Refrigerator and control method thereof

Abstract

The embodiment of the invention provides a refrigerator and a control method thereof, and belongs to the technical field of household appliances. The refrigerator comprises a refrigerator body, an information acquisition device, a sterilization device and a controller, the refrigerator body is provided with at least one refrigeration chamber used for containing articles. The information acquisition device is used for acquiring microorganism species information of an article, and the microorganism species information is used for determining microorganism species; the degerming device is used for degerming; the controller is electrically connected with the information acquisition device and the degerming device, and the controller is configured to determine the microbial species after acquiring the microbial species identification information, and control the degerming device to degerm according to the microbial species. The refrigerator can conduct targeted sterilization on different kinds of microorganisms, the microorganisms are comprehensively removed, the sterilization effect is enhanced, and therefore the fresh-keeping effect on food materials and other objects is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and more specifically, to a refrigerator and a control method thereof. Background Art

[0002] A refrigerator is a refrigeration device used to keep food at a constant low temperature to preserve the food. A sterilization device is usually installed in the refrigeration compartment of the refrigerator to sterilize the food to enhance the preservation effect of the food.

[0003] In the related art, sterilization devices generally use ozone sterilization, ion sterilization or ultraviolet sterilization technology, focusing on removing bacterial microorganisms such as Staphylococcus aureus and Escherichia coli.

[0004] However, the sterilization devices in the related art can only eliminate a limited number of microorganisms and cannot perform targeted sterilization on different types of microorganisms. The sterilization effect is weak, which reduces the preservation effect of the refrigerator on food. Summary of the invention

[0005] The embodiment of the present application provides a refrigerator and a control method thereof, which can solve the technical problem that the sterilization device in the related art can only eliminate a limited number of microorganisms, cannot perform targeted sterilization on different types of microorganisms, has a weak sterilization effect, and reduces the refrigerator's ability to preserve food.

[0006] In a first aspect, an embodiment of the present application provides a refrigerator, comprising a housing, an information collection device, a sterilization device and a controller; the housing is configured with at least one refrigeration compartment for accommodating articles; the information collection device is used to collect microbial species information of the articles, and the microbial species information is used to determine the microbial species; the sterilization device is used for sterilization; the controller is electrically connected to the information collection device and the sterilization device, and the controller is configured to: determine the microbial species after obtaining the microbial species identification information, and control the sterilization device to perform sterilization according to the microbial species.

[0007] The refrigerator of the embodiment of the present application is provided with an information collection device electrically connected to the controller, and the information collection device is used to obtain the microbial species information of the items stored in the refrigeration room. The controller obtains the microbial species information, determines the microbial species according to the microbial species information, and controls the sterilization device to perform sterilization according to the microbial species, so that the refrigerator of the embodiment of the present application can perform targeted sterilization for different types of microorganisms, comprehensively remove microorganisms, enhance the sterilization effect, and thus improve the preservation effect of food and other items.

[0008] In some embodiments of the present application, the information acquisition device includes an image acquisition module, which is used to acquire images of objects located in the refrigeration room, and the object images are used to determine object spectral information, and the object spectral information is the microorganism species identification information; the controller is electrically connected to the image acquisition module, and the controller is further configured to: determine the object spectral information after acquiring the object image, and input the object spectral information into a pre-trained microorganism species identification model to obtain the microorganism species.

[0009] With such a setting, by adopting the method of inputting the spectral information of the object into a pre-trained microbial identification model for identifying the microbial species, the speed of microbial species identification can be improved, the recognition accuracy can be improved, and identification can be performed without direct contact with the object and the microorganism, thereby improving the reliability and convenience of the microbial species identification results.

[0010] In some embodiments of the present application, the sterilization device includes a blue light module electrically connected to the controller, for emitting blue light to kill microorganisms; the refrigerator also includes a memory electrically connected to the controller, for storing light radiation doses corresponding to the types of microorganisms; the controller is also configured to: determine the light radiation dose according to the types of microorganisms, and control the blue light module to emit blue light to achieve the light radiation dose.

[0011] In this way, after obtaining the type of microorganism, the controller can read the light radiation dose corresponding to the type of microorganism stored in the memory to determine the light radiation dose required to eliminate the type of microorganism, and then control the blue light module to emit blue light to achieve the light radiation dose, thereby ensuring that the sterilization device can eliminate a sufficient number of microorganisms, thereby ensuring the effect of targeted sterilization of the microorganisms.

[0012] In some embodiments of the present application, the sterilization device also includes a ranging module electrically connected to the controller, for obtaining object distance information, and the object distance information is used to determine the distance between the blue light module and the object; the memory is also used to store the light radiation flux of the blue light module corresponding to the distance; the controller is also configured to: control the ranging module to obtain the object distance information, determine the distance between the blue light module and the object according to the object distance information, determine the light radiation flux of the blue light module according to the distance, determine the sterilization time according to the light radiation flux and the light radiation dose, and control the blue light module to emit light to achieve the sterilization time.

[0013] With such a setting, the distance between the blue light module and the object can be obtained through the distance information of the object measured by the ranging module, the light radiation flux irradiated to the object by the blue light module can be determined based on the distance, and the sterilization time can be determined based on the light radiation flux and the light radiation dose. The light emission time of the blue light module can be accurately controlled, which can reduce the energy consumption of the sterilization device while ensuring the sterilization effect.

[0014] In some embodiments of the present application, the controller determines the optical radiation flux according to the distance according to the following formula:

[0015] P=0.556×h 2 -15.03×h+86.80;

[0016] Wherein, P is the light radiation flux, and h is the distance between the blue light module and the object.

[0017] With such a configuration, the light radiation flux can be accurately calculated according to the distance between the blue light module and the object, thereby improving the accuracy of the light radiation flux and further improving the sterilization effectiveness of the sterilization device.

[0018] In some embodiments of the present application, the controller determines the sterilization duration according to the light radiation flux and the light radiation dose according to the following formula:

[0019] E = P × t;

[0020] Wherein, E is the light radiation dose, P is the light radiation flux, and t is the sterilization time.

