Sterilization control method, device, equipment and medium for fruit and vegetable refrigeration preservation

Abstract

The present disclosure provides a sterilization control method, device, equipment and storage medium for fruit and vegetable refrigeration preservation, wherein the method comprises: determining a sterilization mode according to storage box door switch information detected by a door switch detection module and weight information in the storage box detected by a weight detection module; and performing sterilization control operation based on sterilization control reference information and the sterilization mode. The present disclosure can automatically sterilize the storage box, ensure that the bacterial concentration in the storage box after delivery and purchase meets the requirements, ensure the safety of the staff, intelligently control the storage box to maintain a low-bacteria or sterile environment, provide more suitable storage conditions for fruits and vegetables, and improve the storage quality of fruits and vegetables.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural product preservation, and in particular to a sterilization control method, device and equipment for fruit and vegetable refrigeration preservation and a storage medium. BACKGROUND

[0002] After being picked, fruits and vegetables need to be stored in a fruit and vegetable refrigeration preservation device to keep them fresh. The fruit and vegetable refrigeration preservation device can be a mobile fruit and vegetable refrigeration preservation device or the like, and has the function of a cold storage, which can preserve fruits and vegetables. During the storage of fruits and vegetables, the preservation effect of the fruits and vegetables may not be ideal, and even the fruits and vegetables may rot. In addition, during long-term storage, the respiration of the fruits and vegetables may be relatively serious. Therefore, the stored fruits and vegetables need to be sterilized to improve the preservation effect of the fruits and vegetables. However, at present, the fruit and vegetable refrigeration preservation device can only generate sterilization gas by manually or regularly controlling the sterilization module to sterilize the fruits and vegetables during the storage of the fruits and vegetables. After the storage box of the fruit and vegetable refrigeration preservation device is handled, such as being unloaded or loaded, the concentration of bacteria in the storage box cannot be guaranteed, and the preservation effect of the fruits and vegetables cannot be guaranteed. SUMMARY

[0003] Therefore, the present application aims to solve the technical problem of providing a sterilization control method, device and equipment for fruit and vegetable refrigeration preservation and a storage medium, which can select a sterilization mode according to the door opening and closing information and the weight information in the storage box, and perform sterilization control operation based on sterilization control reference information and the sterilization mode.

[0004] According to a first aspect of the present application, a sterilization control method for fruit and vegetable refrigeration preservation is provided, wherein the fruit and vegetable refrigeration preservation device comprises a storage box, a door opening and closing detection module and a weight detection module. The method comprises determining a sterilization mode according to the storage box door opening and closing information detected by the door opening and closing detection module and the weight information in the storage box detected by the weight detection module, and performing sterilization control operation based on sterilization control reference information and the sterilization mode.

[0005] Optionally, the sterilization mode comprises a plasma sterilization mode and a sterilization gas sterilization mode.

[0006] Optionally, the determination of the sterilization mode according to the storage box door opening and closing information and the weight information in the storage box detected by the weight detection module comprises determining the sterilization mode as the plasma sterilization mode or the sterilization gas sterilization mode according to the storage box door opening and closing information in the case where the weight in the storage box is determined to change and the duration of the weight change exceeds a duration threshold.

[0007] Optionally, the determining the sterilization mode as the plasma sterilization mode or the sterilization gas sterilization mode according to the storage box door switch information comprises: if it is determined according to the storage box door switch information that the storage box door is in an open state, determining the sterilization mode as the plasma sterilization mode; if it is determined according to the storage box door switch information that the storage box door is in a closed state, determining the sterilization mode as the sterilization gas sterilization mode.

[0008] Optionally, the fruit and vegetable refrigeration and preservation equipment comprises: a temperature detection module, a sterilization gas concentration detection module; wherein the sterilization control reference information comprises at least one of the temperature information of the storage box detected by the temperature detection module, the sterilization gas concentration information of the storage box detected by the sterilization gas concentration detection module, and the weight information.

[0009] Optionally, the sterilization mode is the plasma sterilization mode; the fruit and vegetable refrigeration and preservation equipment comprises: a sterilization module, a cold air fan, and a condensing unit; and the sterilization control operation based on the sterilization control reference information and the sterilization mode comprises: controlling the sterilization module to generate plasma; controlling the cold air fan to be in a normal open state; and controlling the condensing unit based on the temperature information in the case that the condensing unit is turned on.

[0010] Optionally, the condensing unit comprises: a circulating fan and a throttling unit; and the control of the condensing unit based on the temperature information comprises: determining a temperature adjustment change amount in the storage box based on the temperature information; controlling the circulating fan to operate according to the temperature adjustment change amount and a current frequency of the circulating fan; and controlling an opening degree of the throttling unit according to the temperature adjustment change amount and current opening degree information of the throttling unit.

[0011] Optionally, the sterilization mode is the sterilization gas sterilization mode; the fruit and vegetable refrigeration and preservation equipment comprises: a humidification module; and the sterilization control operation based on the sterilization control reference information and the sterilization mode comprises: controlling the sterilization module to generate sterilization gas; wherein the sterilization gas comprises ozone; controlling the cold air fan and the humidification module to be in a normal open state; and controlling the condensing unit based on the temperature information, the weight information, and the sterilization gas concentration information in the case that the condensing unit is turned on.

[0012] Optionally, the control processing of the condensing unit based on the temperature information, the weight information and the sterilization gas concentration information comprises: determining a weight change amount in the storage box according to the weight information; determining a sterilization gas concentration in the storage box based on the sterilization gas concentration information; determining that a restocking process or a stocking process is performed in the storage box based on the weight change amount, and performing first unit control processing or second unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration.

[0013] Optionally, the condensing unit comprises a circulating fan; the first unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration comprises: in the case that the restocking process is performed in the storage box, if the sterilization gas concentration is less than a first concentration threshold, the circulating fan is controlled not to be started; if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein the first concentration threshold is less than the second concentration threshold.

