Refrigerator and control method thereof

Abstract

The invention discloses a refrigerator and a control method thereof.A biological sensing module and a camera module are arranged on the refrigerator, infrared signals detected by the biological sensing module are obtained, and the temperature of signal sources is calculated according to the infrared signals: when the temperature of any signal source exceeds a preset temperature threshold value, the camera module is started, and the temperature of any signal source exceeds the preset temperature threshold value; the method comprises the steps that a camera module is used for shooting a signal source, image information of the signal source shot by the camera module is obtained, the image information is recognized through an image recognition technology, a recognition result of the signal source is obtained, and when the recognition result shows that the signal source is a set user, body temperature data of the set user is recorded. By designing the intelligent function of the refrigerator, the practicability and convenience of the refrigerator can be effectively improved, and more humanized user experience is provided.

Description

Technical Field

[0001] This invention relates to the field of refrigerators, and more particularly to a refrigerator and its control method. Background Technology

[0002] With societal development, the market demand for age-friendly smart products is increasing daily, and age-friendly smart refrigerators have enormous market potential. Currently, most refrigerators on the market have poor human interaction capabilities, lacking awareness of usage scenarios and user situations, and thus cannot meet the needs of the elderly for smart refrigerator products. Furthermore, with the increasing aging population and declining birth rates, more and more elderly people are living alone, and ensuring their safety in a timely manner has become a problem for their children and nursing homes. Existing technology involves installing monitoring equipment to observe the elderly, but this infringes on the elderly's privacy and requires users to constantly monitor the equipment to detect any abnormalities. Summary of the Invention

[0003] The purpose of this invention is to provide a refrigerator and its control method, which designs intelligent functions for the refrigerator, effectively improving its practicality and convenience, and providing a more user-friendly experience.

[0004] To achieve the above objectives, embodiments of the present invention provide a refrigerator, comprising:

[0005] The container has at least one storage compartment formed within it.

[0006] A biosensing module, located outside the enclosure, is used to perform infrared temperature measurement within its detection range;

[0007] A camera module, located outside the refrigerator, is used to acquire image information of the surrounding environment of the refrigerator.

[0008] The controller is configured as follows:

[0009] The infrared signal detected by the biosensing module is acquired, and the temperature of the signal source is calculated based on the infrared signal.

[0010] When the temperature of any signal source exceeds a preset temperature threshold, the camera module is activated, and image information of the signal source captured by the camera module is obtained.

[0011] The image information is identified using image recognition technology to obtain the identification result of the signal source;

[0012] When the identification result indicates that the signal source is a designated user, the body temperature data of the designated user is recorded.

[0013] As an improvement to the above solution, after recording the body temperature data of the designated user, the controller is further configured to:

[0014] When the body temperature data exceeds the preset body temperature threshold, the refrigerator is controlled to issue an abnormal body temperature warning and simultaneously send the abnormal body temperature warning to the mobile terminal.

[0015] As an improvement to the above scheme, after obtaining the identification result of the signal source, the controller is further configured to:

[0016] When the identification result indicates that the signal source is not a designated user, the duration of absence of the designated user is recorded.

[0017] When the duration of an activity does not exceed a preset activity duration threshold, an activity anomaly notification is sent to the mobile terminal for the specified user.

[0018] As an improvement to the above scheme, after obtaining the identification result of the signal source, the controller is further configured to:

[0019] When the identification result indicates that the signal source is not a designated user, the temperature of the signal source continues to be monitored;

[0020] When the temperature of the signal source exceeds a preset high temperature threshold, the refrigerator is controlled to issue an ambient temperature abnormality warning and the warning is simultaneously sent to the mobile terminal.

[0021] As an improvement to the above solution, the refrigerator further includes:

[0022] A gas sensor, located outside the refrigerator, is used to detect the gas concentration in the environment where the refrigerator is located;

[0023] Then, the controller is further configured to:

[0024] Obtain the gas concentration collected by the gas sensor;

[0025] When the gas concentration exceeds a preset concentration threshold, the refrigerator is controlled to issue a gas leak warning and simultaneously send the gas leak warning to a mobile terminal.

