Strawberry drip irrigation system and control method thereof

Abstract

This invention relates to the field of agricultural technology and discloses a strawberry drip irrigation system and its control method, particularly an intelligent strawberry drip irrigation system integrating water quality monitoring, soil monitoring, crop growth monitoring, and environmental monitoring. The system includes a water source management unit, a soil monitoring unit, a crop growth monitoring unit, an environmental monitoring unit, a topdressing control unit, a drip irrigation control unit, a central controller, and a feedback and adaptive correction unit. By monitoring strawberry leaf moisture content, soil moisture, fertility, and environmental factors in real time, the system can accurately calculate the water and fertilizer requirements of strawberries and make corrections based on the influence of environmental evapotranspiration, achieving precise drip irrigation and fertilization control. This invention improves water and fertilizer use efficiency, effectively improves the strawberry growing environment, and enhances strawberry yield and quality.

Description

Technical Field

[0001] This invention relates to the field of agricultural technology, and more specifically, to a strawberry drip irrigation system and its control method. Background Technology

[0002] Strawberries are a high-value fruit crop that is highly sensitive to its growing environment, with strict requirements for water and nutrient supply during their growth process. However, traditional strawberry cultivation methods rely heavily on manual experience for irrigation and fertilization, making precise management difficult and resulting in water and fertilizer waste, under-irrigation, or over-irrigation. Furthermore, traditional drip irrigation systems often lack real-time monitoring and dynamic adjustment of environmental factors, ignoring the impact of air temperature and humidity, light intensity, and wind speed on the strawberry's transpiration process, leading to unsatisfactory irrigation and fertilization effects and negatively impacting the growth quality and yield of strawberries.

[0003] While some drip irrigation systems on the market now possess basic water and fertility monitoring capabilities, they still suffer from limitations in monitoring methods and data integration. For example, many drip irrigation systems rely solely on soil moisture sensors as the trigger for irrigation, failing to comprehensively consider the water content of strawberry leaves, soil fertility, and the real-time growth status of the crop. Consequently, they cannot accurately reflect the actual water and nutrient requirements of strawberries. Furthermore, water quality is a crucial factor affecting the healthy growth of strawberries. Traditional systems have limited capabilities in monitoring and treating water quality, and cannot promptly trigger purification or alarm mechanisms when water quality is abnormal, posing potential risks to crop growth.

[0004] Meanwhile, traditional irrigation control systems mostly lack intelligent feedback and adaptive correction mechanisms, making it difficult to optimize and adjust future irrigation and fertilization amounts based on historical irrigation and fertilization data. This lack of closed-loop control makes drip irrigation management ill-suited to the dynamic water and fertilizer needs of strawberries at different growth stages, reducing water and fertilizer utilization efficiency and potentially causing environmental pollution. Therefore, there is an urgent need for a strawberry drip irrigation system capable of real-time monitoring of multiple environmental and crop growth parameters, and capable of comprehensive analysis and intelligent decision-making based on water quality, soil, crop, and environmental factors. This would enable more scientific, precise, and automated irrigation and fertilization management, thereby improving the growth quality and yield of strawberries. Summary of the Invention

[0005] In view of this, the present invention proposes a strawberry drip irrigation system and its control method, which aims to achieve comprehensive monitoring and precise management of the strawberry growth environment by integrating multiple sensors and intelligent control algorithms.

[0006] This invention proposes a strawberry drip irrigation system, comprising:

[0007] The water source management unit is configured to provide drip irrigation water and monitor water quality parameters in real time, including pH, conductivity, hardness, and sodium adsorption ratio. The water quality sensor is connected to the controller, and when the water quality parameters are abnormal, it triggers a water purification or alarm mechanism.

[0008] The soil monitoring unit, installed in the strawberry growing area, is configured to monitor the real-time soil moisture content and real-time soil fertility.

[0009] The crop growth monitoring unit is configured to monitor the growth status and health of strawberries, and analyze the water and fertilizer requirements of strawberries by combining real-time water content and real-time soil fertility.

[0010] An environmental monitoring unit, including an air temperature and humidity sensor and a light intensity sensor, is used to monitor the environmental impact of environmental factors on evapotranspiration, and to correct the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements.

[0011] The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; the fertilizer pump is configured to inject a certain amount of fertilizer into the drip irrigation water according to the actual fertilizer requirement;

[0012] The drip irrigation control unit is configured to control the water flow to open and close via a solenoid valve; the solenoid valve is controlled by the main controller to drip irrigate the strawberries according to the actual water demand;

[0013] The central controller is configured to receive data from the water source management unit, soil monitoring unit, crop growth monitoring unit, environmental monitoring unit, topdressing control unit, and drip irrigation control unit, and to make decisions and controls based on the data.

[0014] A feedback and adaptive correction unit is used to record the execution status of each irrigation and fertilization.

[0015] The anomaly detection module is configured to trigger an alarm signal and suspend irrigation when the pipe is blocked or the sensor fails.

[0016] Preferably, the water source management unit includes a water storage tank, a filtration device, and a water quality sensor; wherein, the water storage tank is used to store the water source required for drip irrigation; the filtration device is used to remove impurities and particulate matter from the water source; and the water quality sensor is used to monitor the water quality parameters in the water storage tank in real time.

