Keep-alive equipment, keep-alive equipment control method and device, refrigeration house and electrical equipment

Abstract

The invention relates to keep-alive equipment, a keep-alive equipment control method and device, a refrigeration house and electrical equipment. The keep-alive equipment comprises a control module, an ultrasonic humidification module, a refrigeration module, a water adsorption material layer, a heating module, a goods shelf, a placement frame, 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 for controlling the ultrasonic humidifying module to adjust the environment humidity according to the humidity control signal, so that the environment humidity belongs to a target humidity range; controlling the refrigeration module to adjust the environment temperature according to the temperature control signal so as to enable the environment temperature to be lower than a preset temperature; and controlling the heating module to heat the water adsorption material layer according to the adjusting times of the ultrasonic humidifying module so as to increase the material temperature. According to the keep-alive equipment, the water adsorption material layer is arranged at the bottom in the cavity of the keep-alive equipment, humidity adjustment is achieved in combination with the ultrasonic humidification module and the water adsorption material layer, and the utilization efficiency of water resources can be effectively improved.

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 in water, water flow can achieve gas exchange at the gills of crustaceans by active pumping or passive flow. When in air, there is no water to carry oxygen, but if the gills are kept moist, they can still absorb oxygen from the air through the mucus layer on the surface. Therefore, keeping the gills of crustaceans moist is a key factor in keeping them alive.

[0004] In the process of waterless preservation, if you want to keep crustaceans moist, you can use a large amount of humidification, for example, use a large amount of spraying to maintain the humidity in the cold storage at a certain humidity. However, the waterless preservation technology in the related art will cause serious water accumulation in the cold storage, and the utilization rate of water resources is not high. In addition, in the process of humidification spray control, if only a small amount of humidification is performed, the gills cannot be kept moist. If the humidification is directly applied to the aquatic products, it may cause stress death of the aquatic products. 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 increase 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 environmental humidity; the refrigeration module is used to lower the environmental temperature; the water adsorption material layer and the heating module are arranged at the bottom inside the cavity of the preservation device, and the shelf is arranged 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 less than the first temperature and release moisture when the material temperature is greater than the 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;

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

[0010] In one embodiment, the production material of the water adsorption material layer includes metal-organic framework materials.

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

[0012] The oxygen detection unit is used to detect the oxygen concentration inside the cavity of the preservation 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 the preset concentration.

[0014] In one embodiment, a plurality of placement racks are arranged inside 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 outlets arranged 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 pass through the water mist channel at a preset flow rate and spray water mist through the mist outlets;

[0016] The mist outlets are arranged on the water mist channel at a preset interval, and the spray area of the mist outlets covers the area where the shelf is located;

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

[0018] The control module controls the ultrasonic humidification device to release water mist when the environmental humidity is less than or equal to the first humidity threshold until the environmental humidity rises to the second humidity threshold; wherein, the first humidity threshold and the second humidity threshold are the 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 preservation device, and the cold air outlet is arranged inside the cavity of the preservation 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 inside of the cavity of the preservation device through the cold air outlet;

[0021] The control module controls the refrigeration device to lower the environmental temperature until the environmental temperature is less than the preset temperature when the environmental temperature is greater than the preset temperature and the difference between the environmental temperature and the preset temperature is greater than the preset temperature difference threshold; during the process of lowering the environmental temperature, the refrigeration device controls the difference between the environmental temperature and the shelf temperature to belong to the preset temperature difference range.

[0022] In one embodiment, the heating module is arranged 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 environmental temperature is less than the preset temperature so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the environmental temperature is greater than the preset temperature difference threshold; during 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 belong to the 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 preservation device, and the fresh air outlet is arranged inside the cavity of the preservation device; the ventilation device is connected to the control module;

[0025] The ventilation device controls the fresh air outlet to open and realizes the air exchange between the inside of the cavity of the preservation device and the outside of the cavity of the preservation device through the fresh air outlet.

