Keep-alive equipment, keep-alive equipment control method, device, cold storage and electrical equipment

Abstract

The present application relates to a life-saving device, a life-saving device control method, an apparatus, a cold storage, and electrical equipment, including: a control module, an ultrasonic humidification module, a refrigeration module, a water adsorption material layer, a heating module, a shelf, a placement rack, a first temperature detection unit, a second temperature detection unit, a third temperature detection unit, and a humidity detection unit; the control module is used to control the ultrasonic humidification module to adjust the ambient humidity according to a humidity control signal so that the ambient humidity falls within a target humidity range; control the refrigeration module to adjust the ambient temperature according to a temperature control signal so that the ambient temperature is less than a preset temperature; and control the heating module to heat the water adsorption material layer according to the number of adjustments made by the ultrasonic humidification module to increase the material temperature. The present application can effectively improve the utilization efficiency of water resources by providing a water adsorption material layer at the bottom of the cavity of the life-saving device and combining the ultrasonic humidification module and the water adsorption material layer to achieve humidity regulation.

Description

Technical Field

[0001] The present application relates to the technical field of aquatic product preservation, and in particular to a preservation device, a preservation device control method, a device, a cold storage and electrical equipment. Background Art

[0002] With the development of economy and society, people's demand for the preservation of aquatic products has shifted from frozen to fresh. How to keep aquatic animals fresh for a long time after leaving the water is a technical problem that needs to be solved urgently.

[0003] When submerged in water, water flow enables gas exchange across the gills of crustaceans, either through active pumping or passive flow. In air, there's no water to carry oxygen, but if the gills remain moist, they can still absorb oxygen from the air through the mucus layer on their surface. Therefore, keeping crustaceans' gills moist is crucial for their survival.

[0004] During the waterless preservation process, crustaceans can be kept moist through extensive humidification, such as by using a large amount of spray to maintain a certain humidity level within the cold storage. However, related waterless preservation techniques can lead to significant water accumulation in the cold storage and inefficiently utilize water resources. Furthermore, during the humidification spray control process, only a small amount of humidification is insufficient to maintain gill moisture. Direct humidification of the aquatic product can lead to stress-induced death. Summary of the Invention

[0005] Based on this, it is necessary to provide a kind of survival equipment, survival equipment control method, device, cold storage and electrical equipment that can improve the utilization rate of water resources and improve the protection rate of aquatic products in order to solve the above technical problems.

[0006] In a first aspect, the present application provides a keep-alive device, comprising: a control module, an ultrasonic humidification module, a refrigeration module, a water adsorption material layer, a heating module, a shelf, a first temperature detection unit, a second temperature detection unit, a third temperature detection unit, and a humidity detection unit; the control module is respectively connected to the ultrasonic humidification module, the refrigeration module, the heating module, the first temperature detection unit, the second temperature detection unit, the third temperature detection unit, and the humidity detection unit;

[0007] The first temperature detection unit is used to detect the ambient temperature inside the cavity of the keep-alive device, the second temperature detection unit is used to detect the material temperature of the water adsorption material layer, and the third temperature detection unit is used to detect the shelf temperature inside the shelf; the humidity detection unit is used to detect the ambient humidity inside the cavity of the keep-alive device;

[0008] The ultrasonic humidification module is used to adjust the ambient humidity; the refrigeration module is used to reduce the ambient temperature; the water adsorption material layer and the heating module are provided at the bottom of the cavity of the keep-alive device, and the shelf is provided above the water adsorption material layer, and the shelf is used to place aquatic products; the water adsorption material layer is used to absorb moisture when the material temperature is lower than a first temperature, and release moisture when the material temperature is higher than a second temperature; the heating module is used to heat the water adsorption material layer to increase the material temperature; the second temperature is higher than or equal to the first temperature;

[0009] The control module is used to control the ultrasonic humidification module to adjust the ambient humidity according to the humidity control signal so that the ambient humidity falls within the target humidity range; control the refrigeration module to adjust the ambient temperature according to the temperature control signal so that the ambient temperature is lower than the preset temperature; and control the heating module to heat the water adsorption material layer to increase the material temperature when the adjustment times of the ultrasonic humidification module are greater than or equal to the preset times threshold.

[0010] In one embodiment, the water adsorption material layer is made of a metal organic framework material.

[0011] In one embodiment, the keep-alive device further comprises: a fresh air module and an oxygen detection unit; the control module is connected to the fresh air module and the oxygen detection unit respectively;

[0012] The oxygen detection unit is used to detect the oxygen concentration inside the cavity of the life-keeping device; the fresh air module is used to adjust the oxygen concentration;

[0013] The control module is used to control the fresh air module to adjust the oxygen concentration according to the oxygen control signal so that the oxygen concentration is greater than or equal to a preset concentration.

[0014] In one embodiment, a plurality of placement racks are provided in the shelf, and the placement racks are used to place aquatic products; the placement racks include a plurality of through holes.

[0015] In one embodiment, the ultrasonic humidification module includes a water tank, an ultrasonic humidification device, a water mist channel, and a plurality of mist outlet holes provided on the water mist channel; the water tank is connected to the water mist channel through the ultrasonic humidification device; the ultrasonic humidification device is connected to the control module; the ultrasonic humidification device controls the water in the water tank to flow through the water mist channel at a preset flow rate and spray water mist through the mist outlet holes;

[0016] The mist outlet holes are arranged on the water mist channel at preset intervals, and the spray area of ​​the mist outlet holes covers the area where the shelf is located;

[0017] The water tank is arranged outside the cavity of the keep-alive device, and the ultrasonic humidification device and the water mist channel are arranged inside the cavity of the keep-alive device;

[0018] The control module controls the ultrasonic humidification device to release water mist when the ambient humidity is less than or equal to a first humidity threshold until the ambient humidity rises to a second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

[0019] In one embodiment, the refrigeration module includes a refrigeration device and a cold air outlet; the refrigeration device is arranged outside the cavity of the keep-alive device, and the cold air outlet is arranged inside the cavity of the keep-alive device; the refrigeration device is connected to the control module;

[0020] The refrigeration device generates cold air with a temperature lower than the preset temperature, and outputs the cold air to the interior of the cavity of the keep-alive device through the cold air outlet;

[0021] The control module controls the refrigeration device to lower the ambient temperature until the ambient temperature is lower than the preset temperature when the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than a preset temperature difference threshold; in the process of lowering the ambient temperature, the refrigeration device controls the difference between the ambient temperature and the shelf temperature to fall within a preset temperature difference range.

