A low-temperature fresh-keeping monitoring system and method for controlled atmosphere storage of fresh grapes

Abstract

The present invention discloses a low-temperature fresh-keeping monitoring system and method for a controlled atmosphere storage facility for fresh grapes. The system comprises utilizing machine vision equipment and detection equipment to obtain a first degree of grape maturity; obtaining a first storage time at a preset time node based on the first degree of maturity; obtaining a second storage time at the same time node based on an empirical curve of storable time; determining whether there is an abnormality in grape storage based on the first and second storage times; assigning a storage location to the grapes based on grape variety information and the third storage time; selecting a ventilation time point based on the location of the controlled atmosphere storage facility and external weather information; and setting a ventilation device operating time period based on external and internal storage parameter information. The present invention can improve the safety of grape storage, reduce unnecessary grape waste, and effectively save ventilation energy consumption.

Description

Technical Field

[0001] The present invention relates to the field of low-temperature preservation of fresh grapes, and in particular to a low-temperature preservation monitoring system and method for a controlled atmosphere storage for fresh grapes. Background Art

[0002] A controlled atmosphere (CA) fresh-keeping warehouse is a relatively advanced grape preservation facility both domestically and internationally. It regulates the temperature and humidity within the warehouse, as well as the levels of oxygen, carbon dioxide, and other gases, keeping the grapes dormant. This effectively extends the storage period of grapes and offers significant economic benefits.

[0003] The existing controlled atmosphere preservation system mainly faces the following problems: First, after the grapes are put into storage, they are generally stored for a long time, and it is difficult for users to grasp the storage status of the grapes in the controlled atmosphere warehouse in real time. In addition, bacterial infection, frost, temperature and humidity environmental parameter errors, and abnormalities of related detection equipment that occur during the storage of grapes cannot be discovered and warned in time; secondly, some controlled atmosphere warehouses have a large internal space, and the storage locations of grapes in the controlled atmosphere warehouse are often randomly allocated without corresponding allocation rules. Different grapes have different storage periods. Grapes with a long storage period tend to be stored in the controlled atmosphere warehouse for a longer time. Frequent opening and closing of doors will cause fluctuations in the storage environment of grapes at locations such as doorways and aisles. Frequent fluctuations in the storage environment will also cause more respiration of grapes. , causing unnecessary losses to itself, which is not conducive to the long-term storage of grapes; finally, grapes need to be ventilated every day during the storage process in the controlled atmosphere storage. The time point for ventilation is often selected at a certain time in the evening based on experience, and the ventilation time period is generally fixed to two hours. However, the optimal ventilation time point and the optimal ventilation time period corresponding to different external environmental information are not the same. If the ventilation time point is selected appropriately, energy consumption can be greatly saved. The setting of the ventilation time period is also very important. If the ventilation time is too short, the ventilation effect cannot be achieved. If the ventilation time is too long, it will cause unnecessary fluctuations in temperature, humidity, carbon dioxide concentration, oxygen concentration, etc. in the storage environment, which is not conducive to the stable control of the grape storage environment and is not conducive to energy saving. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-temperature fresh-keeping monitoring system and method for a controlled atmosphere storage for fresh grapes, so as to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above object, the specific technical solution adopted by the present invention is:

[0006] A method for monitoring the low-temperature preservation of fresh grapes in a controlled atmosphere storage facility comprises the following steps:

[0007] At preset time intervals, machine vision equipment and detection equipment are used to obtain the first maturity of the grapes;

[0008] Obtaining a first storage time of a preset time node based on the first maturity;

[0009] Obtaining a second storage time of the time node based on the storable time experience change curve;

[0010] It is determined whether there is an abnormality in the storage of the grapes according to the first storage time and the second storage time.

[0011] The first maturity refers to the real-time maturity of the grapes corresponding to a preset time node;

[0012] The first storage time refers to the estimated maximum storage time of the grapes corresponding to the real-time maturity of the preset time node;

[0013] The second storage time refers to the estimated maximum storage time of the grapes corresponding to the preset time node;

[0014] The empirical variation curve of the storable time refers to the empirically estimated maximum storable time variation curve of grapes during normal storage in a controlled atmosphere storage facility.

