A method and system for optimizing the storage management of kiwifruit

Abstract

This invention relates to the field of fruit storage technology, specifically to a method and system for optimizing the storage management of kiwifruit. The method includes: acquiring the quantity, ethylene concentration, and carbon dioxide concentration of kiwifruit in different zones within a storage warehouse; obtaining the necessary transfer indicators for each zone at the current time period based on the increase in ethylene concentration, increase in carbon dioxide concentration, and temperature within each zone; determining the zones to be transferred and their candidate zones; evaluating the suitability of each candidate zone for receiving kiwifruit from its corresponding zone based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution, and necessary transfer indicators; obtaining kiwifruit diversity factors based on the temperature difference between the zones where the kiwifruit received for transfer was located before being transferred and the candidate zones; and determining the target zones for kiwifruit based on the suitability, and then transferring and storing them. This invention enables timely adjustment of the storage temperature based on the state of the kiwifruit within the warehouse zones.

Description

Technical Field

[0001] This invention relates to the field of fruit storage technology, specifically to an optimized management method and system for kiwifruit storage. Background Technology

[0002] Kiwifruit is a typical climacteric fruit. At room temperature, the activity of the kiwifruit cells is not significantly restricted. However, during storage, the ethylene content produced by the kiwifruit increases over time. Since kiwifruit is highly sensitive to ethylene, this rapidly increases the respiration rate, causing the protopectin in the kiwifruit to convert into water-soluble pectin more quickly, leading to softening and spoilage. To extend the storage life of kiwifruit, current methods typically employ low-temperature storage to suppress respiration, thereby extending the shelf life.

[0003] To facilitate the management of kiwifruit storage, existing methods often involve storing kiwifruit of the same variety from different batches in the same warehouse and controlling the warehouse temperature uniformly. However, in reality, the ripeness of kiwifruit from different batches is not entirely consistent. If the same storage temperature is used, if the storage temperature is set too high, some kiwifruit will ripen prematurely or even rot. If the storage temperature is set too low, although it can accommodate kiwifruit with a higher ripeness level, it will significantly increase the energy cost of kiwifruit storage. Summary of the Invention

[0004] To address the problem that existing methods for storing kiwifruit at uniform temperatures lead to premature ripening of some kiwifruit or increased energy costs during storage, this invention aims to provide an optimized kiwifruit storage management method and system. The specific technical solution adopted is as follows:

[0005] In a first aspect, the present invention provides a method for optimizing the storage management of kiwifruit, the method comprising the following steps:

[0006] The quantity, ethylene concentration, and carbon dioxide concentration of kiwifruit in different zones within the storage warehouse were obtained, as the temperature varied in each zone.

[0007] Based on the increase in ethylene concentration and carbon dioxide concentration in adjacent time periods within each zone, and the temperature within each zone, the necessary transfer indicators for each zone in the current time period are obtained, and the zones to be transferred and the candidate zones for the zones to be transferred are determined, where the current time period is the last time period within the current time period; based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution, and necessary transfer indicators of the candidate areas, the suitability of each candidate zone to receive kiwifruit from the corresponding zone is evaluated;

[0008] Based on the number of kiwifruits that have been transferred to each candidate zone and the temperature difference between the zone where the transferred kiwifruits were located before being transferred and each candidate zone, the kiwifruit diversity factor of each candidate zone is obtained.

[0009] Based on the fitness level and the kiwifruit diversity factors, target zones for kiwifruit are determined and then transferred and stored.

[0010] Preferably, the step of obtaining the necessary transfer indicators for each zone in the current time period based on the increase in ethylene concentration, the increase in carbon dioxide concentration, and the temperature within each zone in the current time period includes:

[0011] For any partition:

[0012] The period following the one in which the increase in ethylene concentration in any adjacent period of the current time zone reaches its maximum value is designated as the first target period; the period following the one in which the increase in carbon dioxide concentration in any adjacent period of the current time zone reaches its maximum value is designated as the second target period.

[0013] Based on the time interval between the first target time period and the second target time period, the time interval between the first target time period and the candidate time period, the time interval between the second target time period and the candidate time period, and the temperature within any of the partitions, the temperature maturity limit value of any partition in the candidate time period is obtained; the candidate time period is any time period within the current time period.

[0014] Based on the increase in ethylene concentration and carbon dioxide concentration in adjacent periods of any given partition within the current time period, and the temperature maturity limit values ​​for all periods within the current time period, the necessary transfer indicators for any given partition in the current time period are obtained.

[0015] Preferably, obtaining the necessary transfer indicators for any given partition in the current time period based on the increase in ethylene concentration and carbon dioxide concentration in adjacent time periods of any partition within the current time period, and the temperature maturity limit values ​​for all time periods within the current time period, includes:

[0016] The product of the normalized value of the increase in ethylene concentration and the normalized value of the increase in carbon dioxide concentration in any two adjacent time periods of any partition within the current time period is recorded as the first product of any two adjacent time periods of any partition within the current time period.

[0017] Based on the temperature maturity limit values ​​for all time periods within the current time period and the first product, the necessary transfer index for any partition in the current time period is obtained. The temperature maturity limit values ​​are negatively correlated with the necessary transfer index, and the first product is positively correlated with the necessary transfer index.

[0018] Preferably, determining the partition to be transferred and the candidate partitions of the partition to be transferred includes:

[0019] For any partition, if the necessary transfer index of any partition in the current time period is greater than the preset necessary threshold, then any partition is designated as a partition to be transferred.

