Refrigerator control methods, devices and refrigerators

Abstract

This invention discloses a refrigerator control method, device, and refrigerator. The method includes: acquiring a temperature prediction curve for the refrigerator's cold compartment; controlling the temperature and humidity sensor to stop working during the operation of the negative ion generator, and controlling the operation of the refrigerator's refrigeration system according to the temperature prediction curve; and controlling the temperature and humidity sensor to work during the operation of the negative ion generator, and controlling the operation of the refrigerator's refrigeration system according to the temperature and humidity sensor. This invention solves the problem in the prior art where the negative ion generator interferes with the operation of the temperature and humidity sensor, leading to inaccurate refrigerator temperature control, and makes temperature regulation more accurate while ensuring sterilization effect.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and more specifically, to a refrigerator control method, device, and refrigerator. Background Technology

[0002] A negative ion generator is a device that produces negative air ions. Negative ions have strong redox capabilities, which can disrupt the cell membranes of bacteria or the activity of enzymes in the protoplasm, thus playing an antibacterial and bactericidal role. At the same time, negative ions can neutralize positive charges, decompose endogenous ethylene, inactivate enzyme activity, and reduce respiration intensity, thereby slowing down the loss of nutrients in fruits and vegetables during storage. Therefore, negative ion generators are increasingly being used in refrigerators to extend the shelf life of food.

[0003] Low concentrations of negative ions cannot produce a sterilization effect, while high concentrations can adversely affect refrigerator components (such as temperature and humidity sensors), impacting the refrigerator's normal function. Temperature and humidity sensors collect temperature and humidity information through metal temperature probes made of thermistor and humidity-sensitive elements, converting this information into current or voltage signals that are linearly related to temperature and humidity, which are then input to the measuring circuit. Negative ion generators, however, operate using high-voltage electric field corona discharge. Their inverter circuits generate strong electromagnetic fields, which induce a significant current in the metal temperature probes and wires of the temperature and humidity sensor. The voltage drop generated by this induced current in the sensor's input circuit is superimposed on the useful signal and sent to the measuring circuit, becoming an interference signal. This leads to inaccurate temperature and humidity measurements by the temperature and humidity sensor, affecting the refrigerator's cooling and humidity control, and ultimately hindering food preservation.

[0004] There is currently no effective solution to the problem of inaccurate refrigerator temperature control caused by the interference of negative ion generators with temperature and humidity sensors in related technologies. Summary of the Invention

[0005] This invention provides a refrigerator control method, device, and refrigerator, to at least solve the problem in the prior art where the negative ion generator interferes with the operation of the temperature and humidity sensor, resulting in inaccurate temperature control in the refrigerator.

[0006] To address the aforementioned technical problems, according to one aspect of the present invention, a refrigerator control method is provided. The refrigerator's cold storage compartment is equipped with a negative ion generator and a temperature and humidity sensor. The method includes: acquiring a temperature prediction curve for the refrigerator's cold storage compartment; controlling the temperature and humidity sensor to stop working during the operation of the negative ion generator, and controlling the operation of the refrigerator's refrigeration system based on the temperature prediction curve; and controlling the temperature and humidity sensor to work during the operation of the negative ion generator, and controlling the operation of the refrigerator's refrigeration system based on the temperature and humidity sensor.

[0007] Furthermore, the temperature prediction curve includes: a temperature prediction curve in cooling mode and a temperature prediction curve in non-cooling mode; obtaining the temperature prediction curve of the refrigerator compartment includes: in cooling mode, monitoring whether new items are placed in the refrigerator compartment, calculating the density of the new items in the refrigerator compartment when new items are placed, and determining the temperature prediction curve in cooling mode based on the density of the new items; in non-cooling mode, calculating the total density of items in the refrigerator compartment, and determining the temperature prediction curve in non-cooling mode based on the total density of items.

[0008] Furthermore, the cold storage compartment is equipped with an image acquisition device; the density of newly added items in the cold storage compartment is calculated, and a temperature prediction curve under the refrigeration mode is determined based on the density of the newly added items, including: acquiring the total amount of newly added items through the image acquisition device; acquiring the volume of the cold storage compartment, calculating the ratio between the total amount of newly added items and the volume of the cold storage compartment as the density of the newly added items; determining the interval in which the density of the newly added items lies, and determining the temperature prediction curve under the refrigeration mode based on the interval; wherein, the temperature prediction curve under the refrigeration mode is T = T k e At t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. A is a coefficient, and A corresponds to the interval in which the density of the newly added item is located.

