WO2023246137A1 - 用于控制冰箱的方法及装置、冰箱、存储介质 - Google Patents

用于控制冰箱的方法及装置、冰箱、存储介质 Download PDF

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Publication number
WO2023246137A1
WO2023246137A1 PCT/CN2023/077545 CN2023077545W WO2023246137A1 WO 2023246137 A1 WO2023246137 A1 WO 2023246137A1 CN 2023077545 W CN2023077545 W CN 2023077545W WO 2023246137 A1 WO2023246137 A1 WO 2023246137A1
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WIPO (PCT)
Prior art keywords
refrigerator
radar sensor
user
interval
duration
Prior art date
Application number
PCT/CN2023/077545
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English (en)
French (fr)
Inventor
韩志强
李春阳
苗建林
李峰
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔电冰箱有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔电冰箱有限公司
Publication of WO2023246137A1 publication Critical patent/WO2023246137A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/66—Radar-tracking systems; Analogous systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

Definitions

  • This application relates to the technical field of smart home appliances, for example, to a method and device for controlling a refrigerator, a refrigerator, and a storage medium.
  • refrigerators are given more and more functions to meet the needs of users.
  • the user's status is detected and corresponding operations are performed in advance based on the user's status.
  • a method for controlling a refrigerator includes: a radar sensor collecting distance and position information of the human body in front of the refrigerator door in real time.
  • the radar sensor transmits the distance and position information of the human body to the detection terminal.
  • the detection terminal analyzes the distance and location information of the human body to determine the user's intention. If the user's intention is judged to be unintentional passing through the refrigerator, no processing will be performed. If the user's intention is to use the refrigerator, the detection terminal sends a heating instruction to the heating terminal. The heating terminal starts to heat the refrigerator door handle.
  • This method can detect the distance of the human body through the radar sensor, predict the user's intention based on the distance of the human body, and determine whether to heat the refrigerator door handle.
  • the sensitivity of the radar sensor will be affected due to the different materials and dirt levels of the door.
  • the actual detection distance of the radar sensor will deviate from the expected detection distance, which affects the timing of the refrigerator to perform corresponding operations, resulting in low reliability of the radar sensor.
  • Embodiments of the present disclosure provide a method and device for controlling a refrigerator, a refrigerator, and a storage medium to improve the reliability of radar sensors in the refrigerator.
  • the refrigerator includes a radar sensor for detecting whether a user is present in front of the door.
  • the method includes: obtaining a first interval between the radar sensor detecting the user and the user operating the refrigerator; and adjusting the sensitivity of the radar sensor based on the first interval.
  • adjusting the sensitivity of the radar sensor according to the first interval duration includes: when it is determined that the first interval duration meets the preset conditions, determining that the average of the first interval duration and the historical interval duration is the average interval duration; according to The average interval length is used to adjust the sensitivity of the radar sensor; when it is determined that the first interval length does not meet the preset conditions, the sensitivity of the radar sensor is kept unchanged.
  • adjust the sensitivity of the radar sensor according to the average interval duration including: reducing the detection distance of the radar sensor when the average interval duration is greater than the first duration threshold; and reducing the detection distance of the radar sensor when the average interval duration is less than the second duration threshold.
  • determining that the first interval duration satisfies the preset condition includes: determining that the first interval duration satisfies the preset condition when the first interval duration is greater than or equal to the third duration threshold and less than or equal to the fourth duration threshold; Determining that the first interval duration does not meet the preset condition includes: determining that the first interval duration does not meet the preset condition when the first interval duration is less than a third duration threshold, or greater than a fourth duration threshold.
  • obtaining the first interval between the radar sensor detecting the user and the user operating the refrigerator includes: starting the timing when the radar sensor detects the user; stopping the timing when the user operates the refrigerator; and setting the timing The duration is determined as the first interval duration.
  • obtaining the first interval between the radar sensor detecting the user and the user operating the refrigerator includes: obtaining the current first moment when the radar sensor detects the user; obtaining the current time when the user operates the refrigerator.
  • the second time determine the difference between the current second time and the current first time as the first interval duration.
  • the method further includes: obtaining a second interval duration between when the user stops operating the refrigerator and the radar sensor does not detect the user; and adjusting the radar sensor according to the second interval duration. sensitivity.
  • the device includes a processor and a memory storing program instructions, and the processor is configured to execute the above method for controlling a refrigerator when running the program instructions.
  • the refrigerator includes: a door; a radar sensor disposed on the door and used to detect whether a user is present in front of the door; and the above-mentioned device for controlling the refrigerator.
  • the storage medium stores program instructions, and when the program instructions are run, the above-mentioned method for controlling a refrigerator is executed.
  • the method and device for controlling a refrigerator, the refrigerator, and the storage medium provided by the embodiments of the present disclosure can realize the following technologies: Effect:
  • the radar sensor detects the user and the user moves toward the refrigerator, there is a possibility that the user intends to operate the refrigerator, and the refrigerator performs corresponding operations in advance.
  • the user it is determined that the user uses the refrigerator.
  • the first interval duration between the radar sensor detecting the user and the user operating the refrigerator is obtained to determine whether the timing is appropriate for the refrigerator to perform the corresponding operation in advance.
  • the sensitivity of the radar sensor is adjusted to change the detection distance so that the moment when the user is detected is changed, so as to control the timing of the refrigerator to perform the corresponding operation in advance within the expected range.
  • Figure 1 is a schematic diagram of a method for controlling a refrigerator provided by an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure
  • Figure 3 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure.
  • Figure 4 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure.
  • Figure 5 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic diagram of another method for controlling a refrigerator provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic diagram of a device for controlling a refrigerator provided by an embodiment of the present disclosure.
  • A/B means: A or B.
  • a and/or B means: A or B, or A and B.
  • correspondence can refer to an association relationship or a binding relationship.
  • correspondence between A and B refers to an association relationship or a binding relationship between A and B.
  • a refrigerator includes a display screen, light bar, heating device, etc.
  • the refrigerator automatically unlocks the display for user operation, lights up the light bar to welcome the user, and heats the refrigerator door handle to bring the door handle temperature close to the user's body surface temperature.
  • the distance between the user and the refrigerator is determined by measuring the distance sensor.
  • ranging sensors include infrared sensors, radar sensors, etc.
  • an infrared sensor is used to detect distance, affected by the indoor ambient temperature, the measured distance will deviate, resulting in low reliability of the infrared sensor. Therefore, refrigerators use radar sensors to improve the accuracy of detection distance.
