Storage cabinet and control method thereof

Abstract

The invention discloses a storage cabinet and a control method of the storage cabinet. A controller obtains the space utilization rate of a storage chamber according to the weight of articles in each storage space; when the space utilization rate of the storage chamber is within a preset normal range, whether the storage chamber is filled with stored articles or not is judged; if yes, identifying a target storage space supplemented with the stored articles, controlling the opening and closing state of an electric air door according to the change condition of the temperature of the articles in the target storage space, and controlling a direct current motor to work; if not, all the electric air doors are controlled to be opened, and the direct current motor is controlled to work. By the adoption of the technical scheme, storage detection can be conducted on articles in the storage cabinet, accurate and rapid cooling is achieved according to the weight, temperature and storage position of the articles, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of energy saving, and in particular to a locker and a control method of the locker. Background Art

[0002] At present, most of the lockers on the market are single-door large compartments with large space. When a large number of items are stored at a time, the temperature in the locker cools down slowly. At the same time, no matter whether there are items stored in the locker or where the items are placed in the locker, as long as the locker is turned on, the temperature is controlled, which also leads to slow cooling. In addition, users do not understand the space utilization. Sometimes, when the items in a certain area are used up, the user fails to replenish them in time, but the locker still runs the temperature control, which greatly increases the user's energy consumption. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a locker and a control method for the locker, which can perform storage detection on items in the locker and achieve accurate and rapid cooling according to the weight, temperature and storage location of the items, thereby reducing energy consumption.

[0004] In order to achieve the above object, an embodiment of the present invention provides a locker, the locker comprising:

[0005] The cabinet body has a storage compartment inside, and the storage compartment is divided into at least one storage space by at least one shelf; the cabinet body is also provided with an air supply duct inside, and the air supply duct is connected to each storage space through an air outlet, and a DC fan for air supply and an electric damper for controlling the air outlet state of each air outlet are provided inside the air supply duct;

[0006] Pressure sensors are used to detect the weight of items in each storage space;

[0007] Infrared sensors are used to detect the temperature of items in each storage space;

[0008] Controller for:

[0009] Obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space;

[0010] When the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items;

[0011] If yes, then identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor;

[0012] If not, all electric dampers are controlled to open and the DC motor is controlled to work.

[0013] Furthermore, the controller obtains the space utilization rate of the storage compartment according to the weight of the items in each storage space, specifically including:

[0014] Get the weight of items in each storage space;

[0015] Calculate the space utilization rate of each storage space according to the weight of items in each storage space;

[0016] The space utilization rate of the storage compartment is obtained according to the sum of the space utilization rates of all storage spaces.

[0017] Furthermore, the controller calculates the space utilization rate of each storage space according to the weight of the items in each storage space, specifically including:

[0018] According to the formula Calculate the space utilization rate of each storage space; where p represents the space utilization rate of the storage space, L represents the pressure value corresponding to the weight of the items in the storage space detected by the pressure sensor, L0 represents the no-load pressure value of the pressure sensor, and Lm represents the full-load pressure value of the pressure sensor.

[0019] Furthermore, the locker also includes a human sensing module and a voice module;

[0020] The controller is also used for:

[0021] Comparing the space utilization rate of the storage compartment with a first set value and a second set value respectively;

[0022] When the space utilization rate of the storage room is between the first set value and the second set value, it is determined that the space utilization rate of the storage room is within a preset normal range;

[0023] When the space utilization rate of the storage room is less than the first set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is empty and to replenish the stored items in time;

[0024] When the space utilization rate of the storage room is greater than the second set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is full and to deal with the stored items in time.

[0025] Furthermore, the controller is also used for:

[0026] When the space utilization rate of the storage room is less than the first set value, determining whether the storage room is replenished with stored items within a first preset time period;

[0027] If not, the voice module is used to send an alarm to the user, and it is determined whether the storage room is replenished with stored items within the second preset time period;

[0028] If not, the locker is controlled to enter a sleep mode.

[0029] Furthermore, the locker also includes a human sensing module and a voice module;

[0030] The controller is also used for:

[0031] comparing the space utilization rate of each storage space with the third set value and the fourth set value respectively;

[0032] When the space utilization rate of any storage space is less than the third set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate less than the third set value is empty, and to replenish the stored items in time;

[0033] When the space utilization rate of any storage space is greater than the fourth set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate greater than the fourth set value is full, and the stored items are handled in time.

[0034] Furthermore, the locker also includes:

[0035] A display module, used for displaying the space utilization rate of each storage space and / or the space utilization rate of the storage compartment in real time, and receiving a user's storage mode selection operation and storage confirmation operation;

[0036] The controller is also used for:

[0037] After the display module receives the user's storage confirmation operation, the object storage location is confirmed according to the space utilization rate of each storage space, and the object storage location is recommended to the user by using the voice module.

[0038] Furthermore, the controller determines whether the storage room is replenished with stored items, specifically including:

[0039] Determining whether the storage room has been replenished with stored items based on the change in the weight of the items in each storage space;

[0040] When the weight of the items in at least one storage space increases, it is determined that the storage room has been replenished with stored items;

[0041] When the weight of the items in all the storage spaces has not increased, it is determined that no items have been replenished and stored in the storage room.

[0042] Furthermore, the controller controls the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controls the operation of the DC motor, specifically including:

[0043] Obtaining the temperature of items in the target storage space;

[0044] Calculating the temperature difference between the temperature of the items in the target storage space and the set temperature;

[0045] When the temperature difference is greater than the preset temperature difference threshold, the electric damper corresponding to the air outlet in the target storage space is controlled to open, all other electric dampers are controlled to close, and the DC motor is controlled to work until the temperature difference between the temperature of the items in the target storage space and the set temperature is no greater than the preset temperature difference threshold, and then it is re-determined whether the storage room is replenished with stored items.

