Refrigerator temperature adjusting method and refrigeration equipment

Abstract

The invention provides a refrigerator temperature adjusting method and refrigeration equipment, and the method comprises the steps: obtaining and calculating an average door opening time interval # imgabs0 # according to the operation parameters of a refrigerator in a previous sampling interval, obtaining the door opening time of the refrigerator in a current sampling interval, and calculating a current door opening time interval delta tnow according to the door opening time of the refrigerator in the current sampling interval; acquiring the condition of articles stored in the refrigerator in the current sampling interval; and at least adjusting the current target temperature Tset of the refrigerator according to the average door opening time interval # imgabs 1 #, the current door opening time interval delta tnow and the article condition. According to the method, the habit of using the refrigerator by the user can be accurately measured, safety of articles in the refrigerator can be guaranteed, high efficiency and energy conservation of the refrigerator can be achieved, power consumption of the refrigerator is reduced to the maximum extent, the use cost of the refrigerator is reduced, and the intelligent degree of the refrigerator and the experience effect of the user are improved.

Description

Technical Field

[0001] The invention relates to the field of refrigerator control, and in particular to a refrigerator temperature adjustment method and a refrigeration device. Background Art

[0002] With the continuous development of smart technology and intelligent technology, high-end smart refrigerators with powerful functions and numerous modes are gradually entering people's lives and becoming an indispensable part of life. Most smart refrigerators on the market currently have more compartments, and each compartment has different mode gears (for example, the refrigerator compartment supports quick cooling mode, the freezer compartment supports quick freezing mode, and the variable temperature compartment supports the mother and baby gear, etc.) and different temperature ranges (for example, the refrigerator compartment is 0℃ to 9℃, the freezer compartment is -22℃ to -14℃, and the variable temperature compartment is -22℃ to 9℃, etc.). These modes and temperatures can only be operated according to the fixed modes and temperatures set by people.

[0003] Fixed operating modes and temperature settings not only fail to meet the preservation requirements of most ingredients, but also fail to take into account the energy consumption of the refrigerator. For example, there are many ingredients stored in the refrigerator, but the refrigerator mode is set to a regular mode with a fixed temperature; or, people do not use the refrigerator for a long time, but the operating mode of the refrigerator is not automatically adjusted to the holiday mode; or, when vegetables and fruits with a lot of water are stored in the refrigerator, the refrigerator temperature is adjusted too high, and when the refrigerator is filled with more root and leafy vegetables, the temperature is adjusted to a lower level. Therefore, the current refrigerator temperature cannot be dynamically adjusted according to the user's usage habits and the ingredients stored in the refrigerator, resulting in poor food preservation effects and reduced user experience. Summary of the invention

[0004] One of the purposes of the present invention is to provide a refrigerator temperature adjustment method to solve the technical problem that the refrigerator temperature is adjusted continuously according to a fixed temperature set by the user in the prior art, so that the refrigerator cannot maximize the preservation or freezing effect of items and the energy consumption of the refrigerator.

[0005] One of the objects of the present invention is to provide a refrigeration device.

[0006] In order to achieve one of the above-mentioned purposes of the invention, the present invention provides a refrigerator temperature adjustment method, comprising: obtaining and calculating the average door opening time interval according to the operating parameters of the refrigerator in the previous sampling interval Obtain and calculate the current door opening time interval Δt based on the refrigerator door opening time in the current sampling interval now ; Get the items stored in the refrigerator within the current sampling interval; wherein the item status includes the number of item types Q and the total volume of items V food ; According to the average door opening time interval The current door opening time interval Δt now and the item conditions, at least adjust the current target temperature T of the refrigerator set .

[0007] As a further improvement of an embodiment of the present invention, the method also includes: the previous sampling interval is: a time interval formed by tracing back the preset interval length threshold ΔT with the current most recent refrigerator door opening time as the end time; the current sampling interval is: a time interval formed by tracing back the preset interval length threshold with the most recent refrigerator door opening time as the start time; the operating parameters include at least one of the number of refrigerator door opening times and the refrigerator door opening time.

[0008] As a further improvement of an embodiment of the present invention, the "obtaining and calculating the average door opening time interval according to the operating parameters of the refrigerator in the previous sampling interval" Specifically, it includes: collecting and counting the number of refrigerator door openings in the previous sampling interval to obtain the cumulative number of door openings n; calculating the average door opening time interval according to the cumulative number of door openings n and the interval length threshold ΔT ; Wherein, the average door opening time interval It is equal to the ratio of the interval length threshold ΔT to the cumulative number of door openings n.

[0009] As a further improvement of an embodiment of the present invention, the "obtaining and calculating the current door opening time interval Δt according to the refrigerator door opening time in the current sampling interval" now "Specifically includes: recording the time of two consecutive refrigerator door openings closest to the current time, obtaining a first door opening time t1 and a second door opening time t2; calculating the current door opening time interval Δt according to the first door opening time t1 and the second door opening time t2 now ; Wherein, the current door opening time interval Δt now It is equal to the difference between the second door opening time t2 and the first door opening time t1.

[0010] As a further improvement of an embodiment of the present invention, the “obtaining the situation of items stored in the refrigerator in the current sampling interval” specifically includes: detecting and recording the types and shapes of items stored in the refrigerator in the current sampling interval based on the sensor; calculating and counting the number Q of the types of items and the total volume V of the items stored in the refrigerator according to the types of items and the shapes of the items. food .

[0011] As a further improvement of an embodiment of the present invention, the “according to the average door opening time interval The current door opening time interval Δt now and the item conditions, at least adjust the current target temperature T of the refrigeratorset "Specifically include: obtaining the current operating mode of the refrigerator and the maximum volume V that can store items fridge ; Wherein, the operating mode carries at least the working status information of the refrigerator compressor; according to the current door opening time interval Δt now The average door opening time Determine the frequency of opening the refrigerator door; according to the total volume V of the items food With the maximum volume V fridge , determine the amount of items stored in the refrigerator; according to the current operating mode of the refrigerator, the frequency of opening the refrigerator door and the amount of items stored in the refrigerator, at least adjust the current target temperature T of the refrigerator set .

[0012] As a further improvement of one embodiment of the present invention, the current operating mode of the refrigerator includes at least one of a first mode, a second mode, a third mode and a fourth mode; wherein the first mode is used to control the compressor to operate in a periodic start or stop state to keep the refrigerator at a set temperature; the second mode is used to control the compressor to operate in a high-power state to quickly reduce the temperature inside the refrigerator; the third mode is used to control the compressor to operate in a low-power state to maintain the refrigerator at a higher temperature; the fourth operating mode is used to adaptively control the start or stop of the compressor according to the ambient temperature inside the refrigerator.

[0013] As a further improvement of an embodiment of the present invention, the “according to the current door opening time interval Δt now The average door opening time Determining the frequency of opening the refrigerator door specifically includes: determining the current door opening time interval Δt now Is it less than or equal to the average door opening time interval? If yes, it is determined that the refrigerator door is opened frequently; if no, it is determined that the refrigerator door is not opened frequently; the “according to the total volume V of the items food With the maximum volume V fridge , determine the storage volume of items in the refrigerator” specifically includes: determining the total volume V of the items food Is it less than the maximum volume V fridge If so, it is determined that the amount of items stored in the refrigerator is small; if not, it is determined that the amount of items stored in the refrigerator is large.

[0014] As a further improvement of an embodiment of the present invention, the “adjusting at least the current target temperature T of the refrigerator according to the current operation mode of the refrigerator, the frequency of opening the refrigerator door, and the amount of items stored in the refrigerator” set "Specifically includes: according to the types of items, determining the most suitable storage temperature T for different types of items fand suitable storage temperature range; determine whether the number of item types Q is 1; if so, determine the optimal storage temperature T corresponding to the item according to the current operation mode of the refrigerator and the optimal storage temperature T corresponding to the item. f , at least adjust the refrigerator's current target temperature T set If not, then at least adjust the current target temperature T of the refrigerator according to the average value of the intersection T of the current operating mode of the refrigerator and the suitable temperature range corresponding to different types of items. set ; wherein, the suitable temperature range intersection T is the intersection of storage temperature ranges corresponding to several types of items; the suitable temperature range intersection T includes several storage temperatures; the average value of the suitable temperature range intersection T is numerically equal to the average value of all storage temperatures in the suitable temperature range intersection T rounded down.