  • An embodiment of the present disclosure provides a refrigerator, including a box body, a door, and a radar sensor.
  • the box door is arranged on the box body.
  • the radar sensor is installed on the door and is used to detect whether there is a user in front of the door. When the user is within the ranging range, it is determined that there is a user in front of the box door.
  • the set detection distance is the actual measured distance. Since the radar sensor in the refrigerator is set on the door, the distance measurement is hindered by the material of the door and the degree of contamination, so the set detection distance is greater than the actual measured distance.
  • the reason why the degree of contamination of the box door affects the actual measured distance is that the oil fume and water vapor in the kitchen cause a layer of grease and condensation water to adhere to the surface of the door.
  • the dielectric loss of grease and condensation water is much greater than that of air, causing the actual measured distance to become smaller.
  • the set detection distance is 2m
  • the actual measured distance is 1m.
  • the radar sensor is only hindered by the material of the door when measuring distance. Compared with a dirty door, at the same detection distance, the actual distance measured by the radar sensor will increase. As the measured distance increases, the refrigerator will perform corresponding operations in advance when the user is far away, causing the problem of false triggering.
  • an embodiment of the present disclosure provides a method for controlling a refrigerator, including:
  • the refrigerator obtains the first interval between the radar sensor detecting the user and the user operating the refrigerator.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the first interval time.
  • the radar sensor detects the user moving toward the refrigerator, there is a possibility that the user intends to operate the refrigerator, and the refrigerator performs corresponding operations in advance.
  • the user it is determined that the user uses the refrigerator.
  • the first interval duration between the radar sensor detecting the user and the user operating the refrigerator is obtained to determine whether the timing is appropriate for the refrigerator to perform the corresponding operation in advance.
  • the sensitivity of the radar sensor is adjusted to change the detection distance so that the moment when the user is detected is changed, so as to control the timing of the refrigerator to perform the corresponding operation in advance within the expected range.
  • the timing of the operation of the refrigerator is changed, and the impact of door material and dirt on the sensitivity is reduced to improve the reliability of the radar sensor in the refrigerator. If the radar sensor detects the user and the user does not operate the refrigerator, and then the radar sensor does not detect the user (leave), the sensitivity of the radar sensor will not be adjusted this time.
  • the above-mentioned user operation of the refrigerator refers to the user's operations of using the refrigerator such as touching the refrigerator door, touching the display screen, opening the door, etc.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator unlocks the display and lights up the light bar.
  • the refrigerator determines the timing duration as the first interval duration.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the first interval time.
  • timing is started as the starting point of the first interval duration. Since the user may intend to use the refrigerator when the user is detected, the display is unlocked and the light bar is illuminated (the refrigerator door handle is heated when the heating function is available) to improve the user's comfort when using the refrigerator. When the user operates the refrigerator, the timing is stopped as the end of the first interval.
  • the first interval length between the detection of the user and the user's operation of the refrigerator is determined by timing, and the timing process is highly accurate, thereby improving the accuracy of the first interval length.
  • the refrigerator in step S210 obtains the first interval duration between the radar sensor detecting the user and the user operating the refrigerator, including: when the radar sensor detects the user, the refrigerator obtains the current first time. When the user operates the refrigerator, the refrigerator obtains the current second moment. The refrigerator determines the difference between the current second time and the current first time as the first interval length. In this way, when a user is detected, the current first time is used as the starting point of the first interval duration. When the user operates the refrigerator, the current second time is regarded as the end point of the first interval. The first interval between the detection of the user and the user's operation of the refrigerator is determined by making a difference between the two moments, which reduces the delay caused by the circuit and algorithm, thus improving the accuracy of the first interval.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator obtains the first interval between the radar sensor detecting the user and the user operating the refrigerator.
  • the refrigerator adjusts the sensitivity of the radar sensor based on the average interval time.
  • the first interval duration obtained this time is the effective duration, and the difference between the first interval duration and the historical interval duration is determined.
  • the average is the average interval length. According to the average interval length, adjust the sensitivity of the radar sensor to avoid adjusting the wrong direction due to large errors in the first interval length.
  • the first interval duration obtained this time is an invalid duration, keeping the sensitivity of the radar sensor unchanged and preventing misadjustment due to extreme values.
  • the sensitivity adjustment is based on the overall trend of the interval length to improve the reliability of the radar sensor in the refrigerator.
  • the above-mentioned historical interval duration refers to the n first interval durations obtained for the first n times when the refrigerator is running. Among them, n is a positive integer greater than 0.
  • determining the first interval duration in step S221 satisfies the preset condition including: when the first interval duration is greater than or equal to the third duration threshold and less than or equal to the fourth duration threshold, the refrigerator determines the first interval duration Meet preset conditions.
  • Determining that the first interval duration does not meet the preset conditions in step S226 includes: when the first interval duration is less than the third duration threshold, or greater than the fourth duration threshold, the refrigerator determines that the first interval duration does not meet the preset conditions. .
  • the value of the first interval duration is within a valid range, it is determined that the preset condition is met.
  • the preset condition is not met.
  • the refrigerator in step S221 determines that the average value of the first interval duration and the historical interval duration is the average interval duration, including: the refrigerator determines the duration sum of the first interval duration and the historical interval duration.
  • the refrigerator determines the average interval based on the duration and value. In this way, by calculating the average of all interval durations, the average interval duration is accurately determined, thereby improving the accuracy of sensitivity adjustment of the radar sensor.
  • the value range of the third duration threshold is [0.4, 0.8]s.
  • the third duration threshold value is 0.5s, 0.6s or 0.7s.
  • the value range of the fourth duration threshold is [2.5, 3.5]s.
  • the fourth duration threshold value is 2.8s, 3s or 3.2s. In this way, when the value of the third duration threshold is within the above range, erroneous adjustment of sensitivity caused by user running (accidental behavior) can be reduced. For example, when the user moves normally, the radar sensor can generally detect the user within 1 to 2 meters, and the corresponding first interval is 1 to 2 seconds. When the user runs, the corresponding first interval duration will be lower than the Three duration thresholds.
  • the average interval length will be greatly reduced, resulting in incorrect adjustment of sensitivity.
  • the smaller first interval duration is eliminated through the third duration threshold, thereby reducing the possibility of erroneous adjustment of sensitivity and improving the reliability of the radar sensor in the refrigerator.
