Vegetable intelligent monitoring and early warning warehouse and linkage regulation and control method thereof
By linking the intelligent monitoring module and the main control unit with the control system, the problems of low monitoring efficiency and inaccurate control in existing vegetable warehouses have been solved. This has enabled intelligent monitoring and data-driven management throughout the entire process, reducing losses, extending shelf life, and ensuring vegetable quality.
Patent Information
- Application Number
- CN202611332370.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-31
- Publication Date
- 2026-11-06
AI Technical Summary
Existing vegetable warehouses suffer from problems such as low efficiency of manual monitoring, inability to achieve 24-hour real-time monitoring, lack of intelligent early warning mechanisms, crude control methods, and inability to dynamically adapt to the optimal storage environment according to vegetable types and storage cycles, resulting in high vegetable losses and poor preservation effects.
Design a smart monitoring and early warning warehouse for vegetables. The smart monitoring module collects environmental parameters and vegetable status parameters in real time. Through the linkage between the main control unit and the control system, the temperature, humidity, gas concentration and other parameters are automatically adjusted. Combined with local and remote early warning mechanisms, the whole process is intelligently monitored and data-driven.
It achieves intelligent monitoring throughout the entire process, ensuring 24-hour real-time data collection and timely early warning, reducing storage losses, extending the shelf life of vegetables, ensuring quality, and supporting remote management and data traceability.
Smart Images

Figure CN123047409A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vegetable storage technology, specifically to a smart vegetable monitoring and early warning warehouse and its linkage control method. Background Technology
[0002] As perishable and easily spoiled agricultural products, vegetables have extremely high environmental requirements during storage. Factors such as temperature, humidity, carbon dioxide concentration, oxygen concentration, light intensity, and pests and diseases can all directly affect the shelf life and quality of vegetables.
[0003] Existing vegetable warehouses mostly rely on manual monitoring, which has the following shortcomings: First, manual monitoring is inefficient, unable to achieve 24-hour real-time monitoring, and prone to problems such as untimely parameter monitoring and large errors; second, there is a lack of intelligent early warning mechanisms, and when environmental parameters exceed the suitable range, or when abnormalities such as pests, diseases, or vegetable dehydration occur, timely warnings cannot be issued, resulting in a high vegetable loss rate; third, the control methods are crude, relying heavily on manual adjustment of temperature and humidity, and cannot dynamically adapt the optimal storage environment according to the type of vegetable and storage period, resulting in poor preservation effects; fourth, there is a lack of data management, and it is impossible to record changes in environmental parameters and vegetable status during storage, which is not conducive to subsequent optimization of storage plans and traceability of vegetable quality.
[0004] To address the aforementioned issues, a smart warehouse is needed that can achieve intelligent monitoring, automatic early warning, coordinated control, and data-driven management throughout the entire vegetable storage process, resolving the technical pain points of high losses, low monitoring efficiency, and inaccurate control in existing vegetable storage systems. After a detailed search, the applicant found no relevant technical solutions; therefore, a new technical solution is required to address the aforementioned technical problems. Summary of the Invention
[0005] A smart monitoring and early warning warehouse for vegetables includes: Warehouse Main Body: The warehouse main body includes multiple different storage areas to accommodate the storage needs of different types of vegetables; Intelligent monitoring module: used to collect environmental parameters and vegetable status parameters inside the storage area in real time; each storage area of the main warehouse is equipped with an intelligent monitoring module; Main control unit: Electrically connected to the intelligent monitoring module, control system, and early warning module respectively, used to receive the actual storage environment parameters and actual storage status parameters collected by the intelligent monitoring module, compare the actual storage environment parameters and actual storage status parameters of different vegetables with the preset storage environment parameters and preset storage status parameters respectively, link the control system to perform automatic control, and / or trigger the early warning module to issue an early warning; Control system: including temperature control device, humidity control device, ventilation device, and controlled atmosphere device; Early warning module: includes local early warning unit and / or remote early warning unit. Local early warning unit is set up at the main entrance of the warehouse and in the monitoring room; remote early warning unit uses electronic terminal. When an abnormality occurs, it pushes the early warning information to the staff's electronic terminal through wireless communication module.
[0006] As a preferred embodiment, the system also includes a data storage module, which is electrically connected to the main control unit. The data storage module is used to store all parameter data, early warning records, control records, and vegetable storage information collected by the intelligent monitoring module.
[0007] As a preferred option, a remote monitoring platform is also included. The remote monitoring platform is electrically connected to the main control unit. Staff can use the remote monitoring platform to view the environmental parameters and vegetable status inside the warehouse in real time, receive early warning information, and remotely control the operation of the linkage regulation system.
[0008] As a preferred embodiment, the intelligent monitoring module includes a temperature and humidity sensor, an oxygen and carbon integrated sensor, an ethylene sensor, a VOC sensor, an infrared temperature sensor, an image acquisition module, and a weighing sensor.
[0009] As a preferred embodiment, the control system includes a temperature control device, a humidity control device, a ventilation device, and a controlled atmosphere device.
[0010] As a preferred embodiment, the ventilation device includes a fresh air system and an exhaust system, and is installed on the top of the warehouse main body.
[0011] As a preferred embodiment, the inner wall of the warehouse body is provided with a thermal insulation layer.
[0012] As a preferred option, a moisture-proof layer is laid at the bottom of the main warehouse structure.
[0013] As a preferred option, each of the storage areas is equipped with a breathable shelving unit.
[0014] As a preferred embodiment, the ventilated shelf includes a frame with multiple layers of ventilated panels. Each of the four corners of the ventilated panels is equipped with a weighing sensor. The ventilated shelf also includes a ventilated frame that works in conjunction with the weighing sensors. Vegetables are placed inside the ventilated frame.
[0015] As a preferred solution, the coordinated control method for intelligent monitoring and early warning warehouses for vegetables includes the following steps:
[0016] S1: The main control unit presets storage environment parameters and storage status parameters for each type of vegetable. The preset storage environment parameters include temperature range, relative humidity range, and gas concentration range. Specifically, the gas concentration includes oxygen concentration, carbon dioxide concentration, ethylene concentration, and volatile harmful gas concentration. The preset storage status parameters include vegetable surface temperature range, standard template for vegetable appearance pattern, and vegetable weight water loss data range. S2: The intelligent monitoring module monitors the actual storage environment data and actual storage status data of each storage area and transmits them back to the main control unit in real time; S3: The main control unit compares and determines the preset storage environment parameter range with the actual storage environment data and compares and determines the preset storage state parameters with the actual storage state data. When any one or more actual storage environment data deviates from the preset storage environment parameter range, or / and any one or more actual storage state data exceeds the preset storage state parameters, the main control unit generates a corresponding linkage control strategy and sends control commands to the corresponding control system. S4: During the execution of the control strategy, the intelligent monitoring module continuously collects actual storage environment data and actual storage status data and feeds them back to the main control unit; the main control unit dynamically adjusts the control system based on the real-time returned data until all actual storage environment data and actual storage status data return to the corresponding preset parameters. After that, the main control unit issues a shutdown command to the corresponding control system, and this round of linkage control ends. S5: Repeat S2-S4.