[0017] The comprehensive water quality index is calculated based on water quality parameters, and the water source purification or alarm mechanism is triggered based on the comprehensive water quality index. The comprehensive water quality index is calculated based on the water quality parameters using the following formula:

[0018] ;

[0019] Wherein, WQI represents the comprehensive water quality index, which is dimensionless and ranges from 0 to 100; W i Q represents the weighting coefficient of the i-th water quality parameter, dimensionless; i This represents the quality score of the i-th water quality parameter;

[0020] ;

[0021] Among them, V i V represents the value of the i-th detected water quality parameter; ideal V represents the ideal value of the i-th water quality parameter; max This represents the maximum acceptable threshold for the i-th water quality parameter.

[0022] Preferably, when the water source purification or alarm mechanism is triggered based on the comprehensive water quality index, it includes:

[0023] Based on the comprehensive water quality index and the preset water quality index range, the controller initiates water purification and / or issues an alarm signal:

[0024] When 0≤WQI<50, the water quality is determined to be poor, and water purification and alarm are activated.

[0025] When 50≤WQI<75, the water quality is judged to be average, and water source purification is initiated;

[0026] When 75≤WQI≤100, the water quality is considered good, and no purification or alarm is required.

[0027] Preferably, the soil monitoring unit includes a soil moisture sensor and a nitrogen, phosphorus, and potassium nutrient sensor; wherein, the soil moisture sensor is used to monitor the moisture content in the soil in real time; and the nitrogen, phosphorus, and potassium nutrient sensor is used to detect the nutrient element content in the soil.

[0028] The crop growth monitoring unit includes a leaf moisture content sensor and a chlorophyll index sensor; wherein, the leaf moisture content sensor is used to monitor the moisture content of strawberry leaves in real time; and the chlorophyll index sensor is used to measure the moisture content of strawberry leaves.

[0029] Preferably, when analyzing the water and fertilizer requirements of strawberries by combining real-time moisture content with real-time soil fertility, the following are included:

[0030] Based on real-time soil moisture and fertility, the water requirement of strawberries is calculated using the following formula:

[0031] ;

[0032] Among them, K w θ represents the water demand coefficient, with a numerical range of 0.8-1.2; soilRepresents the real-time soil moisture content, dimensionless, relative saturation, with a numerical range of 0-1; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . This indicates the optimum moisture content of strawberry leaves, ranging from 80% to 90%; ϕ soil Soil fertility is expressed in mg / kg and is defined as a comprehensive index of nitrogen, phosphorus, and potassium.

[0033] ;

[0034] Wherein, N, P, and K represent the contents of nitrogen, phosphorus, and potassium, respectively.

[0035] Preferably, when adjusting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken:

[0036] ;

[0037] ;

[0038] in, This indicates the actual water demand, expressed in L / m³. 2 Q w This represents the originally calculated water demand, in L / m³. 2 FET represents the evaporation correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ; v represents wind speed, in m / s; v max This indicates the maximum wind speed, measured in m / s; k T k H k I k v This represents the influence coefficient of each environmental factor, with a numerical range of 0.1-0.5.

[0039] Preferably, when analyzing the water and fertilizer requirements of strawberries by combining real-time moisture content with real-time soil fertility, the following are included:

[0040] Based on the current nitrogen, phosphorus, and potassium content of the soil and the target requirements, the fertilizer requirement for strawberries is calculated using the following formula:

[0041] ;

[0042] Among them, Q fThis indicates the fertilizer requirement of strawberries, expressed in g / m². 2 ;K f ϕcrit represents the fertilizer requirement coefficient, with a value range of 0.5-1.5; ϕcrit represents the critical value of soil fertility; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . CI represents the optimum moisture content of strawberry leaves, expressed as %; CI represents the chlorophyll index. optimal This represents the optimal chlorophyll index, with a value range of 45-55.

[0043] Preferably, when adjusting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken:

[0044] ;

[0045] ;

[0046] in, This indicates the actual fertilizer requirement, expressed in g / m³. 2 Q f This represents the originally calculated fertilizer requirement, in g / m³. 2 ;F nutrient This indicates the fertilizer correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ;k′ T 、k′ H 、k′ I This represents the environmental impact coefficient of fertilizer requirement, with a value range of 0.05-0.3.

[0047] Preferably, the drip irrigation control unit includes a main drip irrigation pipe, branch pipes, and drippers; wherein, the main drip irrigation pipe is used to deliver water provided by the water source management unit to the strawberry planting area; the branch pipes are connected to the main drip irrigation pipe and are used to distribute the water flow to different strawberry planting rows; the drippers are installed at the end of the branch pipes and are used to drip water into the soil in a droplet form.

[0048] The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; wherein, the fertilizer storage tank is used to store fertilizer; the fertilizer pump is used to extract fertilizer from the fertilizer storage tank according to the calculated fertilizer amount; and the fertilizer solution mixer is used to mix the extracted fertilizer with drip irrigation water to form a fertilizer solution for strawberry absorption and utilization.

[0049] The present invention also provides a strawberry drip irrigation method, applied to the above-mentioned strawberry drip irrigation system, comprising:

[0050] The water source management unit provides drip irrigation water and monitors water quality parameters in real time to ensure that the water quality meets the requirements for strawberry growth; when the water quality parameters are abnormal, the water purification or alarm mechanism is automatically triggered.

