CN115615123A - Method and device for controlling refrigerator, refrigerator - Google Patents

Abstract

The present application relates to the technical field of smart home appliances, and discloses a method for controlling a refrigerator. The method includes: obtaining the Wi-Fi signal of the environment where the user is located when obtaining the operation intention of the user to open the refrigerator; determining the user's Wi-Fi signal according to the Wi-Fi signal. Sign information: According to the user's sign information, determine the current status of the user, and push ingredients that meet the current status to the user. On the basis of obtaining user status through non-intrusive and non-disturbing detection methods and avoiding violation of user privacy, food materials can be pushed to users more accurately through user's physical signs information, thereby improving the intelligence level of the refrigerator and providing users with Better user experience. The application also discloses a device for controlling the refrigerator and the refrigerator.

Description

Method and device for controlling refrigerator, refrigerator

technical field

The present application relates to the technical field of smart home appliances, for example, to a method and device for controlling a refrigerator, and a refrigerator.

Background technique

At present, with the advancement of technology and the improvement of people's living standards, more and more people start to pay attention to the development of smart home and pursue a more intelligent home appliance control experience. Taking the refrigerator as an example, the user can set the push conditions related to the food information in the refrigerator, and push the qualified information to the user through the display screen of the refrigerator or the smart terminal. This push method can only push according to the condition of the ingredients in the refrigerator and the conditions set by the user, but cannot push different ingredients according to the real-time status of the user, so the refrigerator is not highly intelligent.

In order to improve the intelligence of refrigerators, in related technologies, the smart wearable devices worn by users, such as smart bracelets and watches, are used in conjunction with the image acquisition module of the refrigerator to detect the user's status, so as to push the user's information that matches the current status. Ingredients information. However, this method for obtaining user information requires contact detection through sensors, and there is a risk of violating user privacy, and the user experience is poor.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a method and device for controlling a refrigerator, and a refrigerator, which acquires a user's state through non-contact detection, and pushes food material information conforming to the current state for the user, so as to improve user experience.

In some embodiments, the method for controlling a refrigerator includes: when acquiring the operation intention of the user to turn on the refrigerator, acquiring a Wi-Fi signal of the environment where the user is located; determining the user's Wi-Fi signal according to the Wi-Fi signal Sign information: according to the user's sign information, determine the current state of the user, and push ingredients that meet the current state to the user.

Optionally, the determining the user's physical signs information according to the Wi-Fi signal includes: extracting channel state information in the Wi-Fi signal; analyzing and processing the channel state information to obtain the user's physical signs Information; wherein, the user's sign information includes the user's respiratory rate data and heart rate data.

Optionally, the analyzing and processing the channel state information to obtain the user's physical sign information includes: performing signal separation on the channel state information to obtain a breathing signal and a heartbeat signal; Feature extraction is performed on the signals respectively, and the respiratory rate data and heart rate data of the user are obtained.

Optionally, the acquisition of the respiratory signal and the heartbeat signal includes: filtering the separated respiratory information, extracting the respiratory information conforming to the filtering interval as the respiratory signal; decomposing the separated heartbeat information into a plurality of eigen modulus function, and use the integrated plurality of intrinsic modulus functions as the heartbeat signal.

Optionally, the determining the current state of the user according to the user's physical sign information includes: obtaining a user information table, the user information table stores at least one set of physical sign information of the user, and communicates with the user information table. The state information corresponding to the set sign information; obtain the set sign information matching the user sign information in the user information table; determine the state information corresponding to the successfully matched set sign information as the user's current status.

Optionally, the pushing the ingredients conforming to the current state to the user includes: determining the pushed ingredients conforming to the current state of the user in the ingredient information of the refrigerator, and displaying them on the display screen of the refrigerator.

Optionally, the determining the pushed ingredients in the refrigerator’s ingredient information that conform to the user’s current state includes: determining the corresponding ingredient range according to the user’s current state and current time information; The ingredients in the information that meet the range of ingredients are determined as the pushed ingredients.

Optionally, the method for controlling a refrigerator further includes: obtaining the information of the ingredients taken out by the user in the current state; and updating the The corresponding relationship between the user's status and the ingredients.