[0009] Furthermore, the cold storage compartment is equipped with an image acquisition device; the total item density of the cold storage compartment is calculated, and a temperature prediction curve for the non-refrigeration mode is determined based on the total item density, including: acquiring the total quantity of items in the cold storage compartment through the image acquisition device; acquiring the volume of the cold storage compartment, calculating the ratio between the total quantity of items and the volume of the cold storage compartment as the total item density; determining the interval in which the total item density falls, and determining the temperature prediction curve for the non-refrigeration mode based on the interval; wherein, the temperature prediction curve for the non-refrigeration mode... t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. B, C, n, and a are coefficients, and B, C, n, and a correspond to the intervals in which the total density of the items is located.

[0010] Furthermore, controlling the operation of the refrigerator's refrigeration system based on the temperature prediction curve includes: acquiring the operating status of the refrigeration system; when the refrigeration system is in the on state, predicting the current temperature of the refrigerator compartment based on the temperature prediction curve in the refrigeration mode, and controlling the refrigeration system to shut down when the current temperature reaches the preset shut-off temperature; when the refrigeration system is in the off state, predicting the current temperature of the refrigerator compartment based on the temperature prediction curve in the non-refrigeration mode, and controlling the refrigeration system to turn on when the current temperature reaches the preset turn-on temperature.

[0011] Furthermore, the operation of the refrigerator's refrigeration system is controlled based on the temperature and humidity sensor, including: controlling the refrigeration system to turn on when the parameters detected by the temperature and humidity sensor meet the preset turning-on conditions; and controlling the refrigeration system to turn off when the parameters detected by the temperature and humidity sensor meet the preset turning-off conditions.

[0012] Furthermore, before obtaining the temperature prediction curve of the refrigerator's cold compartment, the process also includes: obtaining the on-time and off-time of the negative ion generator; wherein, the on-time and off-time are used to ensure that the negative ion concentration in the cold compartment reaches the preset sterilization concentration; after the refrigerator is turned on, the negative ion generator is controlled to cycle between on-time and off-time according to the on-time and off-time.

[0013] According to another aspect of the present invention, a refrigerator control device is provided. The refrigerator's cold compartment is equipped with a negative ion generator and a temperature and humidity sensor. The device includes: an acquisition module for acquiring a temperature prediction curve of the refrigerator's cold compartment; a first control module for controlling the temperature and humidity sensor to stop working during the operation of the negative ion generator and controlling the operation of the refrigerator's refrigeration system according to the temperature prediction curve; and a second control module for controlling the temperature and humidity sensor to work during the operation of the negative ion generator and controlling the operation of the refrigerator's refrigeration system according to the temperature and humidity sensor.

[0014] According to another aspect of the present invention, a refrigerator is provided, comprising: a negative ion generator and a temperature and humidity sensor disposed in the refrigerator compartment, and a refrigerator control device as described above.

[0015] According to another aspect of the present invention, a storage medium comprising computer-executable instructions is provided, which, when executed by a computer processor, are used to perform the refrigerator control method as described above.

[0016] In this invention, to address the problem of strong electromagnetic fields generated when the negative ion generator is turned on, interfering with the temperature and humidity sensor test signals and thus leading to inaccurate refrigerator temperature control, the operating states of the negative ion generator and the temperature and humidity sensor are rationally adjusted, and their operating times are staggered to avoid inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, by simulating curves to predict temperature changes in the refrigerator compartment, the refrigerator's cooling state is controlled, ensuring sterilization effectiveness while making temperature control more accurate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an optional structure of a refrigerator according to an embodiment of the present invention;

[0018] Figure 2 This is an optional structural schematic diagram of a refrigerator control system according to an embodiment of the present invention;

[0019] Figure 3 This is an optional flowchart of a refrigerator control method according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the temperature prediction curve under the cooling mode according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the temperature prediction curve under non-cooling mode according to an embodiment of the present invention;

[0022] Figure 6 This is another optional flowchart of the refrigerator control method according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Negative ion generator; 2. Temperature and humidity sensor; 3. Door open / close sensor; 4. Camera. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0027] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0028] It should be understood that although the terms first, second, third, etc., may be used to describe controllers in embodiments of the present invention, these controllers should not be limited to these terms. These terms are only used to distinguish controllers connected to different devices. For example, without departing from the scope of embodiments of the present invention, a first controller may also be referred to as a second controller, and similarly, a second controller may also be referred to as a first controller.