[0017] As a preferred approach, during the control process, the main control unit anticipates the secondary environmental deviations caused by the operation of the control system and coordinates with the corresponding compensation devices of the temperature control device, humidity control device, and ventilation device to carry out compensation adjustments.
[0018] As a preferred embodiment, the linkage control strategy in S3 is a control system control logic generated for deviation items, including at least one of temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy; when the actual storage environment data deviates from the preset storage environment parameter range, after determining the control output based on the deviation direction and deviation magnitude, the active unit issues control commands for the corresponding opening degree and running time to at least one of the temperature control device, humidity control device, ventilation device, and air conditioning device.
[0019] As a preferred embodiment, the deviation direction indicates whether the actual storage environment data is higher or lower than the preset storage environment parameter range, or whether the actual storage state data is higher or lower than the preset storage state parameter; the deviation magnitude indicates the difference between the actual storage environment data and the boundary of the preset storage environment parameter range, or the difference between the actual storage state data and the preset storage state parameter.
[0020] As a preferred option, if multiple parameters are abnormal at the same time, the main control unit executes the linkage priority logic, and the risk level is pre-configured in the following order: abnormal gas composition, abnormal temperature, abnormal humidity, abnormal vegetable appearance, and abnormal vegetable dehydration status.
[0021] As a preferred embodiment, the temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy in S3 include: Temperature control strategy: When the temperature of the storage area is detected to be higher than the upper limit of the preset temperature range, the main control unit starts the refrigeration unit of the temperature control device to cool down. The main control unit anticipates that the absolute humidity of the storage area will gradually decrease during the continuous cooling operation. Before the relative humidity drops to the preset lower limit, the main control unit simultaneously activates the humidifier of the humidity control device to compensate for humidification, and at the same time activates the exhaust device of the ventilation device to remove the accumulated heat in the compartment. When the temperature of the storage area is detected to be lower than the lower limit of the preset temperature range, the main control unit starts the heater of the temperature control device to heat up. The main control unit anticipates that the heating will cause the relative humidity in the storage area to decrease, and the main control unit simultaneously activates the humidifier of the humidity control device to compensate for humidification. Humidity control strategy: When the actual relative humidity of the storage area is detected to be higher than the upper limit of the preset relative humidity range, the main control unit starts the dehumidifier of the humidity control device for dehumidification control. The main control unit anticipates that local cooling will occur during the dehumidification process and simultaneously links the temperature control device for precise constant temperature compensation. When the actual relative humidity of the storage area is detected to be lower than the lower limit of the preset relative humidity range, the main control unit starts the humidifier of the humidity control device for humidification control. The main control unit anticipates that harmful gases will accumulate during the humidification process and simultaneously links the fresh air system in the ventilation device for low-speed air exchange.
[0022] Gas composition control strategy: When the oxygen-carbon integrated sensor, ethylene sensor, and VOC sensor detect that the gas concentration in the storage area exceeds the standard, the main control unit starts the exhaust device of the ventilation device and the fresh air system to replace the internal and external air. The main control unit predicts that the large-volume fresh air replacement will easily bring in dry and cold outside air. At the same time as ventilation, the temperature control device and humidity control device are linked to perform constant temperature and humidity compensation adjustment.
[0023] Storage status intervention strategy: When the image acquisition module detects that the vegetables have deteriorated in appearance, if the relative humidity in the storage room has not yet reached the upper limit of the preset humidity range, the humidity control device will be activated to increase the relative humidity in the storage room while maintaining the temperature and humidity in the storage room within the preset parameter range. If the relative humidity in the storage room has reached the maximum value of the preset humidity range, the main control unit will reduce the storage temperature within the preset temperature range and reduce the air exchange speed of the ventilation device, fresh air system, and exhaust device.
[0024] When the rate of water loss of vegetables exceeds the preset threshold, if the temperature and humidity in the storage area have not yet reached the boundaries of their respective preset ranges, the main control unit will comprehensively adjust the temperature and humidity parameters within the preset parameter range to reduce the difference between dryness and humidity and the temperature difference, and reduce the frequency of ventilation. If the relative humidity in the storage area has reached the upper limit of the preset humidity range and the temperature has also reached the lower limit of the preset temperature range, the main control unit will output an abnormal warning signal to prompt the operation and maintenance personnel to intervene on-site.
[0025] As a preferred solution, in the temperature control strategy, when the temperature of the storage area is detected to be lower than the lower limit of the preset temperature range, or when the concentration of ethylene and carbon dioxide in the storage area exceeds the standard, the main control unit controls the fresh air system to perform low-speed ventilation.
