple stages, and when the match is successful, directly use the successfully matched cleaning level to clean the impeller, thereby improving the cleaning efficiency of the impeller.

[0079] like Figure 3 As shown, Figure 3 It is a schematic diagram of the effect of an oil cleaning system provided by the present invention. Figure 3 In the invention, the oil pollution system includes a control board, a power board, a motor and an impeller. The oil pollution system controls the power board through the electronic control board to power on so that after the range hood is turned on, the motor is controlled to drive the impeller to rotate at a preset speed, the driving power of the motor is obtained, the current weight of the impeller is further calculated, and finally the weight of the oil pollution on the impeller is calculated.

[0080] Figure 4 Schematic diagram of the structure of the oil cleaning device provided by the present invention. Figure 4 As shown, the device may specifically include:

[0081] A power determination module 401 is used to drive the impeller to rotate at a preset speed using the motor and obtain the current driving power of the motor;

[0082] A weight determination module 402, configured to determine a current weight of the impeller based on the current driving power and the preset rotation speed;

[0083] The weight determination module 402 is further used to determine the weight of the oil stain on the impeller according to the initial weight and the current weight of the impeller;

[0084] The cleaning module 403 is used to clean the impeller to different degrees according to the weight of the oil pollution.

[0085] In one embodiment, the weight determination module 402 is specifically configured to:

[0086] Converting the preset rotation speed into an angular velocity;

[0087] If the motor itself is in a normal state, the current weight of the impeller is determined based on the angular velocity and the current driving power.

[0088] If the motor leaks electricity or ages, the current weight of the impeller is determined according to the angular velocity, the current driving power and the preset driving power.

[0089] In one embodiment, the weight determination module 402 is specifically configured to:

[0090] Determining the current target driving power according to the current driving power and the preset driving power;

[0091] The current weight of the impeller is determined according to the current target driving power and the angular velocity.

[0092] In one embodiment, the weight determination module 402 is specifically configured to:

[0093] When the range hood is powered on for the first time, the motor is used to drive the impeller to rotate at a preset speed, and the initial driving power of the motor is obtained;

[0094] An initial weight of the impeller is determined based on the initial driving power and the preset rotation speed.

[0095] The oil cleaning device provided by the present invention further includes a judgment module, which is specifically used to:

[0096] Comparing the usage of the range hood with the preset conditions to obtain a comparison result;

[0097] If the comparison result indicates that the range hood can be used normally, the range hood is cleaned.

[0098] In one embodiment, the cleaning module 403 is specifically used for:

[0099] Determining the degree of cleaning according to the weight of the oil stain;

[0100] generating prompt information based on the cleaning degree;

[0101] The impeller is cleaned according to a cleaning instruction received in response to the prompt information; the cleaning instruction is generated by a user's operation on the range hood.

[0102] In one embodiment, the cleaning module 403, after cleaning the impeller to different degrees according to the weight of the oil pollution, is specifically used to:

[0103] Obtaining oil pollution parameters of the impeller after cleaning;

[0104] The oil pollution parameter is compared with a preset oil pollution parameter threshold value. If the oil pollution parameter is greater than the preset oil pollution parameter threshold value, the impeller is cleaned again.

[0105] The device of the present invention can use a motor to drive the impeller to rotate at a preset speed and obtain the current driving power of the motor; determine the current weight of the impeller based on the current driving power and the preset speed; determine the weight of the oil stains on the impeller according to the initial weight and current weight of the impeller; and clean the impeller to different degrees according to the weight of the oil stains. In this method, the weight of the oil stains on the impeller can be obtained based on the initial weight combined with the determined current weight of the impeller, reducing the cost of determining the weight of the oil stains; the impeller is cleaned to different degrees according to the weight of the oil stains on the impeller, improving the cleaning effect of the impeller.

[0106] The present invention also provides a household appliance, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the oil stain cleaning method provided in any of the above embodiments is implemented.

[0107] The present invention also provides a computer-readable medium on which a computer program is stored. When the program is executed by a processor, the oil stain cleaning method provided by any of the above embodiments is implemented.

[0108] Reference below Figure 5 , which shows a schematic diagram of the structure of a computer system 500 suitable for implementing the household appliance of the present invention. Figure 5 The household electrical appliance shown is only an example and should not bring any limitation to the function and scope of use of the present invention.

[0109] like Figure 5As shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a storage part 508 into a random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the computer system 500 are also stored. The CPU 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0110] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed, so that a computer program read therefrom is installed into the storage section 508 as needed.

[0111] In particular, according to the embodiments disclosed in the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 509, and / or installed from the removable medium 511. When the computer program is executed by the central processing unit (CPU) 501, the above-mentioned functions defined in the system of the present invention are executed.

