Refrigerator control method, controller, refrigerator and storage medium

Abstract

The invention discloses a refrigerator control method, a controller, a refrigerator and a storage medium, and the method comprises the steps that when it is detected that a user approaches the refrigerator, the current rotating speed and the current gear of a compressor are determined; a target gear is determined according to the current rotating speed of the compressor and the rotating speed of the next gear lower than the current gear, and the target gear is lower than the current gear; and controlling the compressor to operate at the target gear. In the embodiment of the invention, by comparing the rotating speed of the current gear and the rotating speed of the next gear of the compressor, noise abrupt change caused by too large difference between the rotating speeds of the two gears can be avoided, meanwhile, the situation that noise reduction cannot be performed due to the fact that the rotating speeds of the two adjacent gears are close can be avoided, and therefore noise reduction can be performed on the refrigerator while noise abrupt change is reduced; and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric appliance control, and in particular to a refrigerator control method, a controller, a refrigerator and a storage medium. BACKGROUND

[0002] A refrigerator is an indispensable household appliance in modern life, and its basic function is to preserve food in a low-temperature environment. Generally, a refrigerator operates according to fixed refrigeration logic. When the refrigerator is started or the compressor and the fan operate at a high speed, a large noise is generated. If a person is near the refrigerator at this time, the noise is easily perceived.

[0003] In recent years, a technology for reducing the perception of refrigerator noise by a user in an intelligent noise reduction manner has been gradually proposed. The principle is to detect whether a person is present near the refrigerator, and to reduce the speed of the compressor and the fan of the refrigerator when a person is present, so as to achieve the purpose of noise reduction. The above-mentioned manner directly adjusts the speed of the compressor or the fan to a fixed gear position for noise reduction. However, noise mutation may occur in the process of direct adjustment. Therefore, the problem of noise fluctuation in the noise reduction process is not considered in the current refrigerator noise reduction program. SUMMARY

[0004] The embodiments of the present application provide a refrigerator control method, a controller and a refrigerator, which can reduce noise mutation while reducing the noise of the refrigerator.

[0005] In a first aspect, the embodiments of the present application provide a refrigerator control method, comprising:

[0006] When it is detected that a user is close to the refrigerator, determining a current speed of a compressor and a current gear position of the compressor;

[0007] Determining a target gear position according to the current speed of the compressor and a speed of a next gear position lower than the current gear position, the target gear position being lower than the current gear position;

[0008] Controlling the compressor to operate at the target gear position.

[0009] In some embodiments, the determining of the target gear position according to the current speed of the compressor and the speed of the next gear position lower than the current gear position comprises:

[0010] Determining a representative speed of the next gear position of the current gear position, the representative speed being a speed value in a speed range of the gear position;

[0011] Determining a speed difference value between the current speed and the representative speed, and determining the target gear position according to the speed difference value.

[0012] In some embodiments, the determining of the target gear position according to the speed difference value comprises:

[0013] comparing the rotation speed difference value with a preset threshold value;

[0014] when the rotation speed difference value is greater than the preset threshold value, controlling the compressor to run at a next gear of the current gear;

[0015] alternatively,

[0016] when the rotation speed difference value is less than or equal to the preset threshold value, controlling the compressor to run at N next gears or a lowest gear of the current gear, N being a positive integer greater than 1.

[0017] In some embodiments, the method further comprises:

[0018] when it is detected that a user is close to the refrigerator, controlling the fan to run at a lowest fan gear.

[0019] In some embodiments, before determining the current rotation speed and the current gear of the compressor, the method further comprises:

[0020] determining that the refrigerator is not in a preset mode, the preset mode being a mode in which the compressor is specified to run in a preset manner.

[0021] In some embodiments, after determining the current rotation speed and the current gear of the compressor, the method further comprises:

[0022] recording the current rotation speed as an original rotation speed;

[0023] after controlling the compressor to run at the target gear, the method further comprises:

[0024] when it is detected that a user is away from the refrigerator, recording a leaving duration of the user away from the refrigerator;

[0025] when the leaving duration is greater than or equal to a preset duration, controlling the compressor to run at the original rotation speed after the preset duration.

[0026] In some embodiments, the preset mode is a turbo freeze mode, an overload mode, a temperature storage mode, an energy consumption mode, or a compressor current overload protection mode.