  • the value of the fourth duration threshold is within the above range, erroneous adjustment of sensitivity caused by user delay (accidental behavior) can be reduced. For example, when the user stands in front of the refrigerator door thinking or performing other activities and then operates the refrigerator, the corresponding first interval duration will be higher than the fourth duration threshold. If this first interval length is used, the average interval length will be greatly increased, resulting in incorrect adjustment of sensitivity.
  • the larger first interval duration is eliminated through the fourth duration threshold, thereby reducing the possibility of erroneous adjustment of sensitivity and improving the reliability of the radar sensor in the refrigerator.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator obtains the first interval between the radar sensor detecting the user and the user operating the refrigerator.
  • the sensitivity is adjusted by changing the detection distance of the radar sensor.
  • the radar sensor detects the user prematurely, and the detection distance needs to be reduced to reduce the first interval duration obtained next time. .
  • the radar sensor detects the user too late, and the detection distance needs to be increased to increase the first interval duration obtained next time.
  • the average interval duration is greater than or equal to the second duration threshold and less than or equal to the first duration threshold, the timing at which the radar sensor detects the user is within the expected range, and the detection distance remains unchanged.
  • the first interval duration is controlled between the expected first duration threshold and the second duration threshold, so as to improve the reliability of the radar sensor in the refrigerator.
  • the value range of the first duration threshold is [1.8, 2.2]s.
  • the first duration threshold value is 1.9s, 2s or 2.1s.
  • the value range of the second duration threshold is [0.9, 1.3]s.
  • the second duration threshold value is 1s, 1.1s or 1.2s.
  • the user walks to the refrigerator door and the refrigerator performs the corresponding operation. Because the refrigerator operates late, it affects the user's use. For example, the display screen is not unlocked in time, and the user's touch on the display screen is not reflected. If the light bar does not light up, the user thinks the refrigerator is malfunctioning. Refrigerator door handle was not added in time It is hot and the user still feels uncomfortable when using it.
  • the refrigerator in step S223 reduces the detection distance of the radar sensor
  • the refrigerator in step S224 increases the detection distance of the radar sensor, each time reducing or increasing a fixed detection distance. For example, each time it decreases or increases by 0.1m, 0.2m or 0.3m, etc.
  • the detection distance of the set radar sensor is different from the actual measured distance, it cannot be calculated specifically based on the material of the door and the degree of pollution (the degree of pollution will gradually change and will not be fixed).
  • the detection distance of the radar sensor is gradually adjusted to control the first interval duration obtained each time within the expected duration range to improve the reliability of the radar sensor in the refrigerator.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator obtains the first interval between the radar sensor detecting the user and the user operating the refrigerator.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the first interval time.
  • the refrigerator obtains the second interval between the user stopping operating the refrigerator and the radar sensor not detecting the user.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the second interval time.
  • the sensitivity of the radar sensor is adjusted again according to the length of time the user leaves the refrigerator.
  • the user stops operating the refrigerator it is determined that the user's use of the refrigerator has ended.
  • the radar sensor does not detect the user, the user has left the refrigerator and exceeded the area measured by the radar sensor.
  • Obtain the second interval duration between the user stopping operating the refrigerator and the radar sensor not detecting the user and adjust the sensitivity of the radar sensor to change the detection distance according to the second interval duration so that the time when the user is not detected changes. Since the second interval duration and the first interval duration represent two opposite operating states of the user, adjusting the sensitivity of the radar sensor through the second interval duration can improve the speed and reliability of sensitivity adjustment.
  • the refrigerator in step S230 obtains the second interval duration between the user stopping operating the refrigerator and the radar sensor not detecting the user, including: when the user stops operating the refrigerator, the refrigerator obtains the current third time.
  • the refrigerator locks the display and turns off the light strip.
  • the refrigerator obtains the current fourth moment.
  • the refrigerator determines the difference between the current fourth time and the current third time as the second interval duration. In this way, when the user stops operating the refrigerator, the current third time is used as the starting point of the second interval duration.
  • the display is locked and the light strip is turned off to prevent accidental touches and reduce power consumption.
  • the detection result of the radar sensor changes from detecting the user to not detecting the user, and the current fourth moment is regarded as the end point of the second interval duration.
  • the interval between when the user stops operating the refrigerator and when the user is not detected is determined by making a difference between two moments, which reduces the delay caused by the circuit and algorithm, thereby improving the accuracy of the second interval.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator obtains the first interval between the radar sensor detecting the user and the user operating the refrigerator.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the first interval time.
  • the refrigerator obtains the second interval between the user stopping operating the refrigerator and the radar sensor not detecting the user.
  • the second interval length is directly used to adjust the detection distance of the radar sensor.
  • the radar sensor detects the user prematurely, and the detection distance needs to be reduced to reduce the first interval duration obtained next time.
  • the second interval duration is less than the second duration threshold and greater than or equal to the third duration threshold, the radar sensor detects the user too late, and the detection distance needs to be increased to increase the first interval duration obtained next time.
  • the timing of the radar sensor detecting the user is within the expected range and the detection distance remains unchanged.
  • the second interval duration is greater than the fourth duration threshold or less than the third duration threshold, the second interval duration is an extreme value and needs to be eliminated, keeping the detection distance unchanged.
  • the first interval duration is controlled between the expected first duration threshold and the second duration threshold, so as to improve the reliability of the radar sensor in the refrigerator.
  • an embodiment of the present disclosure provides another method for controlling a refrigerator, including:
  • the refrigerator control radar sensor detects the user's current first distance.
  • the refrigerator control radar sensor detects the user's current second distance.
  • the refrigerator determines the timing duration as the first interval duration.
  • the refrigerator determines the difference between the current second distance and the current first distance as the first separation distance.
  • the refrigerator corrects the first interval duration based on the first interval distance.
  • the refrigerator adjusts the sensitivity of the radar sensor according to the first interval time.
  • the method for controlling a refrigerator provided by an embodiment of the present disclosure is used to detect the current first distance and the current second distance, calculate the first interval distance, and determine the measured distance that the user moved within the first interval duration.
  • the first separation distance is different from the actual distance moved by the user, it can reflect the degree of distance deviation.
  • the first interval duration is corrected according to the first interval distance, thereby improving the accuracy of radar sensor sensitivity adjustment.
  • the refrigerator in step S253 corrects the first interval duration based on the first interval distance, including: the refrigerator determines the second interval distance based on the first interval duration.
  • the refrigerator determines the current distance offset rate based on the first separation distance and the second separation distance.
  • the refrigerator determines the offset rate difference between the current distance offset rate and the previous distance offset rate. In the case where the offset rate difference is greater than zero, the refrigerator increases the first interval duration. In the case where the offset rate difference is less than zero, the refrigerator decreases the first interval duration.