[0015] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the first mode; the “according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item” f , at least adjust the refrigerator's current target temperature T set "Specifically include: when it is determined that the refrigerator door is opened frequently, the current target temperature T set Set to the most suitable storage temperature T for the item f , and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to the second mode; when it is determined that the refrigerator door is not opened frequently, the actual temperature T of the current refrigerator is obtained. now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max , and the current target temperature of the refrigerator is T set Set to the most suitable storage temperature T for the item f , while at the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, the refrigerator maintains the current operation mode and continues to operate for the maximum door opening time interval Δt max Then, adjust the current operating mode of the refrigerator to the third mode.

[0016] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the second mode; the “according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item” f , at least adjust the refrigerator's current target temperature T set "Specifically includes: obtaining the total running time t corresponding to the current running mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l ; where t l =tr -t d When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator is set set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the first mode; when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is adjusted to the first mode; set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run max[Ceiling(Δt),t l ], the current operation mode of the refrigerator is adjusted to the first mode; when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the maximum door opening time interval Δt of the refrigerator in the previous sampling interval is obtained max , the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate for the maximum door opening time interval Δt max After that, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently, when the amount of items stored in the refrigerator is large, the maximum door opening time interval Δt of the refrigerator in the previous sampling interval is obtained max , set the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate V fridge *Δt max / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0017] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the third mode; the “according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item” f , at least adjust the refrigerator's current target temperature T set "Specifically includes: obtaining the running time t corresponding to the current operating mode of the refrigerator d When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t dLess than the average door opening time interval Keep the refrigerator running in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T set Set to the most suitable storage temperature T f When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval Or when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is set to set Set to the most suitable storage temperature T f and adjust the current operating mode of the refrigerator to the first mode.

[0018] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the fourth mode; the “according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item” f , at least adjust the refrigerator's current target temperature T set "Specifically includes: obtaining the running time t corresponding to the current operating mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operating mode and continues to operate max(t d ,Δt max ) time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is maintained and continued to operate max(Δt max *V fridge / V food ,t d *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

[0019] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the first mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigerator set "Specifically include: when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is setThe target temperature T is set to the temperature corresponding to the current operation mode of the refrigerator, and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to the second mode; when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set The method is set to the average value of the intersection T of the suitable temperature range, and when there are many items stored in the refrigerator, the current operation mode of the refrigerator is adjusted to the second mode; when it is determined that the refrigerator door is opened frequently and the intersection T of the suitable temperature range is empty, the current operation mode of the refrigerator is adjusted to the fourth mode.

[0020] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the first mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigerator set "Specifically include: Get the actual temperature T of the current refrigerator now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ; When it is determined that the refrigerator door is not opened frequently, the current target temperature of the refrigerator is T set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set the temperature corresponding to the first mode and set the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After a certain time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently, the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and set to the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After a certain time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently and the intersection T of the suitable temperature range is empty, the current operation mode of the refrigerator is adjusted to the fourth mode, and the fourth mode is maintained for Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0021] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the second mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigeratorset "Specifically includes: obtaining the total running time t corresponding to the current running mode of the refrigerator r and the elapsed time t d , calculate the remaining running time t of the current running mode l ; where t l =t r -t d ; When it is determined that the refrigerator door is opened frequently, the current target temperature of the refrigerator is T set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the first mode; when it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is small, and the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and keep the refrigerator in the current operation mode and continue to run for the remaining operation time t l After that, the current operation mode of the refrigerator is adjusted to the first mode; when it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is large, and the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set it to the average value of the intersection T of the suitable temperature range, and keep the refrigerator running in the current operating mode time, adjust the current operation mode of the refrigerator to the first mode; when it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is small, and the intersection T of the suitable temperature range is empty, obtain the maximum refrigerator door opening time interval Δt in the previous sampling interval max , adjust the current operating mode of the refrigerator to the fourth mode, and keep the fourth mode running Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0022] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the second mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigerator set "Specifically includes: obtaining the total running time t corresponding to the current running mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l ; where t l =t r -t d ; Get the maximum door opening time interval Δt of the refrigerator in the previous sampling intervalmax When it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is small, and the current target temperature of the refrigerator is T set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max After a certain time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the current target temperature T of the refrigerator is set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max *V fridge / V food After a certain time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the intersection T of the suitable temperature range is empty, the current speed operation mode of the refrigerator is adjusted to the fourth mode, and the fourth mode is maintained for Q*Δt max *V fridge / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0023] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the third mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigerator set "Specifically includes: obtaining the running time t corresponding to the current operating mode of the refrigerator d When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Less than the average door opening time interval The refrigerator will continue to operate in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T set is set to the average value of the intersection T of the suitable temperature range; when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval The current target temperature T set Set to the average value of the intersection T of the suitable temperature range; when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T setThe temperature is set to the average value of the intersection T of the suitable temperature ranges, and the current operating mode of the refrigerator is adjusted to the second mode.

[0024] As a further improvement of an embodiment of the present invention, the current operating mode of the refrigerator is the fourth mode; the “according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjusting the current target temperature T of the refrigerator set "Specifically includes: obtaining the running time t corresponding to the current operating mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operating mode and continues to operate max(Q*t d ,Q*Δt max ) time, the current operation mode of the refrigerator is adjusted to the third mode; when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is maintained and continued to operate max(Q*Δt max *V fridge / V food ,Q*t d *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

[0025] To achieve one of the above-mentioned purposes of the invention, the present invention further provides a refrigeration device, comprising: a memory for storing executable instructions; and a processor for implementing the steps of any of the above-mentioned refrigerator temperature adjustment methods when running the executable instructions stored in the memory.

[0026] Compared with the prior art, the embodiments of the present invention have at least one of the following beneficial effects:

[0027] The present invention adopts a refrigerator temperature adjustment method. By collecting the operating parameters of the refrigerator and calculating the average door opening time interval, the user's refrigerator usage habits can be measured more accurately. Combined with the current door opening time interval, the change in the refrigerator door opening frequency and the refrigerator usage can be better evaluated; in addition, by collecting the types, quantity and volume of items in the refrigerator, it is helpful to accurately judge the size of the refrigerator internal load. Therefore, based on the frequency of refrigerator use and the items stored in the refrigerator within the current sampling interval, at least the current target temperature of the refrigerator is adjusted to achieve precise temperature control. This temperature adjustment method is convenient for users and ensures the safety of items in the refrigerator, and also achieves high efficiency and energy saving of the refrigerator, minimizes the power consumption of the refrigerator, reduces the use cost of the refrigerator, and improves the intelligence of the refrigerator and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the steps of a refrigerator temperature regulation method according to one embodiment of the present invention.

[0029] Figure 2 It is a partial schematic diagram of step S1 of a refrigerator temperature adjustment method in one embodiment of the present invention.

[0030] Figure 3 It is a partial schematic diagram of step S2 of the refrigerator temperature adjustment method in one embodiment of the present invention.

[0031] Figure 4 It is a partial schematic diagram of step S3 of the refrigerator temperature adjustment method in one embodiment of the present invention.

[0032] Figure 5 It is a partial schematic diagram of step S4 of the refrigerator temperature adjustment method in one embodiment of the present invention.

[0033] Figure 6 It is a partial step schematic diagram of step S44 of the refrigerator temperature adjustment method in one embodiment of the present invention.

[0034] FIG. 7( a ) is a schematic diagram of some steps of a first specific example under the first implementation mode of the present invention.

[0035] FIG. 7( b ) is a schematic diagram of some steps of the second specific example under the first embodiment of the present invention.

[0036] FIG. 7( c ) is a schematic diagram of some steps of the third specific example under the first embodiment of the present invention.

[0037] FIG. 7( d ) is a schematic diagram of some steps of the fourth specific example under the first embodiment of the present invention.

[0038] FIG8( a ) is a schematic diagram of some steps of the first specific example under the second implementation mode of the present invention.

