Automatic adjusting method and equipment for low-power-consumption intelligent refrigeration and preservation equipment and storage medium

Abstract

The invention discloses an automatic adjusting method for low-power-consumption intelligent refrigeration and fresh-keeping equipment. The method comprises the steps that the refrigeration temperature of a refrigerated cabinet and the storage duration of a plurality of objects in the refrigerated cabinet are obtained; calculating the remaining shelf life of each article according to the refrigeration temperature and the storage duration of each article; if the remaining shelf life of at least one article is smaller than a set threshold value, the standard refrigeration temperature range of all the articles is obtained, and the temperature adjustable range of the refrigerated cabinet is determined according to the standard refrigeration temperature range of all the articles. More accurate temperature control is realized, and the shelf life of various foods is prolonged; when some articles expire and are removed, the storage conditions and requirements in the refrigerated cabinet may change, the target refrigeration temperature is recalculated to better adapt to a new storage environment, and the refrigeration effect and energy consumption management are optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerator adjustment, and in particular to an automatic adjustment method, device and storage medium for low-power intelligent refrigeration and fresh-keeping equipment. Background Art

[0002] At present, household and commercial refrigerators are widely used to store various foods to extend their shelf life. However, existing refrigerators usually perform refrigeration according to a preset fixed temperature. This fixed temperature refrigeration method cannot be optimized according to the characteristics and shelf life requirements of different foods. As a result, some foods may deteriorate prematurely or consume unnecessary energy due to temperature inappropriateness, thus affecting the storage effect of food and the user experience.

[0003] In order to solve the above problems, some refrigerators have introduced temperature sensors and Internet of Things technology. By real-time monitoring of the temperature inside the refrigerator and the ambient temperature, combined with a preset control algorithm, the temperature of the refrigerator is dynamically adjusted, which can optimize the refrigeration effect to a certain extent and extend the shelf life of food. However, the above methods often only focus on the regulation of the overall temperature inside the refrigerator. When there are differences in the storage requirements of various foods, a single temperature regulation is difficult to take into account the optimal storage conditions of all foods, which may cause some foods to deteriorate due to poor storage temperature. Summary of the invention

[0004] The present invention provides an automatic adjustment method, device and storage medium of a low-power intelligent refrigeration and fresh-keeping device, which are used to realize customized fresh-keeping of different types of items and extend their shelf life when there are differences in storage requirements of multiple items.

[0005] The present invention provides an automatic adjustment method for low-power intelligent refrigeration and fresh-keeping equipment, the method comprising: obtaining a refrigeration temperature of a refrigerator and a storage time of a plurality of articles in the refrigerator; calculating the remaining shelf life of each of the articles according to the refrigeration temperature and the storage time of each of the articles; if there is at least one of the articles whose remaining shelf life is less than a set threshold, obtaining a standard refrigeration temperature range of each of the articles, and determining an adjustable temperature range of the refrigerator according to the standard refrigeration temperature range of each of the articles; obtaining an ambient temperature of an environment in which the refrigerator is located and an average switching time of each time the refrigerator is switched on and off, and determining a temperature loss coefficient of each time the refrigerator is switched on and off according to the ambient temperature and the average switching time; determining a target refrigeration temperature of the refrigerator within the adjustable range according to the temperature loss coefficient, and adjusting the refrigeration temperature of the refrigerator to the target refrigeration temperature.

[0006] By adopting the above technical solution, the storage time and refrigeration temperature of multiple items in the refrigerator are obtained to accurately calculate the remaining shelf life of each item. When it is detected that the remaining shelf life of any item is less than the set threshold, the standard refrigeration temperature range of each item is obtained, and the adjustable temperature range of the refrigerator is determined accordingly. This process allows the temperature adjustment of the refrigerator to be more targeted, thereby meeting the customized preservation needs of different items. By obtaining the ambient temperature of the environment in which the refrigerator is located and the average switching time at each switch, the temperature loss coefficient of the refrigerator is calculated each time it is switched on and off. Finally, according to the temperature loss coefficient, the target refrigeration temperature of the refrigerator is determined within a predetermined adjustable range, and the temperature of the refrigerator is adjusted to this target temperature. The refrigerator can achieve more precise temperature control according to the characteristics and shelf life requirements of different foods, thereby extending the shelf life of various types of food.