[0020] For any partition to be transferred, the partition with a temperature lower than that partition and an available inventory greater than or equal to the number of kiwis in that partition is selected as the candidate partition for that partition.

[0021] Preferably, the evaluation of the suitability of each candidate zone for receiving kiwifruit from the corresponding zone, based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution, and necessary transfer indicators of the candidate areas, includes:

[0022] For any partition to be transferred:

[0023] Sort all partitions in descending order of temperature to obtain the partition sequence;

[0024] Based on the necessary transfer indicators of any partition to be transferred, the difference between the quantity of kiwifruit in any partition to be transferred and the available inventory of each candidate area, and the difference in the order of any partition to be transferred and each candidate partition in the partition sequence, the suitability of each candidate partition of any partition to be transferred to receive kiwifruit in any partition to be transferred is obtained.

[0025] Preferably, each candidate partition of any partition to be transferred receives the adaptation degree of the kiwifruit within that partition, including:

[0026] The product of the normalized value of the difference between the quantity of kiwifruit in any partition to be transferred and the available inventory in each of the candidate areas and the normalized value of the difference between the order of any partition to be transferred and each of the candidate partitions in the partition sequence is denoted as the first feature value.

[0027] Based on the necessary transfer index of any partition to be transferred and the first feature value, the suitability of each candidate partition of any partition to be transferred to receive kiwifruit in any partition to be transferred is obtained. The necessary transfer index is positively correlated with the suitability, and the first feature value is negatively correlated with the suitability.

[0028] Preferably, the step of obtaining the kiwifruit diversity factor for each candidate zone based on the number of kiwifruits already received and transferred in each candidate zone, and the temperature difference between the zone where the kiwifruits were located before being transferred and each candidate zone, includes:

[0029] For any candidate partition:

[0030] The temperature difference between the kiwifruit that has been transferred to any candidate zone in the current time period and the candidate zone before the transfer is recorded as the first temperature difference; the number of kiwifruit in each zone before the transfer of the kiwifruit that has been transferred to any candidate zone in the current time period is recorded as the corresponding second characteristic value.

[0031] Based on all the first temperature differences and all the second characteristic values, the kiwi fruit diversity factor for any of the candidate partitions is obtained.

[0032] Preferably, obtaining the kiwi fruit diversity factor for any candidate partition based on all the first temperature differences and all the second feature values ​​includes:

[0033] The product of the first temperature difference and the second characteristic value between the kiwifruit that has been transferred to any candidate partition before it was transferred is denoted as the second product between the kiwifruit that has been transferred to any candidate partition before it was transferred.

[0034] The average of the second products of all the partitions in which the kiwifruit in any candidate partition that has received the transfer was located before the transfer is taken as the kiwifruit diversity factor of the candidate partition.

[0035] Preferably, the target zoning of kiwifruit is determined by combining the fitness and the kiwifruit diversity factors, including:

[0036] For any partition to be transferred:

[0037] Based on the fit of each candidate partition of any partition to be transferred to the kiwifruit in the partition to be transferred and the kiwifruit diversity factor of each candidate partition of any partition to be transferred, the acceptance index of each candidate partition of any partition to be transferred is obtained. The fit is positively correlated with the acceptance index, and the kiwifruit diversity factor is negatively correlated with the kiwifruit diversity factor.

[0038] The partition corresponding to the maximum value of the acceptance index among all the candidate partitions of any partition to be transferred is determined as the target partition for kiwi fruit within any partition to be transferred.

[0039] Secondly, the present invention provides a kiwifruit storage optimization management system, which is used to perform the above-described method, and the system includes:

[0040] The data acquisition module is used to obtain the quantity of kiwifruit, ethylene concentration, and carbon dioxide concentration in different zones within the storage warehouse, where the temperature varies in each zone.

[0041] The suitability determination module is used to obtain the necessary transfer indicators for each zone in the current time period based on the increase in ethylene concentration, increase in carbon dioxide concentration and temperature in adjacent time periods within each zone, and to determine the zones to be transferred and the candidate zones for the zones to be transferred, where the current time period is the last time period within the current time period; and to evaluate the suitability of each candidate zone to receive kiwifruit from the corresponding zone based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution and necessary transfer indicators of the candidate areas.

[0042] The diversity evaluation module is used to obtain the kiwi fruit diversity factor of each candidate zone based on the number of kiwi fruit that have been transferred to each candidate zone and the temperature difference between the candidate zones and the zone where the transferred kiwi fruit was located before being transferred.

[0043] The transfer module is used to combine the fitness and the kiwi fruit diversity factors to determine the target zoning of kiwi fruit and to transfer and store it.