[0039] FIG8( b ) is a schematic diagram of some steps of a second specific example under the second implementation mode of the present invention.

[0040] FIG8( c ) is a schematic diagram of some steps of the third specific example under the second implementation mode of the present invention.

[0041] FIG8( d ) is a schematic diagram of some steps of a fourth specific example under the second embodiment of the present invention.

[0042] FIG8( e ) is a schematic diagram of some steps of the fifth specific example under the second embodiment of the present invention.

[0043] FIG8( f ) is a schematic diagram of some steps of a sixth specific example under the second embodiment of the present invention.

[0044] Fig. 9 It is a schematic diagram of the principle of a refrigerator temperature regulation method in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0045] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0046] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] With the continuous improvement of people's living standards, refrigeration equipment with large capacity, full functions, and advanced refrigeration and freezing has increasingly entered people's family life and has become an indispensable household appliance in people's lives. However, the temperature of most refrigeration equipment cannot be dynamically adjusted according to people's usage habits and the food in the refrigeration equipment. This results in the food in the refrigeration equipment not being able to obtain the maximum preservation or freezing effect, and the power consumption of the refrigeration equipment cannot be taken into account. Therefore, dynamically adjusting the temperature of the refrigeration equipment has a relatively important practical significance. The present invention takes the smart refrigerator as an example, and of course it is also applicable to other refrigeration equipment.

[0048] Based on this, the present invention provides a refrigerator temperature adjustment method, such as Figure 1 As shown, the specific steps include:

[0049] Step S1, obtain and calculate the average door opening time interval based on the operating parameters of the refrigerator in the previous sampling interval

[0050] Step S2: Obtain and calculate the current door opening time interval Δt based on the refrigerator door opening time in the current sampling interval now ;

[0051] Step S3, obtaining the items stored in the refrigerator within the current sampling interval;

[0052] Step S4: according to the average door opening time interval The current door opening time interval Δt now and the item conditions, at least adjust the current target temperature T of the refrigerator set .

[0053] In this way, by collecting the operating parameters of the refrigerator and calculating the average door opening time interval, the user's refrigerator usage habits can be measured more accurately. Combined with the current door opening time interval, the changes in the refrigerator door opening frequency and the refrigerator usage can be better evaluated. In addition, by collecting the types, quantity and volume of items in the refrigerator, it is helpful to accurately judge the internal load of the refrigerator. This temperature adjustment method is convenient for users and ensures the safety of items in the refrigerator. It also achieves high efficiency and energy saving of the refrigerator, minimizes the power consumption of the refrigerator, reduces the cost of using the refrigerator, and improves the intelligence of the refrigerator and the user experience.

[0054] Among them, in a preferred embodiment, the previous sampling interval can be the time interval formed by tracing back the preset interval length threshold ΔT with the current most recent refrigerator door opening time as the end time; the current sampling interval can be the time interval formed by tracing back the preset interval length threshold ΔT with the most recent refrigerator door opening time as the start time. In this way, the reasonable definition of the sampling interval is conducive to the standardization of the collected data and lays the foundation for subsequent effective temperature adjustment.

[0055] Of course, the previous sampling interval and the current sampling interval can also be reasonably set according to the actual application scenario and the accuracy of monitoring, and no specific restrictions are made here. For example, assuming that the last time the refrigerator door was opened is 12:01:00 on May 10, 2023, and the preset interval length threshold is set to 72 hours, then it should start from 12:01:00 on May 7, 2023, until the last time the refrigerator door was opened (that is, 12:01:00 on May 10, 2023). This time period is the previous sampling interval; and the current sampling interval is from 12:01:00 on May 10, 2023, until the last time the refrigerator door was opened (that is, 12:01:00 on May 13, 2023). The number of refrigerator door openings generated during this period is a valid number of door openings, and those not within this interval are invalid door openings.

[0056] In addition, the item situation includes the number of item types Q and the total volume of items V food ; The operating parameter includes at least one of the number of refrigerator door openings and the refrigerator door opening time. Specifically, in one embodiment, the operating parameter includes the number of refrigerator door openings; Based on this, if Figure 2 As shown, step S1 may specifically include the following steps:

[0057] Step S11, collecting and counting the number of times the refrigerator door is opened in the previous sampling interval to obtain the cumulative number of door openings n;

[0058] Step S12: Calculate the average door opening time interval according to the cumulative number of door opening times n and the interval length threshold ΔT The average door opening time interval is It is equal to the ratio of the interval length threshold ΔT to the cumulative number of door openings n.

[0059] In this way, by counting the cumulative number of door openings within the sampling interval, it is possible to reflect the frequency of users using the refrigerator within the most recent sampling interval, thereby avoiding misleading results caused by one or a few accidental door opening events. In addition, by calculating the average door opening interval, the sampling interval data can be effectively used for statistical analysis, dynamically monitoring the refrigerator usage status, and providing a reference for subsequent temperature adjustments, thereby improving the accuracy of temperature adjustments.

[0060] In another embodiment, the operating parameter includes the refrigerator door opening time. Based on this, the door opening time interval can be calculated according to the refrigerator door opening time. Specifically, Figure 3 As shown, step S2 may specifically include the following steps:

[0061] Step S21, respectively recording the two adjacent refrigerator door opening times closest to the current time to obtain a first door opening time t1 and a second door opening time t2;

[0062] Step S22, calculating the current door opening time interval Δt according to the first door opening time t1 and the second door opening time t2 now .

[0063] Wherein, the current door opening time interval Δt now It is equal to the difference between the second door opening time t2 and the first door opening time t1. In this way, by counting the door opening time intervals of the current refrigerator, the frequency of the current user using the refrigerator can be reflected, providing a basis for subsequent temperature adjustment.

[0064] In a preferred embodiment, the above two embodiments can be used in combination, that is, the operating parameters include the number of refrigerator door openings and the refrigerator door opening time. It can be freely selected according to the actual application scenario to achieve more accurate data. Of course, the present invention is not limited to the above three embodiments, and any embodiment that can achieve the same technical effect can be included in the protection scope of the present invention.

[0065] like Figure 4 As shown, in one implementation, step S3 may specifically include the following steps:

[0066] Step S31, detecting and recording the types and shapes of items stored in the refrigerator within the current sampling interval based on the sensor;

[0067] Step S32: Calculate and count the number of the item types Q and the total volume V of the items stored in the refrigerator according to the item types and the item shapes. food .

[0068] In this way, the storage situation of items inside the refrigerator can be continuously and accurately grasped through sensors, which can provide basic data for subsequent intelligent analysis and intelligent temperature adjustment, thereby improving the intelligent management level of the refrigerator; in addition, based on the collected storage situation of items, the user's storage habits can be analyzed, which helps to optimize the use of the refrigerator.

[0069] Among them, in a specific embodiment, the sensor may include an infrared sensor and an image sensor. The infrared sensor is a sensor that uses the physical properties of infrared rays for measurement. Any substance can radiate infrared rays as long as it has a certain temperature (higher than absolute zero). The infrared sensor can be installed on the inner tank of the refrigerator's cold storage compartment, and can quickly and accurately detect the shape of objects in the refrigerator. The image sensor is a sensor that can capture light and convert it into a digital image, such as an image recognition camera. The image recognition cameras are installed on the three inner tanks of the upper, left, and right in the refrigerator compartment, respectively, and can accurately detect the types of items stored in the refrigerator.

[0070] Specifically, through image recognition technology, the category or type of each stored item can be analyzed, such as bottled drinks, eggs, fruits, etc.; then the shape of the items stored in the refrigerator can be identified based on the infrared sensor; the identified item category and shape information can be matched with the information in the database to determine the specific type and size of each item, and then the number of item types Q and the total volume V of the items can be statistically obtained. food .

[0071] Furthermore, if Figure 5 As shown, in one implementation, step S4 may specifically include the following steps:

[0072] Step S41, obtaining the current operating mode of the refrigerator and the maximum volume V of items that can be stored fridge ;

[0073] Step S42: according to the current door opening time interval Δt now The average door opening time Determine how often the refrigerator door is opened;

[0074] Step S43, according to the total volume V of the items food With the maximum volume V fridge , determine the storage capacity of items in the refrigerator;

[0075] Step S44, adjusting at least the current target temperature T of the refrigerator according to the current operation mode of the refrigerator, the frequency of opening the refrigerator door, and the amount of items stored in the refrigerator. set .

