Refrigerator refrigeration control method and device, electronic device and storage medium

Abstract

The invention relates to a refrigerator refrigeration control method and device, an electronic device and a storage medium, the refrigerator refrigeration control method comprises the steps that the first total refrigerating capacity needed by all chambers is obtained, and the first total refrigerating capacity is the sum of the refrigerating capacity needed by all objects in all the chambers; according to the first total refrigerating capacity and preset refrigerating time, the first rotating speed of a compressor and the first rotating speed of a fan are determined; the temperature of each chamber is detected, the temperature difference between the temperature of each chamber and a preset temperature threshold value is calculated, and the second total refrigerating capacity needed by each chamber is obtained; according to the second total refrigerating capacity and the preset refrigerating time, the second rotating speed of the compressor and the second rotating speed of the fan are determined; comparing the first rotating speed of the compressor with the second rotating speed of the compressor, comparing the first rotating speed of the fan with the second rotating speed of the fan, and taking the smaller rotating speeds of the compressor and the fan as target rotating speeds; and refrigerating according to the target rotating speed. By means of the control method and device, the problem that refrigeration control of the refrigerator is poor or energy is wasted is solved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a refrigerator refrigeration control method, device, electronic device and storage medium. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature and can extend the shelf life of food. High-temperature air flows through the evaporator, the air temperature drops, and cold air blows into the refrigerator. The refrigerator lowers the temperature of the refrigerator through gas circulation. Among them, the refrigerator's cold storage room is mostly used to store fresh vegetables and fruits, which plays a role in preserving freshness. Controlling the temperature of the cold storage room can meet the needs of most fresh-keeping ingredients.

[0003] At present, the control of the existing refrigerator refrigeration system is based on the temperature in the refrigerator compartment, and the difference between the set temperatures is combined to adjust the compressor to control the refrigeration system. When a high-temperature object is placed in the refrigerator compartment, the temperature in the compartment will change due to the placement of the high-temperature object. However, the sensor at the return air outlet of the compartment will not immediately detect the change in the temperature in the compartment, but will respond to the temperature change in the compartment with a lag, so that the temperature increase caused by the placement of the object in the refrigerator compartment cannot be predicted in time, and the operation of the refrigeration system cannot be controlled in time and accurately. This easily leads to the situation where the temperature in the compartment is excessive or insufficient in cooling capacity after the object is stored or taken out, resulting in poor cooling effect or energy waste.

[0004] With regard to the problem in the related art that inaccurate refrigerator refrigeration control leads to poor refrigeration or energy waste, no effective solution has been proposed so far. Summary of the invention

[0005] In this embodiment, a refrigerator refrigeration control method, device, electronic device and storage medium are provided to solve the problem in the related art that inaccurate refrigerator refrigeration control leads to poor refrigeration or energy waste.

[0006] In a first aspect, a refrigerator refrigeration control method is provided in this embodiment, comprising:

[0007] Obtaining a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of cooling capacities required by all objects in each compartment;

[0008] Determining a first speed of the compressor and a first speed of the fan according to a first total cooling capacity and a preset cooling time;

[0009] Detecting the temperature of each compartment, and calculating the temperature difference between the temperature of each compartment and a preset temperature threshold, to obtain the second total cooling capacity required by each compartment;

[0010] Determining a second speed of the compressor and a second speed of the fan according to a second total cooling capacity and a preset cooling time;

[0011] Comparing the first speed of the compressor with the second speed of the compressor, and taking the smaller speed of the compressor as the target speed of the compressor;

[0012] Compare the first speed of the fan and the second speed of the fan, and use the smaller speed of the fan as the target speed of the fan;

[0013] Cooling is performed according to the compressor target speed and the fan target speed.

[0014] In some embodiments, obtaining a first total cooling capacity required by each compartment includes:

[0015] When a new object is detected in one of the rooms, the new cooling capacity required for cooling the new object is calculated, and the new cooling capacity is added to the cooling capacity required for the original objects in each room to obtain the new total cooling capacity;

[0016] When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required for cooling the taken out object is calculated, and the refrigeration capacity required for cooling the taken out object is deducted from the refrigeration capacity required for the original objects in each chamber to obtain a new total refrigeration capacity.