[0014] Optionally, the second unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration comprises: in the case that the stocking process is performed in the storage box, if the sterilization gas concentration is less than a first concentration threshold, the circulating fan is controlled not to be started; if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein, in the case that the sterilization gas concentration is less than a third concentration threshold, the circulating fan is controlled to stop operating; the third concentration threshold is greater than the first concentration threshold and less than the second concentration threshold.

[0015] Optionally, the control of the circulating fan to operate based on the temperature information comprises: determining a temperature adjustment change amount in the storage box based on the temperature information; controlling the circulating fan to operate according to the temperature adjustment change amount and a current frequency of the circulating fan.

[0016] Optionally, it is determined whether a current temperature in the storage box is higher than a unit start temperature threshold based on the temperature information, and if yes, the condensing unit is controlled to start, and if no, the condensing unit is controlled to stop.

[0017] Optionally, the fruit and vegetable refrigeration and preservation equipment comprises a specified gas detection module and a fresh air module; the method further comprises: in the case that a specified gas concentration detected by the specified gas detection module is greater than a specified gas concentration threshold, the fresh air module is controlled to operate, and sterilization control operation is performed based on the sterilization control reference information and the plasma sterilization mode; wherein the specified gas comprises CO2.

[0018] Optionally, in a case where the length of the sterilization control operation is determined to exceed the length threshold, the sterilization control operation is stopped.

[0019] According to a second aspect of the present disclosure, a sterilization control device for fruit and vegetable refrigeration and preservation is provided, wherein the fruit and vegetable refrigeration and preservation device comprises a storage box, a door switch detection module, and a weight detection module; the sterilization control device comprises a mode determination unit configured to determine a sterilization mode according to storage box door switch information detected by the door switch detection module and weight information in the storage box detected by the weight detection module; and an operation control unit configured to perform a sterilization control operation based on sterilization control reference information and the sterilization mode.

[0020] According to a third aspect of the present disclosure, a sterilization control device for fruit and vegetable refrigeration and preservation is provided, comprising a storage unit; and a processor coupled to the storage unit, the processor being configured to execute a method as described above based on instructions stored in the storage unit.

[0021] According to a fourth aspect of the present disclosure, a fruit and vegetable refrigeration and preservation device is provided, comprising a sterilization control device for fruit and vegetable refrigeration and preservation as described above.

[0022] According to a fifth aspect of the present disclosure, a computer readable storage medium is provided, the computer readable storage medium storing computer instructions, the instructions being executed by a processor to perform a method as described above.

[0023] The sterilization control method, device, equipment, and storage medium for fruit and vegetable refrigeration and preservation of the present disclosure can select a sterilization mode according to storage box door switch information and weight information in the storage box, and perform a sterilization control operation based on sterilization control reference information and the sterilization mode, so as to automatically sterilize the storage box, ensure that the concentration of bacteria in the storage box after shipment and restocking meets the requirements, ensure the safety of the staff, intelligently control the storage box to maintain a low-bacteria or sterile environment, provide more suitable storage conditions for fruits and vegetables, improve the storage quality of fruits and vegetables, and improve the user's experience. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0025] Figure 1 Flowchart of an embodiment of the sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0026] Figure 2A Fig. 1 is a structural schematic diagram of a fruit and vegetable refrigeration and preservation device; Figure 2B Fig. 2 is a connection schematic diagram of a sterilization control device and other modules for fruit and vegetable refrigeration and preservation;

[0027] Figure 3 Fig. 3 is a control flow schematic diagram of a plasma sterilization mode based control in one embodiment of a sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0028] Figure 4 Fig. 4 is a control flow schematic diagram of a control of a condensing unit in one embodiment of a sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0029] Figure 5 Fig. 5 is a control flow schematic diagram of a sterilization gas sterilization mode based control in another embodiment of a sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0030] Figure 6 Fig. 6 is a control flow schematic diagram of a control of a condensing unit in another embodiment of a sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0031] Figure 7 Fig. 7 is a module schematic diagram of one embodiment of a sterilization control device for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0032] Figure 8 Fig. 8 is a module schematic diagram of an operation control unit in one embodiment of a sterilization control device for fruit and vegetable refrigeration and preservation according to the present disclosure;

[0033] Figure 9 Fig. 9 is a module schematic diagram of another embodiment of a sterilization control device for fruit and vegetable refrigeration and preservation according to the present disclosure. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings. In the description, all specific details imparted in the embodiments are not described in order to clearly and concisely explain the present disclosure. It should be appreciated that many specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure can be practiced without such specific details. In other instances, well-known methods, procedures, components, and networks have not been described in detail so as not to unnecessarily obscure aspects of the present disclosure.

[0035] It should be noted that the relative arrangement of components and steps, numerical expressions, and values set forth in the embodiments are not limiting of the scope of the present disclosure unless otherwise specifically stated.

[0036] Those skilled in the art can understand that the terms "first", "second" and the like in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, and neither represent any specific technical meaning nor indicate their logical order.

[0037] It should also be understood that in the embodiments of the present disclosure, "multiple" can mean two or more, and "at least one" can mean one, two or more.

[0038] It should also be understood that for any component, data or structure mentioned in the embodiments of the present disclosure, it can be understood as one or more in general, without explicit limitation or in the context of the preceding and following, unless the contrary is indicated.

[0039] In addition, the term "and / or" in the present disclosure is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present disclosure generally represents an "or" relationship between the front and rear associated objects.

[0040] It should also be understood that the description of the embodiments of the present disclosure focuses on the differences between the embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, they will not be repeated.

[0041] At the same time, it should be understood that, for the sake of brevity, the size of each part shown in the drawings is not drawn in accordance with the actual proportion relationship.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and does not in any way limit the disclosure and its application or uses.

[0043] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification where appropriate.

