Pork cold chain fresh-keeping control system and storage device

Abstract

The invention relates to the technical field of cold-chain logistics, in particular to a pork cold-chain fresh-keeping control system and a storage device, and the control system comprises a detection unit, a fresh-keeping analysis unit and a cold-chain transfer analysis unit. The fresh-keeping analysis unit is used for determining the weight loss degree of the pork and the temperature uniformity and humidity uniformity of the placing area at a single time point, determining a temperature and humidity abnormal area and an abnormal index at the single time point, and a fresh-keeping index of the pork according to the temperature data and the humidity data, and determining an adjustment mode of the cold-chain fresh-keeping storage device. And the cold chain transfer analysis unit is used for constructing a freezing evaluation model of the pork so as to adjust the placing area and the placing transfer time of the pork. The storage device comprises a vehicle body and a refrigeration box body, and the refrigeration box body comprises an arc-shaped curve sliding rail, a temperature and humidity adjusting assembly, a distance adjusting assembly, a detection assembly, an air supply assembly and a power supply assembly. The reliability of the whole cold-chain logistics transportation process of pork is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cold chain logistics, and in particular to a pork cold chain preservation control system and a storage device. Background Art

[0002] The characteristics of meat products determine that they need to be kept at low temperatures throughout the cold chain transportation process to prevent deterioration, contamination and damage. Professional cold chain logistics refrigeration transportation, storage equipment and technology can effectively prevent meat products from deteriorating and contaminating, ensuring their freshness and taste.

[0003] Chinese Patent Publication No.: CN107783520B, discloses a mutton cold chain transportation control system and method, the control system includes a general control center and a control module that are communicatively connected, as well as a sensor module and an execution module that are respectively connected to the control module, and the control module, the sensor module and the execution module are all arranged on the mutton cold chain transportation equipment; the sensor module is used to detect the operating parameters of the mutton cold chain transportation equipment, and send the operating parameters to the control module; the control module is used to send control instructions to the execution module according to the received operating parameters, and send the operating parameters to the general control center; the execution module is used to perform corresponding control on the mutton cold chain transportation equipment according to the received control instructions.

[0004] It can be seen that although the above technical solution can automatically and intelligently control the mutton cold chain transportation equipment and effectively improve the reliability of the entire mutton cold chain logistics transportation process, there are still the following problems: it does not consider the pork hanging spacing during pork cold chain transportation, the impact of water evaporation on pork weight and overall pork quality, and the impact of pork freezing time for too long on pork quality. Summary of the invention

[0005] To this end, the present invention provides a pork cold chain preservation control system and a storage device to overcome the problems in the prior art of pork cold chain preservation control systems, which often ignore the effects of pork hanging spacing, water evaporation on pork weight and overall pork quality, and fail to consider the effects of pork freezing time for too long on pork quality.

[0006] To achieve the above objectives, on the one hand, the present invention provides a pork cold chain preservation control system, comprising:

[0007] A detection unit, which is used to detect temperature data, humidity data, real-time weight data of pork, initial weight data, storage time of each pork, current time, transportation route and real-time position of the fresh-keeping transportation device at several locations in the cold chain fresh-keeping storage space at several time points;

[0008] A fresh-keeping analysis unit connected to the detection unit is used to determine the weight loss degree of pork in a single placement area according to the initial weight data and real-time weight data of the pork at a single time point, determine the temperature and humidity abnormal area in the single placement area according to the temperature data and humidity data, and determine the abnormal index according to the temperature and humidity abnormal area, determine the fresh-keeping index according to the weight loss degree, temperature uniformity, humidity uniformity, and abnormal index, and determine the adjustment method of the cold chain fresh-keeping storage device;

[0009] a cold chain transfer analysis unit connected to the detection unit, for determining a freezing evaluation model for pork according to the storage time, current time, transportation distance, real-time location, and target freezing temperatures corresponding to each placement area, evaluating and analyzing the pork in the cold chain fresh-keeping storage space according to the freezing evaluation model, and adjusting the pork mobile placement area and placement / transfer time according to the analysis result, wherein the placement area includes a pre-cooling area, a freezing area, and a heat preservation area;

[0010] The adjustment method includes:

[0011] The preservation analysis unit determines a first adjustment method for the temperature and humidity in the cold chain preservation storage device according to the abnormal temperature and humidity area, temperature uniformity, and humidity uniformity;

[0012] Determining a second adjustment method for the initial hanging spacing of pork in the abnormal temperature and humidity area according to a number of initial hanging spacings of pork and temperature and humidity influencing factors;

[0013] Determining a third adjustment method for the temperature and humidity in the cold chain fresh-keeping storage device according to the comparison result of the fresh-keeping index and the preset fresh-keeping index, the temperature uniformity, and the humidity uniformity;

[0014] An execution unit is connected to the preservation analysis unit and is used to adjust the cold chain preservation storage device according to the adjustment method.

[0015] Furthermore, it includes: the preservation analysis unit determines the single weight loss rate of each piece of pork at a single time point based on the real-time weight data and the initial weight data, determines the comprehensive weight loss rate of the pork in a single placement area at a single time point based on the single weight loss rate, and determines the degree of weight loss in a single placement area at a single time point based on the comprehensive weight loss rate and the initial weight data.

[0016] Furthermore, it includes: the freshness-keeping analysis unit determines the corresponding temperature uniformity in a single placement area according to the temperature data at a single time point, and also determines the corresponding humidity uniformity according to the humidity data at a single time point.

[0017] Furthermore, it includes: the freshness-keeping analysis unit determines the temperature abnormal area according to the temperature uniformity and temperature data in a single placement area at a single time point, determines the humidity abnormal area according to the humidity uniformity and humidity data, and determines the temperature and humidity abnormal area together according to the temperature abnormal area and the humidity abnormal area.

[0018] Furthermore, the freshness-keeping analysis unit determines an abnormality index according to the total number of abnormalities in the temperature and humidity abnormal area at a single time point;

[0019] The abnormality level is also determined according to the weight loss degree and the abnormality index, the adjustment factor is determined according to the abnormality level, and the freshness index is determined according to the adjustment factor, temperature uniformity and humidity uniformity.