[0017] In some of the embodiments, when it is detected that a new object is stored in one of the chambers, calculating the new refrigeration capacity required for refrigerating the new object includes:

[0018] According to the mass of the new object, the heat of the new object is obtained, and the new refrigeration capacity required for cooling the new object is calculated according to the heat of the new object;

[0019] When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required to cool the object is calculated, including:

[0020] The heat of the taken-out object is obtained according to the mass of the taken-out object, and the refrigeration capacity required for cooling the taken-out object is calculated according to the heat of the taken-out object.

[0021] In some of the embodiments, an image recognition device is used to detect whether an object is stored in or taken out of a compartment, wherein the image recognition device includes a camera, an infrared sensor, a storage table with a pressure sensor, and a control panel; the specific heat capacity of the object is obtained by the camera, the temperature value of the object is obtained by the infrared sensor, the mass of the object is obtained by the storage table, and the required cooling capacity in each compartment is summarized by the control panel.

[0022] In some embodiments, determining a first speed of the compressor and a first speed of the fan according to a first total cooling capacity and a preset cooling time includes:

[0023] According to the first total cooling capacity and the preset cooling time, the first cooling capacity required per unit time is obtained, and the preset speed gradient table is matched according to the first cooling capacity required per unit time to determine the first speed of the compressor and the first speed of the fan, wherein the preset speed gradient table is obtained by advance testing.

[0024] In some of the embodiments, when the first cooling capacity per unit time is not matched to the corresponding compressor speed and fan speed in the preset speed gradient table, the method further includes:

[0025] According to the preset speed gradient table, the first speed of the compressor and the first speed of the fan are calculated by linear interpolation method.

[0026] In some of the embodiments, when the calculated first speed of the compressor is greater than the rated threshold of the compressor, the rated threshold of the compressor is used as the first speed of the compressor;

[0027] When the calculated first speed of the fan is greater than the rated threshold of the fan, the rated threshold of the fan is used as the first speed of the fan.

[0028] In a second aspect, a refrigerator refrigeration control device is provided in this embodiment, comprising: a first acquisition module, a second acquisition module, a comparison module and a refrigeration module, wherein:

[0029] A first acquisition module is used to acquire a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of the cooling capacities required by all objects in each compartment; and determine a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and a preset cooling time;

[0030] The second acquisition module is used to detect the temperature of each compartment and calculate the temperature difference between the temperature of each compartment and the preset temperature threshold to obtain the second total cooling capacity required by each compartment; according to the second total cooling capacity and the preset cooling time, determine the second speed of the compressor and the second speed of the fan;

[0031] A comparison module is used to compare the first speed of the compressor with the second speed of the compressor, and use the smaller speed of the compressor as the target speed of the compressor; compare the first speed of the fan with the second speed of the fan, and use the smaller speed of the fan as the target speed of the fan;

[0032] The cooling module is used for cooling according to a target speed of the compressor and a target speed of the fan.

[0033] In a third aspect, an electronic device is provided in this embodiment, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the refrigerator refrigeration control method described in the first aspect when executing the computer program.

[0034] In a fourth aspect, a storage medium is provided in this embodiment, on which a computer program is stored, and when the program is executed by a processor, the refrigerator refrigeration control method described in the first aspect is implemented.

[0035] Compared with the related art, the refrigerator refrigeration control method provided in the present embodiment obtains the first total refrigeration capacity required by each compartment, wherein the first total refrigeration capacity is the sum of the refrigeration capacities required by all objects in each compartment; determines the first speed of the compressor and the first speed of the fan according to the first total refrigeration capacity and the preset refrigeration time; detects the temperature of each compartment, and calculates the temperature difference between the temperature of each compartment and the preset temperature threshold to obtain the second total refrigeration capacity required by each compartment; determines the second speed of the compressor and the second speed of the fan according to the second total refrigeration capacity and the preset refrigeration time; compares the first speed of the compressor and the second speed of the compressor, and uses the smaller compressor speed as the compressor target speed; compares the first speed of the fan and the second speed of the fan, and uses the smaller fan speed as the fan target speed; performs refrigeration according to the compressor target speed and the fan target speed, thereby realizing precise control of the compressor and fan speeds, and solving the problem of poor refrigeration or energy waste caused by inaccurate refrigerator refrigeration control.

