CN110487018B - Method and device for controlling freezing of food in refrigeration equipment and computer storage medium - Google Patents
Method and device for controlling freezing of food in refrigeration equipment and computer storage medium Download PDFInfo
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- CN110487018B CN110487018B CN201810459501.4A CN201810459501A CN110487018B CN 110487018 B CN110487018 B CN 110487018B CN 201810459501 A CN201810459501 A CN 201810459501A CN 110487018 B CN110487018 B CN 110487018B
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- 238000007710 freezing Methods 0.000 title claims abstract description 223
- 235000013305 food Nutrition 0.000 title claims abstract description 210
- 230000008014 freezing Effects 0.000 title claims abstract description 172
- 238000005057 refrigeration Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 76
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 182
- 230000009471 action Effects 0.000 claims abstract description 83
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000010801 machine learning Methods 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
The invention discloses a method and a device for controlling food freezing in refrigeration equipment and a computer readable storage medium, and belongs to the technical field of refrigeration equipment. The refrigerating apparatus includes: the method comprises the following steps of: determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray; and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, carrying out ultrasonic wave freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves. Therefore, through ultrasonic freezing treatment, heat transfer is enhanced in the freezing process of the food materials, the food materials are quickly frozen, and the loss of nutrition of the food materials can be reduced.
Description
Technical Field
The present invention relates to the field of refrigeration equipment technology, and in particular, to a method and an apparatus for controlling freezing of food material in a refrigeration equipment, and a computer-readable storage medium.
Background
The food freezing preservation is an efficient food preservation method, can preserve high-quality food, does not pollute the food, and is widely applied to daily life.
At present, a refrigerator is widely used as a device for freezing and preserving food materials. After the food material is placed in the freezing area of the refrigerator, the food material is frozen until the temperature of the food material is consistent with that of the freezing area of the refrigerator. Generally, in order to accelerate the freezing overshoot of the food materials, a method of rapidly blowing cold air and air can be adopted, but the method easily causes the evaporation of water on the surface of the food materials, causes the dry loss, causes the taste of the food materials to be stubborn and causes the loss of nutrition.
Disclosure of Invention
The embodiment of the invention provides a method and a device for controlling freezing of food materials in refrigeration equipment and a computer storage medium. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a method of food freezing control in a refrigeration apparatus, the refrigeration apparatus comprising: the method comprises the following steps of:
determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray;
and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, carrying out ultrasonic wave freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves.
In an embodiment of the present invention, the determining the ultrasonic action time corresponding to the physical information of the food material in the quick-freezing tray includes:
acquiring physical information of food materials in the quick-freezing tray, wherein the physical information comprises: one or more of weight information, thickness information, and area information;
and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
In an embodiment of the present invention, the controlling the ultrasonic wave generating module and the ultrasonic wave transducer to generate the ultrasonic wave includes:
controlling a first ultrasonic vibrator to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by the ultrasonic generating module; or the like, or, alternatively,
controlling a second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or the like, or, alternatively,
and alternately controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to preset time.
In an embodiment of the present invention, after the stopping of generating the ultrasonic wave, the method further includes:
and controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with a set freezing temperature.
According to a second aspect of the embodiments of the present invention, there is provided an apparatus for food freezing control in a refrigeration apparatus, the refrigeration apparatus including: ultrasonic wave generation module, ultrasonic vibrator to and the bottom has installed the quick-freeze dish of ultrasonic vibrator, the device includes:
the determining unit is used for determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray;
and the first freezing control unit is used for controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, carrying out ultrasonic wave freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves.
In an embodiment of the present invention, the determining unit is specifically configured to obtain physical information of food materials in the quick-freezing tray, where the physical information includes: one or more of weight information, thickness information, and area information; and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
In an embodiment of the present invention, the first freezing control unit specifically controls the first ultrasonic vibrator to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by the ultrasonic wave generation module; or controlling a second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or alternatively controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to preset time.
In an embodiment of the present invention, the apparatus further includes:
and the refrigeration control unit is used for controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
According to a third aspect of the embodiments of the present invention, there is provided an apparatus for food freezing control in a refrigeration apparatus, the refrigeration apparatus including: ultrasonic wave generation module, ultrasonic vibrator to and the bottom has installed the quick-freeze dish of ultrasonic vibrator, the device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray;
and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, carrying out ultrasonic wave freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves.
