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

Abstract

The oil stain cleaning method and device, the household appliance and the computer readable storage medium are applied to a range hood, and the oil stain cleaning method comprises the steps that a motor is used for driving an impeller to reversely rotate for multiple times according to a preset progressive increase rotating speed, and a weight sensor is used for detecting the weight of the impeller during rotation every time to obtain multiple detected weights of the impeller; determining the adhesive force of the oil stain on the impeller to the impeller based on the plurality of detection weights; if the adhesion force is smaller than the preset value, determining the weight of oil stains on the impeller based on the multiple detection weights and the initial weight of the impeller; and the impeller is cleaned to different degrees based on the oil dirt weight. In the invention, the motor drives the impeller to reversely rotate for multiple times, so that the influence of the generated wind on the measurement of the weight of the impeller by the weight sensor is reduced. The weight of the impeller is measured in the rotating process of the impeller, and the influence of oil stain adhesive force on the weight of the impeller is avoided. The impeller is cleaned to different degrees after the viscous force of the oil dirt to the impeller is compared with the preset value, and the impeller cleaning mode is optimized.

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, the range hood has become a necessity in the lives of modern people. However, after the range hood has been used for a long time, a lot of grease will accumulate on the impeller, causing the load of the range hood to increase. Excessive grease in the oil storage tank will block the oil outlet of the purifier, gradually overflow and penetrate, causing oil leakage in the purifier. Therefore, in order not to affect the function of the range hood and cause a lot of economic losses such as personal injury, it is necessary to remove the grease from the range hood regularly.

[0003] In the related art, the oil stains in the range hood are judged by the running time of the range hood, and the obtained weight of the oil stains on the impeller is inaccurate, making it impossible to select a suitable oil stain removal method to clean the oil stains on the impeller, further resulting in the range hood not being cleaned properly. 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 can accurately determine the weight of the oil stain on the impeller and optimize the oil stain removal method.

[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 in the reverse direction multiple times at a preset increasing speed, and using a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller;

[0007] Determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights;

[0008] If the adhesion force is less than a preset value, determining the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller;

[0009] The impeller is cleaned to different degrees based on the weight of the oil pollution.

[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] A detection module, used to use the motor to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed, and use a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller;

[0012] A determination module, configured to determine the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights;

[0013] The determination module is further configured to determine the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller if the adhesive force is less than a preset value;

[0014] A cleaning module is used to clean the impeller to different degrees based on 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 in the reverse direction for multiple times at a preset increasing speed, and use a weight sensor to detect the weight of the impeller at each rotation to obtain multiple detection weights of the impeller; determine the adhesion of the oil on the impeller to the impeller based on the multiple detection weights; if the adhesion is less than the preset value, determine the weight of the oil on the impeller based on the multiple detection weights and the initial weight of the impeller; and clean the impeller to different degrees based on the weight of the oil. In this method, the motor is used to drive the impeller to rotate in the reverse direction for multiple times to reduce the influence of the generated wind on the weight of the impeller measured by the weight sensor. The weight sensor measures the weight of the impeller during the rotation of the impeller, effectively avoiding the influence of the adhesion of the oil on the weight of the impeller. By comparing the adhesion of the oil to the impeller with the preset value and then cleaning the impeller to different degrees, the impeller cleaning method is optimized. 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 1The 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 the impeller to rotate in the reverse direction for multiple times at a preset increasing speed, and using a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller.

[0029] Specifically, the range hood includes at least an impeller and a motor for driving the impeller to rotate, and the motor can be used to drive the impeller to rotate in the opposite direction multiple times at a preset increasing speed. During the rotation of the impeller, a weight sensor is used to detect the weight of the impeller to obtain multiple detected weights of the impeller. The increasing speed can be increased at equal intervals or at unequal intervals.

[0030] For example, the number of rotations can be set to 5. The first time the motor drives the impeller to reverse at a uniform speed of 5 rpm, the weight of the impeller is detected by a weight sensor during the rotation of the impeller. The second time the motor drives the impeller to reverse at a uniform speed of 5+1 rpm, the weight of the impeller is detected by a weight sensor during the rotation of the impeller, until the fifth time the motor drives the impeller to reverse at a uniform speed of 5+5 rpm, the weight of the impeller is detected by a weight sensor during the rotation of the impeller, and thus 5 impeller weights at different speeds are obtained. Alternatively, the first time the motor drives the impeller to reverse at a uniform speed of 5 rpm, the second time it can rotate at a speed of 5+1 rpm, and the third time it can rotate at a speed of 5+3 rpm. When the rotation speed is higher, the centrifugal force of the impeller is greater, which can effectively overcome the adhesion of oil to the impeller, and the impeller weight measured by the sensor is more accurate.