[0044] It should be noted that similar reference numerals and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0045] In addition, in order to avoid obscuring the present disclosure due to unnecessary details, only the processing steps and / or device structures closely related to the scheme according to the present disclosure are shown in the drawings, and other details not closely related to the present disclosure are omitted. It should be noted that similar reference numerals and letters in the drawings indicate similar items, and therefore, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0046] Figure 1 This is a flowchart illustrating an embodiment of the sterilization control method for refrigeration and preservation of fruits and vegetables according to the present disclosure. The sterilization control method for refrigeration and preservation of fruits and vegetables is applied in a sterilization control device, such as... Figure 1 As shown:

[0047] Step 101: Determine the sterilization mode based on the door switch information detected by the door switch detection module and the weight information inside the storage box detected by the weight detection module.

[0048] In one embodiment, the fruit and vegetable refrigeration and preservation equipment can be a fixed or mobile equipment, and includes a storage box, a door opening / closing detection module, a weight detection module, etc. The storage box functions as a cold storage unit for storing fruits and vegetables, which can include various fruits and vegetables.

[0049] The door switch detection module includes a door switch sensor, which can be installed on the storage box door. This module detects the open / closed state of the storage box door, generating and sending door switch information. Based on this information, the sterilization control device can determine whether the storage box has been opened or closed, for purposes such as shipping, receiving, and personnel entry. The weight detection module includes a gravity sensor, which detects the weight inside the storage box. This module generates and sends weight information. Multiple sterilization modes are available.

[0050] Step 102: Perform sterilization control operations based on sterilization control reference information and sterilization mode. The sterilization control reference information can be various parameter information, and the sterilization control operations can be various procedures.

[0051] The sterilization control method in the above embodiments can select the sterilization mode according to the storage box door opening and closing information and the weight information inside the storage box, and perform sterilization control operation based on sterilization control reference information and sterilization mode. It can automatically sterilize the storage box, ensuring that the bacterial concentration inside the storage box meets the requirements after shipment and receipt. It intelligently controls the storage box to maintain a low-bacterial or sterile environment, providing more suitable storage conditions for fruits and vegetables and improving the quality of fruit and vegetable storage.

[0052] In one embodiment, the sterilization mode can be multiple, such as plasma sterilization mode, sterilization gas sterilization mode, etc. By providing sterilization modes such as air sterilization and surface sterilization, it can be ensured that the bacterial concentration in the storage box after shipment and receipt meets the requirements, ensuring a low-bacterial or sterile environment in the storage box, and ensuring the safety of personnel.

[0053] like Figure 2AAs shown, the fruit and vegetable refrigeration and preservation device includes a humidification module 1, a centrifugal fan 2, a cold air fan 3, a condensing unit 4, a sterilization module 5, a fresh air outlet 6, a fresh air return air inlet 7, a fresh air duct 8, a temperature detection module 9, a cloth bag air duct 10, and a storage box 11, etc.

[0054] The centrifugal fan 2 is used to send the water vapor generated by the humidification module 1 into the storage box 11 to ensure the relative humidity of the fruits and vegetables. The refrigeration cycle system includes the cold air fan 3, the condensing unit 4, etc. The cold air fan 3 and the condensing unit 4 are used in combination. The outlet of the cold air fan 3 uniformly sends air to the storage box 11 through the cloth bag air duct 10, so as to reduce the temperature in the storage box 11 and ensure the low-temperature environment of the fruits and vegetables.

[0055] The sterilization module 5 can provide both air sterilization and surface sterilization functions. The fresh air module includes the fresh air outlet 6, the fresh air return air inlet 7, the fresh air duct 8, and a fresh air electric door, etc. The fresh air electric door is installed on the side plate of the condensing unit 4 and the storage box 11. Fresh air enters the storage box 11 from the fresh air electric door along the fresh air outlet 6 and the fresh air duct 8.

[0056] In one embodiment, the determination of the sterilization mode can adopt various methods. In the case where it is determined according to the weight information that the weight in the storage box changes and the duration of the weight change is more than a duration threshold, it is determined according to the storage box door opening and closing information that the sterilization mode is the plasma sterilization mode or the sterilization gas sterilization mode. The duration threshold can be set, for example, to 1, 2 seconds, etc.

[0057] After it is determined that the weight in the storage box changes and that the duration of the weight change is more than the duration threshold, the sterilization mode is further determined, which can avoid the situation that the unnecessary sterilization control operation occurs due to the detection abnormality of the weight detection module and other components, and the temporarily incorrect weight information is detected.

[0058] The determination of the sterilization mode as the sterilization mode or the sterilization gas sterilization mode can adopt various methods. For example, if it is determined according to the storage box door opening and closing information that the storage box door is in an open state, it is determined that the sterilization mode is the plasma sterilization mode; if it is determined according to the storage box door opening and closing information that the storage box door is in a closed state, it is determined that the sterilization mode is the sterilization gas sterilization mode.

[0059] In the case of out-of-stock or in-stock of the storage box, the storage box door needs to be opened and closed, resulting in changes in the amount of goods and the concentration of bacteria in the storage box; when the storage box door is open, the staff can be inside the storage box, and when the storage box door is closed, the staff is outside the storage box, and for the above two cases, air sterilization and surface sterilization can be used respectively to sterilize, which can ensure the safety of the staff and ensure that the concentration of bacteria in the storage box after out-of-stock or in-stock meets the requirements, and intelligently control the storage box to maintain a low-bacteria or sterile environment.

[0060] As shown in Figure 2B , the sterilization control device is connected with the door switch detection module, the weight detection module, the temperature detection module, the sterilization gas concentration detection module, the specified gas detection module, the sterilization module, the cold air machine, the condensing unit, the humidification module, the fresh air module, etc., for determining the sterilization mode based on multiple detection information and performing corresponding sterilization control operation.