[0036] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 This is a hardware structure block diagram of a terminal of the refrigerator refrigeration control method of this embodiment.

[0039] Figure 2 4 is a flow chart of the refrigerator refrigeration control method of this embodiment.

[0040] Figure 3 Schematic diagram of the structure of the image recognition device in this embodiment.

[0041] Figure 4 This is a flow chart of another refrigerator refrigeration control method of this embodiment.

[0042] Figure 5 It is a structural block diagram of the refrigerator refrigeration control device of this embodiment. DETAILED DESCRIPTION

[0043] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0044] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0045] The method embodiment provided in this embodiment can be executed in a terminal, a computer or a similar computing device. For example, running on a terminal, Figure 1 FIG. 1 is a hardware structure block diagram of a terminal of the refrigerator refrigeration control method of this embodiment. Figure 1 As shown, the terminal may include one or more ( Figure 1 Only one is shown in the figure) processor 102 and memory 104 for storing data, wherein processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA. The above terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0046] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the refrigerator refrigeration control method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0047] The transmission device 106 is used to receive or send data via a network. The above network includes a wireless network provided by the communication provider of the terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0048] In this embodiment, a refrigerator refrigeration control method is provided. Figure 2 is a flow chart of the refrigerator refrigeration control method of this embodiment, such as Figure 2 As shown, the process includes the following steps:

[0049] Step S201, obtaining a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of cooling capacities required by all objects in each compartment.

[0050] Specifically, the refrigerator has a single compartment and multiple compartments, wherein both single compartment and multiple compartment refrigerators are suitable for the solution of this embodiment, and this embodiment takes the multiple compartment refrigerator as an example for explanation. In order to accurately control the operation of the compressor and the fan to prevent the situation of excess or insufficient refrigeration capacity, this embodiment controls the first speed of the compressor and the first speed of the fan by accurately detecting the refrigeration capacity required for refrigerating the objects in each compartment. Among them, each compartment is first separately configured with an image recognition device for identifying the objects put in or taken out. First, when each object is put into the refrigerator, each object is first identified by the image recognition device, and the refrigeration capacity required for each object to reach the preset refrigeration temperature is determined according to the recognition result, and the refrigeration capacity required for refrigerating all the stored objects is added to obtain the refrigeration capacity required for each compartment. When an object is taken out, the taken out object is identified by the image recognition device, and the refrigeration capacity required for refrigerating the object is calculated. On the basis of the refrigeration capacity required for the original object in the compartment, the refrigeration capacity required for the taken out object is deducted, and then the calculated refrigeration capacity of each compartment is added to obtain the first total refrigeration capacity.

[0051] Step S202: determining a first speed of the compressor and a first speed of the fan according to a first total cooling capacity and a preset cooling time.

[0052] Specifically, first, the compressor speed and the fan speed are tested for cooling capacity by a cooling capacity tester, and the cooling capacity obtained by different compressor speeds and fan speeds within a unit time (for example, within 1 minute) is counted, so as to obtain a speed and cooling capacity matching table. The higher the speed, the higher the cooling capacity generated. After the first total cooling capacity is calculated, the cooling capacity within a unit time is obtained according to the set cooling time, and according to the cooling capacity required within the unit time, the corresponding compressor speed and fan speed on the speed and cooling capacity matching table are matched to obtain the first compressor speed N1 and the first fan speed V1.

[0053] Step S203: Detect the temperature of each compartment, and calculate the temperature difference between the temperature of each compartment and a preset temperature threshold to obtain the second total cooling capacity required by each compartment.

[0054] Specifically, in order to better control the energy consumption of the equipment, the temperature of the compartment is detected. When an object is placed in or taken out of the refrigerator, the temperature of the compartment is detected by a temperature sensor in the compartment, and the temperature difference between the detected temperature of the compartment and a preset temperature threshold is calculated. The refrigeration capacity required for refrigeration of the compartment is determined according to the temperature difference. If objects are taken out or placed in multiple compartments, the refrigeration capacity required for refrigeration of the multiple compartments is counted according to the temperature difference to obtain the second total refrigeration capacity.