[0007] Preferably, the refrigeration temperature and the storage time of each of the items are substituted into a preset formula to calculate the remaining shelf life of each of the items; wherein, the preset formula is: Tr=T0×ek(T-Tref)-ts; wherein, Tr is the remaining shelf life, T0 is the shelf life of each of the items at the reference temperature, k is the adjustment coefficient, T is the refrigeration temperature, Tref is the reference temperature, and ts is the storage time of each of the items.

[0008] Preferably, determining the adjustable temperature range of the refrigerator according to the standard refrigeration temperature range of each of the items includes: determining the intersection of the standard refrigeration temperature ranges of each of the items as the temperature adjustment range of the refrigerator, wherein the temperature adjustment range includes a lower temperature limit; if the refrigeration temperature of the refrigerator is within the temperature adjustment range, then the temperature interval between the refrigeration temperature and the lower temperature limit is used as the adjustable temperature range of the refrigerator.

[0009] Preferably, after calculating the remaining shelf life of each of the items based on the refrigeration temperature and the storage time of each of the items, the method further includes: if the remaining shelf life of the items is greater than a set threshold, obtaining a standard refrigeration temperature range for each of the items, and determining an adjustable temperature range of the refrigerator based on the standard refrigeration temperature range for each of the items; obtaining a temperature energy consumption curve of the refrigerator; determining a target refrigeration temperature of the refrigerator within the adjustable temperature range based on the temperature energy consumption curve, and adjusting the refrigeration temperature of the refrigerator to the target refrigeration temperature.

[0010] Preferably, determining the temperature loss coefficient each time the refrigerator is switched on and off according to the ambient temperature and the average switching time comprises: substituting the ambient temperature and the average switching time into a temperature loss formula to calculate the temperature loss coefficient each time the refrigerator is switched on and off; wherein,

[0011] The temperature loss coefficient formula is: wherein ΔT is the temperature loss coefficient of the refrigerator each time it is switched on and off, Tenv is the ambient temperature, Tfridge is the refrigeration temperature of the refrigerator, topen is the average switching time of each switch, K is the basic thermal conductivity coefficient of the refrigerator, A is the opening area of ​​the refrigerator, and V is the internal volume of the refrigerator.

[0012] Preferably, determining the target refrigeration temperature of the refrigerator within the adjustable range based on the temperature loss coefficient, and adjusting the refrigeration temperature of the refrigerator to the target refrigeration temperature, includes: determining the target temperature adjustment range of the refrigerator within the adjustable range based on the temperature loss; obtaining the energy consumption of each temperature of the refrigerator within the target temperature adjustment range, taking the temperature with the lowest energy consumption within the target temperature adjustment range as the target refrigeration temperature of the refrigerator, and adjusting the refrigeration temperature of the refrigerator to the target refrigeration temperature.

[0013] Preferably, after the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature, it also includes: when the shelf life of any of the items expires, an alarm message is sent to the user terminal, and the target refrigeration temperature of the refrigerator is recalculated according to the remaining shelf life of the remaining items.

[0014] The present invention provides a device for a low-power intelligent refrigeration and fresh-keeping adjustment method, which adopts the following technical scheme: it includes a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes a computer program such as any of the above-mentioned low-power intelligent refrigeration and fresh-keeping equipment automatic adjustment methods.

[0015] The present invention provides a computer-readable storage medium, which adopts the following technical solution: a computer program that can be loaded by a processor and executes any one of the above-mentioned automatic adjustment methods of low-power intelligent refrigeration and fresh-keeping equipment is stored.

[0016] The present invention has the following advantages:

[0017] 1. Refrigerator can achieve more precise temperature control and extend the shelf life of various foods according to the characteristics and shelf life requirements of different foods;

[0018] 2. When certain items expire and are removed, the storage conditions and requirements in the refrigerator may change. Recalculating the target refrigeration temperature can better adapt to the new storage environment and optimize the refrigeration effect and energy consumption management. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of an automatic adjustment method of a low-power intelligent refrigeration and fresh-keeping device provided by an embodiment of the present invention; DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0021] In the description of the embodiments of the present invention, words such as "exemplary", "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present the relevant concepts in a specific way.