[0026] As an improvement to the above solution, the refrigerator further includes:

[0027] A humidity sensor, located outside the refrigerator, is used to detect the ambient humidity of the environment in which the refrigerator is located.

[0028] Then, the controller is further configured to:

[0029] The ambient humidity is acquired by the humidity sensor.

[0030] When the ambient humidity exceeds a preset humidity threshold, the refrigerator is controlled to issue a humidity abnormality alert and simultaneously send the humidity abnormality alert to the mobile terminal.

[0031] As an improvement to the above solution, the controller is further configured to:

[0032] When the user triggers the display screen to show the storage interface, the system receives the name of the item to be stored from the user's voice input or input on the storage interface.

[0033] Determine the target room for storing the items based on the item names;

[0034] The user is prompted to store the items to be stored in the target room.

[0035] As an improvement to the above solution, the controller is further configured to:

[0036] When a user triggers the display screen to show the retrieval interface, the retrieval interface displays the item information of the stored items;

[0037] Based on the item information, target items whose storage time exceeds a preset storage time threshold are identified;

[0038] The target item is displayed with a specific marker in the retrieval interface.

[0039] As an improvement to the above solution, after detecting that the user has triggered the display screen to show the retrieval interface, the controller is further configured to:

[0040] Receives the name of the item to be retrieved via user voice input or input on the retrieval interface;

[0041] The location of the item to be retrieved is displayed on the screen;

[0042] When it is detected that the item to be retrieved has been retrieved, the item information of the item to be retrieved is deleted.

[0043] To achieve the above objectives, embodiments of the present invention also provide a refrigerator control method, comprising:

[0044] The infrared signal detected by the biosensing module on the refrigerator is acquired, and the temperature of the signal source is calculated based on the infrared signal.

[0045] When the temperature of any signal source exceeds a preset temperature threshold, the camera module on the refrigerator is activated, and the image information of the signal source captured by the camera module is obtained.

[0046] The image information is identified using image recognition technology to obtain the identification result of the signal source;

[0047] When the identification result indicates that the signal source is a designated user, the body temperature data of the designated user is recorded.

[0048] Compared to existing technologies, the refrigerator and its control method disclosed in this invention are designed for elderly users, incorporating intelligent functions to provide simpler, more intuitive human-computer interaction and a more user-friendly sensory experience. Addressing the characteristics of elderly individuals such as declining memory, weakened perception, and reduced physical agility, the invention adds voice prompts, video calls, remote control, gas leak alarms, high-temperature alarms, high-humidity alarms, and vital sign detection to the common functions of smart refrigerators. This improves the refrigerator's practicality and convenience, providing a more user-friendly experience. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the external structure of a refrigerator provided in an embodiment of the present invention;

[0050] Figure 2 This is a schematic diagram of the internal structure of a refrigerator provided in an embodiment of the present invention;

[0051] Figure 3 This is a schematic diagram of the refrigeration system in a refrigerator provided in an embodiment of the present invention;

[0052] Figure 4 This is a system hardware architecture block diagram provided in an embodiment of the present invention;

[0053] Figure 5 This is a flowchart of the vital signs detection and control provided in the embodiments of the invention;

[0054] Figure 6 This is a flowchart of the intelligent sensing and control system provided in an embodiment of the present invention;

[0055] Figure 7 This is a flowchart of the gas leak alarm control provided in an embodiment of the present invention;

[0056] Figure 8 This is a flowchart of the high humidity alarm control provided in an embodiment of the present invention;

[0057] Figure 9 This is a flowchart of the high temperature alarm control provided in an embodiment of the present invention;

[0058] Figure 10 This is a flowchart of the intelligent storage control provided in an embodiment of the present invention;

[0059] Figure 11 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention.

