Refrigeration appliance sterilization control method, refrigeration appliance, and storage medium

Abstract

This application proposes a sterilization control method for a refrigeration device, a refrigeration device, and a storage medium. The method includes: activating a pulsed light module based on a first electrical parameter to illuminate food, wherein the first electrical parameter is less than a preset pulsed sterilization electrical parameter; detecting microbial information on the surface of the food using a snapshot hyperspectral module while the pulsed light module is illuminating the food; and controlling the pulsed light module based on a second electrical parameter according to the microbial information to generate pulsed light to irradiate and sterilize the food surface. In this application embodiment, the pulsed light module provides a light source to the snapshot hyperspectral module for illumination during detection before the snapshot hyperspectral module detects microorganisms. After detecting microbial information on the food surface, the pulsed light module provides a light source to irradiate and sterilize the food surface, achieving the sharing of the same light source for illumination and sterilization, thereby achieving low-cost sterilization while improving the sterilization effect.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a sterilization control method for refrigeration equipment, refrigeration equipment, and storage medium. Background Technology

[0002] Currently, the sterilization function is turned on and off using fixed control logic, which means that the function may not be turned on when sterilization is needed. Moreover, regardless of the amount of microorganisms in the food, the same working mode is used, resulting in poor sterilization effect. While hyperspectral imaging technology can be used to detect microorganisms in food, it requires a separate light source to ensure that the hyperspectral sensor can receive light containing food feature information. However, the miniaturization, cost, and structural complexity of the light source lead to high costs. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a sterilization control method for refrigeration equipment, a refrigeration device, and a storage medium, aiming to achieve low-cost sterilization while improving the sterilization effect.

[0004] In a first aspect, embodiments of this application provide a sterilization control method for a refrigeration device, wherein a pulsed light module and a snapshot hyperspectral module are disposed within the functional space of the refrigeration device, and the functional space is used to place food ingredients; the method includes:

[0005] The pulsed light module is activated based on a first electrical parameter so that the pulsed light module illuminates the food, wherein the first electrical parameter is less than a preset pulse sterilization electrical parameter;

[0006] When the food is illuminated by the pulsed light module, the microbial information on the surface of the food is detected by the snapshot hyperspectral module;

[0007] Based on the microbial information, the pulsed light module is controlled according to the second electrical parameter so that the pulsed light module generates pulsed light to irradiate and sterilize the surface of the food, wherein the second electrical parameter is greater than or equal to the pulse sterilization electrical parameter.

[0008] According to some embodiments of this application, the step of detecting microbial information on the surface of the food ingredient using the snapshot hyperspectral module includes:

[0009] The snapshot hyperspectral module collects the spectral information reflected by the food ingredients;

[0010] The spectral information is input into a preset microbial analysis model, and the microbial information on the surface of the food is obtained by outputting the microbial information through the microbial analysis model. The microbial analysis model is trained by the sample microbial species, sample microbial concentration and sample spectral data.

[0011] According to some embodiments of this application, the microbial information includes a first microbial concentration; the step of controlling the pulsed light module based on the microbial information and a second electrical parameter includes:

[0012] When the concentration of the first microorganism on the surface of the food is greater than or equal to a preset concentration threshold, the pulse light module is controlled to operate for a preset duration with the second electrical parameter, so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

[0013] According to some embodiments of this application, after controlling the pulsed light module to operate for a preset duration with the second electrical parameter, the method further includes:

[0014] Based on the first electrical parameter, the pulsed light module is controlled to illuminate the food again, and the second microbial concentration on the surface of the food is detected again by the snapshot hyperspectral module.

[0015] When the concentration of the second microorganism is greater than or equal to the preset concentration threshold, the pulsed light module is controlled to operate with the second electrical parameters.

[0016] The pulsed light module is turned off once the concentration of the second microorganism is less than the preset concentration threshold.

[0017] According to some embodiments of this application, the microbial information further includes microbial species; the method further includes:

[0018] The food type is identified using the snapshot hyperspectral module;

[0019] Based on the type of food and the type of microorganism, determine the interaction relationship between the food and the microorganisms attached to the surface of the food;

[0020] The working state of the pulsed light module is controlled according to the interaction relationship.

[0021] According to some embodiments of this application, controlling the operating state of the pulsed light module based on the interaction relationship includes one of the following:

[0022] When it is determined that the microorganisms attached to the surface of the food are harmful to the food, and the concentration of the first microorganism is greater than or equal to a preset concentration threshold, the pulse light module is controlled to operate for a preset duration with the second electrical parameter, so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

[0023] When it is determined that the microorganisms attached to the surface of the food are beneficial to the food and harmless to the human body, the pulse light module is turned off.

[0024] According to some embodiments of this application, activating the pulsed light module based on a first electrical parameter includes:

[0025] Identify the door status of the refrigeration equipment;

[0026] When the door of the refrigeration equipment is closed, the pulse light module is activated based on the first electrical parameter.