  • a certain error is allowed (greater than the upper error limit or less than the lower error limit).
  • the first interval duration can be increased or decreased by a fixed value each time, such as 0.1s, 0.3s or 0.5s, etc.
  • the first interval duration can be corrected by looking up the corresponding adjustment duration by looking up a table based on the difference between the offset rate difference and zero. The larger the offset rate difference, the longer the adjustment time.
  • the second separation distance can be determined based on the first separation duration and the user's movement speed (preset or determined through learning).
  • the current distance offset rate is determined by dividing the first separation distance and the second separation distance. If the first interval duration is accurate, the offset rate difference should be zero (proportional change). In the case where the offset rate difference is greater than zero, the first interval duration is shorter than actual and needs to be increased for correction. When the offset rate difference is less than zero, the first interval duration is longer than actual and needs to be reduced for correction.
  • the first interval duration is corrected by the first interval distance to make the first interval duration more accurate, thereby improving the accuracy of radar sensor sensitivity adjustment.
  • an embodiment of the present disclosure provides a device for controlling a refrigerator, including a processor (processor) 41 and a memory (memory) 42.
  • the device may also include a communication interface (Communication Interface) 43 and a bus 44.
  • the processor 41, the communication interface 43, and the memory 42 can communicate with each other through the bus 44.
  • the communication interface 43 can be used for information transmission.
  • the processor 41 can call logical instructions in the memory 42 to execute the method for controlling the refrigerator in the above embodiment.
  • the above-mentioned logical instructions in the memory 42 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 42 can be used to store software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 41 executes the program instructions/modules stored in the memory 42 to execute functional applications and data processing, that is, to implement the method for controlling the refrigerator in the above embodiment.
  • the memory 42 may include a program storage area and a data storage area, where the program storage area may store an operating system and an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, etc.
  • the memory 42 may include high-speed random access memory, and may also include non-volatile memory.
  • An embodiment of the present disclosure provides a refrigerator, including the above-mentioned device for controlling the refrigerator.
  • Embodiments of the present disclosure provide a storage medium that stores computer-executable instructions, and the computer-executable instructions are configured to execute the above method for controlling a refrigerator.
  • the above-mentioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium. quality.
  • An embodiment of the present disclosure provides a computer program that, when executed by a computer, causes the computer to implement the above-mentioned device for controlling a refrigerator.
  • Embodiments of the present disclosure provide a computer program product.
  • the computer program product includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer implements the above-mentioned control of a refrigerator. installation.
  • the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure.
  • the aforementioned storage media can be non-transitory storage media, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.