[0061] In one embodiment, the fruit and vegetable refrigeration and preservation device includes a temperature detection module, a sterilization gas concentration detection module. The temperature detection module includes a temperature sensor, a temperature sensing bag, etc., and is used to detect the temperature in the storage box and generate temperature information. The sterilization gas can be ozone, etc., and the sterilization gas concentration detection module includes an ozone concentration detection sensor, etc., which can detect the concentration of ozone in the storage box, etc., and generate ozone concentration information, etc. sterilization gas concentration information.

[0062] The sterilization control reference information includes one or more of the temperature information detected by the temperature detection module, the sterilization gas concentration information detected by the sterilization gas concentration detection module, the weight information detected by the weight detection module, etc.

[0063] Based on multiple sterilization control reference information, sterilization control operation can be performed to ensure that the concentration of bacteria in the storage box meets the requirements under different sterilization modes, and intelligently control the storage box to maintain a low-bacteria or sterile environment.

[0064] Figure 3 For the control flow diagram based on the plasma sterilization mode in one embodiment of the sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure, the sterilization mode is the plasma sterilization mode, as shown in Figure 3 .

[0065] Step 301, control the sterilization module to generate plasma.

[0066] In an embodiment, in the plasma sterilization mode, plasma sterilization can be adopted, the plasma sterilization mode is harmless to human body, in the case that a person enters the storage box door open area or the storage box, sterilization is adopted in the plasma sterilization mode, and the safety of the personnel can be ensured. The sterilization module comprises a plasma generation module, which is used for generating plasma and inputting the plasma into the storage box.

[0067] In step 302, the cold air fan is controlled to be in a normal open state.

[0068] In step 303, in the case that the condensing unit is started, the condensing unit is controlled based on temperature information.

[0069] In the plasma sterilization mode, the cold air fan is controlled to be in a normal open state, and the condensing unit is controlled based on temperature information in the storage box, so that the concentration of sterilization gas in the storage box can meet the requirements, and the safety of the personnel can be ensured.

[0070] In an embodiment, the condensing unit comprises a circulating fan and a throttling unit, and the throttling unit can be various, for example, an electronic expansion valve. The electronic expansion valve can be arranged on the output or input refrigerant pipeline of the compressor in the condensing unit, and is used for adjusting the refrigerant flow entering the compressor or the refrigerant flow output by the compressor. Figure 4 The control flow of the condensing unit in one embodiment of the sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure is shown in FIG. 4. Figure 4

[0071] In step 401, the temperature adjustment change amount in the storage box is determined based on temperature information.

[0072] In step 402, the circulating fan is controlled to operate according to the temperature adjustment change amount and the current frequency of the circulating fan.

[0073] In step 403, the opening degree of the throttling unit is controlled according to the temperature adjustment change amount and the current opening degree information of the throttling unit.

[0074] The current frequency of the circulating fan and the current opening degree information of the throttling unit returned by the mainboard of the condensing unit can be obtained by sending a state information acquisition instruction to the mainboard of the condensing unit.

[0075] In the plasma sterilization mode, the circulating fan and the throttling unit are adjusted according to the temperature information, so that the concentration of bacteria in the storage box after the storage box is shipped or stocked can meet the requirements, the temperature in the storage box can be controlled to meet the requirements, and a low-bacteria or sterile environment can be maintained in the storage box.

[0076] ​In one embodiment, according to the detected weight information, the weight change amount in the storage box is determined as AM, when the duration of 0≤AM≤70kg, AM>70kg or AM<0 exceeds the continuous t duration (i.e. the duration threshold is t duration, t can be 1 second, 2 seconds, etc.; 70kg is equivalent to the average weight of an adult, AM>70kg can be approximately judged to have personnel entering), if the storage box door switch information detected by the door switch detection module determines that the storage box door is in an open state, the sterilization mode is determined to be a plasma sterilization mode.

[0077] In the plasma sterilization mode, the sterilization module is controlled to generate plasma, the cold fan is controlled to be always on, and the circulating fan and the electronic expansion valve (throttling unit) are controlled to operate according to the temperature in the storage box. The circulating fan is controlled to operate as follows:

[0078] Based on the temperature information in the storage box, the temperature adjustment change amount AT=T2-T1 in the storage box is determined; wherein T2 is the current temperature in the storage box, and T1 is the temperature in the storage box before the weight in the storage box changes.

[0079] The target frequency of the circulating fan is determined as:

[0080] Hm=Hn+K*△T (1-1);

[0081] Wherein, Hn is the current frequency of the circulating fan, K=[Hmax-Hmin] / (Tmax-Tmin), Hmax and Hmin are the maximum operating frequency and the minimum operating frequency of the circulating fan, Tmax and Tmin are the upper limit value and the lower limit value of the temperature allowed in the storage box.

[0082] The target opening of the electronic expansion valve is determined as:

[0083] dm=dn+ *dn (1-2);

[0084] Wherein, dn is the current opening of the electronic expansion valve.

[0085] According to the target frequency Hm of the circulating fan and the target opening dm of the electronic expansion valve, the circulating fan and the electronic expansion valve are adjusted respectively.

[0086] Figure 5 For another embodiment of the sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure, the control flow diagram based on the sterilization gas sterilization mode in the sterilization mode is a sterilization gas sterilization mode, as shown in Figure 5 .

[0087] Step 501, control the sterilization module to generate sterilization gas; wherein the sterilization gas includes ozone, etc.

[0088] In an embodiment, in the sterilization gas sterilization mode, sterilization can be performed by using ozone and the like sterilization gas, and the ozone and the like sterilization gas has biochemical reactions, and the sterilization gas sterilization mode is harmful to the human body. In the case that there is no person in the storage box, the sterilization gas sterilization mode is used for sterilization, so as to ensure the safety of the personnel. The sterilization module includes an ozone generation module, which is used for generating ozone and inputting the ozone into the storage box.

[0089] In step 502, the cooling fan and the humidification module are controlled to be in a normal open state. The humidification module includes a wet film humidifier and the like.

[0090] In step 503, in the case that the condensing unit is started, the condensing unit is controlled and processed based on the temperature information, the weight information, and the sterilization gas concentration information.