[0026] In summary, due to the adoption of the above technical solution, this application has the following beneficial effects: 1. This application enables intelligent monitoring of the entire process without the need for manual supervision. It collects environmental parameters and vegetable status in real time 24 hours a day, solving the problems of low efficiency and large errors in manual monitoring and ensuring the comprehensiveness and timeliness of monitoring. 2. Equipped with an intelligent hierarchical early warning mechanism, it can quickly identify environmental anomalies and vegetable condition anomalies. Through local sound and light warnings and / or remote push warnings, it reminds staff to deal with the situation in a timely manner, effectively avoiding problems such as vegetable rot, mold, and outbreaks of pests and diseases, and reducing storage losses. 3. The linkage control is precise and efficient. It combines the appropriate storage parameters of different vegetables and automatically adjusts the temperature, humidity, gas concentration, etc. to meet the preservation needs of different types of vegetables, extend the shelf life of vegetables, and ensure the quality of vegetables. 4. Further enhance data management capabilities, fully record all data during the warehousing process, facilitate subsequent optimization of warehousing plans and traceability of vegetable quality, while also supporting remote management to improve warehouse management efficiency; 5. This application can divide storage areas according to vegetable types, realize zoned control, and is applicable to the storage of various vegetables. It has a wide range of applications and strong practicality. Attached Figure Description
[0027] Figure 1 This is a structural schematic diagram of the container body in this application; Figure 2 This is a structural schematic diagram of the ventilated shelving unit of this application; Figure 3 This is a structural schematic diagram of the permeable shelving unit and the permeable frame of this application at one angle. Figure 4 This is a structural schematic diagram of the permeable shelving unit and the permeable frame of this application at angle two; Figure 5 This is a structural schematic diagram of the breathable frame of this application; Figure 6This is a structural block diagram of the intelligent monitoring and early warning warehouse of this application; Figure label: 1. Warehouse body; 2. Thermal insulation layer; 3. Ventilation device; 4. Moisture-proof layer; 5. Storage area; 6. Ventilated rack; 7. Frame; 8. Ventilated panel; 9. Weighing sensor; 10. Ventilated frame. Detailed Implementation
[0028] The following combination Figure 1 — Figure 6 The specific embodiments of the present invention will be described in detail below. It should be noted that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the present invention. Example 1
[0029] A smart monitoring and early warning warehouse for vegetables includes: Warehouse Main Body: The warehouse main body includes a warehouse body 1 and a sealed door. The inner wall of the warehouse body 1 is provided with a thermal insulation layer 2, which is made of polyurethane insulation material. Multiple ventilation devices 3 are installed on the top of the warehouse body 1. The ventilation devices 3 include a fresh air system and an exhaust system. The opening and closing of the ventilation devices 3 are controlled by a main control unit. A moisture-proof layer 4 is laid at the bottom of the warehouse body 1, which is made of waterproof membrane. Through the thermal insulation layer 2, ventilation devices 3, and moisture-proof layer 4, external temperature and humidity fluctuations and external moisture can be effectively isolated, reducing the impact of external conditions on the storage environment inside the warehouse. The warehouse body 1 includes multiple different storage areas 5 to adapt to the storage needs of different types of vegetables. Each storage area 5 corresponds to at least one ventilation device 3. Different types of vegetables include leafy vegetables, fruit vegetables, root vegetables, etc. Each storage area 5 is equipped with a breathable shelf 6. The number of breathable shelves 6 is selected according to the size of the storage area 5, which will not be specifically described in this application. The air-permeable shelving 6 can ventilate, dissipate heat and moisture, and reduce stuffiness, thereby delaying the rotting of vegetables. More specifically, the air-permeable shelving 6 includes a frame 7, on which multiple layers of air-permeable panels 8 are installed. Each of the four corners of the air-permeable panels 8 is equipped with a weighing sensor 9. The weighing sensor 9 is wirelessly connected to the main control unit, which can be installed in an electrical control cabinet outside the main warehouse. The weighing sensor 9 is preferably a resistance strain gauge weighing sensor. The air-permeable shelving 6 is equipped with an air-permeable frame 10 that cooperates with the weighing sensor 9. Vegetables are placed inside the air-permeable frame 10. When the air-permeable frame 10 containing vegetables is placed on the weighing sensor 9, the elastic body undergoes elastic deformation under the action of the weight of the material. The resistance strain gauges attached to the surface of the elastic body deform synchronously with the elastic body, causing the resistance value of the resistance strain gauges to change. The Wheatstone bridge composed of multiple sets of resistance strain gauges converts the change in resistance into an analog voltage signal output. After signal conditioning processing, the weight detection signal is output to the main control unit.
[0030] Intelligent monitoring module: Used to collect environmental parameters and vegetable status parameters of each storage area in real time; each storage area is equipped with an intelligent monitoring module to ensure the comprehensiveness and accuracy of the collected data. The intelligent monitoring module is installed inside storage area 5 (not shown in the figure), and the specific location is not specifically limited. Technicians can choose the appropriate location according to the specific situation. The environmental parameters include: air temperature, relative humidity, oxygen concentration, carbon dioxide concentration, ethylene concentration, and volatile harmful gas concentration in storage area 5; the vegetable status parameters include: vegetable surface temperature, vegetable appearance image information, and vegetable weight and water loss data.
[0031] The aforementioned intelligent monitoring module includes a temperature and humidity sensor, an oxygen and carbon integrated sensor, an ethylene sensor, a VOC sensor, an infrared temperature sensor, an image acquisition module, and a weighing sensor. Specifically, the temperature and humidity sensor is used to monitor the temperature and relative humidity of the air in each storage area 5. The higher the temperature, the stronger the respiration of the vegetables, the faster the nutrient consumption, and the faster the aging and decay. High temperatures also promote the reproduction of microorganisms. On the other hand, if the temperature is too low, chilling injury is likely to occur, and the flesh will develop spots and browning. Therefore, it is necessary to maintain the appropriate temperature range for different types of vegetables to inhibit respiration and delay aging. When the relative humidity is too low, the vegetables lose water and wilt quickly, resulting in a decrease in weight. When the relative humidity is too high, condensation is likely to form on the surface of the vegetables, and high humidity breeds mold and rot. Therefore, it is necessary to maintain the humidity of different types of vegetables within a suitable range to reduce water loss and prevent condensation and rot.
[0032] The integrated oxygen and carbon dioxide sensor is used to monitor the oxygen and carbon dioxide concentrations in each storage area 5. When the oxygen concentration is high, the vegetables undergo vigorous aerobic respiration, consuming organic matter and accelerating aging. Conversely, when the oxygen concentration is too low, anaerobic respiration is triggered, producing alcohol, causing off-flavors and cell poisoning damage. Therefore, it is necessary to maintain appropriate oxygen concentrations for different types of vegetables and reduce respiration intensity while avoiding anaerobic respiration. Appropriately increasing the carbon dioxide concentration can inhibit vegetable respiration and delay ripening and aging. However, if the carbon dioxide concentration is too high, it can easily cause carbon dioxide damage, leading to browning, off-flavors, and tissue necrosis in vegetables. Therefore, it is necessary to maintain appropriate carbon dioxide concentrations for different types of vegetables and ensure that they do not exceed the standard.
[0033] Ethylene sensors are used to monitor the ethylene concentration in each storage area 5. Ethylene is a natural ripening and aging hormone that accelerates the yellowing of leafy vegetables, the softening of fruit vegetables after ripening, and the deterioration of the quality of root vegetables. Therefore, it is necessary to control the ethylene concentration in each storage area 5, set a minimum ethylene concentration, and start the exhaust device when the preset concentration is exceeded to promptly remove ethylene gas.
[0034] VOC sensors are used to monitor the concentration of volatile harmful gases in each storage area 5. The volatile harmful gases are mainly volatile organic compounds (VOCs) released by microorganisms when vegetables rot and spoil. An increase in the concentration of volatile harmful gases in storage area 5 indicates that some vegetables have begun to rot, and the gases emitted will also accelerate the deterioration of the quality of healthy vegetables in the surrounding area. Based on the concentration signal, the main control unit first starts the exhaust device in the ventilation system to exhaust the internal air, and then starts the fresh air system in the ventilation system to exchange air, and outputs an alarm signal to remind staff to check for spoiled vegetables.