[0051] The soil monitoring unit was used to monitor the soil moisture content and fertility status in the strawberry growing area in real time.

[0052] The growth status and health of strawberries are monitored by crop growth monitoring units, and the water and fertilizer requirements of strawberries are analyzed by combining soil moisture and fertility data.

[0053] The environmental monitoring unit monitors environmental factors such as air temperature, humidity and light intensity in real time, and corrects the water and fertilizer requirements of strawberries based on these factors to obtain the actual water and fertilizer requirements.

[0054] The fertilizer control unit automatically injects an appropriate amount of fertilizer into the drip irrigation water based on the corrected actual fertilizer requirement;

[0055] The drip irrigation control unit controls the opening and closing of the water flow through a solenoid valve to perform drip irrigation on the strawberries based on the corrected actual water demand.

[0056] The central controller receives and processes data from various monitoring and control units to make decisions and control measures.

[0057] The feedback and adaptive correction unit records the execution of each irrigation and fertilization, and performs adaptive corrections to the system based on the actual situation;

[0058] The anomaly detection module monitors the status of pipes and sensors in real time. When blockage or failure occurs, it triggers an alarm signal and suspends irrigation operations.

[0059] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0060] Precision water and fertilizer management: By monitoring strawberry leaf moisture content, soil moisture content and fertility data, the water and fertilizer requirements of strawberries at each stage of growth can be accurately calculated, enabling precise drip irrigation and topdressing control, and significantly improving water and fertilizer utilization efficiency.

[0061] Environmental adaptive correction: The system uses air temperature and humidity, light intensity and wind speed sensors to monitor environmental data in real time, and dynamically adjusts water and fertilizer requirements through a complex evapotranspiration correction formula, further improving the scientific and rational nature of irrigation and fertilization.

[0062] Intelligent control and automated management: The system is equipped with a central controller and a feedback adaptive correction unit, which can make automatic decision control based on real-time data, realize unattended intelligent management, and effectively reduce the need for manual intervention.

[0063] Water source safety assurance: The water source management unit monitors water quality parameters (pH, conductivity, hardness, sodium adsorption ratio, etc.) in real time, and can automatically trigger water purification or alarm signals when water quality is abnormal, ensuring the safety of strawberry irrigation water source.

[0064] Anomaly detection and alarm mechanism: The anomaly detection module can detect pipe blockage and sensor failure, and trigger an alarm signal to suspend irrigation, effectively reducing the risk of irrigation system failure and ensuring normal crop growth.

[0065] Improving strawberry yield and quality: Through refined water and fertilizer management and adaptive environmental regulation, the growing environment of strawberries can be effectively improved, resulting in better fruit quality and higher yield, while reducing irrigation costs and environmental pollution risks.

[0066] In summary, this invention achieves precise, efficient, and automated water and fertilizer management in strawberry cultivation through multi-dimensional monitoring and adaptive control technology, resulting in significant economic and environmental benefits. Attached Figure Description

[0067] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0068] Figure 1 This is a functional block diagram of a strawberry drip irrigation system. Detailed Implementation

[0069] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0070] See Figure 1 This embodiment provides a strawberry drip irrigation system, including:

[0071] The water source management unit is configured to provide drip irrigation water and monitor water quality parameters in real time, including pH, conductivity, hardness, and sodium adsorption ratio. The water quality sensor is connected to the controller, and when the water quality parameters are abnormal, it triggers a water purification or alarm mechanism.

[0072] The soil monitoring unit, installed in the strawberry growing area, is configured to monitor the real-time soil moisture content and real-time soil fertility.

[0073] The crop growth monitoring unit is configured to monitor the growth status and health of strawberries, and analyze the water and fertilizer requirements of strawberries by combining real-time water content and real-time soil fertility.

[0074] An environmental monitoring unit, including an air temperature and humidity sensor and a light intensity sensor, is used to monitor the environmental impact of environmental factors on evapotranspiration, and to correct the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements.

[0075] The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; the fertilizer pump is configured to inject a certain amount of fertilizer into the drip irrigation water according to the actual fertilizer requirement;

[0076] The drip irrigation control unit is configured to control the water flow to open and close via a solenoid valve; the solenoid valve is controlled by the main controller to drip irrigate the strawberries according to the actual water demand;

[0077] The central controller is configured to receive data from the water source management unit, soil monitoring unit, crop growth monitoring unit, environmental monitoring unit, topdressing control unit, and drip irrigation control unit, and to make decisions and controls based on the data.

[0078] A feedback and adaptive correction unit is used to record the execution status of each irrigation and fertilization.

[0079] The anomaly detection module is configured to trigger an alarm signal and suspend irrigation when the pipe is blocked or the sensor fails.

[0080] As can be seen, this embodiment proposes an innovative strawberry drip irrigation system, which consists of several key components and is designed to optimize the irrigation process for strawberries and ensure healthy crop growth. The main components of the system include:

[0081] The water management unit is meticulously designed to provide suitable drip irrigation water and has the ability to monitor water quality parameters in real time. Monitored parameters include key indicators such as pH, conductivity, hardness, and sodium adsorption ratio. To ensure data accuracy and timeliness, water quality sensors are closely connected to the central controller. When abnormal water quality parameters occur, the system will automatically trigger a water purification program or activate an alarm mechanism to prevent potential damage to crops.