[0076] In this way, by considering the working state of the refrigerator compressor, different temperature control strategies can be adopted according to different operating modes to make temperature control more accurate; by considering the frequency of opening the refrigerator door, the user's usage habits can be judged and a reasonable target temperature can be set; and by considering the storage capacity in the refrigerator, the load of the refrigerator can be judged to prevent temperature fluctuations caused by overfilling. Therefore, by comprehensively considering multiple factors, temperature optimization can be achieved for different usage scenarios, ensuring food safety and improving energy efficiency.

[0077] The operation mode at least carries the working state information of the refrigerator compressor. In other words, the operation mode in the refrigerator carries the specific working state of the compressor, such as whether the compressor is running or stopped. Different working states of the compressor will lead to different refrigeration effects of the refrigerator. These situations can be considered in the setting of the current target temperature of the refrigerator. Therefore, the parameters of the operation mode need to be fed back to the temperature control system in real time so as to adjust the target temperature in time.

[0078] Based on this, in one embodiment, the current operation mode of the refrigerator includes at least one of the first mode, the second mode, the third mode and the fourth mode. The first mode is used to control the compressor to work in a state of regular start or stop to keep the refrigerator at a set temperature; the second mode is used to control the compressor to work in a high-power state to quickly reduce the temperature in the refrigerator; the third mode is used to control the compressor to work in a low-power state to maintain the refrigerator at a higher temperature; the fourth working mode is used to adaptively control the start or stop of the compressor according to the ambient temperature in the refrigerator.

[0079] Specifically, the first mode can also be called the normal mode or no mode. In this mode, the refrigerator compressor starts and stops intermittently to keep the temperature in the refrigerator at a fixed target temperature value or within a fixed target temperature range. The second mode can also be called the quick cooling mode or quick freezing mode. In this mode, the compressor runs continuously so that the refrigerator refrigerator or freezer can reach the set target temperature in the shortest time, and automatically exits after maintaining the target temperature for a period of time, which helps to keep the food fresh for a long time. When the refrigerator refrigerator or freezer stores a lot of food at one time, it is recommended to use the second mode. The third mode can be called the holiday mode. In this mode, the compressor runs at a lower frequency, so that the target temperature in the refrigerator is slightly higher than the target temperature corresponding to the first mode. This mode is suitable for setting when going on vacation or leaving home for a long time. The fourth mode is also called the smart mode. In this mode, the refrigerator will automatically adjust the temperature in the refrigerator according to the ambient temperature and the number of items stored in the refrigerator. This mode has no running time limit.

[0080] The maximum volume V of the refrigerator that can store items fridge It refers to the rated volume of the refrigerator compartment, which reflects the design capacity of the refrigerator compartment itself and does not change with the amount of items stored in the refrigerator. food It refers to the total volume of items currently stored in the refrigerator compartment. It reflects the actual density of items stored in the refrigerator and can change dynamically with the amount of items stored in the refrigerator.

[0081] Understandably, when the total volume V of the item food Much smaller than the maximum volume V fridge , it means that the refrigerator space utilization rate is low, which may affect the refrigeration effect and energy consumption of food; when the total volume of the items V food Far approaching or exceeding the maximum volume V fridge , it means that the refrigerator is too full, which may easily lead to a decrease in temperature control effect.

[0082] Based on this, in one implementation manner, for the frequency of opening the refrigerator door in step S42, the present invention provides detailed steps, which may specifically include:

[0083] Step S421, determining the current door opening time interval Δt now Is it less than or equal to the average door opening time interval?

[0084] If yes, then jump to step S422A to determine whether the refrigerator door is opened frequently;

[0085] If not, jump to step S422B to determine that the refrigerator door is not opened frequently.

[0086] In this way, through comparison, it is possible to dynamically determine whether the current state is frequent door opening, avoiding misjudgment caused by only relying on a fixed time threshold, and achieving higher accuracy; moreover, the judgment logic is simple and reliable, easy to implement, and can well balance computing efficiency and judgment accuracy.

[0087] In another embodiment, for the storage amount of items in the refrigerator in step S43, the present invention provides detailed steps, which may specifically include:

[0088] Step S431, determining the total volume V of the items food Is it less than the maximum volume V fridge The size relationship of half;

[0089] If yes, then jump to step S432A to determine that the amount of items stored in the refrigerator is small;

[0090] If not, jump to step S432B to determine whether there are many items stored in the refrigerator.

[0091] In this way, the current storage situation of the refrigerator can be dynamically judged through comparison, providing a basis for subsequent dynamic temperature adjustment with higher accuracy; moreover, the judgment logic is simple and reliable, easy to implement, and can well balance computing efficiency and judgment accuracy.

[0092] Furthermore, if Figure 6 As shown, in one implementation, step S44 may specifically include the following steps:

[0093] Step S441, determining the most suitable storage temperature T for different types of items according to the types of items f and adapt to the storage temperature range;

[0094] Step S442, determining whether the number Q of the item types is 1;

[0095] If yes, then jump to step S443A, according to the current operation mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set ;

[0096] If not, jump to step S443B, and adjust at least the current target temperature T of the refrigerator according to the average value of the intersection T of the current operating mode of the refrigerator and the suitable temperature range corresponding to different types of items. set .

[0097] In this way, by identifying and intelligently adjusting the target temperature of the refrigerator according to the type and quantity of stored items, the most suitable temperature can be directly used for a single item, and the temperature can be accurately controlled; for multiple items, the average value can be calculated to achieve the effect of taking all items into consideration. Therefore, the intelligence level of the refrigerator can be improved, the preservation effect of items can be greatly improved, and the user experience effect is good.

[0098] Among them, the suitable temperature range intersection T is the intersection of the storage temperature ranges corresponding to several types of items; the suitable temperature range intersection T includes several storage temperatures; the average value of the suitable temperature range intersection T is numerically equal to the average value of all storage temperatures in the suitable temperature range intersection T rounded down.

[0099] In addition, the most suitable storage temperature T for different types of items can be determined by querying the database. f and the storage temperature range. Specifically, assuming that the storage temperature range corresponding to the i-th item in the refrigerator is T r,i , then the suitable temperature ranges of different types of items intersect The intersection T of the suitable temperature range may include storage temperature, such as T = {3° C., 4° C., 6° C.}, and the average value is 4° C. Of course, the present invention does not exclude other optimal storage temperatures and adaptive storage temperature ranges for obtaining items.

[0100] Furthermore, in order to improve the accuracy of the refrigerator temperature adjustment, the present invention can comprehensively consider the current operation mode of the refrigerator, the number of types of items stored in the refrigerator, and the amount of items stored in the refrigerator, and at least intelligently adjust the current target temperature of the refrigerator. Specifically, in the first embodiment (i.e., corresponding to step S443), the number of types of items Q is single, and the target temperature of the refrigerator can depend on the most suitable storage temperature of the items stored in the refrigerator; in the second embodiment (i.e., corresponding to step S444), the number of types of items Q is multiple, and the target temperature of the refrigerator can depend on the suitable storage temperature range corresponding to each item stored in the refrigerator.

[0101] Based on this, as shown in FIG. 7( a ), in a first specific embodiment under the first implementation mode, when the current operation mode of the refrigerator is the first mode, step S443 may specifically include the following steps:

[0102] Step S44311: when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator is set. set Set to the most suitable storage temperature T for the item f , and when the amount of items stored in the refrigerator is large, adjusting the current operating mode of the refrigerator to the second mode;

[0103] Step S44312: when it is determined that the refrigerator door is not opened frequently, obtain the actual temperature T of the current refrigerator. now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max , and the current target temperature of the refrigerator is T set Set to the most suitable storage temperature T for the item f , while at the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, the refrigerator maintains the current operation mode and continues to operate for the maximum door opening time interval Δt max Then, adjust the current operating mode of the refrigerator to the third mode.

