64 results about "Frozen temperature" patented technology

The invention discloses a pepper freezing temperature gradient dynamic adjusting method and system, particularly relates to the technical field of industrial freezing temperature control, and is used for solving the problem of temperature gradient misalignment caused by the fact that a static model does not sense dynamic changes of material thermodynamic parameters in real time in an existing freezing control method. Temperature distribution and gas flow rate data in the freezing process are collected in real time, a high-confidence-coefficient data subset of a low-flow-rate area is screened based on spatial correlation, the dynamic heat conduction coefficient of the material is identified online through a recursive algorithm, and the dynamic heat conduction coefficient of the material is identified through a double-threshold-value judgment mechanism of the energy release rate and the phase lag angle. Performing segmentation fitting to generate a stable parameter sequence; further dynamically adjusting a preset temperature gradient model through a nonlinear correction strategy to generate a self-adaptive gradient control curve, and finally driving heat exchange rate adjustment to realize closed-loop tracking of the actual temperature gradient on a target curve; the freezing uniformity and energy efficiency of the high-moisture material are remarkably improved, and the control precision caused by thermal response mismatch is improved.

The invention discloses a novel preparation technology of low-temperature fresh-keeping cold-quenched tea, and relates to the field of cold-quenched tea preparation, and the novel preparation technology comprises the following steps: S1, fresh leaves are picked and then are directly subjected to low-temperature freezing treatment, the freezing temperature is-25 DEG C to-15 DEG C, and the freezing time is 20-40 minutes; s2, unfreezing and withering the frozen fresh leaves; s3, performing rocking treatment on the unfrozen and withered tea leaves; s4, rolling the rocked green leaves by adopting a gradient pressure method; s5, carrying out segmented fermentation treatment under temperature and humidity control conditions; s6, after fermentation is completed, performing low-temperature freezing on the tea leaves again; according to the novel preparation process of the low-temperature fresh-keeping cold-quenched tea, the ice crystal form is cooperatively regulated and controlled through staged freezing treatment, cell structure damage is reduced, dynamic rocking and gradient rolling processes are combined, the inclusion release path is accurately controlled, tea polyphenol, theaflavin and flower and fruit aroma components are effectively reserved, and the low-temperature fresh-keeping cold-quenched tea is prepared. And component loss caused by temperature fluctuation or single mechanical force in the traditional process is avoided.

The invention relates to the technical field of food component analysis and testing, in particular to a fruit pectin sampling and testing method which comprises the following steps: step 1, directionally freezing and crushing, and calculating a target freezing temperature according to a tissue freezing point temperature and cell structure characteristics of a to-be-tested fruit; step 2, gradient centrifugal separation: mixing the crushed particles with a low-temperature protection buffer solution, and maintaining the temperature to be lower than the critical gelation temperature; executing three-stage centrifugation; parameters of each stage are corrected in real time according to physical characteristics of a preorder isolate; 3, dynamic turbidity detection: mixing a pure pectin component with a reaction solution containing a chelating agent and positive ions; calculating the pectin content according to the geometrical characteristic parameters of the characteristic inflection points, and calibrating a calculation model through a standard atlas database. The method can effectively solve the problems of tissue damage and impurity interference in berry fruits and seed-containing fruits, ensures the accuracy and reliability of pectin detection, and has important technical advantages and application prospects.

The invention relates to a freeze concentration production method and device, and belongs to the technical field of freeze concentration. The method comprises the following steps: feeding a raw material (dilute solution) into a freezing and dissolving device A, setting a freezing temperature, freezing to achieve solid-liquid balance, and separating to obtain a high-concentration solution A; and heating and dissolving the separated ice body in the device to obtain solutions (A1, A2, ice with solute content of less than 1%) with different concentrations. The low-concentration solution (A2) is frozen and concentrated again according to the method, so that the concentration of the solution is improved. The high-concentration solution (A1) can be frozen and concentrated again by using the process method to improve the concentration of the solution, or solutions with different target concentrations can be obtained by mixing according to needs.