[0091] In the sterilization gas sterilization mode, the cooling fan and the humidification module are controlled to be in a normal open state, and the condensing unit is controlled and processed based on the temperature information, the weight information, and the sterilization gas concentration information, so as to perform sterilization processing on the storage box, ensure that the sterilization gas concentration in the storage box meets the requirements, and ensure the safety of the personnel.

[0092] Figure 6 For the control flow of the condensing unit in another embodiment of the sterilization control method for fruit and vegetable refrigeration and preservation according to the present disclosure, a schematic diagram is shown in FIG. 6 as follows: Figure 6

[0093] In step 601, the weight change amount in the storage box is determined according to the weight information.

[0094] In step 602, the sterilization gas concentration in the storage box is determined based on the sterilization gas concentration information.

[0095] In step 603, the first unit control processing or the second unit control processing is performed on the condensing unit according to the temperature information and the sterilization gas concentration based on the weight change amount, and it is determined that the storage box is subjected to the stocking processing or the delivery processing.

[0096] For example, in the case that the weight information indicates that the weight in the storage box changes and the duration of the weight change exceeds the duration threshold, if the weight change amount is greater than 0, it is determined that the storage box is subjected to the stocking processing, and if the weight change amount is less than 0, it is determined that the storage box is subjected to the delivery processing.

[0097] In the case that the storage box is subjected to the stocking processing, if the sterilization gas concentration is less than the first concentration threshold, the circulating fan is not started; if the sterilization gas concentration is greater than the second concentration threshold, the circulating fan is controlled to operate based on the temperature information; and the first concentration threshold is less than the second concentration threshold.

[0098] ​In the case of the goods-in process, the circulation fan is controlled according to the sterilization gas concentration, so that the sterilization gas concentration in the storage tank after the goods-in process meets the requirements, and the temperature in the storage tank can meet the requirements.

[0099] In the case of the goods-out process, if the sterilization gas concentration is less than the first concentration threshold, the circulation fan is not started; if the sterilization gas concentration is greater than the second concentration threshold, the circulation fan is controlled to operate based on the temperature information; wherein, in the case that the sterilization gas concentration is less than the third concentration threshold, the circulation fan is controlled to stop operating; the third concentration threshold is greater than the first concentration threshold and less than the second concentration threshold.

[0100] In the case of the goods-out process, the circulation fan is controlled according to the sterilization gas concentration, so that the sterilization gas concentration in the storage tank after the goods-out process meets the requirements, and the temperature in the storage tank can meet the requirements.

[0101] The circulation fan is controlled to operate based on the temperature information, which can include determining a temperature adjustment change in the storage tank based on the temperature information, and controlling the circulation fan to operate according to the temperature adjustment change and a current frequency of the circulation fan.

[0102] In the case of the goods-out process or the goods-in process, the condenser unit is controlled based on the temperature information and the sterilization gas concentration information in the sterilization mode, so that the storage tank can be sterilized, the sterilization gas concentration in the storage tank can meet the requirements, the temperature in the storage tank can meet the requirements, and the safety of personnel can be ensured.

[0103] For example, the sterilization gas is ozone, and the target ozone concentration Cn (10ppm) ~ Cm (40ppm) is set, i.e. the first concentration threshold is Cn, the second concentration threshold is Cm, and the third concentration threshold is (Cn+Cm) / 2.

[0104] According to the weight information, the weight change in the storage tank is determined as △M, and when the duration of 0≤△M≤70kg, △M>70kg or △M<0 exceeds the continuous t duration, at t+1 time (the duration corresponding to t+1 time is greater than t duration), if the storage tank door is determined to be in the closed state according to the storage tank door switch information detected by the door switch detection module, the sterilization mode is determined to be the sterilization gas sterilization mode.

[0105] Based on the △M determined before the storage tank door is in the closed state, it is determined that the goods-in process or the goods-in process has been performed in the storage tank, i.e. if 0≤△M≤70kg or △M>70kg is determined when the storage tank door is in the open state, it is determined that the goods-in process has been performed in the storage tank; if △M<0 is determined when the storage tank door is in the open state, it is determined that the goods-out process has been performed in the storage tank.

[0106] In the case that the in-storage box is in the process of the out-of-stock processing, the sterilization module is controlled to generate ozone; the cooling fan and the humidification module are controlled to be in the normal open state; if the concentration of the sterilization gas in the in-storage box is less than the first concentration threshold Cn, the circulation fan is controlled to be not started; if the concentration of the sterilization gas is greater than the second concentration threshold Cm, the circulation fan is controlled to operate based on the temperature information; the target frequency of the circulation fan is determined according to formula (1-1), and the circulation fan is controlled to operate based on the target frequency.

[0107] In the case that the in-storage box is in the process of the out-of-stock processing, the sterilization module is controlled to generate ozone; the cooling fan and the humidification module are controlled to be in the normal open state; if the concentration of the sterilization gas in the in-storage box is less than the first concentration threshold Cn, the circulation fan is controlled to be not started; if the concentration of the sterilization gas is greater than the second concentration threshold Cm, the circulation fan is controlled to operate based on the temperature information; the target frequency of the circulation fan is determined according to formula (1-1), and the circulation fan is controlled to operate based on the target frequency.

[0108] In the case that the in-storage box is in the process of the out-of-stock processing, the sterilization module is controlled to generate ozone; the cooling fan and the humidification module are controlled to be in the normal open state; if the concentration of the sterilization gas in the in-storage box is less than the first concentration threshold Cn, the circulation fan is controlled to be not started; if the concentration of the sterilization gas is greater than the second concentration threshold Cm, the circulation fan is controlled to operate based on the temperature information; the target frequency of the circulation fan is determined according to formula (1-1), and the circulation fan is controlled to operate based on the target frequency.