[0035] Infrared temperature sensors are used to monitor the surface temperature of different types of vegetables. The sensors are installed at the bottom of each breathable plate 8 and at the top of the storage area 5. The specific number of sensors installed depends on the specific situation and is not specifically limited in this application. The infrared temperature sensors do not need to contact the vegetables; they receive the infrared energy radiated from the vegetable surface and convert it into the actual temperature of the vegetable's surface. There may be a discrepancy between the actual surface temperature of the vegetables and the air temperature within the storage area 5. When the vegetable temperature is too high, the vegetables have stronger respiration and metabolism, resulting in poor preservation. The main control unit collects continuous time-series sampling data from the infrared temperature sensors and counts the maximum and minimum vegetable temperatures within a set time window (e.g., 2 minutes), calculating the temperature fluctuation amplitude and rate of change to achieve vegetable temperature fluctuation monitoring. When the vegetable temperature fluctuation amplitude... When the temperature fluctuation exceeds the preset threshold, it indicates that the overall temperature difference of the vegetables is too large within the time window, and condensation is likely to form on the surface of the vegetables, increasing the risk of spoilage. When the rate of temperature change of the vegetables exceeds the preset rate threshold, it means that the vegetables are undergoing severe thermal shock. When the temperature of the vegetables drops rapidly, it is easy to reach the dew point instantaneously, causing sudden condensation on the surface of the vegetables. When the temperature of the vegetables rises rapidly, it will cause the respiration and metabolism of the vegetables to increase instantaneously, accelerating the deterioration and decay of the vegetables. When the rate of temperature change of the vegetables exceeds the preset rate threshold, the main control unit reduces the output power of the refrigerator or heater and reduces the ventilation speed of the ventilation device to slow down the rate of temperature rise and fall of the vegetables, weaken the thermal shock, and avoid quality damage caused by instantaneous condensation or sudden increase in respiration. The infrared temperature sensor mentioned above is mainly used to verify whether the air temperature is actually affecting the vegetables and to determine the actual hot and cold state of the vegetables.
[0036] The image acquisition module identifies yellowing, black spots, wilting, rotting, and diseases in vegetable leaves to determine the preservation effect and quality change trend. The image acquisition module is installed at the bottom of each layer of ventilation plate 8 and at the top of the storage area 5. The specific number of modules installed depends on the specific situation and is not specifically limited in this application. More specifically, the image acquisition module includes a camera and a supplementary light. The camera and supplementary light are connected to the main control unit. When a photo needs to be taken, the main control unit controls the supplementary light to turn on and then takes a picture of the vegetables. The supplementary light is on for approximately 0.5-2 seconds. Photos are taken every 1-2 hours. More preferably, to minimize the impact of the supplementary light on the vegetables, the supplementary light uses a low-heat LED cold light source.
[0037] Weighing sensor 9 is used to collect the weight of vegetables upon arrival at the warehouse and their real-time weight. The difference between the two is the water loss. The relative water loss rate of the vegetables is calculated based on the water loss rate. The water loss rate is an important feedback indicator for evaluating whether the temperature and humidity environment is suitable. If the water loss is too rapid, it indicates that the humidity in storage area 5 is too low. A continuous decrease in weight indicates that the vegetables are losing moisture. If the water loss exceeds a certain proportion, the vegetables will wilt, and their commercial value will decrease. The main control unit adjusts the working time and frequency of the exhaust device and the fresh air system of the ventilation system based on the water loss rate. More specifically, the formula for calculating the water loss rate is: The above This indicates the net weight of the vegetables upon arrival at the warehouse. This indicates the real-time net weight during storage. This indicates the cumulative water loss of the vegetables; Indicates the time of entry into the warehouse. Indicates the real-time data collection time. Indicates storage duration; This indicates the relative rate of water loss from vegetables.
[0038] The control system includes a temperature control device, a humidity control device, a ventilation device, and a controlled atmosphere device. It dynamically adjusts the system based on preset environmental parameters and vegetable state parameters for different vegetables, comparing them with actual environmental parameters and vegetable state parameters to ensure that the actual environmental parameters and vegetable state parameters meet the preset standards. Each storage area 5 is equipped with a control system; the specific installation location is selected by technicians based on specific circumstances, and this application does not impose specific limitations. More specifically, the temperature control device includes a refrigeration unit and a heater to regulate the temperature of storage area 5; the humidity control device includes a humidifier and a dehumidifier to regulate the humidity of storage area 5; the ventilation device includes an exhaust fan and a fresh air system. The exhaust fan and fresh air system work together to achieve air exchange between the inside and outside of storage area 5, refresh the gas composition within storage area 5, and assist in regulating the humidity and temperature within storage area 5; the controlled atmosphere device precisely corrects the oxygen and carbon dioxide composition within storage area 5; and the control system automatically adjusts according to instructions from the main control unit. Main control unit: Electrically connected to the intelligent monitoring module, control system, and early warning module respectively, used to receive the actual storage environment parameters and actual storage status parameters collected by the intelligent monitoring module, compare the actual storage environment parameters and actual storage status parameters of different vegetables with the preset storage environment parameters and preset storage status parameters respectively, link the control system to perform automatic control, and / or trigger the early warning module to issue an early warning; Early warning module: includes local early warning unit and / or remote early warning unit. The local early warning unit is set at the main entrance of the warehouse and / or the monitoring room, and uses an audible and visual alarm to issue an audible and visual warning when an anomaly occurs. The remote early warning unit uses electronic terminals, such as mobile phones, tablets, computers, etc., and pushes the early warning information to the staff's mobile phones, tablets, computers, etc., through a wireless communication module when an anomaly occurs. The early warning information includes the anomaly type, the anomaly area, the anomaly parameters, and the suggested handling method.
[0039] As a preferred solution, to ensure data traceability, a data storage module is also included. The data storage module is electrically connected to the main control unit and is used to store preset storage environment parameters, preset storage status parameters, actual storage environment parameters, actual storage status parameters, early warning records, control records, and vegetable storage information for different vegetables. The vegetable storage information includes vegetable type, storage time, and expected storage period. The storage period for all the above data is not less than one year, which facilitates subsequent data query, analysis, and quality traceability.
