Refrigerator control method, controller, refrigerator and storage medium

Abstract

The embodiment of the present application proposes a control method, a controller, a refrigerator and a storage medium for a refrigerator, wherein the control method of the refrigerator includes the following steps: determining a target mode, determining the target light radiation dose of the first lamp and the second lamp according to the target mode, then driving the first lamp and the second lamp to irradiate the target food based on the target light radiation dose, and driving the third lamp to irradiate the target food according to the preset light radiation dose. Since blue light, UVB and red light can all increase the anthocyanin content of berries, red light can increase the chlorophyll and carotenoid content of green vegetables, UVB can increase the lycopene content of tomatoes, phenolic compounds in fruits and vegetables, and vitamin D content in mushrooms, and their synergistic effect can be more obvious than the improvement effect of monochromatic light. Therefore, in the embodiment of the present application, when the first lamp, the second lamp and the third lamp cooperate with each other for illumination, the function of improving the nutrition of stored fruits and vegetables while extending the shelf life can be achieved.

Description

Technical Field

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

[0002] In the related art, existing refrigerators are usually equipped with LED (Light Emitting Diode) lamps, and the LED lamps are used to illuminate the food in the refrigerator, thereby extending the shelf life of the food. However, since the food contains a variety of nutrients, the current lighting method can only improve the quality rate of fruits and vegetables and extend the shelf life of fruits and vegetables, but cannot increase the content of multiple nutrients in the food. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a refrigerator control method, a controller, a refrigerator and a storage medium, aiming to improve the nutrition of stored fruits and vegetables while extending the shelf life.

[0004] In a first aspect, an embodiment of the present application provides a control method for a refrigerator, wherein the refrigerator is provided with a nutrition enhancement drawer, wherein a first lamp, a second lamp and a UVB (ultraviolet radiation b) lamp are provided inside the nutrition enhancement drawer; the method comprises:

[0005] Identify target patterns;

[0006] determining target light radiation doses of the first lamp and the second lamp according to the target pattern;

[0007] The first lamp and the second lamp are driven to irradiate the target food based on the target light radiation dose, and the third lamp is driven to irradiate the target food according to a preset light radiation dose.

[0008] According to some embodiments of the present application, determining the target mode includes one of the following:

[0009] Identify the target food through the identification component inside the growth drawer, determine the food category of the target food, and determine the corresponding general mode according to the food category;

[0010] A mode selection instruction input by a user is received, and a corresponding general mode is determined according to the mode selection instruction.

[0011] According to some embodiments of the present application, the general mode includes a mixed mode, a fruit mode or a vegetable mode, wherein the light radiation dose of the second lamp in the fruit mode is greater than the light radiation dose in the mixed mode, and the light radiation dose of the first lamp in the vegetable mode is greater than the light radiation dose in the mixed mode.

[0012] According to some embodiments of the present application, including:

[0013] When the illumination intensities of the second lamp in the fruit mode and the mixed mode are consistent, the illumination duration of the second lamp in the fruit mode is greater than the illumination duration in the mixed mode;

[0014] When the illumination intensities of the first lamp in the vegetable mode and in the mixed mode are consistent, the illumination duration of the first lamp in the vegetable mode is greater than the illumination duration in the mixed mode.

[0015] According to some embodiments of the present application, determining the target mode includes:

[0016] The target food is identified by the identification component inside the growth drawer, the food name of the target food is determined, and the corresponding personalized mode is determined according to the food name, wherein different food names correspond to different target light radiation doses of the first lamp and to different target light radiation doses of the second lamp.

[0017] According to some embodiments of the present application, identifying the target food by the identification component inside the nutrition-enhancing drawer to determine the food category of the target food includes one of the following:

[0018] photographing the target food with a camera to obtain a photographed image, and determining the food category of the target food according to image data of the target food in the photographed image;

[0019] The target food is imaged by a hyperspectral or multispectral imaging device to obtain a spectral image, and the food category of the target food is determined according to the spectral data of the target food in the spectral image.

[0020] According to some embodiments of the present application, the preset light radiation dose is determined by at least one of the following steps:

[0021] Obtaining a first variation trend of the appearance of a preset category of food with respect to radiation dose, and determining a preset light radiation dose according to the first variation trend;

[0022] Obtaining a second variation trend of the weight loss rate of a preset category of food as a function of radiation dose, and determining a preset light radiation dose according to the second variation trend;

[0023] A third variation trend of the nutrient enhancement rate of a preset category of food with respect to radiation dose is obtained, and a preset light radiation dose is determined according to the third variation trend.

[0024] According to some embodiments of the present application, the preset light radiation dose is greater than or equal to 0.36 and less than or equal to 1.42 .

[0025] According to some embodiments of the present application, the preset light radiation dose is 0.71 .

[0026] According to some embodiments of the present application, the preset category of ingredients is leafy vegetables.

[0027] According to some embodiments of the present application, the illumination wavelength range of the second lamp is 380 to 500 nm, and the illumination intensity range is 1.0 to 1.5 , the light duration range is 2 to 4h / d;

[0028] The first lamp has a wavelength range of 620 to 750 nm and a light intensity range of 0.3 to 0.6 , the light duration range is 2 to 4h / d;

[0029] The third lamp has a wavelength range of 280 to 320 nm and a light intensity range of 10 to 100 nm. , the lighting duration range is 3 to 10min / d.

[0030] In a second aspect, an embodiment of the present application provides a control method for a refrigerator, wherein the refrigerator is provided with a nutrition-enhancing drawer, wherein a first lamp, a second lamp, and a third lamp are provided inside the nutrition-enhancing drawer, wherein the first lamp is an LED lamp that generates red light, the second lamp is an LED lamp that generates blue light, and the third lamp is an LED lamp that generates UVB, and the method comprises:

[0031] Identify target patterns;

[0032] determining target illumination durations of the first lamp and the second lamp according to the target mode;

[0033] The first lamp and the second lamp are driven to illuminate the target food based on the target illumination duration, and the third lamp is driven to illuminate the target food according to a preset illumination duration.

[0034] In a third aspect, an embodiment of the present application provides a controller comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the refrigerator control method of the first aspect and / or the second aspect mentioned above when running the computer program.

[0035] In a fourth aspect, an embodiment of the present application provides a refrigerator comprising the controller of the third aspect described above.

[0036] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the refrigerator control method as described in the first aspect and / or the second aspect above.

[0037] In the sixth aspect, an embodiment of the present application provides a computer program product, including a computer program or a computer instruction, characterized in that the computer program or the computer instruction is stored in a computer-readable storage medium, a processor of a computer device reads the computer program or the computer instruction from the computer-readable storage medium, and the processor executes the computer program or the computer instruction, so that the computer device executes the refrigerator control method as described in the first aspect and / or the second aspect above.

[0038] According to the technical solution of the embodiment of the present application, at least the following beneficial effects are achieved: first, the refrigerator is provided with a growth drawer, and the first lamp, the second lamp and the third lamp are provided inside the growth drawer; then, the target mode is determined, and the target light radiation dose of the first lamp and the second lamp is determined according to the target mode. Then, the embodiment of the present application drives the first lamp and the second lamp to irradiate the target food based on the target light radiation dose, and drives the third lamp to irradiate the target food according to the preset light radiation dose. Since blue light, UVB and red light can increase the anthocyanin content of berries, red light can increase the chlorophyll and carotenoid content of green vegetables, UVB can increase the lycopene content of tomatoes, phenolic compounds in fruits and vegetables, and vitamin D content in mushrooms, and their synergistic effect can be more obvious than the improvement effect of monochromatic light. Therefore, when the second lamp, the first lamp and the third lamp cooperate with each other for illumination, the embodiment of the present application can realize the function of increasing the storage of multiple nutrients of fruits and vegetables while extending the shelf life.