[0029] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0030] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0031] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] Example 1

[0033] In a preferred embodiment 1 of the present invention, a refrigerator control method is provided. This control method can be directly applied to a refrigerator equipped with a negative ion generator. The refrigerator's cold storage compartment is equipped with a negative ion generator 1, a temperature and humidity sensor 2, a door opening / closing sensor 3, and a camera 4. The positions of each component are as follows: Figure 1 As shown.

[0034] Figure 2 This diagram illustrates one possible structural design of the refrigerator control system, such as... Figure 2 As shown, it includes: a data processing module and a control module.

[0035] The data processing module is connected to the humidity sensor and the camera. The data processing module includes circuits such as voltage regulation and filtering, operational amplification, nonlinear correction, V / I conversion, constant current and reverse protection. It is used to comprehensively process the information collected by the temperature and humidity sensor and the camera, convert it into a current or voltage analog signal that has a linear relationship with it, and then transmit it to the control module.

[0036] The control module is connected to the refrigerator door switch sensor. The control module is used to control various components of the refrigerator, including temperature and humidity sensors, camera, air door, fan, refrigeration system, negative ion generator, and timer.

[0037] The refrigerator door sensor monitors whether the user has opened the refrigerator door. If the user opens the refrigerator door, it sends an electrical signal to the control module.

[0038] The far-infrared camera monitors whether users put in new items and counts the storage density in the refrigerator compartment, transmitting the statistical signal to the data processing module. Items placed within the past half hour are considered new items by default.

[0039] The temperature and humidity sensor is equipped with a thermistor metal temperature probe, which is used to collect the temperature signal of the cold storage compartment and transmit the signal to the data processing module.

[0040] The air damper, fan, and refrigeration system are used to cool the refrigerator. The refrigeration system consists of four main parts: compressor, condenser, expansion valve, and evaporator. The entire refrigeration system is connected in a closed loop by circulation pipes filled with refrigerant. The refrigerator compartment has independent air ducts and air outlets. The air ducts are equipped with dampers, and the end of the air ducts connects to the fan and refrigeration system. The fan blows cold air into the refrigerator compartment's air ducts, and then delivers it to the compartments through the dampers and air outlets.

[0041] The negative ion generator is used to emit negative ions to sterilize the refrigerator compartment.

[0042] The timer is used to track the operating time of the negative ion generator and the temperature and humidity sensor at each stage.

[0043] Based on the above refrigerator structure Figure 3 An optional flowchart of the refrigerator control method is shown, such as... Figure 3 As shown, the method includes the following steps S302-S306:

[0044] S302: Obtain the temperature prediction curve of the refrigerator's cold compartment;

[0045] S304: During the operation of the negative ion generator, the temperature and humidity sensor is stopped, and the operation of the refrigerator's refrigeration system is controlled according to the temperature prediction curve.

[0046] S306: During the period when the negative ion generator is off, control the temperature and humidity sensor to work, and control the operation of the refrigerator's refrigeration system according to the temperature and humidity sensor.

[0047] In the above implementation, to address the problem of strong electromagnetic fields generated when the negative ion generator is turned on, interfering with the temperature and humidity sensor test signals and thus leading to inaccurate refrigerator temperature control, the operating states of the negative ion generator and the temperature and humidity sensor are reasonably adjusted to stagger their operating times, thus avoiding inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, by simulating curves to calculate temperature changes in the refrigerator compartment, the refrigerator's cooling status is controlled, ensuring sterilization effectiveness while making temperature control more accurate.

[0048] Specifically, the temperature prediction curves include: the temperature prediction curve in cooling mode and the temperature prediction curve in non-cooling mode; since the temperature of the refrigerator compartment tends to decrease after the cooling system is turned on, and tends to increase when the cooling system is not turned on, the temperature prediction curves are divided into two types.

[0049] In cooling mode, the system monitors whether new items are placed in the refrigerator compartment. When new items are placed, the density of the newly added items in the refrigerator compartment is calculated. Based on the density of the newly added items, a temperature prediction curve for cooling mode is determined. Calculating the density of the newly added items in the refrigerator compartment and determining the temperature prediction curve for cooling mode includes: acquiring the total amount of newly added items through an image acquisition device; acquiring the volume of the refrigerator compartment and calculating the ratio between the total amount of newly added items and the volume of the refrigerator compartment as the density of the newly added items; determining the interval in which the density of the newly added items falls, and determining the temperature prediction curve for cooling mode based on the interval; wherein, the temperature prediction curve for cooling mode is T = T k e At t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. A is a coefficient, and A corresponds to the interval in which the density of the newly added item is located.