[0040] As a preferred solution, to facilitate the monitoring of vegetables, a remote monitoring platform is also included. The remote monitoring platform is electrically connected to the main control unit. Through the remote monitoring platform, staff can view the actual storage environment parameters and actual storage status parameters of each storage area in real time, receive early warning information, remotely control the operation of the linkage control system, and also remotely control the operation of the control system manually, query historical data, export reports, and realize remote warehouse management. The remote monitoring platform includes a computer platform and / or a mobile APP. Example 2
[0041] This embodiment describes a linkage control method for intelligent monitoring and early warning warehouses for vegetables, including the following steps: S1: The main control unit presets storage environment parameters and storage status parameters for each type of vegetable. The preset storage environment parameters include temperature range, relative humidity range, and gas concentration range. Specifically, the gas concentration includes oxygen concentration, carbon dioxide concentration, ethylene concentration, and volatile harmful gas concentration. The preset storage status parameters include vegetable surface temperature range, standard template for vegetable appearance patterns, and vegetable weight water loss data range. Each storage area 5 independently calls the corresponding preset storage environment parameters and preset storage status parameters according to the type of vegetable stored. S2: The intelligent monitoring module monitors the actual storage environment data and actual storage status data of each storage area 5 and transmits them back to the main control unit in real time; more specifically: the intelligent monitoring module includes a temperature and humidity sensor, an oxygen and carbon integrated sensor, an ethylene sensor, a VOC sensor, an infrared temperature sensor, an image acquisition module, and a weighing sensor; wherein, the temperature and humidity sensor, the oxygen and carbon integrated sensor, the ethylene sensor, and the VOC sensor collect the actual storage environment data of each storage area 5 and transmit them back to the main control unit in real time, and the infrared temperature sensor, the image acquisition module, and the weighing sensor collect the actual storage status data within each storage area 5 and transmit them back to the main control unit in real time; S3: The main control unit compares the actual storage environment data with the preset storage environment parameter range and the actual storage status data with the preset storage status parameters. When any one or more actual storage environment data deviates from the preset storage environment parameter range, or / and any one or more actual storage status data exceeds the preset storage status parameters, the main control unit generates a corresponding linkage control strategy and sends control commands to the corresponding control system. Specifically, the main control unit selectively starts one or more types of equipment in the following categories: the refrigerator or heater in the temperature control device, the humidifier or dehumidifier in the humidity control device, and the exhaust device or fresh air system in the ventilation device. The main control unit performs interlock control to prevent opposite control actions from canceling each other out. For example, it prohibits the refrigerator and heater from working simultaneously, or the humidifier and dehumidifier from working simultaneously. Preferably, before the corresponding control system sends control commands, the main control unit first triggers the early warning module to push early warnings to the local early warning unit and / or the remote early warning unit, and simultaneously stores the early warning information in the data storage module. Preferably, during the control process, the main control unit predicts the secondary environmental deviation caused by the operation of the control system and links the corresponding compensation devices in the temperature control device, humidity control device, and ventilation device to carry out compensation adjustment. For example, when the actual temperature of storage area 5 is too high, the main control unit starts the refrigeration unit of the temperature control device to cool down. The main control unit predicts that the refrigeration unit will condense water vapor in the air during operation, causing the humidity in storage area 5 to decrease and generate a secondary environmental deviation. Therefore, the humidifier of the humidity control device is linked as a compensation device, and the humidifier is started to add a small amount of humidification to offset the side effect of humidity reduction caused by cooling, so that the humidity can be stabilized within the preset relative humidity range while cooling down. The weighing sensor 9 detects that the relative water loss rate of vegetables exceeds the preset threshold. The main control unit determines that the water loss of vegetables is too fast and turns on the humidifier to increase humidity. At the same time, it predicts that the humidity in the warehouse will be too high after humidification. If the ventilation is insufficient, it will easily cause ethylene accumulation and accelerate the spoilage of vegetables. Then, the ventilation device is linked to low-level ventilation as compensation, which not only alleviates water loss of vegetables, but also avoids the accumulation of harmful gases in a high-humidity closed environment.
[0042] S4: During the execution of the control strategy, the intelligent monitoring module continuously collects actual storage environment data and actual storage status data and feeds them back to the main control unit. The main control unit dynamically adjusts the control system based on the real-time returned data until all actual storage environment data and actual storage status data return to the corresponding preset parameters. Then, the main control unit issues a shutdown command to the corresponding control system, and this round of linkage control ends. Specifically, the main control unit dynamically adjusts the start / stop status, output power, and running time of the chiller, heater, humidifier, dehumidifier, exhaust device, and fresh air system based on the real-time returned data, and continuously carries out closed-loop control. This step still implements interlock control, which will not be described in detail here.
[0043] S5: Repeat S2-S4.
[0044] As a preferred embodiment, the linkage control strategy in S3 is a control system control logic generated for deviations, including at least one of temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy. When the actual storage environment data deviates from the preset storage environment parameter range, after determining the control output based on the deviation direction and deviation magnitude, the active unit issues control commands for the corresponding opening degree and running time to at least one of the temperature control device, humidity control device, ventilation device, and air conditioning device. The deviation direction indicates that the actual storage environment data is higher or lower than the preset storage environment parameter range, or that the actual storage state data is higher or lower than the preset storage environment parameter range. Preset storage state parameters; Deviation range represents the difference between the actual storage environment data and the boundary of the preset storage environment parameter range. The larger the deviation range, the greater the output power or opening of the corresponding control system. It should be noted that the comparison process of the appearance pattern in the storage state data is as follows: the actual collected vegetable appearance pattern is compared with the preset appearance pattern standard template for feature similarity. When the similarity is lower than the set threshold, it is determined that the actual storage state data of the vegetable exceeds the preset storage state parameters. This parameter only completes the over-limit judgment based on similarity and does not need to determine the deviation direction and deviation range.
[0045] More preferably, if multiple parameters are abnormal at the same time, the main control unit executes the linkage priority logic, and prioritizes the control action corresponding to the high-risk item to avoid the reverse hedging and mutual cancellation of each control system; the risk level is pre-configured in the following order: abnormal gas composition, abnormal temperature, abnormal humidity, abnormal vegetable appearance, and abnormal vegetable dehydration state.
[0046] The temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy in S3 include: Temperature control strategy: When the temperature of storage area 5 is detected to be higher than the upper limit of the preset temperature range, the main control unit starts the refrigeration unit of the temperature control device to cool down; preferably, the main control unit predicts that during the continuous operation of the refrigeration, the evaporator of the refrigeration unit will condense and precipitate water vapor in storage area 5 and discharge it to the outside, and the absolute humidity of storage area 5 will gradually decrease, which will accelerate the rate of water loss from vegetable transpiration; therefore, before the relative humidity drops to the preset lower limit, the humidifier of the humidity control device is simultaneously linked to perform micro-compensation humidification to offset the dehumidification side effect of the refrigeration and avoid water loss, leaf shrinkage and wilting of vegetables during the high temperature cooling process; at the same time, the exhaust device of the ventilation device can be linked to discharge the heat accumulated in storage area 5, accelerate the temperature drop, and improve the cooling efficiency.
[0047] When the temperature of storage area 5 is detected to be lower than the lower limit of the preset temperature range, the main control unit activates the heater of the temperature control device to raise the temperature. Preferably, the main control unit predicts that the heating will increase the water-holding capacity of the air, causing the relative humidity in storage area 5 to decrease and exacerbate the water loss of vegetables. At the same time, the heating will increase the respiration and metabolism of vegetables, promoting an increase in ethylene release. Therefore, the humidifier of the humidity control device is linked to compensate for the humidification and offset the humidity drop caused by the heating. When the concentration of ethylene and carbon dioxide in storage area 5 exceeds the standard, the fresh air system can be controlled to perform low-speed ventilation.