[0015] Before obtaining the first maturity of the grapes using the machine vision device and the detection device at every preset time period, the method further includes:

[0016] Use machine vision equipment to identify grape variety information;

[0017] Obtaining a second maturity of the grapes based on a machine vision device and a detection device, and obtaining a third storage time of the grapes based on the second maturity;

[0018] assigning a storage location to the grapes based on the grape variety information and the third storage time;

[0019] The second maturity refers to the initial maturity of the grapes;

[0020] The third storage time refers to the initial estimated maximum storage time.

[0021] The allocating storage locations to the grapes based on the grape variety information and the third storage time includes: storing different varieties of grapes in different preset areas, and within the different preset areas, allocating storage locations for grapes of the same variety in order according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from doorways and aisles, and grapes that have been stored for a short time being stored relatively outward and close to doorways and aisles.

[0022] The method of obtaining the first maturity of the grapes using the machine vision device and the detection device includes: using the machine vision device to collect information on the variety, color, and average size of the grapes; using a sugar detector, an acidity detector, and a phenolic substance concentration detector to collect information on the sugar, acidity, and phenolic substance concentration of the grapes; and obtaining the maturity of the grapes based on the collected information.

[0023] After determining whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the method further includes:

[0024] When an abnormality exists, the value of the preset time period is reduced, and when no abnormality exists, the value of the preset time period is increased;

[0025] Specifically, when there is an abnormality, the size of the preset time period is reduced by a, and the minimum is not less than T_min; when there is no abnormality, the size of the preset time period is increased by b, and the maximum is not greater than T_max. The values of a and b are preset in advance, and the value range of the preset time period is (T_min, T_max).

[0026] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0027] Respond to instructions sent by people through mobile terminals and cloud servers to initiate detection of whether there are any abnormalities in grape storage.

[0028] After determining whether there is an abnormality in the storage of grapes at the time node based on the first storage time and the second storage time of the grapes at the time node, the method further includes:

[0029] When an abnormality occurs, an abnormality prompt message is sent to the mobile terminal, and further identification is performed to determine whether the grapes are infected with bacteria or frosted. If bacterial infection or frost is found on the grapes, the grapes are sterilized or defrosted.

[0030] If no bacterial infection or frost is found on the grapes, a prompt message will be sent to the mobile terminal to remind people to check whether there are any problems with the on-site equipment, including whether the temperature and humidity sensors are normal, and whether the machine vision equipment, sugar tester, acidity tester, and phenolic substance concentration tester are normal.

[0031] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0032] After the grapes are stored in the corresponding location in the warehouse, the storage time is counted. When the storage time reaches the preset time point or the remaining estimated storage time reaches the preset time point, a prompt message is sent to the corresponding mobile terminal. When the maximum storage safety period is about to be reached, an alarm message is sent to the mobile terminal.

[0033] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0034] Obtain the location of the controlled atmosphere storage and external weather information, and select the time point for the ventilation equipment to operate based on the location and external weather information;

[0035] Based on external and internal parameter information, set the working time period of the ventilation equipment;

[0036] The external and internal parameter information includes external temperature and humidity, carbon dioxide concentration, oxygen concentration, temperature, humidity in the warehouse, and the volume of air required for ventilation in the warehouse.

[0037] According to another aspect of the present invention, there is also provided a controlled atmosphere storage low-temperature preservation monitoring system for fresh grapes, comprising:

[0038] Control module, ventilation module, storage location management module, information collection module, sterilization module, defrost module, cloud server, mobile terminal;

[0039] The information collection module uses machine vision equipment and detection equipment to obtain the first maturity of the grapes at every preset time period;

[0040] The control module obtains a first storage time at a preset time node based on the first maturity; obtains a second storage time at the time node based on an empirical change curve of the storable time; and determines whether there is an abnormality in grape storage based on the first storage time and the second storage time.

[0041] The storage location management module allocates a storage location to the grapes based on the grape variety information and the third storage time;

[0042] The ventilation module realizes automatic ventilation in the warehouse under the control of the control module.