[0039] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0041] Figure 1 is a schematic diagram of the structure of a light board provided by an embodiment of the present application;

[0042] Figure 2This is a schematic diagram of light-regulated fruit and vegetable nutrients provided by an embodiment of the present application;

[0043] Figure 3 It is a line graph of the effect of different light waves on the content of synthetic anthocyanins in berries provided by one embodiment of the present application;

[0044] Figure 4 This is a schematic diagram of the synthesis of phenolic compounds by UVB provided in one embodiment of the present application;

[0045] Figure 5 is a flow chart of a refrigerator control method provided by an embodiment of the present application;

[0046] Figure 6 This is an operation flow chart of the fruit mode provided by an embodiment of the present application;

[0047] Figure 7 This is an operation flow chart of the vegetable mode provided by an embodiment of the present application;

[0048] Figure 8 is an operation flow chart of a hybrid mode provided by an embodiment of the present application;

[0049] Fig. 9 It is an operation logic diagram of UVB provided by one embodiment of the present application;

[0050] Fig.10 It is a bar graph of the effect of UVB radiation dose on VD2 enrichment provided by one embodiment of the present application;

[0051] Fig.11 is a bar graph of UVB radiation dose versus lettuce weight loss rate provided by an embodiment of the present application;

[0052] Fig.12 This is a curve diagram of the effect of UVB radiation dose on the nutrient enhancement rate of lettuce provided in one embodiment of the present application;

[0053] Fig.13 This is a data graph of an intelligent light quantum nutrition enhancement result provided by an embodiment of the present application;

[0054] Fig.14 It is a schematic diagram of a controller for executing a refrigerator control method provided by an embodiment of the present application. DETAILED DESCRIPTION

[0055] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0056] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0058] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0059] It can be understood that vegetables and fruits are an important part of the diet. As plant-derived food raw materials, fruits and vegetables are not only rich in vitamins, inorganic salts and dietary fiber necessary for the human body, but also contain various biologically active ingredients, such as anthocyanins, polyphenols, carotenoids, monoterpenes, flavonoids, etc., which have high nutritional value and physiological functions.

[0060] In some cases, existing refrigerators are usually equipped with LED lights, and the LED lights are used to illuminate the food in the refrigerator, thereby extending the shelf life of the food. However, since the food contains a variety of nutrients, the current lighting method can only improve the quality rate of fruits and vegetables and extend the shelf life of fruits and vegetables, but cannot increase the content of multiple nutrients in the food.

[0061] Based on the above situation, the embodiments of the present application propose a refrigerator control method, a controller, a refrigerator and a storage medium, aiming to improve the nutrition of stored fruits and vegetables while extending the shelf life.

[0062] The following is a further description of various embodiments of the refrigerator of the present application in conjunction with the accompanying drawings.

[0063] like Figure 1 As shown, Figure 1 It is a schematic diagram of the structure of a lamp board provided in one embodiment of the present application.

[0064] In one embodiment, the refrigerator includes a growth drawer, the growth drawer includes a light board 100, the light board 100 is provided with LED lights, and the LED lights include a second light 110, a first light 120 and a third light 130. Among them, the first light 120 is an LED light that generates red light, the second light 110 is an LED light that generates blue light, and the third light 130 is an LED light that generates UVB.

[0065] In one embodiment, four second lamps 110 , two first lamps 120 and one third lamp 130 are mounted on the lamp board 100 .

[0066] In one embodiment of the present application, the length of the lamp board 100 is 180 mm, two second lamps 110 are installed 10 mm away from the upper edge of the lamp board 100, two second lamps 110 are installed 10 mm away from the lower edge of the light board 100, two first lamps 120 are installed above the second lamps 110 at the lower edge and at a distance of 80 mm, and one third lamp 130 is installed above the two first lamps 120 and at a distance of 13 mm.

[0067] It should be noted that the growth drawer designed in the embodiment of the present application is provided with a sealing structure and when the load of the growth drawer is greater than 80% of vegetables, the average relative humidity of the compartment is ensured to be greater than 95%.

[0068] See also Figure 2 , Figure 2 This is a schematic diagram of the principle of light-regulated fruit and vegetable nutrients provided in one embodiment of the present application.

[0069] Light waves can regulate gene expression and key enzyme activity in nutrient synthesis in the metabolic pathways of fruits and vegetables, thereby increasing the content of functional active substances in fruits and vegetables. Perceive light includes UVB, UVA (Ultraviolet Radiation A), Blue, Green, Red, and Far-red. Different light corresponds to different wavelengths. Chromophores include: Trp (tryptophan), FAD (Flavin Adenine Dinucleotide), MTHF (Methyltetrahydrofolate), FMN (Flavin Mononucleoside), etc., which are components of photosensitive pigments. Photoreceptors: Proteins in plants that sense light signals, including the following types: UVR8: a UVB light receptor in plants that binds to pigments and responds to UVB radiation; Cryptochromes: a blue light receptor that is involved in regulating the photoperiodic response of plants; Phototropins: respond to blue light and participate in the phototropic response of plants; ZTL (ZEITLUPE): a plant blue light receptor associated with phototropins; Phytochromes: respond to red and far-red light and regulate a variety of growth and development processes in plants.

[0070] See also Figure 3 , Figure 3 This is a line graph showing the effect of different light waves on the content of synthetic anthocyanins in berries provided by an embodiment of the present application.

[0071] Under the same number of irradiation days, the anthocyanins produced by irradiating strawberries with blue light, red light and UVC respectively have a certain improvement over the anthocyanins produced without irradiation. Among them, the increase in the anthocyanin content of strawberries after irradiation with blue light is the largest compared with the content of strawberries produced without irradiation, the increase in the anthocyanin content of strawberries irradiated with red light is in the middle, and the increase in the anthocyanin content of strawberries irradiated with UVC is the smallest compared with the content of strawberries produced without irradiation. It can be seen that appropriate irradiation of berry foods with blue light and red light can increase the anthocyanin content of berries.

[0072] like Figure 4 As shown, Figure 4 This is a schematic diagram of the synthesis of phenolic compounds by UVB provided in one embodiment of the present application.

[0073] Low doses of UVB can affect gene expression. There are UVB photoreceptors UVRB (photosensitive proteins) in plants that can sense UVB radiation. UVB radiation triggers signal transduction through the UVR8 receptor, thereby regulating the expression of genes related to phenol synthesis. Phenol synthesis structural genes: including PAL (Phenylalanine Ammonia Lyase), CHS (Phenylalanine ammonia-lyase), CH (Chalcone Synthase), etc. These genes are involved in the synthesis of phenolic compounds. Phenol synthesis regulatory genes: such as MYB transcription factors, bHLH (Basic Helix-Loop-Helix), WD40 (WD40 repeat sequence) and other transcription factor families, which regulate the activity of phenol synthesis structural genes, and then phenols will accumulate.