[0046] In order to achieve the above object, an embodiment of the present invention further provides a locker control method, which is applicable to any of the lockers described above, and the method is executed by the controller, and the method includes:

[0047] Obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space;

[0048] When the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items;

[0049] If yes, then identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor;

[0050] If not, all electric dampers are controlled to open and the DC motor is controlled to work.

[0051] Compared with the prior art, the embodiments of the present invention provide a locker and a locker control method, wherein the locker includes a cabinet body, a storage compartment is provided inside the cabinet body, and the interior of the storage compartment is divided into at least one storage space by at least one shelf; an air supply duct is also provided inside the cabinet body, and the air supply duct is connected to each storage space through an air outlet, and a DC fan for air supply and an electric damper for controlling the air outlet state of each air outlet are provided inside the air supply duct; a pressure sensor is also provided for detecting the weight of items in each storage space; an infrared sensor is also provided for detecting the temperature of items in each storage space; a controller is also provided for: obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space; when the space utilization rate of the storage compartment is within a preset normal range, determining whether items are added to the storage compartment; if so, identifying the target storage space for the added items, controlling the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controlling the DC motor to work; if not, controlling all the electric dampers to be opened, and controlling the DC motor to work. The embodiment of the present invention can perform storage detection on items in a locker, and realize accurate and rapid cooling according to the weight, temperature and storage position of the items, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the appearance structure of a locker provided by one embodiment of the present invention;

[0053] Figure 2 It is a schematic diagram of the internal structure of a locker provided by one embodiment of the present invention;

[0054] Figure 3 It is a structural schematic diagram of an air supply duct of a locker provided by an embodiment of the present invention;

[0055] Figure 4 It is a structural schematic diagram of a control system of a locker provided by an embodiment of the present invention;

[0056] Figure 5 This is a working flow diagram of a controller of a locker provided by one embodiment of the present invention;

[0057] Figure 6 is a work flow chart of a controller of a locker provided by another embodiment of the present invention;

[0058] Figure 7 is a work flow chart of a controller of a locker provided by another embodiment of the present invention;

[0059] Figure 8 is a work flow chart of a controller of a locker provided by another embodiment of the present invention;

[0060] Fig. 9 is a work flow chart of a controller of a locker provided by another embodiment of the present invention;

[0061] Fig.10 is a work flow chart of a controller of a locker provided by another embodiment of the present invention;

[0062] Fig.11 It is a flow chart of a method for controlling a locker provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1 and Figure 2 As shown, Figure 1 is a schematic diagram of the appearance structure of a locker provided by an embodiment of the present invention. Figure 2 1 is a schematic diagram of the internal structure of a locker provided by an embodiment of the present invention, wherein the locker comprises a cabinet body 100, wherein a storage compartment 10 is provided inside the cabinet body 100, wherein the storage compartment 10 is used to store articles (e.g., food materials, drinks, etc.); the storage compartment 10 is divided into at least one storage space 30 by at least one shelf 20, wherein each storage space 30 is used to store articles, and articles can be placed on the shelf 20;

[0065] It should be noted that at least one storage compartment 10 may be provided inside the cabinet 100, and each storage compartment 10 is used to store items; it is understandable that the storage cabinet also includes a door body arranged on the cabinet 100, wherein the door body and the storage compartment 10 may be in a one-to-one correspondence, that is, one door body corresponds to one storage compartment 10, and each door body is used to open or close the corresponding storage compartment 10, or the door body and the storage compartment 10 may be in a one-to-many relationship, that is, one door body corresponds to all storage compartments 10, and one door body is used to open or close all storage compartments 10 at the same time.

[0066] It should be noted that Figure 1 and Figure 2The cabinet body 100 of the storage cabinet shown in the figure adopts a rectangular parallelepiped structure, and the cabinet body 100 is provided with only one storage compartment 10 and two shelves 20, which divide the storage compartment 10 into three storage spaces 30. It can be understood by those skilled in the art that the cabinet body 100 can also adopt other shapes, such as a cube, a cylinder, etc., and the storage compartments 10 and shelves inside the cabinet body 100 can also be other numbers. Figure 1 and Figure 2 The structure shown is merely an example of the locker according to the embodiment of the present invention, and does not constitute a specific limitation on the structure of the locker.

[0067] In the embodiment of the present invention, the cabinet 100 is further provided with an air supply duct, which is generally arranged on the rear wall of the storage compartment 10. Figure 2 and Figure 3 As shown, Figure 3 1 is a schematic diagram of the structure of an air supply duct of a locker provided in an embodiment of the present invention. The air supply duct is connected to each storage space 30 through an air outlet 40, that is, there is a one-to-one correspondence between the air outlet 40 and the storage space 30, and the air outlet 40 is generally arranged on the inner wall of the storage space 30 to which it corresponds; a DC fan 50 and an electric damper 60 are arranged inside the air supply duct, and the DC fan 50 is used to supply air to the corresponding storage space 30 through the air supply duct and each air outlet 40, for example, supplying cold air to a certain storage space 30 can reduce the temperature in the corresponding storage space 30; the electric damper 60 is used to control each As for the air outlet status of each air outlet 40, it can be understood that there is also a one-to-one correspondence between the electric damper 60 and the air outlet 40. One electric damper 60 controls the air outlet status of one air outlet 40. When the DC fan works normally, when an electric damper 60 is opened, the corresponding air outlet 40 can discharge air normally. When an electric damper 60 is closed, the corresponding air outlet 40 cannot discharge air normally. Furthermore, an electric damper 60 with adjustable opening size can be selected. By controlling the opening size of the electric damper 60, the air outlet size of the corresponding air outlet 40 can be adjusted, that is, the air volume entering the corresponding storage space 30 can be adjusted.