[0027] According to some embodiments of this application, there is an overlap between the wavelength range of the illumination light of the pulsed light module on the food and the wavelength range of the pulsed light.

[0028] According to some embodiments of this application, the wavelength range of the illumination light of the pulsed light module on the food is the visible light band range, and the wavelength range of the pulsed light includes the ultraviolet light band range, the visible light band range, and the infrared light band range.

[0029] According to some embodiments of this application, the pulsed light includes:

[0030] The peak intensity of the pulsed light in the ultraviolet band is greater than a first preset threshold.

[0031] The peak light intensity of the pulsed light in the visible light band is greater than a second preset threshold.

[0032] The peak intensity of the pulsed light in the infrared band is greater than a third preset threshold.

[0033] According to some embodiments of this application, the first electrical parameter, the second electrical parameter, and the pulse sterilization electrical parameter include one of the following: voltage parameter and current parameter.

[0034] Secondly, embodiments of this application provide a refrigeration device for performing the sterilization control method of the refrigeration device described in any one of the first aspects above. The refrigeration device is provided with a functional space for placing food ingredients, and the functional space is provided with a pulse light module and a snapshot hyperspectral module.

[0035] According to some embodiments of this application, the pulsed light module is installed at the top center of the functional space, and the snapshot hyperspectral module is installed at the side of the functional space. The snapshot hyperspectral module and the pulsed light module are placed parallel to each other, and the detection direction of the snapshot hyperspectral module faces the functional space.

[0036] Thirdly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions for performing the sterilization control method of the refrigeration device as described in the first aspect above.

[0037] Fourthly, embodiments of this application provide a computer program product, including a computer program or computer instructions, characterized in that the computer program or computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium, and the processor executes the computer program or computer instructions, causing the computer device to perform the sterilization control method of the refrigeration device as described in the first aspect above.

[0038] According to the technical solution of the embodiments of this application, at least the following beneficial effects are achieved: The functional space of the refrigeration equipment in the embodiments of this application is provided with a pulsed light module and a snapshot hyperspectral module, and the functional space is used to place food ingredients; the method includes: activating the pulsed light module based on a first electrical parameter to illuminate the food ingredients, wherein the first electrical parameter is less than a preset pulse sterilization electrical parameter; while the pulsed light module illuminates the food ingredients, detecting microbial information on the surface of the food ingredients using the snapshot hyperspectral module; controlling the pulsed light module based on a second electrical parameter according to the microbial information, so that the pulsed light module generates pulsed light to irradiate and sterilize the surface of the food ingredients, wherein the second electrical parameter is greater than or equal to the pulse sterilization electrical parameter. In the embodiments of this application, before the snapshot hyperspectral module detects microorganisms, the pulsed light module provides a light source to the snapshot hyperspectral module for illumination during detection; after detecting microbial information on the surface of the food ingredients, the pulsed light module provides a light source to irradiate and sterilize the surface of the food ingredients, realizing the sharing of the same light source for illumination and sterilization, thereby achieving low-cost sterilization while improving the sterilization effect.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0041] Figure 1 This is a schematic diagram of the structure of a refrigeration device provided in one embodiment of this application;

[0042] Figure 2 This is a schematic diagram showing the position of a hyperspectral sensor disposed on the upper side of a functional space according to an embodiment of this application;

[0043] Figure 3 This is a schematic diagram showing the position of a hyperspectral sensor provided in one embodiment of this application, located on the right side of the functional space;

[0044] Figure 4 This is a schematic diagram showing the position of a hyperspectral sensor disposed on the lower side of a functional space according to an embodiment of this application;

[0045] Figure 5 This is a schematic diagram showing the position of a hyperspectral sensor disposed on the left side of a functional space according to an embodiment of this application;

[0046] Figure 6 This is a flowchart of a sterilization control method for a refrigeration device provided in one embodiment of this application;

[0047] Figure 7 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application;

[0048] Figure 8 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application;

[0049] Figure 9 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application;

[0050] Figure 10 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application;

[0051] Figure 11 This is an overall flowchart of a sterilization control method for a refrigeration device provided in one embodiment of this application;

[0052] Figure 12 This is a schematic diagram of a controller for performing a sterilization control method for a refrigeration device according to an embodiment of this application. Detailed Implementation

[0053] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0054] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0056] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0057] In some cases, the sterilization function is still turned on and off using fixed control logic. As a result, the function may not be turned on when sterilization is required. Moreover, regardless of the amount of microorganisms in the food, the same working mode is used, which leads to poor sterilization effect. At the same time, hyperspectral imaging technology can be used to detect microorganisms in food, but it requires a separate light source to ensure that the hyperspectral sensor can receive light containing food feature information. However, the miniaturization, cost, and structural complexity of the light source lead to high cost.

[0058] Based on the above, this application proposes a sterilization control method for refrigeration equipment, refrigeration equipment, and storage medium, aiming to achieve low-cost sterilization while improving the sterilization effect.