[0074] High doses of UVB can cause oxidative stress and produce ROS (Reactive Oxygen Species). UVB irradiation increases the expression of phenol synthesis genes, thereby reducing the existing amount of phenolic substances. As the number of phenol synthesis genes increases, phenols will also accumulate.

[0075] The nutrient content in the experiment of the present invention was tested by the following method:

[0076] (1) Anthocyanins

[0077] For the selected test materials, randomly select the anthocyanin content before putting them into the refrigerator, and put the remaining test materials into the refrigerator to start the anthocyanin enhancement function and start the timing. Take them out after 168 hours of storage and test the anthocyanin content according to QMB-J070.0063-2022. One sample is measured three times in parallel, and the final result is the average value. The anthocyanin enhancement rate calculation formula is as follows:

[0078] Anthocyanin enhancement rate (%) = (C-C0) / C0*100%;

[0079] Where: C0——the anthocyanin content of the test material before being placed in the refrigerator, mg / kg;

[0080] C——Anthocyanin content of the test material 168 hours after the anthocyanin enhancement function is activated when the test material is placed in the refrigerator, mg / kg.

[0081] (2) Chlorophyll and carotenoids

[0082] The determination of chlorophyll and carotenoid content was carried out according to the method of Wang Xuekui. The test method is as follows: take about 50g of lettuce leaves, put them into a food processor, add distilled water at a ratio of 1:1, and beat for 30s for later use. Accurately weigh 1.0g of homogenized juice in a 100mL centrifuge tube, add 30mL of 95% ethanol solution, and extract in a 4°C refrigerator for 4h. Centrifuge the extract in a high-speed centrifuge for 10min (10000rpm, 4°C), and measure the absorbance of the supernatant at 649nm and 665nm respectively. Extract at 4°C in the dark for 2h. Centrifuge the extract at 4°C and 10000g for 10min, and take the supernatant to measure the absorbance at 665nm, 649nm, and 470nm respectively. Test the chlorophyll and carotenoid content of vegetables before being placed in the refrigerator and after storage for 168h, and each sample is measured in parallel three times.

[0083] Chlorophyll a content (mg / g) = (13.95A 665 -6.88 A649 )×V×N / W;

[0084] Chlorophyll b content (mg / g) = (24.96A 649 -7.32A 665 )×V×N / W;

[0085] Chlorophyll (a+b) content (mg / g) = (C a +C b )×V×N / W;

[0086] Carotenoid content (mg / g) = [(1000A 470 -3.27C a -104C b ) / 229]×V×N / W;

[0087] Chlorophyll enhancement rate (%) = (chlorophyll content after 168h / initial chlorophyll content-1) × 100%;

[0088] Carotenoid enhancement rate (%) = (carotenoid content after 168 h / initial carotenoid content-1) × 100%;

[0089] Where:

[0090] V—volume of the extract, mL;

[0091] N—dilution multiple;

[0092] W—leaf fresh weight, g;

[0093] C a —Chlorophyll a content, mg / L;

[0094] Cb —Chlorophyll b content, mg / L.

[0095] (3) Lycopene

[0096] Refer to NY / T 1651-2008, use high performance liquid chromatography to measure, the samples are frozen samples at -20℃ at each sampling point. Each sampling point is measured twice, and the measurement results are averaged.

[0097] (4) Vitamin C

[0098] Take weighed fresh samples and test the initial vitamin C content of the test vegetables according to the third method of GB 5009.86-2016.

[0099] (5) Vitamin D content

[0100] Sample preparation

[0101] For fresh mushrooms or mushrooms that have been stored in the refrigerator and have reached the declared shelf life, cut off the roots or remove the stems, slice them, place them in an electric blast drying oven, bake them at 55℃ for 24h, take them out, grind them into powder, pass them through a 200-mesh sieve, cool them to room temperature, pack them in sealed bags, and store them at low temperature (4-10℃) for later use.

[0102] Extraction of Vitamin D

[0103] Accurately weigh 1g of dried mushroom powder (passed through a 30-mesh sieve) in a 100-mL centrifuge tube, add 40 mL of 20% KOH solution, mix thoroughly, then add 20 mL of isopropanol, extract at 60°C for 1h, add 40 mL of petroleum ether (containing 2.0 mL of 10 mg / L BHT, boiling range 30-60°C) as the extractant, shake and let stand for 10 min, take the upper extract, extract the lower aqueous phase with 40 mL of petroleum ether (containing 2.0 mL of 10 mg / L BHT), let stand for 10 min, take the upper liquid, centrifuge at 10000 rpm for 2 min, and take the supernatant; combine the two upper extracts, wash with water until neutral, use a rotary evaporator to evaporate the solvent, dilute to 5 mL with chromatographic grade anhydrous ethanol to obtain the extract, filter with a 0.22 μm organic filter membrane, and then measure on the machine.

[0104] Drawing of standard curve

[0105] Accurately measure 50μL, 250μL, 750μL, 1mL, and 2mL of VD2 standard stock solution into 10mL brown volumetric flasks, and make up to volume with chromatographic grade anhydrous ethanol solution to prepare VD2 standard solutions with concentrations of 1, 5, 10, 15, 20, and 40μg / ml, respectively. A total of 6 solutions of different concentrations are ready for use.

[0106] Chromatographic Detection Conditions for Vitamin D

[0107] Instrument: High performance liquid chromatograph (Agilent 1260);

[0108] Column: RPC 18 Column, 4.6 × 100 mm, 3.5 μm;

[0109] Detector: diode array detector;

[0110] Mobile phase: acetonitrile-0.1% formic acid aqueous solution (95:5);

[0111] Flow rate: 1 mL / min;

[0112] Detection wavelength: 282nm;

[0113] Column temperature: 30°C;

[0114] Injection volume: 10 μL.

[0115] (6) Mushroom polysaccharides

[0116] Sample pretreatment: After sampling, slice the mushrooms and place them in an electric blast drying oven at 55°C for 24 h. Grind them into powder, cool them to room temperature, seal them in bags, and store them at low temperature (4°C~10°C) for later use.

[0117] Weigh 1 g (accurate to 0.001 g) of mushroom powder into a 50 mL centrifuge tube, add 20 mL of ultrapure water, ultrasonicate for 20 min, heat in a water bath at 90°C for 1 hour, filter while hot, wash the filter and filter residue with a small amount of hot water, place the filter residue in a 50 mL centrifuge tube, add 20 mL of ultrapure water, ultrasonicate for 20 min, heat in a water bath at 90°C for 1 hour, filter while hot, wash the filter and filter residue with a small amount of hot water. Combine the two filtrates in a round-bottom flask, evaporate to dryness, dissolve the residue with 3 ml of water, slowly add 40 mL of ethanol while stirring, shake well, place at 4°C for 12 hours, centrifuge, discard the supernatant, dissolve the precipitate with hot water and transfer to a 50 mL volumetric flask, cool, add water to the mark, shake well, and you have it.

[0118] Drawing of polysaccharide standard curve: Anthrone sulfate solution: Accurately weigh 0.1 g of anthrone, add 100 ml of sulfuric acid to dissolve, and shake well. 0.12 mg / mL glucose standard stock solution: Accurately weigh 0.0060 g of anhydrous glucose, dissolve it with a small amount of water, dilute to 50 mL, and mix well. The mass concentration of glucose in this solution is 0.12 mg / mL. Pipette 0.0, 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 mL of glucose standard stock solution into 10 mL stoppered test tubes, add water to 2 mL each, quickly add 6 mL of anthrone sulfate solution, shake well, let it react for 15 minutes, cool in an ice bath for 15 min, take out and use a spectrophotometer to measure the absorbance at a wavelength of 625 nm, and draw a standard curve with absorbance as the ordinate and glucose concentration as the abscissa.