[0104] In this way, when the refrigerator is currently operating in the intelligent mode (i.e., the first mode), the temperature fluctuation caused by frequent door opening is dealt with by quickly adjusting to the most suitable temperature and operating mode; when the door is not opened frequently, the refrigerator is adjusted to the low-power holiday mode (the third mode) according to the door opening time interval to save energy. The control logic is simple and easy to implement, which can improve the accuracy and intelligence of temperature control and realize closed-loop temperature control.

[0105] The maximum door opening time interval is the maximum value of all the time intervals between two adjacent refrigerator door openings within the preset interval length threshold ΔT. Assuming that there are n-1 adjacent refrigerator door opening time intervals collected within this interval length, that is, Δt max =max{Δt1,Δt2,...,Δt n-1 The current target temperature T set It can be a temperature value that the user wants to set through the refrigerator panel or program during the specific operation of the refrigerator, which represents the temperature that the user expects the inside of the refrigerator to reach. This temperature can be set manually by the user or automatically by the program, and there is no specific limitation on this.

[0106] In addition, by continuing to maintain the current operating mode for a period of time, it can ensure that the items in the refrigerator have been cooled to the current target temperature and achieve a sufficient refrigeration effect. At the same time, it can also avoid adjusting the operating mode too quickly, causing the temperature in the refrigerator to fluctuate and affect the shelf life of the items in the refrigerator.

[0107] As shown in FIG. 7( b ), in the second specific embodiment under the first embodiment, when the current operation mode of the refrigerator is the second mode, step S443 may specifically include the following steps:

[0108] Step S44321, obtaining the total operating time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l; where t l =t r -t d ;

[0109] Step S44322: when it is determined that the refrigerator door is frequently opened and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator is set. set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l Then, the current operation mode of the refrigerator is adjusted to the first mode;

[0110] Step S44323: when it is determined that the refrigerator door is frequently opened and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is set. set Set to the most suitable storage temperature T for the item f , and keep the refrigerator running in the current mode Then, the current operation mode of the refrigerator is adjusted to the first mode;

[0111] Step S44324: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, obtain the maximum refrigerator door opening time interval Δt in the previous sampling interval. max , set the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate for the maximum door opening time interval Δt max Then, the current operation mode of the refrigerator is adjusted to the third mode;

[0112] Step S44325: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, obtain the maximum refrigerator door opening time interval Δt in the previous sampling interval. max , set the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate V fridge *Δt max / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0113] In this way, when the current operating mode of the refrigerator is quick freezing or quick cooling mode (i.e., the second mode), by monitoring the operating time of the current refrigerator mode, the target temperature and subsequent operating modes are adjusted in time to take into account the freshness of the items and the power consumption of the refrigerator, thereby reducing the use cost of the refrigerator.

[0114] Among them, the total running time t r The time required for the refrigerator to complete the operation from the time when the current operation mode is set to the time when the operation ends. Different operation modes can have different total operation times, and the actual use of the refrigerator and the energy consumption can be balanced. The running time t d The remaining running time t can be calculated by starting from the time when the current operating mode setting is completed to the time when the refrigerator has been running at the current moment; l , the dynamic adjustment (or mode switching) of the operating mode can be carried out more smoothly, and different reasonable operating times can be given for different conditions, making the control more intelligent.

[0115] Preferably, the average interval time is selected for the running time in step S44323 and the remaining operating time t of the current operating mode l The larger value between , because when there are more items stored in the refrigerator, the energy consumption should be considered under the premise of ensuring the freshness of the items, so the running time in the current mode should be guaranteed as much as possible.

[0116] As shown in FIG. 7( c ), in the third specific embodiment under the first embodiment, when the current operation mode of the refrigerator is the third mode, step S443 may specifically include the following steps:

[0117] Step S44331, obtaining the running time t corresponding to the current running mode of the refrigerator d ;

[0118] Step S44332: when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Less than the average door opening time interval Keep the refrigerator running in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T set Set to the most suitable storage temperature T f ;

[0119] Step S44333: when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval Or when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is set to set Set to the most suitable storage temperature T f and adjust the current operating mode of the refrigerator to the first mode.

[0120] In this way, when the current operating mode of the refrigerator is holiday mode (i.e., the third mode), by obtaining the running time of the current mode and combining the current frequency of opening the refrigerator door and the amount of items stored, the target temperature and subsequent operating modes are adjusted in time, thereby reducing the power consumption of the refrigerator while ensuring the freshness of the items as much as possible, thereby improving the user experience.

[0121] As shown in FIG. 7( d ), in the fourth specific embodiment under the first embodiment, when the current operation mode of the refrigerator is the fourth mode, step S443 may specifically include the following steps:

[0122] Step S44341, obtaining the running time t corresponding to the current running mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ;

[0123] Step S44342: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operation mode and continues to operate for max(t d ,Δt max ) time, adjusting the current operating mode of the refrigerator to the third mode;

[0124] Step S44343: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the refrigerator is kept in the current operation mode and continues to operate for max(Δt max *V fridge / V food ,t fd *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

[0125] In this way, when the current operating mode of the refrigerator is the smart mode (i.e., the fourth mode), by obtaining the running time of the current mode and the maximum door opening interval time interval, combined with the current frequency of door opening and the amount of items stored in the refrigerator, the target temperature and subsequent operating modes are adjusted in time, thereby reducing the power consumption of the refrigerator while ensuring the freshness of the items as much as possible, reducing the cost of use, and improving the degree of intelligence.

[0126] Among them, for the time to keep the current operating mode of the refrigerator running in step S44342 and step S44343, the purpose of selecting a larger value is to intelligently select the operating time according to the storage capacity of items when the user does not use the refrigerator frequently, so as to ensure the freshness of the items to the greatest extent, and then adjust to the energy-saving mode (i.e., the third mode), which is to further consider energy saving.

[0127] As shown in FIG. 8( a ), in the first specific example under the second embodiment of the present invention, when the current operating mode of the refrigerator is the first mode, step S444 may specifically include the following steps:

[0128] Step S44411: when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set The temperature is set to a temperature corresponding to the current operation mode of the refrigerator, and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to a second mode;

[0129] Step S44412: when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set The temperature is set to be the average value of the intersection T of the suitable temperature range, and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to the second mode at the same time;

[0130] Step S44413, when it is determined that the refrigerator door is opened frequently and the intersection T of the suitable temperature range is empty, the current operating mode of the refrigerator is adjusted to the fourth mode.

[0131] In this way, according to the diversity of the number and types of items in the refrigerator, the target temperature is set at the intersection of the temperature ranges that different types of items can adapt to, taking into account the temperature requirements of different types of items and achieving an overall optimization effect; in addition, when the refrigerator is used frequently, components such as the compressor can maintain a normal working state and will not be idle for a long time. After being adjusted to a suitable temperature, continuous use can keep the temperature stable without frequent and drastic temperature adjustments. This method of temperature regulation can significantly improve the intelligence and accuracy of temperature control.

[0132] As shown in FIG. 8( b ), in a second specific example of the second embodiment of the present invention, when the current operating mode of the refrigerator is the first mode, step S444 may specifically include the following steps:

[0133] Step S44421, obtain the actual temperature T of the current refrigerator now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ;

[0134] Step S44422: When it is determined that the refrigerator door is not opened frequently, the current target temperature T of the refrigerator is set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set the temperature corresponding to the first mode and set the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode;

[0135] Step S44423: when it is determined that the refrigerator door is not opened frequently, the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and set to the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode;

[0136] Step S44424: when it is determined that the refrigerator door is not opened frequently and the intersection T of the suitable temperature range is empty, the current operation mode of the refrigerator is adjusted to the fourth mode, and the fourth mode is maintained to continue to operate for Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0137] In this way, according to the diversity of the number of items in the refrigerator, the target temperature is set at the intersection of the temperature ranges that different types of items can adapt to, taking into account the temperature requirements of different types of items and achieving an overall optimization effect; in addition, if the refrigerator is not used frequently, the temperature and mode can be set to a mode in which the compressor works intermittently to reduce power consumption and save costs.