[0059] The various embodiments of the refrigeration equipment of this application will be further described below with reference to the accompanying drawings.

[0060] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a refrigeration device provided in one embodiment of this application.

[0061] In one embodiment, the functional space 110 of the refrigeration device 100 is provided with a pulsed light module 120 and a snapshot hyperspectral module 130. The functional space 110 is used to place food ingredients. The functional space 110 can be a single drawer or the entire refrigerator compartment for placing food ingredients.

[0062] like Figures 2 to 5 As shown, Figure 2This is a schematic diagram showing the position of a hyperspectral sensor disposed on the upper side of a functional space according to an embodiment of this application; Figure 3 This is a schematic diagram showing the position of a hyperspectral sensor provided in one embodiment of this application, located on the right side of the functional space; Figure 4 This is a schematic diagram showing the position of a hyperspectral sensor disposed on the lower side of a functional space according to an embodiment of this application; Figure 5 This is a schematic diagram showing the position of a hyperspectral sensor provided in one embodiment of this application, located on the left side of the functional space.

[0063] In one embodiment, the pulsed light module 120 is installed at the top center of the functional space 110, and the snapshot hyperspectral module 130 is installed at the side of the functional space 110. The snapshot hyperspectral module 130 and the pulsed light module 120 are placed parallel to each other, and the detection direction of the snapshot hyperspectral module 130 faces the functional space 110.

[0064] In one embodiment, the snapshot hyperspectral module 130 includes a hyperspectral sensor 140, and the pulsed light module 120 includes a quantum pulse lamp 150.

[0065] In one embodiment, reference is made to Figure 2 The hyperspectral sensor 140 is positioned on the upper side of the functional space 110; see reference. Figure 3 The hyperspectral sensor 140 is located on the right side of the functional space 110; refer to Figure 4 The hyperspectral sensor 140 is positioned on the lower side of the functional space 110; see reference. Figure 5 The hyperspectral sensor 140 is located on the left side of the functional space 110.

[0066] Based on the hardware structure of the above embodiments, various embodiments of the sterilization control method for the refrigeration equipment of this application are presented below.

[0067] like Figure 6 As shown, Figure 6 This is a flowchart of a sterilization control method for a refrigeration device provided in one embodiment of this application; as shown below. Figure 6 As shown, the sterilization control method for refrigeration equipment provided in this application includes, but is not limited to, steps S610, S620 and S630. Each step will be described in turn below.

[0068] Step S610: Activate the pulse light module based on the first electrical parameter so that the pulse light module illuminates the food, wherein the first electrical parameter is less than the preset pulse sterilization electrical parameter;

[0069] Step S620: While illuminating the food with a pulsed light module, detect the microbial information on the surface of the food using a snapshot hyperspectral module;

[0070] Step S630: Control the pulsed light module based on the second electrical parameter according to the microbial information, so that the pulsed light module generates pulsed light to irradiate and sterilize the surface of the food, wherein the second electrical parameter is greater than or equal to the pulse sterilization electrical parameter.

[0071] In one embodiment, the first electrical parameter in step S610 to activate the pulsed light module is to illuminate the food so that the microbial information on the surface of the food can be detected by the snapshot hyperspectral module. This provides suitable lighting conditions for the snapshot hyperspectral module to detect the food. Therefore, the first electrical parameter is lower than the preset pulsed sterilization electrical parameter to avoid damage and waste to the food.

[0072] It should be noted that the system or user can set the preset pulse sterilization electrical parameters according to the actual situation, and this application embodiment does not impose specific restrictions.

[0073] In one embodiment, a snapshot hyperspectral module is used to quickly acquire microbial information on the surface of food under the illumination provided by a pulsed light module, thereby enabling the understanding of the types, quantities, and distribution of microorganisms on the food surface. This information on the types, quantities, and distribution of microorganisms also provides a basis for subsequent sterilization treatment.

[0074] It should be noted that the snapshot hyperspectral module can collect reflectance spectral information of food surfaces at different wavelengths. Different microorganisms have different absorption and reflection characteristics of light. Therefore, by analyzing spectral information, it is possible to identify and distinguish the types of microorganisms on the food surface and estimate their quantity and distribution. For example, some bacteria have obvious absorption or reflection peaks at specific wavelengths. By detecting these characteristic peaks, the type of microorganism can be accurately identified as bacteria.

[0075] It should be noted that the microbial information obtained from the surface of the food can be microbial information from the surface of the food itself or microbial information from the surface of the food packaging. The snapshot hyperspectral module can automatically make this judgment during detection. Therefore, in one embodiment, step S630 controls the pulse light module based on the second electrical parameter according to the microbial information detected by the snapshot hyperspectral module, so that the pulse light module generates pulse light to effectively irradiate and sterilize the surface of the food, so as to achieve the food safety standard or the expected sterilization effect.