In some embodiments, the apparatus for controlling a refrigerator includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for controlling a refrigerator when executing the program instructions.

In some embodiments, the refrigerator includes the above-mentioned device for controlling the refrigerator.

The method and device for controlling a refrigerator, and the refrigerator provided in the embodiments of the present disclosure can achieve the following technical effects:

When the user has the operation intention to turn on the refrigerator, according to the Wi-Fi signal received by the refrigerator from the user's environment, determine the user's physical signs information, and then determine the corresponding current state, so that there is no need to use image acquisition modules and smart wearable devices. The user's status data is obtained through a contactless detection method, so as to push ingredients that meet the current status for the user. On the basis of obtaining user status through non-intrusive and non-disturbing detection methods and avoiding violation of user privacy, food materials can be pushed to users more accurately through user's physical signs information, thereby improving the intelligence level of the refrigerator and providing users with Better user experience.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

FIG. 1 is a schematic diagram of an implementation environment of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

Fig. 2 is a schematic flowchart of a method for controlling a refrigerator provided by an embodiment of the present disclosure;

Fig. 3 is a schematic flowchart of another method for controlling a refrigerator provided by an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of an apparatus for controlling a refrigerator provided by an embodiment of the present disclosure.

detailed description

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

The term "correspondence" may refer to an association relationship or a binding relationship, and the correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

In the embodiments of the present disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technologies, and network communication technologies into home appliances. They have the characteristics of intelligent control, intelligent perception, and intelligent applications. Relying on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips, for example, smart home appliances can realize remote control and management of smart home appliances by users by connecting electronic devices.

In the disclosed embodiments, a terminal device refers to an electronic device with a wireless connection function. The terminal device can communicate with the above-mentioned smart home appliance by connecting to the Internet, or directly communicate with the above-mentioned smart home appliance through Bluetooth, Wi-Fi, etc. device for communication. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built into a hover vehicle, or any combination thereof. The mobile device may include, for example, a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example, a smart watch, a smart bracelet, a pedometer, and the like.

Fig. 1 is a schematic diagram of an implementation environment of a method for controlling a refrigerator provided by an embodiment of the present disclosure. The implementation environment includes a refrigerator 11 and a wireless router 12 .

Wherein, the refrigerator 11 has a wireless Wi-Fi module for receiving Wi-Fi signals in the environment in real time (such as signals sent by the wireless router 12 ). The refrigerator and the user are in the same environment, and by extracting the channel status information from the received Wi-Fi signal in real time, the channel status information is analyzed and processed in real time, so as to realize the monitoring of the user's physical sign information.

In a smart home scenario, a refrigerator generally has a Wi-Fi module that can communicate wirelessly with other home appliances. Therefore, using the above method, user information can be directly monitored without adding other monitoring equipment, such as infrared acquisition modules, image acquisition modules, and smart wearable devices, which helps to reduce user costs and improve refrigerator usability.

In this solution, when the Wi-Fi signal sent by the wireless router 12 is transmitted, encountering a human body will change the transmission path of the signal, resulting in phenomena such as reflection, refraction, scattering and diffraction, which affect the normal transmission process of the signal , analyze the signal received by the refrigerator 11, and perceive the change of the state of the vital signs of the human body according to the disturbance information generated in the signal transmission. Specifically, this solution utilizes Channel State Information (CSI) in Wi-Fi electrical parameters, which can realize finer-grained perception, collect weak physiological signals, and obtain user's physical signs information, such as breathing and heartbeat signals.

Fig. 2 is a schematic flowchart of a method for controlling a refrigerator provided by an embodiment of the present disclosure. The method for controlling the refrigerator is applied in the environment shown in FIG. 1, and can be executed in the refrigerator shown in FIG. 1, such as by a processor of the refrigerator; it can also be executed at the control end of the refrigerator, such as by wireless communication with the refrigerator It can also be executed in a connected terminal device; it can also be executed in a server, such as a home cloud platform communicating with a refrigerator. In the embodiment of the present disclosure, the scheme is described by taking the processor of the refrigerator as an execution body.