[0055] Step S204: determining a second speed of the compressor and a second speed of the fan according to the second total cooling capacity and the preset cooling time.

[0056] The required cooling capacity per unit time is calculated based on the second total cooling capacity and the preset cooling time. The corresponding compressor speed and fan speed are matched according to the required cooling capacity per unit time and the speed and cooling capacity matching table obtained from the above test to obtain the second compression speed N2 and the second fan speed V2.

[0057] Step S205, compare the first speed of the compressor and the second speed of the compressor, and use the smaller compressor speed as the compressor target speed; compare the first speed of the fan and the second speed of the fan, and use the smaller fan speed as the fan target speed; perform cooling according to the compressor target speed and the fan target speed.

[0058] Specifically, the first compressor speed N1 and the second compressor speed N2 detected by the two methods are compared, and based on the consideration of energy saving, the smaller compressor speed is selected as the target compressor speed; the first fan speed V1 and the second fan speed V2 detected by the two methods are compared, and similarly, the smaller fan speed is selected as the target fan speed; the compressor is controlled to run at the target compressor speed for a preset time for cooling, and the fan is controlled to run at the target fan speed for a preset time for cooling.

[0059] Through the above steps S201 to S205, a first total cooling capacity required by each compartment is obtained, wherein the first total cooling capacity is the sum of the cooling capacities required by all objects in each compartment; a first speed of the compressor and a first speed of the fan are determined according to the first total cooling capacity and a preset cooling time; the temperature of each compartment is detected, and a temperature difference between the temperature of each compartment and a preset temperature threshold is calculated to obtain a second total cooling capacity required by each compartment; a second speed of the compressor and a second speed of the fan are determined according to the second total cooling capacity and the preset cooling time; the first speed of the compressor and the second speed of the compressor are compared, and the smaller compressor speed is used as the compressor target speed; the first speed of the fan and the second speed of the fan are compared, and the smaller fan speed is used as the fan target speed; and cooling is performed according to the compressor target speed and the fan target speed. Compared with the prior art in which the rotation speeds of the compressor and the fan are adjusted by only detecting the temperature of the compartment by a temperature sensor, when the present embodiment detects that an object in any compartment in the refrigerator has changed, the refrigeration capacity required by the object in the refrigerator is recalculated, and the first rotation speed of the compressor and the first rotation speed of the fan are matched according to the calculated new refrigeration capacity demand, and then the temperature difference between the compartment temperature and the preset temperature is calculated to obtain the second rotation speed of the compressor and the second rotation speed of the fan, and the first rotation speed of the compressor and the second rotation speed of the compressor, the first rotation speed of the fan and the second rotation speed of the fan are comprehensively compared to obtain the optimal speed, and the refrigeration operation is controlled by the optimal speed, thereby improving the accuracy of the refrigerator refrigeration control, improving the refrigeration effect and reducing energy waste.

[0060] In some embodiments, obtaining a first total cooling capacity required by each compartment includes:

[0061] When a new object is detected in one of the rooms, the new cooling capacity required for cooling the new object is calculated, and the new cooling capacity is added to the cooling capacity required for the original objects in each room to obtain the new total cooling capacity;

[0062] When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required for cooling the taken out object is calculated, and the refrigeration capacity required for cooling the taken out object is deducted from the refrigeration capacity required for the original objects in each chamber to obtain a new total refrigeration capacity.

[0063] Specifically, since the objects in the refrigerator may change at any time, being taken out or having new objects put in will affect the refrigeration capacity required in each compartment. When the objects in the compartment change, the first total refrigeration capacity required for each compartment needs to be re-counted, wherein, when it is detected that a new object is stored in one of the compartments, the temperature of the new object is relatively high, which will affect the temperature of the entire compartment. When the new object is put in, the new object is first identified in the image recognition device, and the refrigeration capacity required for refrigerating the new object is calculated by the image recognition device. In this way, when a new object is stored, the refrigeration capacity calculated for the new object is automatically added to the refrigeration capacity calculated in the original compartments to obtain a new first total refrigeration capacity. Similarly, when an object is taken out, the object is identified in the image recognition device, and the refrigeration capacity required for refrigerating the taken out object is calculated by the image recognition device, and the refrigeration capacity of the taken out object is deducted from the refrigeration capacity calculated in the original compartments to obtain a new first total refrigeration capacity.