[0119] (7) Total phenols

[0120] The total phenol content in food materials was determined by Folin phenol colorimetric spectrophotometry. Under alkaline conditions, polyphenols can reduce phosphotungstic acid molybdic acid to blue by utilizing the reducing property of polyphenols. The depth of blue is positively correlated with the polyphenol content. The absorbance value was measured at 760nm and quantified by external standard method.

[0121] Solution preparation

[0122] Folin solution: Mix 1 mol / L Folin and distilled water in a ratio of 1:4;

[0123] 7.5% Na2CO3: Prepare by weighing 37.50 g of anhydrous sodium carbonate and making up to 500 mL with deionized water;

[0124] 0.4 mg / mL gallic acid standard stock solution: Accurately weigh 5 mg of gallic acid standard into a 25 mL brown volumetric flask, dilute to volume with methanol, and store at 4°C in dark until use, i.e. the concentration is 0.2 mg / mL.

[0125] Procedure

[0126] Extraction of polyphenols

[0127] Randomly select 10 strawberries and blend them in a food processor for 10 seconds to mix the pulp evenly. Accurately weigh 5g of sample into a 100mL centrifuge tube (take three parallel samples), add 20mL of methanol, homogenize at 10000rpm for 30s, and extract with ultrasound in the dark for 10min. Centrifuge the above mixture in a high-speed centrifuge for 10 minutes (10000rpm, 4℃), and the supernatant is the polyphenol extract.

[0128] Drawing of standard curve

[0129] Pipette 0uL, 1mL, 2mL, 4mL, 8mL, 10mL gallic acid standard stock solution into a 10mL centrifuge tube, add 10mL, 9mL, 8mL, 6mL, 2mL and 0mL deionized water respectively, and mix well to obtain gallic acid solutions with concentrations of 0, 20, 80, 160, and 200ug / mL respectively. Pipette 200uL of the above hemolysis into a 10mL centrifuge tube respectively, add 2mL of Folin phenol solution, react at room temperature for 5min, then add 2mL of 7.5% Na2CO3 solution, and protect from light at room temperature for 60min. Use distilled water as a blank control, and use a UV spectrophotometer to measure the absorbance of the reaction solution at 760nm. Draw a standard curve with concentration x (ug / mL) as the horizontal axis and absorbance value A as the vertical axis.

[0130] Determination of polyphenol content

[0131] Take two portions of 200uL of the above polyphenol extract, place them in two 10mL centrifuge tubes, add 2mL of Folin phenol solution, react at room temperature for 5min, then add 2mL of 7.5% Na2CO3 solution, and keep at room temperature in the dark for 60min. Use distilled water as a blank control and measure the absorbance of the reaction solution at 760nm using a UV spectrophotometer. Calculate the polyphenol concentration in the extract according to the standard curve.

[0132] X=C*V* / (m*1000)*100

[0133] Where:

[0134] X —— content of polyphenols in the sample, mg / 100g;

[0135] C ——concentration of polyphenols in the extract, ug / mL;

[0136] m —— the mass of the sample, g;

[0137] V —— volume of extract, mL.

[0138] (8) Flavonoids

[0139] Extraction: Weigh 3.00 g of sample powder and add 25 ml of 70% acidic ethanol solution (adjust the pH to 2.7 with hydrochloric acid). Ultrasonic extraction at 40°C for 40 min. Centrifuge at 3500 r / min for 10 min at 4°C to extract the supernatant. Repeat the operation twice, combine the extracts and make up to 50 mL in a volumetric flask. Each sample was measured twice in parallel.

[0140] Drawing of flavonoid standard curve: The flavonoid content was determined by colorimetry. Accurately weigh 15 mg of rutin, dissolve it in 70% ethanol acid solution and dilute it to a 100 mL volumetric flask, shake it well and set aside, which is the rutin standard solution. Accurately pipette 0, 0.5, 1, 2, 3 and 4 mL of the standard solution into a 10 mL colorimetric tube, add 70% ethanol acid solution to 5 mL, add 0.3 mL5% NaNO2 and let it stand for 5 min, then add 0.3 mL 10% AlCl3 to react for 6 min, then add 2 mL1 mol / L NaOH, add water to dilute to 10 mL, measure the absorbance value at a wavelength of 510 nm, and establish a standard curve.

[0141] (9) Reducing sugar

[0142] Extraction: Weigh 3.00 g of sample powder and add 25 mL of ultrapure water. Ultrasonic extraction was performed for 15 min. Centrifugation was performed at 3500 r / min for 10 min at 4°C to extract the supernatant. The operation was repeated twice to combine the extracts and make up to 50 mL in a volumetric flask. Each sample was measured twice in parallel.

[0143] Drawing of reducing sugar standard curve: The reducing sugar content was determined by colorimetry. Weigh 0.5 g of glucose and place it in a 105°C oven for 1.5 h, then accurately weigh 0.1 g of dried glucose, dissolve it in ultrapure water and dilute to 100 mL, shake well for later use, which is 1 mg / mL glucose standard solution. Accurately pipette 0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2 mL of the standard solution into a 10 mL stoppered test tube, add ultrapure water to 2 mL, add 4 mL of DNS reagent, heat in a boiling water bath for 5 min, immediately place in a cold water bath to cool, dilute to 10 mL after reaching room temperature, shake well, and measure the absorbance value at a wavelength of 540 nm to establish a standard curve.

[0144] (10) Weight loss rate

[0145] The weight loss rate (W) is the percentage of the reduced mass of vegetables to the initial mass, and the calculation formula is as follows:

[0146] ;

[0147] Where:

[0148] i-number of parallels;

[0149] n - number of test days;

[0150] W-weight loss rate;

[0151] T ni -The mass of the test vegetable after being stored in the test sample for n days, g.

[0152] Based on the hardware structure and principle of the refrigerator in the above-mentioned embodiment, various embodiments of the control method of the refrigerator of the present application are respectively proposed below.

[0153] like Figure 5 As shown, Figure 5 It is a flowchart of a refrigerator control method provided by an embodiment of the present application; the refrigerator control method may include but is not limited to step S510, step S520 and step S530.

[0154] Step S510: Determine the target mode.

[0155] Step S520: determine target light radiation doses of the first lamp and the second lamp according to the target mode.

[0156] Step S530: driving the first lamp and the second lamp to irradiate the target food based on the target light radiation dose, and driving the third lamp to irradiate the target food according to the preset light radiation dose.

[0157] In one embodiment, first, when the refrigerator is provided with a growth drawer, and the first lamp, the second lamp and the third lamp are provided inside the growth drawer, the embodiment of the present application will determine the target mode; then, the target light radiation dose of the first lamp and the second lamp is determined according to the target mode; then, the embodiment of the present application will drive the first lamp and the second lamp to irradiate the target food based on the target light radiation dose, and drive the third lamp to irradiate the target food according to the preset light radiation dose. Since blue light, UVB and red light can all increase the anthocyanin content of berries, red light can increase the chlorophyll and carotenoid content of green vegetables, UVB can increase the lycopene content of tomatoes, the phenolic compounds in fruits and vegetables, and the vitamin D content in mushrooms, therefore, the embodiment of the present application can achieve the function of improving the nutrition of stored fruits and vegetables while extending the shelf life when the second lamp, the first lamp and the third lamp cooperate with each other for irradiation.