[0022] In one embodiment, the heating module is disposed below the water adsorption material layer;

[0023] The control module is used to control the heating module to heat the water adsorption material layer when the ambient temperature is lower than a preset temperature, so that the temperature of the water adsorption material layer is higher than the second temperature until the difference between the shelf temperature and the ambient temperature is higher than a preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within a preset temperature difference range.

[0024] In one embodiment, the fresh air module includes a ventilation device and a fresh air outlet; the ventilation device is arranged outside the cavity of the life-keeping device, and the fresh air outlet is arranged inside the cavity of the life-keeping device; the ventilation device is connected to the control module;

[0025] The ventilation device controls the opening of the fresh air outlet, and realizes the exchange of air inside the cavity of the life-keeping device and air outside the cavity of the life-keeping device through the fresh air outlet.

[0026] In a second aspect, the present application further provides a keep-alive device control method, which is applied to the keep-alive device described in the first aspect, and the method includes:

[0027] controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range;

[0028] Controlling the refrigeration module according to the temperature control signal to adjust the ambient temperature of the internal cavity of the keep-alive device so that the ambient temperature is less than a preset temperature;

[0029] When the adjustment times of the ultrasonic humidification module is greater than or equal to a preset times threshold, the heating module is controlled to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer.

[0030] In one embodiment, controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range includes:

[0031] Acquiring humidity data detected by a humidity detection unit to obtain the ambient humidity;

[0032] When the ambient humidity is less than or equal to a first humidity threshold, the ultrasonic humidification module is controlled to release water mist until the ambient humidity rises to a second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

[0033] In one embodiment, controlling the refrigeration module to adjust the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal so that the ambient temperature is less than a preset temperature includes:

[0034] Acquire temperature data detected by the first temperature detection unit and the third temperature detection unit to obtain the ambient temperature and the shelf temperature inside the shelf;

[0035] When the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than a preset temperature difference threshold, the refrigeration module is controlled to lower the ambient temperature until the ambient temperature is less than the preset temperature; in the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to fall within a preset temperature difference range.

[0036] In one embodiment, the method further comprises:

[0037] When the ultrasonic humidification module controls the ambient humidity to increase from any humidity value to the second humidity threshold, the number of adjustments is recorded once, so that the number of adjustments of the ultrasonic humidification module is increased by one.

[0038] In one embodiment, controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer includes:

[0039] Acquire temperature data detected by the first temperature detection unit, the second temperature detection unit, and the third temperature detection unit to obtain the ambient temperature, the material temperature, and the shelf temperature inside the shelf;

[0040] When the ambient temperature is lower than a preset temperature, the heating module is controlled to heat the water adsorption material layer so that the temperature of the water adsorption material layer is higher than a second temperature until the difference between the shelf temperature and the ambient temperature is higher than a preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within a preset temperature difference range.

[0041] In one embodiment, the method further comprises:

[0042] Obtaining oxygen concentration data detected by an oxygen detection unit to obtain the oxygen concentration inside the cavity of the keep-alive device;

[0043] When the oxygen concentration is less than a preset concentration, the fresh air module is controlled to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

[0044] In a third aspect, the present application further provides a keep-alive device control device, which is applied to the keep-alive device described in the first aspect, and the device includes:

[0045] a humidity adjustment module, configured to control the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range;

[0046] a temperature regulating module, configured to control the refrigeration module to regulate the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal, so that the ambient temperature is less than a preset temperature;

[0047] The heating control module is used to control the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer when the adjustment number of the ultrasonic humidification module is greater than or equal to a preset number threshold.

[0048] In a fourth aspect, the present application also provides a cold storage comprising the life-keeping device described in the first aspect.

[0049] In a fifth aspect, the present application also provides an electrical device, including the keep-alive device described in the first aspect.

[0050] In summary, the present application proposes a life-keeping device, a life-keeping device control method, an apparatus, a cold storage, and electrical equipment, comprising: a control module, an ultrasonic humidification module, a refrigeration module, a water adsorption material layer, a heating module, a shelf, a placement rack, a first temperature detection unit, a second temperature detection unit, a third temperature detection unit, and a humidity detection unit; the control module is used to control the ultrasonic humidification module to adjust the ambient humidity according to a humidity control signal so that the ambient humidity falls within a target humidity range; control the refrigeration module to adjust the ambient temperature according to a temperature control signal so that the ambient temperature is less than a preset temperature; and control the heating module to heat the water adsorption material layer according to the number of adjustments of the ultrasonic humidification module to increase the material temperature. The present application can effectively improve the efficiency of water resource utilization by providing a water adsorption material layer at the bottom of the cavity inside the life-keeping device and combining the ultrasonic humidification module and the water adsorption material layer to achieve humidity regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a structural block diagram of a keep-alive device in one embodiment;

[0052] Figure 2 A schematic diagram of the structure of a keep-alive device in one embodiment;

[0053] Figure 3 A schematic diagram of the structure of a storage rack of a keep-alive device in one embodiment;

[0054] Figure 4 1 is a flow chart of a keep-alive device control method according to an embodiment;

[0055] Figure 5 is a structural block diagram of a keep-alive device control apparatus in one embodiment;

[0056] Figure 6 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment.