According to a fourth aspect of embodiments of the present invention, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the above-described method.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, after the refrigeration equipment determines the ultrasonic wave action time corresponding to the physical information of the food materials in the quick-freezing tray, the ultrasonic wave generation module and the ultrasonic wave vibrator can generate ultrasonic waves to freeze the food materials until the preset conditions corresponding to the ultrasonic wave action time are met, so that heat transfer is strengthened in the freezing process of the food materials, the food materials are quickly frozen, the nutrition loss of the food materials can be reduced, and the freshness and the taste of the food materials are ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram illustrating a food material freezing process according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a refrigeration unit according to an exemplary embodiment;
FIG. 3 is a bottom schematic view of a chill pan in a refrigeration appliance, according to an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of food material freezing control in a refrigeration appliance according to an exemplary embodiment;
FIG. 5 is a flow chart illustrating a method of food material freezing control in a refrigeration appliance according to an exemplary embodiment;
FIG. 6 is a flow chart illustrating a method of food material freezing control in a refrigeration appliance according to an exemplary embodiment;
FIG. 7 is a flow chart illustrating a method of food material freezing control in a refrigeration appliance according to an exemplary embodiment;
FIG. 8 is a flow chart illustrating a method of food material freezing control in a refrigeration appliance according to an exemplary embodiment;
FIG. 9 is a block diagram illustrating a food freezing control arrangement in a refrigeration appliance, according to an exemplary embodiment;
FIG. 10 is a block diagram illustrating a food freezing control arrangement in a refrigeration appliance, according to an exemplary embodiment;
fig. 11 is a block diagram illustrating a food freezing control apparatus in a refrigeration appliance according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
The process of freezing food materials in the refrigeration equipment can comprise the following steps: cooling, freezing and storing in frozen state for 3 stages.
Fig. 1 is a schematic diagram illustrating a process of freezing food material according to an exemplary embodiment. As shown in fig. 1, the first stage is a cooling stage, in which the temperature of the food material is rapidly decreased until it is reduced to the crystallization temperature. The second stage is a freezing stage: the stage is a maximum ice crystal generation zone, generally at-5-0 ℃, more than 80% of water in the food material is frozen in the stage, the stage has the maximum heat load, and relatively long time is needed. The third stage is a freezing stage, in which the frozen food material is continuously cooled to the final temperature.
In the second stage, if the freezing speed is slow, the vapor pressure of saturated water inside and outside the cells of the food material is different, so that the water inside the cells is diffused outwards and forms larger ice crystals, and the cells are extruded and deformed by the freezing and expansion of the water to cause the cell rupture, so that the juice loss is serious when the food material is unfrozen; when the ice crystals are frozen rapidly, the formation speed of the ice crystals is higher than the diffusion speed of water, the ice crystals can be uniformly distributed inside and outside cells, the cells cannot be broken, and the juice loss is relatively less. Therefore, the food materials are quickly frozen, the loss of nutrition of the food materials can be reduced, and the freshness and the taste of the food materials are ensured.
The food materials are quickly frozen, namely, the heat transfer needs to be enhanced in the freezing process of the food materials. And the low-frequency ultrasonic technology can realize the enhanced heat transfer in the food freezing process. The formation of crystal nucleus not only can be promoted to the physical effect (cavitation effect) of ultrasonic wave, and the microbubble that produces by cavitation effect can regard as new crystal nucleus moreover, changes the nucleation temperature of eating the inside moisture of material, reduces and eats the material supercooling degree, promotes the quick nucleation of ice crystal. Therefore, the cavity effect can accelerate the heat transfer inside the food material, and the cooling speed of the food material is accelerated. Meanwhile, the ultrasonic waves have a crushing effect on larger ice crystals to form small and uniform ice crystals, so that damage to cells is reduced, and freshness of food materials is guaranteed.
In the embodiment of the invention, after the refrigeration equipment determines the ultrasonic wave action time corresponding to the physical information of the food materials in the quick-freezing tray, the ultrasonic wave generating module and the ultrasonic wave vibrator can generate ultrasonic waves to freeze the food materials until the preset condition corresponding to the ultrasonic wave action time is met, so that heat transfer is enhanced in the freezing process of the food materials, the food materials are quickly frozen, the nutrition loss of the food materials can be reduced, and the freshness and the taste of the food materials are ensured.