[0043] The storage location management module assigns storage locations to the grapes based on the grape variety information and the third storage time, including: storing grapes of different varieties in different preset areas, and assigning storage locations to grapes of the same variety in the different preset areas in order according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from the door and aisle, and grapes that have been stored for a short time being stored relatively outward and close to the door and aisle;

[0044] The grape variety information is obtained based on recognition by a machine vision device;

[0045] The third storage time refers to the initial estimated maximum storage time, and the second maturity of the grapes is obtained based on machine vision equipment and detection equipment, and the third storage time is obtained in combination with the second maturity; the second maturity refers to the initial maturity of the grapes.

[0046] The storage location management module also collects storage batches, grape varieties, storage locations, storage time, storage time, and estimated storage time, and sends the above data information to the control module.

[0047] The ventilation module specifically includes a number of ventilation fans evenly distributed in the air conditioning storage;

[0048] The automatic ventilation in the warehouse is realized under the control of the control module, including: the control module sets the ventilation time point of the ventilation module based on the location of the controlled atmosphere warehouse and the external weather information; the control module also sets the working time period of the ventilation equipment based on the external and internal parameter information; the external and internal parameter information include the external temperature and humidity, the carbon dioxide concentration, oxygen concentration, temperature, humidity in the warehouse, and the volume required for ventilation in the warehouse.

[0049] The detection equipment includes a sugar detector, an acidity detector, and a phenolic substance concentration detector; in addition to the detection equipment, the information acquisition module also includes a temperature sensor, a humidity sensor, a carbon dioxide concentration sensor, an oxygen concentration sensor, a position sensor, and an external weather information acquisition module. The information acquisition module sends the collected data information to the control module.

[0050] After the control module determines whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the control module further includes: when an abnormality exists, reducing the value of the preset time period; when no abnormality exists, increasing the value of the preset time period.

[0051] After the control module determines whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the control module further includes: when an abnormality exists, starting the sterilization and defrosting modules to perform operations or prompting people to check whether the on-site equipment is abnormal.

[0052] The control module collects and stores relevant data information and sends it to the cloud server, and people can query or obtain the above relevant data information through mobile terminals;

[0053] The relevant data information includes storage batch, grape variety, storage location, storage time, storage time, estimated storage time, temperature and humidity information in the warehouse, carbon dioxide concentration information in the warehouse, oxygen concentration information in the warehouse, prompt information, alarm information, the actual estimated maximum storage time of grapes, and external weather information.

[0054] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a low-temperature fresh-keeping monitoring system and method for a controlled atmosphere storage for fresh grapes; the system can detect whether there are any abnormalities in the storage process of grapes, and send grape storage-related data information to a cloud server, so that people can use mobile terminals to view and obtain the storage status of grapes in real time, thereby improving the safety of the grape storage process; the system allocates corresponding storage locations to grapes based on their variety and maturity information, thereby reducing unnecessary loss of the grapes themselves and facilitating the long-term storage of grapes; and by selecting and setting appropriate ventilation time points and time periods, the ventilation energy consumption can be effectively saved while achieving precise control of the ventilation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a flow chart of the low-temperature preservation monitoring method for fresh-table grapes in a controlled atmosphere storage;

[0056] Figure 2 This is a schematic diagram of the structure of the low-temperature preservation monitoring system for controlled atmosphere storage of fresh grapes;

[0057] Figure 3 It is a schematic diagram for comparing the stored time experience and the real-time change curve;

[0058] Figure 4 A schematic diagram comparing maturity experience and real-time change curves. DETAILED DESCRIPTION

[0059] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0060] A method for monitoring the low-temperature preservation of fresh grapes in a controlled atmosphere storage, the process is as follows: Figure 1 As shown, it includes the following steps:

[0061] At preset time intervals, machine vision equipment and detection equipment are used to obtain the first maturity of the grapes;

[0062] Obtaining a first storage time of a preset time node based on the first maturity;

[0063] Obtaining a second storage time of the time node based on the storable time experience change curve;

[0064] It is determined whether there is an abnormality in the storage of the grapes according to the first storage time and the second storage time.