As shown in Figure 2, the method for controlling the refrigerator includes:

In step S201, the processor of the refrigerator obtains the Wi-Fi signal of the environment where the user is located when obtaining the operation intention of the user to turn on the refrigerator.

Here, the acquisition of the user's operation intention may come from an instruction issued by the user to the refrigerator through the terminal device, such as an instruction to obtain food information in the refrigerator or an instruction to open the refrigerator door. It may also be that the refrigerator determines that the user has an operation intention to turn on the refrigerator according to the activation status of other smart home appliances, for example, according to the activation status of the stove, or the length of time the user stays in the kitchen. In this embodiment, the acquisition of the user's operation intention to turn on the refrigerator is determined by the distance between the user and the refrigerator. There is an operation intention to turn on the refrigerator, so that in this case, according to the user's physical sign information, food information that meets the user's current state can be pushed.

In other application scenarios, the refrigerator can also determine the user's operation intention on the refrigerator through the user's voice command. Or through the user's action, determine the user's operation intention on the refrigerator, such as: button, touch screen, knob, set gesture, etc. The refrigerator may also obtain the operation intention of opening the refrigerator issued by the user through the application program of the smartphone through communication with the smartphone.

The Wi-Fi signal of the environment where the user is located is obtained by using the communication relationship between the wireless router and the Wi-Fi module of the refrigerator.

In step S202, the processor of the refrigerator determines the physical sign information of the user according to the Wi-Fi signal.

Sign information refers to signs related to the user's physiological state. Different physiological states correspond to different sign information, so the user's current state can be determined by obtaining the user's sign information, and the corresponding ingredients can be pushed to the user. Here, the sign information may include one or more of the user's heart rate, respiratory rate, blood pressure, and pulse.

In step S203, the processor of the refrigerator determines the current state of the user according to the physical sign information of the user, and pushes ingredients that meet the current state to the user.

Here, by pushing the ingredients that meet the current state to the user, it is possible to push the corresponding ingredient information according to the user's individual needs for the types of ingredients based on different states. Specifically, the food information can be pushed through the display screen of the refrigerator or the application program installed on the terminal device.

In this way, the method for controlling the refrigerator provided by the embodiments of the present disclosure can determine the user's physical sign information according to the Wi-Fi signal of the user's environment received by the refrigerator when the user has the operation intention to turn on the refrigerator, and then determine the corresponding In this way, the user’s status data can be obtained through non-contact detection methods without using image acquisition modules and smart wearable devices, so as to push ingredients that meet the current status for users. On the basis of obtaining user status through non-intrusive and non-disturbing detection methods and avoiding violation of user privacy, food materials can be pushed to users more accurately through user's physical signs information, thereby improving the intelligence level of the refrigerator and providing users with Better user experience.

Optionally, determining the user's sign information according to the Wi-Fi signal includes: extracting channel state information from the Wi-Fi signal; analyzing and processing the channel state information to obtain the user's sign information; wherein the user's sign information includes The user's respiratory rate data and heart rate data. In this way, the user's respiratory rate data and heart rate data can be accurately obtained to determine the user's status, and the user does not need to wear smart wearable devices and other sensing devices, thereby reducing data acquisition costs and avoiding user privacy violations.

Here, extracting channel state information includes: extracting CSI raw data in the Wi-Fi signal, and using denoised CSI data as channel state information for subsequent analysis and processing. Optionally, the denoising step includes: performing outlier filtering on the original CSI data; performing linear interpolation on the CSI data after filtering out the outlier points; performing noise filtering on the interpolated CSI data.

Specifically, the removal of abnormal points is through the Hampel filter, using the signal mean value μ and absolute deviation σ within the set period to set the up and down fluctuation interval of the CSI raw data, and the signal data outside the up and down fluctuation interval are regarded as outliers filter out.