Fig. 2 is a schematic view illustrating a structure of a refrigerating apparatus according to an exemplary embodiment. Fig. 3 is a bottom schematic view of a quick chill tray in a refrigeration apparatus according to an exemplary embodiment. As shown in fig. 2 and 3, the refrigerating apparatus includes a freezing chamber 101, and the freezing chamber 101 is located in the temperature-variable chamber 100 of the refrigerating apparatus, but of course, the freezing chamber 101 may be a part of the temperature-variable chamber 100, and may also be the temperature-variable chamber 100. The freezing chamber 101 includes a quick freezing tray, and an ultrasonic vibrator is installed at the bottom of the quick freezing tray. As shown in fig. 3, the ultrasonic vibrator may include two types of vibrators, one type being a transducer 201 and one type being a piezoelectric wafer 202. Of course, the embodiments of the present invention are not limited thereto, and may be only one type of oscillator, or may be two or more types of oscillators. The refrigeration equipment also comprises an ultrasonic generation module for generating ultrasonic signals, and specific positions can be distributed according to different types of refrigeration equipment, which are not listed in sequence.
The refrigeration equipment comprises the ultrasonic generation module, the ultrasonic vibrator and the quick-freezing plate with the ultrasonic vibrator arranged at the bottom, so that the food can be subjected to ultrasonic freezing treatment through ultrasonic waves in the food freezing process, the food is frozen, the food nutrition loss is reduced, the freshness and the taste of the food are guaranteed
Fig. 4 is a flowchart illustrating a method for controlling freezing of food material in a refrigeration device according to an exemplary embodiment. As shown in fig. 4, the process of food freezing control in the refrigerating apparatus includes:
step 401: and determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
In the embodiment of the present invention, the physical information of the food material may include one or more of weight information, thickness information, and area information. Therefore, the physical information of the food materials in the quick-freezing tray can be obtained firstly, and then the ultrasonic wave action time corresponding to the obtained physical information can be determined according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
Step 402: the ultrasonic wave generating module and the ultrasonic wave vibrator are controlled to generate ultrasonic waves, the food materials are subjected to ultrasonic wave freezing treatment, and when the preset condition corresponding to the action time of the ultrasonic waves is met, the ultrasonic waves are stopped being generated.
In the embodiment of the invention, the low-frequency ultrasonic technology can be adopted to realize the enhanced heat transfer in the food material freezing process. Therefore, the ultrasonic wave generating module is controlled to generate the ultrasonic wave signal, and the ultrasonic wave oscillator is controlled to generate the ultrasonic wave according to the ultrasonic wave signal, so that the food material can be subjected to ultrasonic wave freezing treatment.
Due to the fact that the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray is determined, when the preset condition corresponding to the action time of the ultrasonic waves is met, the ultrasonic wave generating module and the ultrasonic wave vibrator can be controlled to stop generating the ultrasonic waves, and the ultrasonic wave freezing treatment process is finished.
Therefore, the strengthened heat transfer in the food material freezing process can be realized through ultrasonic wave freezing treatment, the freezing of food materials is accelerated, the loss of nutrition of the food materials in the food material freezing process can be reduced, and the freshness and the taste of the food materials are guaranteed.
The way of satisfying the preset condition corresponding to the ultrasonic wave action time may be various, for example: when the time of the ultrasonic wave freezing treatment is equal to the ultrasonic wave action time, the preset condition corresponding to the ultrasonic wave action time is determined to be met. Or when the time of the ultrasonic freezing treatment is longer than the ultrasonic acting time, determining that the preset condition corresponding to the ultrasonic acting time is met. Or when the time of the ultrasonic freezing treatment is longer than or equal to the ultrasonic acting time and the temperature of the food material is less than or equal to the set temperature, determining that the preset condition corresponding to the ultrasonic acting time is met. Different conditions are met, and the freezing control process of different food materials is corresponded.
Fig. 5 is a flowchart illustrating a method for controlling freezing of food material in a refrigeration device according to an exemplary embodiment. As shown in fig. 5, the process of food freezing control in the refrigerating apparatus includes:
step 501: and determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
Step 502: and controlling the ultrasonic wave generation module and the ultrasonic wave vibrator to generate ultrasonic waves, freezing the food materials by the ultrasonic waves, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves.