[0064] In another embodiment, when it is detected that a new object is stored in one of the chambers, calculating the new refrigeration capacity required for cooling the new object includes: obtaining the heat of the new object according to the mass of the new object, and calculating the new refrigeration capacity required for cooling the new object according to the heat of the new object;

[0065] When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required for cooling the taken out object is calculated, including: obtaining the heat of the taken out object according to the mass of the taken out object, and calculating the refrigeration capacity required for cooling the taken out object according to the heat of the taken out object.

[0066] Specifically, the image recognition device is used to detect whether a new object is stored in the compartment or an old object is taken out. When an object is stored in or taken out, the image recognition device is used to detect the mass of the object, and at the same time, the temperature of the object and the temperature of the refrigerator compartment where the object is located are detected. The heat calculation formula is used to calculate the heat consumed to cool the object to the preset refrigeration temperature of the compartment, wherein the heat calculation formula is as follows:

[0067]

[0068] Where c is the specific heat capacity of the object, q m is the mass of the object, t2 is the temperature of the object, and t1 is the preset refrigeration temperature of the compartment;

[0069] The calculated amount of heat consumed by the object for cooling is the cooling capacity of the object. If a new object is taken out, the calculated cooling capacity is deducted from the total cooling capacity required for cooling all objects in the original compartments. If a new object is stored, the calculated cooling capacity is added to the total cooling capacity required for cooling all objects in the original compartments, thereby obtaining a new first total cooling capacity after the change. The first compressor speed and the first fan speed are determined based on the new first total cooling capacity. At the same time, the temperature difference is recalculated through the temperature sensor to obtain a new second compressor speed and second fan speed. Finally, based on energy saving considerations, a smaller compressor speed and fan speed are selected to cool the refrigerator compartments.

[0070] In some of these embodiments, Figure 3 is a schematic diagram of the structure of the image recognition device in this embodiment, which detects whether an object is stored or taken out of the chamber through the image recognition device, wherein, Figure 3 As shown, the image recognition device 30 includes a camera 31, an infrared sensor 32, a storage table 33 with a pressure sensor, and a control board 34; the specific heat capacity of the object is obtained by the camera 31, the temperature value of the object is detected by the infrared sensor 32, the mass of the object is obtained by the storage table 33, and the cooling capacity required in each compartment is summarized by the control board 34.

[0071] Specifically, the image recognition device detects whether an object is stored or taken out of the compartment. The image recognition device 30 is mainly composed of a camera 31, an infrared sensor 32, a storage table 33 with a pressure sensor, and a control board 34; wherein the camera 31 is used to obtain the specific heat capacity of the object; the infrared sensor 32 is used to detect the temperature value of the object; the storage table 33 is used to obtain the mass of the object; and the control board 34 is used to summarize the refrigeration required in each compartment. When the user stores the object to be refrigerated in the refrigerator, he only needs to place the object on the storage table 33 with a pressure sensor. The system will calculate the mass of the substance according to the pressure change on the storage table 33. The camera 31 will autonomously identify the type of the object and search for the specific heat capacity of the object entered into the system in advance. The infrared sensor 32 detects the temperature of the object. The control board 34 calculates the heat of the object according to the data obtained by the detection of each component, and then obtains the refrigeration required for refrigerating the object.

[0072] In another embodiment, determining a first compressor speed and a first fan speed according to a first total cooling capacity and a preset cooling time includes:

[0073] According to the first total cooling capacity and the preset cooling time, the first cooling capacity required per unit time is obtained, and the preset speed gradient table is matched according to the first cooling capacity required per unit time to determine the first speed of the compressor and the first speed of the fan, wherein the preset speed gradient table is obtained by testing in advance. When the first cooling capacity per unit time does not match the corresponding compressor speed and fan speed in the preset speed gradient table, it also includes:

[0074] According to the preset speed gradient table, the first speed of the compressor and the first speed of the fan are calculated by linear interpolation method.