[0027] In a second aspect, the embodiments provide a controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the refrigerator control method according to the first aspect when executing the computer program.

[0028] In a third aspect, the embodiments provide a refrigerator comprising the controller according to the second aspect.

[0029] In a fourth aspect, the embodiment provides a computer readable storage medium, which stores computer executable instructions for causing a computer to execute the refrigerator control method according to the first aspect.

[0030] The refrigerator control method, the controller, the refrigerator and the storage medium provided by the embodiment have at least the following beneficial effects: when it is detected that a user is close to the refrigerator, the current speed of the compressor and the current gear of the compressor are determined, the current speed of the compressor is compared with the speed of the next gear lower than the current gear, the target gear lower than the current gear is determined, and finally the compressor is controlled to operate in the target gear, so that the refrigerator can be de-noised when a person is close to the refrigerator, and the comfort of the user is improved. Moreover, by comparing the speed of the current gear of the compressor with the speed of the next gear, the embodiment can avoid sudden noise caused by a large difference in speed between two gears, and can also avoid the situation that the speeds of two adjacent gears are similar and de-noising cannot be performed, so that the noise sudden change can be reduced while the refrigerator is de-noised, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a whole flowchart of the refrigerator control method provided by the embodiment of the present application;

[0032] Figure 2 is Figure 1 is a flowchart of the specific method of step S102 in

[0033] Figure 3 is Figure 2 is a flowchart of the specific method of step S202 in

[0034] Figure 4 is a flowchart of reducing the gear of the fan provided by an embodiment of the present application;

[0035] Figure 5 is a flowchart of determining the mode of the refrigerator provided by an embodiment of the present application;

[0036] Figure 6 is a flowchart of recording the original speed provided by an embodiment of the present application;

[0037] Figure 7 is a flowchart of the refrigerator control method provided by another embodiment of the present application;

[0038] Figure 8 is a whole flowchart of the refrigerator control method provided by an example of the present application;

[0039] Figure 9 is a schematic diagram of the controller provided by an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application. In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be sequentially changed or adjusted in a manner that is apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0041] In the description of the present application, one or more is the meaning of one or more, and more than two is the meaning of more than two, greater than, less than, more than, etc. are understood to not include the number, and above, below, etc. are understood to include the number. If it is described as first, second, it is only used to distinguish the technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0042] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. And the "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified.

[0043] The refrigerator is an indispensable household appliance in modern life, and its basic function is to preserve food in a low-temperature environment. Generally, the refrigerator operates according to fixed refrigeration logic, and when the compressor and fan of the refrigerator are running at a high speed, a large noise will be generated. If someone is near the refrigerator at this time, this noise is easy to be perceived.

[0044] In recent years, a technology for reducing the perception of refrigerator noise by users in an intelligent noise reduction manner has been proposed, which detects whether there is a person near the refrigerator, and reduces the speed of the compressor and fan of the refrigerator when there is a person, so as to achieve the purpose of noise reduction. The above-mentioned method directly adjusts the speed of the compressor or the fan to a fixed gear for noise reduction. However, noise mutation may occur during direct adjustment, therefore, the problem of noise fluctuation during noise reduction is not considered in the current refrigerator noise reduction program.

[0045] To solve the above problems, the embodiment provides a refrigerator control method, a controller, a refrigerator and a storage medium. When it is detected that a user is close to the refrigerator, the current rotating speed of the compressor and the current gear of the compressor are determined, and then the rotating speed of the current gear of the compressor is compared with the rotating speed of the next gear lower than the current gear, so as to determine the target gear lower than the current gear, and finally the compressor is controlled to operate in the target gear. Thus, the refrigerator can be de-noised when a person is close to the refrigerator, and the comfort of the user is improved. In addition, by comparing the rotating speed of the current gear of the compressor with the rotating speed of the next gear, the sudden change of noise caused by the large difference between the rotating speeds of the two gears can be avoided, and the situation that the adjacent two gears cannot be de-noised due to the similar rotating speeds of the two gears can also be avoided. Thus, the sudden change of noise can be reduced while the refrigerator is de-noised, and the user experience is improved.