[0057] Summary of reference numerals:

[0058] Cavity 100; control module 110; ultrasonic humidification module 120; ultrasonic humidification device 121; water tank 122; water mist channel 123; mist outlet 124; refrigeration module 130; refrigeration device 131; cold air outlet 132; water adsorption material layer 140; heating module 150; shelf 160; placement rack 161; through hole 162; first temperature detection unit 170; second temperature detection unit 180; third temperature detection unit 190; humidity detection unit 200; fresh air module 210; ventilation device 211; fresh air outlet 212; oxygen detection unit 220. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0060] In related art,

[0061] In one embodiment, Figure 1 and Figure 2 As shown, a keep-alive device is provided, including: a control module 110, an ultrasonic humidification module 120, a refrigeration module 130, a water adsorption material layer 140, a heating module 150, a shelf 160, a first temperature detection unit 170, a second temperature detection unit 180, a third temperature detection unit 190 and a humidity detection unit 200.

[0062] The control module 110 is connected to the ultrasonic humidification module 120, the cooling module 130, the heating module 150, the first temperature detection unit 170, the second temperature detection unit 180, the third temperature detection unit 190, and the humidity detection unit 200. In this embodiment, the control module 110 serves as the core control element of the keep-alive device. A corresponding controller or processor can be selected based on the actual application scenario. This embodiment does not limit the specific type of the control module 110.

[0063] In this embodiment, the keep-alive device further includes a cavity 100 and a movable cavity door. When the cavity door is closed, the cavity 100 of the keep-alive device is sealed to maintain the stability of the temperature and humidity in the cavity 100 .

[0064] In this embodiment, the first temperature detection unit 170, the second temperature detection unit 180, and the third temperature detection unit 190 can be configured as temperature sensors or temperature detection probes, or can be configured as a circuit structure capable of collecting temperature data based on actual application needs. The following description uses sensors as an example. It should be noted that the number of sensors corresponding to the first temperature detection unit 170, the second temperature detection unit 180, and the third temperature detection unit 190 can be one or more. In this embodiment, the first temperature detection unit 170 can be disposed on the inner sidewall of the cavity 100 of the keep-alive device to detect the ambient temperature within the cavity 100 of the keep-alive device. The second temperature detection unit 180 can be disposed directly on the surface of the water-adsorbent material layer 140 or near the water-adsorbent material layer 140 to detect the material temperature of the water-adsorbent material layer 140. The third temperature detection unit 190 can be disposed directly at the center of the shelf 160 or at another location within the shelf 160 to detect the shelf 160 temperature within the shelf 160. Directly disposing the third temperature detection unit 190 at the center of the shelf 160 can ensure that the collected temperature of the shelf 160 can directly reflect the temperature of the entire area inside the shelf 160 .

[0065] In this embodiment, the humidity detection unit 200 can be set as a humidity sensor, or can be configured as a circuit structure that can collect humidity data according to the needs of actual applications. The following description takes a sensor as an example. It should be noted that the number of sensors in the humidity detection unit 200 can be one or more. In this embodiment, multiple humidity detection units 200 are usually set to detect the overall humidity inside the keep-alive device cavity 100. Figure 2 As shown, the humidity detection unit 200 is disposed on the side walls on both sides of the cavity 100 for detecting the ambient humidity inside the cavity 100 of the keep-alive device.

[0066] In this embodiment, the ultrasonic humidification module 120 emits spray into the cavity 100 according to the control instruction sent by the control module 110 to adjust the ambient humidity.

[0067] In this embodiment, the cooling module 130 delivers cold air into the cavity 100 according to the control instruction sent by the control module 110 to reduce the ambient temperature.

[0068] In this embodiment, a water-absorbing material layer 140 and a heating module 150 are disposed at the bottom of the cavity 100 of the keep-alive device. A shelf 160 is located above the water-absorbing material layer 140 for storing aquatic products. The water-absorbing material layer 140 absorbs moisture when the material temperature is below a first temperature and releases moisture when the material temperature is above a second temperature. Based on the material properties of the water-absorbing material layer 140, the heating module 150, in response to control commands sent by the control module 110, heats the water-absorbing material layer 140, raising the material temperature. This allows the water-absorbing material layer 140 to release the absorbed moisture into the cavity 100 at the appropriate time, thereby improving the ambient humidity within the cavity 100.

[0069] It should be noted that the second temperature is greater than or equal to the first temperature. The actual values ​​of the first and second temperatures can be determined based on the materials used to make the water-absorbing material layer 140. In this embodiment, the water-absorbing material layer 140 is made of a metal-organic framework (MOF) material. MOFs are a new type of functional material that can absorb water at low temperatures and then desorb the water at high temperatures.

[0070] In this embodiment, a MOF coating is applied to the bottom surface of the cavity 100 of the survival device. After ultrasonic atomization and humidification, the MOF coating continuously and slowly absorbs atomized droplets in the air, preventing droplet accumulation on the floor and walls, thereby reducing the risk of bacterial growth. Furthermore, a heating layer is provided beneath the MOF coating. After the MOF coating absorbs a certain amount of water, it is heated to desorb the absorbed water. By controlling the heating temperature and time, the desorbed water is kept slightly above the ambient temperature and the shelf temperature (160°C). The water naturally evaporates upwards and, upon encountering the cool surface of the aquatic product, condenses on the surface to form a film of water. This film of water helps the aquatic product breathe smoothly, thereby increasing its survival rate.

[0071] The control module 110 is used to control the ultrasonic humidification module 120 to adjust the ambient humidity according to the humidity control signal so that the ambient humidity falls within the target humidity range; control the cooling module 130 to adjust the ambient temperature according to the temperature control signal so that the ambient temperature is lower than the preset temperature; when the number of adjustments of the ultrasonic humidification module 120 is greater than or equal to the preset number threshold, control the heating module 150 to heat the water adsorption material layer 140 to increase the material temperature.