Here, when the time of the ultrasonic freezing treatment is equal to the ultrasonic wave application time, or the time of the ultrasonic freezing treatment is longer than the ultrasonic wave application time, that is, the time of the ultrasonic freezing treatment matches the ultrasonic wave application time, the generation of the ultrasonic wave can be stopped.
Therefore, in the embodiment, once the ultrasonic wave freezing processing time is matched with the ultrasonic wave acting time, the ultrasonic wave can be stopped from being generated, the ultrasonic wave control process is simple, and the resources controlled by the ultrasonic wave are saved.
Of course, in another embodiment of the present invention, the ultrasonic wave can be controlled according to the ultrasonic wave action time and the food material temperature.
Fig. 6 is a flowchart illustrating a method for controlling freezing of food material in a refrigeration device according to an exemplary embodiment. As shown in fig. 6, the process of food freezing control in the refrigerating apparatus includes:
step 601: and determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
Step 602: the ultrasonic wave generating module and the ultrasonic wave vibrator are controlled to generate ultrasonic waves, the food materials are subjected to ultrasonic wave freezing treatment, and when the ultrasonic wave freezing treatment time is longer than or equal to the ultrasonic wave acting time and the temperature of the food materials is smaller than or equal to the set temperature, the ultrasonic wave generation is stopped.
In this embodiment, whether to stop generating the ultrasonic waves can be determined according to the action time of the ultrasonic waves and the temperature of the food material. Since the temperature of the food material in the cooling section is rapidly reduced, when the food material enters the freezing section, the temperature is relatively stable and basically stabilized at a temperature which can be a freezing point temperature because the food material enters the maximum ice crystal generation zone, as shown in fig. 1, and therefore, whether the food material enters the freezing section can be judged through temperature detection of the food material. In addition, a plurality of temperature sensors are arranged inside and outside the food materials to detect temperature changes, so that the temperatures of different positions of the food materials are found to reach the freezing point temperature almost at the same time. Therefore, a temperature can be preset according to the type of the food material, and the preset temperature is matched with the freezing point temperature, so that once the temperature of the food material is less than or equal to the preset temperature, the food material can be ensured to enter the freezing stage, and therefore, when the ultrasonic wave freezing treatment time is greater than or equal to the ultrasonic wave action time and the temperature of the food material is less than or equal to the preset temperature, the ultrasonic wave generation is stopped.
Therefore, in the embodiment, the temperature of the food material is determined to be matched with the temperature of the freezing point, so that the food material is ensured to enter the freezing section, and the effect of ultrasonic freezing treatment is further ensured.
Of course, the food material freezing process also has a freezing section, that is, the refrigeration equipment correspondingly presets a freezing temperature, and therefore, after stopping generating the ultrasonic wave, the method further comprises the following steps: and controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature. Thereby, the process of freezing the food material is completed.
In the embodiment of the present invention, the physical information of the food material includes: one or more of weight information, thickness information, and area information. Each kind of physical information can be acquired through corresponding acquisition equipment after the food materials are put into the freezing chamber, or acquired through input information of a user on an interactive interface.
The weight sensor can be arranged on the support frame of the freezing chamber where the quick-freezing tray is located, and therefore weight information of food materials in the quick-freezing tray can be acquired through the weight sensor. Then, the correspondence between the stored weight information and the ultrasonic wave action time determines the ultrasonic wave action time corresponding to the acquired weight information.
The ultrasonic ranging or laser ranging sensor is arranged at the corresponding position of the top of the freezing chamber where the quick-freezing tray is located, the thickness of the quick-freezing food material is calculated by monitoring the distance between the detection source and the top of the food material, and then the corresponding ultrasonic action time is determined. Because the frozen quick-frozen food materials and the thickness of the food materials are in inverse proportional relation, through a plurality of tests, the data of the thickness and the freezing time are collected, the corresponding relation between the thickness information and the ultrasonic wave action time is established and stored, and therefore after the thickness information of the food materials in the quick-freezing tray is obtained, the corresponding ultrasonic wave action time can be determined. The distance measuring sensor can calculate the distance H2 from the distance measuring sensor to the top of the food material by detecting the time of the return signal and the emission signal, and the distance from the distance measuring sensor to the bottom of the freezing chamber is constant, namely H1, so that the thickness H of the food material can be obtained as H1-H2.