[0044] The present invention has at least the following beneficial effects:

[0045] This invention first analyzes the relationship between kiwifruit respiration intensity and ethylene release in each zone of a storage warehouse based on the increases in ethylene and carbon dioxide concentrations and the temperature within each zone during the current time period. This determines the cumulative ripening progress of kiwifruit stored in each zone during each time period. Furthermore, it assesses the inhibitory effect of temperature on the ripening of kiwifruit stored in different zones, evaluating whether kiwifruit in each zone needs to be transferred to a low-temperature zone for storage. Necessary transfer indicators are obtained, and the zones to be transferred and their corresponding candidate zones are identified. Then, combining the quantity of kiwifruit in each zone to be transferred with the available inventory, temperature distribution, and necessary transfer indicators of the candidate zones, the preservation effect of transferring kiwifruit from each candidate zone to its corresponding candidate zone is analyzed, yielding the corresponding results for each candidate zone. The suitability of kiwifruit within the designated zones quantifies the impact of transferring kiwifruit stored in different zones to their respective candidate zones on the storage duration of the original kiwifruit in the candidate zones. Next, based on the quantity of kiwifruit already received in each candidate zone and the temperature difference between the zone where the received kiwifruit was located before transfer and each candidate zone, a kiwifruit diversity factor for each candidate zone is obtained. This kiwifruit diversity factor reflects the difference in ripening progress when different batches of kiwifruit are received in the candidate zones. Finally, the suitability is corrected using the kiwifruit diversity factor, the target zones for kiwifruit are determined, and the transfer and storage are carried out, optimizing the kiwifruit storage strategy. The method provided by this invention can adjust the storage temperature in a timely manner according to the real-time status of kiwifruit within the warehouse zones, extending the storage duration of kiwifruit while saving energy. Attached Figure Description

[0046] To more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A flowchart illustrating an optimized storage management method for kiwifruit provided in an embodiment of the present invention;

[0048] Figure 2 This is a structural block diagram of a kiwifruit storage optimization management system provided in an embodiment of the present invention. Detailed Implementation

[0049] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of a kiwifruit storage optimization management method and system proposed according to the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0051] The following description, in conjunction with the accompanying drawings, details the specific scheme of the kiwifruit storage optimization management method and system provided by this invention.

[0052] Example of an optimized storage management method for kiwifruit:

[0053] This embodiment proposes an optimized management method for kiwifruit storage, such as... Figure 1 As shown, the kiwifruit storage optimization management method of this embodiment includes the following steps:

[0054] Step S1: Obtain the quantity of kiwifruit, ethylene concentration, and carbon dioxide concentration in different zones within the storage warehouse. The temperature varies in each zone.

[0055] The warehouse for storing the same variety of kiwifruit is evenly divided into multiple zones, each equipped with a refrigeration unit. In this embodiment, the temperature in all zones is sequentially controlled at 20℃, 18℃, 16℃, 14℃, 12℃, 10℃, 8℃, 6℃, 4℃, 2℃, and 0℃, with one zone corresponding to one temperature. In specific applications, the implementer will set the temperature of each zone according to specific circumstances. Simultaneously, carbon dioxide concentration sensors and ethylene concentration sensors are installed at appropriate locations within each zone. The carbon dioxide concentration sensor monitors the carbon dioxide concentration within the zone, and the ethylene concentration sensor monitors the ethylene concentration within the zone. The carbon dioxide and ethylene concentration sensors record the monitored data every hour and upload the data to a data cloud monitoring platform for subsequent data analysis. In specific applications, the implementer can set the data acquisition frequency of the sensors according to specific circumstances.

[0056] The carbon dioxide concentration sensor and ethylene concentration sensor described above are used to collect the hourly ethylene and carbon dioxide concentrations of each zone within the current time period. The current time period is the set of all historical moments with a time interval less than or equal to a preset duration, plus the current moment. In this embodiment, the preset duration is one week; however, the implementer can set it according to specific circumstances. Then, a day is taken as a time period, and the current time period is divided into multiple time periods. The last time period within the current time period is recorded as the current time period. For any given time period: the average of all ethylene concentrations collected within that time period is taken as the ethylene concentration of that time period, and the average of all carbon dioxide concentrations collected within that time period is taken as the carbon dioxide concentration of that time period. Simultaneously, the quantity of kiwifruit in each zone is obtained. It should be noted that in this embodiment, the quantity of kiwifruit in each zone is counted at a fixed time each day.

[0057] Thus, this embodiment has obtained the quantity of kiwifruit, ethylene concentration, and carbon dioxide concentration in each partition of each time period within the current time period.

[0058] Step S2: Based on the increase in ethylene concentration and carbon dioxide concentration in adjacent time periods within each zone and the temperature within the zone, obtain the necessary transfer indicators for each zone in the current time period, and determine the zones to be transferred and the candidate zones for the zones to be transferred, where the current time period is the last time period within the current time period; based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution, and necessary transfer indicators of the candidate areas, evaluate the suitability of each candidate zone to receive the kiwifruit in the corresponding zone.

[0059] Kiwifruit is harvested when it is relatively firm (with a high protopectin content) and sent to a warehouse for cold storage. To save on the cost of maintaining cold storage, kiwifruit is first sent to a zone with a temperature of 20°C. When 20°C can no longer effectively inhibit the ripening process of kiwifruit, the corresponding batch of kiwifruit is sent to a subsequent zone with a lower temperature for storage. In order to achieve the above-mentioned optimized management process for kiwifruit storage, it is first necessary to determine the degree to which the temperature of each zone restricts the ripening speed of the same batch of kiwifruit within a single day.

[0060] During the ripening process, kiwifruit continuously produces ethylene, which promotes stronger respiration, thus accelerating ripening. Once the respiration reaches its peak, the rate of pectin hydrolysis accelerates, the fruit softens, the pedicel falls off, and the fruit becomes diseased and rots.

[0061] Next, this embodiment will analyze each partition separately to determine whether the kiwifruit in each partition needs to be transferred in the current time period, and filter out the partitions that need to be transferred.

[0062] This embodiment uses one partition as an example for illustration. The method provided in this embodiment can be used to process other partitions.