[0060] Among them, 100 is the refrigerator; 10 is the display screen; 1 is the compressor; 2 is the evaporator; 3 is the capillary tube; and 4 is the condenser. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] See Figure 1 , Figure 1This is a schematic diagram of the external structure of a refrigerator 100 according to an embodiment of the present invention. The refrigerator 100 of this embodiment has an approximately rectangular shape. The refrigerator includes a cabinet defining a storage space and multiple doors disposed at the opening of the cabinet. Each door includes a door shell located on the outside of the cabinet, a door inner liner located on the inside of the cabinet, an upper end cover, a lower end cover, and an insulation layer located between the door shell, the door inner liner, the upper end cover, and the lower end cover. Typically, the insulation layer is filled with foam material. The cabinet has chambers, including component storage chambers for placing components of the refrigerator, such as a compressor compartment, and storage space for storing food, etc.

[0066] See Figure 2 , Figure 2 This is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present invention. The storage space can be divided into multiple storage compartments. Depending on their purpose, these compartments can be configured as refrigerator compartments and freezer compartments, and may also include variable temperature compartments, vacuum drawers, humidifier drawers, etc. Each storage compartment corresponds to one or more doors, for example, in... Figure 2 The upper storage compartment of the refrigerator features double doors. These doors can pivot at the opening of the refrigerator body or open like drawers for drawer-style storage. A display screen 10 is located on the refrigerator door, used to display prompts and receive user touch input.

[0067] See Figure 3 , Figure 3The present invention provides a schematic diagram of the refrigeration system in a refrigerator. The refrigeration system includes a compressor 1, an evaporator 2, a dryer filter (not shown in the figure), a capillary tube 3, a condenser 4, and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process. The compression process is as follows: when the refrigerator power cord is plugged in and the thermostat contacts are closed, the compressor 1 starts working. Low-temperature, low-pressure refrigerant is drawn into the compressor 1 and compressed into high-temperature, high-pressure superheated gas in the cylinder of the compressor 1 before being discharged into the condenser 4. The condensation process is as follows: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 4, and the temperature continuously decreases, gradually cooling into room-temperature, high-pressure saturated vapor, and further cooling into saturated liquid. The temperature no longer decreases; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the condensation process. The flow process is as follows: After condensation, the saturated liquid refrigerant flows into capillary tube 3 after being filtered to remove moisture and impurities through a dryer filter. Through capillary tube 3, the refrigerant is throttled and depressurized, becoming room temperature, low pressure wet vapor. The evaporation process is as follows: The room temperature, low pressure wet vapor begins to absorb heat and vaporize in evaporator 2, which not only lowers the temperature of evaporator 2 and its surroundings, but also turns the refrigerant into a low temperature, low pressure gas. The refrigerant coming out of evaporator 2 passes through a gas-liquid separator and returns to compressor 1. The above process is repeated to transfer the heat inside the refrigerator to the outside air, thus achieving the purpose of refrigeration.

[0068] See Figure 4 , Figure 4 This is a system hardware architecture block diagram provided in an embodiment of the present invention. The controller in the refrigerator communicates with each component and controls the operation of each component according to a set program. The refrigerator includes:

[0069] A humidity sensor, located outside the refrigerator, is used to detect the ambient humidity of the environment in which the refrigerator is located.

[0070] A temperature sensor, located outside the refrigerator, is used to detect the ambient temperature of the environment in which the refrigerator is located.

[0071] A gas sensor, located outside the refrigerator, is used to detect the gas concentration in the environment where the refrigerator is located;

[0072] A display screen, located outside the enclosure, is used to display prompts and receive user touch operations.

[0073] A biosensing module, located outside the enclosure, is used to perform infrared temperature measurement within its detection range;

[0074] A voice module, located outside the enclosure, is used to receive the user's voice data;

[0075] The WiFi module, located inside the enclosure, is used for information interaction with the mobile terminal;

[0076] A camera module, located outside the refrigerator, is used to acquire image information of the surrounding environment of the refrigerator.