The camera used for collecting the area of food materials is arranged at the corresponding position of the top of the freezing chamber where the quick-freezing tray is located, image recognition and operation are carried out by collecting the food material images, the area information of the food materials in the quick-freezing tray is obtained, and then the ultrasonic wave action time corresponding to the obtained area information is determined according to the corresponding relation between the stored area information and the ultrasonic wave action time.
Of course, the physical information includes: one or more of the weight information, the thickness information and the area information, so that the two or three modes can be combined, and then the ultrasonic wave action time corresponding to the acquired physical information is determined according to the corresponding relation between the stored physical information and the ultrasonic wave action time, and the specific process is not illustrated. Therefore, the correspondence between the physical information and the ultrasonic wave action time needs to be preserved in advance. Through repeated experiments, the corresponding relation between the physical information of the food material and the action time of the ultrasonic waves is obtained and stored. Or performing multiple times of machine learning according to the type, freshness and physical information of the food material, and obtaining and storing the corresponding relation between the physical information of the food material and the action time of the ultrasonic waves. Thus, determining the ultrasonic action time corresponding to the physical information of the food material in the quick-freezing tray may further comprise: inputting the type, freshness and physical information of the food materials into a stored machine learning model, and determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
In this embodiment, the ultrasonic vibrator may include a first vibrator and a second vibrator, wherein the first ultrasonic vibrator may generate a first ultrasonic wave in a first direction according to the ultrasonic signal from the ultrasonic generation module, and the second ultrasonic vibrator may generate a second ultrasonic wave in a second direction according to the ultrasonic signal from the ultrasonic generation module. Therefore, controlling the ultrasonic wave generation module and the ultrasonic wave transducer to generate the ultrasonic wave may include: only the first ultrasonic vibrator is controlled to generate ultrasonic waves, only the second vibrator is controlled to generate ultrasonic waves, or the first ultrasonic vibrator and the second ultrasonic vibrator are controlled alternately to generate ultrasonic waves. Namely, the control of the ultrasonic wave generation module and the ultrasonic wave transducer to generate ultrasonic waves includes: controlling a first ultrasonic vibrator to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by an ultrasonic wave generating module; or controlling the second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or alternatively controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to the preset time.
Because the vibration modes of the first vibrator and the second vibrator are different, the ultrasonic generated by the first vibrator has good first-direction (for example, longitudinal) propagation performance, namely, good penetration depth; the ultrasonic generated by the second vibrator has good propagation property in the second direction (such as radial direction), namely, the horizontal propagation surface is wide. The two are alternately combined for use, so that the food material is more uniformly subjected to the ultrasonic action.
The following operational flows are grouped into specific embodiments to illustrate the methods provided by the embodiments of the present disclosure.
The refrigeration device may be a refrigerator, freezer, or other device that can freeze preserve food material. In this embodiment, the refrigeration apparatus is a refrigerator, a freezing chamber is arranged in the refrigerator, a quick-freezing tray is arranged in the freezing chamber, and two types of ultrasonic vibrators are mounted at the bottom of the quick-freezing tray, and as shown in fig. 3, the two types of ultrasonic vibrators include 4 ultrasonic vibrators, two of which are approximately horn-shaped transducers with the same model, and the other two types of ultrasonic vibrators are wafer-shaped piezoelectric wafers with the same model. The same vibrator is in the same phase when working, and the distance between two vibration sources is even times of half wavelength. In this embodiment, the frequency of the ultrasonic signal generated by the ultrasonic generation module in the refrigerator is preferably 30 to 100KHz, for example: 30KHz, 35KHz, 50KHz, 80KHz or 100 KHz. The physical information of the food materials is the weight information of the food materials, namely a weight sensor is arranged on a support frame of a freezing chamber where the quick-freezing plate is located.
Fig. 7 is a flowchart illustrating a method for controlling freezing of food material in a refrigeration device according to an exemplary embodiment, and as shown in fig. 7, the process of controlling freezing of food material in the refrigeration device includes:
step 701: first weight information of food materials in the quick-freezing tray is obtained through a weight sensor.