Provided are: a first storage compartment of a freezing temperature zone; a second storage compartment of a temperature zone higher than the freezing temperature zone; a cooler (72) that has a cooling capacity that differs depending on the position and cools the surrounding air; a cooler compartment (7) that houses the cooler; a supply fan (71) disposed in the cooler compartment; a partition wall (6) that separates at least one of the first storage compartment and the second storage compartment from the front and back of the cooler compartment (7); a first air passage that transports air from the cooler compartment (7) to the first storage compartment; a second air passage that transports air from the cooler compartment (7) to the second storage compartment; a third air passage that returns air from the first storage compartment to the cooler compartment; and a fourth air passage (61D) that returns air from the second storage compartment to the cooler compartment, the third air passage having an air passage formed in the partition wall (6) that extends in the up-and-down direction in at least a portion, and the cooling capacity of the cooler to a second region lower than a first region supplies air drawn from the first storage compartment.

The application relates to an immersion refrigeration temperature control system, and relates to the technical field of immersion refrigeration temperature control. The system realizes temperature control during the immersion refrigeration process, reduces the formation of large ice crystals in the refrigeration process, reduces the damage to the inside of food, reduces energy consumption and reduces costs. The system comprises a temperature acquisition module, a liquid pump driving module, an upper computer, a data transmission module, a control module and a refrigeration equipment control module; the upper computer and the control module realize data interaction through the data transmission module; the temperature acquisition module collects the temperature of a refrigeration object and an external environment, converts the collected temperature signals into electric signals and sends the electric signals to the control module; the control module controls the power of the liquid pump driving module according to the temperature signals of the refrigeration object and the influence value of the external environment on the refrigeration liquid through a cascade control strategy and a PID control algorithm; and the control module also controls the start and stop of the refrigeration equipment control module according to the real-time temperature of the refrigeration object. The application is suitable for the field of immersion refrigeration temperature control.

The invention provides a vacuum freezing method and system based on a surface phase change self-cooling effect. The method comprises the following steps: constructing an initial sacrificial ice layer on the surface of a material; the pressure of the space where the materials are located is controlled to range from 0.01 Pa to 300 Pa and meets Plt; psat (T ice surface (t)), sublimating the sacrificial ice layer so as to absorb heat and cool the material; the existence of a sacrificial ice layer is maintained by dynamically spraying a liquid-phase medium on the surface of the material; and continuously reducing the temperature of the material through continuous sublimation of the sacrificial ice layer, and stopping the freezing process until the center temperature of the material is less than or equal to the target freezing temperature. The phase change latent heat of sublimation of the sacrificial ice layer is utilized to reduce the core temperature of the material to a target value, the dependence on an external cold source is gotten rid of breakthrough, and material damage and energy consumption are remarkably reduced.

The utility model relates to the technical field of freezing processing, in particular to blade or steel strip continuous ultralow-temperature freezing equipment which comprises a freezing cavity, a cold source is arranged in the freezing cavity, an exhaust port and a liquid outlet are formed in the freezing cavity, a feeding hole and a discharging hole are formed in the feeding position and the discharging position of the freezing cavity, a cover plate is connected to the top end of the freezing cavity in a sealed mode, and a freezing track is arranged in the freezing cavity. A cold guide plate is arranged above the freezing track, the two ends of the freezing track are connected with a feeding hole and a discharging hole respectively, and a purging device is arranged on the feeding hole or the discharging hole and used for purging the surface of a product located at the feeding hole or the discharging hole; the freezing track can provide supporting and guiding for products, the products enter from the feeding hole in one side of the box body and reach the discharging hole through the freezing track, it can be guaranteed that the freezing temperature of the products is uniform in the section of the freezing track, and the blowing device is arranged so that frost generated when the products make contact with outside air after being frozen can be removed; and the feeding hole or the discharging hole cannot be frosted under long-time low-temperature work.

The invention discloses a chitosan aerogel preparation method based on directional freezing mold design and freezing temperature regulation, designs a directional freezing device and a directional freezing mold of aerogel, and prepares chitosan aerogel at different freezing temperatures (a refrigerator:-15 DEG C, a freeze dryer:-45 DEG C, dry ice / ethanol:-78 DEG C, and liquid nitrogen:-196 DEG C). The directional freezing device designed by the invention consists of a container for containing refrigerants (dry ice / ethanol and liquid nitrogen) with different temperatures, a heat-conducting brass plate, a directional freezing mold and a temperature display capable of monitoring the temperature in real time, wherein the directional freezing mold is made of polytetrafluoroethylene and brass. Proved by comparison and embodiments, by adopting the directional freezing device disclosed by the invention, the pre-freezing temperature is regulated and controlled, and the chitosan aerogel with lower density, low thermal conductivity, high porosity and excellent mechanical properties is prepared.