[0082] The soil monitoring unit, installed within the strawberry growing area, is specifically designed to monitor soil moisture and fertility levels in real time. Through precise monitoring, this unit provides a suitable growing environment for the crops, ensuring that soil moisture and nutrients are always at their optimal levels.

[0083] The crop growth monitoring unit is designed to closely observe the growth and health status of strawberries. By combining real-time soil moisture and fertility analysis, the unit can accurately calculate the water and fertilizer requirements of strawberries, thereby providing the crop with customized water and nutrient supply.

[0084] The environmental monitoring unit, including air temperature and humidity sensors and light intensity sensors, is specifically designed to monitor the impact of environmental factors on evapotranspiration. Based on these environmental influences, the unit makes necessary adjustments to the crop's water and fertilizer requirements to obtain more accurate actual water and fertilizer needs.

[0085] The topdressing control unit consists of a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer. The fertilizer pump precisely injects the appropriate amount of fertilizer into the drip irrigation water based on the calculated actual fertilizer requirements, ensuring that the strawberries can absorb sufficient nutrients to promote their healthy growth.

[0086] The drip irrigation control unit is designed to control the opening and closing of water flow via solenoid valves. These solenoid valves are precisely controlled by a central controller, allowing for timed and quantitative drip irrigation of strawberries based on actual water demand, thereby achieving water conservation and improving fertilizer utilization.

[0087] The central controller, acting as the hub of the entire system, is responsible for receiving data from the water source management unit, soil monitoring unit, crop growth monitoring unit, environmental monitoring unit, topdressing control unit, and drip irrigation control unit. Based on this data, the central controller can make intelligent decisions and controls to ensure the efficient operation of the entire drip irrigation system.

[0088] The feedback and adaptive correction unit records the execution of each irrigation and fertilization cycle. By analyzing this data, the system can continuously learn and adjust to achieve more precise irrigation and fertilization strategies.

[0089] The anomaly detection module is designed to monitor the overall system's operational status. Upon detecting anomalies such as pipe blockage or sensor malfunction, the module will immediately trigger an alarm signal and suspend irrigation operations to prevent potential system failures or crop damage.

[0090] Understandably, the advantage of this embodiment lies in achieving full automation and intelligence of the strawberry drip irrigation system, significantly improving irrigation efficiency and fertilizer utilization. By monitoring water quality, soil, crop growth, and environmental parameters in real time, the system can accurately calculate the actual water and fertilizer requirements of the crop, thereby achieving on-demand irrigation and fertilization. This precise management approach not only contributes to the healthy growth of strawberries but also effectively reduces water waste and excessive fertilizer use, lowering agricultural production costs and improving economic benefits. Furthermore, the system's anomaly detection module and feedback and adaptive correction unit further enhance the system's stability and reliability, ensuring the long-term stable operation of the strawberry drip irrigation system.

[0091] In some embodiments of this application, the water source management unit includes a water storage tank, a filtration device, and a water quality sensor; wherein, the water storage tank is used to store the water source required for drip irrigation; the filtration device is used to remove impurities and particulate matter from the water source; and the water quality sensor is used to monitor the water quality parameters in the water storage tank in real time.

[0092] The comprehensive water quality index is calculated based on water quality parameters, and the water source purification or alarm mechanism is triggered based on the comprehensive water quality index. The comprehensive water quality index is calculated based on the water quality parameters using the following formula:

[0093] ;

[0094] Wherein, WQI represents the comprehensive water quality index, which is dimensionless and ranges from 0 to 100; W i Q represents the weighting coefficient of the i-th water quality parameter, dimensionless; i This represents the quality score of the i-th water quality parameter;

[0095] ;

[0096] Among them, V i V represents the value of the i-th detected water quality parameter; ideal V represents the ideal value of the i-th water quality parameter; max This represents the maximum acceptable threshold for the i-th water quality parameter.

[0097] As can be seen, this embodiment further enhances the intelligence level of the water source management unit by introducing a comprehensive water quality index calculation method. This method comprehensively considers the influence of multiple water quality parameters, and through the calculation of weighting coefficients and quality scores, it can derive a comprehensive index that fully reflects the water quality status. When the comprehensive water quality index is lower than the preset standard, the system will promptly trigger the water source purification program to ensure the cleanliness and suitability of the drip irrigation water source. When the water quality deteriorates significantly and exceeds the acceptable range, the system will activate an alarm mechanism to remind operators to take emergency measures to prevent irreversible damage to the strawberry crop. This meticulous water quality management strategy undoubtedly provides a strong guarantee for the healthy growth of strawberries.

[0098] In some embodiments of this application, when a water source purification or alarm mechanism is triggered based on the comprehensive water quality index, the following steps are included:

[0099] Based on the comprehensive water quality index and the preset water quality index range, the controller initiates water purification and / or issues an alarm signal:

[0100] When 0≤WQI<50, the water quality is determined to be poor, and water purification and alarm are activated.

[0101] When 50≤WQI<75, the water quality is judged to be average, and water source purification is initiated;

[0102] When 75≤WQI≤100, the water quality is considered good, and no purification or alarm is required.