[0068] Exemplary, combined Figure 2 and Figure 3As shown, the three storage spaces 30 are defined as a first storage space, a second storage space and a third storage space in order from top to bottom. Accordingly, the air outlet 40 connected to the first storage space is defined as a first air outlet, the air outlet 40 connected to the second storage space is defined as a second air outlet, the air outlet 40 connected to the third storage space is defined as a third air outlet, the electric damper 60 for controlling the air outlet state of the first air outlet is defined as a first electric damper, the electric damper 60 for controlling the air outlet state of the second air outlet is defined as a second electric damper, and the electric damper 60 for controlling the air outlet state of the third air outlet is defined as a It means the third electric damper; when the DC fan is working normally, when the first electric damper, the second electric damper and the third electric damper are all opened, the first air outlet, the second air outlet and the third air outlet discharge air from three different positions, which can ensure the uniform temperature in the storage compartment 10; when the first electric damper is opened, and the second electric damper and the third electric damper are both closed (the same applies when only the second electric damper is opened or only the third electric damper is opened), only the first air outlet can discharge air normally, and at this time only the first storage space is cooled quickly, thereby achieving precise and rapid cooling.

[0069] In an embodiment of the present invention, the locker further includes a pressure sensor 70, which is used to detect the weight of items in each storage space 30. It can be understood that there is a one-to-one correspondence between the pressure sensor 70 and the storage space 30, and one pressure sensor 70 corresponds to detecting the weight of items in one storage space 30. The pressure sensor 70 can be set on the slide of the shelf 20. By sensing the weight of the items placed on the shelf 20, the weight of the items in the corresponding storage space 30 can be obtained, and it can be determined whether there are items on the corresponding shelf 20 based on the weight of the items placed on the shelf 20.

[0070] For example, Figure 2 As shown, pressure sensors 70 are provided in the first storage space, the second storage space and the third storage space. The three pressure sensors 70 are defined as the first pressure sensor, the second pressure sensor and the third pressure sensor in order from top to bottom, and the two shelves 20 are defined as the first shelf and the second shelf in order from top to bottom. Then, the first pressure sensor can be installed on the slide of the first shelf, and the second pressure sensor can be installed on the slide of the second shelf. Since the third storage space is at the bottom of the locker, the third pressure sensor can be directly installed at the bottom of the third storage space.

[0071] In an embodiment of the present invention, the locker also includes an infrared sensor 80, which is used to detect the temperature of items in each storage space 30. It can be understood that there is a one-to-one correspondence between the infrared sensor 80 and the storage space 30, and one infrared sensor 80 corresponds to detecting the temperature of items in one storage space 30, wherein the infrared sensor 80 can be set on the inner wall of the storage space 30, and the temperature of the items in the corresponding storage space 30 can be obtained through infrared detection, and it can be judged whether the items in the corresponding storage space 30 are newly placed items based on the detected temperature of the items in the storage space 30 (generally, the temperature of newly placed items is higher).

[0072] For example, Figure 2 As shown, infrared sensors 80 are provided in the first storage space, the second storage space and the third storage space. The three infrared sensors 80 are defined as the first infrared sensor, the second infrared sensor and the third infrared sensor in order from top to bottom. Then, the first infrared sensor can be installed on the inner wall of the first storage space, the second infrared sensor can be installed on the inner wall of the second storage space, and the third infrared sensor can be installed on the inner wall of the third storage space.

[0073] In an embodiment of the present invention, the locker further includes a controller, which is used to control the operation of various components in the locker so that the various components of the locker operate to realize various functions of the locker. Furthermore, the controller is also used to adopt the technical solution provided in the embodiment of the present invention to perform corresponding temperature control on the locker to solve the technical problem to be solved by the embodiment of the present invention and realize the technical effect to be achieved by the embodiment of the present invention.

[0074] Combination Figure 4 As shown, it is a structural schematic diagram of a control system of a locker provided by an embodiment of the present invention. The controller is respectively connected to the DC fan 50, each of the electric dampers 60, each of the pressure sensors 70, and each of the infrared sensors 80. In specific implementation, the controller can obtain the weight of the items in each storage space 30 through the pressure sensor 70, and obtain the temperature of the items in each storage space 30 through the infrared sensor 80, so as to realize storage detection of the items in the locker, and control the working state of the DC fan 50 and the switch state of all the electric dampers 60 according to the weight, temperature and storage position of the items, so as to realize accurate and rapid cooling of the items in the locker, reduce energy consumption, and achieve the purpose of energy saving and efficiency improvement.

[0075] Combination Figure 4In the embodiment of the present invention, the locker further comprises an ambient temperature sensor connected to the controller, and the ambient temperature sensor is used to detect the temperature in the storage compartment 10 in real time. The controller compares the detected temperature in the storage compartment 10 with the set temperature of the compartment, and can control the opening of the electric damper 60 according to the comparison result, thereby adjusting the air outlet size of the corresponding air outlet 40, that is, adjusting the air volume entering the corresponding storage space 30, to achieve energy saving effect.

[0076] As one of the optional embodiments, the controller is used for:

[0077] Obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space;

[0078] When the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items;

[0079] If yes, then identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor;

[0080] If not, all electric dampers are controlled to open and the DC motor is controlled to work.