[0050] New item density in the refrigerator compartment (Q) x = The amount of new items added to the refrigerator (M) x The volume (V) of the cold storage compartment can be divided into three levels: Q≤1 / 3, 1 / 3<Q<2 / 3, and Q≥2 / 3. The specific temperature prediction curves for the density of newly added items in each cold storage compartment are shown in Table 1. Meanwhile, Figure 4 A schematic diagram showing the temperature prediction curve under cooling mode.

[0051] Table 1

[0052]

[0053] In non-refrigeration mode, the total item density of the cold storage compartment is calculated, and the temperature prediction curve for non-refrigeration mode is determined based on the total item density. Calculating the total item density of the cold storage compartment and determining the temperature prediction curve for non-refrigeration mode based on the total item density includes: acquiring the total quantity of items in the cold storage compartment using an image acquisition device; acquiring the volume of the cold storage compartment and calculating the ratio between the total quantity of items and the volume of the cold storage compartment as the total item density; determining the interval within which the total item density falls, and determining the temperature prediction curve for non-refrigeration mode based on the interval; wherein, the temperature prediction curve for non-refrigeration mode... t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. B, C, n, and a are coefficients, and B, C, n, and a correspond to the intervals in which the total density of the items is located.

[0054] Total density of items in the refrigerator compartment (Q) z = Total quantity of items in the refrigerator compartment (M) z The volume (V) of the refrigerator compartment can be divided into three levels: Q≤1 / 3, 1 / 3<Q<2 / 3, and Q≥2 / 3. The specific temperature prediction curves corresponding to the total item density of each refrigerator compartment are shown in Table 2. Meanwhile, Figure 5 A schematic diagram showing the temperature prediction curve under non-cooling mode.

[0055] Table 2

[0056]

[0057] In another preferred embodiment of the present invention, controlling the operation of the refrigerator's refrigeration system according to a temperature prediction curve includes: acquiring the operating status of the refrigeration system; when the refrigeration system is in the on state, predicting the current temperature of the refrigerator compartment according to the temperature prediction curve in the refrigeration mode, and controlling the refrigeration system to shut down when the current temperature reaches a preset shut-off temperature; when the refrigeration system is in the off state, predicting the current temperature of the refrigerator compartment according to the temperature prediction curve in the non-refrigeration mode, and controlling the refrigeration system to turn on when the current temperature reaches a preset turn-on temperature.

[0058] After the user opens and closes the refrigerator door, the door opening / closing sensor transmits an electrical signal to the control module, which then controls the camera and temperature / humidity sensor. The camera counts the number of new items added to the refrigerator compartment and the total density of items, and transmits the statistical signal to the data processing module. Simultaneously, the temperature / humidity sensor monitors the refrigerator compartment temperature T. k The signal is then transmitted to the data processing module, which simulates the temperature change curve of the cold storage compartment based on the storage density and historical temperature, and generates relevant electrical signals that are then transmitted to the control module.

[0059] The control module controls the operation of the damper, fan, and refrigeration system to cool the refrigerator compartment. Simultaneously, it controls the activation of the negative ion generator and timer to sterilize the refrigerator compartment; the activation duration is t. a (t a (Selectable time: 30min–45min). During this process, the temperature and humidity sensors stop working, and the data processing module calculates the real-time temperature T of the refrigerator compartment based on the temperature simulation curve of the cooling mode. j If T is in this process j If the temperature is ≤T0 (T0 is 1℃~5℃), the refrigerator determines that it needs to stop cooling and sends a feedback signal to the control system. The control module then controls the damper, fan, and refrigeration system to stop working, and the refrigerator stops cooling. The data processing module then calculates the real-time temperature T of the refrigerator compartment based on the temperature simulation curve of the non-cooling mode. j If T during this process jIf the temperature exceeds T0 (T0 is 1℃~5℃), the refrigerator will determine that it needs to cool and will send a signal to the control system. The control module will then control the damper, fan, and refrigeration system to work and cool the refrigerator compartment. This process will repeat.

[0060] When running in cooling mode, the operation of the refrigerator's cooling system is controlled according to the temperature and humidity sensor, including: controlling the cooling system to turn on when the parameters detected by the temperature and humidity sensor meet the preset turning-on conditions; and controlling the cooling system to turn off when the parameters detected by the temperature and humidity sensor meet the preset turning-off conditions.