Step 702: and determining a first ultrasonic action time corresponding to the acquired first weight information according to a first corresponding relation between the stored weight information and the ultrasonic action time.
Step 703: the transducer is controlled to generate a first ultrasonic wave in the longitudinal direction according to the ultrasonic wave signal sent by the ultrasonic wave generating module.
Step 704: periodically acquiring the time of the ultrasonic freezing process, and determining whether the time of the ultrasonic freezing process is greater than or equal to the first ultrasonic action time? If yes, go to step 705, otherwise, go back to step 703.
Step 705: and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to stop generating the ultrasonic wave.
Step 706: and controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
In this embodiment, the food material can be subjected to ultrasonic freezing treatment by the first ultrasonic wave in the longitudinal direction, and when the time of the ultrasonic freezing treatment matches the action time of the ultrasonic wave, the generation of the ultrasonic wave can be stopped. Therefore, the reinforced heat transfer in the food material freezing process can be realized, the freezing of food materials is accelerated, the nutrition loss of the food materials in the food material freezing process can be reduced, and the freshness and the taste of the food materials are guaranteed. And the ultrasonic control process is simple, and the resources controlled by the ultrasonic are saved.
In another embodiment of the present invention, the refrigerating device is a cavity of a variable temperature chamber of a refrigerator, the cavity of the variable temperature chamber is provided with a quick-freezing tray, and the bottom of the quick-freezing tray is provided with two types of ultrasonic vibrators, which can be shown in fig. 3 and include 4 ultrasonic vibrators, two of which are approximately horn-shaped transducers with the same model, and the other two are wafer-shaped piezoelectric wafers with the same model. The same vibrator is in the same phase when working, and the distance between two vibration sources is even times of half wavelength. In this embodiment, the frequency of the ultrasonic signal generated by the ultrasonic generation module in the refrigerator is preferably 30 to 100 KHz. The set temperature is freezing point temperature, typically-1 deg. -5 deg., i.e. the set temperature can be-1 deg. -2 deg. -3 deg. -4 deg. -5 deg., etc., where the set temperature is-1 deg., and the set freezing temperature match can be-18 deg.. An infrared temperature sensor is arranged above the freezing chamber where the quick-freezing tray is located, and can detect the temperature information of food materials in the quick-freezing tray. As can be seen in fig. 2, there is an infrared temperature sensor 102 on the freezing chamber 101. And a laser ranging sensor is arranged above the freezing chamber where the quick-freezing tray is located and used for detecting the thickness information of food materials in the quick-freezing tray.
Fig. 8 is a flowchart of a method for controlling freezing of food material in a refrigeration device according to an exemplary embodiment, and as shown in fig. 8, the process of controlling freezing of food material in the refrigeration device includes:
step 801: and acquiring second thickness information of the food materials in the quick-freezing tray through a laser ranging sensor.
Step 802: and determining second ultrasonic action time corresponding to the acquired second thickness information according to a second corresponding relation between the stored thickness information and the ultrasonic action time.
Step 803: the transducer is controlled to operate for 30S according to the ultrasonic signal sent by the ultrasonic wave generation module, and first ultrasonic waves in the longitudinal direction are generated.
A first timer may be employed to time the operation of the ultrasonic transducer.
Step 804: the piezoelectric wafer is controlled to operate for 20S according to the ultrasonic signal sent by the ultrasonic wave generating module, a second ultrasonic wave in the radial direction is generated, and the process goes to step 803.
A second timer may be employed to time the operation of the ultrasonic transducer.
Step 805: in the process of performing steps 803 and 804, the time of the ultrasonic wave freezing process is periodically acquired, and it is determined whether the time of the ultrasonic wave freezing process is greater than or equal to the second ultrasonic wave action time? If yes, go to step 806, otherwise, go back to step 803.
Step 806: regularly acquiring a temperature value T of food materials in the quick-freezing tray through an infrared temperature sensor, and judging whether T ≦ -1 is satisfied? If yes, go to step 807, otherwise, go back to step 803.
For example, at an interval of 5min, that is, a period of 5min, a temperature value T of the food material may be obtained, and when T ≦ -1, it is determined that the freezing stage has been entered, step 807 may be executed.
Step 807: and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to stop generating the ultrasonic wave.