[0072] In this embodiment, the humidity control signal is generated by the control module 110 based on the humidity data collected by the humidity detection unit 200. The humidity control signal is used to control the ultrasonic humidification module 120 to adjust the ambient humidity so that the ambient humidity falls within a target humidity range. In this embodiment, the target humidity range can be set to 80% relative humidity (RH) to 99% RH. The target humidity range can be determined based on the specific type of aquatic product. The aquatic product in this embodiment can be various types of aquatic animals or plants.

[0073] The temperature control signal is generated by the control module 110 based on the temperature data collected by each temperature detection unit. This temperature control signal is used to control the refrigeration module 130 to adjust the ambient temperature so that it is below a preset temperature. The preset temperature can be determined based on the specific type of aquatic product in the actual application scenario. The food preservation device in this embodiment is primarily used to preserve and refrigerate aquatic products. Therefore, the preset temperature is typically set to a relatively low level. Furthermore, this embodiment primarily controls the ambient temperature through cooling provided by the refrigeration module 130.

[0074] In this embodiment, if the number of adjustments made by the ultrasonic humidification module 120 is greater than or equal to the preset threshold, it indicates that the ultrasonic humidification module 120 has adjusted the ambient humidity multiple times, meaning that the ultrasonic humidification module 120 has repeatedly sprayed water mist into the interior of the cavity 100. The MOFs coating disposed at the bottom of the cavity 100 has absorbed sufficient water. At this point, the control module 110 sends a control signal to the heating module 150, causing it to heat the water-absorbing material layer 140 to raise the material temperature. This, in turn, causes the MOFs coating to release the absorbed water, causing the water vapor to rise into the shelf 160, where it forms a water film on the cool surface of the aquatic products placed therein.

[0075] In summary, this embodiment provides a survival device that uses an ultrasonic humidification module 120 to increase the humidity inside the survival device cavity 100. A MOFs coating is provided at the bottom of the cavity 100 to adsorb water molecules output by the ultrasonic humidification module 120, prevent droplets from gathering on the ground and walls, and reduce the risk of bacterial growth. A heating layer is provided under the MOFs coating, and by precisely controlling the heating temperature and time, the MOFs material is prompted to desorb the adsorbed moisture. The desorbed moisture is slightly higher than the ambient temperature inside the cavity 100, and naturally evaporates upward, condensing on the surface of the aquatic product that is cooled to form a water film. The desorbed moisture condenses on the surface of the aquatic product to form a layer of water film, keeping the surface of the aquatic product moist, maintaining its smooth breathing, and improving its survival rate and freshness. By combining the humidification, adsorption and desorption processes, a dynamic balance of the ambient humidity in the cavity 100 is achieved, avoiding excessive fluctuations in the ambient humidity, maintaining a suitable storage environment, and greatly improving the aquatic survival rate and water resource utilization rate of the survival device.

[0076] In one embodiment, Figure 2 As shown, the keep-alive device further includes: a fresh air module 210 and an oxygen detection unit 220 , wherein the control module 110 is connected to the fresh air module 210 and the oxygen detection unit 220 , respectively.

[0077] In this embodiment, the oxygen detection unit 220 is disposed on the sidewall of the cavity 100 of the life-saving device to detect the oxygen concentration within the cavity 100. The fresh air module 210 adjusts the oxygen concentration within the cavity 100 by controlling the interaction between the gas inside the cavity 100 and the external air.

[0078] The control module 110 is used to control the fresh air module 210 to adjust the oxygen concentration according to the oxygen control signal so that the oxygen concentration is greater than or equal to a preset concentration.

[0079] In this embodiment, the oxygen control signal is generated based on the oxygen content data in the air collected by the oxygen detection unit 220. The oxygen control signal is used to control the fresh air module 210 to adjust the oxygen concentration so that the oxygen concentration is greater than or equal to a preset concentration. The preset concentration can be set to 21%. It should be noted that the preset concentration can be determined based on the specific type of aquatic product in the actual application scenario.

[0080] Based on the above steps, fresh air can be flexibly adjusted according to the oxygen content in the survival equipment to ensure the stability of the oxygen concentration in the survival equipment and further improve the survival rate of aquatic products in the survival equipment.

[0081] In one embodiment, Figure 3 As shown, a plurality of placement racks 161 are provided in the shelf 160 . The placement racks 161 are used to place aquatic products. The placement racks 161 include a plurality of through holes 162 .

[0082] In this embodiment, a plurality of placement racks 161 may be provided in the shelf 160 , so that aquatic products can be placed in layers in the shelf 160 , thereby increasing the number of aquatic products that can be placed.

[0083] On each rack 161, a plurality of through holes 162 are provided to facilitate gas flow, thereby being more conducive to the formation of a water film on the gills of aquatic products, such as crustaceans, and also being more conducive to the aquatic products receiving oxygen. In this embodiment, by providing through holes 162 on the rack 161, the survival rate of aquatic products can be effectively improved. It should be noted that the through holes 162 are evenly provided on the rack 161. The specific arrangement method can be referred to Figure 3 In the middle setting mode, the number of through holes 162 in different rows or columns can be the same or different, and a greater number of through holes 162 can be set on the placement rack 161 by staggering the arrangement.

[0084] In one embodiment, Figure 2 As shown, the ultrasonic humidification module 120 in this embodiment utilizes an ultrasonic atomizer. The ultrasonic humidification module 120 includes a water tank 122, an ultrasonic humidification device 121, a water mist channel 123, and multiple mist outlet holes 124 disposed on the water mist channel 123. The water tank 122 is connected to the water mist channel 123 via the ultrasonic humidification device 121. The ultrasonic humidification device 121 is connected to the control module 110. The ultrasonic humidification device 121 controls the water in the water tank 122 to flow through the water mist channel 123 at a preset flow rate and spray the mist through the mist outlet holes 124.