[0061] Before obtaining the temperature prediction curve of the refrigerator's cold compartment, the process also includes: obtaining the on and off times of the negative ion generator; wherein, the on and off times are used to ensure that the negative ion concentration in the cold compartment reaches the preset sterilization concentration; after the refrigerator is turned on, the negative ion generator is controlled to cycle between on and off according to the on and off times.

[0062] Negative ion generator on-time t a (t a The operation will stop after 30-45 minutes, with a stop time of t. b (t b (3-5 minutes), during which time the temperature and humidity sensor operates to monitor the refrigerator compartment temperature T in real time. z If T z If the value is greater than T0, the data processing module determines that the refrigerator needs cooling and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to cool the refrigerator compartment. Conversely, if T is less than T0, the data processing module determines that the refrigerator needs cooling and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to work, thus cooling the refrigerator compartment. z If the value is less than or equal to T0, it is determined that the refrigerator does not need to cool down, and a signal is sent to the control system. The control module then controls the damper, fan, and refrigeration system to stop working, and the refrigerator stops cooling.

[0063] Time reaches t b Afterwards, the temperature and humidity sensor stopped working, and the data processing module recorded the last temperature T. k The time t for the negative ion generator to restart a This process repeats. During the operation of the negative ion generator, the data processing module determines whether the refrigerator compartment needs cooling based on the storage density and historical temperature. If T... k If the temperature exceeds T0, the data processing module determines that the refrigerator needs cooling and sends a feedback signal to the control system. The control module then controls the damper, fan, and refrigeration system to cool the refrigerator compartment. At the same time, the data processing module simulates the temperature change curve of the refrigerator compartment and calculates the real-time temperature T of the refrigerator compartment. j , waiting for T jIf the temperature is ≤T0, the refrigerator determines that it needs to stop cooling and sends a signal to the control system. The control module then stops the damper, fan, and refrigeration system, and the refrigerator stops cooling. The data processing module then calculates the real-time temperature T of the refrigerator compartment based on the temperature simulation curve in non-cooling mode. j If T during this process j If the value is greater than T0, the system determines that the refrigerator needs cooling and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to cool the refrigerator compartment, and this process repeats. If T... k If the temperature is ≤T0, the data processing module determines that the refrigerator needs to stop cooling and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to stop working. At the same time, the data processing module calculates the real-time temperature T of the refrigerator compartment based on the temperature change curve of the refrigerator compartment in the non-cooling mode simulation. j , waiting for T j If the temperature exceeds T0, the refrigerator determines that cooling is needed and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to cool the refrigerator compartment. The data processing module then calculates the real-time temperature T of the refrigerator compartment based on the temperature simulation curve of the cooling mode. j If T during this process j If the value is less than or equal to T0, the refrigerator is determined to need to stop cooling and a feedback signal is sent to the control system. The control module then controls the damper, fan, and refrigeration system to stop working, and this process is repeated.

[0064] Before the user opens the refrigerator door again, the negative ion generator in the refrigerator compartment should maintain a frequency of t for each time it is turned on. a Stop working t b It operates in a sterilization mode to disinfect the refrigerator. The program restarts after the user opens the refrigerator.

[0065] In a preferred embodiment 1 of the present invention, another refrigerator control method is also provided, specifically... Figure 6 An optional flowchart of the method is shown, such as Figure 6 As shown, the method includes the following steps S601-S620:

[0066] S601: After the user opens and closes the refrigerator door, the door opening / closing sensor transmits an electrical signal to the control module, and the control module controls the camera and temperature sensor to work.

[0067] S602: The camera counts the number of new items and the total density of items in the cold storage room, and transmits the statistical signal to the data processing module;

[0068] S603: Temperature sensor monitors refrigerator compartment temperature T k And transmit the signal to the data processing module;

[0069] S604: The data processing module simulates the temperature change curve of the cold storage compartment based on the storage density and historical temperature of the cold storage compartment, and generates relevant electrical signals to transmit to the control module.

[0070] S605: The control module controls the negative ion generator assembly and timer to turn on, and calculates the on-time T. Simultaneously, it controls the temperature sensor to stop working.

[0071] S606:t>t a If the condition is met, proceed to step S607; otherwise, return to S605 to continue calculating the start-up duration and proceed to step S614.