[0065] The first maturity refers to the real-time maturity of the grapes corresponding to a preset time node;

[0066] The first storage time refers to the expected maximum storage time of grapes corresponding to the real-time maturity at a preset time node.

[0067] The second storage time refers to the expected maximum storage time of grapes corresponding to the experience at a preset time node.

[0068] The experience change curve of the storage time refers to the change curve of the expected maximum storage time of grapes in the normal storage process in a controlled atmosphere storage.

[0069] As Figure 3 and Figure 4 shown, in the normal storage process of grapes, as the storage time of grapes in the controlled atmosphere storage increases, the sugar content, acidity value, and phenolic substance concentration of grapes will gradually change. Generally speaking, the maturity z of grapes will gradually increase, and the corresponding storage time y will gradually decrease. That is, the storage time y of grapes has a corresponding experience change curve of the storage time. For example, when the maturity of Shine Muscat at the time of storage is 70%, after normal storage for 2 months, its maturity should be 75%, and the storage time should be 4 months. After normal storage for 4 months, its maturity should be 80%, and the storage time should be 2 months. The example here is only used to help people understand the technical solution of the present invention. The experience change curve of the storage time can be obtained based on historical experience and updated in real time through self-learning. That is, different time nodes t during the storage process are expected to correspond to different maturities and the second storage time.

[0070] At every preset time period or in response to an instruction issued by people through a mobile terminal and a cloud server, a machine vision device and a detection device are used to obtain the first maturity of grapes. Based on the first maturity, the first storage time Y1 at a preset time node is obtained, and based on the above-mentioned experience change curve of the storage time, the second storage time y1 at this time node is obtained.

[0071] Based on the first storage time Y1 and the second storage time y1, it is judged whether there is an abnormality, which can effectively detect that the decline rate of the storage time is too fast. As Figure 3 shown, based on the experience change curve of the storage time, it is judged that the preset time node t1 should be able to be stored for another y1 months, but according to the current maturity detection result, the first storage time corresponding to the preset time node t1 is only Y1 months, and Y1 < y1. At this time, it indicates that there is an abnormality in the storage of grapes, and a prompt message needs to be sent, and the cause of the abnormality is further identified and corresponding processing is carried out. In order to use the first storage time Y1 and the second storage time y1 to accurately judge whether there is an abnormality in the storage process of grapes, a corresponding threshold is set to measure the difference between the two. When the difference between the two exceeds this threshold, it indicates that there is an abnormality in the storage of grapes.

[0072] Before obtaining the first maturity of the grapes using the machine vision device and the detection device at every preset time period, the method further includes:

[0073] Use machine vision equipment to identify grape variety information;

[0074] Obtaining a second maturity of the grapes based on a machine vision device and a detection device, and obtaining a third storage time of the grapes based on the second maturity;

[0075] assigning a storage location to the grapes based on the grape variety information and the third storage time;

[0076] The second maturity refers to the initial maturity of the grapes;

[0077] The third storage time refers to the initial estimated maximum storage time.

[0078] The maximum storage time of grapes in a controlled atmosphere storage is related to both the grape variety and maturity. Different grape varieties have different third storage times in a controlled atmosphere storage. For example, different grape varieties such as Sunshine Rose, Summer Black, Kyoho, and Golden Finger have different maximum storage periods. Grapes of different maturity also have different third storage times in a controlled atmosphere storage. For example, the storage period of 70% mature Summer Black grapes is 4 months, the storage period of 80% mature Summer Black grapes is 2.5 months, and the storage period of 70% mature Sunshine Rose grapes is 6 months. The examples here are only used to help people understand the technical solution of the present invention.

[0079] The method of using a machine vision device to identify grape variety information specifically includes using a camera to capture image information of grapes to be stored, and identifying the grape variety based on image processing and recognition algorithms. The maturity of grapes is generally related to their color, average size, sugar content, acidity, and phenolic concentration. The method of obtaining the second maturity of the grapes based on the machine vision device and the detection device specifically includes: using the machine vision device to capture the grape variety, color, and average size; using a sugar meter, an acidity meter, and a phenolic concentration meter to capture the grape sugar, acidity, and phenolic concentration information; and obtaining the second maturity of the grapes based on the captured information.