[0077] The humidity sensor, temperature sensor, and gas sensor are connected to the controller via a GPIO (General Purpose Input Output) interface, transmitting detected ambient temperature, humidity, and gas concentration signals to the controller. The display screen communicates with the controller via a UART (Universal Asynchronous Receiver / Transmitter) interface, displaying user-required information and transmitting user touch signals to the controller. The driver circuit board communicates with the controller via the UART interface and drives various loads according to the controller's control commands. The memory communicates with the controller via an SPI (Serial Peripheral Interface) interface, storing control logic and usage data. The biosensing module detects infrared signals emitted by objects within a 2-meter radius directly in front of the refrigerator and transmits the intensity information to the controller via a GPIO interface. The voice module communicates with the controller via an SPI interface, acquiring user voice information, converting it into electrical signals, and transmitting them to the controller. The controller then converts these electrical signals into comprehensible voice signals. The WIFI module communicates with the controller via a UART interface, uploading measurement information, operating status, and stored information from each module to the cloud server in real time via the home wireless network. Users can remotely access this information via mobile devices and also remotely adjust the refrigerator's operating mode by connecting to the cloud server through their mobile devices. The camera module communicates with the controller via an SPI interface, converting image information into electrical signals and sending them to the controller.

[0078] In this embodiment of the invention, elderly people experience a decline in learning and perceptual abilities, making it difficult for them to learn and use smart products. Therefore, this invention supports remote access and settings for the refrigerator. The elderly person's children can use a mobile terminal to connect to a cloud server, mirror and edit the touchscreen display interface, obtain refrigerator operating parameters and various information in the memory, modify the refrigerator's operating mode, acquire surrounding image information and data from various sensors, and also conduct remote video calls using the display screen.

[0079] Specifically, the controller is configured to: acquire the infrared signal detected by the biosensing module and calculate the temperature of the signal source based on the infrared signal; when the temperature of any signal source exceeds a preset temperature threshold, activate the camera module and acquire image information of the signal source captured by the camera module; use image recognition technology to identify the image information to obtain the identification result of the signal source; when the identification result indicates that the signal source is a designated user, record the body temperature data of the designated user.

[0080] For example, see Figure 5 , Figure 5 This is a flowchart of the vital signs detection and control process provided in the embodiments of the invention. The controller is configured to execute steps S11 to S17. When an elderly person living alone falls ill or has an accident, it is difficult for their children to notice. The biosensing module used in the refrigerator provided in this embodiment of the invention can detect infrared signals emitted by a signal source. The controller calculates the temperature of the signal source based on the intensity of the infrared signal. When the temperature of the signal source exceeds a preset temperature threshold, such as 20°C, the camera module is activated to acquire image information. The image information is analyzed using an image recognition algorithm to determine whether a designated user (such as an elderly person in the home who needs close monitoring) has appeared. If the appearance of the designated user is confirmed through image recognition, the body temperature data of the designated user is recorded. When there are multiple designated users to be monitored, their body temperature data can be stored separately using different numbers, along with the current time. For example, if there are two designated users, numbered 001 and 002 respectively, and the body temperature data of designated user 001 is detected, the three bound information "designated user 001 + body temperature data + current time" can be stored in the memory.

[0081] Specifically, after recording the body temperature data of the user, the controller is further configured to: when the body temperature data exceeds a preset body temperature threshold, control the refrigerator to issue a body temperature abnormality alert and simultaneously send the body temperature abnormality alert to the mobile terminal.

[0082] For example, such as Figure 5 As shown, after executing step S17, the controller is also configured to execute steps S18 to S19. After recording the user's body temperature data, it can further determine whether the user's body temperature is abnormal. If the body temperature data exceeds the body temperature threshold (e.g., 38°C), it indicates that the user's body temperature is abnormal. The touch screen displays a body temperature abnormality reminder and simultaneously sends a mobile phone reminder SMS to inform the elderly person's children and prompt them to set the user's body temperature abnormality.

[0083] Specifically, the controller is further configured to: when the identification result indicates that the signal source is not a designated user, record the duration of absence of the designated user; when the duration of absence exceeds a preset activity duration threshold, send an activity anomaly prompt to the mobile terminal for the designated user.