[0031] S102: Determine the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights.

[0032] In the present invention, the adhesion of the oil on the impeller will affect the weight of the impeller measured by the weight sensor installed on the rotating shaft, so the adhesion of the oil on the impeller to the impeller can be determined by multiple detection weights, and then the size of the adhesion can be used to determine whether the final weight of the impeller can be calculated using the impeller weight measured by the weight sensor.

[0033] S103: If the adhesive force is less than a preset value, the weight of the oil stain on the impeller is determined based on a plurality of detected weights and an initial weight of the impeller.

[0034] Specifically, a preset value is set, and the adhesion of the oil to the impeller is compared with the preset value. If the adhesion is less than the preset value, it proves that the adhesion of the oil at this time has little effect on the impeller weight measured by the weight sensor installed on the rotating shaft, and the adhesion of the oil to the impeller has been effectively overcome. At this time, the impeller weight measured by the weight sensor is more accurate, so the weight of the oil on the impeller can be determined based on multiple detection weights and the initial weight of the impeller.

[0035] S104. Clean the impeller to different degrees based on the weight of the oil pollution.

[0036] Specifically, the impeller can be cleaned 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 may not be cleaned or may be lightly cleaned. If the weight of the oil stain on the impeller is heavy, more detergent may be added and the impeller may be cleaned for a long time. For example, the cleaning degree may be further determined for the impeller, and four weight thresholds may be set (not limited here). If the weight is greater than the first weight threshold and less than the second weight threshold, the range hood is cleaned at the first level. If the weight is greater than the second weight threshold and less than the third weight threshold, the range hood is cleaned at the second level. If the weight is greater than the third weight threshold and less than the fourth weight threshold, the range hood is cleaned at the third level. If the weight is greater than the fourth threshold, the range hood is cleaned at the fourth level, and so on.

[0037] It can be understood that in the present invention, a motor is used to drive the impeller to rotate in the reverse direction for multiple times at a preset increasing speed, and a weight sensor is used to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller; the adhesion of the oil on the impeller to the impeller is determined based on the multiple detection weights; if the adhesion is less than the preset value, the weight of the oil on the impeller is determined based on the multiple detection weights and the initial weight of the impeller; and the impeller is cleaned to different degrees based on the weight of the oil. This method uses a motor to drive the impeller to rotate in the reverse direction for multiple times, reducing the influence of the generated wind on the weight of the impeller measured by the weight sensor. The weight sensor measures the weight of the impeller during the rotation of the impeller, effectively avoiding the influence of the adhesion of the oil on the weight of the impeller. The adhesion of the oil on the impeller is compared with the preset value. If the adhesion is less than the preset value, the range hood can be automatically cleaned to achieve the effect of removing the oil, thereby optimizing the impeller cleaning method.

[0038] 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:

[0039] S201, comparing the usage of the range hood with a preset condition to obtain a comparison result.

[0040] Specifically, when cleaning the range hood, you 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, you can clean the range hood, which can effectively save costs.

[0041] 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.

[0042] S202: If the comparison result shows that the range hood can be used normally, the range hood is cleaned.

[0043] In the present invention, 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.

[0044] S203: Determine the initial rotation speed and maximum rotation speed of the impeller.

[0045] S204: Determine a preset incremental speed according to the initial speed and the maximum speed.

[0046] Specifically, the initial speed and maximum speed of the impeller can be set, and then the preset incremental speed can be determined according to the initial speed and the maximum speed. Among them, the incremental speed can be increased according to the equal interval value, or according to the unequal interval value. Exemplarily, the initial speed can be set to 5 rpm, the maximum speed can be set to 30 rpm, the first time the motor drives the impeller to reverse at a uniform speed of 5 rpm, the second time the motor drives the impeller to reverse at a uniform speed of 5+1 rpm, the third time the motor drives the impeller to reverse at a uniform speed of 5+2 rpm, or the second time the motor drives the impeller to reverse at a uniform speed of 5+2 rpm, the third time the motor drives the impeller to reverse at a uniform speed of 5+5 rpm, and there is no limitation here.