[0085] In this embodiment, mist outlet holes 124 are arranged at predetermined intervals on the water mist channel 123, and the spray area of ​​mist outlet holes 124 covers the area where shelf 160 is located, ensuring that the mist sprayed from mist outlet holes 124 will evenly fall on the surface of the aquatic products placed on shelf 160. Using an ultrasonic atomizer to evenly disperse water into fine atomized droplets can avoid direct spraying of atomized humidification on aquatic products, which may cause stress and death of the aquatic products.

[0086] In this embodiment, the water tank 122 is located outside the cavity 100 of the life-keeping device, while the ultrasonic humidification device 121 and the water mist channel 123 are located inside the cavity 100 of the life-keeping device. Placing the water tank 122 outside the life-keeping device allows the user to easily replenish the water within the water tank 122. In actual use, a liquid level sensor can also be installed within the water tank 122. The liquid level sensor is connected to the control module 110. When the liquid level in the water tank 122 is insufficient, the liquid level sensor sends a signal to the control module 110, causing the control module 110 to sound an alarm, prompting the user to replenish the water in the water tank 122 promptly.

[0087] The control module 110 controls the ultrasonic humidification device 121 to release water mist when the ambient humidity is less than or equal to the first humidity threshold until the ambient humidity rises to the second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

[0088] In this embodiment, taking the first humidity threshold as 80% RH and the second humidity threshold as 99% RH as an example, the humidification control process of the ultrasonic humidifier 121 includes the following steps: First, the ultrasonic humidifier 121 is activated to raise the humidity in the chamber 100 to 99% RH and then stops. Second, as the refrigeration equipment operates, the humidity in the chamber 100 drops to 80% RH, and the ultrasonic humidifier 121 is activated again to raise the humidity in the refrigerator to 99% RH.

[0089] Based on the above steps, the ambient humidity within chamber 100 fluctuates within a range of 80% RH to 99% RH, effectively reducing surface moisture loss in aquatic products and increasing their survival rate. In this embodiment, control module 110 includes a memory, and changes in ambient humidity can be recorded in the memory. Control module 110 then records the number of adjustments made to ultrasonic humidification device 121 based on these changes in ambient humidity.

[0090] In this embodiment, when the ultrasonic humidification module 120 controls the ambient humidity to increase from any humidity value to the second humidity threshold, the number of adjustments is recorded once, so that the number of adjustments of the ultrasonic humidification module 120 is increased by one.

[0091] In one embodiment, Figure 2 As shown, the refrigeration module 130 includes a refrigeration device 131 and a cold air outlet 132. The refrigeration device 131 is arranged outside the cavity 100 of the life-keeping device, and the cold air outlet 132 is arranged inside the cavity 100 of the life-keeping device. The refrigeration device 131 is connected to the control module 110. In this embodiment, the refrigeration device 131 can be a device consisting of a compressor, an expansion valve, an evaporator, a condenser, accessories, and pipelines. The refrigeration device 131 generates cold air with a temperature lower than a preset temperature and outputs the cold air to the interior of the cavity 100 of the life-keeping device through the cold air outlet 132.

[0092] The control module 110 controls the refrigeration device 131 to lower the ambient temperature until the ambient temperature is lower than the preset temperature when the ambient temperature is higher than the preset temperature and the difference between the ambient temperature and the preset temperature is higher than the preset temperature difference threshold; in the process of lowering the ambient temperature, the refrigeration device 131 controls the difference between the ambient temperature and the temperature of the shelf 160 to fall within the preset temperature difference range.

[0093] In this embodiment, the temperature of the cold air output by refrigeration unit 131 varies with ambient temperature. When the ambient temperature (i.e., the temperature data collected by the first detection unit) is below a preset temperature, refrigeration unit 131 begins operating to lower the ambient temperature. During this process, the absolute difference between the ambient temperature and the temperature of shelf 160 is maintained at less than 0.5°C. In other words, the difference between the ambient temperature and the temperature of shelf 160 is controlled to fall within a preset temperature range. It should be noted that the preset temperature range can be configured based on actual application needs.

[0094] Based on the above steps, the refrigeration device 131 can effectively control the ambient temperature in the cavity 100 and ensure that the temperature change will not be too large during the cooling process, thereby preventing the survival rate of aquatic products from decreasing due to excessive temperature fluctuations.

[0095] In one embodiment, the heating module 150 is disposed below the water-absorbing material layer 140. The control module 110 is configured to control the heating module 150 to heat the water-absorbing material layer 140 when the ambient temperature is lower than a preset temperature, such that the temperature of the water-absorbing material layer 140 is higher than a second temperature, until the temperature difference between the shelf 160 and the ambient temperature exceeds a preset temperature difference threshold. During the heating process of the water-absorbing material layer 140, the heating module 150 controls the temperature difference between the material temperature and the shelf 160 temperature to fall within the preset temperature difference range.

[0096] In this embodiment, the heating module 150 will start working when the number of adjustments of the ultrasonic humidification module 120 is greater than a preset number threshold and the ambient temperature is less than a preset temperature. The heating module 150 will generate heat to desorb the water molecules adsorbed by the MOFs coating. During the heating process, the second temperature detection unit 180 and the second temperature detection unit 180 collect temperature data in real time to ensure that 0°C < T2-T3 ≤ 2°C, where T2 is the material temperature and T3 is the shelf 160 temperature. That is, the temperature difference between the material temperature and the shelf 160 temperature is controlled to fall within a preset temperature difference range, where the preset temperature difference range can be set according to the needs of the actual application scenario. The heating module 150 generates heat until T3-T1>1°C, and then stops heating, where T1 is the ambient temperature.

[0097] Based on the above steps, the heating module 150 will also ensure that the ambient temperature rises slowly during the heating process, thereby preventing the survival rate of aquatic products from decreasing due to excessive temperature fluctuations.