[0084] For example, such as Figure 5 As shown, after executing step S16, the controller is also configured to execute steps S20 to S21. If the image recognition confirms that the set user has not appeared, the duration of the user's absence is recorded (calculated from the time the set user was last detected). When the duration of absence exceeds the activity duration threshold (e.g., 24 hours), it is determined that the set user has not appeared for a long time. If the set user has not appeared for 24 hours, it indicates that the user is likely to have an accident. At this time, a mobile phone reminder SMS is sent to inform the elderly person's children that the set user's activity is abnormal.

[0085] In this embodiment of the invention, since refrigerators are commonly used household appliances, a biosensing module and a camera device can be installed on the refrigerator to assess the user's home safety (whether they have not been in the kitchen for a long time). Since the biosensing module can sense not only human body temperature but also animal temperature, this embodiment of the invention uses a camera device for image recognition to further distinguish between humans and animals. This can accurately distinguish between humans and animals and further identify which user it is, thereby improving the accuracy of setting user temperature monitoring.

[0086] Specifically, after obtaining the identification result of the signal source, the controller is further configured to: when the identification result indicates that the signal source is not a set user, continue to monitor the temperature of the signal source; when the temperature of the signal source is greater than a preset high temperature threshold, control the refrigerator to issue an ambient temperature abnormality warning and simultaneously send the ambient temperature abnormality warning to the mobile terminal.

[0087] For example, see Figure 6 , Figure 6This is a flowchart of the intelligent sensing control provided in this embodiment of the invention. After executing step S16, the controller is further configured to execute steps S31 to S37. As mentioned earlier, the biosensing module used in the refrigerator provided in this embodiment of the invention can detect infrared signals. The controller calculates the temperature of the signal source based on the intensity of the infrared signal, activates the camera module to acquire image information, and uses an image recognition algorithm to determine whether a designated user has appeared. If the image recognition confirms that the designated user has appeared, the user's temperature information is recorded and the touchscreen is turned on. If the image recognition confirms that the designated user has not appeared, the touchscreen is turned off. If the image recognition confirms that the designated user has not appeared, and the temperature of the infrared signal source is greater than the high temperature threshold (e.g., 200°C), it indicates that a fire may occur in the user's home. A voice alarm is then played and a warning SMS is sent, indicating the presence of a high-temperature heat source. If the temperature of the infrared signal source is not greater than the high temperature threshold, the voice alarm is stopped.

[0088] Specifically, the controller is further configured to: acquire the gas concentration collected by the gas sensor; when the gas concentration is greater than a preset concentration threshold, control the refrigerator to issue a gas leak warning and simultaneously send the gas leak warning to a mobile terminal.

[0089] For example, see Figure 7 , Figure 7 This is a flowchart of a gas leak alarm control system provided in this embodiment of the invention. The controller is configured to execute steps S41 to S47. A gas sensor measures the concentration of combustible gas in real time. When the measured gas concentration exceeds the standard, a gas alarm is triggered. The touchscreen lights up and displays alarm information (indicating that the combustible gas concentration exceeds the standard and displaying the real-time concentration of the combustible gas). The touchscreen automatically turns off if there is no touch signal or lighting signal within 60 seconds after it lights up. The voice module plays an alarm voice message (combustible gas concentration exceeds the standard). The WIFI module uploads the alarm information to a cloud server via the home wireless network. The cloud server sends an alarm SMS to the user's mobile phone, alerting the user to a possible combustible gas leak in their home, facilitating timely elimination of safety hazards. If an elderly person living alone does not notice the combustible gas leak in time, the cloud server can send an alarm SMS to the mobile phones of the elderly person's children.

[0090] In this embodiment of the invention, since refrigerators are usually placed in the kitchen, which is often a high-risk area for gas leaks, by installing a gas sensor on the refrigerator, gas leaks in the kitchen can be detected as soon as they occur, thus improving the real-time performance of gas leak detection.

[0091] Specifically, the controller is further configured to: acquire the ambient humidity collected by the humidity sensor; when the ambient humidity is greater than a preset humidity threshold, control the refrigerator to issue a humidity abnormality alert and simultaneously send the humidity abnormality alert to the mobile terminal.