[0081] Combination Figure 5 FIG. 1 is a flowchart of a controller of a locker provided by an embodiment of the present invention. When the embodiment of the present invention is implemented, the specific working process of the controller is as follows: the weight of the items in each storage space is detected in real time by a pressure sensor, and the space utilization rate of the storage room is obtained according to the weight of the items in each storage space obtained by the detection ( Figure 5 Step S11); determine whether the space utilization rate of the storage room is within a preset normal range ( Figure 5 In step S12), when it is determined that the space utilization rate of the storage room is within the preset normal range, it is further determined whether the storage room is replenished with stored items ( Figure 5 When it is determined that the storage room is supplemented with stored items, the target storage space for the supplemented stored items is first identified from all storage spaces ( Figure 5 The temperature of the object in the target storage space is detected in real time by the infrared sensor, and compared with the temperature of the object in the target storage space detected previously, so as to control the switch state of each electric damper and control the operation of the DC motor according to the change of the temperature of the object in the target storage space (step S14). Figure 5Step S15 is shown, so that the air outlet corresponding to the opened electric damper can discharge air normally, and only the items in the target storage space are quickly cooled; when it is determined that there are no additional items stored in the storage room, the normal temperature control mode is entered, all the electric dampers are directly controlled to be opened, and the DC motor is controlled to work ( Figure 5 Step S16) is shown, so that all air outlets discharge air from different positions to ensure that the temperature in the storage room is uniform.

[0082] It should be noted that when the controller identifies the target storage space to be replenished with stored items from all storage spaces, since one pressure sensor detects the weight of items in one storage space, it can determine which storage space or spaces are replenished with stored items based on changes in the detection value of the pressure sensor.

[0083] A storage cabinet provided by an embodiment of the present invention comprises a cabinet body, a storage compartment is arranged inside the cabinet body, and the interior of the storage compartment is divided into at least one storage space by at least one shelf; an air supply duct is also arranged inside the cabinet body, the air supply duct is connected to each storage space through an air outlet, a DC fan for air supply and an electric damper for controlling the air outlet state of each air outlet respectively are arranged inside the air supply duct; a pressure sensor is also included for detecting the weight of items in each storage space; an infrared sensor is also included for detecting the temperature of items in each storage space; a controller is also included for: obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space; when the space utilization rate of the storage compartment is within a preset normal range, determining whether items are added to the storage compartment; if so, identifying the target storage space for the added items, controlling the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controlling the DC motor to work; if not, controlling all the electric dampers to be opened, and controlling the DC motor to work. The embodiment of the present invention can actively perform storage detection on the items in the locker through the pressure sensor to determine the number of items stored in the locker, thereby determining the space utilization rate of the storage room, and when the space utilization rate of the storage room is within a preset normal range, if there are new items stored in the storage room, the switch states of different electric dampers are controlled according to the weight, temperature and storage position of the items in the target storage space of the added items to achieve accurate and rapid cooling and reduce energy consumption. If there are no new items stored in the storage room, all the electric dampers are controlled to be fully opened to ensure that the temperature in the storage room is uniform, thereby achieving the purpose of energy saving and efficiency improvement.

[0084] See also Figure 6FIG. 1 is a flowchart of a controller of a locker provided by another embodiment of the present invention. As one of the optional embodiments, the controller obtains the space utilization rate of the storage compartment according to the weight of the items in each storage space, specifically including steps S111 to S113:

[0085] Step S111, obtaining the weight of items in each storage space;

[0086] Step S112, calculating the space utilization rate of each storage space according to the weight of the items in each storage space;

[0087] Step S113: Obtain the space utilization rate of the storage compartment according to the sum of the space utilization rates of all storage spaces.

[0088] On the basis of the above embodiment, when the embodiment of the present invention is implemented, the controller executes Figure 5 In step S11 shown, the weight of items in each storage space can be first detected by a pressure sensor, and then the space utilization rate of each storage space can be calculated according to the weight of items in each storage space. It can be understood that the sum of the space utilization rates of all storage spaces calculated according to the space utilization rate of each storage space is the space utilization rate of the storage room.

[0089] As one of the optional embodiments, the controller calculates the space utilization rate of each storage space according to the weight of the items in each storage space, specifically including:

[0090] According to the formula Calculate the space utilization rate of each storage space; where p represents the space utilization rate of the storage space, L represents the pressure value corresponding to the weight of the items in the storage space detected by the pressure sensor, L0 represents the no-load pressure value of the pressure sensor, and Lm represents the full-load pressure value of the pressure sensor.

[0091] Specifically, in combination with the above embodiment, after the controller obtains the weight of the items in each storage space through the pressure sensor, it can directly calculate the weight of the items in each storage space according to the formula Calculate the space utilization rate of each storage space.

[0092] It can be understood that since the detection value of the pressure sensor is a pressure value, the pressure value can reflect the weight of the items in the storage space. Therefore, the no-load pressure value of the pressure sensor can be tested in advance when there are no items stored in the storage space (i.e., the storage space is empty), and recorded as L0. When the storage space is full of items (i.e., the storage space is fully loaded), the full-load pressure value of the pressure sensor can be tested and recorded as Lm. Then, when the controller actually obtains the space utilization rate of the storage space, it can detect the pressure value corresponding to the weight of the items currently stored in the storage space through the pressure sensor, and record it as L. Combined with the formula By performing calculations, the space utilization rate p of the storage space can be obtained, wherein the space utilization rate is obtained in the same way for each storage space.

[0093] It should be noted that, although the pressure value can reflect the number of items stored in the storage space, the pressure value is not intuitive for the user, while the space utilization rate is more intuitive and easy to understand. Therefore, the embodiment of the present invention calculates the space utilization rate through the pressure value, and in particular, the space utilization rate is displayed through the display module in the following embodiment, which can facilitate the user to more intuitively understand the space utilization situation in each storage space and / or the space utilization situation in the storage room, and the human-computer interaction is stronger.

[0094] As one of the optional embodiments, the locker further includes a human sensing module and a voice module;

[0095] The controller is also used for:

[0096] Comparing the space utilization rate of the storage compartment with a first set value and a second set value respectively;

[0097] When the space utilization rate of the storage room is between the first set value and the second set value, it is determined that the space utilization rate of the storage room is within a preset normal range;

[0098] When the space utilization rate of the storage room is less than the first set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is empty and to replenish the stored items in time;

[0099] When the space utilization rate of the storage room is greater than the second set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is full and to deal with the stored items in time.