[0075] When the calculated first speed of the compressor is greater than the rated threshold of the compressor, the rated threshold of the compressor is used as the first speed of the compressor; when the calculated first speed of the fan is greater than the rated threshold of the fan, the rated threshold of the fan is used as the first speed of the fan.

[0076] Specifically, first, the compressor speed and the fan speed are tested for cooling capacity by a cooling capacity tester, the compressor speed and the fan speed are set according to a certain gradient ratio, and the cooling capacity obtained by different compressor speeds and fan speeds within a unit time (for example, within 1 minute) is counted, thereby obtaining a speed gradient table. The higher the speed, the higher the cooling capacity generated. After the first total cooling capacity is calculated, the first cooling capacity required within the unit time is obtained according to the set cooling time. According to the first cooling capacity required within the unit time, the corresponding compressor speed and fan speed on the speed gradient table are matched to obtain the first compressor speed N1 and the first fan speed V1.

[0077] In addition, when the first cooling capacity per unit time is not matched to the corresponding compressor speed and fan speed in the preset speed gradient table, the first compressor speed and the first fan speed are calculated using the linear interpolation method based on the data collected in the preset speed gradient table. For example, the compressor speed corresponding to the cooling capacity Q1 is N1, and the compressor speed corresponding to the cooling capacity Q2 is N2. Then for any cooling capacity Q between Q1 and Q2, the corresponding compressor speed N can be calculated using the following linear interpolation formula:

[0078] N=N1+(Q-Q1)×(N2-N1) / (Q2-Q1);

[0079] Similarly, the fan speed can also be calculated using a similar linear interpolation formula.

[0080] In addition, the rated threshold of the compressor and fan refers to the maximum safe operating speed determined when the equipment is designed and manufactured. This threshold is usually determined by the manufacturer based on factors such as the material, structure, and durability of the equipment, and is clearly marked in the technical specifications of the equipment. In the refrigeration system, the speed of the compressor and fan needs to be dynamically adjusted according to the refrigeration demand. However, in order to ensure the safety of the equipment and extend its service life, it is necessary to ensure that the speed does not exceed the rated threshold. Exceeding the rated speed may cause overheating, mechanical failure, or even damage to the equipment. If the calculated first speed of the compressor exceeds its rated threshold, the control system will automatically adjust the speed of the compressor to the rated threshold. Even if the refrigeration demand is higher, the compressor will run at the maximum safe speed and use the maximum safe speed of the compressor as the first speed of the compressor. Similarly, if the calculated speed of the fan exceeds its rated threshold, the control system will also limit the speed of the fan to the maximum safe speed and use the maximum safe speed of the fan as the first speed of the fan.

[0081] This embodiment also provides a refrigerator refrigeration control method. Figure 4 is a flow chart of another refrigerator refrigeration control method of this embodiment. Figure 4 As shown, the process includes the following steps:

[0082] Step S401, determine whether an object is deposited or taken out, if a new object is deposited, execute step S402, if an object is taken out, execute step S408;

[0083] Step S402, calculating the new cooling capacity required for cooling the new object, and adding the new cooling capacity to the cooling capacity required for the original objects in each compartment to obtain a first total cooling capacity;

[0084] Step S403, determining a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and the preset cooling time;

[0085] Step S404, detecting the temperature of each compartment, and calculating the temperature difference between the temperature of each compartment and a preset temperature threshold, to obtain the second total cooling capacity required by each compartment;

[0086] Step S405, determining a second speed of the compressor and a second speed of the fan according to the second total cooling capacity and the preset cooling time;

[0087] Step S406, comparing the first compressor speed and the second compressor speed, and using the smaller compressor speed as the compressor target speed; comparing the first fan speed and the second fan speed, and using the smaller fan speed as the fan target speed;

[0088] Step S407, performing cooling according to the target speed of the compressor and the target speed of the fan; after the cooling is completed, returning to step S401.