[0046] The refrigerator control method will be described below in combination with the accompanying drawings:

[0047] Referring to Figure 1 , Figure 1 A specific flowchart of the refrigerator control method provided by the embodiment is shown in the figure. The refrigerator control method includes but is not limited to the following steps S101 to S103.

[0048] In step S101, when it is detected that a user is close to the refrigerator, the current rotating speed of the compressor and the current gear are determined.

[0049] In step S101 of some embodiments, the user sensor provided on the refrigerator is used to detect whether a person is close to the refrigerator in real time. When it is detected that a user is close to the refrigerator, the current rotating speed of the compressor and the current gear are determined. Thus, the surrounding environment of the refrigerator can be continuously monitored, and the subsequent de-noising program can be triggered, so as to improve the comfort of the user.

[0050] It should be noted that in the embodiment, one or more of the infrared sensor, the ultrasonic sensor and the photoelectric sensor can be used to detect whether a user is close to the refrigerator. The infrared sensor can be used to detect whether a person is close to the refrigerator by detecting the infrared radiation around the refrigerator. The ultrasonic sensor can be used to detect whether a person is close to the refrigerator by emitting and receiving echoes. The photoelectric sensor can be used to detect whether a person is close to the refrigerator by detecting the intensity change of light.

[0051] It should be noted that in the embodiment, the rotating speed gears of the compressors and the rotating speed gears of the fans are pre-set in the refrigerator, and each rotating speed gear of the compressor is provided with a respective rotating speed range. Similarly, each rotating speed gear of the fan is also provided with a respective rotating speed range. The number of the rotating speed gears of the compressors and the rotating speed gears of the fans can be set according to actual conditions, and the embodiment does not make specific limitations.

[0052] Step S102, determining the target gear according to the current rotating speed of the compressor and the rotating speed of the next gear lower than the current gear.

[0053] It should be noted that the target gear is lower than the current gear.

[0054] In step S102 of some embodiments, in the process of reducing the noise of the refrigerator, the rotating speeds of the adjacent two gears of the compressor may be similar and cannot effectively reduce the noise, or the gear of the compressor may be lowered too much to cause sudden noise, so the embodiment needs to determine the target gear according to the current rotating speed of the compressor and the next gear lower than the current gear, so as to smoothly reduce the noise of the refrigerator, reduce the noise fluctuation in the noise reduction process while ensuring the noise reduction effect.

[0055] Step S103, controlling the compressor to run at the target gear.

[0056] In step S103 of some embodiments, the compressor is controlled to run at the target gear, so as to smoothly reduce the noise of the refrigerator.

[0057] Referring to Figure 2 , Figure 2 is Figure 1 a flowchart of the specific method of step S102 in the embodiment, and the step S102 can include but is not limited to the following steps S201 to S202.

[0058] Step S201, determining the representative rotating speed of the next gear of the current gear.

[0059] It should be noted that the representative rotating speed is a rotating speed value in the rotating speed range of the gear.

[0060] In step S201 of some embodiments, in the process of determining the target gear, the representative rotating speed of the next gear of the current gear is first determined, wherein each gear is provided with a specific rotating speed range, and the representative rotating speed is any rotating speed value in the rotating speed range of the gear, for example, the maximum rotating speed value, the minimum rotating speed value, the average rotating speed value, etc., which is not limited in the embodiment, so as to facilitate the subsequent comparison of the rotating speed difference value between the current gear and the next gear.

[0061] Step S202, determining the rotating speed difference value between the current rotating speed and the representative rotating speed, and determining the target gear according to the rotating speed difference value.

[0062] In step S202 of some embodiments, since in the process of reducing the noise of the refrigerator, the noise mutation caused by the too large reduction amplitude may occur, and the noise reduction caused by the too small reduction amplitude may not be effective, therefore, the current speed of the current gear is compared with the representative speed of the next gear of the current gear in the embodiment, the speed difference between the current speed and the representative speed is determined, so that the noise reduction effect can be improved while reducing the noise mutation, and the target gear is determined according to the speed difference, the noise of the refrigerator is reduced, and the noise generated by the refrigerator is intelligently reduced.

[0063] Referring to Figure 3 , Figure 3 is Figure 2 The flowchart of the specific method of step S202 can include but is not limited to the following steps S301 to S303.

[0064] In step S301, the speed difference is compared with the preset threshold.