[0158] It can be understood that the embodiments of the present application, in combination with the synergistic effect of blue light and red light, can not only have the effect of preserving freshness, but also can increase the content of anthocyanins, chlorophyll, carotenoids, polyphenols, flavonoids, lycopene, vitamin C, vitamin A, folic acid, mushroom polysaccharides or mushroom vitamin D in fruits, vegetables and mushrooms.

[0159] In one embodiment, first, when the refrigerator is provided with a growth drawer, and the first, second and third lamps are provided inside the growth drawer, the embodiment of the present application will determine a target mode; then, the target illumination duration of the first and second lamps is determined according to the target mode; then, the embodiment of the present application will drive the first and second lamps to irradiate the target food based on the target illumination duration, and drive the third lamp to irradiate the target food according to the preset illumination duration. Since blue light, UVB and red light can all increase the anthocyanin content of berries, red light can increase the chlorophyll and carotenoid content of green vegetables, and UVB can increase the lycopene content of tomatoes, the phenolic compounds in fruits and vegetables, and the vitamin D content in mushrooms, the embodiment of the present application can achieve the function of improving the nutrition of stored fruits and vegetables while extending the shelf life when the second lamp, the first lamp and the third lamp cooperate with each other for irradiation.

[0160] In one embodiment, the second lamp has a wavelength range of 350 to 500 nm and a light intensity range of 1.0 to 1.5. , the lighting duration range is 2 to 4h / d.

[0161] The wavelength range of the first lamp is 620 to 750 nm, and the intensity range is 0.3 to 0.6 , the lighting duration range is 2 to 4h / d.

[0162] The wavelength of the third lamp is between 280 and 320 nm, and the intensity is between 10 and 100 nm. , the lighting duration range is 3 to 10min / d.

[0163] It should be noted that the wavelength range of the light used is 350 to 500 nm, and the light intensity range is 1.0 to 1.5 The blue light with a light duration of 2 to 4 h / d can regulate the expression of antioxidant genes and increase the content of anthocyanins, polyphenols and other nutrients during storage. The light wavelength range is 620 to 750 nm and the light intensity range is 0.3 to 0.6 The red light with a light duration of 2 to 4 h / d can activate chemical synthesis and chlorophyll synthase activity, and promote the synthesis of chlorophyll and carotenoids; the light wavelength range is 280 to 320 nm, and the light intensity range is 10 to 100 , UVB light with a lighting duration of 3 to 10 min / d can activate the ergosterol in mushrooms to convert into vitamin D. And it ensures that the quality of the food is not affected while improving the nutrients.

[0164] It should be noted that the target light radiation dose is obtained by the light intensity and the illumination duration. The light radiation dose is obtained by multiplying the light intensity by the illumination duration. The target light radiation dose of the first lamp is obtained by multiplying the light intensity of the first lamp by the illumination duration of the first lamp. The target light radiation dose of the second lamp is obtained by multiplying the light intensity of the second lamp by the illumination duration of the second lamp.

[0165] It should be noted that the light radiation dose of the third lamp is determined by a preset light radiation dose, so that the light radiation dose range can be more reasonable.

[0166] It should be noted that the daily light radiation dose of the third lamp is fixed, and an upper limit value is set for the daily light radiation dose of the third lamp to avoid poisoning.

[0167] In one embodiment, after the refrigerator is turned on, the third lamp can be turned off after running to reach a preset light radiation dose. After the subsequent mode is selected, only the red light and the second lamp will be driven to illuminate the fruits and vegetables, and the third lamp will no longer be driven to illuminate, thereby avoiding poisoning due to excessive light radiation dose from the third lamp.

[0168] In one embodiment, determining the target mode in step S510 includes one of the following:

[0169] The target food is identified by the identification component inside the growth drawer, the food category of the target food is determined, and the corresponding general mode is determined according to the food category;

[0170] Receive a mode selection instruction input by a user, and determine a corresponding general mode according to the mode selection instruction.

[0171] It should be noted that, in the process of receiving the mode selection instruction input by the user, the user can choose to select the desired general mode by pressing the buttons on the refrigerator display screen; the user can also input the selected general mode by voice input to the sound collector for collection, and then process it through the voice control processing system of the refrigerator. After receiving the instruction, the system executes the general mode selected by the user; the user can preset the gesture corresponding to the general mode before selecting the general mode, and when selecting the general mode, the gesture corresponding to the previously preset can be used to make the selection.

[0172] In one embodiment, the general mode includes a mixed mode, a fruit mode or a vegetable mode, wherein the light radiation dose of the second lamp in the fruit mode is greater than that in the mixed mode, the light radiation dose of the first lamp in the vegetable mode is greater than that in the mixed mode, blue light can increase the anthocyanin content of berries, and red light can increase the chlorophyll and carotenoid content of green vegetables.

[0173] See also Figure 6 , Figure 6 This is an operation flow chart of the fruit mode provided by an embodiment of the present application. The operation flow of the fruit mode includes but is not limited to step S610, step S620, step S630, step S640, step S650 and step S660.

[0174] Step S610, manually select a button or intelligently identify only fruits to start the fruit mode.

[0175] Step S620: Turn on the display panel light.

[0176] Step S630, the four second lamps operate for 2 minutes, then the four second lamps and the two first lamps operate together for 10 minutes, and then the whole is kept dark for 50 minutes, and the cycle is repeated.

[0177] Step S640: Manually select a button or intelligently identify ingredients other than fruits to turn off the fruit mode.

[0178] Step S650: Turn off the display panel light.

[0179] Step S660: both the first light and the second light are turned off.

[0180] In one embodiment, when the growth drawer is identified as a fruit mode, the operating time of the second lamp is greater than that of the first lamp. The blue light emitted by the second lamp can increase the anthocyanin content of berries. Increasing the operating time of the second lamp can improve the nutrition of stored fruits.

[0181] Figure 7 It is an operation flow chart of the vegetable mode provided by an embodiment of the present application; the operation flow of the vegetable mode includes but is not limited to step S710, step S720, step S730, step S740, step S750 and step S760.

[0182] Step S710, manually select a button or intelligently identify only vegetables to start the vegetable mode.

[0183] Step S720: Turn on the display panel light.

[0184] Step S730, the two first lamps operate for 2 minutes, then the four second lamps and the two first lamps operate together for 10 minutes, and then the whole is kept dark for 50 minutes, and the cycle is repeated.

[0185] Step S740: Manually select a button or intelligently identify ingredients other than vegetables to turn off the vegetable mode;

[0186] Step S750: Turn off the display panel light.

[0187] Step S760: both the first light and the second light are turned off.

[0188] In one embodiment, when the growth drawer is identified as a vegetable mode, the operating time of the first lamp is greater than the operating time of the second lamp. The red light emitted by the first lamp can increase the chlorophyll and carotenoid content of green vegetables. Increasing the operating time of the first lamp can improve the nutrition of stored vegetables.

[0189] Figure 8 It is an operation flow chart of the hybrid mode provided by an embodiment of the present application; the operation flow of the hybrid mode includes but is not limited to step S810, step S820, step S830, step S840, step S850 and step S860.