[0080] To achieve higher economic returns, grapes are often stored for as long as possible, usually until the off-season or at a suitable time before being taken out for sale. Furthermore, frequent changes in the storage environment during grape storage often cause the grapes to respire more, resulting in unnecessary damage, which is not conducive to long-term storage.

[0081] The allocating storage locations to the grapes based on the grape variety information and the third storage time includes: storing different varieties of grapes in different preset areas, and within the different preset areas, allocating storage locations for grapes of the same variety in order according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from doorways and aisles, and grapes that have been stored for a short time being stored relatively outward and close to doorways and aisles.

[0082] The specific process of obtaining the first maturity of the grapes by using the machine vision device and the detection device is similar to the specific process of obtaining the second maturity of the grapes by using the machine vision device and the detection device.

[0083] After determining whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the method further includes:

[0084] When an abnormality exists, the value of the preset time period is reduced, and when no abnormality exists, the value of the preset time period is increased;

[0085] Specifically, when an abnormality occurs, the size of the preset time period is reduced by a, with the minimum not less than T_min; when no abnormality occurs, the size of the preset time period is increased by b, with the maximum not greater than T_max. The values of a and b are preset in advance, and the value range of the preset time period is (T_min, T_max); this can reduce energy consumption while ensuring the accuracy of grape storage anomaly detection.

[0086] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0087] Respond to instructions sent by people through mobile terminals and cloud servers to initiate detection of whether there are any abnormalities in grape storage.

[0088] After determining whether there is an abnormality in the storage of grapes at the time node based on the first storage time and the second storage time of the grapes at the time node, the method further includes:

[0089] When an abnormality occurs, an abnormality prompt message is sent to the mobile terminal, and further identification is performed to determine whether the grapes are infected with bacteria or frosted. If bacterial infection or frost is found on the grapes, the grapes are sterilized or defrosted.

[0090] If no bacterial infection or frost is found on the grapes, a prompt message will be sent to the mobile terminal to remind people to check whether there are any problems with the on-site equipment, including whether the temperature and humidity sensors are normal, and whether the machine vision equipment, sugar tester, acidity tester, and phenolic substance concentration tester are normal.

[0091] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0092] After the grapes are stored in the corresponding location in the warehouse, the storage time is counted. When the storage time reaches the preset time point or the remaining estimated storage time reaches the preset time point, a prompt message is sent to the corresponding mobile terminal. When the maximum storage safety period is about to be reached, an alarm message is sent to the mobile terminal.

[0093] The method for monitoring low-temperature preservation of table grapes in a controlled atmosphere storage facility further comprises:

[0094] Obtain the location of the controlled atmosphere storage and external weather information, and select the time point for the ventilation equipment to operate based on the location and external weather information;

[0095] Based on external and internal parameter information, set the working time period of the ventilation equipment;

[0096] The external and internal parameter information includes external temperature and humidity, carbon dioxide concentration, oxygen concentration, temperature, humidity in the warehouse, and the volume of air required for ventilation in the warehouse.

[0097] According to another aspect of the present invention, a low-temperature fresh-keeping monitoring system for a controlled atmosphere storage of fresh grapes is provided, the structure of which is as follows: Figure 2 As shown, including:

[0098] Control module, ventilation module, storage location management module, information collection module, sterilization module, defrost module, cloud server, mobile terminal;

[0099] The information collection module uses machine vision equipment and detection equipment to obtain the first maturity of the grapes at every preset time period;

[0100] The control module obtains a first storage time at a preset time node based on the first maturity; obtains a second storage time at the time node based on an empirical change curve of the storable time; and determines whether there is an abnormality in grape storage based on the first storage time and the second storage time.

[0101] The storage location management module allocates a storage location to the grapes based on the grape variety information and the third storage time;

[0102] The ventilation module realizes automatic ventilation in the warehouse under the control of the control module.