[0026] In a second aspect, the present application further provides a method for controlling a life-preserving device, which is applied to the life-preserving device described in the first aspect. The method includes:

[0027] Controlling an ultrasonic humidification module to adjust the environmental humidity in the internal cavity of the life-preserving device according to a humidity control signal, so that the environmental humidity belongs to a target humidity range;

[0028] Controlling a refrigeration module to adjust the environmental temperature in the internal cavity of the life-preserving device according to a temperature control signal, so that the environmental temperature is less than a preset temperature;

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

[0030] In one embodiment, the controlling an ultrasonic humidification module to adjust the environmental humidity in the internal cavity of the life-preserving device according to a humidity control signal, so that the environmental humidity belongs to a target humidity range includes:

[0031] Obtaining humidity data detected by a humidity detection unit to obtain the environmental humidity;

[0032] When the environmental humidity is less than or equal to a first humidity threshold, controlling the ultrasonic humidification module to release water mist until the environmental 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, the controlling a refrigeration module to adjust the environmental temperature in the internal cavity of the life-preserving device according to a temperature control signal, so that the environmental temperature is less than a preset temperature includes:

[0034] Obtaining temperature data detected by a first temperature detection unit and a third temperature detection unit to obtain the environmental temperature and the shelf temperature inside the shelf;

[0035] When the environmental temperature is greater than the preset temperature and the difference between the environmental temperature and the preset temperature is greater than a preset temperature difference threshold, controlling the refrigeration module to lower the environmental temperature until the environmental temperature is less than the preset temperature; during the process of lowering the environmental temperature, the refrigeration module controls the difference between the environmental temperature and the shelf temperature to belong to a preset temperature difference range.

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

[0037] When the ultrasonic humidification module controls the environmental humidity to increase from any humidity value to the second humidity threshold, record the number of adjustments once, so that the number of adjustments of the ultrasonic humidification module is incremented 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] Obtain the temperature data detected by the first temperature detection unit, the second temperature detection unit, and the third temperature detection unit to obtain the environmental temperature, the material temperature, and the temperature inside the shelf.

[0040] When the environmental temperature is less than the preset temperature, control the heating module to heat the water adsorption material layer so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the environmental temperature is greater than the preset temperature difference threshold; during 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 be within the preset temperature difference range.

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

[0042] Obtain the oxygen concentration data detected by the oxygen detection unit to obtain the oxygen concentration inside the cavity of the preservation device.

[0043] When the oxygen concentration is less than the preset concentration, control the fresh air module 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 also provides a preservation device control device, which is applied to the preservation device described in the first aspect. The device includes:

[0045] A humidity adjustment module for controlling the ultrasonic humidification module to adjust the environmental humidity inside the cavity of the preservation device according to a humidity control signal, so that the environmental humidity belongs to a target humidity range;

[0046] A temperature adjustment module for controlling the refrigeration module to adjust the environmental temperature inside the cavity of the preservation device according to a temperature control signal, so that the environmental temperature is less than the preset temperature;

[0047] A heating control module for controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer when the number of adjustments 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, including the preservation device described in the first aspect.

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

[0050] In summary, the present application proposes a keep-alive device, a keep-alive device control method, a device, a cold storage, and an electrical device, 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 belongs to 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; control the heating module to heat the water adsorption material layer according to the adjustment times of the ultrasonic humidification module to increase the material temperature. By arranging a water adsorption material layer at the bottom inside the cavity of the keep-alive device and combining the ultrasonic humidification module and the water adsorption material layer to achieve humidity adjustment, the present application can effectively improve the utilization efficiency of water resources. Description of the Drawings

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

[0052] Figure 2 It is a structural schematic diagram of a keep-alive device in an embodiment;

[0053] Figure 3 It is a structural schematic diagram of a placement rack of a keep-alive device in an embodiment;

[0054] Figure 4 It is a flowchart of a keep-alive device control method in an embodiment;

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

[0056] Figure 6 It is an internal structure diagram of a computer device in an embodiment.

[0057] Summary of the 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; Placing 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 implementation manners

[0059] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be 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 the present application and are not used to limit the present application.

[0060] In the related art,

[0061] In one embodiment, as Figure 1 and Figure 2 shown, a preservation 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] Among them, the control module 110 is respectively connected to the ultrasonic humidification module 120, the refrigeration 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. The control module 110 in this embodiment, as the core control element of the preservation device, can select the corresponding controller or processor according to the needs of the actual application scenario. The specific type of the control module 110 is not limited in this embodiment.