[0109] In one embodiment, in the case that the duration of the sterilization control operation is determined to exceed the duration threshold, the sterilization control operation is stopped. For example, when it is determined that the duration of the sterilization control operation in the plasma sterilization mode and / or the sterilization gas sterilization mode exceeds the duration threshold (which can be 3.5 hours, 4 hours, etc.), the sterilization mode is exited immediately, and the sterilization control operation is stopped. Stopping the sterilization control operation can include: controlling the sterilization module to generate plasma or ozone, etc., and stopping the corresponding control of the circulation fan, the electronic expansion valve, etc. After stopping the sterilization control operation, the corresponding control operation is performed according to the existing fruit and vegetable refrigeration and preservation control strategy.

[0110] By controlling the duration of the sterilization control operation, the resource consumption can be reduced and the service life of the equipment can be improved on the basis of ensuring that the concentration of the bacteria in the in-storage box after the out-of-stock and in-stock processing meets the requirements.

[0111] In an embodiment, in the process of sterilization control operation in the plasma sterilization mode and / or the sterilization gas sterilization mode, it is determined based on the temperature information whether the current temperature in the storage box is higher than the machine start temperature threshold value, if yes, the condensing machine is started, if not, the condensing machine is stopped. For example, the machine start temperature threshold value is A, and the current temperature in the storage box is determined to be B according to the temperature information detected by the temperature detection module, if B is higher than A, the condensing machine is started, if B is lower than or equal to A, the condensing machine is stopped.

[0112] By setting the machine start temperature threshold value, when the temperature in the storage box reaches the machine start temperature threshold value, the condensing machine is stopped, and when the temperature in the storage box is higher than the machine start temperature threshold value, the condensing machine is started, which can ensure that the temperature in the storage box meets the requirements and can reduce resource consumption to provide suitable storage conditions for fruits and vegetables.

[0113] In an embodiment, fruits and vegetables stored in the storage box will produce CO2, ethylene and other ripening substances during long-term storage due to respiration. The fruit and vegetable refrigeration and preservation equipment includes a specified gas detection module for detecting the concentration of a specified gas in the storage box. The specified gas detection module can include a CO2 concentration detection sensor, an ethylene concentration detection sensor, etc., and the specified gas can be CO2, ethylene, etc.

[0114] The specified gas concentration can be determined to be greater than or less than the specified gas concentration threshold value during sterilization control operation based on the plasma sterilization mode and the sterilization gas sterilization mode, or during sterilization control operation. In the case where the specified gas concentration detected by the specified gas detection module is greater than the specified gas concentration threshold value, the fresh air module is controlled to operate, and sterilization control operation is performed based on sterilization control reference information and the plasma sterilization mode; and in the process of sterilization control operation in the plasma sterilization mode, it is determined based on the temperature information whether the current temperature in the storage box is higher than the machine start temperature threshold value, if yes, the condensing machine is started, if not, the condensing machine is stopped.

[0115] For example, the specified gas is CO2, and in the case where the CO2 gas concentration is greater than the CO2 gas concentration threshold value, the fresh air module is controlled to operate, which can include controlling the fresh air electric door to be opened, etc.; and the sterilization control operation based on the sterilization control reference information and the plasma sterilization mode is the same as the sterilization control operation in the plasma sterilization mode in the above embodiment. For example, the sterilization module is controlled to generate plasma, the cold air fan is controlled to be in a constant open state, the circulating fan and the electronic expansion valve are adjusted according to the target frequency Hm of the circulating fan and the target opening degree dm of the electronic expansion valve, etc.

[0116] In the case that the CO2 gas concentration is less than or equal to the CO2 gas concentration threshold value, the fresh air module is controlled to stop running, the gas sterilization mode is exited, and the sterilization control operation is stopped; the sterilization control operation includes: stopping the control of the sterilization module to generate plasma, stopping the corresponding control of the circulating fan, the electronic expansion valve, and the like. After the sterilization control operation is stopped, the corresponding control operation is performed according to the existing fruit and vegetable refrigeration and preservation control strategy.

[0117] By controlling the fresh air module to run and perform the sterilization control operation in the case that the specified gas concentration is greater than the specified gas concentration threshold value, the storage box can be subjected to the air exchange treatment and sterilization, the excessive ripening substances generated due to the respiration of the fruits and vegetables in the storage box can be prevented, and the storage box can be controlled to maintain a low-bacteria or sterile environment, thereby providing more suitable storage conditions for the fruits and vegetables.

[0118] In one embodiment, as shown in Figure 7 The present disclosure provides a sterilization control device 70 for fruit and vegetable refrigeration and preservation, which includes a mode determination unit 71 and an operation control unit 72. The mode determination unit 71 determines the sterilization mode according to the storage box door switch information detected by the door switch detection module and the weight information in the storage box detected by the weight detection module. The operation control unit 72 performs the sterilization control operation based on the sterilization control reference information and the sterilization mode.

[0119] In one embodiment, the mode determination unit 71 determines the sterilization mode to be the plasma sterilization mode or the sterilization gas sterilization mode according to the storage box door switch information in the case that the weight in the storage box is determined to change according to the weight information and the duration of the weight change is longer than the duration threshold value.

[0120] If the storage box door is determined to be in the open state according to the storage box door switch information, the mode determination unit 71 determines the sterilization mode to be the plasma sterilization mode; if the storage box door is determined to be in the closed state according to the storage box door switch information, the mode determination unit 71 determines the sterilization mode to be the sterilization gas sterilization mode. The operation control unit 72 stops the sterilization control operation in the case that the duration of the sterilization control operation is longer than the duration threshold value.

[0121] In one embodiment, as shown in Figure 8 The operation control unit 72 includes: an air sterilization operation control unit 721, a surface sterilization operation control unit 722, a unit start-stop control unit 723, and a fresh air operation control unit 724. The air sterilization operation control unit 721 controls the sterilization module to generate plasma and controls the cold fan to be in the always-on state; in the case that the condensing unit is started, the air sterilization operation control unit 721 controls the condensing unit based on the temperature information.