[0063] Specifically, for any partition:

[0064] The greater the increase in both ethylene and carbon dioxide concentrations in adjacent time periods, the faster the kiwifruit ripens within the zone. The period immediately following the point where the ethylene concentration increase reaches its maximum in the current time period is designated as the first target period; the period immediately following the point where the carbon dioxide concentration increase reaches its maximum in the current time period is designated as the second target period. The ethylene concentration increase in adjacent time periods is the difference between the ethylene concentration in the second period and the ethylene concentration in the first period; similarly, the carbon dioxide increase in adjacent time periods is the difference between the carbon dioxide concentration in the second period and the carbon dioxide concentration in the first period.

[0065] Taking one time period as an example, the method provided in this embodiment can be used to process other time periods. Specifically, any time period within the current time period is recorded as a candidate time period. Based on the time interval between the first target time period and the second target time period, the time interval between the first target time period and the candidate time period, the time interval between the second target time period and the candidate time period, and the temperature within the zone, the temperature maturity limit value of the zone in the candidate time period is obtained.

[0066] In this embodiment, a specific formula for calculating the temperature maturity limit is given. The temperature maturity limit for the i-th partition in the j-th time period can be expressed as:

[0067]

[0068] in, This represents the temperature maturity limit value for the i-th partition during the j-th time period. This indicates the time interval between the first target time period and the second target time period. This represents the time interval between the first target time period and the j-th time period. This represents the time interval between the second target time period and the j-th time period. This represents the temperature of the i-th partition. This represents an exponential function with the natural constant as its base. This indicates the preset first adjustment parameter.

[0069] In this embodiment, a preset first adjustment parameter is introduced into the calculation formula of the temperature maturity limit value to prevent the denominator from being 0. In this embodiment, the preset first adjustment parameter is 0.01. In specific applications, the implementer can set it according to the specific situation. The larger the value, the faster the kiwifruit is in the ripening stage when stored in the i-th partition until the j-th time period; the higher the temperature in the i-th partition, the more it promotes the ripening of the kiwifruit. The larger the temperature ripening limit value of the i-th partition at the j-th time period, the stronger the inhibitory effect of the corresponding partition temperature on the ripening of the kiwifruit when stored in the i-th partition until the j-th time period.

[0070] To facilitate the management of kiwifruit storage, existing methods typically maintain a uniform temperature of 0°C across all zones. However, this approach consumes significant energy from the kiwifruit temperature control equipment. In reality, not all kiwifruit require a 0°C environment for extended storage. By setting different refrigeration temperatures for different zones within the warehouse, and arranging for the transfer and storage of kiwifruit within different zones according to the ripening progress of the same batch, the management plan for kiwifruit storage can be optimized, thereby achieving an overall reduction in energy consumption.

[0071] For the same batch of kiwifruit, the longer the storage time in the warehouse, the more the kiwifruit will ripen. Although the ripening process will be inhibited by low temperature, the ripening progress will still accumulate as the storage time in the warehouse is extended. Therefore, it is necessary to measure this accumulation.

[0072] Specifically, for any given partition, the product of the normalized increase in ethylene concentration and the normalized increase in carbon dioxide concentration for every two adjacent time periods within that partition is recorded as the first product for every two adjacent time periods within that partition. For this partition, there exists a first product for every two adjacent time periods within the current time period. This first product is used to measure the daily ripening progress of kiwifruit within a single time period; the larger the value, the faster the ripening progress of the kiwifruit within the corresponding time period. In this embodiment, the normalization of the increase in ethylene concentration and the increase in carbon dioxide concentration is performed using the maximum-minimum normalization method. In specific applications, implementers can also use other existing data normalization methods. The maximum-minimum normalization method is existing technology and will not be elaborated further here.

[0073] Based on the temperature maturity limit values ​​of all time periods within the current time period and the first product, the necessary indicators for the transfer of this partition in the current time period are obtained. The temperature maturity limit values ​​are negatively correlated with the necessary indicators for transfer, and the first product is positively correlated with the necessary indicators for transfer.

[0074] As a concrete example, the specific calculation formula for the necessary transfer index is given. The necessary transfer index for the i-th partition in the current time period can be expressed as:

[0075]

[0076] in, This represents the necessary indicators for the transfer of the i-th partition in the current time period. This indicates the number of time periods within the current time period. This represents the first product between the (n-1)th time period and the nth time period in the i-th partition within the current time period. This represents the temperature maturity limit value for the nth time period within the current time period. This represents the normalization function.

[0077] The greater the daily ripening progress of the i-th partition and the smaller the temperature-dependent ripening limitation of the i-th partition on a single day, the greater the degree to which the ripening of kiwifruit in the i-th partition is not inhibited by low temperature on a single day, reflecting that the kiwifruit in the i-th partition is closer to the fully ripe stage on a single day. The higher the accumulated ripening progress of the kiwifruit in the i-th partition before the current time period, the stronger the energy to resist the inhibition of low temperature in the partition, indicating that when the kiwifruit is stored in the i-th partition until the current time period, the more necessary it is to transfer to a partition with a lower temperature to strengthen the inhibition of ripening of the kiwifruit, that is, the greater the transfer necessity index of the i-th partition in the current time period.