[0020] Further, the preservation analysis unit determines the temperature difference of the temperature and humidity abnormal area according to the corresponding temperature data and temperature uniformity in the temperature and humidity abnormal area, determines the humidity difference of the temperature and humidity abnormal area according to the corresponding humidity data and humidity uniformity, determines the first adjustment method according to the temperature difference and humidity difference, and determines the second adjustment method according to the initial hanging spacing and the temperature and humidity influencing factors, wherein,

[0021] Determine a temperature adjustment amount and / or a humidity adjustment amount according to the temperature difference and the humidity difference;

[0022] The spacing adjustment amount for the hanging spacing of pork in the area with abnormal temperature and humidity is determined based on the initial hanging spacing and the temperature and humidity influencing factors.

[0023] Furthermore, when the freshness-keeping index is less than a preset freshness-keeping index, the freshness-keeping analysis unit determines a third adjustment method according to a comparison result between the temperature uniformity and a preset first uniformity and a comparison result between the humidity uniformity and a preset second uniformity, wherein:

[0024] If the humidity uniformity is less than the preset first uniformity and / or the temperature uniformity is greater than the preset second uniformity, the air supply speed in the cold chain preservation storage device is adjusted.

[0025] Furthermore, the cold chain transfer analysis unit determines the placement time of each piece of pork in the cold chain preservation storage space according to the storage time and current time of each piece of pork, and determines the corresponding real-time transportation distance according to the transportation route and current position corresponding to each piece of pork, and also determines the freezing evaluation model of the pork according to the placement time, real-time transportation distance and the target freezing temperature corresponding to each placement area.

[0026] Furthermore, the cold chain transfer analysis unit obtains the freezing degree of the pork in each placement area according to the freezing evaluation model, and adjusts the placement area and placement / transfer time of each pork according to the freezing degree, wherein:

[0027] If the freezing degree of the pork in the pre-cooling area meets the preset fresh-keeping range, the pork is transferred to the freezing area for freezing at the first transfer time, and the placement time of the pork is determined according to the current freezing degree of the pork and the target freezing temperature corresponding to the freezing area;

[0028] If the freezing degree of the pork in the freezing zone does not meet the preset fresh-keeping range, the pork will be transferred to the warm-keeping zone at a second transfer time according to the freezing degree trend, or the pork will be placed in the pre-cooling zone for further freezing.

[0029] On the other hand, the present invention provides a pork cold chain preservation storage device using a pork cold chain preservation control system, comprising: a vehicle body and a refrigerated box body, wherein the refrigerated box body is fixedly connected to the vehicle body, wherein:

[0030] The refrigeration box comprises:

[0031] The storage area consists of three separate cold chain areas: pre-cooling area, freezing area, and insulation area;

[0032] An arc-shaped curved slide rail, which is arranged on the top of the refrigerating box body, and a plurality of hooks for hanging pork are arranged on the side of the arc-shaped curved slide rail away from the top of the refrigerating box body, a plurality of sliders arranged on both sides of the hooks for driving the hooks to slide on the arc-shaped curved slide rail, and a plurality of fixing parts arranged on both sides of the sliders for fixing the sliders;

[0033] The spacing adjustment component is connected to the slider and is used to move the slider and adjust the position of the slider.

[0034] A detection component is arranged at several positions inside the refrigerated box body, and is used to detect temperature data, humidity data of several areas of the cold chain fresh-keeping storage device at several time points, and real-time weight data and initial weight data of pork in several areas, and is also used to monitor the placement distance between several hooks, and detect the storage time of each pork, the current time, the transportation route and the real-time position of the fresh-keeping transportation device;

[0035] An air supply component, which is arranged on the top or side of the refrigerated box body and is used to supply air to the inside of the refrigerated box body, wherein the air supply component is provided with a refrigerator for supplying air, a wind speed regulator for adjusting the wind speed of the air supply, and an air supply direction controller for changing the direction of the air supply;

[0036] a control component, which is arranged inside the refrigerated box, and is used to adjust the temperature and humidity of the cold chain fresh-keeping storage device according to the first adjustment method, and to adjust the spacing of the plurality of sliders in the temperature and humidity abnormal area according to the second adjustment method, and to adjust the air supply speed according to the third adjustment method, and to move the pork to the corresponding pre-cooling area, freezing area and insulation area according to the freezing evaluation model result;

[0037] The power supply component provides power support for the arc-shaped curved slide rail, the detection component, the control component, the spacing adjustment component and the air supply component.

[0038] Compared with the prior art, the beneficial effect of the present invention is that the present invention comprehensively considers the influence of multiple key factors on the cold chain preservation of pork, not only focusing on the adjustment of temperature and humidity parameters, but also innovatively introducing the weight of pork and the spacing of pork hanging during the cold chain transportation of pork as the basis for adjustment, effectively discovering the influence of water evaporation on the quality of pork, and avoiding the problems of reduced taste and excessive local temperature of pork caused by placing too close. At the same time, the placement area and placement time of pork are further adjusted, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0039] Furthermore, at a single time point, the preservation analysis unit of the present invention determines the single weight loss rate and the comprehensive weight loss rate of each piece of pork based on the real-time weight data of the pork during the cold chain transportation and the initial weight data before loading, and determines the degree of weight loss of the pork during the cold chain transportation, and effectively discovers the impact of water evaporation on the weight of pork, thereby further improving the preservation effect of pork during the cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire pork cold chain logistics transportation process.

[0040] Furthermore, at a single time point, the present invention determines the temperature uniformity and humidity uniformity corresponding to a single placement area based on the temperature data and humidity data, takes into account the impact of the fresh-keeping environment on the quality of pork, further improves the fresh-keeping effect of pork during cold chain transportation, improves the quality and safety of pork throughout the entire cold chain logistics transportation process, and improves the reliability of the entire cold chain logistics transportation process of pork.

[0041] Furthermore, the present invention determines the abnormal temperature and humidity areas in a single area according to the corresponding temperature uniformity and humidity uniformity in the placement area at a single time point, and further determines the abnormal temperature and humidity areas in several areas, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0042] Furthermore, the freshness-keeping analysis unit of the present invention determines the abnormality level according to the degree of weight loss and the abnormality index at a single time point, determines the adjustment factor according to the abnormality level, and determines the freshness-keeping index according to the adjustment factor, temperature uniformity and humidity uniformity, thereby further improving the freshness-keeping effect of pork during cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0043] Furthermore, the preservation analysis unit of the present invention determines the first adjustment method and the second adjustment method according to the corresponding temperature mean, humidity mean, temperature uniformity and humidity uniformity in the temperature and humidity abnormal area, and adjusts the temperature and humidity in the cold chain preservation device and the pork hanging spacing, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire pork cold chain logistics transportation process.