[0076] It should be noted that when the pulsed light module operates based on the second electrical parameter, the pulsed light it generates has higher energy and stronger bactericidal ability. The bactericidal mechanism of pulsed light mainly includes photochemical effect, photophysical effect, and photothermal effect. The photochemical effect refers to the synthesis of pyrimidine dimers by biomolecules in microbial cells after absorbing pulsed light, which hinders DNA self-replication and destroys the chemical and spatial structure of proteases, causing microorganisms to lose their activity. The photophysical effect is that when pulsed light acts on microorganisms, it causes structural damage to cells, increases cell permeability, and leads to microbial death. The photothermal effect is that after microorganisms absorb instantaneous high-energy pulsed light, instantaneous overheating occurs on the surface, destroying cell structure, causing leakage of cell contents, and ultimately leading to cell death.

[0077] In one embodiment, the system activates the pulsed light module based on a first electrical parameter lower than a preset pulsed sterilization electrical parameter, so that the pulsed light module provides a light source to illuminate the food. While the pulsed light module is illuminating the food, a snapshot hyperspectral module detects microbial information on the surface of the food. Based on the microbial information, the system controls the pulsed light module based on a second electrical parameter greater than or equal to the pulsed sterilization electrical parameter, so that the pulsed light module generates pulsed light to irradiate and sterilize the surface of the food. In this embodiment, the pulsed light module provides a light source to the snapshot hyperspectral module for illumination before the snapshot hyperspectral module detects microorganisms. After detecting microbial information on the surface of the food, the pulsed light module provides a light source to irradiate and sterilize the surface of the food, realizing the sharing of the same light source for illumination and sterilization, thereby achieving low-cost sterilization while improving the sterilization effect.

[0078] like Figure 7 As shown, Figure 7 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application; as shown below. Figure 7 As shown in the embodiment of this application, the sterilization control method for refrigeration equipment, regarding the above step S630 of detecting microbial information on the surface of food through a snapshot hyperspectral module, includes but is not limited to steps S710 and S720. Each step will be described in turn below.

[0079] Step S710: Collect the spectral information reflected by the food ingredients through the snapshot hyperspectral module;

[0080] Step S720: Input the spectral information into the preset microbial analysis model, and obtain the microbial information on the surface of the food through the output of the microbial analysis model. The microbial analysis model is trained by the sample microbial species, sample microbial concentration and sample spectral data.

[0081] In one embodiment, when the food is illuminated by a pulsed light module, the spectral information reflected by the food is collected by a snapshot hyperspectral module. The snapshot hyperspectral module can capture the intensity of reflected light at different wavelengths, thereby generating complete spectral data. The spectral information includes the chemical composition and physical state of the food surface. The spectral information is then input into a preset microbial analysis model. The microbial analysis model analyzes and processes the spectral data according to its internal algorithm and trained parameters, and outputs the microbial information on the food surface. Therefore, there is no need for complex sample pretreatment and long-term culture process. The detection can be completed in a short time through the analysis of spectral features, which can accurately identify different kinds of microorganisms and even detect low concentrations of microorganisms.

[0082] It should be noted that the microbial analysis model can be set up in the cloud or locally on the refrigeration equipment system. The microbial analysis model is trained by the sample microbial species, sample microbial concentration and sample spectral data. First, a large number of samples with known microbial species and concentrations are collected, and their corresponding spectral data are obtained through a hyperspectral module. This spectral data is used to train machine learning algorithms, such as random forest and support vector machine, to establish the mapping relationship between spectral features and microbial information.

[0083] In one embodiment, the microbial information includes a first microbial concentration; controlling the pulsed light module based on a second electrical parameter according to the microbial information includes:

[0084] When the concentration of the first microorganism on the surface of the food is greater than or equal to the preset concentration threshold, the pulse light module is controlled to operate for a preset duration with the second electrical parameter so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

[0085] It should be noted that after obtaining the microbial information on the surface of the food, the first microbial concentration on the surface of the food is obtained. The first microbial concentration is compared with a preset concentration threshold. When the first microbial concentration on the surface of the food is greater than or equal to the preset concentration threshold, it means that the microbial concentration on the surface of the food has exceeded the standard and needs to be sterilized. Then, the pulse light module is controlled to work for a preset duration with the second electrical parameter, so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

[0086] It should be noted that the preset duration of the pulse light module's operation and the value of the second electrical parameter can be adjusted by the user and the system according to the actual situation. By dynamically adjusting the electrical parameters, the sterilization effect can be guaranteed while avoiding the impact of over-processing on the quality of the food.

[0087] like Figure 8 As shown, Figure 8This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application; as shown below. Figure 8 As shown in the embodiment of this application, the sterilization control method for refrigeration equipment includes, but is not limited to, steps S810, S820 and S830 after the pulse light module is controlled to work for a preset time with the second electrical parameter. Each step will be described in turn below.