[0078] When kiwifruit is stored in one zone, if the low-temperature environment in that zone cannot effectively slow down the ripening process, then it is necessary to consider transferring the kiwifruit from that zone to another zone with a lower temperature for storage. Since other zones usually store other batches of kiwifruit, it is necessary to ensure that the transfer of the kiwifruit from that zone to another zone with a lower temperature does not significantly disrupt the ripening process of the kiwifruit originally stored in those zones, thereby greatly shortening the ripening time of the kiwifruit in those other zones.

[0079] For any partition, if the necessary transfer index for that partition in the current time period is greater than a preset necessary threshold, then that partition is designated as a partition to be transferred. In this embodiment, the preset necessary threshold is 0.75; in specific applications, the implementer can set it according to the specific circumstances. For any partition to be transferred, partitions with a temperature lower than that partition and an available inventory greater than or equal to the number of kiwifruits in that partition are designated as candidate partitions for that partition. Using the above method, each partition to be transferred and each candidate partition for that partition can be selected.

[0080] Then, sort all partitions according to their temperatures from highest to lowest, and record the resulting sequence as the partition sequence.

[0081] The lower the temperature maintained by the refrigeration unit, the more energy it consumes. To conserve energy as much as possible, when transferring kiwifruit from the i-th partition to other low-temperature areas, the partitions ranked higher in temperature have a higher priority than those ranked lower. In summary, within the kiwifruit transfer period of the i-th partition, for any given partition, the less energy it consumes to maintain the low temperature, the stronger its capacity to receive the total amount of stored kiwifruit, and the greater the distance between the kiwifruit stored in that partition and full maturity. This indicates that transferring the kiwifruit from the corresponding partition to that partition has a lower impact on the storage time of the original kiwifruit in that partition, reflecting that the kiwifruit in that partition is more suitable for transfer to that partition for storage.

[0082] For any partition to be transferred:

[0083] The product of the normalized value of the difference between the quantity of kiwifruit in the partition to be transferred and the available inventory of each candidate area, and the normalized value of the difference between the order of the partition to be transferred and each candidate partition in the partition sequence, is denoted as the first characteristic value.

[0084] Based on the necessary transfer indicators of the partition to be transferred and the first feature value, the suitability of each candidate partition of the partition to be transferred to receive kiwifruit in the partition to be transferred is obtained. The necessary transfer indicators are positively correlated with the suitability, and the first feature value is negatively correlated with the suitability.

[0085] In this embodiment, a specific formula for calculating the fit is given. The fit of the t-th candidate region of the v-th partition to be transferred can be expressed as:

[0086]

[0087] in, This represents the fit of the t-th candidate region in the v-th partition to receive kiwifruit from the v-th partition. This represents the necessary indicators for transferring the v-th partition to be transferred. This represents the number of kiwis in the v-th partition to be transferred. This represents the available inventory in the t-th candidate area of ​​the v-th partition to be transferred. This represents the sequence number of the v-th partition to be transferred within the partition sequence. This represents the index of the t-th candidate region in the partition sequence of the v-th partition to be transferred. This indicates the preset first adjustment parameter. This represents the normalization function.

[0088] In this embodiment, a preset first adjustment parameter is introduced into the formula for calculating the fit in order to prevent the denominator from being 0. In this embodiment, the preset first adjustment parameter is 0.01. In specific applications, the implementer can set it according to the specific situation.

[0089] This value represents the difference between the quantity of kiwifruit in the v-th partition to be transferred and the available inventory in the t-th candidate area. The larger the value, the greater the difference between the two. This value represents the difference in order between the v-th transfer partition and its t-th candidate partition in the partition sequence. The larger the value, the greater the difference in order, and the more energy the v-th transfer partition saves by transferring its kiwifruit to the t-th candidate partition. The smaller the difference between the quantity of kiwifruit in the v-th transfer partition and the available inventory in its t-th candidate partition, and the smaller the difference in order between the v-th transfer partition and its t-th candidate partition in the partition sequence, the more suitable the kiwifruit in the v-th transfer partition is for transfer to its t-th candidate partition. In other words, the greater the fit between the t-th candidate partition and the v-th transfer partition for receiving kiwifruit from the v-th transfer partition.

[0090] Using the above method, it is possible to obtain the suitability of each candidate region for receiving kiwifruit from its corresponding transfer partition.

[0091] Step S3: Based on the number of kiwifruits that have been transferred to each candidate zone and the temperature difference between the zone where the transferred kiwifruits were located before being transferred and each candidate zone, obtain the kiwifruit diversity factor for each candidate zone.

[0092] Step S2 analyzed the same batch of kiwifruit. However, in real-world scenarios, warehouses storing kiwifruit receive multiple batches, resulting in multiple batches of kiwifruit being stored in the same zone. These different batches of kiwifruit may have different cumulative ripening progress due to their different storage times and transfer times within the zone. To better determine the transfer zone for kiwifruit, it is necessary to analyze the ripening progress of these different batches of kiwifruit and further adjust the fit to better extend the storage time of kiwifruit while saving energy.

[0093] This embodiment will now use one candidate partition as an example for explanation. The method provided in this embodiment can be used to process other candidate partitions.

[0094] Specifically, for any candidate partition:

[0095] The temperature difference between the candidate zone and the zone in which the kiwifruit that has been transferred before being transferred was located is recorded as the first temperature difference; the number of kiwifruit in each zone in which the candidate zone has been transferred before being transferred is recorded as the corresponding second characteristic value. It should be noted that each zone in which the candidate zone has been transferred before being transferred has a corresponding first temperature difference and a second characteristic value.