[0098] In one embodiment, Figure 2 As shown, the fresh air module 210 includes a ventilation device 211 and a fresh air outlet 212. The ventilation device 211 is arranged outside the cavity 100 of the life-keeping device, and the fresh air outlet 212 is arranged inside the cavity 100 of the life-keeping device. The ventilation device 211 is connected to the control module 110.

[0099] The ventilation device 211 controls the opening of the fresh air outlet 212 , and realizes the exchange of air inside the cavity 100 of the survival device and air outside the cavity 100 of the survival device through the fresh air outlet 212 .

[0100] In this embodiment, the ventilation device 211 may be a fresh air system device commonly used in related technologies to achieve air exchange between the air inside the cavity 100 of the survival device and the air outside the cavity 100 of the survival device.

[0101] In actual application, using an oxygen concentration threshold of 20.5% as an example, when the oxygen concentration sensor detects that the oxygen concentration in chamber 100 is less than 20.5%, ventilation device 211 activates to exchange air inside and outside chamber 100. Operation stops when the oxygen concentration in chamber 100 rises to 21%. The entry of hot air from outside causes the temperature inside the chamber to rise. After ventilation is complete, the ambient temperature T1 inside chamber 100 is detected. When T1-T0>1°C, refrigeration device 131 restarts, where T0 is the preset temperature.

[0102] Based on the above steps, this embodiment provides a survival device that uses an ultrasonic atomizer to evenly disperse water into fine atomized droplets to increase the humidity in the cavity 100. A MOFs coating is set on the floor of the cavity 100 to adsorb the atomized droplets, prevent the droplets from gathering on the ground and walls, and reduce the risk of bacterial growth. A heating layer is set under the MOFs coating, and the MOFs material is prompted to desorb the adsorbed water by precisely controlling the heating temperature and time. The desorbed water is slightly higher than the temperature in the cavity 100, and naturally evaporates upward, condensing on the surface of the aquatic product that is cooled to form a water film. The desorbed water condenses on the surface of the aquatic product to form a layer of water film, keeping the surface of the aquatic product moist, maintaining its smooth breathing, and improving the survival rate and freshness. Combining the humidification, adsorption and desorption processes, a dynamic balance of the humidity in the cavity 100 is achieved, excessive humidity fluctuations are avoided, and a suitable storage environment is maintained.

[0103] In one embodiment, Figure 4 As shown, a keep-alive device control method is provided, which is applied to Figure 1 The keep-alive device in the example is used to illustrate the process, which includes the following steps:

[0104] S401, controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range;

[0105] S402, controlling the cooling module to adjust the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal so that the ambient temperature is less than a preset temperature;

[0106] S403 , when the adjustment times of the ultrasonic humidification module is greater than or equal to the preset times threshold, controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer.

[0107] In one embodiment, controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range includes:

[0108] Acquire humidity data detected by the humidity detection unit to obtain ambient humidity;

[0109] When the ambient humidity is less than or equal to the first humidity threshold, the ultrasonic humidification module is controlled to release water mist until the ambient humidity rises to the second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

[0110] In one embodiment, controlling the cooling module to adjust the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal so that the ambient temperature is less than a preset temperature includes:

[0111] Acquire temperature data detected by the first temperature detection unit and the third temperature detection unit to obtain the ambient temperature and the shelf temperature inside the shelf;

[0112] When the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than the preset temperature difference threshold, the refrigeration module is controlled to lower the ambient temperature until the ambient temperature is lower than the preset temperature; in the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to fall within the preset temperature difference range.

[0113] In one embodiment, the keep-alive device control method further includes:

[0114] When the ultrasonic humidification module controls the ambient humidity to increase from any humidity value to the second humidity threshold, the number of adjustments is recorded once, so that the number of adjustments of the ultrasonic humidification module is increased by one.

[0115] In one embodiment, controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer includes:

[0116] Acquire temperature data detected by the first temperature detection unit, the second temperature detection unit, and the third temperature detection unit to obtain the ambient temperature, the material temperature, and the shelf temperature inside the shelf;

[0117] When the ambient temperature is lower than the preset temperature, the heating module is controlled to heat the water adsorption material layer so that the temperature of the water adsorption material layer is higher than the second temperature until the difference between the shelf temperature and the ambient temperature is higher than the preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within the preset temperature difference range.

[0118] In one embodiment, the keep-alive device control method further includes:

[0119] Obtaining oxygen concentration data detected by the oxygen detection unit to obtain the oxygen concentration inside the cavity of the keep-alive device;

[0120] When the oxygen concentration is lower than the preset concentration, the fresh air module is controlled to adjust the oxygen concentration until the oxygen concentration is higher than or equal to the preset concentration.

[0121] In summary, this embodiment provides a method for controlling a keep-alive device, which utilizes an ultrasonic atomizer to evenly disperse water into fine atomized droplets to increase the humidity in the cavity. A MOFs coating is provided on the floor of the cavity to adsorb the atomized droplets, prevent the droplets from gathering on the ground and walls, and reduce the risk of bacterial growth. A heating layer is provided under the MOFs coating, and the MOFs material is prompted to desorb the adsorbed water by precisely controlling the heating temperature and time. The desorbed water is slightly higher than the temperature in the cavity, and naturally evaporates upward, condensing on the surface of the aquatic product that is cooled to form a water film. The desorbed water condenses on the surface of the aquatic product to form a layer of water film, which keeps the surface of the aquatic product moist, maintains its smooth breathing, and improves the survival rate and freshness. By combining the humidification, adsorption and desorption processes, a dynamic balance of the humidity in the cavity is achieved, excessive humidity fluctuations are avoided, and a suitable storage environment is maintained.

[0122] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0123] Based on the same inventive concept, embodiments of the present application also provide a keep-alive device control apparatus for implementing the keep-alive device control method described above. The solution provided by this apparatus is similar to the solution described in the method described above. Therefore, the specific limitations of one or more keep-alive device control apparatus embodiments provided below can be found in the above-described limitations of the keep-alive device control method and are not further elaborated here.