[0022] The present invention discloses an automatic adjustment method for a low-power intelligent refrigeration and fresh-keeping device. Figure 1 As shown, the method includes S101-S105.

[0023] S101, obtaining the refrigeration temperature of the refrigerator and the storage time of multiple items in the refrigerator.

[0024] Preferably, the system first monitors the current refrigeration temperature of the refrigerator in real time through the built-in temperature sensor. The temperature sensors are installed in multiple locations inside the refrigerator to ensure that the acquired temperature data accurately represents the temperature environment of the entire refrigerator. At the same time, the system records the time when each item is placed in the refrigerator, and accurately records the storage time of each item in the database through technical means such as IoT tags or barcode scanning. In this way, when it is necessary to obtain the storage time of an item, the system can quickly find the entry time of the item and calculate its storage time in the refrigerator.

[0025] Through the above implementation steps, the system can not only effectively obtain the real-time temperature of the refrigerator and the storage time of items, but also provide accurate data support for subsequent intelligent temperature adjustment.

[0026] S102, calculating the remaining shelf life of each item according to the refrigeration temperature and the storage time of each item.

[0027] Preferably, the system first obtains the current refrigeration temperature and storage time of each item recorded in S101. Then, the system calculates the storage time of each item according to the preset formula Calculate the remaining shelf life of each item. The formula is:

[0028] Among them, Tr is the remaining shelf life of the item, T0 is the initial shelf life of the item at the reference temperature Tref, k is the rate constant related to the characteristics of the item, T is the current refrigeration temperature, and ts is the storage time of the item. The reference temperature Tref refers to the reference temperature used to calculate the shelf life of an item under optimal or standard storage conditions. This is a pre-set temperature value, usually determined by food science research or industry standards, which represents the temperature of the item under ideal storage conditions. For example, for many perishable foods, the reference temperature may be 4°C, which is a common temperature under general refrigeration conditions.

[0029] The shelf life of food is significantly affected by temperature. Generally, the higher the temperature, the faster the food will spoil. The Arrhenius equation provides a mathematical model to describe this phenomenon. By using the exponential decay form This formula accurately reflects how increasing temperature exponentially accelerates the deterioration of food. The exponential decay model is used because the rate of food deterioration usually increases exponentially with increasing temperature. This form can more accurately simulate the actual situation, making the calculation of the remaining shelf life more accurate.

[0030] The reference temperature Tref provides a standardized benchmark that makes the shelf life calculation uniform. By comparing the current temperature T with the reference temperature Tref, the formula can adjust the calculation result to reflect the actual impact of the current temperature on the shelf life.

[0031] This formula takes into account two key factors, temperature and time, and provides a scientific and reasonable estimate of the remaining shelf life. The formula allows the system to dynamically update the shelf life estimate based on real-time temperature changes and storage time, thereby achieving intelligent temperature regulation. With accurate shelf life calculations, the system can better manage food preservation, extend its shelf life, reduce waste, and optimize energy consumption. It not only improves the accuracy of food preservation, but also provides technical support for intelligent refrigeration, effectively extending the shelf life of food.

[0032] Based on the above embodiment, as an optional implementation, in S102, after calculating the remaining shelf life of each item according to the refrigeration temperature and the storage time of each item, the method further includes:

[0033] If the remaining shelf life of the items is greater than the set threshold, the standard refrigeration temperature range of each item is obtained, and the temperature adjustable range of the refrigerator is determined based on the standard refrigeration temperature range of each item; the temperature energy consumption curve of the refrigerator is obtained; based on the temperature energy consumption curve, the target refrigeration temperature of the refrigerator is determined within the adjustable temperature range, and the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature.

[0034] The system first checks the remaining shelf life of each item. If the remaining shelf life of all items is greater than the set threshold, such as 7 days, the system continues to perform subsequent operations.

[0035] Next, the standard refrigeration temperature range for each item is obtained. These temperature ranges are provided by the manufacturer of each item or by relevant food safety standards. The system performs an intersection operation on these temperature ranges to determine a common temperature adjustment range that can meet the needs of all items. For example, if the standard refrigeration temperature range for item A is 2°C to 4°C, and the standard refrigeration temperature range for item B is 3°C to 5°C, then the intersection range is 3°C to 4°C.