[0048] Humidity control strategy: When the actual relative humidity of storage area 5 is detected to be higher than the upper limit of the preset relative humidity range, the main control unit starts the dehumidifier of the humidity control device for dehumidification control; preferably, the main control unit predicts that local cooling will occur during the dehumidification process, which may cause small fluctuations in the temperature inside the warehouse and low-temperature condensation in some areas, resulting in water condensation on the vegetable leaves, which in turn leads to the growth of mold and quality problems such as rotting and mold; therefore, the temperature control device is linked at the same time to perform precise constant temperature compensation, stabilize the overall temperature field in storage area 5, eliminate the hidden danger of local low-temperature condensation, and effectively avoid the secondary risk of vegetable condensation and spoilage during high humidity dehumidification.
[0049] When the actual relative humidity of storage area 5 is detected to be lower than the lower limit of the preset relative humidity range, the main control unit starts the humidifier of the humidity control device to regulate humidity. Preferably, the main control unit predicts that continuous single humidification in storage area 5 will easily cause local air circulation to lag and harmful gases to accumulate. The high humidity and stagnant air environment will accelerate the ripening, spoilage, and fermentation of vegetables. Therefore, the ventilation device is linked to the fresh air system to carry out a small amount of low-speed air exchange, which updates the air in the storage area in real time and dissipates the accumulated harmful gases, so as to achieve a stable preservation effect of humidification without stuffiness and moisture retention without gas accumulation.
[0050] Gas composition control strategy: When the oxygen-carbon integrated sensor, ethylene sensor, and VOC sensor detect that the gas concentration in the storage area exceeds the standard, the main control unit activates the exhaust device of the ventilation system and the fresh air system to replace the internal and external air. The main control unit predicts that the large-volume fresh air replacement will easily bring in dry and cold air from the outside, causing a sudden change in temperature and humidity in the warehouse, and causing vegetables to lose water and wilt due to stress. Therefore, while ventilating, the temperature control device and humidity control device are linked to perform constant temperature and humidity compensation adjustment to ensure that the vegetables are in a stable state during the ventilation and concentration reduction process, and do not suffer from deterioration such as water loss, frost damage, or wilting.
[0051] Storage Status Intervention Strategy: When the image acquisition module detects signs of deterioration in vegetables, such as wilting, wrinkling, dryness, and yellowing of leaves, even if the temperature and humidity parameters within storage area 5 are within the preset acceptable range, the main control unit still determines that the vegetables are showing signs of dehydration and deterioration. If the relative humidity within storage area 5 has not yet reached the upper limit of the preset humidity range, then, while maintaining the temperature and humidity within storage area 5 within the preset parameter range, the humidity control device is activated first for micro-humidification to moderately increase the relative humidity within storage area 5 and reduce the transpiration rate of the vegetables. The relative humidity is monitored in real time during the humidification process. When the relative humidity approaches the preset humidity level... When the relative humidity reaches the upper limit of the temperature range, the humidifier is shut off based on the interlock control logic, and the dehumidifier is briefly activated to make a slight adjustment, keeping the relative humidity within the preset range to prevent the vegetables from rotting due to excessive humidity. If the relative humidity in storage area 5 has reached the maximum value of the preset humidity range and humidification cannot continue, the main control unit will no longer activate the humidification action, but will instead fine-tune the temperature control device to slightly reduce the storage temperature within the preset temperature range, and reduce the air exchange speed of the fresh air and exhaust fans of the ventilation device to reduce the evaporation of water from the vegetables caused by air flow, thereby inhibiting the deterioration of vegetables due to water loss and intervening in quality deterioration in advance from the perspective of the vegetable's physical condition.
[0052] When the rate of water loss in vegetables exceeds the preset threshold and the weight of vegetables continues to decrease abnormally, it indicates that the current storage microenvironment is not suitable for the preservation needs of vegetables. If the temperature and humidity in storage area 5 have not yet reached the boundaries of their respective preset ranges, the main control unit will comprehensively fine-tune the temperature and humidity benchmark parameters within the preset parameter range to reduce the difference between dry and wet conditions and the temperature difference, and reduce the frequency of ventilation to reduce the evaporation and loss of water from vegetables. During the fine-tuning process, the secondary environmental deviation caused by the operation of a single device is offset by the multi-device compensation and control among the temperature control device, humidity control device, and ventilation device. Under the premise of not disrupting the environmental stability within the storage area, the continuous water and weight loss of vegetables is quickly suppressed. If the relative humidity in storage area 5 has reached the upper limit of the preset humidity range and the temperature has also reached the lower limit of the preset temperature range, and the automatic control has no adjustment margin, the device adjustment action will no longer be executed, and the main control unit will output an abnormal warning signal to prompt the operation and maintenance personnel to intervene on-site. Example 3
[0053] This embodiment provides a specific application: This embodiment is a real-world, routine application case of a cold storage facility for leafy green vegetables, specifically for the preservation and management of freshly harvested and stored crisp and tender leafy greens such as romaine lettuce and Shanghai bok choy. The preset storage environment parameters for storage area 5 are: storage temperature range of 6℃~12℃, relative humidity range of 85%~95%RH, oxygen concentration range of 18%~22%, carbon dioxide concentration ≤2000ppm, ethylene concentration ≤0.1ppm, and volatile harmful gas concentration ≤0.02mg / m³; the allowable fluctuation range of vegetable surface temperature is 7℃~13℃, with a temperature fluctuation threshold of ≤2℃ and a temperature change rate threshold of ≤0.5℃ / min within a 2-minute time window; the safe range for vegetable weight water loss is less than or equal to 3% within 24 hours; multiple sets of pre-stored standard templates of fresh leafy green appearance patterns (no wilting, no spots, bright color) are used for real-time image feature similarity comparison; the system is equipped with temperature control, humidity control, ventilation, and controlled atmosphere devices. During the large-scale harvesting and storage of vegetables, the residual heat from the field caused by the newly arrived vegetables led to a slow rise in the air temperature inside the warehouse. The system detected that the temperature in storage area 5 had risen to 13°C, exceeding the preset upper limit of 12°C, resulting in a single high-temperature anomaly. Other actual parameters, such as gas concentrations, remained within normal ranges. The main control unit generated a corresponding linkage control strategy, the specific process of which is as follows: The main control unit first starts the refrigeration unit to cool down and stabilize the temperature. During the continuous operation of the refrigeration unit, the air in storage area 5 continuously passes through the evaporator, and water vapor is condensed and discharged outside the chamber, causing the absolute humidity in storage area 5 to gradually decrease. If only refrigeration is continued, the humidity in storage area 5 will continue to drop, and the vegetables will lose water and dry out. Therefore, before the relative humidity drops below the 85%RH lower limit, the main control unit simultaneously starts the humidifier for micro-compensation humidification to offset the dehumidification side effects of refrigeration and maintain the humidity in storage area 5. At the same time, the exhaust device is started to quickly remove the heat brought in by the vegetables and accelerate the temperature drop.