[0124] In one embodiment, Figure 5 As shown, a keep-alive device control device 500 is provided, comprising: a humidity adjustment module 510, a temperature adjustment module 520 and a heating control module 530, wherein:

[0125] The humidity adjustment module 510 is used to control the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within the target humidity range;

[0126] The temperature adjustment module 520 is used to control the refrigeration module to adjust the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal so that the ambient temperature is lower than a preset temperature;

[0127] The heating control module 530 is used to control the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer when the adjustment times of the ultrasonic humidification module is greater than or equal to a preset times threshold.

[0128] In one embodiment, the humidity adjustment module 510 is specifically used to obtain humidity data detected by the humidity detection unit to obtain the ambient humidity; when the ambient humidity is less than or equal to the first humidity threshold, the ultrasonic humidification module is controlled to release water mist until the ambient humidity rises to the second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

[0129] In one embodiment, the temperature adjustment module 520 is specifically used to obtain temperature data detected by the first temperature detection unit and the third temperature detection unit to obtain the ambient temperature and the shelf temperature inside the shelf; when the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than the preset temperature difference threshold, the refrigeration module is controlled to lower the ambient temperature until the ambient temperature is less than the preset temperature; in the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to fall within the preset temperature difference range.

[0130] In one embodiment, the heating control module 530 is specifically configured to record an adjustment number when the ultrasonic humidification module controls the ambient humidity to increase from any humidity value to a second humidity threshold, so as to increase the adjustment number of the ultrasonic humidification module by one.

[0131] In one embodiment, the heating control module 530 is specifically used to obtain temperature data detected by the first temperature detection unit, the second temperature detection unit, and the third temperature detection unit to obtain the ambient temperature, the material temperature, and the shelf temperature inside the shelf; when the ambient temperature is lower than the preset temperature, the heating module is controlled to heat the water adsorption material layer so that the water adsorption material layer is higher than the second temperature until the difference between the shelf temperature and the ambient temperature is higher than the preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within the preset temperature difference range.

[0132] In one embodiment, the keep-alive device control apparatus 500 further includes:

[0133] The oxygen control module is used to obtain the oxygen concentration data detected by the oxygen detection unit and obtain the oxygen concentration inside the cavity of the life-keeping device; when the oxygen concentration is less than the preset concentration, the fresh air module is controlled to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

[0134] Each module in the aforementioned keep-alive device control apparatus may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor in a computer device in hardware form, or may be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0135] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via wired or wireless means, and the wireless means can be achieved via Wi-Fi, mobile cellular networks, NFC (near-field communication), or other technologies. When executed by the processor, the computer program implements a keep-alive device control method. The display unit of the computer device is used to produce a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0136] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0137] In one embodiment, a cold storage is provided, comprising the keep-alive device in the aforementioned device embodiment.

[0138] In one embodiment, an electrical device is provided, comprising the keep-alive device in the aforementioned device embodiment. The electrical device may be any refrigeration device, such as a refrigerator.

[0139] In one embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the aforementioned method embodiment when executing the computer program.

[0140] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the aforementioned method embodiment are implemented.

[0141] In one embodiment, a computer program product is provided, comprising a computer program, which implements the steps in the aforementioned method embodiment when executed by a processor.

[0142] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0143] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A keep-alive device, characterized in that: include: A control module, an ultrasonic humidification module, a refrigeration module, a water adsorption material layer, a heating module, a shelf, a first temperature detection unit, a second temperature detection unit, a third temperature detection unit, and a humidity detection unit; the control module is respectively connected to the ultrasonic humidification module, the refrigeration module, the heating module, the first temperature detection unit, the second temperature detection unit, the third temperature detection unit, and the humidity detection unit; The first temperature detection unit is used to detect the ambient temperature inside the cavity of the keep-alive device, the second temperature detection unit is used to detect the material temperature of the water adsorption material layer, and the third temperature detection unit is used to detect the shelf temperature inside the shelf; the humidity detection unit is used to detect the ambient humidity inside the cavity of the keep-alive device; The ultrasonic humidification module is used to adjust the ambient humidity; the refrigeration module is used to reduce the ambient temperature; the water adsorption material layer and the heating module are provided at the bottom of the cavity of the life-keeping device, and the shelf is provided above the water adsorption material layer, and the shelf is used to place aquatic products; the water adsorption material layer is used to absorb moisture when the material temperature is lower than a first temperature, and release moisture when the material temperature is higher than a second temperature; The heating module is used to heat the water adsorption material layer to increase the material temperature; the second temperature is greater than or equal to the first temperature; The control module is used to control the ultrasonic humidification module to adjust the ambient humidity according to the humidity control signal so that the ambient humidity falls within the target humidity range; control the refrigeration module to adjust the ambient temperature according to the temperature control signal so that the ambient temperature is lower than the preset temperature; and control the heating module to heat the water adsorption material layer to increase the material temperature when the adjustment times of the ultrasonic humidification module are greater than or equal to the preset times threshold.

2. The keep-alive device according to claim 1, characterized in that The water adsorption material layer is made of a metal organic framework material.

3. The keep-alive device according to claim 1, characterized in that The keep-alive device further includes: a fresh air module and an oxygen detection unit; the control module is connected to the fresh air module and the oxygen detection unit respectively; The oxygen detection unit is used to detect the oxygen concentration inside the cavity of the life-keeping device; the fresh air module is used to adjust the oxygen concentration; The control module is used to control the fresh air module to adjust the oxygen concentration according to the oxygen control signal so that the oxygen concentration is greater than or equal to a preset concentration.

4. The keep-alive device according to claim 1, characterized in that A plurality of placement racks are arranged in the shelf, and the placement racks are used to place aquatic products; the placement racks include a plurality of through holes.