[0021] With such a configuration, the sterilization time can be accurately calculated according to the light radiation flux and the light radiation dose through the above formula, thereby ensuring the accuracy of the sterilization time and further improving the sterilization effectiveness of the sterilization device.

[0022] In some embodiments of the present application, the refrigerator also includes an angle adjustment device electrically connected to the controller, the angle adjustment device is connected to the blue light module and the ranging module, and is used to adjust the angle of the blue light module and the ranging module; the controller is also configured to: before controlling the ranging module to obtain object distance information, obtain object position information through the information acquisition device, and control the angle adjustment device according to the object position information so that the ranging module is opposite to the object; and after determining the sterilization time, control the angle adjustment device so that the blue light module continues to rotate for the sterilization time.

[0023] With such a configuration, the angle of the ranging module can be adjusted through the angle adjustment device based on the location information of the object so that the ranging module is directly opposite the object, thereby improving the accuracy of the object distance information measured by the ranging module, and further improving the accuracy of the calculation of the sterilization time.

[0024] Moreover, after determining the sterilization time, the blue light module can be driven to circulate actively through the angle adjustment device so that the blue light emitted by the blue light module can irradiate the entire area of ​​the object to prevent sterilization dead corners, thereby improving the sterilization effect of the sterilization device.

[0025] In addition, the control method of the embodiment of the present application can control the distance measuring module through the angle adjustment device before controlling the distance measuring module to obtain the distance information of the object, so that the distance measuring module and the object are directly opposite; after determining the sterilization time, the blue light module is controlled again through the angle adjustment device so that the blue light module can rotate cyclically. In this way, the angles of the distance measuring module and the blue light module can be controlled by the same angle adjustment device, and the angle adjustment processes of the distance measuring module and the blue light module will not interfere with each other, which reduces the structural complexity of the sterilization device and reduces the cost of parts.

[0026] In some embodiments of the present application, a storage drawer for accommodating the items is provided in the refrigeration room; the refrigerator also includes a switch identification device electrically connected to the controller, and the switch identification device is used to identify the switch state of the storage drawer; the controller is also configured to: after controlling the blue light module to emit light, obtain the switch state of the storage drawer, if the storage drawer is in an open state, control the blue light module to be turned off within a first preset time period, and obtain the current light emission time period of the blue light module; wherein, the first preset time period and the current light emission time period are both less than the sterilization time period.

[0027] With such a configuration, during the sterilization process, whether the blue light module is emitting light can be associated with the switch state of the storage drawer to prevent the blue light module from emitting light when the storage drawer is in the open state and failing to achieve the effect of eliminating microorganisms, thereby reducing the energy consumption of the sterilization device.

[0028] In some embodiments of the present application, the controller is further configured to: if the storage drawer is in a closed state, obtain the switch state of the storage drawer again after a second preset time period; if the storage drawer is still in a closed state, control the blue light module to continue to emit light until the sterilization time period is reached.

[0029] With such an arrangement, the closing state of the storage drawer can be judged a second time to improve the accuracy of determining whether the storage drawer is in the closed state.

[0030] In a second aspect, an embodiment of the present application provides a control method for a refrigerator, the refrigerator comprising a box, an information collection device and a sterilization device, the box having at least one refrigeration compartment for accommodating articles; the information collection device is used to obtain microbial species information of the articles, the microbial species information is used to determine the microbial species; the sterilization device is used for sterilization;

[0031] The method comprises:

[0032] Obtain information about the microbial species of an item;

[0033] Determining the microorganism species according to the microorganism species information;

[0034] The sterilization device of the refrigerator is controlled to perform sterilization according to the types of microorganisms.

[0035] The control method of the refrigerator provided in the embodiment of the present application obtains the microbial species information of the items stored in the refrigeration room by controlling the information collection device, determines the microbial species according to the microbial species information, and controls the sterilization device to perform sterilization according to the microbial species, so that the refrigerator of the embodiment of the present application can perform targeted sterilization on different types of microorganisms, comprehensively remove microorganisms, enhance the sterilization effect, and thus improve the preservation effect of food and other items. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0037] Figure 1 A schematic diagram of a partial structure of a refrigerator according to an embodiment of the present application;

[0038] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drawer compartment Figure 1 ;

[0039] Figure 3 for Figure 2 Schematic diagram of partial explosion of the middle drawer compartment;

[0040] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0041] Figure 5 A schematic diagram of the angle adjustment device controlling the sterilization device to face one side;

[0042] Figure 6A schematic diagram of the angle adjustment device controlling the sterilization device to face the other side;

[0043] Figure 7 for Figure 1 Schematic diagram of the structure of the middle drawer compartment Figure 2 ;

[0044] Figure 8 for Figure 1 A schematic diagram of the front view structure of the refrigerator;

[0045] Fig. 9 for Figure 1 Hardware connection diagram of the refrigerator;

[0046] Fig.10 This is a flow chart of a method for controlling a refrigerator according to an embodiment of the present application;

[0047] Fig.11 This is a flowchart of a refrigerator control method according to another embodiment of the present application.

[0048] Reference numerals:

[0049] 100- cabinet;

[0050] 110-outer shell; 120-inner shell;

[0051] 121-first partition; 122-second partition;

[0052] 123- drawer accommodating portion; 124- drawer body;

[0053] 125-clip recessed portion; 130-door body;

[0054] 200-information collection device;

[0055] 300-sterilization device;

[0056] 310-blue light module; 320-distance measurement module;

[0057] 330-connecting substrate;

[0058] 400-controller;

[0059] 500-memory;

[0060] 600-angle adjustment device;

[0061] 610-rotating connecting member; 611-clamping protrusion;

[0062] 612-accommodating recess; 613-sealing member;

[0063] 700-reminder device;

[0064] 800-touch display panel;

[0065] 900 - Protective cover. DETAILED DESCRIPTION

[0066] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0067] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0068] In addition, the terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0069] In the related art, a sterilization device is usually installed in the refrigeration room of the refrigerator, and the sterilization device is used to sterilize food to enhance the preservation effect of food. The sterilization device in the related art generally adopts ozone sterilization, ion sterilization or ultraviolet sterilization technology, focusing on removing bacterial microorganisms such as Staphylococcus aureus and Escherichia coli, but cannot remove fungal microorganisms such as yeast, and viral microorganisms such as bacteriophages. Therefore, the sterilization device in the related art can only eliminate a limited number of microorganisms, and cannot perform targeted sterilization on different types of microorganisms. The sterilization effect is weak, which reduces the preservation effect of the refrigerator on food.