[0096] The product of the first temperature difference and its second characteristic value for each of the previously transferred kiwifruit vineyards in the candidate partition is denoted as the second product of the previously transferred kiwifruit vineyards in the candidate partition before the transfer. Each previously transferred kiwifruit vineyard in the candidate partition has a corresponding second product. The average of the second products of all previously transferred kiwifruit vineyards in the candidate partition is taken as the kiwifruit diversity factor of the candidate partition.

[0097] In this embodiment, a specific formula for calculating the kiwi fruit diversity factor is given. The kiwi fruit diversity factor of the t-th candidate partition of the v-th candidate partition can be expressed as:

[0098]

[0099] in, This represents the kiwi fruit diversity factor of the t-th candidate partition in the v-th partition to be transferred. This indicates the number of partitions in which the t-th candidate partition of the v-th partition to be transferred was located before it was transferred. This indicates the position of the kiwifruit that the candidate partition has received for transfer in the current time period, before it was transferred. The number of kiwifruit in each partition, which is also the second characteristic value; This indicates the position of the kiwi fruit in the v-th partition to be transferred in the t-th partition before it was transferred, which has already received the transfer. Temperature of each zone This represents the temperature of the t-th candidate partition of the v-th partition to be transferred. This represents the normalization function.

[0100] This indicates the position of the t-th candidate partition of the v-th partition to be transferred in the current time period, and the position of the kiwifruit that has already received the transfer before being transferred. The temperature difference between the two zones, also known as the first temperature difference, is the largest value indicating a greater temperature difference between the two zones.

[0101] The greater the temperature difference between each candidate zone of the v-th candidate zone and the zone where the kiwifruit that has been transferred was located before being transferred, and the greater the number of kiwifruit in each zone where the candidate zone has been transferred before being transferred, the more varieties of kiwifruit batches received by the t-th candidate zone are. In other words, the greater the kiwifruit diversity factor of the t-th candidate zone of the v-th candidate zone, the more obvious the difference in ripening progress between different kiwifruit batches in the t-th candidate zone, and the more likely it is that some batches of kiwifruit reach full ripeness, but are not effectively detected in the whole zone.

[0102] Using the above method, the kiwi fruit diversity factor for each candidate partition of each partition to be transferred can be obtained.

[0103] Step S4: Combining the fitness level and the kiwifruit diversity factors, determine the target zoning of the kiwifruit and transfer and store it.

[0104] In this embodiment, the fit of each candidate partition to receive kiwifruit in the corresponding partition and the kiwifruit diversity factor of each candidate partition to be transferred have been determined in the above steps. Next, the fit and kiwifruit diversity factors will be combined to screen the transfer areas of kiwifruit in each candidate partition to be transferred.

[0105] Specifically, for any partition to be transferred:

[0106] Based on the fit of each candidate partition of the partition to be transferred to the kiwifruit within the partition to be transferred and the kiwifruit diversity factor of each candidate partition of the partition to be transferred, the acceptance index of each candidate partition of the partition to be transferred is obtained. The fit is positively correlated with the acceptance index, and the kiwifruit diversity factor is negatively correlated with the kiwifruit diversity factor.

[0107] As a specific implementation method, a detailed calculation method for the acceptance index is provided, as follows: For any candidate partition of the partition to be transferred, calculate the difference between the constant 1 and the kiwi fruit diversity factor of that candidate partition of the partition to be transferred. Multiply this difference by the fit of the candidate partition to receive kiwi fruit from the partition to be transferred, and use this product as the acceptance index of that candidate partition. By sampling this method, the acceptance index of each candidate partition of the partition to be transferred can be obtained. It should be noted that if a candidate partition does not receive any transferred kiwi fruit in the current time period, its kiwi fruit diversity factor is set to 0.

[0108] The higher the acceptance index, the more suitable the kiwifruit in the partition to be transferred is for transfer to the corresponding candidate partition. Therefore, in this embodiment, the candidate partition with the highest acceptance index among all candidate partitions of the partition to be transferred is determined as the target partition for the kiwifruit in the partition to be transferred, and the kiwifruit in the partition to be transferred is transferred to the target partition for storage.

[0109] Using the above method, kiwifruit from all partitions to be transferred can be transferred.

[0110] Thus, by using the method provided in this embodiment, the storage strategy within the same kiwifruit storage warehouse was adjusted in a timely manner, thereby extending the storage time of kiwifruit while saving energy.

[0111] This embodiment first analyzes the relationship between kiwifruit respiration intensity and ethylene release in each zone of the storage warehouse based on the increase in ethylene and carbon dioxide concentrations in adjacent time periods within the current time period, as well as the temperature within each zone. This determines the cumulative ripening progress of the kiwifruit stored in each zone during each time period. Furthermore, it assesses the inhibitory effect of temperature on the ripening of kiwifruit stored in different zones, evaluating whether kiwifruit in each zone needs to be transferred to a low-temperature zone for storage. Necessary transfer indicators are obtained, and the zones to be transferred and their corresponding candidate zones are identified. Then, considering the quantity of kiwifruit in each zone to be transferred, the available inventory in the candidate zones, temperature distribution, and necessary transfer indicators, the preservation effect of transferring kiwifruit from each candidate zone to its corresponding candidate zone is analyzed, yielding the results for each candidate zone receiving corresponding... The suitability of kiwifruit within the designated zones quantifies the impact of transferring kiwifruit stored in different zones to their respective candidate zones on the storage duration of the original kiwifruit in the candidate zones. Next, based on the quantity of kiwifruit already received in each candidate zone and the temperature difference between the zone where the received kiwifruit was located before transfer and each candidate zone, a kiwifruit diversity factor for each candidate zone is obtained. This kiwifruit diversity factor reflects the difference in ripening progress when different batches of kiwifruit are received in the candidate zones. Finally, the suitability is corrected using the kiwifruit diversity factor, the target zones for kiwifruit are determined, and the transfer and storage are carried out, optimizing the kiwifruit storage strategy. The method provided in this embodiment can adjust the storage temperature in a timely manner according to the real-time status of the kiwifruit in the warehouse zones, extending the storage duration of kiwifruit while saving energy.