[0036] After determining the temperature adjustment range, the system obtains the temperature energy consumption curve of the refrigerator. The temperature energy consumption curve refers to the energy consumption of the refrigerator at different temperatures. Generally, the lower the temperature, the higher the energy consumption. By analyzing this curve, the system finds the temperature point with the lowest energy consumption within the temperature adjustment range. According to the temperature energy consumption curve, the system determines the target refrigeration temperature of the refrigerator within the temperature adjustment range. For example, assuming that within the adjustment range of 3°C to 4°C, 3.5°C is the temperature point with the lowest energy consumption, then 3.5°C is set as the target refrigeration temperature. Next, the system adjusts the refrigeration temperature of the refrigerator to the target refrigeration temperature. The intelligent temperature control system will automatically adjust and continuously monitor the internal temperature to ensure that the temperature is stable near the target value.

[0037] S103: If there is at least one item whose remaining shelf life is less than a set threshold, obtain the standard refrigeration temperature range of each item, and determine the adjustable temperature range of the refrigerator according to the standard refrigeration temperature range of each item.

[0038] First, the remaining shelf life of each item calculated in S102 is checked. If it is detected that the remaining shelf life of at least one item is lower than a preset threshold (e.g., 2 days), this step is triggered. Then, the standard refrigeration temperature range of these items is obtained from the database. Each item has a corresponding optimal refrigeration temperature range in the database, and these data are usually provided by food manufacturers or relevant standards.

[0039] Next, the standard refrigeration temperature ranges of all items are intersected to determine a common temperature range suitable for all items. This intersection operation ensures that the new temperature setting can take into account the shelf life requirements of all items. For example, if the standard refrigeration temperature range of item A is 2°C to 4°C, and the standard refrigeration temperature range of item B is 3°C to 5°C, then the system will use the intersection of these two ranges (i.e. 3°C to 4°C) as the adjustable temperature range of the refrigerator.

[0040] After determining the adjustable temperature range, the system will further evaluate whether the current refrigerator temperature is within this range. If the current temperature is above the upper limit of the adjustable range, the system will calculate a new target temperature so that it falls within the adjustable range and is as close to its lower limit as possible, thereby maximizing the shelf life of the items. By dynamically adjusting the temperature of the refrigerator, the shelf life of items that are about to expire can be effectively extended and food waste can be reduced. Secondly, determining a temperature range suitable for all items avoids the situation where simply adjusting the temperature for a certain type of item causes other items to be unsuitable, ensuring the optimal preservation state of all items in the refrigerator.

[0041] In S103, determining the adjustable temperature range of the refrigerator according to the standard refrigeration temperature range of each item specifically includes:

[0042] The intersection of the standard refrigeration temperature ranges of each item is determined as the temperature adjustment range of the refrigerator, wherein the temperature adjustment range includes a lower temperature limit; if the refrigeration temperature of the refrigerator is within the temperature adjustment range, the temperature interval between the refrigeration temperature and the lower temperature limit is determined as the adjustable temperature range of the refrigerator.

[0043] First, obtain the standard refrigeration temperature ranges for all stored items. These temperature ranges are usually provided by the manufacturer of each item or by relevant food safety standards. Perform an intersection operation on these temperature ranges to determine a common temperature adjustment range that can meet the needs of all items. For example, if the standard refrigeration temperature range for item A is 2°C to 4°C, and the standard refrigeration temperature range for item B is 3°C to 5°C, then the intersection range is 3°C to 4°C.

[0044] After defining the temperature adjustment range, the system identifies the lower temperature limit of the range. In this example, the temperature adjustment range is 3°C to 4°C, so the lower temperature limit is 3°C. Next, the system checks whether the current refrigeration temperature of the refrigerator is within this temperature adjustment range. If the refrigeration temperature is already within this range (i.e., between 3°C and 4°C), the temperature interval between the current refrigeration temperature and the lower temperature limit is further defined as the adjustable temperature range of the refrigerator. For example, if the current refrigeration temperature is 3.5°C, the adjustable temperature range is 3°C to 3.5°C.

[0045] S104, obtaining the ambient temperature of the environment in which the refrigerator is located and the average switching time of the refrigerator each time it is switched on and off, and determining the temperature loss coefficient of the refrigerator each time it is switched on and off according to the ambient temperature and the average switching time.