[0070] In view of this, the embodiment of the present application provides a refrigerator and a control method thereof, wherein an information collection device electrically connected to a controller is provided, and the information collection device is used to obtain information on the types of microorganisms of items stored in the refrigeration room. The controller obtains the information on the types of microorganisms, determines the types of microorganisms according to the information on the types of microorganisms, and controls the sterilization device to perform sterilization according to the types of microorganisms, so that the refrigerator of the embodiment of the present application can perform targeted sterilization on different types of microorganisms, comprehensively remove microorganisms, enhance the sterilization effect, and thus improve the preservation effect on food and other items.

[0071] The technical solution of the present application is described in detail below in conjunction with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0072] refer to Figure 1, the refrigerator provided in the embodiment of the present application may include a box body 100. Exemplarily, the box body 100 may include an outer shell 110, an inner liner 120 located in the outer shell 110, and a foaming layer (not shown in the drawings) filled between the outer shell 110 and the inner liner 120. The inner liner 120 may be configured with at least one refrigeration compartment for accommodating food and other items. The refrigeration compartment may have a take-and-drop port, and items may be taken and placed in the refrigeration compartment through the take-and-drop port. The refrigerator may also include a refrigeration system located in the box body 100, and the refrigeration system is used to provide cold energy to at least one refrigeration compartment to refrigerate the items. Exemplarily, according to the amount of cold energy provided by the refrigeration system, the refrigeration compartment can be divided into a refrigeration compartment, a freezing compartment, a variable temperature compartment, and the like.

[0073] Exemplarily, a storage drawer may also be provided in the refrigeration room. Figure 2 , the refrigerator may further include a first partition 121, which is disposed in the refrigeration compartment and connected to the inner liner 120 to enclose the inner liner 120 to form a drawer compartment. Exemplarily, a second partition 122 may be further disposed in the drawer compartment, and the second partition 122 may separate the drawer compartment into a plurality of drawer accommodating portions 123. In some implementations of the embodiments of the present application, the storage drawer may include a drawer body 124, which may be drawn out from or pushed into the drawer accommodating portion 123. In other implementations of the embodiments of the present application, the storage drawer may further include a cover, which is disposed in the drawer accommodating portion 123 and connected to the inner liner 120. When the drawer body 124 is drawn out from the drawer accommodating portion 123, the cover may be separated from the drawer body 124; when the drawer body 124 is pushed into the drawer accommodating portion 123, the cover may be covered on the drawer body 124.

[0074] Exemplarily, the refrigerator may further include a switch identification device, which may generate a switch state signal for identifying the switch state of the drawer body 124, that is, for identifying that the drawer body 124 is pulled out from the drawer accommodating portion 123, and for identifying that the drawer body 124 is pushed into the drawer accommodating portion 123. Exemplarily, the switch identification device may be a proximity switch, which may be installed on the side wall of the drawer accommodating portion 123 opposite to the access opening. When the drawer body 124 is pulled out from the drawer accommodating portion 123, the drawer body 124 is away from the proximity switch, and the proximity switch generates an opening signal indicating that the storage drawer is in an open state. When the drawer body 124 is pushed into the drawer accommodating portion 123, the drawer body 124 triggers the proximity switch, and the proximity switch generates a closing signal indicating that the storage drawer is in a closed state.

[0075] Continue to refer Figure 3 and Figure 4The refrigerator of the embodiment of the present application may also include an information acquisition device 200, which is used to obtain microbial species information of the object, and the microbial species information is used to determine the microbial species. Exemplarily, the information acquisition device 200 may be an electrochemical microbial sensor. Alternatively, the information acquisition device 200 may also be an image acquisition module, such as a camera, etc., for acquiring images of objects. Exemplarily, the image acquisition module may be located in the refrigeration room and connected to the inner tank 120. It may also be installed on one side of the first partition 121 located in the drawer accommodating portion 123. Alternatively, the image acquisition module may also be installed on the top of the side wall of the drawer body 124. Alternatively, when the storage drawer includes a cover body, the image acquisition module may also be installed on the side of the cover body facing the drawer body 124.

[0076] The refrigerator of the embodiment of the present application may further include a sterilization device 300 for sterilization. Exemplarily, the sterilization device 300 may be located in the refrigeration room and connected to the inner tank 120. It may also be installed on one side of the first partition 121 located in the drawer accommodating portion 123. Alternatively, the sterilization device 300 may also be installed on the top of the side wall of the drawer body 124. Alternatively, when the storage drawer includes a cover body, the sterilization device 300 may also be installed on the side of the cover body facing the drawer body 124.

[0077] Exemplarily, the sterilization device 300 may include a blue light module 310, which is used to emit blue light to kill microorganisms. Exemplarily, the blue light module 310 may include a plurality of blue light emitting diodes (LEDs). The light emitted by the blue light LED has a divergence angle, for example, the divergence angle may be 30° to 120°, so as to expand the range of the blue light LED irradiation, thereby increasing the sterilization range of the sterilization device 300.

[0078] The wavelength of blue light emitted by blue LED can be 400nm to 480nm, for example, 400nm to 420nm. When the blue light with a wavelength in the range of 400nm to 480nm is irradiated on microorganisms, the porphyrin compounds in the microorganisms will undergo electron transitions to generate OH - , hydrogen peroxide, singlet oxygen and other active substances, which act on the cell wall, cell membrane, DNA, etc. of microorganisms, causing irreversible oxidative damage to the microorganisms, thereby destroying the microorganisms. In addition to having a sterilization effect on bacterial microorganisms, blue light also has a certain sterilization effect on fungal and viral microorganisms such as yeast, mold, bacteriophage, COV19 virus, etc.