[0190] Step S810, manually select a button or intelligently identify that fruits and vegetables are mixed or there are other ingredients, and start the mixing mode;

[0191] Step S820: Turn on the display panel light.

[0192] Step S830, the four second lamps and the two first lamps are operated together for 10 minutes, and then the whole is kept in darkness for 50 minutes, and the cycle is repeated.

[0193] Step S840: Manually select a button or intelligently identify ingredients that are only fruits or vegetables to turn off the mixed mode.

[0194] Step S850: Turn off the display panel light.

[0195] Step S860: both the first light and the second light are turned off.

[0196] Fig. 9 This is an operation logic diagram of UVB provided by an embodiment of the present application.

[0197] When the refrigerator is powered on and in general mode, when it is detected that the total running time of the first lamp and the second lamp is less than 20 minutes, UVB will not perform any operation. When it is detected that the total running time of the first lamp and the second lamp is greater than or equal to 20 minutes, the third lamp will turn on for 10 minutes and then turn off, and the cycle will be repeated after 23 hours and 50 minutes.

[0198] In one embodiment, when the refrigerator is powered on and in general mode, it intelligently recognizes that only fruits are placed in the storage chamber, starts the fruit mode, and then the display panel light turns on. Then the four second lights run for 2 minutes first, and then the four second lights and the two first lights run for 10 minutes together, and then the whole remains dark for 50 minutes. At this time, the total duration of the first and second lights is 12 minutes and less than 20 minutes. The third light does not perform any operation. Then the four second lights run for another 2 minutes, and then the four second lights and the two first lights run for another 10 minutes together, and then the whole remains dark for 50 minutes. At this time, the total duration of the first and second lights is 24 minutes, which is greater than 20 minutes. At this time, the third light is on for 10 minutes and then turned off, and the cycle is repeated after 23 hours and 50 minutes.

[0199] In one embodiment, when the refrigerator is powered on and in general mode, the intelligent system recognizes that only fruits are placed in the storage chamber, starts the fruit mode, and then turns on the display panel lights. Then, the four second lights run for 2 minutes, and then the four second lights and the two first lights run for 10 minutes. Then, the whole is kept dark for 50 minutes. At this time, the total duration of the first and second lights is 12 minutes and less than 20 minutes. The third light does not perform any operation. At this time, vegetables are put in. The intelligent system recognizes that food materials other than fruits are placed in the storage chamber. The fruit mode is turned off, the display panel lights are turned off, and the first and second lights are turned off. At this time, the intelligent system recognizes that fruits and vegetables are placed in the storage chamber, starts the mixed mode, turns on the display panel lights, and the four second lights and the two first lights run for 10 minutes. Then, the whole is kept dark for 50 minutes. At the same time, the total duration of the first and second lights is 22 minutes, which is greater than 20 minutes. At this time, the third light is on for 10 minutes and then turns off. After 23 hours and 50 minutes, the cycle is repeated.

[0200] In one embodiment, when the refrigerator is powered on and in general mode, it is intelligently identified that fruits and vegetables are placed in the storage chamber, and the mixed mode is started. The display panel light is turned on, and the four second lights and the two first lights run together for 10 minutes, and then the whole is kept dark for 50 minutes. At this time, the total duration of the first and second lights is 12 minutes and less than 20 minutes. The third light does not perform any operation, and the four second lights and the two first lights run together for 10 minutes, and then the whole is kept dark for 50 minutes. At this time, the total duration of the first and second lights is 20 minutes, which is equal to the set 20 minutes. At this time, the third light is on for 10 minutes and then turned off, and the cycle is repeated after 23 hours and 50 minutes.

[0201] In one embodiment, when the illumination intensities of the second lamp in the fruit mode and the mixed mode are the same, the illumination duration of the second lamp in the fruit mode is greater than the illumination duration in the mixed mode.

[0202] When the illumination intensities of the first lamp in the vegetable mode and the mixed mode are consistent, the illumination duration of the first lamp in the vegetable mode is greater than that in the mixed mode.

[0203] In one embodiment, when the illumination intensity of the second lamp in the fruit mode and the mixed mode is the same, the illumination time of the second lamp in the fruit mode is 12 minutes, and the illumination time of the second lamp in the mixed mode is 10 minutes, so the illumination time of the second lamp in the fruit mode is longer than that in the mixed mode; when the illumination intensity of the first lamp in the vegetable mode and the mixed mode is the same, the illumination time of the first lamp in the vegetable mode is 12 minutes, and the illumination time of the first lamp in the mixed mode is 10 minutes, so the illumination time of the first lamp in the vegetable mode is longer than that in the mixed mode. By adjusting the illumination time of the second lamp and the first lamp in different modes, the function of accurately improving the storage of nutrition of fruits, vegetables or mixed fruits and vegetables while extending the shelf life can be achieved.

[0204] In one embodiment, determining the target mode includes: identifying the target food by an identification component inside the growth drawer, determining the food name of the target food, and determining the corresponding personalized mode according to the food name, wherein different food names correspond to different target light radiation doses of the first lamp, and correspond to different target light radiation doses of the second lamp.

[0205] In one embodiment, the target food is identified by an identification component inside the growth drawer. When the target food is identified as blueberry, the corresponding blueberry mode is determined based on the blueberry, wherein the target light radiation dose of the first lamp corresponding to the blueberry mode and the target light radiation dose of the second lamp corresponding to the blueberry mode are both preset values.

[0206] In one embodiment, the target food is identified by an identification component inside the growth drawer. When the target food is identified as onion, the corresponding onion mode is determined according to the onion, wherein the target light radiation dose of the first lamp corresponding to the onion mode and the target light radiation dose of the second lamp corresponding to the onion mode are both preset values.

[0207] In one embodiment, when the second lamp, the first lamp and the third lamp of the present application cooperate with each other for illumination, the function of improving the nutrition of stored fruits and vegetables while extending the shelf life can be achieved. For example, the polyphenol and flavonoid content of peaches as a fruit can be increased by 42.15% and 41.21% respectively under the scheme of this embodiment, the polysaccharide content of matsutake mushrooms as a mushroom can be increased by 57.45% under the scheme of this embodiment, and the content of VC, chlorophyll, carotenoids and polyphenols of spinach as a vegetable can be increased to a certain extent under the scheme of this embodiment, with the increase rates being 22.70%, 30.20%, 29.29% and 24.73% respectively.

[0208] In one embodiment, onion is a vegetable ingredient and will be illuminated with enhanced red light in the general mode, but its nutrient is anthocyanin, so the corresponding blue light should be enhanced. Therefore, the corresponding personalized mode is determined according to the name of the ingredient, which can be more suitable for certain fruits and vegetables.

[0209] In one embodiment, the target food is identified by an identification component inside the growth drawer. When the target food is identified as matsutake, the corresponding matsutake mode is determined according to the matsutake, wherein the target light radiation dose of the first lamp corresponding to the matsutake mode and the target light radiation dose of the second lamp corresponding to the matsutake mode are both preset values.

[0210] In one embodiment, identifying the target food by an identification component inside the growth drawer to determine the food category of the target food includes one of the following:

[0211] The target food is photographed by a camera to obtain a photographed image, and the food category of the target food is determined according to the image data of the target food in the photographed image;

[0212] The target food is imaged by a hyperspectral or multispectral imaging device to obtain a spectral image, and the food category of the target food is determined based on the spectral data of the target food in the spectral image.