[0100] Combination Figure 4As shown, the locker also includes a human sensing module and a voice module connected to the controller, the human sensing module is used to sense whether there is a user within a preset range around the locker, and the voice module is used to send prompt information to the user through voice, the human sensing module and the voice module can generally be installed on the door body of the locker, and can also be installed in other suitable locations, which is not specifically limited in the embodiment of the present invention.

[0101] Combination Figure 7 FIG. 1 is a flowchart of a controller of a locker provided by another embodiment of the present invention. Based on the above embodiment, when the embodiment of the present invention is implemented, the controller executes Figure 5 In step S12 shown in FIG. 1 , the calculated space utilization rate of the storage compartment can be compared with the first set value and the second set value respectively ( Figure 7 Step S121 is shown to determine whether the space utilization rate of the storage compartment is between the first set value and the second set value ( Figure 7 If it is determined that the space utilization rate of the storage room is between the first set value and the second set value, it is determined that the space utilization rate of the storage room is within the preset normal range, and step S13 can be continued; if it is determined that the space utilization rate of the storage room is not between the first set value and the second set value, it is further determined whether the space utilization rate of the storage room is less than the first set value ( Figure 7 In step S123, when it is determined that the space utilization rate of the storage room is less than the first set value, it means that the space utilization rate of the storage room is insufficient and the stored items need to be replenished in time. Therefore, the human sensing module can be used to determine whether there is a user within the preset range of the locker ( Figure 7 If there is a user within the preset range of the locker, the voice module is used to remind the user that the storage room is empty and to replenish the stored items in time ( Figure 7 If it is determined that the space utilization rate of the storage room is not less than the first set value, it is further determined whether the space utilization rate of the storage room is greater than the second set value ( Figure 7 When it is determined that the space utilization rate of the storage room is greater than the second set value, it means that the space utilization rate of the storage room is sufficient and the stored items need to be processed in time. Therefore, the human sensing module can be used to determine whether there is a user within the preset range of the locker ( Figure 7 If there is a user within the preset range of the locker, the voice module is used to remind the user that the storage room is full and to deal with the stored items in time ( Figure 7 Step S128 is shown).

[0102] It should be noted that the order of step S122, step S123 and step S126 is not limited to Figure 7 The sequence shown can also be flexibly adjusted according to actual needs, and is not specifically limited in the embodiment of the present invention.

[0103] It should be noted that the embodiment of the present invention provides voice prompts to the user through the voice module, which can help the user understand the current storage status of items in the locker and replenish the stored items in time or deal with the stored items in time.

[0104] As one of the optional embodiments, the controller is further used for:

[0105] When the space utilization rate of the storage room is less than the first set value, determining whether the storage room is replenished with stored items within a first preset time period;

[0106] If not, the voice module is used to send an alarm to the user, and it is determined whether the storage room is replenished with stored items within the second preset time period;

[0107] If not, the locker is controlled to enter a sleep mode.

[0108] Combination Figure 8 FIG. 1 is a flowchart of a controller of a locker provided by another embodiment of the present invention. Based on the above embodiment, when the embodiment of the present invention is implemented, the controller executes Figure 7 After step S123 shown in the figure, when it is determined that the space utilization rate of the storage room is less than the first set value, it means that the space utilization rate of the storage room is insufficient and the stored items need to be replenished in time. Then, it is further determined whether the stored items in the storage room are replenished within the first preset time period ( Figure 8 Step S1231 is shown, that is, determining whether the user has added items to the storage room within the first preset time period; if the user has added items to the storage room within the first preset time period, then step S14 can be continued; if the user has not added items to the storage room within the first preset time period, then an alarm prompt is issued to the user using the voice module ( Figure 8 Step S1232 is shown), and after the alarm prompt is issued, it is further determined whether the storage room is replenished with stored items within the second preset time period ( Figure 8 If the user adds items to the storage room within the second preset time period, step S14 may be continued; if the user still does not add items to the storage room within the second preset time period, the room temperature control mode is turned off and the locker is controlled to enter the sleep mode ( Figure 8 Step S1234 is shown).

[0109] It should be noted that, in the embodiment of the present invention, if no stored items are added for a certain period of time, the compartment temperature control mode can be automatically turned off, so that the locker enters the whole machine sleep mode, thereby achieving energy saving effect.

[0110] As one of the optional embodiments, the locker further includes a human sensing module and a voice module;

[0111] The controller is also used for:

[0112] comparing the space utilization rate of each storage space with the third set value and the fourth set value respectively;

[0113] When the space utilization rate of any storage space is less than the third set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate less than the third set value is empty, and to replenish the stored items in time;

[0114] When the space utilization rate of any storage space is greater than the fourth set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate greater than the fourth set value is full, and the stored items are handled in time.

[0115] Specifically, in combination with the above embodiment, since when judging the space utilization rate of the entire storage room, only a rough understanding of the space utilization situation of the entire storage room can be obtained, therefore, in order to more accurately understand the space utilization situation in each storage space, the embodiment of the present invention can judge the space utilization rate of each storage space. In specific implementation, the controller can compare the calculated space utilization rate of each storage space with the third set value and the fourth set value respectively. If it is determined that the space utilization rate of any storage space is less than the third set value, it means that the space utilization rate of the storage space is insufficient and needs to be improved in time. Therefore, the human sensing module can be used to determine whether there is a user within the preset range of the locker. If there is a user within the preset range of the locker, the voice module can be used to remind the user that the storage space is empty and the stored items can be replenished in time. If the space utilization rate of any storage space is determined to be greater than the fourth set value, it means that the space utilization rate of the storage space is sufficient, and the stored items need to be processed in time. Therefore, the human sensing module can be used to determine whether there is a user within the preset range of the locker. If there is a user within the preset range of the locker, the voice module can be used to remind the user that the storage space is full, and the stored items need to be processed in time.