[0079] Moreover, when the items are packaged, the blue light can penetrate various packaging materials to sterilize the items in the packaging, without removing the outer packaging of the items, thereby improving the convenience of using the sterilization device 300. In addition, the blue light will not cause deterioration to items such as food and the material of the liner 120, and will not cause biological harm to the human body, thereby improving the safety of the sterilization device 300.

[0080] For example, a reflective film containing reflective material may be provided inside the drawer body 124. When the blue light module 310 emits blue light, the reflective film can reflect the blue light to expand the area illuminated by the blue light, achieve full coverage of the blue light, and enhance the sterilization effect of the sterilization device 300.

[0081] The sterilization device 300 may also include a distance measuring module 320, which is used to obtain object distance information, and the object distance information is used to determine the distance between the blue light module 310 and the object. Exemplarily, the distance measuring module 320 may be an ultrasonic distance measuring sensor or a laser distance measuring sensor, or may be other types of sensors for measuring distance, which will not be described in detail in the embodiments of the present application. Exemplarily, the object distance information may be the distance between the distance measuring module 320 and the object, and the distance between the blue light module 310 and the object may be calculated based on the distance between the distance measuring module 320 and the object.

[0082] Exemplarily, the sterilization device 300 may further include a connecting substrate 330, which may be connected to the inner liner 120, the first partition 121 or the cover plate. The blue light module 310 and the distance measuring module 320 may both be mounted on the connecting substrate 330. The connecting substrate 330 may provide power to the blue light module 310 and the distance measuring module 320, and may also provide heat dissipation for the blue light module 310 and the distance measuring module 320.

[0083] For example, the information collection device 200 can be installed on the connection substrate 330, and the connection substrate 330 can simultaneously provide power and heat dissipation for the information collection device 200, thereby improving the structural compactness of the refrigerator.

[0084] refer to Fig. 9The refrigerator of the embodiment of the present application may also include a controller 400, and the controller 400 is electrically connected to the information collection device 200 and the sterilization device 300. The controller 400 is used to obtain the microorganism species information obtained by the information collection device 200, determine the microorganism species according to the microorganism species information, and control the sterilization device 300 to sterilize according to the microorganism species information. The refrigerator of the embodiment of the present application is provided with an information collection device 200 electrically connected to the controller 400, and the information collection device 200 is used to obtain the microorganism species information of the items stored in the refrigeration room. The controller 400 obtains the microorganism species information, determines the microorganism species according to the microorganism species information, and controls the sterilization device 300 to sterilize according to the microorganism species, so that the refrigerator of the embodiment of the present application can perform targeted sterilization on different types of microorganisms, comprehensively remove microorganisms, enhance the sterilization effect, and thus improve the preservation effect of food and other items.

[0085] Exemplarily, the controller 400 may also be electrically connected to a switch identification device (not shown in the drawings) to obtain the switch status of the storage drawer.

[0086] The refrigerator of the embodiment of the present application may further include a memory 500, and the memory 500 may be electrically connected to the controller 400, so that the controller 400 can read the information stored in the memory 500 and store information in the memory 500. Exemplarily, the memory 500 may be used to store information on light radiation doses corresponding to microbial species, and may also be used to store light radiation flux of the blue light module 310 corresponding to the distance between the blue light module 310 and the distance measuring module 320, and the like.

[0087] The refrigerator of the embodiment of the present application may further include an angle adjustment device 600, which is connected to the blue light module 310 and the distance measuring module 320 and is used to adjust the angles of the blue light module 310 and the distance measuring module 320. Figure 5 and Figure 6 As shown, the angle adjustment device 600 can drive the blue light module 310 and the distance measuring module 320 to rotate so that the blue light module 310 and the distance measuring module 320 face different directions. Exemplarily, the angle adjustment device 600 may include a rotating connection member 610, a first rotating motor and a second rotating motor. The rotating connection member 610 can be connected to the inner liner 120, the first partition 121 or the drawer body 124, and connected to the connecting substrate 330, so that the connecting substrate 330 drives the blue light module 310 and the distance measuring module 320 to rotate relative to the inner liner 120, the first partition 121 or the drawer body 124, thereby achieving angle adjustment.

[0088] Take the connection between the rotating connecting member 610 and the first partition plate 121 as an example, Figure 4, a side of the first partition 121 located in the drawer accommodating portion 123 may be provided with a snap-on recess 125, and an end of the rotating connector 610 facing the first partition 121 may be provided with a snap-on protrusion 611, which is snap-on in the snap-on recess 125. Exemplarily, the rotating connector 610 may also be provided with an accommodating recess 612, which is located on the side of the snap-on protrusion 611 facing the drawer body 124, and a sealing member 613 is disposed in the accommodating recess 612, and when the snap-on protrusion 611 is snap-on in the snap-on recess 125, the sealing member 613 abuts against the snap-on recess 125. The sealing member 613 can improve the connection strength between the snap-on protrusion 611 and the snap-on recess 125, and has a sealing and buffering effect.

[0089] In some implementations of the embodiments of the present application, the rotating connector 610 and the first partition 121 may also be connected by fixing members such as screws and rivets, which will not be described in detail here.

[0090] The first rotating motor is connected to the connecting substrate 330, and is used to drive the connecting substrate 330 to drive the blue light module 310 and the distance measuring module 320 to rotate around the vertical direction. Exemplarily, the rotation angle range of the blue light module 310 and the distance measuring module 320 around the vertical direction can be 0° to 90°.

[0091] The second rotating motor is connected to the connecting substrate 330, and is used to drive the connecting substrate 330 to drive the blue light module 310 and the ranging module 320 to rotate horizontally. For example, the blue light module 310 and the ranging module 320 can rotate vertically within a range of 0° to 360°.

[0092] refer to Figure 7 The refrigerator of the embodiment of the present application may further include a reminder device 700, which is used to send a reminder signal. The reminder device 700 may be electrically connected to the controller 400 to send a reminder signal under the control of the controller 400. Exemplarily, the reminder device 700 may be a plurality of breathing lights arranged in a straight line, and the breathing lights may be installed on a side of the first partition 121 that is away from the drawer body 124 and close to the access port.