[0063] In this embodiment, the preservation device further includes a cavity 100 and a movable cavity door. When the cavity door is closed, the cavity 100 of the preservation device is airtight to maintain the stability of the temperature and humidity inside 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 set as temperature sensors or temperature detection probes, or can be configured as a circuit structure capable of collecting temperature data according to the needs of actual applications. The following takes sensors as an example for illustration. 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 each be one or more. In this embodiment, the first temperature detection unit 170 can be arranged on the inner sidewall of the cavity 100 of the live-preserving device for detecting the ambient temperature inside the cavity 100 of the live-preserving device. The second temperature detection unit 180 can be directly arranged on the surface of the water adsorption material layer 140 or at a position close to the water adsorption material layer 140 for detecting the material temperature of the water adsorption material layer 140. The third temperature detection unit 190 can be directly arranged at the central position inside the shelf 160 or at other positions inside the shelf 160 for detecting the temperature of the shelf 160 inside the shelf 160. Directly arranging the third temperature detection unit 190 at the central position inside the shelf 160 can ensure that the collected temperature of the shelf 160 can directly reflect the temperature of the overall 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 capable of collecting humidity data according to the needs of actual applications. The following takes sensors as an example for illustration. It should be noted that the number of sensors of the humidity detection unit 200 can be one or more. In this embodiment, multiple humidity detection units 200 are usually arranged to detect the overall humidity inside the cavity 100 of the live-preserving device. As Figure 2 shown, the humidity detection units 200 are arranged on the sidewalls on both sides inside the cavity 100 for detecting the ambient humidity inside the cavity 100 of the live-preserving 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 refrigeration module 130 conveys 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 absorption material layer 140 and a heating module 150 are provided at the bottom inside the cavity 100 of the live preservation device. A shelf 160 is provided above the water absorption material layer 140, and the shelf 160 is used to place aquatic products. Among them, the water absorption material layer 140 is used to absorb moisture when the material temperature is less than the first temperature, and release moisture when the material temperature is greater than the second temperature. Based on the material characteristics of the water absorption material layer 140, the heating module 150 is used to heat the water absorption material layer 140 according to the control instruction sent by the control module 110 to increase the material temperature, so that the water absorption material layer 140 releases the absorbed moisture into the interior of the cavity 100 at an appropriate time to improve the environmental humidity inside 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 temperature and the second temperature can be determined according to the manufacturing material of the water absorption material layer 140. In this embodiment, the manufacturing material of the water absorption material layer 140 includes metal-organic framework (Metal-Organic Framework, abbreviated as MOFs) materials. MOFs are a type of new functional material that can absorb moisture at low temperatures and then desorb moisture at high temperatures.

[0070] In this embodiment, by providing a MOFs coating on the bottom surface inside the cavity 100 of the live preservation device, after ultrasonic atomization humidification, the MOFs coating continuously and slowly absorbs the atomized droplets in the air, so that there is no droplet aggregation on the ground and walls, reducing the risk of bacterial growth. And a heating layer is provided under the MOFs coating. After the MOFs coating absorbs a certain amount of moisture, the MOFs coating is heated to desorb the absorbed moisture. By controlling the heating temperature and time, the desorbed moisture is slightly higher than the ambient temperature and the temperature of the shelf 160. The moisture naturally evaporates upward and meets the cold surface of the aquatic product, and naturally condenses into a water film on the surface of the aquatic product. This water film helps the aquatic product maintain smooth breathing, thereby increasing the survival rate of the aquatic product.

[0071] The control module 110 is used to control the ultrasonic humidification module 120 to adjust the environmental humidity according to the humidity control signal so that the environmental humidity belongs to the target humidity range; control the refrigeration module 130 to adjust the environmental temperature according to the temperature control signal so that the environmental temperature is less than the preset temperature; when the adjustment times of the ultrasonic humidification module 120 are greater than or equal to the preset number threshold, control the heating module 150 to heat the water absorption material layer 140 to increase the material temperature.

[0072] In this embodiment, the humidity control signal is a control signal 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 the target humidity range. In this embodiment, the target humidity range can be set to 80% relative humidity (RH) - 99% RH. The setting of the target humidity range can be determined according to the specific type of aquatic product. The aquatic products in this embodiment can be various types of aquatic animals or aquatic plants.

[0073] The temperature control signal is a control signal generated by the control module 110 based on the temperature data collected by each temperature detection unit. The temperature control signal is used to control the refrigeration module 130 to adjust the ambient temperature so that the ambient temperature is lower than the preset temperature. Among them, the preset temperature can be determined according to the specific type of aquatic product in the actual application scenario. The preservation device in this embodiment is mainly used to achieve the preservation and refrigeration of aquatic products. Therefore, the preset temperature is usually set to a lower temperature. And in this embodiment, the ambient temperature is mainly controlled by the refrigeration of the refrigeration module 130.