Optionally, analyzing and processing the channel state information to obtain the user's physical sign information includes: performing signal separation on the channel state information to obtain the breathing signal and the heartbeat signal; performing feature extraction on the breathing signal and the heartbeat signal respectively to obtain the user's breathing signal frequency data and heart rate data. Because the amplitude of chest movement caused by human breathing is too large, the amplitude caused by heartbeat is submerged in it. Therefore, it is necessary to separate the CSI information and extract the respiratory signal and heartbeat signal separately for related processing. In this way, by analyzing and processing the processed channel state information to accurately obtain the user's respiratory rate data and heart rate data to determine the user's state, the user does not need to wear sensing devices such as smart wearable devices, thereby reducing data acquisition costs. Avoid violating user privacy.

Specifically, the acquisition of the respiratory signal and the heartbeat signal includes: filtering the separated respiratory information, extracting the respiratory information conforming to the filtering interval as the respiratory signal; decomposing the separated heartbeat information into multiple eigenmode functions, and The integrated multiple eigenmode functions are used as the heartbeat signal.

Here, for the filtering processing of respiratory information, a Chebyshev filter band-pass filter can be used to extract the respiratory signal, and the filtering interval of the band-pass filter is set to 0.1-0.7 Hz according to the adult respiratory frequency characteristics.

For the decomposition and integration processing of the heartbeat information, the heartbeat signal can be reconstructed by using the Complete Ensemble Empirical Mode Decomposition (CEEMD) algorithm. The principle is to decompose the heartbeat signal into multiple eigenmode functions with different time-scale characteristics, perform Hilbert-Huang transform on each eigenmode function, and then integrate the decomposed signal frequency, amplitude, and phase information to obtain Construct a heartbeat signal with obvious waveform and complete features.

Further, the respiratory frequency in the respiratory signal is extracted through Fourier transform. For multiple periods in the respiratory signal, perform Fourier transform, and retain the peak value and two adjacent values of the peak value as the reserved signal; perform inverse Fourier transform on the reserved signal to obtain the time domain signal; convert the time domain signal The slope of is determined as the user's breathing rate.

Further, the user's heart rate is determined by extracting the QRS complex information in the heartbeat signal. For the integrated heartbeat information, the peak value of the R wave is detected and the position information of the R wave is determined, and based on the position information of the R wave, the peak value of the Q wave and the S wave is detected to determine the position information, thereby obtaining the user's heartbeat signal waveform, and Determine the user's heart rate. Specifically, the peak detection of the R wave includes: extracting a group of heartbeat signals, and determining the maximum point of the QRS waveform at one end by a differential method; using the adaptive threshold method to filter the extreme points below the threshold in the heartbeat signal; According to the slope of the filtered maximum point, the maximum point with the largest slope is determined to be the peak point of the R wave. Wherein, the selection of the threshold value is to obtain the largest maximum value point and the adjacent points of the changed point, and use the numerical average value of the above-mentioned multiple points as the threshold value. Since the position of the R peak is within one cycle of a single heartbeat signal, the heart rate can be obtained according to the position of the R peak:

HR＝60/ _RRperiod

Among them, HR represents the heart rate, and RR _period represents the time period between two R peaks.

Optionally, determining the user's physical sign information according to the Wi-Fi signal, and determining the user's current state include: determining the set physical sign information corresponding to the current user's physical sign information, and determining the state corresponding to the set physical sign information as the user's current state. state. Here, a user information table may be established to determine the corresponding current status according to the physical sign information of one or more users. The set temperature information table is pre-stored in the refrigerator or the terminal device.

Further, the determination of the current state of the user includes: obtaining a user information table, in which at least one set sign information of the user is stored, and state information corresponding to the set sign information; The set sign information matching the user sign information; the state information corresponding to the successfully matched set sign information is determined as the current state of the user.

Exemplarily, in this embodiment, the current state is determined according to the target user's heart rate information and respiratory rate information. Then, the determination of the above current state includes: obtaining the user information table, which stores the relationship between heart rate, respiratory rate and state; according to the heart rate interval corresponding to the detected user's heart rate, and the user's respiratory rate Corresponding respiratory rate intervals to jointly determine the user's state

Exemplarily, Table 1 provides a user information table, showing the relationship between heart rate, breathing rate and status.