[0112] An example of an optimized management system for kiwifruit storage:

[0113] See Figure 2 The diagram shows a structural block diagram of a kiwifruit storage optimization management system provided in an embodiment of the present invention. The system may include a data acquisition module, a fitness determination module, a diversity evaluation module, and a transfer module.

[0114] The data acquisition module is used to obtain the quantity of kiwifruit, ethylene concentration, and carbon dioxide concentration in different zones of the storage warehouse, where the temperature varies.

[0115] The suitability determination module is used to obtain the necessary transfer indicators for each zone in the current time period based on the increase in ethylene concentration, increase in carbon dioxide concentration and temperature in adjacent time periods within each zone, and to determine the zones to be transferred and the candidate zones for the zones to be transferred, where the current time period is the last time period within the current time period; and to evaluate the suitability of each candidate zone to receive kiwifruit from the corresponding zone based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution and necessary transfer indicators of the candidate areas.

[0116] The diversity evaluation module is used to obtain the kiwi fruit diversity factor of each candidate zone based on the number of kiwi fruit that have been transferred to each candidate zone and the temperature difference between the candidate zones and the zone where the transferred kiwi fruit was located before being transferred.

[0117] The transfer module is used to combine the fitness and the kiwi fruit diversity factors to determine the target zoning of kiwi fruit and to transfer and store it.

[0118] It should be understood that Figure 2 The structural block diagram and modules of the kiwifruit storage optimization management system shown can be implemented in various ways. For example, in some embodiments, the system and its modules can be implemented by hardware, software, or a combination of software and hardware. The hardware portion can be implemented using dedicated logic; the software portion can be stored in memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated hardware. Those skilled in the art will understand that the above-described methods and systems can be implemented using computer-executable instructions and / or included in processor control code, for example, on a carrier medium such as a disk, CD, or DVD-ROM, a programmable memory such as read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The systems and modules of this specification can be implemented not only by hardware circuits such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field-programmable gate arrays, programmable logic devices, etc., but also by software executed by various types of processors, or by a combination of the above-described hardware circuits and software (e.g., firmware).

[0119] For more details about the above modules, please refer to other parts of this manual; they will not be repeated here.

[0120] In other embodiments, a medium is also provided, the medium storing at least one computer-executable program, which, when executed by a computer, causes the computer to perform the steps in the kiwifruit storage optimization management method described above, the medium being a computer-readable storage medium.

[0121] The system and media provided are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding methods provided above, and will not be repeated here.