[0093] refer to Figure 8 The refrigerator of the embodiment of the present application may further include a touch display panel 800, which may be electrically connected to the controller 400, for displaying information to the user and for the user to perform touch operations to realize the human-computer interaction function of the refrigerator. Exemplarily, the refrigerator may include a door body 130, which may be rotatably connected to the box body 100 to open or close the access opening. The touch display panel 800 may be installed on the outside of the door body 130.

[0094] For example, the refrigerator of the embodiment of the present application may further include a protective cover 900, which is disposed on the sterilization device and the information collection device 200 and is connected to the connection substrate 330 to isolate impurities such as water vapor and protect the sterilization device and the information collection device 200. For example, the material of the protective cover 900 may be a light-transmitting material, such as light-transmitting plastic or glass.

[0095] The following will take the example where the information collection device 200 and the sterilization device 300 are both installed on the first partition 121 on one side of the drawer accommodating portion 123, the storage drawer includes a drawer body 124, and the items are accommodated in the drawer body 124 to illustrate the technical solution of the embodiment of the present application.

[0096] refer to Fig.10 Another embodiment of the present application provides a refrigerator control method, which can be used to control the refrigerator in the above embodiment. The control method may include the following steps:

[0097] S100: Obtaining microbial species information of an object.

[0098] Before obtaining the microbial species information of the item, the controller 400 may obtain a sterilization start signal. For example, the sterilization start signal may be generated by the user operating a sterilization button. The sterilization button may be a touch control formed on the touch display panel 800, or may be a physical button provided on the refrigerator. When the user needs to sterilize the refrigerator, the sterilization button is pressed to generate a sterilization start signal.

[0099] Exemplarily, the refrigerator may also include a signal generating device, and the sterilization start signal may also be automatically generated by the signal generating device. For example, after the sterilization cycle is set, the signal generating device may automatically generate a sterilization start signal every other sterilization cycle. Exemplarily, the sterilization cycle may be greater than or equal to 24 hours, for example, 24 hours or 28 hours.

[0100] After the controller 400 obtains the sterilization start signal, it can be determined that the sterilization device 300 needs to be turned on. Then, the controller 400 can obtain the microbial species information of the items through the signal acquisition device. Exemplarily, the controller 400 can generate a first control signal and send the first control signal to the information acquisition device 200, and the first control signal is used to instruct the information acquisition device 200 to collect the microbial species identification information of the items in the drawer body 124. The information acquisition device 200 collects the microbial species identification information of the items in the drawer body 124 in response to the first control signal, and the microbial species information can be used to determine the type of microorganism.

[0101] Exemplarily, the information collection device 200 may be an image acquisition module, which is used to acquire an image of an object in the drawer body 124. The image acquisition module may take a photo of the object in the drawer body 124 in response to the first control signal to acquire an image of the object. The image of the object may be used to determine the spectral information of the object, which is the identification information of the microorganism species.

[0102] S200: Determine the microorganism species according to the microorganism species information.

[0103] After acquiring the microbial species information of the object, the controller 400 can determine the microbial species according to the microbial species information. Exemplarily, the controller 400 can acquire the object image acquired by the image acquisition module, and determine the object spectral information according to the object image, and then input the object spectral information into the pre-trained microbial species recognition model to obtain the microbial species. Exemplarily, after the controller 400 obtains the object image, it can analyze the object image to obtain the original spectral data of the object, simplify the original spectral data of the object to obtain simplified spectral data, and then analyze the principal components of the simplified spectral information to obtain the principal component image, which is the object spectral information. The principal component image is input into the pre-trained microbial species recognition model, and the microbial species recognition model outputs the microbial species corresponding to the principal component image. By adopting the method of inputting the object spectral information into the pre-trained microbial recognition model for the identification of microbial species, the speed of microbial species identification can be improved, the identification accuracy can be improved, and the identification can be performed without direct contact with the object and the microorganism, thereby improving the reliability and convenience of the results of microbial species identification.

[0104] S300, controlling a sterilization device of the refrigerator to perform sterilization according to the types of microorganisms.

[0105] After the controller 400 obtains the type of microorganism, it can specifically control the sterilization device 300 according to the type of microorganism to sterilize different types of microorganisms in a targeted manner, thereby completely removing the microorganisms, enhancing the sterilization effect, and improving the refrigerator's preservation effect on food and other items.

[0106] Exemplarily, after obtaining the type of microorganism, the controller 400 can read the light radiation dose corresponding to the type of microorganism stored in the memory 500 to determine the light radiation dose required to eliminate the type of microorganism, and then control the blue light module 310 to emit blue light to achieve the light radiation dose, thereby ensuring that a sufficient number of microorganisms can be eliminated, thereby ensuring the effect of targeted sterilization of the microorganisms.

[0107] The types of microorganisms and their corresponding light radiation doses are shown in the following table. By way of example, the light radiation dose may be the radiation dose required to eliminate more than 90% of a certain type of microorganisms.

[0108] Microbial species Eliminate more than 90% of the required light radiation dose bacteria <![CDATA[100J / cm 2 ]]> Fungi <![CDATA[500J / cm 2 ]]> Bacteriophage <![CDATA[1000J / cm 2 ]]>

[0109] For example, when the controller 400 determines that the microorganisms on the items in the drawer body 124 are Staphylococcus aureus, Escherichia coli and other bacterial microorganisms, the light radiation dose is determined to be 100 J / cm 2 When the controller 400 determines that the microorganisms on the items in the drawer body 124 are yeast or other fungal microorganisms, the light radiation dose is determined to be 500 J / cm 2 When the controller 400 determines that the microorganisms on the items in the drawer body 124 are virus-like microorganisms such as bacteriophages, the light radiation dose is determined to be 1000 J / cm 2 .

[0110] After determining the light radiation dose, the controller 400 may generate a second control signal and send the second control signal to the blue light module 310, the second control signal being used to instruct the blue light module 310 to emit light. The blue light module 310 emits blue light in response to the second control signal to achieve the light radiation dose.