[0103] As can be seen, this embodiment further enhances the flexibility and practicality of the water source management unit by setting clear water quality index ranges and corresponding response strategies. When the comprehensive water quality index falls within different ranges, the system takes corresponding measures. For example, in cases of extremely poor water quality, it will not only immediately initiate a water purification program to improve the water quality but also simultaneously issue an alarm signal to alert operators to pay attention to and handle this emergency. When the water quality is at a normal level, the system will automatically initiate a water purification program to improve the water quality to a state more suitable for crop growth, but it will not trigger an alarm to avoid unnecessary panic and interference. Of course, when the water quality is good, the system does not need to take any purification or alarm measures; it only needs to maintain the current state. This intelligent water quality management strategy not only improves the efficiency of water resource utilization but also effectively ensures the healthy growth of strawberry crops.

[0104] In some embodiments of this application, the soil monitoring unit includes a soil moisture sensor and a nitrogen, phosphorus, and potassium nutrient sensor; wherein the soil moisture sensor is used to monitor the moisture content in the soil in real time; and the nitrogen, phosphorus, and potassium nutrient sensor is used to detect the nutrient element content in the soil.

[0105] The crop growth monitoring unit includes a leaf moisture content sensor and a chlorophyll index sensor; wherein, the leaf moisture content sensor is used to monitor the moisture content of strawberry leaves in real time; and the chlorophyll index sensor is used to measure the moisture content of strawberry leaves.

[0106] As can be seen, this embodiment further enriches the monitoring functions of the drip irrigation system by introducing a soil monitoring unit and a crop growth monitoring unit. The soil monitoring unit can monitor the soil moisture status and nutrient content in real time, which is of great significance for guiding irrigation and fertilization operations. By accurately monitoring soil moisture, the system can adjust the irrigation amount according to actual needs, avoiding problems such as water waste and soil salinization. At the same time, the application of nitrogen, phosphorus, and potassium nutrient sensors enables the system to understand the nutrient content in the soil in a timely manner, thereby formulating a scientific fertilization plan to ensure that the strawberry crop receives an adequate supply of nutrients.

[0107] The crop growth monitoring unit uses leaf moisture content sensors and chlorophyll index sensors to monitor the water content and chlorophyll index of strawberry leaves in real time. This is crucial for assessing the crop's growth status and health. Changes in leaf moisture content reflect the crop's water requirements, while the chlorophyll index is closely related to the crop's photosynthetic efficiency and nutritional status. By monitoring these parameters, the system can promptly detect abnormalities in the crop's growth process and take corresponding intervention measures to ensure the healthy growth and high yield and quality of the strawberry crop.

[0108] In some embodiments of this application, when analyzing the water and fertilizer requirements of strawberries by combining real-time moisture content with real-time soil fertility, the following methods are included:

[0109] Based on real-time soil moisture and fertility, the water requirement of strawberries is calculated using the following formula:

[0110] ;

[0111] Among them, K w θ represents the water demand coefficient, with a numerical range of 0.8-1.2; soil Represents the real-time soil moisture content, dimensionless, relative saturation, with a numerical range of 0-1; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . This indicates the optimum moisture content of strawberry leaves, ranging from 80% to 90%; ϕ soil Soil fertility is expressed in mg / kg and is defined as a comprehensive index of nitrogen, phosphorus, and potassium.

[0112] ;

[0113] Wherein, N, P, and K represent the contents of nitrogen, phosphorus, and potassium, respectively.

[0114] As can be seen, this embodiment calculates the water and fertilizer requirements of strawberries by comprehensively considering multiple factors, including real-time soil moisture content, real-time soil fertility, and real-time moisture content of strawberry leaves. This method not only improves the accuracy of irrigation and fertilization but also avoids resource waste and environmental pollution caused by over-irrigation or over-fertilization. Water requirement coefficient K w The introduction of this technology allows the system to flexibly adjust irrigation levels based on soil and leaf moisture content, ensuring that strawberry crops receive adequate water. Simultaneously, the soil fertility index ϕ... soil The definition of nitrogen, phosphorus, and potassium in the soil provides an important basis for the system to formulate scientific fertilization plans. By accurately monitoring the nitrogen, phosphorus, and potassium content in the soil, the system can promptly understand the soil fertility status, thereby ensuring that strawberry crops receive a balanced supply of nutrients, promoting their healthy growth and high yield and quality. This intelligent irrigation and fertilization strategy not only improves water and fertilizer use efficiency but also effectively guarantees the growth quality and yield of strawberry crops.

[0115] In some embodiments of this application, when correcting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken:

[0116] ;

[0117] ;

[0118] in, This indicates the actual water demand, expressed in L / m³. 2 Q w This represents the originally calculated water demand, in L / m³. 2 FET represents the evaporation correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ; v represents wind speed, in m / s; v max This indicates the maximum wind speed, measured in m / s; k T k H k I k v This represents the influence coefficient of each environmental factor, with a numerical range of 0.1-0.5.

[0119] As can be seen, this embodiment refines the originally calculated water and fertilizer requirements by introducing an environmental impact correction factor. The consideration of the evapotranspiration correction factor (FET) allows the system to comprehensively assess the impact of environmental factors such as current air temperature, humidity, light intensity, and wind speed on water evaporation and transpiration in strawberry crops, thereby more accurately determining the actual water requirement. Simultaneously, by rationally setting the influence coefficients of various environmental factors, the system can flexibly respond to irrigation and fertilization needs under different environmental conditions, ensuring that strawberry crops receive appropriate water and nutrient supplies in different seasons and weather conditions. This intelligent environmental adaptability adjustment strategy not only improves the accuracy of irrigation and fertilization but also effectively guarantees the healthy growth and high yield and quality of strawberry crops.