[0044] Furthermore, when the freshness-keeping index is less than a preset freshness-keeping index, the freshness-keeping analysis unit of the present invention determines a third adjustment method based on the comparison result of the temperature uniformity with the preset first uniformity and the comparison result of the humidity uniformity with the preset second uniformity, and adjusts the air supply speed and wind direction in the cold chain freshness-keeping storage device, thereby further improving the freshness-keeping effect of pork during the cold chain transportation process, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0045] Furthermore, the present invention constructs a freezing evaluation model to monitor the freezing state of pork in the cold chain preservation storage space in real time, and determines the placement time and transfer time in real time, to ensure that the pork is stored and transported under appropriate freezing conditions, to avoid waste and loss of pork due to insufficient or excessive freezing, to improve the preservation effect of pork during cold chain transportation, to improve the quality and safety of pork throughout the entire cold chain logistics transportation process, and to improve the reliability of the entire cold chain logistics transportation process of pork.

[0046] Furthermore, the present invention provides a pork cold chain preservation storage device, and arranges a storage area, an arc-shaped curved slide rail, a temperature and humidity adjustment component, a spacing adjustment component, a detection component, an air supply component and a power supply component in the refrigerated box body to adjust the cold chain transportation environment of pork, thereby further improving the preservation effect of pork during the cold chain transportation process, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a connection block diagram of the pork cold chain preservation control system according to an embodiment of the present invention;

[0048] Figure 2 A flow chart of determining the degree of weight loss at a single time point by a freshness-keeping analysis unit according to an embodiment of the present invention;

[0049] Figure 3 This is a flow chart of the freshness-keeping analysis unit according to an embodiment of the present invention determining an abnormal temperature and humidity area at a single time point;

[0050] Figure 4 This is a diagram showing the internal structure of the pork cold chain fresh-keeping storage device according to an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of an arc-shaped curved slide rail according to an embodiment of the present invention;

[0052] Figure 6 This is a bottom bottom view of the arc-shaped curved slide rail according to an embodiment of the present invention;

[0053] Figure 7 It is a top plan view of the arc-shaped curved slide rail according to an embodiment of the present invention;

[0054] In the figure: 1, refrigeration box body; 101, arc-shaped curved slide rail; 1011, hook; 1012, slider; 1013, fixing part; 102, spacing adjustment component; 103, refrigerator; 104, pre-cooling area; 105, freezing area; 106, insulation area. DETAILED DESCRIPTION

[0055] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0056] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0057] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0058] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] See also Figure 1 As shown, it is a connection block diagram of the pork cold chain preservation control system according to an embodiment of the present invention. Specifically, the present invention provides a pork cold chain preservation control system, including:

[0060] A detection unit, which is used to detect temperature data, humidity data, real-time weight data of pork, initial weight data, storage time of each pork, current time, transportation route and real-time position of the fresh-keeping transportation device at several locations in the cold chain fresh-keeping storage space at several time points;

[0061] A fresh-keeping analysis unit connected to the detection unit is used to determine the weight loss degree of pork in a single placement area according to the initial weight data and real-time weight data of the pork at a single time point, determine the temperature and humidity abnormal area in the single placement area according to the temperature data and humidity data, and determine the abnormal index according to the temperature and humidity abnormal area, determine the fresh-keeping index according to the weight loss degree, temperature uniformity, humidity uniformity, and abnormal index, and determine the adjustment method of the cold chain fresh-keeping storage device;

[0062] a cold chain transfer analysis unit connected to the detection unit, for determining a freezing evaluation model for pork according to the storage time, current time, transportation distance, real-time location, and target freezing temperatures corresponding to each placement area, evaluating and analyzing the pork in the cold chain fresh-keeping storage space according to the freezing evaluation model, and adjusting the pork mobile placement area and placement / transfer time according to the analysis result, wherein the placement area includes a pre-cooling area, a freezing area, and a heat preservation area;

[0063] The adjustment method includes:

[0064] The preservation analysis unit determines a first adjustment method for the temperature and humidity in the cold chain preservation storage device according to the abnormal temperature and humidity area, temperature uniformity, and humidity uniformity;

[0065] Determining a second adjustment method for the initial hanging spacing of pork in the abnormal temperature and humidity area according to a number of initial hanging spacings of pork and temperature and humidity influencing factors;

[0066] Determining a third adjustment method for the temperature and humidity in the cold chain fresh-keeping storage device according to the comparison result of the fresh-keeping index and the preset fresh-keeping index, the temperature uniformity, and the humidity uniformity;

[0067] An execution unit is connected to the preservation analysis unit and is used to adjust the cold chain preservation storage device according to the adjustment method.

[0068] It is understandable that in the pork cold chain preservation control system, the effects of pork hanging spacing, water evaporation, and pork freezing time on pork weight and overall pork quality are often ignored, and it is not enough to simply adjust temperature parameters and humidity parameters. Because the pork is placed too close, it will affect the taste of the pork, hinder the circulation of cold air, and cause the temperature in some local areas to be too high; water evaporation will also cause the weight of the pork to decrease, affecting the taste of the pork and reducing the quality of the pork; excessive humidity will lead to the formation of condensed water, increase the growth opportunities of microorganisms, and accelerate the corruption of pork. Therefore, the present invention combines multiple parameters such as the pork hanging spacing, the weight of the pork during transportation, and the temperature and humidity data to adjust the cold chain preservation storage device, thereby further improving the reliability of the entire pork cold chain logistics transportation process, ensuring the quality of the pork during transportation, and improving the freshness of the pork.