[0065] In step S302, when the speed difference is greater than the preset threshold, the compressor is controlled to reduce to the next gear of the current gear.

[0066] In step S303, when the speed difference is less than or equal to the preset threshold, the compressor is controlled to reduce to the next N gears or the lowest gear of the current gear.

[0067] It should be noted that N is a positive integer greater than 1.

[0068] In steps S301 to S303 of some embodiments, in the process of determining the target gear according to the speed difference, first, the speed difference is compared with the preset threshold, so as to determine whether the speeds corresponding to the two gears are similar. When the speed difference is greater than the preset threshold, it indicates that the current speed of the current gear is not similar to the representative speed of the next gear of the current gear, and the speed change is not abrupt, and the noise mutation does not occur. The compressor can be directly controlled to reduce to the next gear of the current gear, so as to realize the noise reduction operation of the refrigerator, and smoothly reduce the noise generated by the refrigerator when the user approaches the refrigerator, thereby improving the stability of the refrigerator during operation. When the speed difference is less than or equal to the preset threshold, it indicates that the current speed of the current gear is relatively close to the representative speed of the next gear. If the compressor is controlled to reduce to the next gear of the current gear at this time, the noise cannot be effectively reduced, therefore, the compressor needs to be controlled to reduce to the next N gears of the current gear or directly reduce to the lowest gear, so as to improve the noise reduction effect of the refrigerator and avoid the situation that the speed difference between the adjacent gears of the refrigerator is too small and the noise cannot be effectively reduced. The embodiment can reduce the noise mutation while reducing the noise of the refrigerator, thereby improving the noise reduction effect and ensuring the refrigeration reliability of the refrigerator after noise reduction.

[0069] It is worth noting that the refrigerator is provided with multiple compressor gears, and in the case that the speed difference is less than or equal to the preset threshold, it can be directly reduced to the next 2, 3 or 4 gears of the current gear, or it can be directly reduced to the lowest gear, thereby ensuring the noise reduction effect of the refrigerator.

[0070] In the process of controlling the compressor to reduce to the next N gears of the current gear, the representative speed of each of the next N gears of the current gear can be determined, and then the difference between the current speed and the representative speed of each of the N gears is compared in turn. The difference is compared with the preset noise reduction interval, and finally the gear corresponding to the first difference in the noise reduction interval is taken as the target gear, and the compressor is controlled to run at the speed of the target gear. The noise reduction interval can be obtained according to the historical running state of the refrigerator.

[0071] It should be noted that the preset threshold in the present embodiment can be set according to the representative speed of different gears, and the preset threshold represents the amplitude of the compressor gear reduction. For example, the preset threshold is set to 300 RPM, 400 RPM, 350 RPM, etc. Taking the preset threshold of 300 RPM as an example, in the case that the user is close to the refrigerator, the current speed of the compressor and the representative speed of the next gear of the current gear are determined. In the case that the speed difference between the current speed and the representative speed is greater than 300 RPM, the compressor is controlled to run at the next gear of the current gear, i.e. the running gear of the compressor is adjusted to the highest gear below 300 RPM. In the case that the speed difference between the current speed and the representative speed is less than or equal to 300 RPM, the compressor is controlled to run at the next N gears of the current gear or the lowest gear, thereby achieving effective noise reduction of the refrigerator by selecting an appropriate noise reduction gear.

[0072] In some embodiments, in the case that the current speed of the compressor is high, if the gear of the compressor is directly reduced to the lowest, it will cause large noise fluctuation, thereby affecting the noise reduction effect of the refrigerator. On the contrary, in the case that the current speed of the compressor is low, the gear of the compressor can be directly reduced to the lowest gear to achieve noise reduction of the refrigerator and improve the noise reduction effect.

[0073] Referring to Figure 4 , Figure 4 is a flowchart provided by an embodiment of the present application for reducing the gear of the fan. The method includes but is not limited to the following step S401.

[0074] Step S401, when it is detected that the user is close to the refrigerator, the fan is controlled to run at the lowest fan gear.

[0075] In step S401 of some embodiments, during normal operation of the refrigerator, the compressor and the fan rotate at a fixed speed, the compressor is used for compression, condensation, expansion and other operations of the refrigerant, and the fan is used for circulating air to maintain uniform temperature distribution, when it is detected that the user is close to the refrigerator, the fan is controlled to run at the lowest fan gear, thereby reducing the noise generated by the fan, further improving the noise reduction effect, and thereby improving the comfort of the user.