[0089] Step S408, calculating the refrigeration capacity required for cooling the removed object, and deducting the refrigeration capacity required for cooling the removed object from the refrigeration capacity required for the original objects in each compartment to obtain a first total refrigeration capacity, and returning to step S403.

[0090] Through the above steps S401 to S408, compared with the prior art in which the rotation speeds of the compressor and the fan are adjusted by only detecting the temperature of the compartment by the temperature sensor, when the present embodiment detects that the object in any compartment in the refrigerator has changed, the refrigeration capacity required by the object in the refrigerator is recalculated, and the first rotation speed of the compressor and the first rotation speed of the fan are matched according to the calculated new refrigeration capacity demand, and then the temperature difference between the compartment temperature and the preset temperature is calculated to obtain the second rotation speed of the compressor and the second rotation speed of the fan, and the first rotation speed of the compressor and the second rotation speed of the compressor, the first rotation speed of the fan and the second rotation speed of the fan are comprehensively compared to obtain the optimal speed, and the refrigeration operation is controlled by the optimal speed, thereby improving the accuracy of the refrigerator refrigeration control, improving the refrigeration effect and reducing energy waste.

[0091] In this embodiment, a refrigerator refrigeration control device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. The terms "module", "unit", "subunit" and the like used below can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware is also possible and conceivable.

[0092] Figure 5 : is a structural block diagram of the refrigerator refrigeration control device of this embodiment, such as Figure 5 As shown, the device 50 includes: a first acquisition module 51, a second acquisition module 52, a comparison module 53 and a cooling module 54, wherein:

[0093] The first acquisition module 51 is used to acquire a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of the cooling capacities required by all objects in each compartment; and determine a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and a preset cooling time;

[0094] The second acquisition module 52 is used to detect the temperature of each compartment and calculate the temperature difference between the temperature of each compartment and a preset temperature threshold to obtain the second total cooling capacity required by each compartment; determine the second speed of the compressor and the second speed of the fan according to the second total cooling capacity and the preset cooling time;

[0095] The comparison module 53 is used to compare the first speed of the compressor with the second speed of the compressor, and use the smaller speed of the compressor as the target speed of the compressor; compare the first speed of the fan with the second speed of the fan, and use the smaller speed of the fan as the target speed of the fan;

[0096] The cooling module 54 is used to perform cooling according to the target speed of the compressor and the target speed of the fan.

[0097] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0098] In this embodiment, an electronic device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0099] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0100] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0101] S1, obtaining a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of cooling capacities required by all objects in each compartment;

[0102] S2, determining a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and a preset cooling time;

[0103] S3, detecting the temperature of each compartment, and calculating the temperature difference between the temperature of each compartment and a preset temperature threshold, to obtain the second total cooling capacity required by each compartment;

[0104] S4, determining a second speed of the compressor and a second speed of the fan according to the second total cooling capacity and the preset cooling time;

[0105] S5, comparing the first speed of the compressor and the second speed of the compressor, and using the smaller speed of the compressor as the target speed of the compressor; comparing the first speed of the fan and the second speed of the fan, and using the smaller speed of the fan as the target speed of the fan;

[0106] S6, performing cooling according to the target speed of the compressor and the target speed of the fan.

[0107] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and will not be repeated in this embodiment.

[0108] In addition, in combination with the refrigerator refrigeration control method provided in the above embodiments, a storage medium can also be provided in this embodiment to implement the refrigerator refrigeration control method. The storage medium stores a computer program; when the computer program is executed by a processor, any refrigerator refrigeration control method in the above embodiments is implemented.

[0109] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0110] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0111] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0112] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0113] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0114] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A refrigerator refrigeration control method, characterized in that: include: Obtaining a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of cooling capacities required by all objects in the compartments; Determining a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and a preset cooling time; Detecting the temperature of each compartment, and calculating the temperature difference between the temperature of each compartment and a preset temperature threshold, to obtain a second total cooling capacity required by each compartment; Determining a second speed of the compressor and a second speed of the fan according to the second total cooling capacity and the preset cooling time; comparing the first compressor speed and the second compressor speed, and using the smaller compressor speed as the compressor target speed; Comparing the first speed of the fan with the second speed of the fan, and taking the smaller speed of the fan as the target speed of the fan; Refrigeration is performed according to the compressor target speed and the fan target speed.