[0069] In a specific embodiment, the interval time of the several time points ranges from 10min to 20min, preferably, the interval time of the several time points ranges from 15min; the several positions are the upper and lower inner sides of the fresh-keeping storage device corresponding to the several pork hanging positions, the target freezing temperature corresponding to the precooling zone is 0℃~4℃, preferably, the target freezing temperature corresponding to the precooling zone is 2℃; the target freezing temperature corresponding to the freezing zone is -12℃~-14℃, preferably, the target freezing temperature corresponding to the freezing zone is -13℃; the target freezing temperature corresponding to the heat preservation zone is -9℃~-11℃, preferably, the target freezing temperature corresponding to the heat preservation zone is -10℃. In implementation, the range and preferred value of the interval time of the several time points, the determination method of the several positions, and the range and preferred value of the target freezing temperature corresponding to the precooling zone, freezing zone and heat preservation zone can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0070] The present invention comprehensively considers the impact of multiple key factors on the cold chain preservation of pork, not only focusing on the adjustment of temperature and humidity parameters, but also innovatively introducing the weight of pork and the spacing between pork hanging during the cold chain transportation of pork as the basis for adjustment, effectively discovering the impact of water evaporation on the quality of pork, and avoiding the problem of reduced taste and excessive local temperature of pork caused by placing pork too close. At the same time, the placement area and placement time of pork are further adjusted, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0071] See also Figure 2 As shown, it is a flow chart of determining the weight loss degree at a single time point by the freshness-keeping analysis unit according to an embodiment of the present invention; specifically, it includes:

[0072] Step S11, the freshness-keeping analysis unit determines a single weight loss rate of each piece of pork at a single time point according to the real-time weight data and the initial weight data;

[0073] Step S12, determining the comprehensive weight loss rate of pork in a single placement area at a single time point according to the single weight loss rate;

[0074] Step S13, determining the weight loss degree in a single placement area at a single time point according to the comprehensive weight loss rate and the initial weight data.

[0075] It is understandable that by determining the degree of weight loss of pork at a single point in time, it can be further used as a substitute indicator for the amount of water evaporation of the pork itself, which in turn facilitates the subsequent adjustment of the spacing between the pork placements to achieve effective pork placement without affecting problems such as the inability of local temperature to diffuse, and without affecting the overall preservation effect of the pork.

[0076] In a specific embodiment, in a single placement area at a single time point, the initial weight data and real-time weight data of a number of porks in the single placement area are determined, and the single weight loss rate corresponding to each piece of pork is the ratio of the difference between the initial weight data and the real-time weight data and the initial weight data multiplied by 100%. The comprehensive weight loss rate in a single placement area at a single time point is the average of the single weight loss rates of a number of porks in the single placement area, and the weight loss degree in a single placement area is the product of the sum of the initial weight data of all porks in the corresponding area and the comprehensive weight loss rate. In implementation, the value range and preferred value of the single weight loss rate, the comprehensive weight loss rate and the weight loss degree can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0077] At a single time point, the freshness-keeping analysis unit of the present invention determines the single weight loss rate and the comprehensive weight loss rate of each piece of pork according to the real-time weight data of the pork during the cold chain transportation and the initial weight data before loading, and determines the degree of weight loss of the pork during the cold chain transportation, and effectively discovers the influence of water evaporation on the weight of pork, thereby further improving the freshness-keeping effect of pork during the cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0078] Specifically, the freshness-keeping analysis unit determines the corresponding temperature uniformity in a single placement area according to the temperature data at a single time point, and also determines the corresponding humidity uniformity according to the humidity data at a single time point.

[0079] It is understandable that temperature and humidity are important parameters that affect the preservation of pork, so the adjustment method for the pork preservation environment is determined by judging the uniformity of temperature and humidity.

[0080] In a specific embodiment, in a single placement area at a single time point, the temperature uniformity is the average of the temperature data at several positions in the single placement area, and the humidity uniformity is the average of the humidity data at several positions in the single placement area. In implementation, the temperature average, humidity average, temperature uniformity and humidity uniformity can be determined according to actual conditions, and no specific limitation is made here and no further description is given.

[0081] The present invention determines the temperature uniformity and humidity uniformity corresponding to a single placement area according to the temperature data and the humidity data at a single time point, takes into account the influence of the fresh-keeping environment on the quality of pork, further improves the fresh-keeping effect of pork during cold chain transportation, improves the quality and safety of pork throughout the entire cold chain logistics transportation process, and improves the reliability of the entire cold chain logistics transportation process of pork.

[0082] See also Figure 3 As shown, it is a flow chart of the freshness-keeping analysis unit of an embodiment of the present invention determining the abnormal temperature and humidity area at a single time point; specifically, it includes:

[0083] Step S21, the freshness-keeping analysis unit determines the temperature abnormality area in a single placement area at a single time point according to the temperature data and the temperature uniformity;

[0084] Step S22, determining the humidity abnormality area according to the humidity uniformity and humidity data;

[0085] Step S23, determining the abnormal temperature and humidity area according to the abnormal temperature area and the abnormal humidity area.

[0086] It is understandable that during the cold chain transportation of pork, a certain area within the pork hanging area may have high temperature and low humidity at the same time due to the lack of cold air circulation, which will have an additive adverse effect on the preservation of pork. Therefore, the abnormal temperature and humidity areas are identified for subsequent adjustments.

[0087] In a specific embodiment, in a single placement area at a single time point, the temperature abnormality area is determined according to the comparison result of the corresponding temperature data and the temperature uniformity, wherein if the temperature data is greater than the temperature uniformity, the corresponding position is the temperature abnormality area. The humidity abnormality area is determined according to the comparison result of the corresponding humidity data and the humidity uniformity, wherein if the humidity data is greater than the humidity uniformity, the corresponding position is the humidity abnormality area. At a single time point, the temperature and humidity abnormal area is the intersection of the temperature abnormal area and the humidity abnormal area. In implementation, the determination method of the temperature abnormal area, the humidity abnormal area, and the temperature and humidity abnormal area can be determined according to the actual situation, which is not specifically limited here and will not be repeated.

[0088] The present invention determines the abnormal temperature and humidity areas in a single area according to the corresponding temperature uniformity and humidity uniformity in the placement area at a single time point, and further determines the abnormal temperature and humidity areas in several areas, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0089] Specifically, the freshness-keeping analysis unit determines the abnormality index according to the total number of abnormalities in the temperature and humidity abnormal area at a single time point.

[0090] In a specific embodiment, at a single time point, the abnormality index is characterized by the probability of abnormal temperature and humidity areas appearing in the hanging area of ​​pork during cold chain transportation. The total number of abnormalities is the number of abnormal temperature and humidity areas, and the abnormality index is the product of the ratio of the total number of abnormalities to the total number of positions and 100%. In implementation, the abnormality index can be determined according to actual conditions, and is not specifically limited here and will not be repeated.