[0116] As one of the optional embodiments, the locker further includes:

[0117] A display module, used for displaying the space utilization rate of each storage space and / or the space utilization rate of the storage compartment in real time, and receiving a user's storage mode selection operation and storage confirmation operation;

[0118] The controller is also used for:

[0119] After the display module receives the user's storage confirmation operation, the object storage location is confirmed according to the space utilization rate of each storage space, and the object storage location is recommended to the user by using the voice module.

[0120] Combination Figure 4 As shown, the locker also includes a display module connected to the controller, and the display module is used to display the space utilization rate of each storage space and / or the space utilization rate of the storage compartment in real time. The display module is also used to receive the user's storage mode selection operation and storage confirmation operation, wherein the display module is generally installed on the door body of the locker.

[0121] When the embodiment of the present invention is implemented, if there is a need to supplement the stored items, the user can perform corresponding operations on the display module. After confirming that the display module has received the user's storage mode selection operation and storage confirmation operation, the controller can first confirm the current suitable storage location of the item based on the space utilization rate of each storage space, and then use the voice module to recommend the determined storage location of the item to the user.

[0122] It should be noted that storage modes may include fruit and vegetable mode, milk and egg mode, beverage mode, etc. Different storage modes have different item storage control temperature requirements. Therefore, when users store items in the locker, they can select the corresponding storage mode from all the storage modes displayed on the display module according to the item classification of the items to be stored, and perform the storage confirmation operation (for example, press the storage item button). After that, they can place the items to be stored at the item storage location indicated by the voice prompt.

[0123] It should be noted that the embodiment of the present invention displays the space utilization rate of each storage space and / or the space utilization rate of the storage compartment through the display module, which can help users to more intuitively understand the current usage of the locker, replenish stored items in time or deal with stored items in time. At the same time, the voice module recommends storage locations for items to users, which can help users to achieve accurate placement and reduce door opening time, thereby achieving energy-saving effects.

[0124] Combination Fig. 9 FIG. 1 is a flowchart of a controller of a locker provided by another embodiment of the present invention. As one of the optional embodiments, the controller determines whether the storage room is replenished with stored items, specifically including steps S131 to S133:

[0125] Step S131, judging whether the storage room has been replenished with stored items according to the change in the weight of the items in each storage space;

[0126] Step S132: when the weight of the items in at least one storage space increases, it is determined that the storage room has been replenished with stored items;

[0127] Step S133: When the weight of the items in all the storage spaces has not increased, it is determined that no additional items have been stored in the storage room.

[0128] On the basis of the above embodiment, when the embodiment of the present invention is implemented, the controller executes Figure 5 In step S13 shown, it can be determined whether the storage room has been replenished with stored items based on the change in the weight of the items in each storage space, that is, whether there is a storage space where the weight of the items has increased. If the weight of the items in at least one storage space has increased, it is determined that the storage room has been replenished with stored items. If the weight of the items in all the storage spaces has not increased, it is determined that the storage room has not been replenished with stored items.

[0129] It can be understood that the change in the weight of items in the storage space can be determined by the pressure value detected by the pressure sensor. If the pressure value corresponding to the weight of items in a certain storage space is detected to be greater than the pressure value corresponding to the weight of the items detected last time, that is, the pressure value becomes larger, it means that the weight of the items in the storage space has increased.

[0130] As one of the optional embodiments, the controller controls the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controls the operation of the DC motor, which specifically includes the following steps:

[0131] Obtaining the temperature of items in the target storage space;

[0132] Calculating the temperature difference between the temperature of the items in the target storage space and the set temperature;

[0133] When the temperature difference is greater than the preset temperature difference threshold, the electric damper corresponding to the air outlet in the target storage space is controlled to open, all other electric dampers are controlled to close, and the DC motor is controlled to work until the temperature difference between the temperature of the items in the target storage space and the set temperature is no greater than the preset temperature difference threshold, and then it is re-determined whether the storage room is replenished with stored items.

[0134] Combination Fig.10FIG. 1 is a flowchart of a controller of a locker provided by another embodiment of the present invention. Based on the above embodiment, when the embodiment of the present invention is implemented, the controller executes Figure 5 In step S15 shown in the figure, the temperature of the items in the target storage space can be obtained by real-time detection by an infrared sensor ( Fig.10 Step S151 is shown), and then according to the obtained temperature of the object in the target storage space, the temperature difference between the temperature of the object in the target storage space and the set temperature is calculated ( Fig.10 Then, it is determined whether the calculated temperature difference is greater than a preset temperature threshold value ( Fig.10 If the calculated temperature difference is greater than the preset temperature threshold, the electric damper corresponding to the air outlet in the target storage space is controlled to open, all other electric dampers are controlled to close, and the DC motor is controlled to work ( Fig.10 After a certain period of time, the temperature of the items in the target storage space can be re-acquired, the temperature difference can be re-calculated, the temperature difference can be re-compared with the preset temperature threshold, and corresponding processing can be performed according to the comparison result (i.e., returning Fig.10 Step S151 is shown, until it is determined that the temperature difference between the temperature of the items in the target storage space and the set temperature is not greater than the preset temperature difference threshold, it is re-determined whether the storage room is replenished with stored items, that is, returning to step S13.

[0135] It is understandable that if it is determined that the calculated temperature difference is not greater than the preset temperature threshold, it means that there is no need to accurately and quickly cool down only the items in the target storage space. Therefore, it is possible to directly return to step S13 and continue to execute subsequent steps.