2. The refrigerator refrigeration control method according to claim 1, characterized in that: The obtaining of the first total cooling capacity required by each of the compartments includes: When a new object is detected to be stored in one of the chambers, the new cooling capacity required for cooling the new object is calculated, and the new cooling capacity is added to the cooling capacity required for the original objects in each chamber to obtain a new total cooling capacity; When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required for cooling the taken out object is calculated, and the refrigeration capacity required for cooling the taken out object is deducted from the refrigeration capacity required for the original objects in each chamber to obtain a new total refrigeration capacity.

3. The refrigerator refrigeration control method according to claim 2, characterized in that: When a new object is detected to be stored in one of the chambers, the new refrigeration capacity required for refrigerating the new object is calculated, including: According to the mass of the new object, the heat of the new object is obtained, and according to the heat of the new object, a new refrigeration capacity required for refrigerating the new object is calculated; When it is detected that an object is taken out of one of the chambers, the refrigeration capacity required to cool the object is calculated, including: The heat of the taken-out object is obtained according to the mass of the taken-out object, and the cooling capacity required for cooling the taken-out object is calculated according to the heat of the taken-out object.

4. The refrigerator refrigeration control method according to claim 3, characterized in that: include: An image recognition device is used to detect whether an object is stored in or taken out of the compartment, wherein the image recognition device includes a camera, an infrared sensor, a storage table with a pressure sensor, and a control panel; the specific heat capacity of the object is obtained by the camera, the temperature value of the object is obtained by the infrared sensor, the mass of the object is obtained by the storage table, and the required cooling capacity in each compartment is summarized by the control panel.

5. The refrigerator refrigeration control method according to claim 1, characterized in that: The determining, according to the first total refrigeration capacity and the preset refrigeration time, a first speed of the compressor and a first speed of the fan comprises: According to the first total cooling capacity and the preset cooling time, the first cooling capacity required per unit time is obtained, and the first speed of the compressor and the first speed of the fan are determined by matching the preset speed gradient table according to the first cooling capacity required per unit time, wherein the preset speed gradient table is obtained by advance testing.

6. The refrigerator refrigeration control method according to claim 5, characterized in that: When the first cooling capacity per unit time is not matched to the corresponding compressor speed and fan speed in the preset speed gradient table, the method further includes: According to the preset speed gradient table, the first speed of the compressor and the first speed of the fan are calculated using a linear interpolation method.

7. The refrigerator refrigeration control method according to claim 6, characterized in that: The method further comprises: When the calculated first speed of the compressor is greater than the rated threshold of the compressor, the rated threshold of the compressor is used as the first speed of the compressor; When the calculated first rotation speed of the fan is greater than the rated threshold of the fan, the rated threshold of the fan is used as the first rotation speed of the fan.

8. A refrigerator refrigeration control device, characterized in that: include: A first acquisition module, a second acquisition module, a comparison module and a cooling module, wherein: The first acquisition module is used to acquire a first total cooling capacity required by each compartment, wherein the first total cooling capacity is the sum of cooling capacities required by all objects in each compartment; and determine a first speed of the compressor and a first speed of the fan according to the first total cooling capacity and a preset cooling time; The second acquisition module is used to detect the temperature of each compartment and calculate the temperature difference between the temperature of each compartment and a preset temperature threshold to obtain the second total cooling capacity required by each compartment; determine the second speed of the compressor and the second speed of the fan according to the second total cooling capacity and the preset cooling time; The comparison module is used to compare the first speed of the compressor with the second speed of the compressor, and use the smaller speed of the compressor as the target speed of the compressor; compare the first speed of the fan with the second speed of the fan, and use the smaller speed of the fan as the target speed of the fan; The refrigeration module is used to perform refrigeration according to the compressor target speed and the fan target speed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to execute the refrigerator refrigeration control method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the refrigerator refrigeration control method according to any one of claims 1 to 7 are implemented.

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