[0054] During this cooling and control process, due to the disturbance of cold airflow, the surface temperature of vegetables in some areas experienced brief and small fluctuations. The system used an infrared temperature sensor to collect the vegetable temperature in real time in a 2-minute sliding window. The calculation showed that the temperature fluctuation range of the vegetables during this period was 2.3℃, slightly exceeding the preset fluctuation threshold of 2℃. It was determined that there was a slight thermal shock and a potential risk of condensation and rotting. Based on this, the main control unit actively fine-tuned the cooling output power and reduced the ventilation speed to slow down the rate of temperature drop of the vegetables, smoothly converge the temperature fluctuations, and avoid local condensation and stress-induced deterioration of the vegetables.
[0055] During the entire regulation cycle of cooling, stabilizing humidity, and smoothing the temperature fluctuation of vegetable bodies, an appearance image recognition and monitoring mechanism is operated synchronously and in real time to continuously compare the similarity between the appearance features of vegetables and the standard template. Under this working condition, the vegetables have not deteriorated, and the image similarity is always within the normal range, so no quality abnormality judgment is triggered, and this mechanism only serves as a monitoring fallback. Meanwhile, the concentrations of ethylene, carbon dioxide and volatile harmful gases in the warehouse are always within the safe range, so the fresh air system does not need to start the ventilation action and remains in a normal standby state, which conforms to the working logic of single disturbance and local linkage in real warehousing.
[0056] After the air temperature in the warehouse drops back to the normal range of 6°C to 12°C, the fluctuation range of the vegetable body temperature returns to within the threshold, and the humidity returns to a steady state, the system gradually exits the compensation regulation and restores the conventional fresh-keeping mode.
[0057] This embodiment distinguishes different levels of "regulation required, no regulation required, monitoring as fallback" according to different real-time states, so as to avoid invalid linkage of all modules. While ensuring the warehousing environment quickly returns to stability, it effectively prevents problems such as water loss and wilting of green leafy vegetables, condensation caused by cold and heat shock, and quality deterioration. Compared with the traditional storage mode that only controls air temperature, this solution has extremely prominent advantages: traditional warehousing only starts and stops the refrigeration equipment according to the air temperature in the warehouse, and passive dehumidification during the refrigeration process is very likely to cause water loss and dry leaves of green leafy vegetables, and cannot perceive the real cold and heat fluctuations on the surface of vegetables, which easily causes condensation and spoilage of vegetable bodies due to excessive cooling wind speed and sudden temperature changes. At the same time, it lacks pre-monitoring means for vegetable quality, and can only find problems after the vegetables are obviously deteriorated, resulting in strong fresh-keeping lag and high warehousing loss. Relying on multi-dimensional coordinated regulation of air environment, vegetable body state and appearance quality, this solution can predict and avoid the fresh-keeping disadvantages brought by refrigeration dehumidification and cold-heat shock in advance, maintain the steady state of temperature and humidity in the storage area 5 and the stable temperature of vegetable bodies throughout the whole process, and monitor vegetable quality in real time as a fallback through image recognition. In practical applications, the transit fresh-keeping period of crisp and tender green leafy vegetables such as leaf lettuce and Shanghai greens can be effectively extended by 2 to 3 days, the water loss rate and rot loss rate of vegetables are significantly reduced, the fresh food warehousing loss and operation cost are greatly reduced, and the industry pain points of traditional warehousing such as single regulation, poor adaptability and limited fresh-keeping effect are solved.
[0058] In summary, by adopting the above technical solutions, the present application has the following beneficial effects: 1. The present application can realize full-process intelligent monitoring, no manual on-duty is required, and environmental parameters and vegetable states are collected in real time 24 hours a day, which solves the problems of low efficiency and large error of manual monitoring, and ensures the comprehensiveness and timeliness of monitoring; 2. It is equipped with an intelligent graded early warning mechanism, which can quickly identify environmental abnormalities and vegetable state abnormalities, and remind the staff to deal with them in time through local acousto-optic early warning and / or remote push early warning, so as to effectively avoid problems such as vegetable rot, mildew, and pest and disease outbreaks, and reduce warehousing loss; 3. The linkage control is precise and efficient. It combines the appropriate storage parameters of different vegetables and automatically adjusts the temperature, humidity, gas concentration, etc. to meet the preservation needs of different types of vegetables, extend the shelf life of vegetables, and ensure the quality of vegetables. 4. Further enhance data management capabilities, fully record all data during the warehousing process, facilitate subsequent optimization of warehousing plans and traceability of vegetable quality, while also supporting remote management to improve warehouse management efficiency; 5. This application can divide storage areas according to vegetable types, realize zoned control, and is applicable to the storage of various vegetables. It has a wide range of applications and strong practicality.
[0059] It should be clarified that all the above-mentioned electronic devices preferably use waterproof equipment, which are all conventional technical means. The applicant will not go into details here. Waterproofing technicians can make the appropriate selection according to the specific circumstances.
[0060] 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 spirit and principles of the present invention should be included within the protection scope of the present invention.
[0061] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.
[0062] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.
[0063] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.
Claims
1. A smart monitoring and early warning warehouse for vegetables, characterized in that, include: Warehouse main body: The warehouse main body includes multiple different storage areas (5) to meet the storage needs of different types of vegetables; Intelligent monitoring module: used to collect the actual storage environment parameters and actual storage status parameters of vegetables in the storage area (5) in real time; each storage area (5) of the main warehouse is equipped with an intelligent monitoring module; Main control unit: Electrically connected to the intelligent monitoring module, control system, and early warning module respectively, used to receive the actual storage environment parameters and actual storage status parameters collected by the intelligent monitoring module, compare the actual storage environment parameters and actual storage status parameters of different vegetables with the preset storage environment parameters and preset storage status parameters respectively, link the control system to perform automatic control, and / or trigger the early warning module to issue an early warning; Control system: including temperature control device, humidity control device, ventilation device, and controlled atmosphere device; Early warning module: includes local early warning unit and / or remote early warning unit. The local early warning unit is set at the main entrance of the warehouse and / or the monitoring room; the remote early warning unit uses an electronic terminal, and when an anomaly occurs, it pushes the early warning information to the staff's electronic terminal through a wireless communication module.