[0046] First, the temperature of the environment in which the refrigerator is located is monitored in real time through an external ambient temperature sensor. These sensors are usually installed on the outside of the refrigerator and can accurately reflect the ambient temperature around the refrigerator. At the same time, the system records the time when the refrigerator door is opened and closed each time, and calculates the duration of each opening and closing. After a period of data accumulation, the system can calculate an average opening and closing time.

[0047] After obtaining the ambient temperature and the average switching time, the system uses a preset formula to calculate the temperature loss coefficient each time the refrigerator is switched on and off. The formula is:

[0048]

[0049] Wherein, ΔT is the temperature loss coefficient of the refrigerator each time it is switched on and off, Tenv is the ambient temperature, Tfridge is the refrigeration temperature of the refrigerator, topen is the average switching time of each switch, K is the basic thermal conductivity coefficient of the refrigerator, A is the opening area of ​​the refrigerator, and V is the internal volume of the refrigerator.

[0050] Tenv-Tfridge represents the difference between the ambient temperature and the temperature inside the refrigerator, and is the main driving force affecting the temperature change inside the refrigerator. A larger temperature difference means greater heat conduction, resulting in more significant temperature losses. The longer the door is open, the longer it takes for the outside heat to enter the refrigerator, which increases the temperature loss. Therefore, the average door opening time is a key factor affecting the temperature loss. The opening area of ​​the refrigerator affects the rate of heat conduction. A larger door area means that more heat can enter the refrigerator when the door is open, so this factor needs to be considered. The internal volume of the refrigerator determines the magnitude of the temperature change. The same amount of heat will cause a larger temperature change in a smaller volume, so the volume of the refrigerator is an important parameter for calculating temperature losses. The thermal conductivity coefficient is an empirical coefficient used to reflect the thermal conductivity characteristics of a specific refrigerator material and design. Different refrigerators may have different K values.

[0051] The reason why the internal volume V of the refrigerator is included in the formula as the denominator is to reflect the actual impact of the temperature change inside the refrigerator. The specific reason is as follows: the temperature change inside the refrigerator depends not only on the heat entering, but also on the heat capacity of the air and stored items inside the refrigerator. Heat capacity is the ability of an object to increase in temperature after absorbing heat, which is usually proportional to the volume.

[0052] A larger internal volume means that the air and items inside the refrigerator can absorb more heat without significantly heating up. Therefore, the larger the volume, the smaller the temperature change caused by the same amount of heat. When the refrigerator door is opened, hot air from the outside enters the refrigerator, and this heat is evenly distributed throughout the interior space of the refrigerator. A larger internal volume means that this heat is dispersed over a larger space, resulting in smaller temperature changes per unit volume. Distribute the heat (determined by factors such as ambient temperature and door opening time) over the entire internal volume of the refrigerator. The larger the volume, the less heat is distributed per unit volume, resulting in smaller temperature changes. By incorporating the internal volume of the refrigerator, V, into the formula and using it as the denominator, it can more accurately reflect the temperature change of the refrigerator when the door is open.

[0053] S105, determining a target refrigerating temperature of the refrigerator within an adjustable range according to the temperature loss coefficient, and adjusting the refrigerating temperature of the refrigerator to the target refrigerating temperature.

[0054] In one example, the temperature loss coefficient calculated in step S104 is used to evaluate the temperature change trend in the current refrigerator. The system combines the previously determined adjustable range of the refrigerator temperature (obtained in step S103) to calculate a new target refrigeration temperature, ensuring that the target temperature is within the adjustable range while taking into account the temperature loss, so that the final internal temperature can reach or be as close to the optimal refrigeration temperature as possible.

[0055] Next, adjust the temperature control device of the refrigerator to the target refrigeration temperature. This process is automatically completed by the intelligent temperature control system in the refrigerator. The system will continuously monitor the internal temperature and make fine adjustments based on the actual temperature changes to ensure that the internal temperature is stable near the target refrigeration temperature.

[0056] By setting the target temperature within the adjustable range, the system can ensure that all items are stored in a suitable temperature environment and extend their shelf life. Secondly, taking into account the temperature loss coefficient, the system can predict temperature changes in advance and make pre-adjustments to reduce the impact of temperature fluctuations on items and maintain the constancy of the temperature in the refrigerator. This not only optimizes the refrigeration effect, but also reduces energy consumption and improves the operating efficiency of the refrigerator.