[0122] For example, the air sterilization operation control unit 721 determines a temperature adjustment change amount in the storage box based on the temperature information; the air sterilization operation control unit 721 controls the operation of the circulating fan according to the temperature adjustment change amount and the current frequency of the circulating fan; and the air sterilization operation control unit 721 controls the opening degree of the throttling unit according to the temperature adjustment change amount and the current opening degree information of the throttling unit.

[0123] In one embodiment, the surface sterilization operation control unit 722 controls the sterilization module to generate sterilization gas; wherein the sterilization gas includes: ozone; the surface sterilization operation control unit 722 controls the cooling fan and the humidification module to be in an open state; and in the case that the condensing unit is turned on, the surface sterilization operation control unit 722 controls the condensing unit based on the temperature information, the weight information, and the sterilization gas concentration information.

[0124] The surface sterilization operation control unit 722 determines a weight change amount in the storage box according to the weight information; the surface sterilization operation control unit 721 determines a sterilization gas concentration in the storage box based on the sterilization gas concentration information; and the surface sterilization operation control unit 722 determines that a restocking process or a restocking process is performed in the storage box based on the weight change amount, and performs a first unit control process or a second unit control process on the condensing unit according to the temperature information and the sterilization gas concentration.

[0125] For example, in the case that the surface sterilization operation control unit 722 performs a restocking process in the storage box, if the sterilization gas concentration is less than a first concentration threshold, the circulating fan is not turned on; and if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein the first concentration threshold is less than the second concentration threshold.

[0126] In the case that the surface sterilization operation control unit 722 performs a restocking process in the storage box, if the sterilization gas concentration is less than a first concentration threshold, the circulating fan is not turned on; and if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein in the case that the sterilization gas concentration is less than a third concentration threshold, the circulating fan is controlled to stop operating; the third concentration threshold is greater than the first concentration threshold and less than the second concentration threshold.

[0127] The surface sterilization operation control unit 722 determines a temperature adjustment change amount in the storage box based on the temperature information, and controls the operation of the circulating fan according to the temperature adjustment change amount and the current frequency of the circulating fan.

[0128] In one embodiment, the unit start-stop control unit 723 determines whether the current temperature in the storage box is higher than a unit start temperature threshold based on the temperature information, and controls the condensing unit to start if yes, and controls the condensing unit to stop if no.

[0129] The fresh air operation control unit 724 controls the fresh air module to operate in a case where the specified gas concentration detected by the specified gas detection module is greater than the specified gas concentration threshold value, and performs sterilization control operation based on the sterilization control reference information and the plasma sterilization mode.

[0130] In one embodiment, as shown in FIG. 9, the sterilization control device for refrigeration and preservation of fruits and vegetables can include a memory 901, a processor 902, a communication interface 903, and a bus 904. The memory 901 is configured to store instructions, and the processor 902 is coupled to the memory 901 and configured to execute the sterilization control method for refrigeration and preservation of fruits and vegetables as described above based on the instructions stored in the memory 901. Figure 9

[0131] The memory 901 can be a high-speed RAM memory, a non-volatile memory, or the like, and the memory 901 can also be a memory array. The memory 901 can also be divided into blocks, and the blocks can be combined into a virtual volume according to certain rules. The processor 902 can be a central processing unit CPU, or an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement the sterilization control method for refrigeration and preservation of fruits and vegetables of the present disclosure.

[0132] In one embodiment, the present disclosure provides a fruit and vegetable refrigeration and preservation device, which includes the sterilization control device for refrigeration and preservation of fruits and vegetables as described in any of the above embodiments.

[0133] In one embodiment, the present disclosure provides a computer readable storage medium storing computer instructions, which, when executed by a processor, implement the method as described in any of the above embodiments.

[0134] The sterilization control method, device, equipment, and storage medium for refrigeration and preservation of fruits and vegetables as described in the above embodiments can select a sterilization mode according to storage box door opening and closing information and weight information in the storage box, and perform sterilization control operation based on sterilization control reference information and the sterilization mode. The sterilization control method, device, equipment, and storage medium can automatically sterilize the storage box, ensure that the bacterial concentration in the storage box after shipment and restocking meets the requirements, ensure that the sterilization gas concentration in the storage box meets the requirements, ensure the safety of the staff, control the temperature in the storage box to meet the requirements, prevent too much ripening substance from being produced in the storage box due to the respiration of fruits and vegetables, intelligently control the storage box to maintain a low-bacteria or sterile environment, provide more suitable storage conditions for fruits and vegetables, improve the storage quality of fruits and vegetables, and improve the user's experience.

[0135] ​The methods and systems of the present disclosure can be implemented in a number of ways. For example, the methods and systems of the present disclosure can be implemented via software, hardware, firmware, or any combination of software, hardware, and firmware. The above described order of steps for the methods is merely illustrative, and the steps of the methods of the present disclosure are not limited to the order specifically described above unless otherwise specifically stated. Furthermore, in some embodiments, the present disclosure can also be implemented as a program recorded on a recording medium, which includes machine readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the methods according to the present disclosure.

[0136] The description of the present disclosure is given for the sake of exemplification and description. It is not intended to limit the present disclosure to the form described, but it is intended to cover any modification and variation of the present disclosure. The embodiments are chosen and described in order to best explain the principles of the present disclosure and its practical application and to thereby enable others skilled in the art to best utilize the present disclosure in various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A sterilization control method for refrigeration and preservation of fruits and vegetables, wherein, The fruit and vegetable refrigeration and preservation device comprises a storage box, a door switch detection module and a weight detection module. A sterilization mode is determined according to storage box door switch information detected by the door switch detection module and weight information in the storage box detected by the weight detection module. The sterilization mode comprises a plasma sterilization mode and a sterilization gas sterilization mode. The sterilization mode is determined as the plasma sterilization mode or the sterilization gas sterilization mode according to the storage box door switch information when the weight in the storage box changes and the duration of the weight change exceeds a threshold duration according to the weight information. Sterilization control is performed based on sterilization control reference information and the sterilization mode. The sterilization mode is determined as the plasma sterilization mode if the storage box door is open according to the storage box door switch information, and the sterilization mode is determined as the sterilization gas sterilization mode if the storage box door is closed according to the storage box door switch information. The fruit and vegetable refrigeration and preservation device comprises a temperature detection module and a sterilization gas concentration detection module.