Table 1

a1≤X<a2 a2≤X<a3 a3≤X<a4 a4≤X<a5 h1≤HR＜h2 fatigue hunger calm go quickly h2≤HR＜h3 hunger calm go quickly jogging h3≤HR＜h4 calm go quickly jogging run fast h4≤HR＜h5 go quickly jogging run fast fitness

For example, the vertical coordinates in Table 1 are used to represent the user's heart rate, the horizontal coordinates are used to represent the user's respiratory rate, and the content in the table is the user status. In the vertical column coordinates, HR is used to represent the detected heart rate of the user, and the values of h1-h5 gradually increase; in the horizontal column coordinates, X is used to represent the detected user's respiratory rate, and the values of a1-a5 gradually increase. Then, after acquiring the user's heart rate information and respiratory rate information, the corresponding user status is determined by calling the user information table, so as to further recommend ingredients for the user based on the user's current status.

Optionally, pushing ingredients conforming to the current state to the user includes: determining the ingredients in the refrigerator's ingredient information conforming to the user's current state, and displaying them on a display screen of the refrigerator. In this way, after obtaining the user's operation intention to turn on the refrigerator, the display screen of the refrigerator will push the ingredients in the refrigerator that meet the user's status to the user.

By obtaining the corresponding relationship between the user's status and the pushed ingredients, according to the detected user's current status, determine the corresponding range of pushable ingredients, and select the ingredients that meet the range of ingredients from the existing ingredient information in the refrigerator as the pushed ingredients .

Further, when determining the ingredients to be pushed, the ingredients can also be selected in combination with the current time information, so as to improve the accuracy of pushing the ingredients.

Specifically, determining the ingredients to be pushed in the refrigerator's ingredient information that conforms to the user's current state includes: determining the corresponding ingredient range according to the user's current state and current time information; .

Here, the user status, time information, and food range can be pre-stored in the refrigerator or terminal device in the form of a food information table for push selection of food.

In this way, the method for controlling the refrigerator provided by the embodiments of the present disclosure can determine the user's physical sign information according to the Wi-Fi signal of the user's environment received by the refrigerator when the user has the operation intention to turn on the refrigerator, and then determine the corresponding In this way, the user’s status data can be obtained through non-contact detection methods without using image acquisition modules and smart wearable devices, so as to push ingredients that meet the current status for users. On the basis of obtaining user status through non-intrusive and non-disturbing detection methods and avoiding violation of user privacy, food materials can be pushed to users more accurately through user's physical signs information, thereby improving the intelligence level of the refrigerator and providing users with Better user experience.

Fig. 3 is a schematic flowchart of a method for controlling a refrigerator provided by an embodiment of the present disclosure. The method for controlling the refrigerator is applied in the environment shown in FIG. 1, and can be executed in the refrigerator shown in FIG. 1, such as by a processor of the refrigerator; it can also be executed at the control end of the refrigerator, such as by wireless communication with the refrigerator It can also be executed in a connected terminal device; it can also be executed in a server, such as a home cloud platform communicating with a refrigerator. In the embodiment of the present disclosure, the scheme is described by taking the processor of the refrigerator as an execution body.

As shown in Figure 3, the method for controlling the refrigerator includes:

In step S201, the processor of the refrigerator obtains the Wi-Fi signal of the environment where the user is located when obtaining the operation intention of the user to turn on the refrigerator.

In step S202, the processor of the refrigerator determines the physical sign information of the user according to the Wi-Fi signal.

In step S203, the processor of the refrigerator determines the current state of the user according to the physical sign information of the user, and pushes ingredients that meet the current state to the user.

In step S304, the processor of the refrigerator obtains the information of the ingredients taken out by the user in the current state.

In step S305, the processor of the refrigerator updates the corresponding relationship between the user's status and the ingredients according to the taken-out ingredient information when the ingredient information taken out by the user does not match the pushed information.

By obtaining the information of the ingredients actually taken out by the user and comparing them with the push information of the ingredients, the accuracy of the push of the ingredients is determined, and if the push is inaccurate, the preset corresponding relationship is updated according to the ingredients actually taken out, so as to improve the next The accuracy of the push.

Here, the refrigerator can learn historical push information through deep learning algorithms, such as reinforcement learning and neural network algorithms, so as to improve the accuracy of push behavior.