[0047] S205, using a motor to drive the impeller to rotate in the reverse direction for multiple times at a preset increasing speed, and using a weight sensor to detect the weight of the impeller during each rotation to obtain multiple detection weights of the impeller.

[0048] Specifically, a motor can be used to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed. During the rotation of the impeller, a weight sensor is used to detect the weight of the impeller each time the impeller rotates, thereby obtaining multiple detected weights of the impeller.

[0049] In the present invention, when the range hood is used for a long time, the motor may leak or age. When this happens, a difference can be set based on manual experience. After the weight sensor detects the weight of the impeller at each rotation, the actual weight of the impeller is obtained using the difference and the weight of the impeller.

[0050] S206: Subtract the last detected weight from the first detected weight among the multiple detected weights to obtain a weight difference.

[0051] S207, determining the adhesive force according to the weight difference.

[0052] Specifically, the impeller is driven by a motor to rotate in the reverse direction multiple times at a preset increasing speed. During the rotation of the impeller, the weight of the impeller is detected by a weight sensor after each rotation of the impeller to obtain multiple detection weights of the impeller. The weight difference is obtained by subtracting the last detection weight from the first detection weight among the multiple detection weights. The weight difference is used to determine whether the adhesion of oil to the impeller is effectively overcome during the rotation process, or the last detection weight from the previous detection weight among the multiple detection weights can be subtracted, and the difference between two adjacent detection weights can be used to determine whether the adhesion of oil to the impeller is effectively overcome.

[0053] S208: If the adhesive force is less than a preset value, determine an average value of multiple detection weights.

[0054] In the present invention, if the adhesion force is less than the preset value, it proves that the adhesion force of the oil at this time has little effect on the impeller weight measured by the weight sensor installed on the rotating shaft, and the adhesion of the oil to the impeller has been effectively overcome. The impeller weight measured by the weight sensor is also more accurate, so the average value of multiple detection weights can be calculated and the average value can be used as the final weight of the impeller.

[0055] For example, if the number of reverse rotations is set to 5, the first time, i.e., the initial speed is 5 rpm, the impeller is driven to reverse at a uniform speed, and the impeller weight measured by the weight sensor during the rotation of the impeller is X1, the second time, i.e., the initial speed is 5+1 rpm, the impeller is driven to reverse at a uniform speed, and the impeller weight measured is X2, the third time, i.e., the initial speed is 5+2 rpm, the impeller is driven to reverse at a uniform speed, and the impeller weight measured is X3, the fourth time, i.e., the initial speed is 5+3 rpm, the impeller is driven to reverse at a uniform speed, and the impeller weight measured is X4, the fifth time, i.e., the initial speed is 5+4 rpm, the impeller is driven to reverse at a uniform speed, and the impeller weight measured is X5. The average value of the impeller weights obtained for the 5 times is calculated as: (X1+X2+X3+X4+X5) / 5 to obtain the average value, and the average value can be used as the final weight of the impeller.

[0056] S209, subtract the initial weight from the average value to obtain the weight of the oil pollution.

[0057] In the present invention, the initial weight may be the weight of the impeller when the range hood is powered on for the first time, and the weight of the oil stain on the impeller may be obtained by subtracting the initial weight from the average value of multiple detected weights. The initial weight may be directly read from the manual of the range hood, or, when the range hood is powered on for the first time, the impeller is driven by a motor to rotate at a preset constant speed, and the driving power of the motor is obtained, and then the initial weight of the impeller is calculated based on the driving power and the preset speed, and there is no limitation here.

[0058] In this embodiment, if this impeller cleaning is not the first cleaning, the weight of the impeller after the last cleaning can also be obtained, and the weight after the last cleaning can be used as the initial weight of the impeller. Then, the average value of the determined multiple detection weights and the weight after the last cleaning are subtracted to obtain the oil weight of the impeller.

[0059] S210, determining the number of cleaning times and cleaning time of the impeller according to the weight of the oil pollution.

[0060] S211, cleaning the impeller based on the number of cleaning times and the cleaning time.