[0074] In this embodiment, the adjustment times of the ultrasonic humidification module 120 are greater than or equal to the preset number threshold, indicating that the ultrasonic humidification module 120 has adjusted the ambient humidity multiple times at this time, that is, the ultrasonic humidification module 120 has sprayed water mist into the cavity 100 multiple times. The MOFs coating provided at the bottom of the cavity 100 has absorbed enough water. At this time, the control module 110 sends a control signal to the heating module 150 to control the heating module 150 to heat the water adsorption material layer 140 to increase the material temperature, so as to cause the MOFs coating to release the absorbed water, and the water vapor rises into the shelf 160 and forms a water film on the cold surface of the aquatic products placed in the shelf 160.

[0075] To sum up, this embodiment provides a preservation device that uses the ultrasonic humidification module 120 to increase the humidity inside the cavity 100 of the preservation device. And a MOFs coating is provided at the bottom of the cavity 100 to adsorb the water molecules output by the ultrasonic humidification module 120, prevent droplets from aggregating on the ground and walls, and reduce the risk of bacterial growth. A heating layer is provided below the MOFs coating. By precisely controlling the heating temperature and time, the MOFs material is promoted to desorb the adsorbed water. The desorbed water is slightly higher than the ambient temperature inside the cavity 100 and naturally evaporates upward, and condenses on the cold surface of the aquatic products to form a water film. The desorbed water condenses on the surface of the aquatic products to form a water film, keeping the surface of the aquatic products moist, maintaining their smooth breathing, and improving the survival rate and freshness. Combining the humidification, adsorption, and desorption processes, the dynamic balance of the ambient humidity inside the cavity 100 is realized, avoiding excessive fluctuations in the ambient humidity, maintaining a suitable storage environment, and greatly improving the aquatic product preservation rate and water resource utilization rate of the preservation device.

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

[0077] In this embodiment, the oxygen detection unit 220 is disposed on the side wall inside the cavity 100 of the live preservation device for detecting the oxygen concentration inside the cavity 100 of the live preservation device. The fresh air module 210 realizes the adjustment of the oxygen concentration inside the cavity 100 by controlling the interaction between the gas inside the cavity 100 and the external gas.

[0078] The control module 110 is configured 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 the preset concentration.

[0079] In this embodiment, the oxygen control signal is a control signal generated according to the oxygen content data of 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 the preset concentration. Among them, the preset concentration can be set to 21%. It should be noted that the preset concentration can be determined according to the specific type of aquatic products in the actual application scenario.

[0080] Based on the above steps, the fresh air can be adjusted flexibly according to the oxygen content in the live preservation device, ensuring the stability of the oxygen concentration in the live preservation device and further improving the survival rate of the aquatic products in the live preservation device.

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

[0082] In this embodiment, a plurality of placement racks 161 can be provided inside the shelf 160, so as to achieve layered placement of aquatic products inside the shelf 160, and the number of aquatic products that can be placed can be increased.

[0083] On each placement rack 161, a plurality of through holes 162 are provided to facilitate gas flow, which is more conducive to forming a water film on the gills of aquatic products, such as crustacean aquatic products, and is also more conducive to aquatic products receiving oxygen. In this embodiment, by providing the through holes 162 on the placement rack 161, the survival rate of aquatic products can be effectively improved. It should be noted that the through holes 162 are evenly arranged on the placement rack 161, and the specific arrangement method can refer to Figure 3 the arrangement method in, and the number of through holes 162 in different rows or different columns can be the same or different. More through holes 162 can be arranged on the placement rack 161 in a staggered manner.

[0084] In one embodiment, as Figure 2 shown, the ultrasonic humidification module 120 in this embodiment uses an ultrasonic atomizer. The ultrasonic humidification module 120 includes a water tank 122, an ultrasonic humidifying device 121, a water mist channel 123, and a plurality of mist outlets 124 provided on the water mist channel 123. The water tank 122 is connected to the water mist channel 123 through the ultrasonic humidifying device 121. The ultrasonic humidifying device 121 is connected to the control module 110. The ultrasonic humidifying device 121 controls the water in the water tank 122 to pass through the water mist channel 123 at a preset flow rate, and sprays water mist through the mist outlets 124.

[0085] In this embodiment, the mist outlets 124 are arranged on the water mist channel 123 at a preset interval, and the spraying area of the mist outlets 124 covers the area where the shelf 160 is located, so as to ensure that the water mist sprayed from the mist outlets 124 will evenly fall on the surface of the aquatic products placed in the shelf 160. Using an ultrasonic atomizer to evenly disperse water into fine atomized droplets can avoid the stress death of aquatic products caused by directly spraying atomized humidification on the aquatic products.