[0088] Step S810: Based on the first electrical parameters, control the pulse light module to illuminate the food again, and use the snapshot hyperspectral module to detect the second microbial concentration on the surface of the food again;

[0089] Step S820: When the concentration of the second microorganism is greater than or equal to the preset concentration threshold, control the pulse light module to work with the second electrical parameters;

[0090] Step S830: After the concentration of the second microorganism is less than the preset concentration threshold, turn off the pulse light module.

[0091] In one embodiment, the pulsed light module illuminates the food surface again according to the preset first electrical parameters. After pulsed light processing, a snapshot hyperspectral module collects spectral information from the food surface. The second microbial concentration is calculated using a preset microbial analysis model. The hyperspectral module can capture the spectral characteristics of the food surface and, combined with chemometric methods, can accurately detect the microbial concentration. The second microbial concentration is compared with a preset concentration threshold. If the second microbial concentration is greater than or equal to the preset concentration threshold, it indicates that sterilization needs to continue. The electrical parameters of the pulsed light module are dynamically adjusted according to the value of the second microbial concentration. This can increase the pulse energy or extend the pulse duration, thereby improving the sterilization effect. After the pulsed light module operates with the second electrical parameters, the microbial concentration on the food surface is detected again by the hyperspectral module. If the second microbial concentration is still higher than the threshold, step S820 is repeated to continue adjusting the electrical parameters of the pulsed light module and processing. When the second microbial concentration is lower than the preset concentration threshold, it indicates that the microorganisms on the food surface have been effectively controlled. At this time, the pulsed light module is turned off.

[0092] like Figure 9 As shown, Figure 9 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application; as shown below. Figure 9 As shown in the embodiment of this application, the sterilization control method for refrigeration equipment includes microbial information including microbial species, including but not limited to steps S910, S920 and S930. Each step will be described in turn below.

[0093] Step S910: Identify the type of food ingredients using the snapshot hyperspectral module;

[0094] Step S920: Determine the interaction between the food and the microorganisms attached to the surface of the food based on the type of food and the type of microorganisms.

[0095] Step S930: Control the working state of the pulse light module according to the interaction relationship.

[0096] In one embodiment, the snapshot hyperspectral module captures the reflection or absorption characteristics of food in multiple spectral bands. By analyzing these spectral data, the types of food can be accurately identified. Since different foods have different spectral characteristics in specific bands, meat, vegetables, fruits, etc. can be distinguished by these characteristics.

[0097] It should be noted that the interaction relationship includes both the beneficial effects of microorganisms on the growth and quality of food, such as the decomposition of nutrients and the production of flavor components by microorganisms during fermentation, and the spoilage and contamination of food by harmful microorganisms, which leads to food deterioration. The interaction relationship can comprehensively cover the complex interaction between microorganisms and food, reflecting both benefits and harms.

[0098] Understandably, upon receiving the instruction to identify the type of food, the system activates the snapshot hyperspectral module to acquire captured high-light data. This hyperspectral data is preprocessed, and image data and spectral data are extracted separately. Based on the image data, the system identifies the type of food, obtaining first type information and a first recognition rate. It then determines whether the first recognition rate exceeds a pre-set first threshold. If yes, the first type information is output. If not, the system identifies the type of food based on the spectral data, obtaining second type information and a second recognition rate. It then determines whether the second recognition rate exceeds a pre-set second threshold. If yes, the second type information is output. If not, the food type identification fails. When outputting the target food's category fails, the user can add the target food's category to the food database.

[0099] In one embodiment, controlling the operating state of the pulsed light module based on the interaction relationship includes one of the following:

[0100] When it is determined that the microorganisms attached to the surface of the food are harmful to the food, and the concentration of the first microorganism is greater than or equal to a preset concentration threshold, the pulse light module is controlled to work for a preset duration with the second electrical parameter so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

[0101] Once it is determined that the microorganisms attached to the surface of the food are beneficial to the food and harmless to the human body, the pulse light module is turned off.

[0102] In one embodiment, a snapshot hyperspectral module is used to detect and determine the types and concentrations of microorganisms adhering to the surface of the food. When harmful microorganisms are detected and their concentration reaches or exceeds a preset concentration threshold, the system activates a pulsed light module. Once activated, the pulsed light module continuously emits pulsed light for a preset duration to irradiate and sterilize the food surface. The entire process requires precise control to ensure sterilization effectiveness and avoid unnecessary damage to the food. During sterilization, changes in microbial concentration can be monitored in real time to ensure the sterilization effect meets expectations. If the microbial concentration is still higher than the safety standard, the processing time can be extended or electrical parameters adjusted.

[0103] In one embodiment, a snapshot hyperspectral module is used to detect and determine the types and concentrations of microorganisms attached to the surface of the food. When the detected microorganisms are beneficial microorganisms and these microorganisms are harmless to the quality of the food and human health, the system will turn off the pulse light module. Turning off the pulse light module can protect these beneficial microorganisms, thereby maintaining or improving the quality of the food.