[0103] The storage location management module assigns storage locations to the grapes based on the grape variety information and the third storage time, including: storing grapes of different varieties in different preset areas, and assigning storage locations to grapes of the same variety in the different preset areas in order according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from the door and aisle, and grapes that have been stored for a short time being stored relatively outward and close to the door and aisle;

[0104] The grape variety information is obtained based on recognition by a machine vision device; the machine vision device is specifically a camera;

[0105] The third storage time refers to the initial estimated maximum storage time, and the second maturity of the grapes is obtained based on machine vision equipment and detection equipment, and the third storage time is obtained in combination with the second maturity; the second maturity refers to the initial maturity of the grapes.

[0106] The storage location management module also collects storage batches, grape varieties, storage locations, storage time, storage time, and estimated storage time, and sends the above data information to the control module.

[0107] The ventilation module specifically includes a number of ventilation fans evenly distributed in the air conditioning storage;

[0108] The automatic ventilation in the warehouse is realized under the control of the control module, including: the control module sets the ventilation time point of the ventilation module based on the location of the controlled atmosphere warehouse and the external weather information; the control module also sets the working time period of the ventilation equipment based on the external and internal parameter information; the external and internal parameter information include the external temperature and humidity, the carbon dioxide concentration, oxygen concentration, temperature, humidity in the warehouse, and the volume required for ventilation in the warehouse.

[0109] The detection equipment includes a sugar detector, an acidity detector, and a phenolic substance concentration detector; in addition to the detection equipment, the information acquisition module also includes a temperature sensor, a humidity sensor, a carbon dioxide concentration sensor, an oxygen concentration sensor, a position sensor, and an external weather information acquisition module. The information acquisition module sends the collected data information to the control module.

[0110] Among them, temperature sensors, humidity sensors, carbon dioxide concentration sensors, and oxygen concentration sensors are installed inside the warehouse to detect the temperature, humidity, carbon dioxide concentration, and oxygen concentration in the storage environment; temperature sensors and humidity sensors are installed outside the warehouse to detect the temperature and humidity information of the external environment.

[0111] After the control module determines whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the control module further includes: when an abnormality exists, reducing the value of the preset time period; when no abnormality exists, increasing the value of the preset time period.

[0112] After the control module determines whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the control module further includes: when an abnormality exists, starting the sterilization and defrosting modules to perform operations or prompting people to check whether the on-site equipment is abnormal.

[0113] The control module collects and stores relevant data information and sends it to the cloud server, and people can query or obtain the above relevant data information through mobile terminals;

[0114] The relevant data information includes storage batch, grape variety, storage location, storage time, storage time, estimated storage time, temperature and humidity information in the warehouse, carbon dioxide concentration information in the warehouse, oxygen concentration information in the warehouse, prompt information, alarm information, the actual estimated maximum storage time of grapes, and external weather information.

[0115] The present invention provides a low-temperature fresh-keeping monitoring system and method for a controlled atmosphere storage for fresh grapes. The system can detect whether there are abnormalities in the storage process of grapes and send grape storage-related data information to a cloud server, making it convenient for people to view and obtain the storage status of grapes in real time using mobile terminals, thereby improving the safety of the grape storage process. The system allocates corresponding storage locations to grapes based on their variety and maturity information, thereby reducing unnecessary loss of the grapes themselves and facilitating long-term storage of grapes. By selecting and setting appropriate ventilation time points and time periods, the ventilation process can be precisely controlled, thereby effectively saving ventilation energy consumption.