  • the term “and/or” as used in this application is intended to encompass any and all possible combinations of one or more of the associated listed items.
  • the term “comprise” and its variations “comprises” and/or “comprising” and the like refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element defined by the statement “comprises a" does not exclude the presence of additional identical elements in a process, method or apparatus including the stated element.
  • each embodiment may focus on its differences from other embodiments, and the same and similar parts among various embodiments may be referred to each other.
  • the relevant parts can be referred to the description of the method part.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units may only be a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined. Either it can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more components for implementing the specified logical function(s).
  • Executable instructions may be included in the block.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two consecutive blocks may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

提供一种用于控制冰箱的方法，冰箱包括用于检测箱门前是否存在用户的雷达传感器，方法包括：获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长(S210)；根据第一间隔时长，调整雷达传感器的灵敏度(S220)。获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长(S210)，确定冰箱预先执行相应操作的时机是否合适。根据第一间隔时长，调整雷达传感器的灵敏度(S220)，将冰箱预先执行操作的时机控制在预期的范围内。通过调整雷达传感器的灵敏度改变冰箱预先执行操作的时机，减少箱门的材质和脏污对灵敏度的影响，以提高冰箱中雷达传感器的可靠性。

Description

用于控制冰箱的方法及装置、冰箱、存储介质
本申请基于申请号为202210722240.7、申请日为2022年6月24日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及智能家电技术领域，例如涉及一种用于控制冰箱的方法及装置、冰箱、存储介质。
背景技术
目前，随着智能化技术的发展，冰箱被赋予了越来越多的功能，以满足用户的需求。通过在冰箱中设置各种传感器，检测用户状态，并根据用户状态预先执行相应的操作。
相关技术中，一种用于控制冰箱的方法，包括：雷达传感器实时采集冰箱门体前人体的距离及位置信息。雷达传感器将人体的距离及位置信息传输给检测终端。检测终端对人体的距离及位置信息进行分析判断用户意图。若用户意图判断为无意经过冰箱，则不做处理。若用户意图判断为使用冰箱，则检测终端向加热终端发送加热指令。加热终端启动，对冰箱门把手进行加热。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
该方法能够通过雷达传感器检测人体的距离，并根据人体的距离进行用户意图的预判，确定是否加热冰箱门把手。但是，雷达传感器设置于箱门时，由于箱门的材质和脏污程度的不同，雷达传感器的灵敏度会受到影响。雷达传感器实际检测的距离和预期检测的距离会发生偏差，影响冰箱执行相应操作的时机，导致雷达传感器的可靠性低。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种用于控制冰箱的方法及装置、冰箱、存储介质，以提高冰箱中雷达传感器的可靠性。
在一些实施例中，所述冰箱包括用于检测箱门前是否存在用户的雷达传感器，所述方 法包括：获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长；根据第一间隔时长，调整雷达传感器的灵敏度。
可选地，根据第一间隔时长，调整雷达传感器的灵敏度，包括：在确定第一间隔时长满足预设条件的情况下，确定第一间隔时长与历史间隔时长的平均值为平均间隔时长；根据平均间隔时长，调整雷达传感器的灵敏度；在确定第一间隔时长不满足预设条件的情况下，保持雷达传感器的灵敏度不变。
可选地，根据平均间隔时长，调整雷达传感器的灵敏度，包括：在平均间隔时长大于第一时长阈值的情况下，减小雷达传感器的检测距离；在平均间隔时长小于第二时长阈值的情况下，增加雷达传感器的检测距离；在平均间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值的情况下，保持雷达传感器的检测距离不变；其中，通过改变雷达传感器的检测距离的方式对灵敏度进行调整。
可选地，确定第一间隔时长满足预设条件，包括：在第一间隔时长大于或等于第三时长阈值且小于或等于第四时长阈值的情况下，确定第一间隔时长满足预设条件；确定第一间隔时长不满足预设条件，包括：在第一间隔时长小于第三时长阈值，或，大于第四时长阈值的情况下，确定第一间隔时长不满足预设条件。
可选地，获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，包括：在雷达传感器检测到用户的情况下，开始计时；在用户操作冰箱的情况下，停止计时；将计时时长确定为第一间隔时长。
可选地，获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，包括：在雷达传感器检测到用户的情况下，获得当前第一时刻；在用户操作冰箱的情况下，获得当前第二时刻；将当前第二时刻与当前第一时刻的差值确定为第一间隔时长。
可选地，在根据第一间隔时长，调整雷达传感器的灵敏度之后，还包括：获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长；根据第二间隔时长，调整雷达传感器的灵敏度。
在一些实施例中，所述装置包括处理器和存储有程序指令的存储器，处理器被配置为在运行程序指令时，执行上述用于控制冰箱的方法。
在一些实施例中，所述冰箱包括：箱门；雷达传感器，设置于箱门，用于检测箱门前是否存在用户；和，上述用于控制冰箱的装置。
在一些实施例中，所述存储介质存储有程序指令，程序指令在运行时，执行上述用于控制冰箱的方法。
本公开实施例提供的用于控制冰箱的方法及装置、冰箱、存储介质，可以实现以下技 术效果：
在雷达传感器检测到用户的情况下用户朝冰箱方向移动，存在意图操作冰箱的可能，冰箱预先执行相应的操作。在用户操作冰箱的情况下，确定用户使用冰箱。获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，以确定冰箱预先执行相应操作的时机是否合适。根据第一间隔时长，调整雷达传感器的灵敏度改变检测距离使检测到用户的时刻发生变化，以将冰箱预先执行相应操作的时机控制在预期的范围内。通过调整雷达传感器的灵敏度改变冰箱执行操作的时机，减少箱门的材质和脏污对灵敏度的影响，以提高冰箱中雷达传感器的可靠性。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一个用于控制冰箱的方法的示意图；