[0091] Specifically, at a single time point, the freshness-keeping analysis unit determines an abnormality level according to the weight loss degree and the abnormality index, determines an adjustment factor according to the abnormality level, and determines a freshness-keeping index according to the adjustment factor, temperature uniformity, and humidity uniformity.

[0092] In a specific embodiment, the abnormality level is the degree of quality decline of pork during cold chain transportation. Specifically, if the weight loss degree is less than the first loss degree and the abnormality index is less than the first abnormality index, the abnormality level is low; if the weight loss degree is greater than or equal to the first loss degree and less than or equal to the second loss degree, and the abnormality index is greater than or equal to the first abnormality index and less than the second abnormality index, the abnormality level is medium; if the weight loss degree is greater than the second loss degree and the abnormality index is greater than the second abnormality index, the abnormality level is high. The first loss degree is 5% to 10%, preferably, the first loss degree is 7%; the second loss degree ranges from 15% to 20%, preferably, the second loss degree ranges from 16%; the first abnormal index ranges from 2% to 3%, preferably, the first abnormal index is 2.5%; the second abnormal index ranges from 4% to 5%, preferably, the second abnormal index is 4.5%; in implementation, the method for determining the abnormal level, the first loss degree, the second loss degree, the first abnormal index and the value range and preferred value of the second abnormal index can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0093] In a specific embodiment, the adjustment factor is used to correct and adjust the freshness index of pork during cold chain transportation to make the freshness index accurate. It can be determined according to the abnormality level. The higher the abnormality level, the smaller the adjustment factor is to reflect the decline in the freshness state. The adjustment factor ranges from 0 to 1. Preferably, the adjustment factor is 0.95 at a low level, 0.85 at a medium level, and 0.75 at a high level. In implementation, the determination method, value range, and preferred value of the adjustment factor can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0094] In a specific embodiment, the freshness index is determined according to the adjustment factor, temperature uniformity, and humidity uniformity. Since the units of temperature uniformity and humidity uniformity are not unified, the temperature uniformity and humidity uniformity are standardized so that both are within the range of 0 to 1. For example, when the temperature uniformity is 4°C, the standard value of temperature uniformity is 0.4. When the humidity uniformity is 85%RH, the standard value of humidity uniformity is 0.85, and the freshness index is 1 minus the product of the standardized value of the sum of the adjustment factor and the humidity uniformity and the ratio of the standardized value of the sum of the temperature uniformity. In implementation, the determination method and value of the freshness index can be determined according to actual conditions, which is not specifically limited here and will not be repeated.

[0095] The freshness-keeping analysis unit of the present invention determines the abnormality level according to the weight loss degree and the abnormality index at a single time point, determines the adjustment factor according to the abnormality level, and determines the freshness-keeping index according to the adjustment factor, temperature uniformity and humidity uniformity, thereby further improving the freshness-keeping effect of pork during cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0096] Specifically, the preservation analysis unit determines the temperature difference of the temperature and humidity abnormal area according to the corresponding temperature data and temperature uniformity in the temperature and humidity abnormal area, determines the humidity difference of the temperature and humidity abnormal area according to the corresponding humidity data and humidity uniformity, determines the first adjustment method according to the temperature difference and humidity difference, and determines the second adjustment method according to the initial hanging spacing and the temperature and humidity influencing factors, wherein,

[0097] Determine a temperature adjustment amount and / or a humidity adjustment amount according to the temperature difference and the humidity difference;

[0098] The spacing adjustment amount for the hanging spacing of pork in the area with abnormal temperature and humidity is determined based on the initial hanging spacing and the temperature and humidity influencing factors.

[0099] In a specific embodiment, the temperature difference of the temperature and humidity abnormal area is the average of the sum of the differences between the corresponding temperature data and the temperature uniformity in several temperature and humidity abnormal areas, the humidity difference of the temperature and humidity abnormal area is the average of the sum of the differences between the corresponding humidity data and the humidity uniformity in several temperature and humidity abnormal areas, the temperature adjustment amount is the product of the temperature adjustment coefficient and the temperature difference, and the temperature adjustment coefficient has a value range of 0.4 to 0.6, preferably, the temperature adjustment coefficient has a value of 0.5. The humidity adjustment amount is the product of the humidity adjustment coefficient and the humidity difference, and the humidity adjustment coefficient has a value range of 0.4 to 0.6, preferably, the humidity adjustment coefficient has a value of 0.5. The spacing adjustment amount is the product of the temperature and humidity influence factor and the initial hanging spacing, and the temperature and humidity influence factor characterizes the degree of influence of the change in the pork hanging spacing on the temperature and humidity distribution in the cold chain transportation environment, and the temperature and humidity influence factor has a value range of 0.15 to 0.35, preferably, the temperature and humidity influence factor has a value of 0.2. In implementation, the temperature adjustment amount, the humidity adjustment amount, the spacing adjustment amount, the temperature and humidity influencing factors, the temperature adjustment coefficient, and the humidity adjustment coefficient can be determined according to actual conditions and are not specifically limited here and will not be repeated.

[0100] The preservation analysis unit of the present invention determines the first adjustment mode and the second adjustment mode according to the corresponding temperature mean, humidity mean, temperature uniformity and humidity uniformity in the temperature and humidity abnormal area, and adjusts the temperature and humidity in the cold chain preservation device and the pork hanging spacing, thereby further improving the preservation effect of pork during cold chain transportation, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire pork cold chain logistics transportation process.

[0101] Specifically, when the freshness index is less than the preset freshness index, the freshness analysis unit determines a third adjustment method according to a comparison result between the temperature uniformity and the preset first uniformity and a comparison result between the humidity uniformity and the preset second uniformity, wherein:

[0102] If the humidity uniformity is less than the preset first uniformity and / or the temperature uniformity is greater than the preset second uniformity, the air supply speed in the cold chain preservation storage device is adjusted.