[0122] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for optimizing the storage and management of kiwifruit, characterized in that, The method includes the following steps: The quantity, ethylene concentration, and carbon dioxide concentration of kiwifruit in different zones within the storage warehouse were obtained, as the temperature varied in each zone. Based on the increase in ethylene concentration and carbon dioxide concentration in adjacent time periods within each zone, and the temperature within each zone, the necessary transfer indicators for each zone in the current time period are obtained, and the zones to be transferred and the candidate zones for the zones to be transferred are determined, where the current time period is the last time period within the current time period; based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution, and necessary transfer indicators of the candidate areas, the suitability of each candidate zone to receive kiwifruit from the corresponding zone is evaluated; Based on the number of kiwifruits that have been transferred to each candidate zone and the temperature difference between the zone where the transferred kiwifruits were located before being transferred and each candidate zone, the kiwifruit diversity factor of each candidate zone is obtained. Based on the fitness level and the kiwifruit diversity factors, the target zoning of kiwifruit is determined and then transferred and stored. The necessary indicators for the transfer of each partition in the current time period include: For any partition: The period following the one in which the increase in ethylene concentration in any adjacent period of the current time zone reaches its maximum value is designated as the first target period; the period following the one in which the increase in carbon dioxide concentration in any adjacent period of the current time zone reaches its maximum value is designated as the second target period. Based on the time interval between the first target time period and the second target time period, the time interval between the first target time period and the candidate time period, the time interval between the second target time period and the candidate time period, and the temperature within any of the partitions, the temperature maturity limit value of any partition in the candidate time period is obtained; the candidate time period is any time period within the current time period. The temperature maturity limit value for the i-th partition in the j-th time period is expressed as: in, This represents the temperature maturity limit value for the i-th partition during the j-th time period. This indicates the time interval between the first target time period and the second target time period. This represents the time interval between the first target time period and the j-th time period. This represents the time interval between the second target time period and the j-th time period. This represents the temperature of the i-th partition. This represents an exponential function with the natural constant as its base. This indicates the preset first adjustment parameter; The product of the normalized value of the increase in ethylene concentration and the normalized value of the increase in carbon dioxide concentration in any two adjacent time periods of any partition within the current time period is recorded as the first product of any two adjacent time periods of any partition within the current time period. Based on the temperature maturity limit values ​​of all time periods within the current time period and the first product, the necessary transfer index for any partition in the current time period is obtained. The temperature maturity limit value is negatively correlated with the necessary transfer index, and the first product is positively correlated with the necessary transfer index. The necessary indicators for the transfer of the i-th partition in the current time period are expressed as: in, This represents the necessary indicators for the transfer of the i-th partition in the current time period. This indicates the number of time periods within the current time period. This represents the first product between the (n-1)th time period and the nth time period in the i-th partition within the current time period. This represents the temperature maturity limit value for the nth time period within the current time period. Represents the normalization function; The evaluation of the suitability of each candidate partition for receiving kiwifruit within the corresponding partition includes: For any partition to be transferred: Sort all partitions in descending order of temperature to obtain the partition sequence; Based on the necessary transfer indicators of any partition to be transferred, the difference between the quantity of kiwifruit in any partition to be transferred and the available inventory of each candidate area, and the difference in the order of any partition to be transferred and each candidate partition in the partition sequence, the suitability of each candidate partition of any partition to be transferred to receive kiwifruit in any partition to be transferred is obtained. The fit of the t-th candidate region of the v-th partition to be transferred is represented as: in, This represents the fit of the t-th candidate region in the v-th partition to receive kiwifruit from the v-th partition. This represents the necessary indicators for transferring the v-th partition to be transferred. This represents the number of kiwis in the v-th partition to be transferred. This represents the available inventory in the t-th candidate area of ​​the v-th partition to be transferred. This represents the sequence number of the v-th partition to be transferred within the partition sequence. This represents the index of the t-th candidate region in the partition sequence of the v-th partition to be transferred. This indicates the preset first adjustment parameter. Represents the normalization function; The process of obtaining the kiwi fruit diversity factors for each candidate region includes: For any candidate partition: The temperature difference between the kiwifruit that has been transferred to any candidate zone in the current time period and the candidate zone before the transfer is recorded as the first temperature difference; the number of kiwifruit in each zone before the transfer of the kiwifruit that has been transferred to any candidate zone in the current time period is recorded as the corresponding second characteristic value. The product of the first temperature difference and the second characteristic value between the kiwifruit that has been transferred to any candidate partition before it was transferred is denoted as the second product between the kiwifruit that has been transferred to any candidate partition before it was transferred. The average of the second products of all the partitions in which the kiwifruit in any candidate partition that has been transferred was located before being transferred is taken as the kiwifruit diversity factor of any candidate partition. Combining the fitness level and the kiwifruit diversity factors, the target zoning for kiwifruit is determined, including: For any partition to be transferred: Based on the fit of each candidate partition of any partition to be transferred to the kiwifruit in the partition to be transferred and the kiwifruit diversity factor of each candidate partition of any partition to be transferred, the acceptance index of each candidate partition of any partition to be transferred is obtained. The fit is positively correlated with the acceptance index, and the kiwifruit diversity factor is negatively correlated with the kiwifruit diversity factor. The partition corresponding to the maximum value of the acceptance index among all the candidate partitions of any partition to be transferred is determined as the target partition for kiwi fruit within any partition to be transferred.

2. The method for optimizing the storage management of kiwifruit according to claim 1, characterized in that, The process of determining the partition to be transferred and the candidate partitions for the partition to be transferred includes: For any partition, if the necessary transfer index of any partition in the current time period is greater than the preset necessary threshold, then any partition is designated as a partition to be transferred. For any partition to be transferred, the partition with a temperature lower than that partition and an available inventory greater than or equal to the number of kiwis in that partition is selected as the candidate partition for that partition.

3. The method for optimizing the storage management of kiwifruit according to claim 1, characterized in that, Each candidate partition of any partition to be transferred receives the adaptation score of the kiwifruit within that partition, including: The product of the normalized value of the difference between the quantity of kiwifruit in any partition to be transferred and the available inventory in each of the candidate areas and the normalized value of the difference between the order of any partition to be transferred and each of the candidate partitions in the partition sequence is denoted as the first feature value. Based on the necessary transfer index of any partition to be transferred and the first feature value, the suitability of each candidate partition of any partition to be transferred to receive kiwifruit in any partition to be transferred is obtained. The necessary transfer index is positively correlated with the suitability, and the first feature value is negatively correlated with the suitability.

4. A kiwifruit storage optimization management system, the system being used to implement the method of claim 1, characterized in that, The system includes: The data acquisition module is used to obtain the quantity of kiwifruit, ethylene concentration, and carbon dioxide concentration in different zones within the storage warehouse, where the temperature varies in each zone. The suitability determination module is used to obtain the necessary transfer indicators for each zone in the current time period based on the increase in ethylene concentration, increase in carbon dioxide concentration and temperature in adjacent time periods within each zone, and to determine the zones to be transferred and the candidate zones for the zones to be transferred, where the current time period is the last time period within the current time period; and to evaluate the suitability of each candidate zone to receive kiwifruit from the corresponding zone based on the quantity of kiwifruit in each zone to be transferred and the available inventory, temperature distribution and necessary transfer indicators of the candidate areas. The diversity evaluation module is used to obtain the kiwi fruit diversity factor of each candidate zone based on the number of kiwi fruit that have been transferred to each candidate zone and the temperature difference between the candidate zones and the zone where the transferred kiwi fruit was located before being transferred. The transfer module is used to combine the fitness and the kiwi fruit diversity factors to determine the target zoning of kiwi fruit and to transfer and store it.

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