[0057] Assume that there is a household refrigerator that contains a variety of foods, including milk, vegetables, and fruits. Set this refrigerator as a smart refrigerator, and obtain and calculate relevant data according to the previous steps. The standard refrigeration temperature range of items is: milk: 2℃~4℃, vegetables: 1℃~5℃, and fruits: 3℃~6℃.

[0058] Based on these data, the adjustable temperature range of the refrigerator is 3℃~4℃ (intersection range). Ambient temperature: Assume that the current ambient temperature is 25℃. Average switching time of the refrigerator each time it is opened and closed: After a period of data accumulation, the average switching time is 10 seconds. Temperature loss coefficient: Assume that the calculated temperature loss coefficient is 1℃, which means that each time the door is opened, the internal temperature of the refrigerator will increase by 1℃ on average.

[0059] According to the standard refrigeration temperature range of the items, select a moderate optimal refrigeration temperature. Assuming that 3.5°C is selected as the optimal refrigeration temperature, since the temperature loss coefficient is 1°C, the refrigeration temperature of the refrigerator is adjusted to 3.5°C-1°C=2.5°C. However, 2.5°C is lower than the lower limit of the adjustable range (3°C), so the target refrigeration temperature is set to the lower limit of the adjustable range, that is, 3°C.

[0060] The target refrigeration temperature of the refrigerator is determined within an adjustable range according to the temperature loss coefficient, and the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature. Specifically, the target temperature adjustment range of the refrigerator is determined within the adjustable range according to the temperature loss; the energy consumption of each temperature of the refrigerator within the target temperature adjustment range is obtained, the temperature with the lowest energy consumption within the target temperature adjustment range is used as the target refrigeration temperature of the refrigerator, and the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature.

[0061] The system obtains the temperature loss coefficient by calculation or preset, which reflects the natural rise or fall of the temperature of the refrigerator within a certain period of time. The system preliminarily determines the target temperature adjustment range of the refrigerator based on the current refrigeration temperature and the temperature loss coefficient. For example, assuming that the current refrigeration temperature is 3.5℃ and the temperature loss coefficient is 0.5℃, the target temperature adjustment range may be 3℃ to 3.5℃.

[0062] After determining the target temperature adjustment range, obtain the energy consumption data of each temperature point within the range. The temperature energy consumption curve provides the energy consumption of the refrigerator at different temperatures. Evaluate the energy consumption of each temperature point one by one within the target temperature adjustment range. For example, within the range of 3℃ to 3.5℃, the system may evaluate the energy consumption of each temperature point such as 3.0℃, 3.1℃, and 3.2℃.

[0063] Based on the evaluation results, the system identifies the temperature point with the lowest energy consumption within the target temperature adjustment range. For example, if the energy consumption is the lowest at 3.2°C within the range of 3°C to 3.5°C, 3.2°C will be set as the target refrigeration temperature.

[0064] After the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature, it also includes: when the shelf life of any item expires, an alarm message is sent to the user terminal, and the target refrigeration temperature of the refrigerator is recalculated according to the remaining shelf life of the remaining items.

[0065] Monitor the shelf life of each item in the refrigerator. When the shelf life of any item is detected to be about to expire, the system will immediately send an alarm message to the user terminal. The alarm message includes the name, location and expiration time of the item that is about to expire. The user can receive this information through a mobile phone application or other terminal device, and deal with the items that are about to expire in a timely manner, such as eating them first or disposing of them.

[0066] The purpose of sending alarm information is to prevent safety hazards caused by expired food and reduce waste. By reminding users in time, the system can help users better manage refrigerated items and improve usage efficiency.

[0067] After the alarm message is sent, the target refrigeration temperature of the refrigerator is recalculated based on the remaining shelf life of the remaining items. First, the system re-acquires the standard refrigeration temperature range and remaining shelf life of the remaining items in the refrigerator. Similar to the previous steps, the system calculates the intersection of the standard refrigeration temperature range of each item and determines the new adjustable temperature range.