This method for producing a frozen dessert has a freezing step in which a raw material liquid containing live bifidobacteria is frozen to obtain a partially frozen product. In order to suppress death of bifidobacteria, the freezing temperature in the freezing step is set to be lower than or equal to the freezing point of the raw material liquid, and the absolute value of the difference between the freezing point of the raw material liquid and the freezing temperature is set to be less than or equal to 2.0°C.

The utility model relates to the technical field of instant freezers, and discloses an instant freezer intelligent alarm system which comprises an instant freezing module, an instant freezing channel is formed in the instant freezing module, and a conveying frame is fixedly connected to the interior of the instant freezing channel. According to the intelligent alarm system of the instant freezer, the tension sensor, the displacement sensor and the speed sensor are arranged on the instant freezer, the tension force, the operation position and the operation speed of the net belt can be monitored, continuous and normal operation of the instant freezer is guaranteed, the freezing temperature of the instant freezer can be monitored by arranging the temperature sensor on the instant freezer, and the alarm effect is improved. By arranging a flash alarm and a sound alarm, warning can be conducted when the instant freezer breaks down, workers can be reminded of handling in time, and the problems that in the operation process of the instant freezer, normal operation of the instant freezer is affected by the tensioning force, the speed and the position of a mesh belt, and the product quality is affected are solved. And the freezing temperature of the instant freezer can influence the freezing quality.

1. Name of the product of this design: Electronic device with a graphical user interface for controlling a freezer. 2. Purpose of the product of this design: an electronic device used in freezers and refrigerators. 3. The design highlights of this design product are: the human-computer interactive graphical user interface for operating the screen functions of electronic equipment. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. There are no design points, and the left, right, top and bottom views are omitted. 6. Designate Design 1 as the base design. 7. Purpose of the graphical user interface: Design 1 The main view of the homepage interface is for the user to execute the freezer (refrigerator) and need to adjust the freezer mode. The main view of the homepage interface will appear. The user can touch the switch button in the main view interface to unlock the interface. At the same time, the interface enters an operational state, and there is a 5G wireless cellular network signal display icon at the top of the interface; the upper part of the interface contains working indicators for defrosting, fan, temperature, and pressure, which automatically light up according to the function of the equipment and during use. The left part of the interface is equipped with touchable setting, increase, and decrease operation buttons; the middle part of the interface is the temperature display area, including the refrigeration temperature display and the freezing temperature display. The current temperature is displayed in real time during use. You can also increase and decrease functions on the left side of the interface as needed; the right part of the interface is the touch-screen sterilization, energy saving, and negative oxygen function buttons. After the button is touched and selected, it will be displayed as a green icon; the lower part of the interface It can display the accumulated energy consumption, energy-saving energy consumption and date; when the sterilization function is touched on the main view interface, the fan is running at the same time, the fan working indicator light is displayed on the top of the interface, and the accumulated energy-saving energy consumption is displayed below the interface as shown in the changing state diagram 1; in the sterilization function, after the freezer and refrigerator fans have been used for a period of time, the pressure display light on the top of the interface lights up as shown in the changing state diagram 2; at the same time, the energy-saving function is turned on, the pressure is restored, and the upper pressure display light disappears as shown in the changing state diagram 3; at the same time, the negative oxygen function is turned on as shown in the state diagram 4; after the sterilization, energy-saving and negative oxygen functions are all turned off, the refrigeration and freezing temperatures are increased, the defrost function is automatically turned on, the defrost display light on the top of the interface lights up, and the date is displayed below the interface as shown in the changing state diagram 5; then the equipment resumes normal operation, the temperature drops, the defrost function is automatically turned off, the defrost display light on the top of the interface disappears, and the fan and temperature icons light up as shown in the changing state diagram 6. The only difference between Design 2 and Design 1 is that the middle area of ​​the main view only displays the refrigeration function and its current real-time temperature compared to Design 1. Other operating functions, display areas and human-computer interaction operations are the same.