[0213] It can be understood that, first, a food material database is established, and after receiving an instruction to identify the type of food material, the camera is started to obtain the captured image, and the captured image is compared with the food material image database to obtain the first type information and the first recognition rate, and it is determined whether the first recognition rate is higher than the preset first threshold value. If so, the first type information is output to obtain the food material category of the target food material, and if not, the captured image is compared with the food material image database to obtain the second type information and the second recognition rate, and it is determined whether the second recognition rate is higher than the preset second threshold value, and if so, the second type information is output to obtain the food material category of the target food material, and if not, the identification of the food material category of the target food material fails. When the output of the food material category of the target food material fails, the user can add the food material category of the target food material to the food material database.

[0214] It can be understood that after receiving the instruction to identify the type of food, the hyperspectral imaging device is started to obtain the high light data obtained by shooting, the hyperspectral data is preprocessed, and the image data and the spectral data are extracted respectively to obtain the image data and the spectral data; the type of food is identified according to the image data, and the third type information and the third recognition rate are obtained; it is determined whether the third recognition rate is higher than the third threshold value set in advance; if so, the third type information is output; if not, the type of food is identified according to the spectral data, and the fourth type information and the fourth recognition rate are obtained; it is determined whether the fourth recognition rate is higher than the fourth threshold value set in advance; if so, the fourth type information is output; if not, the identification of the type of food fails. When the output of the food category of the target food fails, the user can add the food category of the target food to the food database.

[0215] It can be understood that after receiving the instruction to identify the type of food, the multispectral imaging device is started to obtain the multi-light data obtained by shooting, the multispectral data is pre-processed, and the image data and the spectral data are extracted respectively to obtain the image data and the spectral data; the type of food is identified according to the image data, and the fifth type of information and the fifth recognition rate are obtained; it is determined whether the fifth recognition rate is higher than the preset fifth threshold; if so, the fifth type of information is output; if not, the type of food is identified according to the spectral data, and the sixth type of information and the third recognition rate are obtained; it is determined whether the sixth recognition rate is higher than the preset fifth threshold; if so, the sixth type of information is output; if not, the identification of the type of food fails. When the output of the food category of the target food fails, the user can add the food category of the target food to the food database.

[0216] In one embodiment, driving the third lamp to irradiate the food according to a preset light radiation dose includes: obtaining a preset light radiation dose of the third lamp; and driving the third lamp to irradiate the target food according to the preset light radiation dose.

[0217] It should be noted that the preset light radiation dose of the third lamp is a value obtained through experiments, and the preset light radiation dose will not cause poisoning.

[0218] In one embodiment, the preset light radiation dose in step S530 is determined by at least one of the following steps:

[0219] Obtaining a first variation trend of the appearance of food of a preset category with respect to radiation dose, and determining a preset light radiation dose according to the first variation trend;

[0220] Obtaining a second variation trend of the weight loss rate of a preset category of food as a function of radiation dose, and determining a preset light radiation dose according to the second variation trend;

[0221] A third variation trend of the nutrient enhancement rate of a preset category of food with respect to the radiation dose is obtained, and a preset light radiation dose is determined according to the third variation trend.

[0222] In one embodiment, the preset light radiation dose is greater than or equal to 0.36 and less than or equal to 1.42 .

[0223] See also Fig.10 , Fig.10 This is a bar graph of the effect of UVB radiation dose on VD2 enrichment provided in one embodiment of the present application.

[0224] It should be noted that when the UVB radiation dose is less than 1.42 When the UVB radiation dose is greater than or equal to 1.42 When the UVB radiation dose is less than 0.36 Although it is effective in improving other nutrients, There is almost no effect of enhancement, so in order to make more comprehensive nutrients have an enhancement effect, it is necessary to ensure that the light radiation dose is greater than 0.36 .

[0225] It should be noted that the preset category of ingredients is leafy vegetables. It is more appropriate to use leafy vegetables as experimental ingredients because the appearance of leafy vegetables changes more obviously. If fruits are used as experimental ingredients, the preset light radiation dose measured may be higher. In actual use, if the preset light radiation dose measured by fruits is used on leafy vegetables, the appearance of the leafy vegetables may shrink severely.

[0226] like Figure 11-12 As shown, Fig.11 is a bar graph of UVB radiation dose versus lettuce weight loss rate provided by an embodiment of the present application; Fig.12 This is a curve chart of the UVB radiation dose and the nutrient enhancement rate of lettuce provided in an embodiment of the present application.

[0227] When the UVB radiation dose is 0.71 and UVB radiation dose of 4.73 When the UVB radiation dose was 4.73, the corresponding weight loss rates of lettuce were 5.06% and 4.94% respectively. These two UVB radiation doses had little effect on the weight loss rate of lettuce. When the lettuce is exposed to UVB, the surface will be damaged, causing discoloration, shrinkage and other undesirable phenomena, affecting the preservation effect. The UVB radiation dose was 0.71 The cost of lighting is lower and resources are saved.

[0228] The UVB radiation dose is 0 to 5 During the illumination of lettuce, the increase rate of chlorophyll and carotenoids showed a trend of first increasing and then decreasing with the increase of radiation dose, and finally tended to be flat. The increase rate of chlorophyll and carotenoids was at a UVB radiation dose of 0.71. The peak value is reached when the radiation dose gradually increases. Therefore, the corresponding nutrient content of lettuce shows a trend of first increasing and then decreasing. It reaches its peak value, at which time the nutritional rate of lettuce is the highest.

[0229] See also Fig.13 , Fig.13 This is a data graph of the results of intelligent photon enhancement provided by an embodiment of the present application.

[0230] In the embodiments of the present application, the anthocyanin in the strawberry of the fruit food material is increased by more than 200% after 7 days of intelligent light quantum growth, the chlorophyll and carotenoid in the lettuce of the vegetable food material is increased by more than 40% after 7 days of intelligent light quantum growth, the VC in the yellow pepper of the vegetable food material is increased by more than 50% after 7 days of intelligent light quantum growth, the VD in the bamboo fungus of the fungus food material is increased by more than 500%, the total phenol is increased by more than 20% after 7 days of intelligent light quantum growth, and the mushroom polysaccharide of the fungus food material is increased by more than 50% after 7 days of intelligent light quantum growth. It can be seen that after 7 days of intelligent light quantum growth, some nutritional indicators in fruits, vegetables and fungus food materials have been improved to a certain extent, while preserving freshness, promoting the improvement of antioxidant active ingredients, realizing the function of improving the storage of fruits and vegetables while extending the shelf life.

[0231] Based on the refrigerator control method of each of the above-mentioned embodiments, various embodiments of the controller, refrigerator, computer-readable storage medium and computer program product of the present application are respectively proposed below.

[0232] like Fig.14 As shown, Fig.14 14 is a schematic diagram of a controller for executing a refrigerator control method provided by an embodiment of the present application. The controller 1400 implemented in the present application includes: a processor 1410, a memory 1420, and a computer program stored in the memory 1420 and executable on the processor 1410, wherein: Fig.14 In the figure, a processor 1410 and a memory 1420 are taken as an example.

[0233] The processor 1410 and the memory 1420 may be connected via a bus or other means. Fig.14 The example of connecting through bus is taken in the following.