[0120] In some embodiments of this application, when analyzing the water and fertilizer requirements of strawberries by combining real-time moisture content with real-time soil fertility, the following methods are included:

[0121] Based on the current nitrogen, phosphorus, and potassium content of the soil and the target requirements, the fertilizer requirement for strawberries is calculated using the following formula:

[0122] ;

[0123] Among them, Q f This indicates the fertilizer requirement of strawberries, expressed in g / m². 2 ;K f ϕcrit represents the fertilizer requirement coefficient, with a value range of 0.5-1.5; ϕcrit represents the critical value of soil fertility; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . CI represents the optimum moisture content of strawberry leaves, expressed as %; CI represents the chlorophyll index. optimal This represents the optimal chlorophyll index, with a value range of 45-55.

[0124] As can be seen, this embodiment calculates the fertilizer requirement of strawberries by comprehensively considering the current nitrogen, phosphorus, and potassium content of the soil, the target requirements, and factors such as the real-time water content and chlorophyll index of strawberry leaves. The setting of the fertilizer requirement coefficient Kf allows the system to flexibly adjust the fertilizer application rate according to soil fertility and the strawberry's growth status, ensuring that the strawberry crop receives an adequate supply of nutrients. Simultaneously, the critical soil fertility value ϕ... crit The introduction of chlorophyll index CI provides an important basis for the system to determine whether fertilization is needed. Furthermore, the chlorophyll index CI and its optimal value CI... optimalThe considerations reflected in this system, including photosynthetic efficiency and nutritional status, help the system to formulate more accurate fertilization plans. By precisely monitoring and analyzing these key indicators, the system can understand the nutritional needs of strawberry crops in a timely manner, thereby adopting scientific fertilization measures to promote healthy growth and high yield and quality. This refined fertilization management strategy not only improves fertilizer utilization efficiency but also effectively avoids environmental pollution problems caused by over-fertilization.

[0125] In some embodiments of this application, when correcting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken:

[0126] ;

[0127] ;

[0128] in, This indicates the actual fertilizer requirement, expressed in g / m³. 2 Q f This represents the originally calculated fertilizer requirement, in g / m³. 2 ;F nutrient This indicates the fertilizer correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ;k′ T 、k′ H 、k′ I This represents the environmental impact coefficient of fertilizer requirement, with a value range of 0.05-0.3.

[0129] It can be seen that this embodiment also introduces a fertilizer correction factor F in the process of correcting fertilizer requirements. nutrient This factor comprehensively considers the impact of environmental factors such as air temperature, humidity, and light intensity on fertilizer absorption and utilization efficiency. Through detailed analysis of these environmental factors, the system can assess their effect on the ability of strawberry roots to absorb fertilizer, thereby precisely adjusting the fertilizer application rate. The environmental impact coefficient for fertilizer requirement is k′. T 、k′ H 、k′ IThis intelligent fertilizer management strategy allows the system to flexibly adjust to the fertilizer requirements under different environmental conditions, ensuring that strawberry crops receive adequate nutrition at different growth stages. This not only further improves the precision of fertilization but also helps optimize fertilizer resource allocation, reduce unnecessary waste, and minimize potential environmental impact.

[0130] In some embodiments of this application, the drip irrigation control unit includes a main drip irrigation pipe, branch pipes, and drippers; wherein, the main drip irrigation pipe is used to deliver water provided by the water source management unit to the strawberry planting area; the branch pipes are connected to the main drip irrigation pipe and are used to distribute the water flow to different strawberry planting rows; the drippers are installed at the end of the branch pipes and are used to drip water into the soil in a droplet form.

[0131] The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; wherein, the fertilizer storage tank is used to store fertilizer; the fertilizer pump is used to extract fertilizer from the fertilizer storage tank according to the calculated fertilizer amount; and the fertilizer solution mixer is used to mix the extracted fertilizer with drip irrigation water to form a fertilizer solution for strawberry absorption and utilization.

[0132] As can be seen, the drip irrigation control unit and topdressing control unit in this embodiment are ingeniously designed, achieving precise control over the irrigation and fertilization processes. The coordinated use of the main drip irrigation pipes, branch pipes, and drippers ensures that water is delivered evenly and accurately to the roots of every strawberry plant in the planting area, avoiding water waste and excessive fluctuations in soil moisture. Simultaneously, the coordinated operation of the fertilizer storage tank, fertilizer pump, and fertilizer solution mixer in the topdressing control unit allows the system to precisely dispense fertilizer according to the calculated amount, mixing it with the drip irrigation water to form a fertilizer solution easily absorbed by the strawberries, thus improving fertilizer utilization and crop absorption efficiency. This refined irrigation and fertilization control strategy not only helps improve strawberry yield and quality but also reduces adverse environmental impacts, achieving sustainable agricultural development.

[0133] This embodiment also provides a strawberry drip irrigation method, applied to the above-mentioned strawberry drip irrigation system, including:

[0134] The water source management unit provides drip irrigation water and monitors water quality parameters in real time to ensure that the water quality meets the requirements for strawberry growth; when the water quality parameters are abnormal, the water purification or alarm mechanism is automatically triggered.

[0135] The soil monitoring unit was used to monitor the soil moisture content and fertility status in the strawberry growing area in real time.