[0076] It should be noted that the human sensing noise reduction process in the present embodiment is run in stages, and does not need to be run for a long time, so the fan can be directly reduced to run at the lowest fan gear, i.e. whether the compressor is controlled to run at the next gear or N gears or the lowest gear below the current gear, the fan can be directly reduced to run at the lowest fan gear, which can improve the overall noise reduction effect.

[0077] In the case of long-term noise reduction operation of the refrigerator, the present embodiment can also control the fan to run at a lower gear than the current fan gear, i.e. without reducing to the lowest fan gear, thereby improving the noise reduction effect of the refrigerator while considering the performance of the refrigerator.

[0078] Referring to Figure 5 , Figure 5 is a flowchart provided by an embodiment of the present application for determining the mode of the refrigerator, and the method includes but is not limited to the following step S501.

[0079] It should be noted that step S501 occurs before determining the current speed and current gear of the compressor.

[0080] In step S501, it is determined that the refrigerator is not in a preset mode.

[0081] It should be noted that the preset mode is a mode in which the compressor is specified to run in a preset manner.

[0082] In step S501 of some embodiments, before determining the current speed and current gear of the compressor, the running mode of the refrigerator also needs to be determined to determine the current running mode of the refrigerator, and after determining that the refrigerator is not in the preset mode, the subsequent noise reduction process is performed, thereby avoiding the case of mode conflict, and the running mode of the refrigerator can be flexibly adjusted.

[0083] In some embodiments, the preset mode is a quick freezing and quick cooling mode, an overload mode, a temperature storage mode, an energy consumption mode, or a compressor current overload protection mode, and the compressor in each mode of the preset mode runs in a specific manner, i.e. the compressor runs at a specific speed in the preset mode, and reducing the speed of the compressor will affect the performance of the refrigerator, further reducing the user experience.

[0084] It is worth noting that when it is determined that the refrigerator is in the preset mode, the refrigerator human sensing noise reduction program is not triggered, and the refrigerator is maintained in the preset mode, that is, the compressor is controlled to operate at the speed in the preset mode, thereby avoiding affecting the working performance of the refrigerator in different modes.

[0085] It can be understood that when the refrigerator is in the quick-freezing and quick-cooling mode, the compressor will operate at a higher power to speed up the refrigeration cycle to quickly reduce the temperature of the refrigerating chamber and the freezing chamber. Similarly, the fan can operate at a faster speed to promote air circulation and ensure uniform cooling of the entire refrigerator. When the refrigerator is in the overload mode, the compressor can automatically adjust the working parameters according to the load condition to maintain the temperature stability inside the refrigerator. Similarly, the fan can operate at an appropriate speed to maintain air circulation. When the refrigerator is in the temperature storage mode, the compressor can operate at a lower power to maintain appropriate temperature and humidity conditions. Similarly, the fan can adjust the output to maintain the freshness of the food. When the refrigerator is in the energy consumption mode, the compressor can reduce the power or reduce the number of refrigeration cycles to reduce energy consumption. Similarly, the fan can operate at a lower speed to save energy. When the refrigerator is in the current overload protection mode, it means that the refrigerator detects that the current exceeds the set range during operation. In order to avoid damage or safety problems, the refrigerator will automatically enter the protection mode.

[0086] Referring to Figure 6 , Figure 6 is a flowchart provided by an embodiment of the present application for recording the original speed. The method includes but is not limited to the following step S601.

[0087] It should be noted that step S601 occurs after determining the current speed and the current gear of the compressor.

[0088] In step S601, the current speed is recorded as the original speed before starting the noise reduction program of the refrigerator.

[0089] In step S601 of some embodiments, the current speed is recorded as the original speed before starting the noise reduction program of the refrigerator.

[0090] Referring to Figure 7 , Figure 7 is a flowchart of a refrigerator control method provided by another embodiment of the present application. The refrigerator control method includes but is not limited to the following steps S701 to S702.

[0091] It should be noted that steps S701 to S702 occur after controlling the compressor to operate at the target gear.

[0092] In step S701, when it is detected that the user leaves the refrigerator, the leaving duration of the user leaving the refrigerator is recorded.