[0111] The controller 400 can also control the distance measuring module 320 to obtain the distance information of the object, determine the distance between the blue light module 310 and the object according to the distance information of the object, drive the light radiation flux of the blue light module 310 according to the distance, determine the sterilization time according to the light radiation flux and the light radiation dose, and control the blue light module 310 to emit light to achieve the sterilization time. The control method of the embodiment of the present application can obtain the distance between the blue light module 310 and the object through the object distance information measured by the distance measuring module 320, determine the light radiation flux irradiated to the object by the blue light module 310 according to the distance, and determine the sterilization time according to the light radiation flux and the light radiation dose, accurately control the light emission time of the blue light module 310, and reduce the energy consumption of the sterilization device 300 while ensuring the sterilization effect.

[0112] Exemplarily, after determining the type of microorganism or determining the light radiation dose, the controller 400 may generate a third control signal and send the third control signal to the ranging module 320, the third control signal being used to instruct the ranging module 320 to obtain the object distance information. The ranging module 320 measures the distance between it and the object in response to the third control signal to obtain the object distance information. The controller 400 obtains the object distance information, and in combination with the relative position between the ranging module 320 and the blue light module 310, the distance between the blue light module 310 and the object can be calculated. The controller 400 can determine the light radiation flux of the blue light module 310 based on the distance.

[0113] Exemplarily, the controller 400 may determine the sterilization duration according to the distance between the blue light module 310 and the object using the following formula.

[0114] P=0.556×h 2 -15.03×h+86.80 (1);

[0115] Where P is the light radiation flux, in mW / cm 2 ; h is the distance between the blue light module 310 and the object, in cm.

[0116] It can be seen from the above formula that the larger h is, the smaller P is, and the minimum value of P is greater than 0. Through the above formula, the optical radiation flux can be accurately calculated according to the distance between the blue light module 310 and the object, thereby improving the accuracy of the optical radiation flux and further improving the sterilization effectiveness of the sterilization device 300.

[0117] The controller 400 may determine the sterilization duration according to the light radiation flux and the light radiation dose. For example, the controller 400 may determine the sterilization duration according to the light radiation flux and the light radiation dose according to the following formula.

[0118] E = P × t (2);

[0119] Where E is the light radiation dose, in J / cm 2 ; P is the light radiation flux, in mW / cm 2 ; t is the sterilization time, the unit is s (seconds).

[0120] Through the above formula, the sterilization time can be accurately calculated according to the light radiation flux and the light radiation dose, thereby ensuring the accuracy of the sterilization time and further improving the sterilization effectiveness of the sterilization device 300.

[0121] Before controlling the distance measuring module 320 to obtain the distance information of the object, the controller 400 may also obtain the position information of the object through the information acquisition device 200, and control the angle adjustment device 600 according to the position information of the object, so that the distance measuring module 320 is opposite to the object. Exemplarily, when the information acquisition device 200 is an image acquisition module, the controller 400 may also analyze the image of the object after the image acquisition module acquires the image of the object to obtain the position information of the object. The controller 400 may control the angle adjustment device 600 according to the position information of the object, so that the distance measuring module 320 is opposite to the object. For example, the controller 400 may generate a fourth control signal according to the position information of the object, and send the fourth control signal to the angle adjustment device 600, and the fourth control signal is used to instruct the angle adjustment device 600 to rotate. In response to the fourth control signal, the angle adjustment device 600 drives the sterilization device 300 to rotate the first preset angle, so that the distance measuring module 320 is opposite to the object. The control method of the embodiment of the present application can adjust the angle of the distance measuring module 320 through the angle adjustment device 600 based on the position information of the object, so that the distance measuring module 320 is directly opposite to the object, thereby improving the accuracy of the object distance information measured by the distance measuring module 320, and further improving the calculation accuracy of the sterilization time.

[0122] After determining the sterilization duration, the controller 400 can also control the angle adjustment device 600 so that the blue light module 310 continues to rotate for the sterilization duration. Exemplarily, after determining the sterilization duration, the controller 400 can generate a rotation control signal and send the rotation control signal to the angle adjustment device 600, and the rotation control signal is used to indicate that the angle adjustment signal drives the sterilization device 300 to rotate in a cycle within the sterilization duration. The angle adjustment device 600 drives the sterilization device 300 to rotate in a cycle in response to the rotation control signal. The control method of an embodiment of the present application, after determining the sterilization duration, can drive the blue light module 310 to actively rotate in a cycle through the angle adjustment device 600, so that the blue light emitted by the blue light module 310 can irradiate the entire area of ​​the article to prevent the occurrence of sterilization dead corners, thereby improving the sterilization effect of the sterilization device 300.

[0123] In addition, the control method of the embodiment of the present application can control the distance measuring module 320 through the angle adjustment device 600 before controlling the distance measuring module 320 to obtain the distance information of the object, so that the distance measuring module 320 and the object are directly opposite; after determining the sterilization time, the blue light module 310 is controlled again through the angle adjustment device 600 so that the blue light module 310 can rotate cyclically. In this way, the angles of the distance measuring module 320 and the blue light module 310 can be controlled by the same angle adjustment device 600, and the angle adjustment processes of the distance measuring module 320 and the blue light module 310 will not interfere with each other, which reduces the structural complexity of the sterilization device 300 and reduces the cost of parts.

[0124] In some implementations of the embodiments of the present application, after the sterilization time is reached, the controller 400 can control the blue light module 310 to stop emitting light. For example, after the sterilization time is reached, the controller 400 can generate a fifth control signal and send the fifth control signal to the blue light module 310, and the fifth control signal is used to instruct the blue light module 310 to stop emitting light. The blue light module 310 stops emitting light in response to the fifth control signal, so that the sterilization device 300 completes the sterilization operation.

[0125] When the blue light module 310 emits light, the controller 400 may also control the reminder device 700 to send a reminder signal. Exemplarily, when the blue light module 310 emits light, the controller 400 may generate a sixth control signal and send the sixth control signal to the reminder device 700, the sixth control signal being used to instruct the reminder device 700 to send a reminder signal. The reminder device 700 sends a reminder signal in response to the fifth control signal to remind the user that the sterilization device 300 is performing a sterilization operation.