[0086] In this embodiment, the water tank 122 is arranged outside the cavity 100 of the live preservation device, and the ultrasonic humidifying device 121 and the water mist channel 123 are arranged inside the cavity 100 of the live preservation device. Arranging the water tank 122 outside the live preservation device can facilitate the user to replenish the water resource in the water tank 122 at any time. In the actual application process, a liquid level sensor can also be arranged in 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, so that the control module 110 alarms to prompt the user to replenish the water in the water tank 122 in time.

[0087] The control module 110 controls the ultrasonic humidifying device 121 to release water mist when the environmental humidity is less than or equal to the first humidity threshold until the environmental humidity rises to the second humidity threshold; wherein, the first humidity threshold and the second humidity threshold are the 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 humidifying device 121 includes: First, after the ultrasonic humidifying device 121 is started, the humidity in the cavity 100 rises to 99%RH and then stops. Second, then as the refrigeration device works, when the humidity in the cavity 100 drops to 80%RH, the ultrasonic humidifying device 121 starts again to make the humidity in the warehouse rise to 99%RH.

[0089] Based on the above steps, the ambient humidity in the cavity 100 fluctuates within the range of 80%RH to 99%RH, effectively reducing the loss of moisture on the surface of aquatic products and increasing their survival rate. In this embodiment, the control module 110 includes a memory, and the change in ambient humidity can be recorded by the memory. The control module 110 then records the adjustment times of the ultrasonic humidification device 121 according to the change 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 adjustment times are recorded once, so that the adjustment times of the ultrasonic humidification module 120 are incremented by one.

[0091] In one embodiment, as Figure 2 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 preservation device, and the cold air outlet 132 is arranged inside the cavity 100 of the preservation device. The refrigeration device 131 is connected to the control module 110. In this embodiment, the refrigeration device 131 can be a device composed of a compressor, an expansion valve, an evaporator, a condenser and accessories, and pipelines. The refrigeration device 131 generates cold air with a temperature lower than the preset temperature and outputs the cold air to the inside of the cavity 100 of the preservation 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 greater than the preset temperature and the difference between the ambient temperature and the preset temperature is greater than the preset temperature difference threshold; during 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 be within the preset temperature difference range.

[0093] In this embodiment, the temperature of the cold air output by the refrigeration device 131 changes with the change of the ambient temperature. When the ambient temperature, that is, the temperature data collected by the first detection unit, is lower than the preset temperature, the refrigeration device 131 starts to work to lower the ambient temperature, and during the process of lowering the ambient temperature, the absolute value of the difference between the ambient temperature and the temperature of the shelf 160 is kept less than 0.5°C, that is, the difference between the ambient temperature and the temperature of the shelf 160 is controlled to be within the preset temperature difference range. It should be noted that the preset temperature difference range can be configured according to the 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 during the cooling process is not too large, 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 adsorption material layer 140. The control module 110 is configured to control the heating module 150 to heat the water adsorption material layer 140 when the ambient temperature is less than a preset temperature, so that the water adsorption material layer 140 is greater than a second temperature until the temperature difference between the shelf 160 temperature and the ambient temperature is greater than a preset temperature difference threshold; during the process of heating the water adsorption material layer 140, the heating module 150 controls the temperature difference between the material temperature and the shelf 160 temperature to be within a preset temperature difference range.

[0096] In this embodiment, the heating module 150 starts to operate when the adjustment times of the ultrasonic humidification module 120 are greater than a preset number threshold and the ambient temperature is less than a preset temperature. The heating module 150 generates heat to desorb the water molecules adsorbed by the MOFs coating. During the heating process, temperature data is collected in real time by the second temperature detection unit 180 and the second temperature detection unit 180 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 be 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 generating heat, where T1 is the ambient temperature.

[0097] Based on the above steps, the heating module 150 also ensures that the ambient temperature rises slowly during the heating process, preventing the decline of the aquatic product survival rate due to excessive temperature fluctuations.

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

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

[0100] In this embodiment, the ventilation device 211 can adopt a fresh air system device commonly used in related technologies to realize the air exchange between the air inside the cavity 100 of the preservation device and the air outside the cavity 100 of the preservation device.

[0101] In the actual application process, taking the oxygen concentration threshold of 20.5% as an example, when the oxygen concentration sensor detects that the oxygen concentration in the cavity 100 is less than 20.5%, the ventilation device 211 is activated to exchange the air inside and outside the cavity 100, and stops when the oxygen concentration in the cavity 100 rises to 21%. The entry of hot air from the outside into the room will cause the temperature inside the storage to rise. After the ventilation ends, the ambient temperature T1 inside the cavity 100 is detected. When T1 - T0 > 1°C, the refrigeration device 131 is restarted, where T0 is the preset temperature.