[0234] The memory 1420, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 1420 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 1420 may optionally include a memory 1420 remotely arranged relative to the processor 1410, and these remote memories 1420 may be connected to the controller 1400 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0235] Those skilled in the art will understand that Fig.14 The device structure shown in the figure does not constitute a limitation on the controller 1400, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0236] exist Fig.14 In the controller 1400 shown, the processor 1410 can be used to call the control program stored in the memory 1420, so as to implement the above-mentioned refrigerator control method. Specifically, the non-transient software program and instructions required to implement the refrigerator control method of the above-mentioned embodiment are stored in the memory 1420, and when executed by the processor 1410, the refrigerator control method of the above-mentioned embodiment is executed.

[0237] It is worth noting that since the controller 1400 of the embodiment of the present application can execute the control method of the refrigerator of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the controller 1400 of the embodiment of the present application can refer to the specific implementation manner and technical effects of the control method of the refrigerator of any of the above-mentioned embodiments.

[0238] In addition, an embodiment of the present application also provides a refrigerator, which includes the controller of the above embodiment.

[0239] It is worth noting that since the refrigerator of the embodiment of the present application includes the controller of the above-mentioned embodiment, and the controller of the above-mentioned embodiment can execute the control method of the refrigerator of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the refrigerator of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the refrigerator of any of the above-mentioned embodiments.

[0240] In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the above-described refrigerator control method. Figures 5 to 9 The method steps in .

[0241] It is worth noting that since the computer-readable storage medium of the embodiment of the present application can execute the refrigerator control method of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer-readable storage medium of the embodiment of the present application can refer to the specific implementation methods and technical effects of the refrigerator control method of any of the above-mentioned embodiments.

[0242] In addition, an embodiment of the present application further provides a computer program product, including a computer program or a computer instruction, the computer program or the computer instruction is stored in a computer-readable storage medium, the processor of the computer device reads the computer program or the computer instruction from the computer-readable storage medium, and the processor executes the computer program or the computer instruction, so that the computer device executes the above-described refrigerator control method. Figures 5 to 9 The method steps in .

[0243] It is worth noting that since the computer program product of the embodiment of the present application can execute the refrigerator control method of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer program product of the embodiment of the present application can refer to the specific implementation methods and technical effects of the refrigerator control method of any of the above-mentioned embodiments.

[0244] It will be appreciated by those skilled in the art that all or some of the steps and systems in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0245] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0246] In several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of units is only a logical function division, and 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 interfaces, indirect coupling or communication connection of apparatuses or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0247] It should also be understood that the various implementations provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.

[0248] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A refrigerator control method, characterized in that: The refrigerator is provided with a nutrition-enhancing drawer, and a first lamp, a second lamp, and a third lamp are provided inside the nutrition-enhancing drawer, wherein the first lamp is an LED lamp that generates red light, the second lamp is an LED lamp that generates blue light, and the third lamp is an LED lamp that generates UVB. The method comprises: determining a target mode, wherein the target mode includes a vegetable mode or a fruit mode; determining target light radiation doses of the first lamp and the second lamp according to the target pattern; driving the first lamp and the second lamp to irradiate the target food based on the target light radiation dose, and driving the third lamp to irradiate the target food according to a preset light radiation dose; in: When the target mode is the vegetable mode, during the process of the first lamp and the second lamp irradiating the target food, the first lamp is first operated for irradiation, and then the first lamp and the second lamp are operated together for irradiation, and then the whole is kept dark, and the cycle is performed, wherein the operating time of the first lamp is greater than the operating time of the second lamp; When the target mode is the fruit mode, during the process of the first lamp and the second lamp irradiating the target food, the second lamp is operated first to irradiate, and then the second lamp and the first lamp are operated together to irradiate, and then the whole is kept dark, and the cycle is performed, wherein the operating time of the second lamp is greater than the operating time of the first lamp.

2. The method according to claim 1, characterized in that: The target mode is determined, including one of the following: Identify the target food through the identification component inside the growth drawer, determine the food category of the target food, and determine the corresponding general mode according to the food category; A mode selection instruction input by a user is received, and a corresponding general mode is determined according to the mode selection instruction.

3. The method according to claim 2, characterized in that The general mode includes a mixed mode, a fruit mode or a vegetable mode, wherein the light radiation dose of the second lamp in the fruit mode is greater than the light radiation dose in the mixed mode, and the light radiation dose of the first lamp in the vegetable mode is greater than the light radiation dose in the mixed mode.

4. The method according to claim 3, characterized in that include: When the illumination intensities of the second lamp in the fruit mode and the mixed mode are consistent, the illumination duration of the second lamp in the fruit mode is greater than the illumination duration in the mixed mode; When the illumination intensities of the first lamp in the vegetable mode and in the mixed mode are consistent, the illumination duration of the first lamp in the vegetable mode is greater than the illumination duration in the mixed mode.

5. The method according to claim 1, characterized in that The determining of the target mode comprises: The target food is identified by the identification component inside the growth drawer, the food name of the target food is determined, and the corresponding personalized mode is determined according to the food name, wherein different food names correspond to different target light radiation doses of the first lamp and to different target light radiation doses of the second lamp.

6. The method according to claim 5, characterized in that The identifying component in the nutrition-enhancing drawer identifies the target food and determines the food category of the target food, including one of the following: photographing the target food with a camera to obtain a photographed image, and determining the food category of the target food according to image data of the target food in the photographed image; The target food is imaged by a hyperspectral or multispectral imaging device to obtain a spectral image, and the food category of the target food is determined according to the spectral data of the target food in the spectral image.

7. The method according to claim 1, characterized in that The preset light radiation dose is determined by at least one of the following steps: Obtaining a first variation trend of the appearance of a preset category of food with respect to radiation dose, and determining a preset light radiation dose according to the first variation trend; Obtaining a second variation trend of the weight loss rate of a preset category of food as a function of radiation dose, and determining a preset light radiation dose according to the second variation trend; A third variation trend of the nutrient enhancement rate of a preset category of food with respect to radiation dose is obtained, and a preset light radiation dose is determined according to the third variation trend.

8. The method according to claim 7, characterized in that The preset light radiation dose is greater than or equal to 0.36 and less than or equal to 1.42 .

9. The method according to claim 8, characterized in that The preset light radiation dose is 0.71 .

10. The method according to claim 7, characterized in that The preset category of ingredients is leafy vegetables.

11. The method according to any one of claims 1 to 10, characterized in that include: The second lamp has a wavelength range of 380 to 500 nm and a light intensity range of 1.0 to 1.5 , the light duration range is 2 to 4h / d; The first lamp has a wavelength range of 620 to 750 nm and a light intensity range of 0.3 to 0.6 , the light duration range is 2 to 4h / d; The third lamp has a wavelength range of 280 to 320 nm and a light intensity range of 10 to 100 nm. , the lighting duration range is 3 to 10min / d.

12. A controller, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the refrigerator control method according to any one of claims 1 to 11 when executing the computer program.

13. A refrigerator, characterized in that: Comprising a controller as claimed in claim 12.

14. A computer-readable storage medium, characterized in that: Computer executable instructions are stored, and the computer executable instructions are used to execute the control method of the refrigerator as described in any one of claims 1 to 11.

15. A computer program product comprising a computer program or computer instructions, characterized in that The computer program or the computer instructions are stored in a computer-readable storage medium, and the processor of a computer device reads the computer program or the computer instructions from the computer-readable storage medium. The processor executes the computer program or the computer instructions, so that the computer device executes the refrigerator control method as described in any one of claims 1 to 11.

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