[0072] S607: The control module stops the negative ion generator assembly from operating, and the timer calculates the stop duration T. Simultaneously, it controls the temperature sensor to monitor the refrigerator compartment temperature T in real time. z ;

[0073] S608:T z >Is T0 true? If so, proceed to step S609;

[0074] S609: The data processing module determines that the refrigerator needs to be cooled and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to work to cool the refrigerator compartment.

[0075] S610:T z Check if ≤T0 is true. If so, proceed to step S611.

[0076] S611: The data processing module determines that the refrigerator does not need to cool down and sends a signal to the control system. The control module then controls the damper, fan, and refrigeration system to stop working, and the refrigerator stops cooling.

[0077] S612:t>t b Is it true? If yes, proceed to step S613; otherwise, return to S606.

[0078] S613: Temperature sensor stops working, data processing module records last temperature T k The time t for the negative ion generator component to restart a ;

[0079] S614: The control module controls the operation of the damper, fan, and refrigeration system to cool the cold storage compartment;

[0080] S615: The data processing module calculates the real-time temperature T of the cold storage compartment based on the simulation curve. j ;

[0081] S616:T j Check if ≤T0 is true. If yes, proceed to step S617; otherwise, return to S614.

[0082] S617: Determines that the refrigerator needs to stop cooling and sends a feedback signal to the control system. The control module then controls the damper, fan, and refrigeration system to stop working, and the refrigerator stops cooling.

[0083] S618: The data processing module calculates the real-time temperature T of the cold storage compartment based on the simulation curve. j ;

[0084] S619:T j > Check if T0 is true. If yes, proceed to step S620; otherwise, return to S617.

[0085] S620: Determines that the refrigerator needs cooling and sends a feedback signal to the control system. The control module then controls the damper, fan, and refrigeration system to work and cool the refrigerator compartment.

[0086] This invention monitors the refrigerator's opening and closing status in real time, intermittently activating the negative ion generator and temperature and humidity sensor to stagger their operating times, thus avoiding inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, during the negative ion generator's operation, the invention simulates the refrigerator compartment's temperature change curve using parameters such as storage density and historical temperature, calculating the real-time temperature of the refrigerator compartment to regulate the refrigerator's cooling status. This ensures more accurate temperature maintenance while maintaining sterilization effectiveness.

[0087] Example 2

[0088] Based on the refrigerator control method provided in Embodiment 1 above, a refrigerator control device is also provided in a preferred embodiment 2 of the present invention, specifically, as shown in... Figure 2 As shown, including:

[0089] The data processing module is used to obtain the temperature prediction curve of the refrigerator's cold compartment;

[0090] The control module includes a first control module and a second control module:

[0091] The first control module is used to control the temperature and humidity sensor to stop working during the operation of the negative ion generator and control the operation of the refrigerator's refrigeration system according to the temperature prediction curve.

[0092] The second control module is used to control the operation of the temperature and humidity sensor during the period when the negative ion generator is off, and to control the operation of the refrigerator's refrigeration system based on the temperature and humidity sensor.

[0093] In the above implementation, to address the problem of strong electromagnetic fields generated when the negative ion generator is turned on, interfering with the temperature and humidity sensor test signals and thus leading to inaccurate refrigerator temperature control, the operating states of the negative ion generator and the temperature and humidity sensor are reasonably adjusted to stagger their operating times, thus avoiding inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, by simulating curves to calculate temperature changes in the refrigerator compartment, the refrigerator's cooling status is controlled, ensuring sterilization effectiveness while making temperature control more accurate.

[0094] The temperature prediction curve includes: The data processing module includes: a first acquisition submodule, used to monitor whether new items are placed in the refrigerator compartment in the refrigeration mode, calculate the density of the new items in the refrigerator compartment when new items are placed, and determine the temperature prediction curve in the refrigeration mode based on the density of the new items; and a second acquisition submodule, used to calculate the total item density in the refrigerator compartment in the non-refrigeration mode, and determine the temperature prediction curve in the non-refrigeration mode based on the total item density.

[0095] The cold storage compartment is equipped with an image acquisition device; the first acquisition submodule includes: a first acquisition unit, used to acquire the total amount of newly added items through the image acquisition device; a first calculation unit, used to acquire the volume of the cold storage compartment and calculate the ratio between the total amount of newly added items and the volume of the cold storage compartment as the density of the newly added items; and a first determination unit, used to determine the interval in which the density of the newly added items lies, and determine the temperature prediction curve under the cooling mode based on the interval; wherein, the temperature prediction curve under the cooling mode is T = T k e At t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. A is a coefficient, and A corresponds to the interval in which the density of the newly added item is located.