[0092] For example, see Figure 8 , Figure 8 This is a flowchart of a high humidity alarm control provided in an embodiment of the present invention. The controller is configured to execute steps S51 to S57. The refrigerator provided in this embodiment of the present invention can use the humidity sensor to monitor the ambient humidity in real time. If the ambient humidity exceeds the humidity threshold, the refrigerator is controlled to issue a humidity abnormality warning, so that the user can promptly activate the indoor dehumidification function. In addition, when the humidity threshold is set relatively high, the humidity sensor can be used to monitor whether there is water flooding at the location of the refrigerator (such as due to an open window or an unturned faucet). If water flooding occurs, the user can also be promptly alerted.

[0093] Furthermore, the controller is also configured to: acquire the ambient temperature collected by the temperature sensor; when the ambient temperature is greater than a preset high temperature threshold, control the refrigerator to issue an ambient temperature abnormality warning, and simultaneously send the ambient temperature abnormality warning to the mobile terminal.

[0094] For example, see Figure 9 , Figure 9 This is a flowchart of a high-temperature alarm control provided in an embodiment of the present invention. The controller is configured to execute steps S61 to S67. The refrigerator provided in this embodiment of the present invention can use the temperature sensor to monitor the ambient temperature in real time. If the ambient temperature exceeds the high-temperature threshold, it indicates that a fire may occur, and the refrigerator is controlled to issue an abnormal ambient temperature warning. In this way, the user can know the indoor situation in time and take emergency measures.

[0095] Specifically, the controller is further configured to: receive the name of the item to be stored by the user's voice input or input on the storage interface when the user triggers the display screen to show the storage interface; determine the target room for storing the item according to the item name; and prompt the user to store the item in the target room.

[0096] For example, see Figure 10 , Figure 10This is a flowchart of the intelligent storage control provided in this embodiment of the invention. The controller is configured to execute steps S711 to S716. After entering the intelligent storage and retrieval interface, the user chooses to store or retrieve the item. When the user enters the storage interface, they first need to enter the name of the item to be stored, and then enter the storage quantity / weight. The controller will automatically search for the item image corresponding to the name and record the storage time. The item name, item image, storage time, and storage quantity / weight (if entered) are used as item information. The user can manually enter the item name by clicking the touch screen or by using the voice recognition function of the voice module. For example, if the user says "store item aa", after entering the item name, the controller will automatically classify the item, select a suitable target room for storing the item, and record the storage location where the user puts the item in real time (the user may not choose to put it in the recommended target room, but in another room), so that the user can retrieve the item more quickly. When the user puts the item into the corresponding room, the system automatically saves the item information to form an item storage database.

[0097] Specifically, the controller is further configured to: when a user triggers the display screen to show the retrieval interface, display the item information of the stored items on the retrieval interface; determine the target item whose storage time exceeds a preset storage time threshold based on the item information; and display the target item with a specific marker on the retrieval interface.

[0098] Specifically, after detecting that the user triggers the display screen to show the retrieval interface, the controller is further configured to: receive the name of the item to be retrieved by the user's voice input or input on the retrieval interface; display the storage location of the item to be retrieved on the display screen; and delete the item information of the item to be retrieved when the item to be retrieved is detected to be retrieved.

[0099] For example, the controller is configured to execute steps S721-S726. After entering the intelligent storage and retrieval interface, the user chooses to store or retrieve the item. When the user enters the retrieval interface, the interface displays information such as the name, image, and storage time of the stored item. The controller determines whether the stored item has been stored for too long based on its category. If the storage time of the target item is too long, the controller changes the background color of the item name to red to remind the user to retrieve it in time to prevent it from expiring or spoiling. After the user selects the item to be retrieved, the touchscreen displays the storage location of the item for easy retrieval. After the user retrieves the item, the controller automatically clears the item information, and the process ends upon exiting the intelligent storage and retrieval interface.