[0102] Based on the above steps, this embodiment provides a preservation device that uses an ultrasonic atomizer to evenly disperse water into fine atomized droplets to increase the humidity inside the cavity 100. An MOFs coating is provided on the floor of the cavity 100 to adsorb the atomized droplets, prevent the droplets from aggregating on the ground and walls, and reduce the risk of bacterial growth. A heating layer is provided below the MOFs coating. By precisely controlling the heating temperature and time, the MOFs material is promoted to desorb the adsorbed moisture. The desorbed moisture is slightly higher than the temperature inside the cavity 100 and naturally evaporates upward, condensing on the surface of the aquatic product to form a water film. The desorbed moisture condenses on the surface of the aquatic product to form a 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, the dynamic balance of the humidity inside the cavity 100 is achieved, avoiding excessive humidity fluctuations and maintaining a suitable preservation environment.

[0103] In one embodiment, as Figure 4 shown, a control method for a preservation device is provided. Taking the preservation device applied to Figure 1 as an example, the method includes the following steps:

[0104] S401, controlling the ultrasonic humidification module according to the humidity control signal to adjust the ambient humidity inside the preservation device cavity so that the ambient humidity belongs to the target humidity range;

[0105] S402, controlling the refrigeration module according to the temperature control signal to adjust the ambient temperature inside the preservation device cavity so that the ambient temperature is less than the preset temperature;

[0106] S403, when the adjustment times of the ultrasonic humidification module are greater than or equal to the preset number 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 of the embodiments, controlling the ultrasonic humidification module according to the humidity control signal to adjust the ambient humidity inside the preservation device cavity so that the ambient humidity belongs to the target humidity range includes:

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

[0109] When the ambient humidity is less than or equal to the first humidity threshold, control the ultrasonic humidification module 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 the 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 refrigeration module to adjust the ambient temperature inside the preservation device according to the temperature control signal so that the ambient temperature is less than the preset temperature includes:

[0111] Obtain the 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, control the refrigeration module to lower the ambient temperature until the ambient temperature is less than the preset temperature; during the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to be within the preset temperature difference range.

[0113] In one embodiment, the preservation device control method further includes:

[0114] When the ultrasonic humidification module controls the ambient humidity to rise from any humidity value to the second humidity threshold, record the number of adjustments once so that the number of adjustments of the ultrasonic humidification module is incremented 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] Obtain the 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 less than the preset temperature, control the heating module to heat the water adsorption material layer so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the ambient temperature is greater than the preset temperature difference threshold; during 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 be within the preset temperature difference range.

[0118] In one embodiment, the preservation device control method further includes:

[0119] Obtain the oxygen concentration data detected by the oxygen detection unit to obtain the oxygen concentration inside the cavity of the preservation device.

[0120] When the oxygen concentration is less than the preset concentration, control the fresh air module to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

[0121] In summary, this embodiment provides a method for controlling a live preservation device. The ultrasonic atomizer is used to evenly disperse water into fine atomized droplets to increase the humidity in the cavity. An MOFs coating is provided on the cavity floor to adsorb the atomized droplets, prevent the droplets from aggregating on the ground and walls, and reduce the risk of bacterial growth. A heating layer is provided below the MOFs coating. By precisely controlling the heating temperature and time, the MOFs material is promoted to desorb the adsorbed moisture. The desorbed moisture is slightly higher than the temperature in the cavity and naturally evaporates upward. When it meets the cold aquatic product surface, it condenses to form a water film. The desorbed moisture condenses on the aquatic product surface to form a water film, keeping the aquatic product surface moist, maintaining its smooth respiration, and improving the survival rate and freshness. By combining the humidification, adsorption, and desorption processes, the dynamic balance of the humidity in the cavity is achieved, avoiding excessive humidity fluctuations and maintaining a suitable preservation environment.

[0122] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are displayed sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same moment, but can be executed at different moments. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps or stages in other steps.

[0123] Based on the same inventive concept, the embodiment of the present application also provides a live preservation device control device for implementing the above-mentioned live preservation device control method. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the following live preservation device control device can refer to the limitations on the live preservation device control method in the above text, and will not be repeated here.