[0104] like Figure 10 As shown, Figure 10 This is a flowchart of a sterilization control method for a refrigeration device provided in another embodiment of this application; as shown below. Figure 10 As shown in the embodiment of this application, the sterilization control method for the refrigeration equipment, regarding the above step S610 of starting the pulse light module based on the first electrical parameter, includes but is not limited to steps S1010 and S1020, which will be described in turn below.

[0105] Step S1010: Identify the door status of the refrigeration equipment;

[0106] Step S1020: When the door of the refrigeration equipment is closed, the pulse light module is activated based on the first electrical parameter.

[0107] In one embodiment, the door status of the refrigeration equipment is first obtained through a door switch sensor. When the door of the refrigeration equipment is closed, the sensor sends a signal to the control system to trigger the activation of the pulse light module, ensuring that the pulse light module can safely perform sterilization operation when the door is closed, thus avoiding harm to the user.

[0108] In addition, it is understood that the type of door switch sensor for refrigeration equipment can be a mechanical switch, a reed switch, a capacitive sensor, an inductive sensor, an ultrasonic sensor, or other types of door switch sensors for refrigeration equipment. The embodiments of this application do not limit the specific type of door switch sensor for refrigeration equipment.

[0109] In one embodiment, there is an overlap between the wavelength range of the illumination light of the pulsed light module on the food and the wavelength range of the pulsed light. The wavelength range of the illumination light of the pulsed light module on the food is the visible light wavelength range, and the wavelength range of the pulsed light includes the ultraviolet light wavelength range, the visible light wavelength range, and the infrared light wavelength range.

[0110] It should be noted that pulsed light quantum sterilization technology is based on short-duration, full-spectrum pulsed light. It releases pulsed light in a highly concentrated manner (typically 1μs to 0.1s) in the form of a short burst of light by exciting an inert gas (xenon). The pulsed light spectrum is the full spectrum of 200-1000nm, including the ultraviolet band (UV-C: 200-280nm, UV-B: 280-315nm, UV-A: 315-400nm), the visible light band (400-700nm), and the infrared band (700-1100nm). By applying strong light to surfaces in short pulses, the structure of microorganisms such as bacteria, mold, and viruses is destroyed, leading to their inactivation. This allows for direct sterilization of food surfaces, reducing external contamination. Furthermore, it can penetrate transparent food packaging materials without opening the packaging, providing a green guarantee for food health.

[0111] In one embodiment, for pulsed light, it includes:

[0112] The peak intensity of the pulsed light in the ultraviolet band is greater than a first preset threshold.

[0113] The peak intensity of the pulsed light in the visible light band is greater than the second preset threshold.

[0114] The peak intensity of the pulsed light in the infrared band is greater than the third preset threshold.

[0115] It should be noted that ultraviolet light typically has a wavelength range of 200-400 nm. This wavelength range has high energy, effectively destroying the cellular structure of microorganisms, especially DNA, thus achieving sterilization and disinfection. In the ultraviolet light band, the peak intensity of the pulsed light needs to exceed a first preset threshold. This threshold is set according to specific applications and safety standards to ensure sterilization effectiveness while avoiding damage to materials or the human body. Visible light typically has a wavelength range of 400-700 nm. This wavelength range is primarily used to provide sufficient brightness for detecting microbial information on food surfaces. In the visible light band, the peak intensity of the pulsed light needs to exceed a second preset threshold. The threshold setting considers both lighting requirements and detection effectiveness to ensure that the detection of microbial information on food surfaces is not affected during the sterilization process. The wavelength range of infrared light is usually between 750nm and 1200nm. This wavelength range has strong penetrating power and thermal effect, and can be used for heating and drying. In the infrared light band, the peak intensity of the pulsed light needs to be greater than the third preset threshold. The threshold setting takes into account the heating effect and the heat resistance of the material to ensure that the material or food will not be damaged during the heating process.

[0116] In one embodiment, the first electrical parameter, the second electrical parameter, and the pulse sterilization electrical parameter include one of the following: voltage parameter and current parameter.

[0117] It should be noted that the first electrical parameter, the second electrical parameter, and the pulse sterilization electrical parameter can be adjusted according to the voltage parameter. A higher voltage can generate a stronger electric field, thereby improving the sterilization effect, and a larger current can provide more energy, thereby improving the sterilization effect.

[0118] like Figure 11 As shown, Figure 11 This is an overall flowchart of a sterilization control method for a refrigeration device provided in one embodiment of this application; the sterilization control method for the refrigeration device may include, but is not limited to, steps S1101 to S1105.

[0119] Step S1101: Begin;

[0120] Step S1102: Is the door of the refrigeration equipment closed? If yes, proceed to step S1103; otherwise, repeat step S1102.