[0116] The above content is only the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A method for monitoring the low-temperature preservation of fresh grapes in a controlled atmosphere storage, characterized in that: The method comprises the following steps: obtaining a first maturity of grapes by using a machine vision device and a detection device at every preset time period; obtaining a first storage time of a preset time node based on the first maturity; Obtaining a second storage time of the time node based on the storable time experience change curve; determining whether there is an abnormality in the storage of the grapes according to the first storage time and the second storage time; It can effectively detect when the storage time decreases too quickly; The system also includes: when an abnormality occurs, sending an abnormality prompt message to the mobile terminal, and further identifying whether the grapes are infected with bacteria or frosted. If bacterial infection or frost is found on the grapes, the grapes are sterilized or defrosted. If no bacterial infection or frost is found on the grapes, a prompt message is sent to the mobile terminal to prompt people to check whether there are any problems with the on-site equipment, including whether the temperature and humidity sensors are normal, and whether the machine vision equipment, sugar detector, acidity detector, and phenolic substance concentration detector are normal. The first storage time refers to the estimated maximum storage time of the real-time maturity of the grapes corresponding to the preset time point; the second storage time refers to the estimated maximum storage time of the experience of the grapes corresponding to the preset time point; Before obtaining the first maturity of the grapes using the machine vision device and the detection device at each preset time period, the method further includes: identifying grape variety information using the machine vision device; obtaining a second maturity of the grapes based on the machine vision device and the detection device, and obtaining a third storage time for the grapes based on the second maturity; and assigning a storage location to the grapes based on the grape variety information and the third storage time. The allocating storage locations to the grapes based on the grape variety information and the third storage time includes: storing different varieties of grapes in different preset areas, and within the different preset areas, allocating storage locations for grapes of the same variety in order according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from doorways and aisles, and grapes that have been stored for a short time being stored relatively outward and close to doorways and aisles.

2. The method according to claim 1, characterized in that The empirical variation curve of the storable time refers to the empirically estimated maximum storable time variation curve of grapes during normal storage in a controlled atmosphere storage facility.

3. The method according to claim 2, characterized in that After determining whether there is an abnormality in the grape storage according to the first storage time and the second storage time, the method further includes: when an abnormality exists, reducing the value of the preset time period; when no abnormality exists, increasing the value of the preset time period.

4. The method according to claim 1, wherein The method for monitoring the low-temperature preservation of fresh grapes in a controlled atmosphere storage facility also includes: obtaining the location of the controlled atmosphere storage facility and external weather information, selecting a time point for the ventilation equipment to operate based on the location and external weather information; and setting a time period for the ventilation equipment to operate based on external and internal storage parameter information.

5. A controlled atmosphere storage low-temperature preservation monitoring system for fresh grapes, based on the method according to any one of claims 1 to 4, characterized in that: include: A control module, a ventilation module, a storage location management module, an information collection module, a sterilization module, a defrosting module, a cloud server, and a mobile terminal; the information collection module uses a machine vision device and a detection device to obtain a first maturity of the grapes at every preset time period; the control module obtains a first storage time at a preset time node based on the first maturity; Obtaining a second storage time of the time node based on the storable time experience change curve; determining whether there is an abnormality in the storage of the grapes based on the first storage time and the second storage time; and assigning a storage location to the grapes based on the grape variety information and the third storage time by the storage location management module; The ventilation module realizes automatic ventilation in the warehouse under the control of the control module.

6. The system according to claim 5, characterized in that The storage location management module assigns storage locations to the grapes based on the grape variety information and the third storage time, including: storing different varieties of grapes in different preset areas, and within the different preset areas, sequentially assigning storage locations for grapes of the same variety according to the third storage time, with grapes that have been stored for a long time being stored relatively inward and away from doorways and aisles, and grapes that have been stored for a short time being stored relatively outward and close to doorways and aisles.

7. The system according to claim 6, characterized in that The automatic ventilation in the warehouse is realized under the control of the control module, including: the control module sets the ventilation time point of the ventilation module based on the location of the controlled atmosphere warehouse and external weather information; the control module also sets the working time period of the ventilation equipment based on external and internal parameter information.

8. The system according to claim 7, wherein after the control module determines whether there is an abnormality in the storage of grapes based on the first storage time and the second storage time, the control module further comprises: When an abnormality occurs, the sterilization and defrosting modules are started to operate or people are prompted to check whether the on-site equipment is abnormal.

9. The system according to claim 5, wherein the obtaining the first maturity of the grapes by using a machine vision device and a detection device comprises: Machine vision equipment is used to collect the variety, color, and average size of the grapes. Sugar detectors, acidity detectors, and phenolic substance concentration detectors are used to collect information on the sugar, acidity, and phenolic substance concentration of the grapes. The maturity of the grapes is obtained based on the above collected information.

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