[0061] Specifically, after obtaining the weight of the oil stain on the impeller, the number of cleaning times and the cleaning time of the impeller can be determined according to the weight of the oil stain on the impeller. Alternatively, the amount of cleaning agent for the impeller can be determined according to the weight of the oil stain on the impeller. When determining the number of cleaning times and the cleaning time, multiple oil stain weight intervals can be set, each of which has a corresponding cleaning time and number of cleaning times, and the impeller can be cleaned according to the determined number of cleaning times and cleaning times.

[0062] Exemplarily, the oil pollution weight is set in kg. If the set oil pollution weight interval is [0.1, 0.6], (0.6, 1], (1, 1.5], etc., the impeller cleaning number corresponding to [0.1, 0.6] is 1 time, and the cleaning time is 20 seconds, the impeller cleaning number corresponding to (0.6, 1] is 2 times, and the cleaning time is 30 seconds, and the impeller cleaning number corresponding to (1, 1.5] is 3 times, and the cleaning time is 60 seconds. If the determined impeller oil pollution weight is 0.6, the impeller is cleaned once, and the cleaning time is 20 hours.

[0063] S212: If the adhesion force is not less than the preset value, the rotation speed of the impeller when it rotates in the reverse direction for the last time is obtained.

[0064] S213: If the rotation speed during the last rotation is not less than the maximum rotation speed, the user is prompted to clean the impeller.

[0065] Specifically, if the adhesion of the oil on the impeller to the impeller is greater than or equal to the preset value, it proves that the adhesion of the oil has a greater impact on the weight of the impeller measured by the weight sensor installed on the rotating shaft. The weight of the impeller can no longer be accurately detected by the weight sensor, and at this time there is more oil on the impeller, so the speed of the impeller when it last rotated can be obtained, and the speed of the last rotation obtained can be compared with the maximum speed. If it is greater than the maximum speed, it proves that there is no need to detect the weight of the impeller through the weight sensor, and the weight of the oil on the impeller is relatively large at this time, so the user can be directly prompted to clean the impeller by himself. If the speed of the last rotation is less than the maximum speed, the user can be prompted to clean the impeller by himself or continue to increase the speed until the maximum speed is reached, and further determine whether the adhesion after reaching the maximum speed is not less than the preset value. When the adhesion is not less than the preset value, the oil in the impeller can only be removed by the user cleaning the impeller by himself. When prompting the user to clean, for example, a button can be set on the range hood to remind the user to clean by themselves by flashing the button, or by sending a text message to remind the user to clean by themselves, or by having the range hood alarm to remind the user to clean by themselves, and there is no limitation here.

[0066] S214, obtaining oil pollution detection parameters of the impeller.

[0067] S215, comparing the oil pollution detection parameter with a preset oil pollution parameter threshold, if the oil pollution detection parameter is greater than the preset oil pollution parameter threshold, cleaning the impeller again.

[0068] Specifically, the oil stain detection parameter can characterize the cleanliness of the oil stain on the impeller after the last cleaning. The obtained oil stain detection parameter is compared with the preset oil stain parameter threshold. If the oil stain detection parameter is greater than the preset oil stain parameter threshold, it proves that the oil stain on the impeller has not been completely cleaned through the previous round of cleaning, and the impeller needs to be further cleaned, so a second round of cleaning can be performed at this time. When performing the second round of cleaning, the specific value of the oil stain parameter and the preset oil stain parameter threshold can be subtracted to obtain the difference result, and the difference result can be compared with the preset difference interval. The cleaning time and number of cleaning times of the second impeller are determined according to the comparison result, and finally the impeller is cleaned according to the cleaning time and number of cleaning times.

[0069] It is understandable that in this example, 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 impeller is driven by a motor to rotate in the opposite direction for multiple times to reduce the impact of the generated wind on the weight of the impeller measured by the weight sensor. The weight difference is obtained by subtracting the last detection weight from the first detection weight among multiple detection weights, and the strength of the adhesive force is determined according to the weight. The strength of the adhesive force is used to determine whether the weight of the impeller can be determined using the weight sensor, thereby improving the accuracy of the determination of the impeller weight. The number of cleaning times and cleaning time of the impeller are determined according to the weight of the oil stains, and the impeller is cleaned based on the number of cleaning times and cleaning time, thereby improving the cleaning strength of the impeller, saving the cleaning cost of the impeller, and obtaining the oil stain detection parameters of the impeller. The oil stain detection parameters are compared with the preset oil stain parameter threshold. If the oil stain detection parameters are greater than the preset oil stain parameter threshold, the impeller is cleaned again, so that the impeller is cleaned more thoroughly and the cleaning strength of the impeller is improved.