[0093] It should be noted that after the user leaves the refrigerator, the noise reduction program of the refrigerator continues to run for a period of time, in order to ensure the refrigeration reliability of the refrigerator after noise reduction, the leaving duration of the user leaving the refrigerator needs to be recorded, so as to facilitate subsequent judgment whether the refrigerator continues to reduce noise or stops reducing noise.

[0094] In step S702, when the leaving duration is greater than or equal to the preset duration, the compressor is controlled to run at the original speed after the preset duration.

[0095] In steps S701 to S702 of some embodiments, after controlling the compressor to run at the target gear, when it is detected that the user leaves the refrigerator, the leaving duration of the user leaving the refrigerator is recorded, and when the leaving duration is greater than or equal to the preset duration, it is indicated that no user approaches the refrigerator again within the preset duration, and then the compressor is controlled to run at the original speed after the preset duration, that is, the speed before the noise reduction program starts is restored, the performance of the refrigerator is improved, and the refrigeration reliability of the refrigerator after the noise reduction program can be ensured. The preset duration can be set according to the user's needs, for example, three minutes, four minutes, five minutes, etc., and the present embodiment does not make specific limitations. When the preset duration is too short, for example, twenty seconds, forty seconds, one minute, etc., the noise fluctuation problem caused by the refrigerator frequently entering the noise reduction program may occur when the user repeatedly passes by the refrigerator; when the preset duration is too long, for example, ten minutes, fifteen minutes, etc., the compressor will continue to run at a low speed, which will affect the performance of the refrigerator. Therefore, the preset duration in the present embodiment can be set within the interval of two minutes to five minutes, so as to reduce the noise fluctuation caused by frequent triggering of the human sensing in a short time, and to avoid the influence of long-time low-speed running of the compressor on the performance of the refrigerator.

[0096] It should be noted that the preset duration in the present embodiment can be set by the user according to the user's needs, for example, three minutes, four minutes, five minutes, etc., and the present embodiment does not make specific limitations. When the preset duration is too short, for example, twenty seconds, forty seconds, one minute, etc., the noise fluctuation problem caused by the refrigerator frequently entering the noise reduction program may occur when the user repeatedly passes by the refrigerator; when the preset duration is too long, for example, ten minutes, fifteen minutes, etc., the compressor will continue to run at a low speed, which will affect the performance of the refrigerator. Therefore, the preset duration in the present embodiment can be set within the interval of two minutes to five minutes, so as to reduce the noise fluctuation caused by frequent triggering of the human sensing in a short time, and to avoid the influence of long-time low-speed running of the compressor on the performance of the refrigerator.

[0097] In some embodiments, when the leaving duration is less than the preset duration or the user continues to approach the refrigerator within the preset duration, the compressor is controlled to run at the speed of the gear after the gear reduction, so as to realize stable noise reduction of the refrigerator, improve the user experience, and avoid noise fluctuation caused by repeated noise reduction.

[0098] In some embodiments, during the process of controlling the compressor to run at the original speed, the fan can also be restored to run at the speed before the noise reduction program, so as to ensure the refrigeration reliability of the refrigerator after noise reduction.

[0099] In order to further explain the refrigerator control method, controller, refrigerator and storage medium provided by the present embodiment, the following specific examples are used for specific description.

[0100] Example One:

[0101] Reference Figure 8 ,Figure 8 is a whole flow chart of the refrigerator control method provided by one example of the present application.

[0102] In some embodiments, a human sensing sensor is arranged in the refrigerator, and the human sensing sensor is used to detect whether a person approaches the refrigerator.

[0103] Step S1: the refrigerator is powered on and runs.

[0104] Step S2: it is judged whether the refrigerator is in a preset mode.

[0105] It should be noted that the preset mode is a quick freezing and quick cooling mode, an overload mode, a temperature storage mode, an energy consumption mode, or a compressor current overload protection mode.

[0106] Step S3: when the refrigerator is not in the preset mode, it is detected by the human sensing sensor whether a person approaches.

[0107] It should be noted that when the refrigerator is in the preset mode, the speed of the compressor is maintained at the speed in the preset mode, and the running state of the refrigerator is continuously judged, so as to adapt to more mode changes.

[0108] Step S4: when the user approaches the refrigerator, the current speed and the current gear of the compressor are determined, and the current speed is recorded as the original speed.