[0103] In a specific embodiment, the value range of the preset freshness index is 0.5 to 1, preferably, the value of the preset freshness index is 0.55, the value range of the preset first uniformity is 85% RH to 90% RH, preferably, the value of the preset first uniformity is 87% RH; the value range of the preset second uniformity is 0°C to 4°C, preferably, the value of the preset second uniformity is 2°C; the value ranges and preferred values ​​of the preset freshness index, the preset first uniformity and the preset second uniformity can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0104] In a specific embodiment, specifically, if the temperature uniformity is greater than the preset second uniformity, the air supply speed is increased; if the humidity uniformity is less than the preset first uniformity, the air supply speed is increased; increasing the air supply speed can promote the circulation of cold air in the pork cold chain preservation environment and promote the uniform distribution of cold air to make the temperature uniform. At the same time, by increasing the wind speed, the formation and distribution of condensed water can be controlled, thereby improving the humidity uniformity. In implementation, the specific wind speed adjustment amount needs to be tested and debugged according to the actual situation to determine the best control strategy, which is not specifically limited here and will not be repeated.

[0105] In a specific embodiment, if the temperature uniformity is greater than the preset second uniformity and / or the humidity uniformity is less than the preset first uniformity, the air supply direction is changed; by changing the air supply direction, the circulation of cold air in the pork cold chain preservation environment can be promoted, and the uniform distribution of cold air can be promoted to make the temperature and humidity uniform. In implementation, the specific adjustment direction of the air supply direction needs to be tested and debugged according to the actual situation to determine the best control strategy, which is not specifically limited here and will not be repeated.

[0106] When the freshness-keeping index is less than a preset freshness-keeping index, the freshness-keeping analysis unit of the present invention determines a third adjustment method according to the comparison result of the temperature uniformity with the preset first uniformity and the comparison result of the humidity uniformity with the preset second uniformity, and adjusts the air supply speed and wind direction in the cold chain freshness-keeping storage device, thereby further improving the freshness-keeping effect of pork during cold chain transportation, improving the quality and safety of pork during the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0107] Specifically, the cold chain transfer analysis unit determines the placement time of each piece of pork in the cold chain preservation storage space according to the storage time and current time of each piece of pork, and determines the corresponding real-time transportation distance according to the transportation route and current position corresponding to each piece of pork, and also determines the freezing evaluation model of the pork according to the placement time, real-time transportation distance and the target freezing temperature corresponding to each placement area.

[0108] In a specific embodiment, the placement time of each piece of pork in the cold chain fresh-keeping storage space is the difference between the current time and the storage time. The cold chain transfer analysis unit uses a machine learning algorithm to combine the placement time, the real-time transportation distance, and the target freezing temperature of each placement area to construct a freezing assessment model, which can predict the freezing state of pork in different placement areas. In implementation, the machine learning algorithm for constructing the freezing assessment model can be determined according to actual conditions, which is not specifically limited here and will not be repeated.

[0109] Specifically, the cold chain transfer analysis unit obtains the freezing degree of the pork in each placement area according to the freezing evaluation model, and adjusts the placement area and placement / transfer time of each pork according to the freezing degree, wherein:

[0110] If the freezing degree of the pork in the pre-cooling area meets the preset fresh-keeping range, the pork is transferred to the freezing area for freezing at the first transfer time, and the placement time of the pork is determined according to the current freezing degree of the pork and the target freezing temperature corresponding to the freezing area;

[0111] If the freezing degree of the pork in the freezing zone does not meet the preset fresh-keeping range, the pork will be transferred to the warm-keeping zone at a second transfer time according to the freezing degree trend, or the pork will be placed in the pre-cooling zone for further freezing.

[0112] It is understandable that the freezing degree of pork is judged according to the freezing evaluation model, and the pork is transferred from the current placement area to a more suitable area. When pork first enters the cold chain preservation device, it is usually placed in the pre-cooling area. The cold chain transfer analysis unit uses the freezing evaluation model to monitor the freezing degree of pork in the pre-cooling area. If the freezing degree of pork in the pre-cooling area is judged to be "not fully frozen", it means that the temperature of the pork is still relatively high. At this time, the pork will continue to stay in the pre-cooling area for further cooling. Once the freezing degree of pork in the pre-cooling area reaches the standard of "suitable freezing", the cold chain transfer analysis unit will transfer the pork to the freezing area at the first transfer time, and then determine the placement time of pork in the freezing area according to the current freezing degree of pork and the target freezing temperature corresponding to the freezing area to ensure that the pork reaches and maintains the best freezing state in the freezing area. In the freezing area, if the freezing degree of pork is judged to be "over-frozen" (i.e., the temperature is too low and may damage the quality of pork), the cold chain transfer analysis unit transfers the pork from the freezing area to the insulation area at the second transfer time. The insulation area provides a relatively mild environment for alleviating the effects of over-freezing while keeping the pork in a frozen state until they are further processed or distributed.

[0113] In a specific embodiment, the freezing degree of pork is judged according to the freezing assessment model, and the freezing rate and heat transfer formula are added as conditions for the freezing assessment model to judge the freezing degree of pork. The freezing rate is used to describe the physical quantity of the freezing speed of pork in each placement area, and the freezing rate is the ratio of the temperature change of pork per unit time to the unit time. Due to heat transfer between pork and the surrounding environment during cold chain transportation, the heat transferred is the mass of pork, the specific heat capacity of pork and the change in pork temperature per unit time. The freezing assessment model is expressed as F=f(T, t, d, R, Q), where T represents the target freezing temperature; t represents the placement time; d represents the real-time transportation distance, R is the freezing rate, and Q is the heat transferred. In implementation, the evaluation factors of the freezing degree can also be determined according to actual conditions, which are not specifically limited here and will not be repeated.

[0114] In a specific embodiment, the value range of the first transfer time is 3min to 5min, preferably, the value of the first transfer time is 4min; the value range of the second transfer time is 5min to 10min, preferably, the value of the second transfer time is 8min; in implementation, the value range and preferred value of the first transfer time and the second transfer time can be determined according to actual conditions, and no specific limitation is made here, and no further description is given.

[0115] The present invention constructs a freezing evaluation model to monitor the freezing state of pork in a cold chain fresh-keeping storage space in real time, and determines the placement time and transfer time in real time, to ensure that pork is stored and transported under suitable freezing conditions, to avoid waste and loss of pork due to insufficient or excessive freezing, to improve the fresh-keeping effect of pork during cold chain transportation, to improve the quality and safety of pork throughout the entire cold chain logistics transportation process, and to improve the reliability of the entire cold chain logistics transportation process of pork.