[0136] Exemplary, combined Figure 2As shown, after determining that the space utilization rate of the storage room is between the first set value and the second set value, assuming that the user replenishes the storage items in the first storage space, the pressure value corresponding to the weight of the items in the first storage space detected by the first pressure sensor last time (i.e., before the user replenishes the storage items in the first storage space) is F1, and the pressure value corresponding to the weight of the items in the first storage space detected by the first pressure sensor currently (i.e., after the user replenishes the storage items in the first storage space) is F2, then F2 is greater than F1, indicating that the storage room has been replenished with storage items, and the purpose of the replenished storage items is identified according to the first pressure sensor. The marked storage space is the first storage space. Furthermore, the temperature T1 of the items in the first storage space is obtained by real-time detection through the first infrared sensor, and the temperature difference ΔT=T1-T0 between T1 and the set temperature T0 is calculated. If ΔT is determined to be greater than the preset temperature threshold, the first electric damper corresponding to the first air outlet in the first storage space is controlled to open, the second electric damper and the third electric damper are controlled to close, and the DC motor is controlled to work. At this time, only the items in the first storage space are cooled quickly and accurately, until the temperature of the items in the first storage space reaches the set temperature T0, the first electric damper is controlled to close, that is, the current temperature control mode is exited.

[0137] The embodiment of the present invention also provides a method for controlling a locker, see Fig.11 FIG. 1 is a flow chart of a method for controlling a locker provided in an embodiment of the present invention. The method is applicable to the locker described in any of the above embodiments. The method is executed by the controller and includes steps S101 to S104:

[0138] Step S101, obtaining the space utilization rate of the storage compartment according to the weight of the items in each storage space;

[0139] Step S102: when the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items;

[0140] Step S103: If yes, identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor;

[0141] Step S104: If not, all electric dampers are controlled to open and the DC motor is controlled to work.

[0142] In some embodiments, obtaining the space utilization rate of the storage compartment according to the weight of the items in each storage space specifically includes:

[0143] Get the weight of items in each storage space;

[0144] Calculate the space utilization rate of each storage space according to the weight of items in each storage space;

[0145] The space utilization rate of the storage compartment is obtained according to the sum of the space utilization rates of all storage spaces.

[0146] In some embodiments, calculating the space utilization rate of each storage space according to the weight of items in each storage space specifically includes:

[0147] According to the formula Calculate the space utilization rate of each storage space; where p represents the space utilization rate of the storage space, L represents the pressure value corresponding to the weight of the items in the storage space detected by the pressure sensor, L0 represents the no-load pressure value of the pressure sensor, and Lm represents the full-load pressure value of the pressure sensor.

[0148] In some embodiments, the locker further includes a human sensing module and a voice module;

[0149] The method further comprises:

[0150] Comparing the space utilization rate of the storage compartment with a first set value and a second set value respectively;

[0151] When the space utilization rate of the storage room is between the first set value and the second set value, it is determined that the space utilization rate of the storage room is within a preset normal range;

[0152] When the space utilization rate of the storage room is less than the first set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is empty and to replenish the stored items in time;

[0153] When the space utilization rate of the storage room is greater than the second set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is full and to deal with the stored items in time.

[0154] In some embodiments, the method further comprises:

[0155] When the space utilization rate of the storage room is less than the first set value, determining whether the storage room is replenished with stored items within a first preset time period;

[0156] If not, the voice module is used to send an alarm to the user, and it is determined whether the storage room is replenished with stored items within the second preset time period;

[0157] If not, the locker is controlled to enter a sleep mode.

[0158] In some embodiments, the locker further includes a human sensing module and a voice module;

[0159] The method further comprises:

[0160] comparing the space utilization rate of each storage space with the third set value and the fourth set value respectively;

[0161] When the space utilization rate of any storage space is less than the third set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate less than the third set value is empty, and to replenish the stored items in time;

[0162] When the space utilization rate of any storage space is greater than the fourth set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate greater than the fourth set value is full, and the stored items are handled in time.

[0163] In some embodiments, the locker further comprises:

[0164] A display module, used for displaying the space utilization rate of each storage space and / or the space utilization rate of the storage compartment in real time, and receiving a user's storage mode selection operation and storage confirmation operation;

[0165] The method further comprises:

[0166] After the display module receives the user's storage confirmation operation, the object storage location is confirmed according to the space utilization rate of each storage space, and the object storage location is recommended to the user by using the voice module.

[0167] In some embodiments, determining whether the storage room is replenished with stored items specifically includes:

[0168] Determining whether the storage room has been replenished with stored items based on the change in the weight of the items in each storage space;

[0169] When the weight of the items in at least one storage space increases, it is determined that the storage room has been replenished with stored items;

[0170] When the weight of the items in all the storage spaces has not increased, it is determined that no items have been replenished and stored in the storage room.

[0171] In some embodiments, controlling the switch state of the electric damper according to the change in the temperature of the items in the target storage space and controlling the operation of the DC motor specifically includes:

[0172] Obtaining the temperature of items in the target storage space;

[0173] Calculating the temperature difference between the temperature of the items in the target storage space and the set temperature;

[0174] When the temperature difference is greater than the preset temperature difference threshold, the electric damper corresponding to the air outlet in the target storage space is controlled to open, all other electric dampers are controlled to close, and the DC motor is controlled to work until the temperature difference between the temperature of the items in the target storage space and the set temperature is no greater than the preset temperature difference threshold, and then it is re-determined whether the storage room is replenished with stored items.

[0175] It should be noted that the locker control method provided in an embodiment of the present invention can realize all the working processes of the locker described in any of the above embodiments, and the specific implementation scheme and technical effects achieved by the method are respectively the same as the specific implementation scheme and technical effects achieved by the lockers described in the above embodiments, and will not be repeated here.