[0126] Exemplarily, the reminder device 700 can also perform a countdown operation to remind the user of the sterilization progress. For example, the controller 400 can control at least some of the multiple breathing lights to light up according to the light-emitting duration of the blue light module 310. For example, when the blue light module 310 just starts to light up, all the breathing lights light up; when the blue light module 310 lights up for the sterilization duration, all the breathing lights do not light up.

[0127] In some other implementations of the embodiments of the present application, after controlling the blue light module 310 to emit light, the controller 400 can also obtain the switch state of the storage drawer. If the storage drawer is in an open state, the blue light module 310 is controlled to be closed within a first preset time, and the current light emission time of the blue light module 310 is obtained. Both the first preset time and the current light emission time are shorter than the sterilization time. In this way, during the sterilization process, whether the blue light module 310 emits light can be associated with the switch state of the storage drawer to prevent the blue light module 310 from emitting light when the storage drawer is in an open state and failing to achieve the effect of eliminating microorganisms, thereby reducing the energy consumption of the sterilization device 300.

[0128] Exemplarily, after sending the second control signal to the blue light module 310, the controller 400 may obtain the switch state signal generated by the switch identification device, and determine the switch state of the storage drawer according to the switch state signal. If the switch state signal is an open signal, it is determined that the storage drawer is in an open state, and the drawer body 124 is pulled out from the drawer accommodating portion 123. The controller 400 sends a fifth control signal after the first preset time length to control the blue light module 310 to stop emitting light. Exemplarily, the first preset time length may be 1s to 5s.

[0129] Exemplarily, when the controller 400 issues the fifth control signal after the first preset time, it also issues a rotation stop signal and sends the rotation stop signal to the angle adjustment device 600, and the rotation stop signal is used to instruct the angle adjustment device 600 to stop driving the sterilization device 300 to rotate. In response to the rotation stop signal, the angle adjustment device 600 stops driving the sterilization device 300 to rotate, so that the blue light module 310 stops cyclically rotating.

[0130] If the storage drawer is in a closed state, the controller 400 can obtain the switch state of the storage drawer again after the second preset time. If the storage drawer is still in a closed state, the blue light module 310 is controlled to continue to emit light until the sterilization time is reached. Exemplarily, the second preset time can be 0 to 1min. In this way, the closed state of the storage drawer can be judged twice to improve the accuracy of determining that the storage drawer is in a closed state. Exemplarily, if the switch state signal generated by the switch identification device obtained by the controller 400 is a closed signal, it is determined that the storage drawer is in a closed state. After the second preset time, the controller 400 can obtain the signal generated by the switch identification device again to determine whether the storage drawer is still in a closed state, thereby improving the accuracy of determining that the storage drawer is in a closed state. If the signal is still a closed signal, it is determined that the storage drawer is still in a closed state, and the controller 400 sends a second control signal again to control the blue light module 310 to continue to emit light. The controller 400 continues to count on the current light emission time until the sterilization time is reached, and sends a fifth control signal to the blue light module 310 to control the blue light module 310 to stop emitting light.

[0131] For example, when it is determined that the storage drawer is still in a closed state and the controller 400 sends a second control signal again, the controller 400 can also generate a rotation control signal again so that the angle adjustment signal can drive the sterilization device 300 to rotate in a cycle again until the sterilization time is reached, thereby allowing the blue light module 310 to irradiate the entire area of ​​the article, preventing the occurrence of sterilization dead corners, and improving the sterilization effect of the sterilization device.

[0132] refer to Fig.11 Another embodiment of the present application further provides a refrigerator control method, the control method comprising the following steps:

[0133] S401, obtaining a sterilization start signal, and determining the type of microorganisms through an information collection device.

[0134] Exemplarily, the controller 400 may obtain a sterilization start signal. Exemplarily, the sterilization start signal may be generated by a user operating a sterilization button, or may be automatically generated by a signal generating device of the refrigerator.

[0135] Then, the controller 400 determines the types of microorganisms on the items in the refrigeration room through the information collection device 200 .

[0136] S402. The microorganism is a first type of microorganism.

[0137] The type of microorganism is identified to determine the type of microorganism on the article. Exemplarily, the microorganism can be a first type of microorganism, such as a bacterial microorganism.

[0138] S403, reading a first light radiation dose corresponding to a first type of microorganism.

[0139] The controller 400 reads the first light radiation dose corresponding to the first type of microorganisms stored in the memory 500 .

[0140] S404: Measure the distance to the object and determine the radiation flux.

[0141] The controller 400 may control the distance measuring module 320 to measure the distance between the distance measuring module 320 and the object to determine the radiation flux irradiated from the blue light module 310 to the object.

[0142] S405. Calculate a first sterilization duration according to the first light radiation dose and the light radiation flux.

[0143] The controller 400 calculates a first sterilization duration according to the first light radiation dose and the light radiation flux, and controls the blue light module 310 to emit light according to the first sterilization duration to sterilize the first type of microorganisms.

[0144] S406. The microorganism is a second type of microorganism.

[0145] The type of the microorganism is identified to determine the type of the microorganism on the article. Exemplarily, the microorganism can be a second type of microorganism, such as a fungus microorganism.

[0146] S407 , reading a second light radiation dose corresponding to the second type of microorganisms.

[0147] The controller 400 reads the second light radiation dose corresponding to the second type of microorganisms stored in the memory 500 .

[0148] S408: Measure the distance to the object and determine the light radiation flux.

[0149] The controller 400 may control the distance measuring module 320 to measure the distance between the distance measuring module 320 and the object to determine the light radiation flux irradiated from the blue light module 310 to the object.

[0150] S409, calculating a second sterilization time according to the second light radiation dose and the light radiation flux.

[0151] The controller 400 calculates a second sterilization duration according to the second light radiation dose and the light radiation flux, and controls the blue light module 310 to emit light according to the second sterilization duration to sterilize the second type of microorganisms.

[0152] S410. The microorganism is a third type of microorganism.