[0138] Among them, the actual temperature of the current refrigerator is T now The current target temperature T of the refrigerator set It is relative, and is the actual temperature inside the refrigerator, not the ideal temperature setting. It can be collected through the built-in temperature sensor of the refrigerator, which can reflect the current actual refrigeration situation in the refrigerator. The actual temperature will fluctuate with the operation of the refrigerator, and it is a dynamically changing temperature value. By monitoring the actual temperature in the refrigerator in real time, the closed-loop temperature control and intelligent optimization of the refrigerator can be achieved.

[0139] In addition, when the refrigerator is not used frequently (i.e., the refrigerator door is not opened frequently), the target temperature of the refrigerator can be set to the temperature corresponding to the normal mode (i.e., the first mode). The target temperature is set within the optimal fresh-keeping temperature range for a variety of items, such as about 0-5°C. At the same time, the temperature should not be too low, and can be set slightly higher than the optimal fresh-keeping temperature, such as about 5°C, so that both the fresh-keeping effect of the items and the energy-saving effect of the refrigerator are taken into account. However, in order to ensure the freshness of the items as much as possible, the refrigerator is allowed to continue to operate in the normal mode for a long time before being adjusted to the holiday mode (i.e., the third mode).

[0140] As shown in FIG. 8( c ), in the third specific example under the second embodiment of the present invention, when the current operating mode of the refrigerator is the second mode, step S444 may specifically include the following steps:

[0141] Step S44431, obtaining the total operating time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining running time t of the current running mode l ; where t l =t r -t d ;

[0142] Step S44432: when it is determined that the refrigerator door is opened frequently, the current target temperature T of the refrigerator set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l Then, the current operation mode of the refrigerator is adjusted to the first mode;

[0143] Step S44433: when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and keep the refrigerator in the current operation mode and continue to run for the remaining operation time t l Then, the current operation mode of the refrigerator is adjusted to the first mode;

[0144] Step S44434: when it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is large, and the current target temperature T of the refrigerator is set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set it to the average value of the intersection T of the suitable temperature range, and keep the refrigerator running in the current operating mode After the time has passed, the current operating mode of the refrigerator is adjusted to the first mode;

[0145] Step S44435: when it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is small, and the intersection T of the suitable temperature range is empty, the maximum refrigerator door opening time interval Δt in the previous sampling interval is obtained. max , adjust the current operating mode of the refrigerator to the fourth mode, and keep the fourth mode running Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0146] In this way, according to different situations such as the frequency of door opening, the amount of storage in the refrigerator and the operating mode, the appropriate operating mode and target temperature setting can be selected to ensure fast and intelligent operation while taking energy saving into account. This can achieve highly targeted mode optimization control and improve the level of intelligence. In addition, by calculating the remaining operating time, it can avoid adjusting the operating mode too late or too early, and the control is more stable and reliable.

[0147] Among them, the use of the average value of the intersection of the temperature range can meet the storage needs of different types of items. When the storage capacity is small, it can be timely adjusted to the normal mode (i.e., the first mode) or energy-saving mode (i.e., the third mode) with lower power than the quick freezing mode or the quick cooling mode (i.e., the second mode) to reduce energy consumption. When the intersection range is empty, it enters the intelligent mode for further analysis and judgment to improve the intelligence of the adjustment process.

[0148] In addition, by recording the interval between door openings, the user's refrigerator usage habits can be better predicted, making it easier to adjust to a reasonable holiday mode in a timely manner. The entire process control logic is clean, and the calculation process is simple, efficient, and easy to implement, which enables effective control and energy-saving optimization of the quick cooling mode or quick freezing mode (i.e., the second mode), and can significantly reduce energy consumption caused by excessive use of the quick freezing mode or the quick cooling mode.

[0149] As shown in FIG. 8( d ), in the fourth specific embodiment under the second embodiment of the present invention, when the current operating mode of the refrigerator is the second mode, step S444 may specifically include the following steps:

[0150] Step S44441, obtaining the total operating time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l ; where t l =t r -t d ;

[0151] Step S44442, obtaining the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ;

[0152] Step S44443: when it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is small, and the current target temperature T of the refrigerator is set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode;

[0153] Step S44444: when it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the current target temperature T of the refrigerator is set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max *V fridge / V food After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode;

[0154] Step S44445: when it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the intersection T of the suitable temperature range is empty, the refrigerator is adjusted from the current speed operation mode to the fourth mode, and the fourth mode is maintained to continue to operate Q*Δt max *V fridge / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

[0155] In this way, the refrigerator can be intelligently judged for infrequent use in the quick cooling or quick freezing mode, and the operation mode can be reasonably adjusted. When the storage capacity is small, it can be switched to the low power mode in time to avoid resource waste. After a period of reasonable operation in the corresponding operation mode, it can ensure that each operation mode can play its due function. The overall process cleaning is reasonable, which can greatly reduce the energy consumption in the state of infrequent use.

[0156] As shown in FIG. 8( e ), in the fifth specific embodiment under the second embodiment of the present invention, when the current operating mode of the refrigerator is the third mode, step S444 may specifically include the following steps:

[0157] Step S44451, obtaining the running time t corresponding to the current operating mode of the refrigerator d ;

[0158] Step S44452: when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Less than the average door opening time interval The refrigerator will continue to operate in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T xet Set to the average value of the intersection T of the suitable temperature range;

[0159] Step S44453, when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval The current target temperature T set Set to the average value of the intersection T of the suitable temperature range;

[0160] Step S44454: when it is determined that the refrigerator door is frequently opened and the amount of items stored in the refrigerator is large, the current target temperature T set The temperature is set to the average value of the intersection T of the suitable temperature ranges, and the current operating mode of the refrigerator is adjusted to the second mode.

[0161] In this way, by automatically selecting the appropriate efficient operation mode and adjusting the target temperature based on different situations such as how frequently the refrigerator door is opened and the amount of items stored in the refrigerator, no human intervention is required. The algorithm control is simple, efficient and easy to implement, avoiding energy waste while meeting the needs of freshness preservation.

[0162] As shown in FIG. 8( f ), in the sixth specific embodiment under the second embodiment of the present invention, when the current operating mode of the refrigerator is the fourth mode, step S444 may specifically include the following steps:

[0163] Step S44461, obtaining the running time t corresponding to the current operating mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ;

[0164] Step S44462: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operation mode and continues to operate max(Q*t d ,Q*Δt max ) time, adjusting the current operating mode of the refrigerator to the third mode;

[0165] Step S44463: when it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the refrigerator is kept in the current operation mode and continues to operate max(Q*Δt max *V fridge / V food ,Q*t d *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

[0166] In this way, according to the specific situation, it automatically adjusts to the corresponding operating mode and selects the larger of the two time values ​​as the continuous operating time, so as to achieve smooth switching of the operating mode and ensure that the mode plays its corresponding function with high intelligence and accuracy and good user experience.

[0167] The above-mentioned various implementation modes, embodiments or specific examples provided by the present invention can be combined with each other to finally form multiple better implementation modes.

[0168] For example, Fig. 9 The following is a block diagram of a refrigerator temperature adjustment method according to a preferred embodiment. Fig. 9 , summarizing the processing process of this preferred embodiment.

[0169] First, the image camera, infrared sensor and refrigerator main control board built into the smart refrigerator collect data. Specifically, the refrigerator main control board records the number of refrigerator door openings within a preset interval length threshold ΔT, the running time t of the refrigerator's current operating mode, and the number of refrigerator door openings within a preset interval length threshold ΔT. d Or the remaining running time t l The protruding camera can identify the types of items in the refrigerator; the infrared sensor can detect the volume of items in the refrigerator. Preferably, the collected data can be uploaded to a cloud server to facilitate subsequent data storage and data processing.

[0170] Secondly, the backend server calculates the current refrigerator door opening time interval Δt according to the cumulative number of refrigerator door opening times n in the previous sampling interval (ie, the preset interval length threshold ΔT) now And the average door opening time The storage status (i.e. storage capacity) of the items in the refrigerator can be determined based on the total volume of the items in the refrigerator and the maximum volume of the items that the refrigerator can store. In addition, the most suitable storage temperature and storage temperature range for different items can be queried through a preset database based on the type of items.