[0070] The oil stain cleaning method of the present invention is explained 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 through the noise of the range hood, test the suction or "listen to the wind". If the range hood is broken, there is no need to clean it; if the range hood can be used normally, determine the initial speed and maximum speed of the impeller, and according to the initial speed and maximum speed, the impeller can increase the speed at equal intervals or at unequal intervals, and use a motor to drive the impeller to rotate in the opposite direction 5 times at a preset increasing speed (not limited here), and use a weight sensor to detect the weight of the impeller at each rotation, and obtain The first detection weight A, the second detection weight B, the third detection weight C, the fourth detection weight D, and the fifth detection weight E are measured. The detection weight E is subtracted from the detection weight A to obtain the difference F. The difference is compared with the preset difference. If the difference is less than the preset difference, it indicates that the adhesion is less than the preset value. The detection weight A, detection weight B, detection weight C, detection weight D, and detection weight E can be averaged. The average value can be used as the final weight of the impeller. The oil weight of the impeller is obtained by subtracting the original weight of the impeller from the final weight of the impeller. The cleaning time and number of cleanings are determined according to the oil weight. Finally, the impeller is cleaned to different degrees. If the difference is greater than the preset difference, it indicates that the adhesion is greater than or equal to the preset value. Then it is determined whether the fifth speed has reached the maximum speed. If the maximum speed has been reached, the user is prompted to manually clean the impeller.

[0071] 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 The oil cleaning system includes an electric control board, a power board, a motor and an impeller. The oil cleaning system controls the power board to be powered on by the electric control board so that after the range hood is turned on, the motor is controlled to drive the impeller to rotate in the reverse direction at a preset increasing speed, and a weight sensor is used to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller, and the adhesion of the oil on the impeller to the impeller is determined based on the multiple detection weights; if the adhesion is less than the preset value, the weight of the oil on the impeller is determined based on the multiple detection weights and the initial weight of the impeller; and the impeller is cleaned to different degrees based on the weight of the oil.

[0072] 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:

[0073] A detection module 401 is used to use the motor to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed, and use a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller;

[0074] A determination module 402, configured to determine the adhesion force of the oil on the impeller to the impeller based on the multiple detection weights;

[0075] The determination module 402 is further configured to determine the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller if the adhesive force is less than a preset value;

[0076] The cleaning module 403 is used to clean the impeller to different degrees based on the weight of the oil pollution.

[0077] In one embodiment, the determining module 402 is specifically configured to:

[0078] Subtracting the last detected weight from the first detected weight among the multiple detected weights to obtain a weight difference;

[0079] The adhesive force is determined based on the weight difference.

[0080] In one embodiment, the determining module 402 is specifically configured to:

[0081] determining an average of multiple test weights;

[0082] The oil pollution weight is obtained by subtracting the initial weight from the average value.

[0083] In one embodiment, the cleaning module 403 is specifically used for:

[0084] Determining the number of cleaning times and cleaning time of the impeller according to the weight of the oil stain;

[0085] The impeller is cleaned based on the number of cleaning times and the cleaning time.

[0086] In one embodiment, after determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detected weights, the cleaning module 403 is specifically used to:

[0087] If the adhesion force is not less than the preset value, obtaining the rotation speed of the impeller when it rotates in the reverse direction for the last time;

[0088] If the rotation speed during the last rotation is not less than the maximum rotation speed, the user is prompted to clean the impeller.

[0089] In one embodiment, the cleaning module 403, after cleaning the impeller to different degrees based on the weight of the oil pollution, is specifically used to:

[0090] Obtaining oil pollution detection parameters of the impeller;

[0091] The oil pollution detection parameter is compared with a preset oil pollution parameter threshold value. If the oil pollution detection parameter is greater than the preset oil pollution parameter threshold value, the impeller is cleaned again.

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

[0093] determining an initial speed and a maximum speed of the impeller;

[0094] Determining the preset incremental speed according to the initial speed and the maximum speed;

[0095] The motor is used to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed.