[0109] Step S5: the representative speed of the next gear lower than the current gear is determined, and the speed difference between the current speed and the representative speed is determined.

[0110] Step S6: it is judged whether the speed difference is greater than a preset threshold.

[0111] Step S7: when the speed difference is greater than the preset threshold, the compressor is controlled to run at the highest gear below the current speed, and the fan is controlled to run at the lowest fan gear.

[0112] Step S8: when the speed difference is less than or equal to the preset threshold, the compressor is controlled to run at the next N gears or the lowest gear of the current gear, and the fan is controlled to run at the lowest fan gear.

[0113] Step S9: it is detected by the human sensing sensor whether the user leaves the refrigerator.

[0114] Step S10: when it is not detected that the user leaves the refrigerator, the compressor is controlled to continuously run at the gear after the gear reduction.

[0115] Step S11: when it is detected that the user leaves the refrigerator, the compressor is controlled to continuously run at the gear after the gear reduction for three minutes, and the leaving duration of the user leaving the refrigerator is recorded.

[0116] Step S12: it is judged whether a user approaches the refrigerator during the three minutes of continuous running of the compressor.

[0117] It should be noted that when a user approaches the refrigerator during the three minutes of continuous operation of the compressor, the compressor is controlled to continue operating at the gear after the gear reduction.

[0118] Step S13: When there is no user approaching the refrigerator during the three minutes of continuous operation of the compressor, it is judged whether the length of time of the user's departure is greater than three minutes.

[0119] Step S14: When the length of time of departure is greater than three minutes, the compressor is controlled to return to the original rotation speed for operation.

[0120] Step S15: When the length of time of departure is less than or equal to three minutes, the compressor is controlled to continue operating at the gear after the gear reduction.

[0121] In some embodiments, whether a person approaches the refrigerator is detected by a human sensing sensor, and the noise reduction program is triggered when a person approaches the refrigerator. Specifically, the current rotation speed of the compressor is compared with the representative rotation speed of the next gear lower than the current gear, and it is judged whether the rotation speed difference is greater than a preset threshold. When the rotation speed difference is greater than the preset threshold, it is indicated that the compressor can be directly controlled to operate at the representative rotation speed of the next gear of the current gear, thereby achieving the effect of noise reduction. When the rotation speed difference is less than or equal to the preset threshold, it is indicated that the rotation speeds between the two gears are similar, and if adjustment to the next gear of the current gear cannot achieve the effect of noise reduction, the compressor needs to be controlled to operate at the next N gears or the lowest gear of the current gear, thereby achieving smooth noise reduction of the refrigerator and reducing noise mutation during the noise reduction process. In addition, during the process of reducing the gear of the compressor, the fan can also be controlled to operate at the rotation speed corresponding to the lowest fan gear, which can achieve overall noise reduction of the refrigerator. During the noise reduction process, whether the user leaves is continuously detected by the human sensing sensor, and when it is detected that the user leaves, the compressor is controlled to continue operating at the gear after the gear reduction for a period of time, and the length of time of departure of the user is recorded. During the process of continuous operation of the compressor after the gear reduction, whether a user approaches is judged. If a user approaches, the compressor is controlled to continue operating at the rotation speed after the gear reduction. If no user approaches, it is judged whether the length of time of departure of the user is greater than the length of time of continuous operation. When the length of time of departure is greater than the length of time of continuous operation, the rotation speed of the compressor is controlled to return to before the gear reduction, thereby ensuring the reliability of the refrigerator after the human sensing noise reduction. When the length of time of departure is less than or equal to the length of time of continuous operation, the compressor is controlled to continue operating at the rotation speed after the gear reduction, thereby avoiding noise fluctuation caused by frequent triggering of the human sensing noise reduction in a short time.

[0122] The embodiment can intelligently reduce the noise of the refrigerator through the sensing of the human sensing sensor, improve the user experience, and reduce noise mutation during the noise reduction process by judging the rotation speed of the adjacent gears. After the user leaves the refrigerator, the noise fluctuation caused by frequent triggering of the human sensing noise reduction in a short time is avoided through the judgment of the operation time.

[0123] As Figure 9 shown, Figure 9 is a schematic diagram of a controller 1000 provided by an embodiment of the present application.