To provide a refrigerator that can keep the degree of freshness even after food in a freezing temperature zone is thawed.SOLUTION: A refrigerator comprises a low-temperature chamber capable of being set to a plurality of temperature zone modes. The low-temperature chamber can be set to a partial freezing mode for cooling to a partial freezing temperature, and a thawing mode for cooling to a thawing temperature. When a load frozen to a freezing temperature is housed in the low-temperature chamber, and it is set to the thawing mode, it is operated in the thawing mode for a predetermined time, and operated in the partial freezing mode after the predetermined time elapses.SELECTED DRAWING: Figure 3

This present disclosure describes an apparatus and a method for measuring degradation kinetics of a biomaterial in aqueous solution below the normal freezing temperature. Further includes new systems comprising high-pressure containers with nucleating-locks, a temperature-control holder for the high-pressure containers, a holder for the nucleating-locks and an insulated low-temperature gradient chamber. A method is described comprising several steps such as filling of the high-pressure container with the biomaterial solution to be slightly below freezing temperature, closing of the container with a nucleating-lock, which is below freezing temperature, allowing the container to reach the reaction temperature, removing the container at selected time and bringing it to above freezing temperature and opening the container to recover the biomaterial solution.

Embodiments of the present application relate to a temperature control method and device, electronic equipment and storage medium. The method comprises: obtaining a current time; determining whether the current time belongs to a preset time range, wherein the opening frequency of the soft freezing chamber is less than or equal to a preset number threshold in the preset time range; in the case where the current time belongs to the preset time range, controlling the indoor temperature of the soft freezing chamber to decrease to a target temperature range, wherein the highest temperature included in the target temperature range is lower than the lowest temperature of the soft freezing temperature range. Thus, the shelf life of the food stored in the soft freezing chamber can be improved.

The invention provides a functional cheese sauce. The functional cheese sauce may be combined with various stuffing ingredients to form a self-supporting stuffing composition, which may be pressed or shaped such that it is self-supporting at a refrigerated or frozen temperature. The stuffing composition maintains its shape and is suitable for use in automated high throughput processing of food products such as roll-like food or Mexican rolls. Upon heating the stuffing composition, the self-supporting properties of the functional cheese sauce may disappear, such that the stuffing composition breaks down into a food product having desired organoleptic properties. Compositions of the functional cheese sauce, stuffing compositions, rolled food products, and methods of making are described.

A load handling device is provided for use in a frozen temperature environment. The load handling device comprises a driving mechanism operatively arranged to move the load handling device, and an enclosure to house a rechargeable power source to power the driving mechanism. The enclosure comprises a structure arranged to substantially fully enclose the power source. The structure comprises aerogel insulation. The enclosure comprises one or more load-bearing support elements configured to support the weight of the rechargeable power source and the aerogel insulation is not load-bearing. An enclosure is provided for a load handling device as defined herein. A storage and retrieval system is provided, comprising a grid framework structure. The grid framework structure comprises a track system comprising a plurality of tracks arranged in a grid pattern, a supporting framework structure supporting the track system, and a plurality of stacks of storage containers arranged in a plurality of storage columns located below the track system. The storage and retrieval system comprises at least one load handling device as defined herein.

The invention relates to the technical field of intelligent household appliances, and discloses a method for controlling a refrigerator, which comprises the following steps: obtaining the working state of a refrigeration air door; wherein the working state comprises a fault state; under the condition that the working state of the refrigeration air door is the fault state, the refrigeration temperature of a refrigeration chamber is obtained, and starting and stopping of a compressor are controlled according to the refrigeration temperature; the start-stop period of a compressor is determined, and the freezing temperature of a freezing chamber in the start-stop period and the current duty ratio of a freezing fan are obtained; and the duty ratio of the freezing fan is controlled according to the freezing temperature in the starting and stopping period and the current duty ratio of the freezing fan. According to the method, under the condition that the refrigeration air door cannot be reset, the temperature requirement of the freezing chamber is guaranteed while excessive refrigeration of the refrigeration chamber is avoided, the refrigeration effect of the refrigerator is improved, and the user experience feeling is improved. The invention further discloses a device for controlling the refrigerator and the refrigerator.