[0124] In one embodiment, as Figure 5 shown, a live preservation device control device 500 is provided, including: a humidity adjustment module 510, a temperature adjustment module 520, and a heating control module 530, where:

[0125] The humidity adjustment module 510 is configured to control the ultrasonic humidification module according to the humidity control signal to adjust the environmental humidity inside the live preservation device so that the environmental humidity belongs to the target humidity range;

[0126] The temperature regulation module 520 is used to control the refrigeration module according to the temperature control signal to regulate the ambient temperature inside the preservation device, so that the ambient temperature is less than the 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 are greater than or equal to the preset number threshold.

[0128] In one embodiment, the humidity regulation module 510 is specifically configured to obtain the 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, control the ultrasonic humidification module 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 the 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 regulation module 520 is specifically configured to obtain the 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, control the refrigeration module to lower the ambient temperature until the ambient temperature is less than the preset temperature; during the process of lowering the ambient temperature, the refrigeration module controls the difference between the ambient temperature and the shelf temperature to be within the preset temperature difference range.

[0130] In one embodiment, the heating control module 530 is specifically configured to record one adjustment time when the ultrasonic humidification module controls the ambient humidity to rise from any humidity value to the second humidity threshold, so that the adjustment times of the ultrasonic humidification module are incremented by one.

[0131] In one embodiment, the heating control module 530 is specifically configured to obtain the 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 less than the preset temperature, control the heating module to heat the water adsorption material layer so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the ambient temperature is greater than the preset temperature difference threshold; during 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 be within the preset temperature difference range.

[0132] In one embodiment, the preservation device control device 500 further includes:

[0133] An oxygen control module is configured to obtain the oxygen concentration data detected by an oxygen detection unit to obtain the oxygen concentration inside the cavity of the preservation device; and when the oxygen concentration is less than a preset concentration, control the fresh air module to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

[0134] Each module in the above preservation device control device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above respective modules.

[0135] In one embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 6 shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, 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 an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used for exchanging information between the processor and external devices. The communication interface of the computer device is used for communicating with external terminals in a wired or wireless manner. The wireless manner can be implemented through WIFI, a mobile cellular network, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a preservation device control method. The display unit of the computer device is used to form a visually visible picture, which 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. The input device of the computer device can be a touch layer covering the display screen, or a button, a trackball, or a touchpad provided on the shell of the computer device, or an external keyboard, a touchpad, or a mouse, etc.

[0136] Those skilled in the art can understand that Figure 6 the structure shown in

[0137] 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 those shown in the figure, or combine certain components, or have different component arrangements.

[0138] In one embodiment, an electrical appliance is provided, including the keep-alive device in the foregoing device embodiment. The electrical appliance can be any refrigeration device, such as a refrigerator.

[0139] In one embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory, and when the processor executes the computer program, the steps in the foregoing method embodiment are implemented.

[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 foregoing method embodiment are implemented.

[0141] In one embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps in the foregoing method embodiment are implemented.

[0142] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing 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 embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. 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), magnetoresistive 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 be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0143] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered as the scope described in this specification.

[0144] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A live preservation device, characterized in that, Including: 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 environmental temperature inside the cavity of the preservation 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 environmental humidity inside the cavity of the preservation device; The ultrasonic humidification module is used to adjust the environmental humidity; the refrigeration module is used to lower the environmental temperature; the water adsorption material layer and the heating module are arranged at the bottom inside the cavity of the preservation device, and the shelf is arranged 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 less than the first temperature and release moisture when the material temperature is greater than the 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 environmental humidity according to the humidity control signal so that the environmental humidity belongs to the target humidity range; control the refrigeration module to adjust the environmental temperature according to the temperature control signal so that the environmental temperature is less than the preset temperature; when the adjustment times of the ultrasonic humidification module are greater than or equal to the preset number threshold, control the heating module to heat the water adsorption material layer to increase the material temperature.

2. The keep-alive device according to claim 1, wherein The production material of the water adsorption material layer includes metal organic framework material.

3. The keep-alive device according to claim 1, wherein The preservation device further includes: a fresh air module and an oxygen detection unit; the control module is respectively connected to the fresh air module and the oxygen detection unit; The oxygen detection unit is used to detect the oxygen concentration inside the cavity of the preservation 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 the preset concentration.