Step 808: and controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
As can be seen, in the present embodiment, the food material can be subjected to the ultrasonic freezing treatment alternately by the first ultrasonic wave in the longitudinal direction and the second ultrasonic wave in the radial direction, so that the food material is more uniformly subjected to the ultrasonic action. And after the temperature of the food material is determined to be less than the freezing point temperature, the generation of the ultrasonic wave can be stopped. Therefore, the food freezing process can be ensured to be entered by the ultrasonic action, the strengthened heat transfer in the food freezing process is realized, the food is frozen, the food nutrition loss in the food freezing process can be reduced, and the freshness and the taste of the food are ensured.
In the above embodiment, step 804 may be executed first, and then step 803 is executed, so that the transducer and the piezoelectric wafer are controlled alternately. Of course, step 806 may be performed first, and step 805 is not specifically listed again.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
According to the process of food material freezing control in the refrigeration equipment, a device for food material freezing control in the refrigeration equipment can be constructed.
Fig. 9 is a block diagram illustrating a food freezing control apparatus in a refrigeration appliance according to an exemplary embodiment. The refrigerating apparatus includes: as shown in fig. 9, the apparatus comprises an ultrasonic generation module, an ultrasonic vibrator, and a quick-freezing tray having the ultrasonic vibrator mounted on the bottom thereof: a determination unit 910 and a freezing control unit 920, wherein,
the determining unit 910 is configured to determine an ultrasonic action time corresponding to the physical information of the food material in the quick-freezing tray.
And a freezing control unit 920, configured to control the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, perform ultrasonic wave freezing processing on the food material, and stop generating the ultrasonic waves when a preset condition corresponding to the ultrasonic wave action time is met.
In an embodiment of the present invention, the determining unit 910 is specifically configured to obtain physical information of food materials in the quick-freezing tray, where the physical information includes: one or more of weight information, thickness information, and area information; and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
In an embodiment of the present invention, the freezing control unit 920 specifically controls the first ultrasonic transducer to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by the ultrasonic wave generating module; or controlling the second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or alternatively controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to the preset time.
In an embodiment of the present invention, the apparatus further includes:
and the refrigeration control unit is used for controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
Fig. 10 is a block diagram illustrating a food freezing control apparatus in a refrigeration appliance according to an exemplary embodiment. The refrigerating apparatus includes: as shown in fig. 10, the apparatus comprises an ultrasonic generation module, an ultrasonic vibrator, and a quick-freezing tray having an ultrasonic vibrator mounted on the bottom thereof: a determination unit 1010 and a first freeze control unit 1020, wherein,
the determining unit 1010 is used for determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
The first freezing control unit 1020 is configured to control the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, perform ultrasonic wave freezing processing on the food material, and stop generating the ultrasonic waves when the time of the ultrasonic wave freezing processing matches the ultrasonic wave action time.
In an embodiment of the present invention, the determining unit 1010 is specifically configured to obtain physical information of food materials in the quick-freezing tray, where the physical information includes: one or more of weight information, thickness information, and area information; and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
In an embodiment of the present invention, the first freezing control unit 1020 specifically controls the first ultrasonic transducer to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by the ultrasonic wave generating module; or controlling the second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or alternatively controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to the preset time.
In an embodiment of the present invention, the apparatus further includes:
and the refrigeration control unit is used for controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
Fig. 11 is a block diagram illustrating a food freezing control apparatus in a refrigeration appliance according to an exemplary embodiment. The refrigerating apparatus includes: as shown in fig. 11, the apparatus comprises an ultrasonic generation module, an ultrasonic vibrator, and a quick-freezing tray having an ultrasonic vibrator mounted on the bottom thereof: a determination unit 1110 and a second freeze control unit 1120, wherein,
the determining unit 1110 is used for determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray.
The second freezing control unit 1120 is configured to control the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, perform ultrasonic wave freezing processing on the food material, and stop generating the ultrasonic waves when the ultrasonic wave freezing processing time is longer than or equal to the ultrasonic wave action time and the temperature of the food material is less than or equal to the set temperature.