2. The intelligent monitoring and early warning warehouse for vegetables according to claim 1, characterized in that, It also includes a data storage module, which is electrically connected to the main control unit. The data storage module is used to store preset storage environment parameters, preset storage status parameters, actual storage environment parameters, actual storage status parameters, early warning records, control records, and vegetable storage information for different vegetables.
3. The intelligent monitoring and early warning warehouse for vegetables according to claim 1, characterized in that, It also includes a remote monitoring platform, which is electrically connected to the main control unit. Staff can use the remote monitoring platform to view the actual storage environment parameters and actual storage status parameters inside each storage area in real time, receive early warning information, and remotely control the operation of the linkage and regulation system.
4. The intelligent monitoring and early warning warehouse for vegetables according to claim 1, characterized in that, The intelligent monitoring module includes a temperature and humidity sensor, an oxygen and carbon integrated sensor, an ethylene sensor, a VOC sensor, an infrared temperature sensor, an image acquisition module, and a weighing sensor.
5. A smart monitoring and early warning warehouse for vegetables according to claim 1, characterized in that, The control system includes a temperature control device, a humidity control device, a ventilation device, and a controlled atmosphere device.
6. A smart monitoring and early warning warehouse for vegetables according to claim 1, characterized in that, Each storage area is equipped with a breathable shelf (6), which includes a frame (7), a multi-layer breathable panel (8) on the frame (7), a weighing sensor (9) on each of the four corners of the breathable panel (8), and a breathable frame (10) that cooperates with the weighing sensor (9) on the breathable shelf (6). Vegetables are placed inside the breathable frame (10).
7. A method for coordinated control of a smart monitoring and early warning warehouse for vegetables according to any one of claims 1-6, characterized in that, Includes the following steps: S1: The main control unit presets storage environment parameters and storage status parameters for each type of vegetable. The preset storage environment parameters include temperature range, relative humidity range, and gas concentration range. Specifically, the gas concentration includes oxygen concentration, carbon dioxide concentration, ethylene concentration, and volatile harmful gas concentration. The preset storage status parameters include vegetable surface temperature range, standard template for vegetable appearance patterns, and vegetable weight water loss data range. S2: The intelligent monitoring module monitors the actual storage environment data and actual storage status data of each storage area (5) and transmits them back to the main control unit in real time; S3: The main control unit compares and determines the actual storage environment data with the preset storage environment parameter range and the actual storage status data with the preset storage status parameters. When any one or more actual storage environment data deviates from the preset storage environment parameter range, or / and any one or more actual storage status data exceeds the preset storage status parameters, the main control unit generates a corresponding linkage control strategy and sends control commands to the corresponding control system. S4: During the execution of the control strategy, the intelligent monitoring module continuously collects actual storage environment data and actual storage status data and feeds them back to the main control unit. The main control unit dynamically adjusts the control system based on the real-time returned data until all actual storage environment data and actual storage status data return to the corresponding preset parameters. Then, the main control unit sends a shutdown command to the corresponding control system, and the current round of linkage control ends. S5: Repeat S2-S4.
8. The linkage control method for intelligent monitoring and early warning warehouses for vegetables according to claim 7, characterized in that, During the control process, the main control unit predicts the secondary environmental deviations caused by the operation of the control system and coordinates with the corresponding compensation equipment of the temperature control device, humidity control device, and ventilation device to carry out compensation adjustment.
9. The linkage control method for intelligent monitoring and early warning warehouses for vegetables according to claim 8, characterized in that, The linkage control strategy in S3 is the control logic of the control system generated for the deviation term, including at least one of temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy. When the actual storage environment data deviates from the preset storage environment parameter range, after determining the control output based on the direction and magnitude of the deviation, the active unit sends control commands for the corresponding opening degree and running time to at least one of the temperature control device, humidity control device, ventilation device, and air conditioning device.
10. The linkage control method for intelligent monitoring and early warning warehouses for vegetables according to claim 9, characterized in that, The temperature control strategy, humidity control strategy, gas component control strategy, and storage state intervention strategy in S3 include: Temperature control strategy: When the temperature of the storage area is detected to be higher than the upper limit of the preset temperature range, the main control unit starts the refrigeration unit of the temperature control device to cool down. The main control unit anticipates that the absolute humidity of the storage area will gradually decrease during the continuous cooling operation. Before the relative humidity drops to the preset lower limit, the main control unit simultaneously activates the humidifier of the humidity control device to compensate for humidification, and at the same time activates the exhaust device of the ventilation device to remove the accumulated heat in the compartment. When the temperature of the storage area is detected to be lower than the lower limit of the preset temperature range, the main control unit starts the heater of the temperature control device to heat up. The main control unit anticipates that the heating will cause the relative humidity in the storage area to decrease, and the main control unit simultaneously activates the humidifier of the humidity control device to compensate for humidification. Humidity control strategy: When the actual relative humidity of the storage area is detected to be higher than the upper limit of the preset relative humidity range, the main control unit starts the dehumidifier of the humidity control device for dehumidification control. The main control unit anticipates that local cooling will occur during the dehumidification process and simultaneously links the temperature control device for precise constant temperature compensation. When the actual relative humidity of the storage area is detected to be lower than the lower limit of the preset relative humidity range, the main control unit starts the humidifier of the humidity control device for humidification control. The main control unit anticipates that harmful gases will accumulate during the humidification process and simultaneously links the fresh air system in the ventilation device for low-speed air exchange. Gas composition control strategy: When the oxygen-carbon integrated sensor, ethylene sensor, and VOC sensor detect that the gas concentration in the storage area exceeds the standard, the main control unit starts the exhaust device of the ventilation device and the fresh air system to exchange the internal and external air. The main control unit predicts that the large-volume fresh air exchange will easily bring in dry and cold outside air. At the same time as ventilation, the temperature control device and humidity control device are linked to perform constant temperature and humidity compensation adjustment. Storage status intervention strategy: When the image acquisition module detects that the vegetables have deteriorated in appearance, if the relative humidity inside the storage area has not yet reached the upper limit of the preset humidity range, the humidity control device will be activated to increase the relative humidity inside the storage area while maintaining the temperature and humidity within the preset parameter range. If the relative humidity inside the storage area has reached the maximum value of the preset humidity range, the main control unit will reduce the storage temperature within the preset temperature range and reduce the air exchange speed of the ventilation system and exhaust system. When the water loss rate of the vegetables exceeds the preset threshold, if the temperature and humidity in the storage area have not yet reached the boundaries of their respective preset ranges, the main control unit will comprehensively adjust the temperature and humidity parameters within the preset parameter range to reduce the dryness-wetness difference and temperature difference, and reduce the ventilation frequency. If the relative humidity in the storage area has reached the upper limit of the preset humidity range and the temperature has also reached the lower limit of the preset temperature range, the main control unit will output an abnormal warning signal to prompt maintenance personnel to intervene on-site.