[0124] An embodiment of the present application further provides a controller 1000, comprising at least one processor and a memory connected to the at least one processor in communication; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the refrigerator control method of the above-described embodiments.

[0125] The controller 1000 of the present embodiment comprises one or more processors 1001 and memories 1002, Figure 9 and the processor 1001 and the memory 1002 are taken as an example.

[0126] The processor 1001 and the memory 1002 can be connected through a bus or other means, Figure 9 and the connection through the bus is taken as an example.

[0127] The memory 1002 is a kind of non-transient computer readable storage medium, and can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory 1002 can include high-speed random access memory, and can also include non-transient memory, such as at least one magnetic disk storage device, flash memory device, or other non-transient solid-state memory device. In some embodiments, the memory 1002 can optionally include a memory 1002 remotely arranged relative to the processor 1001, and these remote memories can be connected to the controller 1000 through a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0128] An embodiment of the present application further provides a refrigerator comprising the controller 1000 of the above-described embodiments, so as to be able to perform the above-described refrigerator control method.

[0129] As will be appreciated by one of ordinary skill in the art, all or some of the steps, systems, etc. in the methods disclosed above can be embodied in software, firmware, hardware, and / or suitable combinations thereof. Some or all of the physical components can be implemented with software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or can be implemented as hardware, or as an integrated circuit, such as an application- specific integrated circuit. Such software can be distributed on computer readable media, which can comprise computer storage media (or non-transitory media), and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media.

[0130] The above description is that of the preferred embodiments of the present application. Various equivalents substitutions of the techniques described herein can be implemented, both currently known or later developed, without departing from the spirit and scope of the application. Such equivalents substitutions are also intended to be encompassed by the claims of the present application.

Claims

1. A refrigerator control method, characterized by, The method comprises: detecting that a user is close to the refrigerator; determining a current rotation speed and a current gear of the compressor; determining a target gear according to the current rotation speed of the compressor and a rotation speed of a next gear lower than the current gear, the target gear being lower than the current gear; 2.The refrigerator control method of claim 1, characterized in that, controlling the compressor to operate at the target gear. The determining of the target gear according to the current rotation speed of the compressor and the rotation speed of the next gear lower than the current gear comprises: determining a representative rotation speed of the next gear of the current gear, the representative rotation speed being one rotation speed value in a rotation speed range of the gear; 3.The refrigerator control method of claim 2, characterized in that, determining a rotation speed difference value between the current rotation speed and the representative rotation speed, and determining the target gear according to the rotation speed difference value. The determining of the target gear according to the rotation speed difference value comprises: comparing the rotation speed difference value with a preset threshold value; when the rotation speed difference value is greater than the preset threshold value, controlling the compressor to reduce to the next gear of the current gear to operate; or, 4.The refrigerator control method of claim 1, characterized in that, when the rotation speed difference value is less than or equal to the preset threshold value, controlling the compressor to reduce to N next gears of the current gear or a lowest gear to operate, N being a positive integer greater than 1. The method further comprises: 5.The refrigerator control method of claim 1, characterized in that, when detecting that the user is close to the refrigerator, controlling the fan to operate at a lowest fan gear. Before determining the current rotation speed and the current gear of the compressor, the method further comprises: 6.The refrigerator control method of claim 1, wherein, determining that the refrigerator is not in a preset mode, the preset mode being a mode in which the compressor is specified to operate in a preset manner. After determining the current rotation speed and the current gear of the compressor, the method further comprises: recording the current rotation speed as an original rotation speed; After controlling the compressor to operate at the target gear, the method further comprises: when detecting that the user leaves the refrigerator, recording a leaving duration of the user leaving the refrigerator; 7.The refrigerator control method of claim 5, characterized in that, when the leaving duration is greater than or equal to a preset duration, controlling the compressor to operate at the original rotation speed after the preset duration.

8. A controller characterized by comprising: The preset mode is a quick-freezing and quick-cooling mode, an overload mode, a temperature storage mode, an energy consumption mode, or a compressor current overload protection mode. The refrigerator comprises:

9. A refrigerator characterized by comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the refrigerator control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The controller according to claim 8. The computer readable storage medium stores computer executable instructions for causing a computer to execute the refrigerator control method according to any one of claims 1 to 7.

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