[0112] It should be noted that the computer-readable medium shown in the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0113] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0114] The modules and / or units described in the present invention may be implemented in software or hardware. The modules and / or units described may also be arranged in a processor. For example, it may be described as follows: a processor includes a power determination module, a weight determination module, and a cleaning module. The names of these modules do not, in some cases, limit the modules themselves.

[0115] As another aspect, the present invention further provides a computer-readable medium, which may be included in the device described in the above embodiment; or may exist independently without being assembled into the device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by a device, the device includes:

[0116] Using the motor to drive the impeller to rotate at a preset speed, and obtaining the current driving power of the motor;

[0117] determining a current weight of the impeller based on the current driving power and the preset rotation speed;

[0118] determining the weight of the oil stain on the impeller according to the initial weight of the impeller and the current weight;

[0119] The impeller is cleaned to different degrees according to the weight of the oil stain.

[0120] In the scheme of the present invention, the motor can be used to drive the impeller to rotate at a preset speed, and the current driving power of the motor can be obtained; the current weight of the impeller can be determined based on the current driving power and the preset speed; the weight of the oil stains on the impeller can be determined based on the initial weight and the current weight of the impeller; and the impeller can be cleaned to different degrees based on the weight of the oil stains. In this method, the weight of the oil stains on the impeller can be obtained based on the initial weight combined with the determined current weight of the impeller, which reduces the cost of determining the weight of the oil stains; the impeller is cleaned to different degrees based on the weight of the oil stains on the impeller, which improves the cleaning effect of the impeller.

[0121] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0122] It should be noted that the collection, collection, updating, analysis, processing, use, transmission, storage and other aspects of user personal information involved in the technical solution of this disclosure are in compliance with the provisions of relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. Necessary measures are taken for user personal information to prevent illegal access to user personal information data and maintain the security of user personal information, network security and national security.

[0123] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for cleaning oil pollution, characterized in that: Applied to a range hood, the range hood comprises an impeller and a motor for driving the impeller to rotate, and the method comprises: Using the motor to drive the impeller to rotate at a preset speed, and obtaining the current driving power of the motor; determining a current weight of the impeller based on the current driving power and the preset rotation speed; determining the weight of the oil stain on the impeller according to the initial weight of the impeller and the current weight; The impeller is cleaned to different degrees according to the weight of the oil stain.

2. The method according to claim 1, characterized in that The determining the current weight of the impeller based on the current driving power and the preset rotation speed comprises: converting the preset rotation speed into an angular velocity; If the state of the motor itself is normal, determining the current weight of the impeller based on the angular velocity and the current driving power; If the motor leaks electricity or ages, the current weight of the impeller is determined according to the angular velocity, the current driving power and the preset driving power.

3. The method according to claim 2, characterized in that The determining the current weight of the impeller according to the angular velocity, the current driving power and the preset driving power comprises: Determining the current target driving power according to the current driving power and the preset driving power; The current weight of the impeller is determined according to the current target driving power and the angular velocity.

4. The method according to claim 2, characterized in that: Before determining the weight of the oil pollution on the impeller according to the initial weight and the current weight of the impeller, the method further includes: When the range hood is powered on for the first time, the motor is used to drive the impeller to rotate at the preset speed, and the initial driving power of the motor is obtained; An initial weight of the impeller is determined based on the initial driving power and the preset rotation speed.

5. The method according to claim 1, characterized in that Before using the motor to drive the impeller to rotate at a preset speed and obtaining the current driving power of the motor, the method further includes: Comparing the usage of the range hood with the preset conditions to obtain a comparison result; If the comparison result indicates that the range hood can be used normally, the range hood is cleaned.

6. The method according to claim 1, characterized in that The step of cleaning the impeller to different degrees according to the weight of the oil pollution comprises: Determining the degree of cleaning according to the weight of the oil stain; generating prompt information based on the cleaning degree; The impeller is cleaned according to a cleaning instruction received in response to the prompt information; the cleaning instruction is generated by a user's operation on the range hood.

7. The method according to claim 1, characterized in that After the impeller is cleaned to different degrees according to the weight of the oil pollution, the method further comprises: Obtaining oil pollution parameters of the impeller after cleaning; The oil pollution parameter is compared with a preset oil pollution parameter threshold value. If the oil pollution parameter is greater than the preset oil pollution parameter threshold value, the impeller is cleaned again.

8. An oil cleaning device, characterized in that: Applied to a range hood, the range hood comprises an impeller and a motor for driving the impeller to rotate, and the device comprises: Determine a power module, which is used to drive the impeller to rotate at a preset speed using the motor, and obtain the current driving power of the motor; a weight determination module, configured to determine a current weight of the impeller based on the current driving power and the preset rotation speed; The weight determination module is further used to determine the weight of the oil stain on the impeller according to the initial weight and the current weight of the impeller; The cleaning module is used to clean the impeller to different degrees according to the weight of the oil pollution.

9. A household appliance comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the oil stain cleaning method as described in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the oil stain cleaning method as described in any one of claims 1 to 7 is implemented.

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