[0116] On the other hand, see Figures 4 to 7 As shown, Figure 4 The internal structure diagram of the pork cold chain fresh-keeping storage device according to the embodiment of the present invention, wherein the detection component, the control component and the power supply component are not shown in FIG. Figure 4 It is shown in Figure 5 This is a schematic diagram of the structure of an arc-shaped curved slide rail according to an embodiment of the present invention. Figure 6 This is a bottom view of the arc-shaped curved slide rail according to an embodiment of the present invention. Figure 7 It is a top plan view of the arc-shaped curved slide rail according to an embodiment of the present invention.

[0117] Specifically, the present invention provides a pork cold chain preservation storage device using a pork cold chain preservation control system, comprising: a vehicle body and a refrigeration box 1, wherein the refrigeration box 1 is fixedly connected to the vehicle body, wherein:

[0118] The refrigeration box 1 comprises:

[0119] The storage area is composed of three cold chain areas separated from each other, namely a pre-cooling area 104, a freezing area 105 and a heat preservation area 106;

[0120] An arc-shaped curved slide rail 101 is arranged on the top of the refrigerating box 1. A plurality of hooks 1011 for hanging pork are arranged on one side of the arc-shaped curved slide rail 101 away from the top of the refrigerating box 1, a plurality of sliders 1012 arranged on both sides of the hook 1011 for driving the hook 1011 to slide on the arc-shaped curved slide rail 101, and a plurality of fixing parts 1013 arranged on both sides of the slider 1012 for fixing the slider 1012;

[0121] The spacing adjustment component 102 is connected to the slider 1012 and is used to move the slider 1012 and adjust the position of the slider 1012 .

[0122] A detection component is arranged at several positions inside the refrigerated box 1, and is used to detect temperature data and humidity data of several areas of the cold chain fresh-keeping storage device at several time points, and real-time weight data and initial weight data of pork in several areas, and is also used to monitor the placement distance between several hooks, and detect the storage time of each pork, the current time, the transportation route and the real-time position of the fresh-keeping transportation device;

[0123] An air supply component, which is arranged on the top or side of the refrigerating box 1, and is used to supply air to the inside of the refrigerating box 1, wherein the air supply component is provided with a refrigerator 103 for supplying air, a wind speed regulator for adjusting the wind speed of the air supply, and an air supply direction controller for changing the direction of the air supply;

[0124] A control component, which is arranged inside the refrigerating box 1, is used to adjust the temperature and humidity of the cold chain fresh-keeping storage device according to the first adjustment method, and to adjust the spacing of the plurality of sliders 1012 in the temperature and humidity abnormal area according to the second adjustment method, and to adjust the air supply speed according to the third adjustment method, and to move the pork to the corresponding pre-cooling area 104, freezing area 105 and insulation area 106 according to the freezing evaluation model result;

[0125] The power supply component provides power support for the arc-shaped curved slide rail 101, the detection component, the control component, the spacing adjustment component 102 and the air supply component.

[0126] In a specific embodiment, the arc-shaped curved slide rail 101 is a whole, with 5 parallel equal-length hanging rods, each of which is provided with at least 7 hooks, and each hook is provided with a slider 1012 and a fixing portion 1013 corresponding to the slider 1012 on both sides; the spacing adjustment component 102 is a motor drive device; the detection component includes a temperature sensor, a humidity sensor, a weight sensor, an Internet of Things sensor and a GPS positioning system, and a distance sensor. The weight sensor is integrated in the hook 1011 to measure the real-time weight of the hanging pork, and the distance sensor is used to monitor the placement distance between several hooks; the air supply component is arranged on the top of the refrigeration box 1. In implementation, the curvature of the arc-shaped curved slide rail 101 can be determined according to actual conditions, and no specific limitation is made here. The number and spacing of the hooks 1011 are determined according to the size and storage requirements of the cold storage box 1, the number of sliders 1012 is determined according to the number of hooks 1011, the number of sliders 1012 is twice the number of hooks 1011, the number of fixing parts 1013 is the same as the number of sliders 1012, and the types of equipment components included in the spacing adjustment component 102, the detection component, and the air supply component can be determined according to actual conditions, and are not specifically limited here and will not be repeated.

[0127] The present invention provides a pork cold chain preservation storage device, and arranges a storage area, an arc-shaped curved slide rail 101, a temperature and humidity adjustment component, a spacing adjustment component 102, a detection component, an air supply component and a power supply component in a refrigeration box body 1 to adjust the cold chain transportation environment of pork, thereby further improving the preservation effect of pork during the cold chain transportation process, improving the quality and safety of pork in the entire cold chain logistics transportation process, and improving the reliability of the entire cold chain logistics transportation process of pork.

[0128] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A pork cold chain preservation control system, characterized in that: include: A detection unit, which is used to detect temperature data, humidity data, real-time weight data of pork, initial weight data, storage time of each pork, current time, transportation route and real-time position of the fresh-keeping transportation device at several locations in the cold chain fresh-keeping storage space at several time points; A fresh-keeping analysis unit connected to the detection unit is used to determine the weight loss degree of pork in a single placement area according to the initial weight data and real-time weight data of the pork at a single time point, determine the temperature and humidity abnormal area in the single placement area according to the temperature data and humidity data, and determine the abnormal index according to the temperature and humidity abnormal area, determine the fresh-keeping index according to the weight loss degree, temperature uniformity, humidity uniformity, and abnormal index, and determine the adjustment method of the cold chain fresh-keeping storage device; a cold chain transfer analysis unit connected to the detection unit, for determining a freezing evaluation model for pork according to the storage time, current time, transportation distance, real-time location, and target freezing temperatures corresponding to each placement area, evaluating and analyzing the pork in the cold chain fresh-keeping storage space according to the freezing evaluation model, and adjusting the pork mobile placement area and placement / transfer time according to the analysis result, wherein the placement area includes a pre-cooling area, a freezing area, and a heat preservation area; The adjustment method includes: The preservation analysis unit determines a first adjustment method for the temperature and humidity in the cold chain preservation storage device according to the abnormal temperature and humidity area, temperature uniformity, and humidity uniformity; Determining a second adjustment method for the initial hanging spacing of pork in the abnormal temperature and humidity area according to a number of initial hanging spacings of pork and temperature and humidity influencing factors; Determining a third adjustment method for the temperature and humidity in the cold chain fresh-keeping storage device according to the comparison result of the fresh-keeping index and the preset fresh-keeping index, the temperature uniformity, and the humidity uniformity; An execution unit is connected to the preservation analysis unit and is used to adjust the cold chain preservation storage device according to the adjustment method.