[0171] Finally, according to the relationship between the average door opening time interval and the current door opening time interval, the total volume of items in the refrigerator and the number of item types V food And the temperature T that the item is most suitable for storage f Or the items are adapted to the storage temperature range T, intelligently adjust the current target temperature and current operating mode of the refrigerator, and send the adjustment information (i.e. target temperature and operating mode) to the refrigerator main control board to achieve intelligent temperature control and energy-saving management.

[0172] For ease of understanding, let's take the refrigerator compartment of a smart refrigerator as an example. Assume that within three days before the refrigerator compartment door was opened, there were 11 door openings (i.e., the cumulative number of refrigerator door openings n), and assume that the total time interval between door openings is 60 hours (i.e., the preset interval length threshold ΔT, which can be set by yourself), then the average door opening time interval is The maximum door opening time interval Δt is 6 hours. max is 12 hours; if the current door opening time difference Δt now For 10 hours, the maximum volume V of the refrigerator compartment fridge is 300L, the current target temperature of the refrigerator is T set is 3℃; currently we detect the total volume V of the items in the refrigerator through the sensor food is 200L, the number of items recognized by the image recognition camera is Q, and the intersection T of the suitable temperature ranges for storing the 5 items is {1, 2, 3, 4}. The current refrigerator operation mode is the rapid cooling mode (total operation time t r 5 hours) and the running time t d is 3 hours, and the remaining running time is t l According to the above scheme, the quick cooling mode should be continued for 2 hours, and then the current operating mode of the refrigerator should be adjusted to the smart mode, and the smart mode should continue to maintain Q*Δt max *V fridge / V food =5 (number of types of items)*12 (maximum door opening time interval)*1.5 (ratio of the volume of items stored in the refrigerator to the maximum volume of the refrigerator) = 90 hours later, the refrigerator operation mode is changed from smart mode to holiday mode. Similarly, other situations can be verified, which will not be discussed in detail here.

[0173] The present invention also provides a refrigeration device, comprising: a memory for storing executable instructions; and a processor for implementing any of the steps of the above-mentioned refrigerator temperature adjustment method when running the executable instructions stored in the memory.

[0174] In summary, the present invention can more accurately measure the user's refrigerator usage habits by collecting the operating parameters of the refrigerator to calculate the average door opening time interval. Combined with the current door opening time interval, it can better evaluate the changes in the refrigerator door opening frequency and the use of the refrigerator; in addition, by collecting the types, quantity and volume of items in the refrigerator, it is helpful to accurately judge the size of the internal load of the refrigerator. Therefore, the refrigerator temperature adjustment method provided by the present invention is a multi-dimensional adjustment method, which can more accurately and objectively measure the actual use of the refrigerator. Combined with the storage volume of items in the refrigerator and the number of item types, it can comprehensively analyze and quantify the items in the refrigerator, and play a guiding role in dynamically adjusting the refrigerator mode temperature. It has a high degree of intelligence and good user experience.

[0175] In addition, the present invention can not only maintain the refrigeration effect of the refrigerator to the greatest extent when the user frequently opens the door and there is a lot of food in the refrigerator, but also save the power consumption of the refrigerator when the user does not open the door for a long time and there is little food in the refrigerator, thereby reducing unnecessary expenses for users.

[0176] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0177] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator temperature adjustment method, characterized in that: include: Obtain and calculate the average door opening time interval based on the operating parameters of the refrigerator in the previous sampling interval Obtain and calculate the current door opening time interval Δt based on the refrigerator door opening time in the current sampling interval now ; Get the items stored in the refrigerator during the current sampling interval; the item status includes the number of item types Q and the total volume V of the items food ; According to the average door opening time interval The current door opening time interval Δt now and the item conditions, at least adjust the current target temperature T of the refrigerator set .

2. The refrigerator temperature adjustment method according to claim 1, characterized in that: The previous sampling interval is: starting from the most recent time the refrigerator door was opened and tracing back to a time interval formed by a preset interval length threshold ΔT; the current sampling interval is: starting from the most recent time the refrigerator door was opened and tracing back to a time interval formed by a preset interval length threshold ΔT; the operating parameters include at least one of the number of refrigerator door openings and the refrigerator door opening time.

3. The refrigerator temperature adjustment method according to claim 1, characterized in that: The "obtaining and calculating the average door opening time interval based on the operating parameters of the refrigerator in the previous sampling interval" Specifically include: Collect and count the number of refrigerator door openings in the previous sampling interval to obtain the cumulative number of door openings n; The average door opening time interval is calculated based on the cumulative number of door opening times n and the preset interval length threshold ΔT. The average door opening time interval is It is equal to the ratio of the preset interval length threshold ΔT to the cumulative number of door opening times n.

4. The refrigerator temperature adjustment method according to claim 1, characterized in that: The "obtaining and calculating the current door opening time interval Δt according to the refrigerator door opening time in the current sampling interval now Specifically include: Record the two consecutive refrigerator door opening times closest to the current time to obtain the first door opening time t1 and the second door opening time t2; The current door opening time interval Δt is calculated based on the first door opening time t1 and the second door opening time t2. now ; Wherein, the current door opening time interval Δt now It is equal to the difference between the second door opening time t2 and the first door opening time t1.

5. The refrigerator temperature adjustment method according to claim 1, characterized in that: The "obtaining the situation of items stored in the refrigerator within the current sampling interval" specifically includes: Based on the sensor, the types and shapes of items stored in the refrigerator within the current sampling interval are detected and recorded; According to the types of items and the shapes of the items, calculate and count the number of the types of items Q and the total volume of the items V stored in the refrigerator food .

6. The refrigerator temperature adjustment method according to claim 1, characterized in that: The "according to the average door opening time interval The current door opening time interval Δt now and the item conditions, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the current operating mode of the refrigerator and the maximum volume V that can store items fridge ; Wherein, the operating mode carries at least the working status information of the refrigerator compressor; According to the current door opening time interval Δt now The average door opening time Determine how often the refrigerator door is opened; According to the total volume V of the item food With the maximum volume V fridge , determine the storage capacity of items in the refrigerator; According to the current operation mode of the refrigerator, the frequency of opening the refrigerator door and the amount of items stored in the refrigerator, at least the current target temperature T of the refrigerator is adjusted. set .

7. The refrigerator temperature adjustment method according to claim 6, characterized in that: The current operating mode of the refrigerator includes at least one of a first mode, a second mode, a third mode and a fourth mode; wherein the first mode is used to control the compressor to operate in a periodic start or stop state to keep the refrigerator at a set temperature; the second mode is used to control the compressor to operate in a high-power state to quickly reduce the temperature inside the refrigerator; the third mode is used to control the compressor to operate in a low-power state to maintain the refrigerator at a higher temperature; the fourth operating mode is used to adaptively control the start or stop of the compressor according to the ambient temperature inside the refrigerator.

8. The refrigerator temperature adjustment method according to claim 6, characterized in that: The "according to the current door opening time interval Δt now The average door opening time Determine how often the refrigerator door is opened” specifically includes: Determine the current door opening time interval Δt now Is it less than or equal to the average door opening time interval? If so, it is determined that the refrigerator door is opened frequently; If not, it is determined that the refrigerator door is not opened frequently; The "according to the total volume V of the item food With the maximum volume V fridge , determine the storage capacity of items in the refrigerator" specifically includes: Determine the total volume V of the item food Is it less than the maximum volume V fridge The size relationship of half; If so, it is determined that the amount of items stored in the refrigerator is small; If not, it is determined that there are many items stored in the refrigerator.