[0096] The second acquisition submodule includes: a second acquisition unit, used to acquire the total quantity of items in the cold storage compartment via an image acquisition device; a second calculation unit, used to acquire the volume of the cold storage compartment and calculate the ratio between the total quantity of items in the cold storage compartment and the volume of the cold storage compartment as the total item density; and a second determination unit, used to determine the interval in which the total item density lies, and determine the temperature prediction curve under non-refrigeration mode based on the interval; wherein, the temperature prediction curve under non-refrigeration mode... t is time, T k The temperature is the temperature obtained before the temperature and humidity sensor stops working. B, C, n, and a are coefficients, and B, C, n, and a correspond to the intervals in which the total density of the items is located.

[0097] The first control module includes: a third acquisition submodule for acquiring the operating status of the refrigeration system; a first control submodule for predicting the current temperature of the refrigerator compartment based on the temperature prediction curve in the refrigeration mode when the refrigeration system is in the on state, and controlling the refrigeration system to shut down when the current temperature reaches the preset shut-off temperature; and a second control submodule for predicting the current temperature of the refrigerator compartment based on the temperature prediction curve in the non-refrigeration mode when the refrigeration system is in the off state, and controlling the refrigeration system to turn on when the current temperature reaches the preset turn-on temperature.

[0098] The second control module includes: a third control submodule, used to control the refrigeration system to start when the parameters detected by the temperature and humidity sensor meet the preset start conditions; and a fourth control submodule, used to control the refrigeration system to shut down when the parameters detected by the temperature and humidity sensor meet the preset shut-off conditions.

[0099] The device also includes: a duration acquisition module, used to acquire the on-time and off-time of the negative ion generator before acquiring the temperature prediction curve of the refrigerator compartment; wherein the on-time and off-time are used to ensure that the negative ion concentration in the refrigerator compartment reaches the preset sterilization concentration; and an operation module, used to control the negative ion generator to cycle between on-time and off-time according to the on-time and off-time after the refrigerator is turned on.

[0100] Regarding the apparatus in the above embodiments, the specific manner in which each unit and module performs its operations has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0101] Example 3

[0102] Based on the refrigerator control device provided in Embodiment 2 above, a refrigerator is further provided in a preferred embodiment 3 of the present invention, including: a negative ion generator and a temperature and humidity sensor disposed in the refrigerator compartment, and the refrigerator control device as described above. A schematic diagram of the refrigerator structure is shown below. Figure 1 shown.

[0103] In the above implementation, to address the problem of strong electromagnetic fields generated when the negative ion generator is turned on, interfering with the temperature and humidity sensor test signals and thus leading to inaccurate refrigerator temperature control, the operating states of the negative ion generator and the temperature and humidity sensor are reasonably adjusted to stagger their operating times, thus avoiding inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, by simulating curves to calculate temperature changes in the refrigerator compartment, the refrigerator's cooling status is controlled, ensuring sterilization effectiveness while making temperature control more accurate.

[0104] Example 4

[0105] Based on the refrigerator control method provided in Embodiment 1 above, in a preferred embodiment 4 of the present invention, a storage medium containing computer-executable instructions is also provided, which, when executed by a computer processor, are used to perform the refrigerator control method as described above.

[0106] In the above implementation, to address the problem of strong electromagnetic fields generated when the negative ion generator is turned on, interfering with the temperature and humidity sensor test signals and thus leading to inaccurate refrigerator temperature control, the operating states of the negative ion generator and the temperature and humidity sensor are reasonably adjusted to stagger their operating times, thus avoiding inaccurate temperature and humidity signals caused by the negative ion generator's sterilization function. Simultaneously, by simulating curves to calculate temperature changes in the refrigerator compartment, the refrigerator's cooling status is controlled, ensuring sterilization effectiveness while making temperature control more accurate.

[0107] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented by the invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0108] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A refrigerator control method, characterized by, The refrigerator's cold compartment is equipped with a negative ion generator and a temperature and humidity sensor; the method includes: Obtain the temperature prediction curve of the refrigerator's cold compartment; During the operation of the negative ion generator, the temperature and humidity sensor is controlled to stop working, and the operation of the refrigerator's refrigeration system is controlled according to the temperature prediction curve. During the period when the negative ion generator is off, the temperature and humidity sensor is controlled to operate, and the operation of the refrigerator's refrigeration system is controlled according to the temperature and humidity sensor.