[0100] Compared to existing technologies, the refrigerator disclosed in this invention is designed for elderly users, incorporating intelligent functions to provide a simpler, more intuitive human-computer interaction and a more user-friendly sensory experience. Addressing the characteristics of elderly individuals such as declining memory, weakened perception, and reduced physical agility, the refrigerator adds voice prompts, video call functionality, remote control capabilities, gas leak alarms, high-temperature alarms, high-humidity alarms, and vital sign detection functions to the common features of smart refrigerators. This improves the refrigerator's practicality and convenience, providing a more user-friendly experience.

[0101] See Figure 11 , Figure 11 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention. The refrigerator control method is implemented by a controller in the refrigerator and includes:

[0102] S1. Acquire the infrared signal detected by the biosensing module on the refrigerator, and calculate the temperature of the signal source based on the infrared signal;

[0103] S2. When the temperature of any signal source exceeds a preset temperature threshold, the camera module on the refrigerator is activated, and the image information of the signal source captured by the camera module is obtained.

[0104] S3. Use image recognition technology to identify the image information and obtain the identification result of the signal source;

[0105] S4. When the identification result indicates that the signal source is a designated user, record the body temperature data of the designated user.

[0106] Specifically, after recording the body temperature data of the user, the method further includes: when the body temperature data exceeds a preset body temperature threshold, controlling the refrigerator to issue a body temperature abnormality alert, and simultaneously sending the body temperature abnormality alert to the mobile terminal.

[0107] Specifically, after obtaining the identification result of the signal source, the method further includes: when the identification result indicates that the signal source is a non-set user, recording the absence duration of the set user; when the absence duration exceeds a preset activity duration threshold, sending an activity anomaly prompt to the mobile terminal for the set user.

[0108] Specifically, after obtaining the identification result of the signal source, the method further includes: when the identification result indicates that the signal source is not a set user, continuing to monitor the temperature of the signal source; when the temperature of the signal source is greater than a preset high temperature threshold, controlling the refrigerator to issue an ambient temperature abnormality warning, and synchronously sending the ambient temperature abnormality warning to the mobile terminal.

[0109] Specifically, the method further includes: acquiring the gas concentration collected by the gas sensor in the refrigerator; when the gas concentration is greater than a preset concentration threshold, controlling the refrigerator to issue a gas leak warning, and simultaneously sending the gas leak warning to a mobile terminal.

[0110] Specifically, the method further includes: acquiring the ambient humidity collected by the humidity sensor in the refrigerator; when the ambient humidity is greater than a preset humidity threshold, controlling the refrigerator to issue a humidity abnormality alert, and simultaneously sending the humidity abnormality alert to the mobile terminal.

[0111] Specifically, the method further includes: when the user triggers the display screen to show the storage interface, receiving the name of the item to be stored by the user's voice input or input on the storage interface; determining the target room for storing the item according to the item name; and prompting the user to store the item in the target room.

[0112] Specifically, the method further includes: when a user triggers the display screen to show the retrieval interface, displaying the item information of the stored item on the retrieval interface; determining the target item whose storage time exceeds a preset storage time threshold based on the item information; and displaying the target item with a specific mark on the retrieval interface.

[0113] Specifically, after detecting that the user triggers the display screen to show the retrieval interface, the method further includes: receiving the name of the item to be retrieved by the user's voice input or input on the retrieval interface; displaying the storage location of the item to be retrieved on the display screen; and deleting the item information of the item to be retrieved when the user detects that the item to be retrieved has been retrieved.

[0114] It is worth noting that the specific working process of the refrigerator control method described in the embodiments of the present invention can refer to the working process of refrigerator control described in the above embodiments, and will not be repeated here.

[0115] Compared to existing technologies, the refrigerator control method disclosed in this invention is designed for elderly users, incorporating intelligent functions to provide a simpler, more intuitive human-computer interaction and a more user-friendly sensory experience. Addressing the characteristics of elderly individuals such as declining memory, weakened perception, and reduced physical agility, the method adds voice prompts, video calls, remote control, gas leak alarms, high-temperature alarms, high-humidity alarms, and vital sign detection to the common functions of smart refrigerators. This improves the practicality and convenience of the refrigerator, providing a more user-friendly experience.