The invention provides a control method and device of a refrigerating system, a refrigerator and a storage medium. In the refrigerating system, a compressor, a condenser and a liquid separator communicate in sequence; the refrigeration evaporator is communicated with the liquid separator through a first pipe interface, the freezing evaporator is communicated with the liquid separator through a second pipe interface, and the first pipe interface is lower than the second pipe interface, so that a height difference exists between the first pipe interface and the second pipe interface, and the height difference is configured to be adjustable; the control method comprises the steps that when a compressor is shut down and runs, the first real-time refrigeration temperature of a refrigeration chamber is obtained; when the first real-time refrigeration temperature reaches the starting point temperature, a compressor is controlled to be started; the freezing temperature of the freezing chamber and the second real-time refrigeration temperature of the refrigeration chamber are obtained; if the freezing temperature is larger than the first preset temperature, the height difference is adjusted to be reduced; if the freezing temperature is smaller than the second preset temperature, the height difference is adjusted to be increased; the first preset temperature is higher than the second preset temperature; and when the second real-time refrigeration temperature reaches the refrigeration shutdown point temperature, the compressor is controlled to be shut down.

The present invention discloses a method and system for dynamically adjusting the temperature gradient of pepper freezing, which specifically relates to the technical field of industrial freezing temperature control. The method is used to solve the problem of temperature gradient inaccuracy caused by the static model failing to perceive the dynamic changes of material thermodynamic parameters in real time in the existing freezing control method. The method collects temperature distribution and gas flow rate data in the freezing process in real time, screens a high-confidence data subset in the low-flow rate area based on spatial correlation, uses a recursive algorithm to identify the dynamic thermal conductivity coefficient of the material online, and combines a dual-threshold judgment mechanism of energy release rate and phase lag angle to generate a stable parameter sequence through segmented fitting. The method further dynamically adjusts the preset temperature gradient model through a nonlinear correction strategy to generate an adaptive gradient control curve, ultimately driving the heat exchange rate adjustment to achieve closed-loop tracking of the target curve by the actual temperature gradient. The method significantly improves the freezing uniformity and energy efficiency of high-moisture materials, and improves the control accuracy caused by thermal response mismatch.

The invention provides a refrigerator starting control method and device, a refrigerator, a storage medium and electronic device.The method comprises the steps that when a compressor of the refrigerator is in a shutdown state, the first real-time freezing temperature of a freezing chamber of the refrigerator is detected, and the first real-time refrigerating temperature of a refrigerating chamber of the refrigerator is detected, the refrigerator comprises the refrigerating chamber and the freezing chamber. Heat preservation parameters of the refrigerator are obtained, and the heat preservation parameters are used for representing the heat preservation capacity of the refrigerator; and the compressor is controlled to be started in advance according to the first real-time freezing temperature, the first real-time refrigeration temperature and the heat preservation parameters. By adopting the scheme of the embodiment, the technical problem of large chamber temperature fluctuation caused by poor heat preservation capacity of a refrigerator in the related technology is solved, cooling capacity lag and chamber temperature fluctuation caused by reduction of the heat preservation performance of the refrigerator are avoided, and the refrigeration effect and the user experience of the refrigerator are improved.

The invention relates to the technical field of food detection, in particular to a portable detection device for multi-temperature-state freshness of livestock and poultry meat. The display screen is arranged at the top of the main body; the storage bucket is fixedly connected with the lower end of the main body through a connecting plate; the temperature detection module comprises a refrigeration temperature sensor and a freezing temperature sensor which are arranged on the two sides of the storage barrel respectively; and the gas collection and analysis module comprises a gas collection probe, a control chip and a gas-sensitive sensor. The refrigeration temperature sensor and the freezing temperature sensor are adopted to detect and judge the temperature of frozen and refrigerated livestock and poultry meat, and compared with an infrared temperature sensor, the refrigeration temperature sensor and the freezing temperature sensor are low in cost, can adapt to the humid and temperature changing environment, can work at the specific temperature for a long time, and are high in durability and high in reliability. High measurement precision can be provided within a certain temperature measurement range, and installation and maintenance are easy.