[0068] Next, combine the newly acquired temperature loss coefficient and energy consumption data to evaluate the energy consumption of each temperature point within the new adjustable temperature range. Find the temperature point with the lowest energy consumption within the new range and set it as the new target refrigeration temperature. For example, after recalculation, the new lowest energy consumption temperature point is 3.0℃, so 3.0℃ is set as the new target refrigeration temperature.

[0069] Finally, the refrigeration temperature of the refrigerator is adjusted to the new target refrigeration temperature through the intelligent temperature control device, and the temperature is continuously monitored and dynamically adjusted to ensure that the temperature inside the refrigerator is stable near the new target value.

[0070] An electronic device readable storage medium stores instructions, which, when executed by one or more processors, enable the electronic device to execute one or more of the methods described in the above embodiments.

[0071] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0072] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0073] In the several embodiments provided by the present invention, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0074] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0075] Each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0076] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned memory includes: various media that can store program codes, such as USB flash drives, mobile hard drives, magnetic disks or optical disks.

[0077] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of other embodiments of the present disclosure. The present invention is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

[0078] For color printing results, analyze the quantitative indicators of color. For example, in the RGB or CMYK color space, calculate the color value of each pixel and compare it with the color value of the original image to calculate the color difference (such as ΔE value). The larger the ΔE value, the greater the color deviation, which may be caused by factors such as the color channel configuration of the color nozzle, the ink drop size distribution, and the mixing ratio of the ink.

[0079] Analyze the distribution of ink droplets in the print results, and use the relevant functions of the software to count the number, size, and distribution density of ink droplets. Compare these parameters with the ink drop size distribution range of the printhead to see if there are ink droplets that are too large or too small, too densely distributed or sparsely distributed. These situations may affect the print quality, such as causing ink accumulation, uneven color, and other problems.

[0080] S6, calibrate the nozzle

[0081] Based on the visual analysis and data quantitative analysis results of the virtual printing results, determine the direction and magnitude of the printhead calibration. For example, if the visual analysis finds that the print result is blurred in the vertical direction, and the data quantitative analysis shows that the printhead has a large deviation in the inkjet accuracy in the vertical direction, then the printhead needs to be calibrated in the vertical direction, and the calibration magnitude can be determined based on the magnitude of the deviation. If the deviation is small, fine-tuning can be performed; if the deviation is large, a larger adjustment may be required.

[0082] For color printing results, if the color deviation is large, such as the ΔE value exceeds the acceptable range (generally it can be set according to the print quality requirements, such as a ΔE value greater than 5 can be considered a large color deviation), then it is necessary to calibrate the color channel of the color nozzle and adjust the inkjet volume, mixing ratio and other parameters of the color channel to improve color accuracy and the naturalness of color transitions.

[0083] The actual calibration operation of the printhead is performed through the printer's setup software or a special printhead calibration tool. When performing the calibration operation, adjustments must be made in accordance with the determined calibration direction and amplitude. For example, if the printhead needs to be fine-tuned in the vertical direction, the fine-tuning function in the setup software can be used to adjust it according to a certain scale unit (such as each grid represents 0.1 mm movement of the printhead in the vertical direction); if the color channel of the color printhead needs to be adjusted, the corresponding color channel adjustment option can be found in the setup software, and the inkjet volume, mixing ratio, etc. can be adjusted according to the analysis results.

[0084] During the calibration process, pay close attention to the printer's status and feedback information. Some printers will provide real-time status display during calibration, such as changes in parameters such as nozzle pressure, ink jet volume, temperature, etc. By observing these feedback information, you can promptly discover possible problems, such as nozzle blockage, ink supply system failure, etc., and take appropriate measures to deal with them.

[0085] After completing the printhead calibration operation, perform virtual printing simulation again and regenerate the virtual printing result according to the previous settings. Then, perform the same visual analysis and data quantitative analysis on the new virtual printing result to check whether the calibration effect meets expectations. If the calibration effect is not ideal, such as obvious blurring, color deviation and other problems, it is necessary to re-analyze the calibration results, adjust the calibration strategy, and continue the calibration operation until a satisfactory calibration effect is obtained.