[0116] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that, include: The container has at least one storage compartment formed within it. A biosensing module, located outside the enclosure, is used to perform infrared temperature measurement within its detection range; A camera module, located outside the refrigerator, is used to acquire image information of the surrounding environment of the refrigerator. The controller is configured as follows: The infrared signal detected by the biosensing module is acquired, and the temperature of the signal source is calculated based on the infrared signal. When the temperature of any signal source exceeds a preset temperature threshold, the camera module is activated, and image information of the signal source captured by the camera module is obtained. The image information is identified using image recognition technology to obtain the identification result of the signal source; When the identification result indicates that the signal source is a designated user, the body temperature data of the designated user is recorded.

2. The refrigerator as described in claim 1, characterized in that, After recording the body temperature data of the designated user, the controller is further configured to: When the body temperature data exceeds the preset body temperature threshold, the refrigerator is controlled to issue an abnormal body temperature warning and simultaneously send the abnormal body temperature warning to the mobile terminal.

3. The refrigerator as described in claim 1, characterized in that, After obtaining the identification result of the signal source, the controller is further configured to: When the identification result indicates that the signal source is not a designated user, the duration of absence of the designated user is recorded. When the duration of an activity does not exceed a preset activity duration threshold, an activity anomaly notification is sent to the mobile terminal for the specified user.

4. The refrigerator as described in claim 1, characterized in that, After obtaining the identification result of the signal source, the controller is further configured to: When the identification result indicates that the signal source is not a designated user, the temperature of the signal source continues to be monitored; When the temperature of the signal source exceeds a preset high temperature threshold, the refrigerator is controlled to issue an ambient temperature abnormality warning and the warning is simultaneously sent to the mobile terminal.

5. The refrigerator as described in claim 1, characterized in that, The refrigerator also includes: A gas sensor, located outside the refrigerator, is used to detect the gas concentration in the environment where the refrigerator is located; Then, the controller is further configured to: Obtain the gas concentration collected by the gas sensor; When the gas concentration exceeds a preset concentration threshold, the refrigerator is controlled to issue a gas leak warning and simultaneously send the gas leak warning to a mobile terminal.

6. The refrigerator as described in claim 1, characterized in that, The refrigerator also includes: A humidity sensor, located outside the refrigerator, is used to detect the ambient humidity of the environment in which the refrigerator is located. Then, the controller is further configured to: The ambient humidity is acquired by the humidity sensor. When the ambient humidity exceeds a preset humidity threshold, the refrigerator is controlled to issue a humidity abnormality alert and simultaneously send the humidity abnormality alert to the mobile terminal.

7. The refrigerator as described in claim 1, characterized in that, The controller is also configured to: When the user triggers the display screen to show the storage interface, the system receives the name of the item to be stored from the user's voice input or input on the storage interface. Determine the target room for storing the items based on the item names; The user is prompted to store the items to be stored in the target room.

8. The refrigerator as described in claim 1, characterized in that, The controller is also configured to: When a user triggers the display screen to show the retrieval interface, the retrieval interface displays the item information of the stored items; Based on the item information, target items whose storage time exceeds a preset storage time threshold are identified; The target item is displayed with a specific marker in the retrieval interface.

9. The refrigerator as described in claim 8, characterized in that, After detecting that the user has triggered the display screen to show the retrieval interface, the controller is further configured to: Receives the name of the item to be retrieved via user voice input or input on the retrieval interface; The location of the item to be retrieved is displayed on the screen; When it is detected that the item to be retrieved has been retrieved, the item information of the item to be retrieved is deleted.

10. A refrigerator control method, characterized in that, include: The infrared signal detected by the biosensing module on the refrigerator is acquired, and the temperature of the signal source is calculated based on the infrared signal. When the temperature of any signal source exceeds a preset temperature threshold, the camera module on the refrigerator is activated, and the image information of the signal source captured by the camera module is obtained. The image information is identified using image recognition technology to obtain the identification result of the signal source; When the identification result indicates that the signal source is a designated user, the body temperature data of the designated user is recorded.

Images