5. The keep-alive device according to claim 1, characterized in that: The ultrasonic humidification module includes a water tank, an ultrasonic humidification device, a water mist channel, and a plurality of mist outlet holes provided on the water mist channel; the water tank is connected to the water mist channel through the ultrasonic humidification device; the ultrasonic humidification device is connected to the control module; the ultrasonic humidification device controls the water in the water tank to flow through the water mist channel at a preset flow rate and spray water mist through the mist outlet holes; The mist outlet holes are arranged on the water mist channel at preset intervals, and the spray area of ​​the mist outlet holes covers the area where the shelf is located; The water tank is arranged outside the cavity of the keep-alive device, and the ultrasonic humidification device and the water mist channel are arranged inside the cavity of the keep-alive device; The control module controls the ultrasonic humidification device to release water mist when the ambient humidity is less than or equal to a first humidity threshold until the ambient humidity rises to a second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

6. The keep-alive device according to claim 1, characterized in that: The refrigeration module includes a refrigeration device and a cold air outlet; the refrigeration device is arranged outside the cavity of the keep-alive device, and the cold air outlet is arranged inside the cavity of the keep-alive device; the refrigeration device is connected to the control module; The refrigeration device generates cold air with a temperature lower than the preset temperature, and outputs the cold air to the interior of the cavity of the keep-alive device through the cold air outlet; The control module controls the refrigeration device to lower the ambient temperature until the ambient temperature is lower than the preset temperature when the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than a preset temperature difference threshold; in the process of lowering the ambient temperature, the refrigeration device controls the difference between the ambient temperature and the shelf temperature to fall within a preset temperature difference range.

7. The keep-alive device according to claim 1, characterized in that: The heating module is arranged below the water adsorption material layer; The control module is used to control the heating module to heat the water adsorption material layer when the ambient temperature is lower than a preset temperature, so that the temperature of the water adsorption material layer is higher than the second temperature until the difference between the shelf temperature and the ambient temperature is higher than a preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within a preset temperature difference range.

8. The keep-alive device according to claim 3, characterized in that: The fresh air module includes a ventilation device and a fresh air outlet; the ventilation device is arranged outside the cavity of the life-keeping device, and the fresh air outlet is arranged inside the cavity of the life-keeping device; the ventilation device is connected to the control module; The ventilation device controls the opening of the fresh air outlet, and realizes the exchange of air inside the cavity of the life-keeping device and air outside the cavity of the life-keeping device through the fresh air outlet.

9. A keep-alive device control method, characterized in that: Applied to the keep-alive device according to any one of claims 1 to 8, the method comprising: controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range; Controlling the refrigeration module according to the temperature control signal to adjust the ambient temperature of the internal cavity of the keep-alive device so that the ambient temperature is less than a preset temperature; When the adjustment times of the ultrasonic humidification module is greater than or equal to a preset times threshold, the heating module is controlled to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer.

10. The method according to claim 9, characterized in that The step of controlling the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range includes: Acquiring humidity data detected by a humidity detection unit to obtain the ambient humidity; When the ambient humidity is less than or equal to a first humidity threshold, the ultrasonic humidification module is controlled to release water mist until the ambient humidity rises to a second humidity threshold; wherein the first humidity threshold and the second humidity threshold are boundary values ​​of the target humidity range, and the first humidity threshold is less than the second humidity threshold.

11. The method according to claim 9, characterized in that The step of controlling the refrigeration module to adjust the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal so that the ambient temperature is less than a preset temperature includes: Acquire temperature data detected by the first temperature detection unit and the third temperature detection unit to obtain the ambient temperature and the shelf temperature inside the shelf; When the ambient temperature is greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than a preset temperature difference threshold, the refrigeration module is controlled to lower the ambient temperature until the ambient temperature is less than the preset temperature; in the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to fall within a preset temperature difference range.

12. The method according to claim 10, characterized in that The method further comprises: When the ultrasonic humidification module controls the ambient humidity to increase from any humidity value to the second humidity threshold, the number of adjustments is recorded once, so that the number of adjustments of the ultrasonic humidification module is increased by one.

13. The method according to claim 12, characterized in that The controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer includes: Acquire temperature data detected by the first temperature detection unit, the second temperature detection unit, and the third temperature detection unit to obtain the ambient temperature, the material temperature, and the shelf temperature inside the shelf; When the ambient temperature is lower than a preset temperature, the heating module is controlled to heat the water adsorption material layer so that the temperature of the water adsorption material layer is higher than a second temperature until the difference between the shelf temperature and the ambient temperature is higher than a preset temperature difference threshold; in the process of heating the water adsorption material layer, the heating module controls the temperature difference between the material temperature and the shelf temperature to fall within a preset temperature difference range.

14. The method according to claim 9, characterized in that The method further comprises: Obtaining oxygen concentration data detected by an oxygen detection unit to obtain the oxygen concentration inside the cavity of the keep-alive device; When the oxygen concentration is less than a preset concentration, the fresh air module is controlled to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

15. A keep-alive device control device, characterized in that: The keep-alive device according to any one of claims 1 to 8, wherein the device comprises: a humidity adjustment module, configured to control the ultrasonic humidification module to adjust the ambient humidity of the internal cavity of the keep-alive device according to the humidity control signal so that the ambient humidity falls within a target humidity range; a temperature regulating module, configured to control the refrigeration module to regulate the ambient temperature of the internal cavity of the keep-alive device according to the temperature control signal, so that the ambient temperature is less than a preset temperature; The heating control module is used to control the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer when the adjustment number of the ultrasonic humidification module is greater than or equal to a preset number threshold.

16. A cold storage, characterized in that: The invention comprises the keep-alive device according to any one of claims 1 to 8.

17. An electrical device, characterized in that: The invention comprises the keep-alive device according to any one of claims 1 to 8.

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