2. The method of claim 1, wherein, The temperature prediction curve includes: a temperature prediction curve in cooling mode and a temperature prediction curve in non-cooling mode; obtaining the temperature prediction curve of the refrigerator's cold compartment includes: In the refrigeration mode, it is monitored whether new items are placed in the cold storage compartment. When new items are placed, the density of the newly added items in the cold storage compartment is calculated, and the temperature prediction curve in the refrigeration mode is determined based on the density of the newly added items. In the non-refrigeration mode, the total item density of the cold storage compartment is calculated, and the temperature prediction curve for the non-refrigeration mode is determined based on the total item density.

3. The method of claim 2, wherein, The cold storage compartment is equipped with an image acquisition device; the density of newly added items in the cold storage compartment is calculated, and a temperature prediction curve under the refrigeration mode is determined based on the density of the newly added items, including: The total quantity of the newly added items is obtained through the image acquisition device; Obtain the volume of the cold storage compartment, and calculate the ratio between the total amount of the newly added items and the volume of the cold storage compartment, which is used as the density of the newly added items; determining an interval in which the density of the new item is located, and determining a temperature prediction curve in the refrigeration mode according to the interval; wherein the temperature prediction curve in the refrigeration mode is T=T k e At , t is time, T k is the temperature obtained before the temperature and humidity sensor stops working, and A is a coefficient and has a corresponding relationship with the interval in which the density of the new item is located.

4. The method of claim 2, wherein, The cold storage room is equipped with an image acquisition device; Calculating the total item density in the cold storage compartment and determining the temperature prediction curve for the non-refrigeration mode based on the total item density, including: The total number of items in the cold storage room is obtained through the image acquisition device; Obtain the volume of the cold storage compartment, and calculate the ratio between the total amount of items in the cold storage compartment and the volume of the cold storage compartment, as the total item density; determining an interval in which the total article density is located, determining a temperature prediction curve in the non-refrigeration mode according to the interval; wherein the temperature prediction curve in the non-refrigeration mode t is time, T k is the temperature acquired before the temperature and humidity sensor stops working, B, C, n, and a are coefficients, and B, C, n, and a have a corresponding relationship with the interval in which the total article density is located.

5. The method of claim 2, wherein, Controlling the operation of the refrigerator's refrigeration system based on the temperature prediction curve includes: Obtain the operating status of the refrigeration system; When the refrigeration system is in the on state, the current temperature of the cold storage compartment is predicted according to the temperature prediction curve under the refrigeration mode, and the refrigeration system is controlled to shut down when the current temperature reaches the preset shutdown temperature. When the refrigeration system is in a closed operating state, the current temperature of the cold storage compartment is predicted according to the temperature prediction curve in the non-refrigeration mode, and the refrigeration system is controlled to start when the current temperature reaches the preset start temperature.

6. The method of claim 1, wherein, Controlling the operation of the refrigerator's refrigeration system based on the temperature and humidity sensor includes: When the parameters detected by the temperature and humidity sensor meet the preset start-up conditions, the refrigeration system is controlled to start. When the parameters detected by the temperature and humidity sensor meet the preset shutdown conditions, the refrigeration system is controlled to shut down.

7. The method of claim 1, wherein, Before obtaining the temperature prediction curve for the refrigerator's cold compartment, the process also includes: The on-time and off-time of the negative ion generator are obtained; wherein the on-time and off-time are used to ensure that the negative ion concentration in the cold storage compartment reaches the preset sterilization concentration; After the refrigerator is turned on, the negative ion generator is controlled to cycle between turning on and off according to the on-time and off-time.

8. A refrigerator control device, characterized by comprising: The refrigerator's cold compartment is equipped with a negative ion generator and a temperature and humidity sensor. The device includes: The acquisition module is used to acquire the temperature prediction curve of the refrigerator compartment; The first control module is used to control the temperature and humidity sensor to stop working during the operation of the negative ion generator, and to control the operation of the refrigerator's refrigeration system according to the temperature prediction curve. The second control module is used to control the temperature and humidity sensor to operate during the period when the negative ion generator is off, and to control the operation of the refrigerator's refrigeration system based on the temperature and humidity sensor.

9. A refrigerator characterized by comprising: include: The negative ion generator and temperature and humidity sensor are installed in the refrigerator compartment, and the refrigerator control device as described in claim 8.

10. A storage medium containing computer-executable instructions, wherein: The computer-executable instructions, when executed by a computer processor, are used to perform the refrigerator control method as described in any one of claims 1 to 7.

Images