In an embodiment of the present invention, the determining unit 1120 is specifically configured to obtain physical information of food materials in the quick-freezing tray, where the physical information includes: one or more of weight information, thickness information, and area information; and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
In an embodiment of the present invention, the second freezing control unit 1120 specifically controls the first ultrasonic transducer to generate a first ultrasonic wave in a first direction according to an ultrasonic signal sent by the ultrasonic wave generating module; or controlling the second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to the ultrasonic signals sent by the ultrasonic generating module; or alternatively controlling the first ultrasonic vibrator to generate the first ultrasonic wave and the second ultrasonic vibrator to generate the second ultrasonic wave according to the preset time.
In an embodiment of the present invention, the apparatus further includes:
and the refrigeration control unit is used for controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
Therefore, in the embodiment of the invention, the food material freezing control device in the refrigeration equipment can realize the enhanced heat transfer in the food material freezing process by adopting the low-frequency ultrasonic technology, so that the food material is accelerated to be frozen, the loss of nutrition of the food material in the food material freezing process can be reduced, and the freshness and the taste of the food material are ensured.
In an embodiment of the present invention, there is provided an apparatus for controlling freezing of food material in a refrigeration device, the refrigeration device including: ultrasonic wave generation module, ultrasonic vibrator to and the bottom has installed the quick-freeze dish of ultrasonic vibrator, the device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray;
and controlling the ultrasonic wave generation module and the ultrasonic wave oscillator to generate ultrasonic waves, carrying out ultrasonic wave freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic wave freezing treatment is matched with the action time of the ultrasonic waves.
In one embodiment of the present invention, a computer-readable storage medium is provided, having stored thereon computer instructions, which when executed by a processor, implement the steps of the above-described method.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A method of food material freezing control in a refrigeration appliance, the refrigeration appliance comprising: the method comprises the following steps of:
determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray;
and alternately controlling a first ultrasonic vibrator to generate first ultrasonic waves in a first direction and a second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to preset time, carrying out ultrasonic freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic freezing treatment is matched with the action time of the ultrasonic waves.
2. The method of claim 1, wherein said determining the ultrasonic exposure time corresponding to the physical information of the food material in the flash pan comprises:
acquiring physical information of food materials in the quick-freezing tray, wherein the physical information comprises: one or more of weight information, thickness information, and area information;
and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
3. The method of claim 1, wherein after stopping the generation of the ultrasonic waves, further comprising:
and controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with a set freezing temperature.
4. An apparatus for controlling freezing of food material in a refrigeration appliance, the refrigeration appliance comprising: ultrasonic wave generation module, ultrasonic vibrator to and the bottom has installed the quick-freeze dish of ultrasonic vibrator, the device includes:
the determining unit is used for determining the action time of the ultrasonic waves corresponding to the physical information of the food materials in the quick-freezing tray;
the food freezing control device comprises a first freezing control unit and a second freezing control unit, wherein the first freezing control unit is used for alternately controlling a first ultrasonic vibrator to generate first ultrasonic waves in a first direction and a second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to preset time, carrying out ultrasonic freezing treatment on food materials, and stopping generating the ultrasonic waves when the time of the ultrasonic freezing treatment is matched with the action time of the ultrasonic waves.
5. The apparatus of claim 4,
the determining unit is specifically configured to obtain physical information of food materials in the quick-freezing tray, where the physical information includes: one or more of weight information, thickness information, and area information; and determining the ultrasonic wave action time corresponding to the acquired physical information according to the corresponding relation between the stored physical information and the ultrasonic wave action time.
6. The apparatus of claim 4, wherein the apparatus further comprises:
and the refrigeration control unit is used for controlling the refrigeration equipment to carry out refrigeration treatment until the temperature of the food material is matched with the set freezing temperature.
7. An apparatus for controlling freezing of food material in a refrigeration appliance, the refrigeration appliance comprising: ultrasonic wave generation module, ultrasonic vibrator to and the bottom has installed the quick-freeze dish of ultrasonic vibrator, the device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining the ultrasonic action time corresponding to the physical information of the food materials in the quick-freezing tray;
and alternately controlling a first ultrasonic vibrator to generate first ultrasonic waves in a first direction and a second ultrasonic vibrator to generate second ultrasonic waves in a second direction according to preset time, carrying out ultrasonic freezing treatment on the food material, and stopping generating the ultrasonic waves when the time of the ultrasonic freezing treatment is matched with the action time of the ultrasonic waves.
8. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, perform the steps of the method of claims 1-3.
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