图2是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图3是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图4是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图5是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图6是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图7是本公开实施例提供的另一个用于控制冰箱的方法的示意图；
图8是本公开实施例提供的一个用于控制冰箱的装置的示意图。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充分理解。然而，在没有这些细节的情况下，一个或多个实施例仍然可以实施。在其它情况下，为简化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当 情况下可以互换，以便这里描述的本公开实施例的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
除非另有说明，术语“多个”表示两个或两个以上。
本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
术语“对应”可以指的是一种关联关系或绑定关系，A与B相对应指的是A与B之间是一种关联关系或绑定关系。
目前，随着智能化技术的发展，冰箱被赋予了越来越多的功能，以满足用户的需求。通过在冰箱中设置多种传感器，检测用户状态，并根据用户状态预先执行相应的操作。例如，冰箱包括显示屏、灯条、加热装置等。当传感器检测到用户时，冰箱自动解锁显示屏以便用户进行操作、点亮灯条以欢迎用户使用、加热冰箱门把手以使门把手温度与用户体表温度接近等。当检测冰箱前是否有用户时，通过测距传感器测量用户与冰箱之间的距离确定。当用户位于测距传感器测量的区域时，确定冰箱前有用户。常用的测距传感器包括红外传感器、雷达传感器等。当采用红外传感器进行距离的检测时，受室内环境温度的影响，测量的距离会产生偏差导致红外传感器的可靠性低。因此，冰箱采用雷达传感器来提高检测距离的准确性。
本公开实施例提供一种冰箱，包括箱体、箱门和雷达传感器。箱门设置于箱体。雷达传感器设置于箱门，用于检测箱门前是否存在用户。当用户位于测距范围内时，确定箱门前存在用户。当雷达传感器在没有任何障碍物的情况下进行测距时，设置的检测距离即为实际测量的距离。由于冰箱中的雷达传感器设置于箱门，在进行测距时受箱门的材质和污染程度的阻碍，设置的检测距离大于实际测量的距离。箱门的污染程度影响实际测量距离的原因在于，厨房中的油烟和水汽使箱门表面附着油脂和冷凝水层，油脂和冷凝水的介电损耗远大于空气导致实际测量的距离变小。例如，设置的检测距离为2m，实际测量的距离为1m。由于测量的距离减小，冰箱预先执行相应的操作会发生延时，影响用户体验。当用户对箱门进行清洁后，雷达传感器在进行测距时仅受箱门的材质的阻碍。相比于带有脏污的箱门，相同的检测距离下，雷达传感器实际测量的距离会有所增加。由于测量的距离增加，冰箱在用户距离较远时即预先执行相应的操作，发生误触发的问题。
结合图1所示，本公开实施例提供一种用于控制冰箱的方法，包括：
S210，冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长。
S220，冰箱根据第一间隔时长，调整雷达传感器的灵敏度。
采用本公开实施例提供的用于控制冰箱的方法，在雷达传感器检测到用户的情况下用户朝冰箱方向移动，存在意图操作冰箱的可能，冰箱预先执行相应的操作。在用户操作冰箱的情况下，确定用户使用冰箱。获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，以确定冰箱预先执行相应操作的时机是否合适。根据第一间隔时长，调整雷达传感器的灵敏度改变检测距离使检测到用户的时刻发生变化，以将冰箱预先执行相应操作的时机控制在预期的范围内。通过调整雷达传感器的灵敏度改变冰箱执行操作的时机，减少箱门的材质和脏污对灵敏度的影响，以提高冰箱中雷达传感器的可靠性。若雷达传感器检测到用户且用户未操作冰箱，而后雷达传感器未检测到用户(离开)，则本次不对雷达传感器的灵敏度进行调整。
上述的用户操作冰箱，是指用户触摸冰箱门、触摸显示屏、开启箱门等使用冰箱的操作。
结合图2所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S211，在雷达传感器检测到用户的情况下，冰箱开始计时。
S212，冰箱解锁显示屏并点亮灯条。
S213，在用户操作冰箱的情况下，冰箱停止计时。
S214，冰箱将计时时长确定为第一间隔时长。
S220，冰箱根据第一间隔时长，调整雷达传感器的灵敏度。
采用本公开实施例提供的用于控制冰箱的方法，在检测到用户的情况下，开始计时，作为第一间隔时长的起点。由于检测到用户时用户可能意图使用冰箱，解锁显示屏并点亮灯条(有加热功能时加热冰箱门把手)，以便提高用户使用冰箱时的舒适度。在用户操作冰箱的情况下，停止计时，作为第一间隔时长的终点。通过计时的方式确定从检测到用户和用户操作冰箱之间的第一间隔时长，计时过程的精度高，从而提高了第一间隔时长的准确性。
可选地，步骤S210中的冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，包括：在雷达传感器检测到用户的情况下，冰箱获得当前第一时刻。在用户操作冰箱的情况下，冰箱获得当前第二时刻。冰箱将当前第二时刻与当前第一时刻的差值确定为第一间隔时长。这样，在检测到用户的情况下，将当前第一时刻作为第一间隔时长的起点。在用户操作冰箱的情况下，将当前第二时刻作为第一间隔时长的终点。通过两个时刻作差的方式确定从检测到用户和用户操作冰箱之间的第一间隔时长，减少了电路和算法带来的延时，从而提高了第一间隔时长的准确性。
结合图3所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S210，冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长。
S221，在确定第一间隔时长满足预设条件的情况下，冰箱确定第一间隔时长与历史间隔时长的平均值为平均间隔时长。
S222，冰箱根据平均间隔时长，调整雷达传感器的灵敏度。
S226，在确定第一间隔时长不满足预设条件的情况下，冰箱保持雷达传感器的灵敏度不变。
采用本公开实施例提供的用于控制冰箱的方法，在确定第一间隔时长满足预设条件的情况下，本次获取的第一间隔时长为有效时长，确定第一间隔时长与历史间隔时长的平均值为平均间隔时长。根据平均间隔时长，调整雷达传感器的灵敏度，避免因第一间隔时长的误差大而导致调整方向错误。在确定第一间隔时长不满足预设条件的情况下，本次获取的第一间隔时长为无效时长，保持雷达传感器的灵敏度不变防止因极端值而导致的误调整。通过根据平均间隔时长调整雷达传感器的灵敏度，灵敏度的调整依据于间隔时长的整体趋势，以提高冰箱中雷达传感器的可靠性。
上述的历史间隔时长，是指当冰箱运行时，前n次获得的n个第一间隔时长。其中，n为大于0的正整数。
可选地，步骤S221中的确定第一间隔时长满足预设条件，包括：在第一间隔时长大于或等于第三时长阈值且小于或等于第四时长阈值的情况下，冰箱确定第一间隔时长满足预设条件。步骤S226中的确定第一间隔时长不满足预设条件，包括：在第一间隔时长小于第三时长阈值，或，大于第四时长阈值的情况下，冰箱确定第一间隔时长不满足预设条件。这样，当第一间隔时长的取值在有效的范围内时，确定满足预设条件。当第一间隔时长的取值在有效的范围外时，确定不满足预设条件。通过剔除极端时长的方式，减少了极端时长对平均间隔时长的影响，以提高冰箱中雷达传感器的可靠性。
可选地，步骤S221中的冰箱确定第一间隔时长与历史间隔时长的平均值为平均间隔时长，包括：冰箱确定第一间隔时长与历史间隔时长的时长和值。冰箱根据时长和值，确定平均间隔时长。这样，通过计算所有间隔时长的平均值，准确的确定平均间隔时长，从而提高了雷达传感器的灵敏度调整的准确性。
可选地，第三时长阈值的取值范围为[0.4，0.8]s。优选地，第三时长阈值取值为0.5s、0.6s或0.7s。第四时长阈值的取值范围为[2.5，3.5]s。优选地，第四时长阈值取值为2.8s、3s或3.2s。这样，当第三时长阈值的取值在上述范围时，能够降低因用户跑动(偶然行为)而带来的灵敏度的误调整。例如，当用户正常移动时，雷达传感器一般在1～2m即可检测到用户，对应的第一间隔时长为1～2s。当用户进行跑动时，对应的第一间隔时长会低于第 三时长阈值。如果使用该第一间隔时长，会大幅降低平均间隔时长，导致灵敏度的误调整。通过第三时长阈值将较小的第一间隔时长剔除，减少了灵敏度的误调整的可能，以提高冰箱中雷达传感器的可靠性。当第四时长阈值的取值在上述范围时，能够降低因用户延时(偶然行为)而带来的灵敏度的误调整。例如，当用户站在冰箱门前思考或进行其他活动而后操作冰箱时，对应的第一间隔时长会高于第四时长阈值。如果使用该第一间隔时长，会大幅升高平均间隔时长，导致灵敏度的误调整。通过第四时长阈值将较大的第一间隔时长剔除，减少了灵敏度的误调整的可能，以提高冰箱中雷达传感器的可靠性。