Claims

1. An automatic adjustment method for low-power intelligent refrigeration and fresh-keeping equipment, characterized in that: The method comprises: Obtaining a refrigeration temperature of a refrigerator and a storage time of multiple items in the refrigerator; Calculating the remaining shelf life of each of the items according to the refrigeration temperature and the storage time of each of the items; If there is at least one of the items whose remaining shelf life is less than the set threshold, the standard refrigeration temperature range of each of the items is obtained, and the adjustable temperature range of the refrigerator is determined according to the standard refrigeration temperature range of each of the items; Acquire the ambient temperature of the environment in which the refrigerator is located and the average switching time of the refrigerator each time it is switched on and off, and determine the temperature loss coefficient of the refrigerator each time it is switched on and off according to the ambient temperature and the average switching time; According to the temperature loss coefficient, a target refrigeration temperature of the refrigerating cabinet is determined within the adjustable range, and the refrigeration temperature of the refrigerating cabinet is adjusted to the target refrigeration temperature.

2. The automatic adjustment method of a low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: Calculating the remaining shelf life of each of the items according to the refrigeration temperature and the storage time of each of the items includes: substituting the refrigeration temperature and the storage time of each of the items into a preset formula to calculate the remaining shelf life of each of the items; wherein the preset formula is: Tr=T0×ek(T-Tref)-ts; Wherein, Tr is the remaining shelf life, T0 is the shelf life of each item at the reference temperature, k is the adjustment coefficient, T is the refrigeration temperature, Tref is the reference temperature, and ts is the storage time of each item.

3. The automatic adjustment method of a low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: Determining the adjustable temperature range of the refrigerator according to the standard refrigeration temperature range of each of the items includes: Determine the intersection of the standard refrigeration temperature ranges of the items as the temperature adjustment range of the refrigerator, wherein the temperature adjustment range includes a lower temperature limit; If the refrigerating temperature of the refrigerator is within the temperature adjustment range, the temperature interval between the refrigerating temperature and the lower temperature limit is used as the adjustable temperature range of the refrigerator.

4. The automatic adjustment method of a low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: After calculating the remaining shelf life of each of the items according to the refrigeration temperature and the storage time of each of the items, the method further includes: If the remaining shelf life of the items is greater than the set threshold, the standard refrigeration temperature range of each item is obtained, and the adjustable temperature range of the refrigerator is determined according to the standard refrigeration temperature range of each item; Obtaining a temperature energy consumption curve of the refrigerator; According to the temperature energy consumption curve, a target refrigeration temperature of the refrigerating cabinet is determined within the temperature adjustable range, and the refrigeration temperature of the refrigerating cabinet is adjusted to the target refrigeration temperature.

5. The automatic adjustment method of low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: The step of determining the temperature loss coefficient of the refrigerator each time it is switched on and off according to the ambient temperature and the average switching time comprises: Substitute the ambient temperature and the average switching time into the temperature loss formula to calculate the temperature loss coefficient of the refrigerator each time it is switched on and off; wherein, The temperature loss coefficient formula: In the formula, ΔT is the temperature loss coefficient of the refrigerator each time it is switched on and off, Tenv is the ambient temperature, Tfridge is the refrigeration temperature of the refrigerator, to pen is the average switching time of each switch, K is the basic thermal conductivity coefficient of the refrigerator, A is the opening area of ​​the refrigerator, and V is the internal volume of the refrigerator.

6. The automatic adjustment method of low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: The step of determining a target refrigeration temperature of the refrigerator within the adjustable range according to the temperature loss coefficient, and adjusting the refrigeration temperature of the refrigerator to the target refrigeration temperature includes: Determining a target temperature adjustment range of the refrigerator within the adjustable range according to the temperature loss; The energy consumption of each temperature of the refrigerator within the target temperature adjustment range is obtained, the temperature with the lowest energy consumption within the target temperature adjustment range is used as the target refrigeration temperature of the refrigerator, and the refrigeration temperature of the refrigerator is adjusted to the target refrigeration temperature.

7. The automatic adjustment method of low-power intelligent refrigeration and fresh-keeping equipment according to claim 1, characterized in that: After the refrigeration temperature of the refrigeration cabinet is adjusted to the target refrigeration temperature, the method further comprises: When the shelf life of any of the items expires, an alarm message is sent to the user terminal, and the target refrigeration temperature of the refrigerator is recalculated according to the remaining shelf life of the remaining items.

8. An electronic device, characterized in that: It includes a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes the method as described in any one of claims 1-7.

9. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 7.

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