[0121] Step S1103: The snapshot hyperspectral module is working and the pulsed light module is working with the first electrical parameters;

[0122] Step S1104: If the microbial concentration is less than the preset concentration threshold, proceed to step S1103; otherwise, proceed to step S1105.

[0123] Step S1105: The pulse light module operates with the second electrical parameter for a preset duration. If yes, then proceed to step S1103; otherwise, proceed to step S1104.

[0124] In one embodiment, after the refrigerator door is closed, the pulsed light module operates at a first voltage, which is less than or equal to the pulsed sterilization voltage, providing a light source for the hyperspectral module to detect the type of food and identify microorganisms. Based on the microbial content of that type and the model of hyperspectral imaging information, the current microbial content on the surface of the food is calculated. When the microbial concentration is less than a threshold, pulsed light treatment is not required. The hyperspectral module and the first operating pulsed light module periodically detect, identify, and judge. When the microbial concentration threshold on the food surface is less than or equal to the microbial concentration, the pulsed light module operates at a second voltage for a preset duration, releasing energy instantaneously at high energy levels to kill the microorganisms on the food surface. Then, the hyperspectral module and the pulsed light module operating at the first voltage operate to detect the microbial content on the food surface after one treatment, until the microbial content on the food surface is less than the threshold.

[0125] Based on the sterilization control method of the refrigeration equipment in the above embodiments, the following presents various embodiments of the controller, refrigeration equipment, computer-readable storage medium and computer program product of this application.

[0126] like Figure 12 As shown, Figure 12 This is a schematic diagram of a controller for performing a sterilization control method for a refrigeration device according to an embodiment of this application. The controller 1200 implemented in this application includes: a processor 1210, a memory 1220, and a computer program stored in the memory 1220 and executable on the processor 1210, wherein... Figure 12 The example uses a processor 1210 and a memory 1220.

[0127] The processor 1210 and the memory 1220 can be connected via a bus or other means. Figure 12 Taking the example of a connection between China and Israel via a bus.

[0128] Memory 1220, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 1220 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 1220 may optionally include remotely located memories 1220 relative to processor 1210, which can be connected to controller 1200 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0129] Those skilled in the art will understand that Figure 12 The device structure shown does not constitute a limitation on the controller 1200 and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0130] exist Figure 12 In the controller 1200 shown, the processor 1210 can be used to call the control program stored in the memory 1220, thereby implementing the sterilization control method of the refrigeration equipment described above. Specifically, the non-transitory software program and instructions required to implement the sterilization control method of the refrigeration equipment in the above embodiment are stored in the memory 1220. When executed by the processor 1210, the sterilization control method of the refrigeration equipment in the above embodiment is executed.

[0131] It is worth noting that, since the controller 1200 of this application embodiment can execute the sterilization control method of the refrigeration equipment in any of the above embodiments, the specific implementation method and technical effects of the controller 1200 of this application embodiment can refer to the specific implementation method and technical effects of the sterilization control method of the refrigeration equipment in any of the above embodiments.

[0132] Furthermore, one embodiment of this application also provides a refrigeration device, which includes the controller described in the above embodiment.

[0133] It is worth noting that, since the refrigeration equipment of this application includes the controller of the above embodiments, and the controller of the above embodiments can execute the sterilization control method of the refrigeration equipment of any of the above embodiments, the specific implementation method and technical effect of the refrigeration equipment of this application can refer to the specific implementation method and technical effect of the sterilization control method of the refrigeration equipment of any of the above embodiments.

[0134] Furthermore, one embodiment of this application provides a computer-readable storage medium storing computer-executable instructions for performing the sterilization control method for the refrigeration device described above. Exemplarily, the above-described method is executed... Figures 6 to 11 The methods and steps in the text.

[0135] It is worth noting that, since the computer-readable storage medium of this application embodiment can execute the sterilization control method of the refrigeration device of any of the above embodiments, the specific implementation and technical effects of the computer-readable storage medium of this application embodiment can be referred to the specific implementation and technical effects of the sterilization control method of the refrigeration device of any of the above embodiments.

[0136] Furthermore, one embodiment of this application also provides a computer program product, including a computer program or computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium and executes the computer program or computer instructions, causing the computer device to perform the sterilization control method for the refrigeration device described above. Exemplarily, the above-described method is performed... Figures 6 to 11 The methods and steps in the text.

[0137] It is worth noting that, since the computer program product of this application embodiment can execute the sterilization control method of the refrigeration equipment in any of the above embodiments, the specific implementation method and technical effect of the computer program product of this application embodiment can refer to the specific implementation method and technical effect of the sterilization control method of the refrigeration equipment in any of the above embodiments.

[0138] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media 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 includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0139] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0140] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0141] It should also be understood that the various implementation methods provided in this application can be combined arbitrarily to achieve different technical effects.