结合图4所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S210，冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长。
S221，在确定第一间隔时长满足预设条件的情况下，冰箱确定第一间隔时长与历史间隔时长的平均值为平均间隔时长。
S223，在平均间隔时长大于第一时长阈值的情况下，冰箱减小雷达传感器的检测距离。
S224，在平均间隔时长小于第二时长阈值的情况下，冰箱增加雷达传感器的检测距离。
S225，在平均间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值的情况下，冰箱保持雷达传感器的检测距离不变。
其中，通过改变雷达传感器的检测距离的方式对灵敏度进行调整。
采用本公开实施例提供的用于控制冰箱的方法，在平均间隔时长大于第一时长阈值的情况下，雷达传感器过早的检测到了用户，需要减小检测距离以降低下次获得的第一间隔时长。在平均间隔时长小于第二时长阈值的情况下，雷达传感器过晚的检测到了用户，需要增加检测距离以升高下次获得的第一间隔时长。在平均间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值的情况下，雷达传感器检测到用户的时机在预期的范围，保持检测距离不变。通过对雷达传感器的检测距离进行调整，将第一间隔时长控制在预期的第一时长阈值和第二时长阈值之间，以提高冰箱中雷达传感器的可靠性。
可选地，第一时长阈值的取值范围为[1.8，2.2]s。优选地，第一时长阈值取值为1.9s、2s或2.1s。第二时长阈值的取值范围为[0.9，1.3]s。优选地，第二时长阈值取值为1s、1.1s或1.2s。这样，当第一时长阈值和第二时长阈值的取值在上述范围时，冰箱能够在降低功耗的基础上，以合适的时机提前进行执行相应操作从而提高用户体验。具体的，当第一间隔时长大于第一时长阈值时，用户在距离冰箱很远时，冰箱即执行相应操作。由于冰箱的动作较早，导致额外功耗的产生。当第一间隔时长小于第二时长阈值时，用户走到冰箱门前，冰箱才执行相应操作。由于冰箱的动作较晚，影响用户的使用。例如，显示屏未及时解锁，用户触摸显示屏没有反映。灯条未点亮，用户认为冰箱故障。冰箱门把手未及时加 热，用户使用时仍有不适感。
可选地，步骤S223中的冰箱减小雷达传感器的检测距离，和步骤S224中的冰箱增加雷达传感器的检测距离，为每次减小或增加固定的检测距离。例如每次减小或增加0.1m、0.2m或0.3m等。这样，由于设置的雷达传感器的检测距离与实际测量的距离不同，且无法根据箱门的材质和污染程度具体进行计算(污染程度会逐渐发生变化，不会固定不变)。通过每次进行固定值的加减，逐渐调整雷达传感器的检测距离将每次获得的第一间隔时长控制在预期的时长范围内，以提高冰箱中雷达传感器的可靠性。
结合图5所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S210，冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长。
S220，冰箱根据第一间隔时长，调整雷达传感器的灵敏度。
S230，冰箱获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长。
S240，冰箱根据第二间隔时长，调整雷达传感器的灵敏度。
采用本公开实施例提供的用于控制冰箱的方法，在用户操作冰箱结束后，根据用户离开冰箱的时长对雷达传感器的灵敏度进行再次调整。在用户停止操作冰箱的情况下，确定用户使用冰箱结束。在雷达传感器未检测到用户的情况下，用户已经离开冰箱并超出雷达传感器测量的区域。获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长，并根据第二间隔时长，调整雷达传感器的灵敏度改变检测距离使未检测到用户的时刻发生变化。由于第二间隔时长与第一间隔时长表示用户相反的两种操作状态，通过第二间隔时长对雷达传感器的灵敏度进行调整，能够提高灵敏度调整的速度和可靠性。
可选地，步骤S230中的冰箱获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长，包括：在用户停止操作冰箱的情况下，冰箱获得当前第三时刻。冰箱锁定显示屏并熄灭灯条。在雷达传感器未检测到用户的情况下，冰箱获得当前第四时刻。冰箱将当前第四时刻与当前第三时刻的差值确定为第二间隔时长。这样，在用户停止操作冰箱的情况下，将当前第三时刻作为第二间隔时长的起点。由于用户停止使用冰箱，锁定显示屏并熄灭灯条，防止误触并降低功耗。在用户从雷达传感器测量的区域走到区域外的情况下，雷达传感器的检测结果由检测到用户转变为未检测到用户，将当前第四时刻作为第二间隔时长的终点。通过两个时刻作差的方式确定从用户停止操作冰箱至未检测到用户的间隔时长，减少了电路和算法带来的延时，从而提高了第二间隔时长的准确性。
结合图6所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S210，冰箱获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长。
S220，冰箱根据第一间隔时长，调整雷达传感器的灵敏度。
S230，冰箱获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长。
S241，在第二间隔时长大于第一时长阈值且小于或等于第四时长阈值的情况下，冰箱减小雷达传感器的检测距离。
S242，在第二间隔时长大于或等于第三时长阈值且小于第二时长阈值的情况下，冰箱增加雷达传感器的检测距离。
S243，在第二间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值，或，第二间隔时长大于第四时长阈值，或，第二间隔时长小于第三时长阈值的情况下，冰箱保持雷达传感器的检测距离不变。
采用本公开实施例提供的用于控制冰箱的方法，由于用户在停止操作冰箱后，会及时的离开冰箱，直接采用第二间隔时长对雷达传感器的检测距离进行调整。在第二间隔时长大于第一时长阈值且小于或等于第四时长阈值的情况下，雷达传感器过早的检测到了用户，需要减小检测距离以降低下次获得的第一间隔时长。在第二间隔时长小于第二时长阈值且大于或等于第三时长阈值的情况下，雷达传感器过晚的检测到了用户，需要增加检测距离以升高下次获得的第一间隔时长。在第二间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值的情况下，雷达传感器检测用户的时机在预期的范围，保持检测距离不变。在第二间隔时长大于第四时长阈值或小于第三时长阈值的情况下，第二间隔时长为极端值需要剔除，保持检测距离不变。通过对雷达传感器的检测距离进行调整，将第一间隔时长控制在预期的第一时长阈值和第二时长阈值之间，以提高冰箱中雷达传感器的可靠性。
结合图7所示，本公开实施例提供另一种用于控制冰箱的方法，包括：
S211，在雷达传感器检测到用户的情况下，冰箱开始计时。
S250，冰箱控制雷达传感器检测用户的当前第一距离。
S213，在用户操作冰箱的情况下，冰箱停止计时。
S251，冰箱控制雷达传感器检测用户的当前第二距离。
S214，冰箱将计时时长确定为第一间隔时长。
S252，冰箱将当前第二距离和当前第一距离的差值确定为第一间隔距离。
S253，冰箱根据第一间隔距离，修正第一间隔时长。
S220，冰箱根据第一间隔时长，调整雷达传感器的灵敏度。
采用本公开实施例提供的用于控制冰箱的方法，检测当前第一距离和当前第二距离，并计算第一间隔距离，确定测量的用户在第一间隔时长内移动的距离。虽然第一间隔距离与用户实际移动的距离不同，但是能够反映距离偏差的程度。根据第一间隔距离，对第一间隔时长进行修正，从而提高了雷达传感器灵敏度调整的准确性。