The invention relates to the technical field of ice cream machines, in particular to a driving motor control method of an ice cream machine and the ice cream machine, and the driving motor comprises a stirring motor for driving a stirring cutter to rotate and a lifting motor for driving a cup assembly to slide towards the stirring cutter or driving the stirring cutter to slide towards the cup assembly; the current in the operation process of the stirring motor and the lifting motor is monitored in real time through the detection unit, so that the rotating speed change of the lifting motor and / or the stirring motor at different working positions is changed to automatically adjust a program, and the purpose of one-key operation intelligent stirring is achieved; according to the ice cream stirring device, only one working key can be adopted for soft and hard ice cream with different kinds of sugar, fat content or freezing temperature, one-key operation of all formulas is achieved, the stirring rotating speed is automatically adjusted actively according to the load current condition, and therefore the taste of the stirred ice cream is more ideal.

The invention discloses an air door fault repairing method and device, a server, a refrigerator and a storage medium, and relates to the technical field of smart home. The method comprises the steps that the cloud server receives running state data reported by the refrigerator; according to the set freezing temperature and the freezing chamber temperature received within the preset duration, the refrigeration state of the refrigerator within the preset duration is determined; if the refrigeration state of the refrigerator within the preset duration is the normal working state, and the temperature of the refrigerating chamber is within the abnormal temperature range, a fault repairing instruction is sent to the refrigerator, the fault repairing instruction at least comprises a deicing starting instruction, and the deicing starting instruction is used for starting the deicing function of the refrigerator on the air door. That is to say, the running state data of the refrigerator are monitored and analyzed in real time through the cloud server, and the frozen air door is deiced in time. Moreover, manual deicing operation is not needed, damage to the refrigerator due to improper manual deicing operation is avoided, and therefore the service life of the refrigerator is prolonged.

The application provides a refrigerator control method and a refrigerator. The refrigerator control method comprises the following steps: obtaining a refrigeration temperature detected by a refrigeration temperature sensor, a freezing temperature detected by a freezing temperature sensor and an evaporation temperature detected by an evaporation temperature sensor; comparing the refrigeration temperature, the freezing temperature and the evaporation temperature with preset conditions to generate a comparison result; the preset conditions comprise a refrigeration opening temperature, a freezing opening temperature, a refrigeration closing temperature, a freezing closing temperature, a first preset temperature and a second preset temperature; and controlling the refrigerator to operate in a preset mode according to the comparison result. By detecting the refrigeration temperature, the freezing temperature and the evaporation temperature in real time, independent refrigeration of the refrigeration chamber and the freezing chamber is realized, and the humidity of the refrigeration chamber is increased, so that the problem of low humidity of the refrigeration chamber of a single-system air-cooled refrigerator is solved.

The invention discloses a refrigerator and a control method thereof. Firstly, the freezing temperature of a freezing chamber of the refrigerator is obtained; and then, when the refrigeration air door is in the closed state and the freezing temperature reaches the preset freezing refrigeration starting temperature, a compressor and / or a draught fan of the refrigerator are / is controlled to run at the preset high speed. Therefore, according to the embodiment of the invention, when the refrigeration air door is closed and the freezing temperature reaches the preset freezing refrigeration starting temperature, the compressor and / or the fan are / is controlled to operate at a high speed, and more cooling capacity is quickly transferred to the freezing chamber, so that the refrigeration duration of the freezing chamber can be shortened, and the cooling capacity transferred to the bottom of the refrigeration chamber in the refrigeration process of the freezing chamber is reduced; therefore, the risk that the temperature at the bottom of the refrigerating chamber is too low is reduced.

The present invention belongs to the technical field of crusher assembly and application, and in particular relates to an intelligent cold installation system for crushers. The system comprises a freezing box and liquid nitrogen connected to the freezing box, and also comprises a controller. The freezing box is provided with a temperature sensor, and the temperature sensors are arranged at intervals along the long side of the freezing box. The freezing box is provided with a nitrogen chamber, and the nitrogen chamber is provided with an exhaust fan, and the exhaust fan is arranged at one end of the freezing box. The nitrogen chamber is also connected to an air pump, and the output end of the air pump is connected to a nitrogen nozzle. The present invention provides an intelligent cold installation system for crushers, which realizes one-button intelligent freezing by improving the structure of the existing freezing box and setting the freezing time and freezing temperature based on experience according to the type, size and material characteristics of the parts to be frozen. In addition, by improving the structure of the freezing box, it realizes multi-point injection, thereby effectively improving the freezing effect and ensuring the freezing quality.