[0136] The growth status and health of strawberries are monitored by crop growth monitoring units, and the water and fertilizer requirements of strawberries are analyzed by combining soil moisture and fertility data.

[0137] The environmental monitoring unit monitors environmental factors such as air temperature, humidity and light intensity in real time, and corrects the water and fertilizer requirements of strawberries based on these factors to obtain the actual water and fertilizer requirements.

[0138] The fertilizer control unit automatically injects an appropriate amount of fertilizer into the drip irrigation water based on the corrected actual fertilizer requirement;

[0139] The drip irrigation control unit controls the opening and closing of the water flow through a solenoid valve to perform drip irrigation on the strawberries based on the corrected actual water demand.

[0140] The central controller receives and processes data from various monitoring and control units to make decisions and control measures.

[0141] The feedback and adaptive correction unit records the execution of each irrigation and fertilization, and performs adaptive corrections to the system based on the actual situation;

[0142] The anomaly detection module monitors the status of pipes and sensors in real time. When blockage or failure occurs, it triggers an alarm signal and suspends irrigation operations.

[0143] As can be seen, the strawberry drip irrigation method in this embodiment achieves comprehensive monitoring of the strawberry growth environment and precise control of irrigation and fertilization processes through the collaborative work of multiple monitoring and control units. The water source management unit ensures the quality of the drip irrigation water source, while the soil monitoring unit and crop growth monitoring unit provide direct data on the water and fertilizer requirements for strawberry growth. The addition of the environmental monitoring unit further considers the impact of the external environment on strawberry growth, making irrigation and fertilization control more scientific and rational. The topdressing control unit and drip irrigation control unit perform precise fertilizer application and water flow control based on this data, ensuring nutrient supply and water management during the strawberry growth process. The central controller, as the core of the entire system, is responsible for receiving and processing data from various monitoring and control units, making decisions and controlling the system, and realizing intelligent management. The addition of the feedback and adaptive correction unit and the anomaly detection module further improves the stability and reliability of the system, ensuring the long-term stable operation of the strawberry drip irrigation system.

[0144] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0145] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0146] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0147] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0148] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A strawberry drip irrigation system, characterized in that, include: A water source management unit is configured to provide drip irrigation water and monitor water quality parameters in real time. The water source management unit includes a water storage tank, a filtration device, and a water quality sensor. The water storage tank is used to store the water required for drip irrigation. The water quality parameters include pH, conductivity, hardness, and sodium adsorption ratio. The water quality sensor is connected to a central controller, and when the water quality parameters are abnormal, a water purification or alarm mechanism is triggered. The soil monitoring unit, installed in the strawberry growing area, is configured to monitor the real-time soil moisture content and real-time soil fertility. The crop growth monitoring unit is configured to monitor the growth status and health of strawberries, and analyze the water and fertilizer requirements of strawberries by combining real-time water content and real-time soil fertility. An environmental monitoring unit, including an air temperature and humidity sensor and a light intensity sensor, is used to monitor the environmental impact of environmental factors on evapotranspiration, and to correct the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements. The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; the fertilizer pump is configured to inject fertilizer into the drip irrigation water according to the actual fertilizer requirement; The drip irrigation control unit is configured to control the water flow to open and close via a solenoid valve; the solenoid valve is controlled by a central controller to drip irrigate the strawberries according to the actual water demand. The central controller is configured to receive data from the water source management unit, soil monitoring unit, crop growth monitoring unit, environmental monitoring unit, topdressing control unit, and drip irrigation control unit, and to make decisions and controls based on the data. A feedback and adaptive correction unit is used to record the execution status of each irrigation and fertilization. The anomaly detection module is configured to trigger an alarm signal and suspend irrigation when the pipe is blocked or the sensor fails. When analyzing the water and fertilizer requirements of strawberries by combining real-time water content and real-time soil fertility, the following should be included: Based on real-time soil moisture and fertility, the water requirement of strawberries is calculated using the following formula: ； Among them, K w θ represents the water demand coefficient, with a numerical range of 0.8-1.2; soil Represents the real-time soil moisture content, dimensionless, relative saturation, with a numerical range of 0-1; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . This indicates the optimum moisture content of strawberry leaves, with a range of 80%-90%; φ soil Soil fertility is expressed in mg / kg and is defined as a comprehensive index of nitrogen, phosphorus, and potassium. ； Wherein, N, P, and K represent the contents of nitrogen, phosphorus, and potassium, respectively; When adjusting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken: ； ； in, This indicates the actual water demand, expressed in L / m³. 2 Q w This represents the originally calculated water demand, in L / m³. 2 ;F ET This indicates the evapotranspiration correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ; v represents wind speed, in m / s; v max This indicates the maximum wind speed, measured in m / s; k T k H k I k v This represents the influence coefficient of each environmental factor, with a numerical range of 0.1-0.5; When analyzing the water and fertilizer requirements of strawberries by combining real-time water content and real-time soil fertility, the following should be included: Based on the current nitrogen, phosphorus, and potassium content of the soil and the target requirements, the fertilizer requirement for strawberries is calculated using the following formula: ； Among them, Q f This indicates the fertilizer requirement of strawberries, expressed in g / m². 2 ;K f This represents the fertilizer requirement coefficient, with a value ranging from 0.5 to 1.5; φ crit Represents the critical value of soil fertility; θ leaf This indicates the real-time moisture content of strawberry leaves, expressed in % . CI represents the optimum moisture content of strawberry leaves, expressed as %; CI represents the chlorophyll index. optimal This represents the optimal chlorophyll index, with a value range of 45-55. When adjusting the water and fertilizer requirements based on the environmental impact to obtain the actual water and fertilizer requirements, the following steps are taken: ； ； in, This indicates the actual fertilizer requirement, expressed in g / m³. 2 Q f This represents the originally calculated fertilizer requirement, in g / m³. 2 ;F nutrient This indicates the fertilizer correction factor; T represents the current air temperature in °C; T ref H represents the reference temperature, in °C; H represents the current air humidity, in %; H ref I represents the baseline humidity; I represents the light intensity, measured in W / m². 2 ;I max This represents the maximum light intensity, expressed in W / m². 2 ;k′ T 、k′ H 、k′ I This represents the environmental impact coefficient of fertilizer requirement, with a value range of 0.05-0.