2. The method of claim 1, wherein, The sterilization control reference information comprises at least one of temperature information in the storage box detected by the temperature detection module, sterilization gas concentration information in the storage box detected by the sterilization gas concentration detection module and the weight information. The sterilization mode is the plasma sterilization mode. The fruit and vegetable refrigeration and preservation device comprises a sterilization module, a cold air fan and a condensing unit. The sterilization module generates plasma. The cold air fan is in a normal open state.

3. The method of claim 2, wherein, The condensing unit is controlled based on the temperature information when the condensing unit is turned on. The condensing unit comprises a circulating fan and a throttling unit. The temperature adjustment change amount in the storage box is determined based on the temperature information. The circulating fan is controlled to operate according to the temperature adjustment change amount and the current frequency of the circulating fan.

4. The method of claim 2, wherein, The throttling unit is controlled according to the temperature adjustment change amount and the current opening degree information of the throttling unit. The sterilization mode is the sterilization gas sterilization mode. The fruit and vegetable refrigeration and preservation device comprises a humidification module. The sterilization module generates sterilization gas. The sterilization gas comprises ozone. The cold air fan and the humidification module are in a normal open state. The condensing unit is controlled based on the temperature information, the weight information and the sterilization gas concentration information when the condensing unit is turned on.

5. The method of claim 4, wherein, The control processing of the condensing unit based on the temperature information, the weight information and the sterilization gas concentration information comprises: determining a weight change in the storage box according to the weight information; determining a sterilization gas concentration in the storage box based on the sterilization gas concentration information; determining that a restocking process or a stocking process is performed in the storage box based on the weight change, and performing first unit control processing or second unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration.

6. The method of claim 5, wherein, The condensing unit comprises a circulating fan, and the first unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration comprises: if the sterilization gas concentration is less than a first concentration threshold in the case that the restocking process is performed in the storage box, the circulating fan is controlled not to be started; if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein the first concentration threshold is less than the second concentration threshold.

7. The method of claim 6, wherein, The second unit control processing of the condensing unit according to the temperature information and the sterilization gas concentration comprises: if the sterilization gas concentration is less than a first concentration threshold in the case that the stocking process is performed in the storage box, the circulating fan is controlled not to be started; if the sterilization gas concentration is greater than a second concentration threshold, the circulating fan is controlled to operate based on the temperature information; wherein the circulating fan is controlled to stop operating in the case that the sterilization gas concentration is less than a third concentration threshold; the third concentration threshold is greater than the first concentration threshold and less than the second concentration threshold.

8. The method of claim 6 or 7, wherein, The control of the circulating fan to operate based on the temperature information comprises: determining a temperature adjustment change in the storage box based on the temperature information; controlling the circulating fan to operate according to the temperature adjustment change and a current frequency of the circulating fan.

9. The method of claim 2 or 4, further comprising: determining whether a current temperature in the storage box is higher than a unit start temperature threshold based on the temperature information, and controlling the condensing unit to start if yes, and controlling the condensing unit to stop if no.

10. The method of claim 1, wherein, The fruit and vegetable refrigeration and preservation device comprises a specified gas detection module and a fresh air module; the method further comprises: controlling the fresh air module to operate in the case that a specified gas concentration detected by the specified gas detection module is greater than a specified gas concentration threshold, and performing sterilization control operation based on the sterilization control reference information and the plasma sterilization mode; wherein the specified gas comprises CO2.

11. The method of claim 1, further comprising: stopping the sterilization control operation in the case that a duration of the sterilization control operation exceeds a duration threshold.

12. A sterilization control device for refrigeration preservation of fruits and vegetables, wherein, The fruit and vegetable refrigeration and preservation device comprises a storage box, a door switch detection module and a weight detection module; the sterilization control device comprises: A mode determining unit is configured to determine a sterilization mode according to the storage box door switch information detected by the door switch detection module and the weight information in the storage box detected by the weight detection module; wherein the sterilization mode includes a plasma sterilization mode and a sterilization gas sterilization mode; the determination of the sterilization mode includes: in a case where it is determined according to the weight information that the weight in the storage box changes and the duration of the weight change lasts for more than a threshold duration, it is determined according to the storage box door switch information that the sterilization mode is the plasma sterilization mode or the sterilization gas sterilization mode. The determination of the sterilization mode according to the storage box door switch information that the sterilization mode is the plasma sterilization mode or the sterilization gas sterilization mode includes: if it is determined according to the storage box door switch information that the storage box door is in an open state, it is determined that the sterilization mode is the plasma sterilization mode; if it is determined according to the storage box door switch information that the storage box door is in a closed state, it is determined that the sterilization mode is the sterilization gas sterilization mode. An operation control unit is configured to perform sterilization control operation based on sterilization control reference information and the sterilization mode. The fruit and vegetable refrigeration and preservation device includes a temperature detection module and a sterilization gas concentration detection module; and the sterilization control reference information includes at least one of the temperature information in the storage box detected by the temperature detection module, the sterilization gas concentration information in the storage box detected by the sterilization gas concentration detection module, and the weight information.

13. A sterilization control device for fruit and vegetable refrigeration and preservation, comprising: a memory; and a processor coupled to the memory, configured to execute the method of any one of claims 1 to 11 based on instructions stored in the memory.

14. A fruit and vegetable refrigeration and preservation device, comprising: the sterilization control device for fruit and vegetable refrigeration and preservation of claim 12 or 13.

15. A computer readable storage medium, storing computer instructions, the instructions being executed by a processor to perform the method of any one of claims 1 to 11.

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