2. The pork cold chain preservation control system according to claim 1 is characterized in that: include: The freshness-keeping analysis unit determines the single weight loss rate of each piece of pork at a single time point based on the real-time weight data and the initial weight data, determines the comprehensive weight loss rate of the pork in a single placement area at a single time point based on the single weight loss rate, and determines the degree of weight loss in a single placement area at a single time point based on the comprehensive weight loss rate and the initial weight data.

3. The pork cold chain preservation control system according to claim 1 is characterized in that: include: The freshness-keeping analysis unit determines the corresponding temperature uniformity in a single placement area according to the temperature data at a single time point, and determines the corresponding humidity uniformity according to the humidity data at a single time point.

4. The pork cold chain preservation control system according to claim 3 is characterized in that: include: The fresh-keeping analysis unit determines, in a single placement area at a single time point, an abnormal temperature area according to the temperature uniformity and the temperature data, determines an abnormal humidity area according to the humidity uniformity and the humidity data, and determines the abnormal temperature and humidity area according to both the abnormal temperature area and the abnormal humidity area.

5. The pork cold chain preservation control system according to claim 4, characterized in that: The freshness-keeping analysis unit determines an abnormality index according to the total number of abnormalities in the temperature and humidity abnormal area at a single time point; The abnormality level is also determined according to the weight loss degree and the abnormality index, the adjustment factor is determined according to the abnormality level, and the freshness index is determined according to the adjustment factor, temperature uniformity and humidity uniformity.

6. The pork cold chain preservation control system according to claim 5, characterized in that: The preservation analysis unit determines the temperature difference of the temperature and humidity abnormal area according to the corresponding temperature data and temperature uniformity in the temperature and humidity abnormal area, determines the humidity difference of the temperature and humidity abnormal area according to the corresponding humidity data and humidity uniformity, determines the first adjustment method according to the temperature difference and humidity difference, and determines the second adjustment method according to the initial hanging spacing and the temperature and humidity influencing factors, wherein: Determine a temperature adjustment amount and / or a humidity adjustment amount according to the temperature difference and the humidity difference; The spacing adjustment amount for the hanging spacing of pork in the area with abnormal temperature and humidity is determined based on the initial hanging spacing and the temperature and humidity influencing factors.

7. The pork cold chain preservation control system according to claim 6, characterized in that: When the freshness index is less than the preset freshness index, the freshness analysis unit determines a third adjustment method according to a comparison result between the temperature uniformity and the preset first uniformity and a comparison result between the humidity uniformity and the preset second uniformity, wherein: If the humidity uniformity is less than the preset first uniformity and / or the temperature uniformity is greater than the preset second uniformity, the air supply speed in the cold chain preservation storage device is adjusted.

8. The pork cold chain preservation control system according to claim 1, characterized in that: The cold chain transfer analysis unit determines the placement time of each piece of pork in the cold chain preservation storage space according to the storage time and current time of each piece of pork, and determines the corresponding real-time transportation distance according to the transportation route and current position corresponding to each piece of pork, and also determines the freezing evaluation model of the pork according to the placement time, real-time transportation distance and the target freezing temperature corresponding to each placement area.

9. The pork cold chain preservation control system according to claim 8, characterized in that: The cold chain transfer analysis unit obtains the freezing degree of the pork in each placement area according to the freezing evaluation model, and adjusts the placement area and placement / transfer time of each pork according to the freezing degree, wherein: If the freezing degree of the pork in the pre-cooling area meets the preset fresh-keeping range, the pork is transferred to the freezing area for freezing at the first transfer time, and the placement time of the pork is determined according to the current freezing degree of the pork and the target freezing temperature corresponding to the freezing area; If the freezing degree of the pork in the freezing zone does not meet the preset fresh-keeping range, the pork will be transferred to the warm-keeping zone at a second transfer time according to the freezing degree trend, or the pork will be placed in the pre-cooling zone for further freezing.

10. A pork cold chain preservation storage device, applied to the pork cold chain preservation control system according to any one of claims 1 to 9, characterized in that: include: A vehicle body and a refrigerated box body, wherein the refrigerated box body is fixedly connected to the vehicle body, wherein: The refrigeration box comprises: The storage area consists of three separate cold chain areas: pre-cooling area, freezing area, and insulation area; An arc-shaped curved slide rail, which is arranged on the top of the refrigerating box body, and a plurality of hooks for hanging pork are arranged on the side of the arc-shaped curved slide rail away from the top of the refrigerating box body, a plurality of sliders arranged on both sides of the hooks for driving the hooks to slide on the arc-shaped curved slide rail, and a plurality of fixing parts arranged on both sides of the sliders for fixing the sliders; The spacing adjustment component is connected to the slider and is used to move the slider and adjust the position of the slider. A detection component is arranged at several positions inside the refrigerated box body, and is used to detect temperature data, humidity data of several areas of the cold chain fresh-keeping storage device at several time points, and real-time weight data and initial weight data of pork in several areas, and is also used to monitor the placement distance between several hooks, and detect the storage time of each pork, the current time, the transportation route and the real-time position of the fresh-keeping transportation device; The air supply assembly is arranged on the top or side of the refrigeration box to supply air to the interior of the refrigeration box, wherein: The air supply assembly is provided with a refrigerator for supplying air, a wind speed regulator for adjusting the wind speed of the air supply, and an air supply direction controller for changing the direction of the air supply; a control component, which is arranged inside the refrigerated box, and is used to adjust the temperature and humidity of the cold chain fresh-keeping storage device according to the first adjustment method, and to adjust the spacing of the plurality of sliders in the temperature and humidity abnormal area according to the second adjustment method, and to adjust the air supply speed according to the third adjustment method, and to move the pork to the corresponding pre-cooling area, freezing area and insulation area according to the freezing evaluation model result; The power supply component provides power support for the arc-shaped curved slide rail, the detection component, the control component, the spacing adjustment component and the air supply component.

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