9. The refrigerator temperature adjustment method according to claim 6, characterized in that: The "at least adjusting the current target temperature T of the refrigerator according to the current operation mode of the refrigerator, the frequency of opening the refrigerator door and the amount of items stored in the refrigerator" set Specifically include: According to the types of items, determine the most suitable storage temperature T for different types of items f and adapt to the storage temperature range; Determine whether the quantity Q of the item type is 1; If so, according to the current operation mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set ; If not, then at least adjust the current target temperature T of the refrigerator according to the average value of the intersection T of the current operating mode of the refrigerator and the suitable temperature range corresponding to different types of items. set ; Among them, the suitable temperature range intersection T is the intersection of the storage temperature ranges corresponding to several types of items; the suitable temperature range intersection T includes several storage temperatures; the average value of the suitable temperature range intersection T is numerically equal to the average value of all storage temperatures in the suitable temperature range intersection T rounded down.

10. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the first mode; the "according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set Specifically include: When it is determined that the refrigerator door is opened frequently, the current target temperature T set Set to the most suitable storage temperature T for the item f , and when the amount of items stored in the refrigerator is large, adjusting the current operating mode of the refrigerator to the second mode; When it is determined that the refrigerator door is not opened frequently, the actual temperature T of the current refrigerator is obtained. now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max , and the current target temperature of the refrigerator is T set Set to the most suitable storage temperature T for the item f , while at the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, the refrigerator maintains the current operation mode and continues to operate for the maximum door opening time interval Δt max Then, adjust the current operating mode of the refrigerator to the third mode.

11. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the second mode; the "according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set Specifically include: Get the total running time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l ; where t l =t r -t d ; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator is set. set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l Then, the current operation mode of the refrigerator is adjusted to the first mode; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is set. set Set to the most suitable storage temperature T for the item f , and keep the refrigerator running in the current mode Then, the current operation mode of the refrigerator is adjusted to the first mode; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the maximum refrigerator door opening time interval Δt in the previous sampling interval is obtained. max , set the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate for the maximum door opening time interval Δt max Then, the current operation mode of the refrigerator is adjusted to the third mode; When it is determined that the refrigerator door is not opened frequently, and when the amount of items stored in the refrigerator is large, the maximum refrigerator door opening time interval Δt in the previous sampling interval is obtained. max , set the current target temperature of the refrigerator T set Set to the most suitable storage temperature T for the item f , and keep the refrigerator in the current operating mode and continue to run for the remaining running time t l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate V fridge *Δt max / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

12. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the third mode; the "according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set Specifically include: Get the running time t corresponding to the current operation mode of the refrigerator d ; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Less than the average door opening time interval Keep the refrigerator running in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T set Set to the most suitable storage temperature T f ; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval Or when it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator is set to set Set to the most suitable storage temperature T f and adjust the current operating mode of the refrigerator to the first mode.

13. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the fourth mode; the "according to the current operating mode of the refrigerator and the most suitable storage temperature T corresponding to the item f , at least adjust the refrigerator's current target temperature T set Specifically include: Get the running time t corresponding to the current operation mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operation mode and continues to operate for max(t d ,Δt max ) time, adjusting the current operating mode of the refrigerator to the third mode; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the refrigerator is kept in the current operation mode and continues to operate for max(Δt max *V fridge / V food , t d *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

14. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the first mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: When it is determined that the refrigerator door is opened frequently, the current target temperature of the refrigerator is T set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set The temperature is set to a temperature corresponding to the current operation mode of the refrigerator, and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to a second mode; When it is determined that the refrigerator door is opened frequently, the current target temperature of the refrigerator is T set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set The temperature is set to be the average value of the intersection T of the suitable temperature range, and when the amount of items stored in the refrigerator is large, the current operation mode of the refrigerator is adjusted to the second mode at the same time; When it is determined that the refrigerator door is opened frequently and the intersection T of the suitable temperature ranges is empty, the current operation mode of the refrigerator is adjusted to the fourth mode.

15. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the first mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the actual temperature T of the current refrigerator now and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ; When it is determined that the refrigerator door is not opened frequently, the current target temperature of the refrigerator is T set When the temperature is within the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set the temperature corresponding to the first mode and set the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode; When it is determined that the refrigerator door is not opened frequently, the current target temperature of the refrigerator is T set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and set to the actual temperature T now Equal to the current target temperature T of the refrigerator set After that, keep the refrigerator in the current operating mode and continue to run Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode; When it is determined that the refrigerator door is not opened frequently and the intersection T of the suitable temperature range is empty, the current operation mode of the refrigerator is adjusted to the fourth mode, and the fourth mode is maintained to continue to operate Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

16. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the second mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the total running time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining running time t of the current running mode l ; where t l =t r -t d ; When it is determined that the refrigerator door is opened frequently, the current target temperature of the refrigerator is T set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l Then, the current operation mode of the refrigerator is adjusted to the first mode; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set to the average value of the intersection T of the suitable temperature range, and keep the refrigerator in the current operation mode and continue to run for the remaining operation time t l Then, the current operation mode of the refrigerator is adjusted to the first mode; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T of the refrigerator set If it does not belong to the intersection T of the suitable temperature range, the current target temperature T of the refrigerator is set Set it to the average value of the intersection T of the suitable temperature range, and keep the refrigerator running in the current operating mode After the time has passed, the current operating mode of the refrigerator is adjusted to the first mode; When it is determined that the refrigerator door is opened frequently, the amount of items stored in the refrigerator is small, and the intersection T of the suitable temperature range is empty, the maximum refrigerator door opening time interval Δt in the previous sampling interval is obtained. max , adjust the current operating mode of the refrigerator to the fourth mode, and keep the fourth mode running Q*Δt max After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

17. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the second mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the total running time t corresponding to the current operating mode of the refrigerator r and the elapsed time t d , calculate the remaining operating time t of the refrigerator in the current operating mode l ; where t l =t r -t d ; Get the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the current target temperature T of the refrigerator set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode; When it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the current target temperature T of the refrigerator is set When the temperature falls within the intersection T of the suitable temperature range, the refrigerator is kept in the current operating mode and continues to operate for the remaining operating time t. l After that, the current operation mode of the refrigerator is adjusted to the fourth mode, and then the fourth mode is maintained to continue to operate Q*Δt max *V fridge / V food After the time has passed, the current operating mode of the refrigerator is adjusted to the third mode; When it is determined that the refrigerator door is not opened frequently, the amount of items stored in the refrigerator is large, and the intersection T of the suitable temperature range is empty, the current speed operation mode of the refrigerator is adjusted to the fourth mode, and the fourth mode is maintained to continue to operate Q*Δt max *V fridge / V food After a certain time, the current operating mode of the refrigerator is adjusted to the third mode.

18. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the third mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature ranges corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the running time t corresponding to the current operation mode of the refrigerator d ; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Less than the average door opening time interval The refrigerator will continue to operate in the current mode. After a certain time, the refrigerator is adjusted to the first mode and the current target temperature T set Set to the average value of the intersection T of the suitable temperature range; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is small, the running time t d Greater than or equal to the average door opening time interval The current target temperature T set Set to the average value of the intersection T of the suitable temperature range; When it is determined that the refrigerator door is opened frequently and the amount of items stored in the refrigerator is large, the current target temperature T set The temperature is set to the average value of the intersection T of the suitable temperature ranges, and the current operating mode of the refrigerator is adjusted to the second mode.

19. The refrigerator temperature adjustment method according to claim 9, characterized in that: The current operating mode of the refrigerator is the fourth mode; the "according to the current operating mode of the refrigerator and the average value of the intersection T of the suitable temperature range corresponding to different types of items, at least adjust the current target temperature T of the refrigerator set Specifically include: Get the running time t corresponding to the current operation mode of the refrigerator d and the maximum door opening time interval Δt of the refrigerator in the previous sampling interval max ; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is small, the refrigerator is kept in the current operation mode and continues to operate max(Q*t d , Q*Δt max ) time, adjusting the current operating mode of the refrigerator to the third mode; When it is determined that the refrigerator door is not opened frequently and the amount of items stored in the refrigerator is large, the refrigerator is kept in the current operation mode and continues to operate max(Q*Δt max *V fridge / V food , Q*t d *V fridge / V food ) time, adjust the current operating mode of the refrigerator to the third mode.

20. A refrigeration device, characterized in that: include: A memory for storing executable instructions; The processor is used to implement the steps of the refrigerator temperature regulation method according to any one of claims 1 to 19 when running the executable instructions stored in the memory.

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