3.

2. The strawberry drip irrigation system according to claim 1, characterized in that, The filtration device is used to remove impurities and particulate matter from the water source; the water quality sensor is used to monitor the water quality parameters in the water storage tank in real time. The comprehensive water quality index is calculated based on water quality parameters, and the water source purification or alarm mechanism is triggered based on the comprehensive water quality index. The comprehensive water quality index is calculated based on the water quality parameters using the following formula: ； Wherein, WQI represents the comprehensive water quality index, which is dimensionless and ranges from 0 to 100; W i Q represents the weighting coefficient of the i-th water quality parameter, dimensionless; i This represents the quality score of the i-th water quality parameter; ； Among them, V i V represents the value of the i-th detected water quality parameter; ideal V represents the ideal value of the i-th water quality parameter; max This represents the maximum acceptable threshold for the i-th water quality parameter.

3. The strawberry drip irrigation system according to claim 2, characterized in that, When the water source purification or alarm mechanism is triggered based on the comprehensive water quality index, it includes: Based on the comprehensive water quality index and the preset water quality index range, the central controller initiates water purification and / or issues an alarm signal: When 0≤WQI<50, the water quality is determined to be poor, and water purification and alarm are activated. When 50≤WQI<75, the water quality is judged to be average, and water source purification is initiated; When 75≤WQI≤100, the water quality is considered good, and no purification or alarm is required.

4. The strawberry drip irrigation system according to claim 1, characterized in that, The soil monitoring unit includes a soil moisture sensor and a nitrogen, phosphorus, and potassium nutrient sensor; wherein, the soil moisture sensor is used to monitor the moisture content in the soil in real time; and the nitrogen, phosphorus, and potassium nutrient sensor is used to detect the nutrient element content in the soil. The crop growth monitoring unit includes a leaf moisture content sensor and a chlorophyll index sensor; wherein, the leaf moisture content sensor is used to monitor the moisture content of strawberry leaves in real time; and the chlorophyll index sensor is used to measure the moisture content of strawberry leaves.

5. The strawberry drip irrigation system according to claim 1, characterized in that, The drip irrigation control unit includes a main drip irrigation pipe, branch pipes, and drippers; wherein, the main drip irrigation pipe is used to deliver water provided by the water source management unit to the strawberry planting area; the branch pipes are connected to the main drip irrigation pipe and are used to distribute the water flow to different strawberry planting rows; the drippers are installed at the end of the branch pipes and are used to drip water into the soil in a droplet form; The topdressing control unit includes a fertilizer storage tank, a fertilizer pump, and a fertilizer solution mixer; wherein, the fertilizer storage tank is used to store fertilizer; the fertilizer pump is used to extract fertilizer from the fertilizer storage tank according to the calculated fertilizer amount; and the fertilizer solution mixer is used to mix the extracted fertilizer with drip irrigation water to form a fertilizer solution for strawberry absorption and utilization.

6. A strawberry drip irrigation method, applied to implement the strawberry drip irrigation system according to any one of claims 1-5, characterized in that, include: The water source management unit provides drip irrigation water and monitors water quality parameters in real time to ensure that the water quality meets the requirements for strawberry growth; when the water quality parameters are abnormal, the water purification or alarm mechanism is automatically triggered. The soil monitoring unit was used to monitor the soil moisture content and fertility status in the strawberry growing area in real time. The growth status and health of strawberries are monitored by crop growth monitoring units, and the water and fertilizer requirements of strawberries are analyzed by combining soil moisture and fertility data. The environmental monitoring unit monitors environmental factors such as air temperature, humidity, and light intensity in real time, and corrects the water and fertilizer requirements of strawberries based on these factors to obtain the actual water and fertilizer requirements. The fertilizer control unit automatically injects an appropriate amount of fertilizer into the drip irrigation water based on the corrected actual fertilizer requirement; The drip irrigation control unit controls the opening and closing of the water flow through a solenoid valve to perform drip irrigation on the strawberries based on the corrected actual water demand. The central controller receives and processes data from various monitoring and control units to make decisions and control measures. The feedback and adaptive correction unit records the execution of each irrigation and fertilization, and performs adaptive corrections to the system based on the actual situation; The anomaly detection module monitors the status of pipes and sensors in real time. When blockage or failure occurs, it triggers an alarm signal and suspends irrigation operations.

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