[0176] In summary, an embodiment of the present invention provides a locker and a control method for the locker, wherein the locker includes a cabinet body, a storage compartment is provided inside the cabinet body, and the interior of the storage compartment is divided into at least one storage space by at least one shelf; an air supply duct is also provided inside the cabinet body, and the air supply duct is connected to each storage space through an air outlet, and a DC fan for air supply and an electric damper for controlling the air outlet state of each air outlet are provided inside the air supply duct; a pressure sensor is also provided for detecting the weight of items in each storage space; an infrared sensor is also provided for detecting the temperature of items in each storage space; a controller is also provided for: obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space; when the space utilization rate of the storage compartment is within a preset normal range, determining whether items are added to the storage compartment; if so, identifying the target storage space for the added items, controlling the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controlling the DC motor to work; if not, controlling all the electric dampers to be opened, and controlling the DC motor to work. The embodiment of the present invention can actively perform storage detection on the items in the locker through the pressure sensor to determine the number of items stored in the locker, thereby determining the space utilization rate of the storage room, and when the space utilization rate of the storage room is within a preset normal range, if there are new items stored in the storage room, the switch states of different electric dampers are controlled according to the weight, temperature and storage position of the items in the target storage space of the added items to achieve accurate and rapid cooling and reduce energy consumption. If there are no new items stored in the storage room, all the electric dampers are controlled to be fully opened to ensure that the temperature in the storage room is uniform, thereby achieving the purpose of energy saving and efficiency improvement.

[0177] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A locker, characterized in that: The locker includes: The cabinet body has a storage compartment inside, and the storage compartment is divided into at least one storage space by at least one shelf; the cabinet body is also provided with an air supply duct inside, and the air supply duct is connected to each storage space through an air outlet, and a DC fan for air supply and an electric damper for controlling the air outlet state of each air outlet are provided inside the air supply duct; Pressure sensors are used to detect the weight of items in each storage space; Infrared sensors are used to detect the temperature of items in each storage space; Controller for: Obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space; When the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items; If yes, then identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor; If not, all electric dampers are controlled to open and the DC motor is controlled to work.

2. The locker according to claim 1, characterized in that: The controller obtains the space utilization rate of the storage compartment according to the weight of the items in each storage space, specifically including: Get the weight of items in each storage space; Calculate the space utilization rate of each storage space according to the weight of items in each storage space; The space utilization rate of the storage compartment is obtained according to the sum of the space utilization rates of all storage spaces.

3. The locker according to claim 2, characterized in that: The controller calculates the space utilization rate of each storage space according to the weight of the items in each storage space, specifically including: According to the formula Calculate the space utilization rate of each storage space; where p represents the space utilization rate of the storage space, L represents the pressure value corresponding to the weight of the items in the storage space detected by the pressure sensor, L0 represents the no-load pressure value of the pressure sensor, and Lm represents the full-load pressure value of the pressure sensor.

4. The locker according to claim 1, characterized in that: The locker also includes a human sensing module and a voice module; The controller is also used for: Comparing the space utilization rate of the storage compartment with a first set value and a second set value respectively; When the space utilization rate of the storage room is between the first set value and the second set value, it is determined that the space utilization rate of the storage room is within a preset normal range; When the space utilization rate of the storage room is less than the first set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is empty and to replenish the stored items in time; When the space utilization rate of the storage room is greater than the second set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage room is full and to deal with the stored items in time.

5. The locker according to claim 4, characterized in that: The controller is also used for: When the space utilization rate of the storage room is less than the first set value, determining whether the storage room is replenished with stored items within a first preset time period; If not, a voice module is used to send an alarm to the user, and it is determined whether the storage room is replenished with stored items within a second preset time period; If not, the locker is controlled to enter a sleep mode.

6. The locker according to claim 1, characterized in that: The locker also includes a human sensing module and a voice module; The controller is also used for: comparing the space utilization rate of each storage space with the third set value and the fourth set value respectively; When the space utilization rate of any storage space is less than the third set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate less than the third set value is empty, and to replenish the stored items in time; When the space utilization rate of any storage space is greater than the fourth set value, the human sensing module is used to determine whether there is a user within the preset range of the locker. If so, the voice module is used to remind the user that the storage space with a space utilization rate greater than the fourth set value is full, and the stored items are handled in time.

7. The locker according to claim 1, characterized in that: The locker also includes: A display module, used for displaying the space utilization rate of each storage space and / or the space utilization rate of the storage compartment in real time, and receiving a user's storage mode selection operation and storage confirmation operation; The controller is also used for: After the display module receives the user's storage confirmation operation, the object storage location is confirmed according to the space utilization rate of each storage space, and the object storage location is recommended to the user by using the voice module.

8. The locker according to claim 1, characterized in that: The controller determines whether the storage room is replenished with stored items, specifically including: Determining whether the storage room has been replenished with stored items based on the change in the weight of the items in each storage space; When the weight of the items in at least one storage space increases, it is determined that the storage room has been replenished with stored items; When the weight of the items in all the storage spaces has not increased, it is determined that no items have been replenished and stored in the storage room.

9. The locker according to any one of claims 1 to 8, characterized in that: The controller controls the switch state of the electric damper according to the change of the temperature of the items in the target storage space, and controls the operation of the DC motor, specifically including: Obtaining the temperature of items in the target storage space; Calculating the temperature difference between the temperature of the items in the target storage space and the set temperature; When the temperature difference is greater than the preset temperature difference threshold, the electric damper corresponding to the air outlet in the target storage space is controlled to open, all other electric dampers are controlled to close, and the DC motor is controlled to work until the temperature difference between the temperature of the items in the target storage space and the set temperature is no greater than the preset temperature difference threshold, and then it is re-determined whether the storage room is replenished with stored items.

10. A method for controlling a locker, characterized in that: Applicable to the locker according to any one of claims 1 to 9, the method is executed by the controller, and the method comprises: Obtaining the space utilization rate of the storage compartment according to the weight of items in each storage space; When the space utilization rate of the storage room is within a preset normal range, determining whether the storage room is replenished with stored items; If yes, then identify the target storage space for the supplementary storage items, control the switch state of the electric damper according to the temperature change of the items in the target storage space, and control the operation of the DC motor; If not, all electric dampers are controlled to open and the DC motor is controlled to work.

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