[0142] The above provides a detailed description of the preferred embodiments of this application. However, this application is not limited to the above-described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A sterilization control method for refrigeration equipment, characterized in that, The refrigeration equipment has a pulsed light module and a snapshot hyperspectral module installed in its functional space, and the functional space is used to place food ingredients; the method includes: The pulsed light module is activated based on a first electrical parameter so that the pulsed light module illuminates the food, wherein the first electrical parameter is less than a preset pulse sterilization electrical parameter; When the food is illuminated by the pulsed light module, the microbial information on the surface of the food is detected by the snapshot hyperspectral module; Based on the microbial information, the pulsed light module is controlled according to the second electrical parameter so that the pulsed light module generates pulsed light to irradiate and sterilize the surface of the food, wherein the second electrical parameter is greater than or equal to the pulse sterilization electrical parameter.

2. The method according to claim 1, characterized in that, The detection of microbial information on the surface of the food ingredient using the snapshot hyperspectral module includes: The snapshot hyperspectral module collects the spectral information reflected by the food ingredients; The spectral information is input into a preset microbial analysis model, and the microbial information on the surface of the food is obtained by outputting the microbial information through the microbial analysis model. The microbial analysis model is trained by the sample microbial species, sample microbial concentration and sample spectral data.

3. The method according to claim 1, characterized in that, The microbial information includes a first microbial concentration; the step of controlling the pulsed light module based on the microbial information and a second electrical parameter includes: When the concentration of the first microorganism on the surface of the food is greater than or equal to a preset concentration threshold, the pulse light module is controlled to operate for a preset duration with the second electrical parameter, so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration.

4. The method according to claim 3, characterized in that, After controlling the pulsed light module to operate for a preset duration using the second electrical parameter, the method further includes: Based on the first electrical parameter, the pulsed light module is controlled to illuminate the food again, and the second microbial concentration on the surface of the food is detected again by the snapshot hyperspectral module. When the concentration of the second microorganism is greater than or equal to the preset concentration threshold, the pulsed light module is controlled to operate with the second electrical parameters. The pulsed light module is turned off once the concentration of the second microorganism is less than the preset concentration threshold.

5. The method according to claim 3, characterized in that, The microbial information also includes microbial species; the method further includes: The food type is identified using the snapshot hyperspectral module; Based on the type of food and the type of microorganism, determine the interaction relationship between the food and the microorganisms attached to the surface of the food; The working state of the pulsed light module is controlled according to the interaction relationship.

6. The method according to claim 5, characterized in that, Controlling the operating state of the pulsed light module according to the interaction relationship includes one of the following: When it is determined that the microorganisms attached to the surface of the food are harmful to the food, and the concentration of the first microorganism is greater than or equal to a preset concentration threshold, the pulse light module is controlled to operate for a preset duration with the second electrical parameter, so that the pulse light module emits pulse light to irradiate and sterilize the surface of the food within the preset duration. When it is determined that the microorganisms attached to the surface of the food are beneficial to the food and harmless to the human body, the pulse light module is turned off.

7. The method according to claim 1, characterized in that, The step of activating the pulsed light module based on the first electrical parameter includes: Identify the door status of the refrigeration equipment; When the door of the refrigeration equipment is closed, the pulse light module is activated based on the first electrical parameter.

8. The method according to claim 1, characterized in that, There is an overlap between the wavelength range of the illumination light emitted by the pulsed light module and the wavelength range of the pulsed light.

9. The method according to claim 8, characterized in that, The pulsed light module illuminates the food in the visible light band, and the pulsed light band includes the ultraviolet light band, the visible light band, and the infrared light band.

10. The method according to claim 9, characterized in that, For the pulsed light, including: The peak intensity of the pulsed light in the ultraviolet band is greater than a first preset threshold. The peak light intensity of the pulsed light in the visible light band is greater than a second preset threshold. The peak intensity of the pulsed light in the infrared band is greater than a third preset threshold.

11. The method according to claim 1, characterized in that, The first electrical parameter, the second electrical parameter, and the pulse sterilization electrical parameter include one of the following: voltage parameter and current parameter.

12. A refrigeration device, characterized in that, The method for sterilization control of a refrigeration device according to any one of claims 1 to 11 is used to perform the sterilization control method of the refrigeration device, wherein the refrigeration device is provided with a functional space for placing food, and the functional space is provided with a pulse light module and a snapshot hyperspectral module.

13. The refrigeration equipment according to claim 12, characterized in that, The pulsed light module is installed at the top center of the functional space, and the snapshot hyperspectral module is installed on the side of the functional space. The snapshot hyperspectral module and the pulsed light module are placed parallel to each other, and the detection direction of the snapshot hyperspectral module faces the functional space.

14. A computer-readable storage medium, characterized in that: The device stores computer-executable instructions for performing the sterilization control method for a refrigeration device 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. The processor of the computer device reads the computer program or the computer instructions from the computer-readable storage medium and executes the computer program or the computer instructions, causing the computer device to perform the sterilization control method for the refrigeration device as described in any one of claims 1 to 11.

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