The invention belongs to the technical field of food freezing and fresh-keeping, and particularly relates to a freezing and fresh-keeping method of figs, which comprises the following steps: selecting cleaned and air-dried figs; pre-cooling at 4-6 DEG C; transferring to a static magnetic field freezing chamber, and continuously spraying dry carbon dioxide gas for protection in the transferring process; in a freezing chamber, the figs are placed on a porous rotary carrying disc, synchronous treatment is conducted at the freezing temperature of-21 DEG C to-19 DEG C and the static magnetic field intensity of 9 mT to 11 mT, and meanwhile the porous rotary carrying disc is driven to rotate at the constant speed; surface temperature distribution is monitored in real time through an infrared temperature sensor array, the center temperature is dynamically calculated based on a pre-built temperature gradient model, and freezing is stopped when the center temperature reaches minus 19 DEG C to minus 17 DEG C; storing the frozen figs at the temperature of-21 DEG C to-19 DEG C; and finally, unfreezing at 3.5-4.5 DEG C until the central temperature is-0.5-1 DEG C. The method is mainly used for long-term preservation of figs, effectively reduces ice crystal damage, keeps the shape, texture and flavor of unfrozen fruits, and is suitable for cold-chain logistics, cross-regional transportation and deep processing.

Embodiments of the present application provide a refrigerator, a control method and device thereof, and a computer readable storage medium. The refrigerator is provided with a compressor, a freezing chamber, and a defrosting sensor located in the freezing chamber. The control method comprises: in response to the power-on of the refrigerator, determining whether the temperature measured by the defrosting sensor is less than a preset freezing temperature; in response to determining that the temperature measured by the defrosting sensor is less than the preset freezing temperature, controlling the compressor to start up after a delay; and in response to determining that the temperature measured by the defrosting sensor is greater than or equal to the preset freezing temperature, controlling the compressor to start up immediately.

1. Name of the product of this design: Graphical user interface for controlling refrigerator functions for electronic equipment. 2. Purpose of this design product: This design product is used in electronic equipment. 3. The design highlights of this design product are the graphical user interface in electronic devices. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. The electronic equipment is of conventional design and other views are omitted. 6. Designate Design 1 as the base design. 7. Purpose of the graphical user interface: This design product is used to display the functions of a refrigerator, and the functions of the refrigerator can be controlled through human-computer interaction. Interface interaction process: in the main view of Design 1, short press the "Original Thaw" button to jump to the interface change state diagram 1 of Design 1. The interface change state diagram 1 of Design 1 shows that the original thawing function has been turned on; in the interface change state diagram 1 of Design 1, when the countdown ends, jump to the interface change state diagram 2 of Design 1; in the main view of Design 2, long press the "Original Thaw" button to jump to the interface change state diagram of Design 2. The interface change state diagram of Design 2 shows the exit from the micro-freezing mode; in the main view of Design 3, short press the "Refrigerate" button to jump to the interface change state diagram of Design 3. The interface change state diagram of Design 3 is used to set the refrigeration temperature; in the main view of Design 4, long press the "Refrigerate" button to jump to the interface change state diagram of Design 4. The interface change state diagram of Design 4 shows the entry into the quick cooling mode; in the main view of Design 5, short press the "Freeze" button to jump to the interface change state diagram of Design 5. The interface change state diagram of Design 5 is used to set the freezing temperature; long press "Freeze" in the main view of Design 6 button to jump to the interface change status diagram of Design 6, which shows that the quick freezing mode has been entered; in the main view of Design 7, short press the "Fresh Air Deodorization" button to jump to the interface change status diagram of Design 7, which shows that the fresh air deodorization function has been turned on, and the inner and outer double rings on the right side of the interface show rotation changes; in the main view of Design 8, long press the "Fresh Air Deodorization" button to jump to the interface change status diagram of Design 8, which shows that the instant deodorization function has been turned on, and the inner and outer double rings on the right side of the interface show light and dark flashing changes; the main view of Design 9 is used to display the interface information when the device is just powered on; in the main view of Design 9, when the system is loaded, jump to Interface Change Status Diagram 1 of Design 9, which shows the standby state; in Interface Change Status Diagram 1 of Design 9, click the lock screen button at the lower middle of the interface to jump to Interface Change Status Diagram 2 of Design 9, which shows the lock screen state.