4. The keep-alive device according to claim 1, characterized in that, A plurality of placement racks are arranged inside 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 outlets arranged 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 pass through the water mist channel at a preset flow rate and spray water mist through the mist outlets; The mist outlets are arranged on the water mist channel at a preset interval, and the spray area of the mist outlets covers the area where the shelf is located; The water tank is arranged outside the cavity of the preservation device, and the ultrasonic humidification device and the water mist channel are arranged inside the cavity of the preservation device; The control module controls the ultrasonic humidification device 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 the 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 preservation device, and the cold air outlet is arranged inside the cavity of the preservation 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 inside of the cavity of the preservation device through the cold air outlet; The control module controls the refrigeration device to lower the ambient 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 the preset temperature difference threshold until the ambient temperature is less than the preset temperature; during the process of lowering the ambient temperature, the refrigeration device controls the difference between the ambient temperature and the shelf temperature to be within the 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 less than the preset temperature so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the ambient temperature is greater than the preset temperature difference threshold; during 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 be within the 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 preservation device, and the fresh air outlet is arranged inside the cavity of the preservation device; the ventilation device is connected to the control module; The ventilation device controls the fresh air outlet to open and realizes the air exchange between the air inside the cavity of the preservation device and the air outside the cavity of the preservation device through the fresh air outlet.

9. A method for controlling a device for maintaining viability, characterized in that, Applied to the preservation device according to any one of claims 1-8, the method includes: Controlling the ultrasonic humidification module to adjust the ambient humidity inside the cavity of the preservation device according to the humidity control signal so that the ambient humidity belongs to the target humidity range; Controlling the refrigeration module to adjust the ambient temperature inside the cavity of the preservation device according to the temperature control signal so that the ambient temperature is less than the preset temperature; When the adjustment times of the ultrasonic humidification module are 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.

10. The method according to claim 9, wherein The controlling the ultrasonic humidification module to adjust the ambient humidity inside the cavity of the preservation device according to the humidity control signal so that the ambient humidity belongs to the target humidity range includes: Obtaining the humidity data detected by the humidity detection unit to obtain the ambient humidity; When the environmental humidity is less than or equal to the first humidity threshold, control the ultrasonic humidification module to release water mist until the environmental humidity rises to the second humidity threshold; wherein, the first humidity threshold and the second humidity threshold are the 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 controlling the refrigeration module to adjust the environmental temperature inside the preservation device according to the temperature control signal so that the environmental temperature is less than the preset temperature includes: Obtain the temperature data detected by the first temperature detection unit and the third temperature detection unit to obtain the environmental temperature and the shelf temperature inside the shelf. When the environmental temperature is greater than the preset temperature and the difference between the environmental temperature and the preset temperature is greater than the preset temperature difference threshold, control the refrigeration module to lower the environmental temperature until the environmental temperature is less than the preset temperature; during the process of lowering the environmental temperature, the refrigeration module controls the difference between the environmental temperature and the shelf temperature to be within the preset temperature difference range.

12. The method according to claim 10, wherein The method further includes: When the ultrasonic humidification module controls the environmental humidity to rise from any humidity value to the second humidity threshold, record the number of adjustments once, so that the number of adjustments of the ultrasonic humidification module is incremented by one.

13. The method according to claim 12, wherein The controlling the heating module to heat the water adsorption material layer to increase the material temperature of the water adsorption material layer includes: Obtain the temperature data detected by the first temperature detection unit, the second temperature detection unit and the third temperature detection unit to obtain the environmental temperature, the material temperature and the shelf temperature inside the shelf. When the environmental temperature is less than the preset temperature, control the heating module to heat the water adsorption material layer so that the water adsorption material layer is greater than the second temperature until the difference between the shelf temperature and the environmental temperature is greater than the preset temperature difference threshold; during 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 be within the preset temperature difference range.

14. The method according to claim 9, characterized in that The method further includes: Obtain the oxygen concentration data detected by the oxygen detection unit to obtain the oxygen concentration inside the cavity of the preservation device. When the oxygen concentration is less than the preset concentration, control the fresh air module to adjust the oxygen concentration until the oxygen concentration is greater than or equal to the preset concentration.

15. A control device for a live preservation device, characterized in that, Applied to the preservation device according to any one of claims 1-8, the device includes: A humidity adjustment module, configured to control the ultrasonic humidification module to adjust the environmental humidity inside the cavity of the preservation device according to the humidity control signal, so that the environmental humidity belongs to the target humidity range. A temperature adjustment module, configured to control the refrigeration module to adjust the environmental temperature inside the cavity of the preservation device according to the temperature control signal, so that the environmental temperature is less than the preset temperature. A heating control module, configured 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 number of adjustments of the ultrasonic humidification module is greater than or equal to the preset number threshold.

16. A cold storage, characterized in that, Includes the preservation device according to any one of claims 1-8.

17. An electrical device, characterized in that, including the live preservation device according to any one of claims 1-8.

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