[0153] The type of the microorganism is identified to determine the type of the microorganism on the article. Exemplarily, the microorganism may be a third type of microorganism, such as a virus-like microorganism.

[0154] S411 , reading a third light radiation dose corresponding to a third type of microorganism.

[0155] The controller 400 reads the third light radiation dose corresponding to the third type of microorganisms stored in the memory 500 .

[0156] S412. Measure the distance to the object and determine the radiation flux.

[0157] The controller 400 may control the distance measuring module 320 to measure the distance between the distance measuring module 320 and the object to determine the light radiation flux irradiated from the blue light module 310 to the object.

[0158] S413. Calculate a third sterilization time according to the third light radiation dose and the third light radiation flux.

[0159] The controller 400 calculates a third sterilization duration according to the third light radiation dose and the light radiation flux, and controls the blue light module 310 to emit light according to the third sterilization duration to sterilize the third type of microorganisms.

[0160] S414: Prompt the user through the reminder device to count down the sterilization, and remind the user to open the storage drawer after the sterilization is completed.

[0161] The controller 400 may also send a first reminder message to the user through the reminder device 700 to remind the user that the sterilization device 300 is performing a sterilization operation. The controller 400 may also perform a sterilization countdown to inform the user of the current duration and remaining duration of the sterilization operation performed by the sterilization device 300. After the sterilization is completed, the controller 400 may also send a second reminder message to the user through the reminder device 700 to remind the user that the storage drawer can be opened.

[0162] Repeat the above steps S401 to S414.

[0163] The embodiments of the present application also provide a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the methods in the above embodiments.

[0164] The embodiment of the present application also provides a program product, which includes an execution instruction, which is stored in a readable storage medium. At least one control module of the display device can read the execution instruction from the readable storage medium, and at least one control module executes the execution instruction so that the display device implements the handwriting erasing method provided by the various embodiments described above.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0166] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body having at least one refrigeration compartment for accommodating items; An information collection device, which is used to collect microbial species information of an object, wherein the microbial species information is used to determine the microbial species; A sterilization device, which is used for sterilization; The controller is electrically connected to the information collection device and the sterilization device, and is configured to: determine the type of microorganism after obtaining the microorganism type identification information, and control the sterilization device to perform sterilization according to the microorganism type.

2. The refrigerator according to claim 1, characterized in that: The information acquisition device includes an image acquisition module, the image acquisition module is used to acquire an image of an object located in the refrigeration room, the image of the object is used to determine the spectral information of the object, and the spectral information of the object is the identification information of the microorganism species; The controller is electrically connected to the image acquisition module, and is further configured to: determine the spectral information of the object after acquiring the image of the object, and input the spectral information of the object into a pre-trained microorganism species recognition model to obtain the microorganism species.

3. The refrigerator according to claim 1, characterized in that: The sterilization device includes a blue light module electrically connected to the controller, for emitting blue light to kill microorganisms; The refrigerator further comprises a memory electrically connected to the controller, wherein the memory is used to store the light radiation dose corresponding to the microorganism species; The controller is further configured to determine a light radiation dose according to the type of microorganism, and control the blue light module to emit blue light to achieve the light radiation dose.

4. The refrigerator according to claim 3, characterized in that: The sterilization device further comprises a distance measuring module electrically connected to the controller, for obtaining object distance information, wherein the object distance information is used to determine the distance between the blue light module and the object; The memory is also used to store the optical radiation flux of the blue light module corresponding to the distance; The controller is also configured to: control the ranging module to obtain the object distance information, determine the distance between the blue light module and the object according to the object distance information, determine the light radiation flux of the blue light module according to the distance, determine the sterilization time according to the light radiation flux and the light radiation dose, and control the blue light module to emit light to reach the sterilization time.

5. The refrigerator according to claim 4, characterized in that: The controller determines the light radiation flux according to the distance according to the following formula: P=0.556×h 2 -15.03×h+86.80; Wherein, P is the light radiation flux, and h is the distance between the blue light module and the object.

6. The refrigerator according to claim 4, characterized in that: The controller determines the sterilization duration according to the light radiation flux and the light radiation dose according to the following formula: E = P × t; Wherein, E is the light radiation dose, P is the light radiation flux, and t is the sterilization time.

7. The refrigerator according to claim 4, characterized in that: The refrigerator further comprises an angle adjustment device electrically connected to the controller, the angle adjustment device being connected to the blue light module and the distance measuring module and being used to adjust the angles of the blue light module and the distance measuring module; The controller is also configured to: before controlling the distance measuring module to obtain the distance information of the object, obtain the object position information through the information acquisition device, and control the angle adjustment device according to the object position information so that the distance measuring module is opposite to the object; and after determining the sterilization time, control the angle adjustment device so that the blue light module continues to rotate for the sterilization time.

8. The refrigerator according to claim 4, characterized in that: The refrigerating room is provided with a storage drawer for accommodating the articles; the refrigerator further comprises a switch identification device electrically connected to the controller, the switch identification device being used to identify the switch state of the storage drawer; The controller is also configured to: after controlling the blue light module to emit light, obtain the switch state of the storage drawer; if the storage drawer is in an open state, control the blue light module to be closed within a first preset time period, and obtain the current light emission time period of the blue light module; wherein, the first preset time period and the current light emission time period are both shorter than the sterilization time period.

9. The refrigerator according to claim 8, characterized in that: The controller is also configured to: if the storage drawer is in a closed state, obtain the switch state of the storage drawer again after a second preset time period; if the storage drawer is still in a closed state, control the blue light module to continue to emit light until the sterilization time period is reached.

10. A method for controlling a refrigerator, characterized in that: The refrigerator comprises a box, an information collection device and a sterilization device, wherein the box is configured with at least one refrigeration compartment for accommodating articles; the information collection device is used to obtain microbial species information of the articles, and the microbial species information is used to determine the microbial species; The sterilization device is used for sterilization; The method comprises: Obtain information about the microbial species of an item; Determining the microorganism species according to the microorganism species information; The sterilization device of the refrigerator is controlled to perform sterilization according to the types of microorganisms.

Images