[0096] In the device of the present invention, the motor can be used to drive the impeller to rotate in the reverse direction for multiple times at a preset increasing speed, and a weight sensor can be used to detect the weight of the impeller at each rotation to obtain multiple detection weights of the impeller; the adhesion of the oil on the impeller to the impeller is determined based on the multiple detection weights; if the adhesion is less than the preset value, the weight of the oil on the impeller is determined based on the multiple detection weights and the initial weight of the impeller; and the impeller is cleaned to different degrees based on the weight of the oil. In this method, the motor is used to drive the impeller to rotate in the reverse direction for multiple times to reduce the influence of the generated wind on the weight of the impeller measured by the weight sensor. The weight sensor measures the weight of the impeller during the rotation of the impeller, effectively avoiding the influence of the adhesion of the oil on the weight of the impeller. By comparing the adhesion of the oil to the impeller with the preset value and then cleaning the impeller to different degrees, the impeller cleaning method is optimized.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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:

[0107] Using the motor to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed, and using a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller;

[0108] Determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights;

[0109] If the adhesion force is less than a preset value, determining the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller;

[0110] The impeller is cleaned to different degrees based on the weight of the oil pollution.

[0111] The solution of the present invention can use the motor to drive the impeller to rotate in the reverse direction for multiple times at a preset increasing speed, and use a weight sensor to detect the weight of the impeller at each rotation to obtain multiple detection weights of the impeller; determine the adhesion of the oil on the impeller to the impeller based on the multiple detection weights; if the adhesion is less than the preset value, determine the weight of the oil on the impeller based on the multiple detection weights and the initial weight of the impeller; and clean the impeller to different degrees based on the weight of the oil. In this method, the motor is used to drive the impeller to rotate in the reverse direction for multiple times to reduce the influence of the generated wind on the weight of the impeller measured by the weight sensor. The weight sensor measures the weight of the impeller during the rotation of the impeller, effectively avoiding the influence of the adhesion of the oil on the weight of the impeller. By comparing the adhesion of the oil to the impeller with the preset value and then cleaning the impeller to different degrees, the impeller cleaning method is optimized.

[0112] 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.

[0113] 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.

[0114] 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 in the reverse direction multiple times at a preset increasing speed, and using a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller; Determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights; If the adhesion force is less than a preset value, determining the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller; The impeller is cleaned to different degrees based on the weight of the oil pollution.

2. The method according to claim 1, characterized in that: The determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights includes: Subtracting the last detected weight from the first detected weight among the multiple detected weights to obtain a weight difference; The adhesive force is determined based on the weight difference.

3. The method according to claim 1, characterized in that The step of determining the weight of the oil pollution on the impeller based on the plurality of detected weights and the initial weight of the impeller comprises: determining an average of the plurality of test weights; The oil pollution weight is obtained by subtracting the initial weight from the average value.

4. The method according to claim 1, characterized in that The cleaning of the impeller to different degrees based on the weight of the oil pollution includes: Determining the number of cleaning times and cleaning time of the impeller according to the weight of the oil stain; The impeller is cleaned based on the number of cleaning times and the cleaning time.

5. The method according to claim 1, characterized in that After determining the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights, the method further includes: If the adhesion force is not less than the preset value, obtaining the rotation speed of the impeller when it rotates in the reverse direction for the last time; If the rotation speed during the last rotation is not less than the maximum rotation speed, the user is prompted to clean the impeller.

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

7. The method according to claim 5, characterized in that The method of using the motor to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed includes: determining an initial rotation speed and a maximum rotation speed of the impeller; Determining the preset incremental speed according to the initial speed and the maximum speed; The motor is used to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed.

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: A detection module, used to use the motor to drive the impeller to rotate in the reverse direction multiple times at a preset increasing speed, and use a weight sensor to detect the weight of the impeller after each rotation to obtain multiple detection weights of the impeller; A determination module, configured to determine the adhesion force of the oil stain on the impeller to the impeller based on the multiple detection weights; The determination module is further configured to determine the weight of the oil stain on the impeller based on the multiple detected weights and the initial weight of the impeller if the adhesive force is less than a preset value; A cleaning module is used to clean the impeller to different degrees based on 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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