As shown in FIG. 4 , an embodiment of the present disclosure provides an apparatus for controlling a refrigerator, including a processor (processor) 400 and a memory (memory) 401 . Optionally, the device may further include a communication interface (Communication Interface) 402 and a bus 403 . Wherein, the processor 400 , the communication interface 402 , and the memory 401 can communicate with each other through the bus 403 . Communication interface 402 may be used for information transfer. The processor 400 can invoke logic instructions in the memory 401 to execute the method for controlling a refrigerator in the above-mentioned embodiments.

In addition, the above-mentioned logic instructions in the memory 401 may be implemented in the form of software function units and may be stored in a computer-readable storage medium when sold or used as an independent product.

As a readable storage medium, the memory 401 can be used to store software programs and computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 400 executes the program instructions/modules stored in the memory 401 to execute functional applications and data processing, that is, implement the method for controlling the refrigerator in the above-mentioned embodiments.

The memory 401 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 401 may include a high-speed random access memory, and may also include a non-volatile memory.

An embodiment of the present disclosure provides a refrigerator, including a Wi-Fi module, and the above-mentioned device for controlling the refrigerator.

An embodiment of the present disclosure provides a readable storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned method for controlling a refrigerator.

The above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can 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 medium can be a non-transitory storage medium, 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. A medium that can store program code, or a transitory storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well unless the context clearly indicates otherwise . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones. Additionally, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. Said artisans may implement the described functions using different methods for each particular application, but such implementation should not be regarded as exceeding the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims (10)

1. A method for controlling a refrigerator, comprising: When obtaining the operation intention of the user to turn on the refrigerator, obtain the Wi-Fi signal of the environment where the user is located; determining the physical sign information of the user according to the Wi-Fi signal; According to the physical sign information of the user, the current state of the user is determined, and the ingredients that meet the current state are pushed to the user. 2. The method according to claim 1, wherein the determining the user's physical sign information according to the Wi-Fi signal comprises: Extracting channel state information in the Wi-Fi signal; Analyzing and processing the channel state information to obtain the physical sign information of the user; Wherein, the user's sign information includes the user's respiratory rate data and heart rate data. 3. The method according to claim 2, wherein the analyzing and processing the channel state information to obtain the user's physical sign information comprises: Performing signal separation on the channel state information to obtain a breathing signal and a heartbeat signal; Feature extraction is performed on the respiratory signal and the heartbeat signal respectively, and respiratory frequency data and heart rate data of the user are acquired. 4. The method according to claim 3, characterized in that said obtaining the breathing signal and the heartbeat signal comprises: performing filtering processing on the separated respiration information, and extracting the respiration information conforming to the filtering interval as the respiration signal; The separated heartbeat information is decomposed into a plurality of eigenmode functions, and the integrated eigenmode functions are used as the heartbeat signal. 5. The method according to claim 1, wherein the determining the current state of the user according to the user's physical sign information comprises: Obtaining a user information table, the user information table stores at least one set sign information of the user, and state information corresponding to the set sign information; Obtaining set sign information matching the user sign information in the user information table; The state information corresponding to the successfully matched set sign information is determined as the current state of the user. 6. The method according to claim 1, wherein the pushing the ingredients that meet the current status to the user comprises: Determine the pushed ingredients in the ingredient information of the refrigerator that match the user's current status, and display them on the display screen of the refrigerator. 7. The method according to claim 6, wherein the determining the pushed ingredients in the ingredient information of the refrigerator that conforms to the user's current status comprises: Determine the corresponding range of ingredients according to the user's current status and current time information; In the item information of the refrigerator, an item matching the item range is determined as the pushed item. 8. The method according to any one of claims 1 to 7, further comprising: Obtain information about ingredients taken out by the user in the current state; If the ingredient information taken out by the user does not match the push information, the corresponding relationship between the user's status and the ingredient is updated according to the taken-out ingredient information. 9. A device for controlling a refrigerator, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute any one of claims 1 to 8 when running the program instructions. The method for controlling a refrigerator as described in the item. 10. A refrigerator, characterized by comprising the device for controlling the refrigerator according to claim 9.

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