可选地，步骤S253中的冰箱根据第一间隔距离，修正第一间隔时长，包括：冰箱根据第一间隔时长，确定第二间隔距离。冰箱根据第一间隔距离和第二间隔距离，确定当前距离偏移率。冰箱确定当前距离偏移率和前次距离偏移率的偏移率差值。在偏移率差值大于零的情况下，冰箱增加第一间隔时长。在偏移率差值小于零的情况下，冰箱减小第一间隔时长。其中，在偏移率差值与零进行比较时，允许存在一定的误差(大于误差上限或小于误差下限)。第一间隔时长，可以每次增加或减小固定的值，例如0.1s、0.3s或0.5s等。或者，也可以根据偏移率差值与零相差的值，通过查表的方式查找对应的调整时长，对第一间隔时长进行修正。偏移率差值越大，调整时长越大。这样，根据第一间隔时长与用户移动的速度(预设或通过学习确定)，能够确定第二间隔距离。通过第一间隔距离与第二间隔距离进行除法运算，确定当前距离偏移率。在第一间隔时长准确的情况下，偏移率差值应为零(同比例变化)。在偏移率差值大于零的情况下，第一间隔时长比实际短，需要增加进行修正。在偏移率差值小于零的情况下，第一间隔时长比实际长，需要减小进行修正。通过第一间隔距离对第一间隔时长进行修正，使第一间隔时长更加准确，从而提高了雷达传感器灵敏度调整的准确性。
结合图8所示，本公开实施例提供一种用于控制冰箱的装置，包括处理器(processor)41和存储器(memory)42。可选地，该装置还可以包括通信接口(Communication Interface)43和总线44。其中，处理器41、通信接口43、存储器42可以通过总线44完成相互间的通信。通信接口43可以用于信息传输。处理器41可以调用存储器42中的逻辑指令，以执行上述实施例的用于控制冰箱的方法。
此外，上述的存储器42中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器42作为一种存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令/模块。处理器41通过运行存储在存储器42中的程序指令/模块，从而执行功能应用以及数据处理，即实现上述实施例中用于控制冰箱的方法。
存储器42可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器42可以包括高速随机存取存储器，还可以包括非易失性存储器。
本公开实施例提供了一种冰箱，包含上述的用于控制冰箱的装置。
本公开实施例提供了一种存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述用于控制冰箱的方法。
上述的存储介质可以是暂态计算机可读存储介质，也可以是非暂态计算机可读存储介 质。
本公开实施例提供了一种计算机程序，当所述计算机程序被计算机执行时，使所述计算机实现上述用于控制冰箱的装置。
本公开实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机指令，当所述程序指令被计算机执行时，使所述计算机实现上述用于控制冰箱的装置。
本公开实施例的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。而且，本申请中使用的用词仅用于描述实施例并且不用于限制权利要求。如在实施例以及权利要求的描述中使用的，除非上下文清楚地表明，否则单数形式的“一个”(a)、“一个”(an)和“所述”(the)旨在同样包括复数形式。类似地，如在本申请中所使用的术语“和/或”是指包含一个或一个以上相关联的列出的任何以及所有可能的组合。另外，当用于本申请中时，术语“包括”(comprise)及其变型“包括”(comprises)和/或包括(comprising)等指陈述的特征、整体、步骤、操作、元素，和/或组件的存在，但不排除一个或一个以上其它特征、整体、步骤、操作、元素、组件和/或这些的分组的存在或添加。在没有更多限制的情况下，由语句“包括一个…”限定的要素，并不排除在包括所述要素的过程、方法或者设备中还存在另外的相同要素。本文中，每个实施例重点说明的可以是与其他实施例的不同之处，各个实施例之间相同相似部分可以互相参见。对于实施例公开的方法、产品等而言，如果其与实施例公开的方法部分相对应，那么相关之处可以参见方法部分的描述。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，可以取决于技术方案的特定应用和设计约束条件。所述技术人员可以对每个特定的应用来使用不同方法以实现所描述的功能，但是这种实现不应认为超出本 公开实施例的范围。所述技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例。另外，在本公开实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
附图中的流程图和框图显示了根据本公开实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。在附图中的流程图和框图所对应的描述中，不同的方框所对应的操作或步骤也可以以不同于描述中所披露的顺序发生，有时不同的操作或步骤之间不存在特定的顺序。例如，两个连续的操作或步骤实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。

Claims (12)

  1. 一种用于控制冰箱的方法，冰箱包括用于检测箱门前是否存在用户的雷达传感器，其特征在于，所述方法包括：
    获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长；
    根据第一间隔时长，调整雷达传感器的灵敏度。
  2. 根据权利要求1所述的方法，其特征在于，根据第一间隔时长，调整雷达传感器的灵敏度，包括：
    在确定第一间隔时长满足预设条件的情况下，确定第一间隔时长与历史间隔时长的平均值为平均间隔时长；根据平均间隔时长，调整雷达传感器的灵敏度；
    在确定第一间隔时长不满足预设条件的情况下，保持雷达传感器的灵敏度不变。
  3. 根据权利要求2所述的方法，其特征在于，根据平均间隔时长，调整雷达传感器的灵敏度，包括：
    在平均间隔时长大于第一时长阈值的情况下，减小雷达传感器的检测距离；
    在平均间隔时长小于第二时长阈值的情况下，增加雷达传感器的检测距离；
    在平均间隔时长大于或等于第二时长阈值且小于或等于第一时长阈值的情况下，保持雷达传感器的检测距离不变；
    其中，通过改变雷达传感器的检测距离的方式对灵敏度进行调整。
  4. 根据权利要求3所述的方法，其特征在于，
    确定第一间隔时长满足预设条件，包括：在第一间隔时长大于或等于第三时长阈值且小于或等于第四时长阈值的情况下，确定第一间隔时长满足预设条件；
    确定第一间隔时长不满足预设条件，包括：在第一间隔时长小于第三时长阈值，或，大于第四时长阈值的情况下，确定第一间隔时长不满足预设条件。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，包括：
    在雷达传感器检测到用户的情况下，开始计时；
    在用户操作冰箱的情况下，停止计时；
    将计时时长确定为第一间隔时长。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，获得雷达传感器检测到用户和用户操作冰箱之间的第一间隔时长，包括：
    在雷达传感器检测到用户的情况下，获得当前第一时刻；
    在用户操作冰箱的情况下，获得当前第二时刻；
    将当前第二时刻与当前第一时刻的差值确定为第一间隔时长。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，在根据第一间隔时长，调整雷达传感器的灵敏度之后，还包括：
    获得用户停止操作冰箱和雷达传感器未检测到用户之间的第二间隔时长；
    根据第二间隔时长，调整雷达传感器的灵敏度。
  8. 一种用于控制冰箱的装置，包括处理器和存储有程序指令的存储器，其特征在于，所述处理器被配置为在运行所述程序指令时，执行如权利要求1至7任一项所述的用于控制冰箱的方法。
  9. 一种冰箱，其特征在于，包括：
    箱门；
    雷达传感器，设置于箱门，用于检测箱门前是否存在用户；和，
    如权利要求8所述的用于控制冰箱的装置。
  10. 一种存储介质，存储有程序指令，其特征在于，所述程序指令在运行时，执行如权利要求1至7任一项所述的用于控制冰箱的方法。
  11. 一种计算机程序，当所述计算机程序被计算机执行时，使所述计算机实现如权利要求1至7任一项所述的用于控制冰箱的方法。
  12. 一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机指令，当所述程序指令被计算机执行时，使所述计算机实现如权利要求1至7任一项所述的用于控制冰箱的方法。
PCT/CN2023/077545 2022-06-24 2023-02-22 用于控制冰箱的方法及装置、冰箱、存储介质 WO2023246137A1 (zh)

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