Intelligent water and fertilizer management system and method
By using real-time monitoring and incremental PID control through an intelligent water and fertilizer management system, the problems of low adjustment accuracy and poor dynamic response of traditional flower water and fertilizer management systems have been solved. This has enabled precise and stable management of water and fertilizer parameters during flower growth, thereby improving the quantity and quality of blooms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
Existing flower water and fertilizer management systems suffer from low adjustment precision, poor dynamic response, and difficulty in adapting to the dynamic water and fertilizer needs of different flower varieties. Furthermore, they lack personalized parameter settings, leading to resource waste and poor growth.
The system employs a data acquisition module to monitor water and fertilizer parameters in real time, a data processing module to generate a flower parameter database, and an incremental PID control module to perform real-time deviation calculation and control, thereby achieving intelligent adjustment of water and fertilizer levels.
It achieves precise and stable water and fertilizer parameters during flower growth, adapts to dynamic needs, reduces resource waste, increases the quantity and quality of flowers, and realizes fully automated management.
Smart Images
Figure CN121785098A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of flower cultivation and intelligent technology, specifically to an intelligent water and fertilizer management system and method. Background Technology
[0002] In flower cultivation, water and fertilizer management are key factors affecting flower growth, flowering quality, and survival rate. Traditional flower water and fertilizer management relies mainly on manual experience, leading to problems such as inaccurate fertilizer application, inappropriate watering timing, and unreasonable water-fertilizer ratios. This not only easily results in resource waste, such as soil pollution and fertilizer waste caused by over-fertilization, but may also negatively impact normal flower growth due to insufficient or excessive water and fertilizer. Furthermore, while some existing intelligent water and fertilizer systems have achieved data monitoring and automatic control, they still have the following shortcomings: First, the control algorithm is simple, mostly using threshold control, resulting in low adjustment accuracy and slow response speed, making it difficult to adapt to the dynamic water and fertilizer requirements of flowers at different growth stages. Second, it lacks personalized parameter settings for different flower varieties, resulting in poor versatility. Third, the system lacks the ability to dynamically adjust real-time data and cannot promptly correct deviations in water and fertilizer supply. Summary of the Invention
[0003] To address the aforementioned shortcomings in the existing technology, this invention provides an intelligent water and fertilizer management system and method, which solves the problems of low adjustment accuracy, poor dynamic response, and difficulty in adapting to the dynamic water and fertilizer needs of different flower varieties in existing flower water and fertilizer management systems or methods.
[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: An intelligent water and fertilizer management system includes: The data acquisition module is used to collect water and fertilizer parameters of the current flower variety in the soil in real time, and convert them into digital signals to generate real-time monitoring data of the current flower variety. The data processing module is used to receive real-time monitoring data of the current flower variety, generate pre-processed real-time monitoring data of the current flower variety through data preprocessing, and store the target water and fertilizer parameter thresholds of different flower varieties at each growth stage to generate a flower parameter database. The incremental PID control module is used to receive the real-time monitoring data of the current flower variety after preprocessing and the target water and fertilizer parameter threshold of the current flower variety. It calculates whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter threshold. If so, the incremental PID control method is used to control the target deviation of water and fertilizer parameters in the real-time monitoring data and generate the control quantity increment to realize the intelligent adjustment of the flower variety, including the amount of fertilizer and water. Otherwise, there is no need to trigger the control command for water and fertilizer adjustment.
[0005] A method for applying an intelligent water and fertilizer management system includes the following steps: S1. Real-time collection of water and fertilizer parameters for the current flower variety in the soil, and generation of real-time monitoring data for the current flower variety through signal conversion; S2. Perform data preprocessing on the real-time monitoring data of the current flower variety to generate preprocessed real-time monitoring data for the current flower variety; S3. Obtain the target water and fertilizer parameter thresholds for different flower varieties at each growth stage and generate a flower parameter database. S4. Call the flower parameter database to obtain the target water and fertilizer parameter threshold corresponding to the real-time monitoring data after preprocessing of the current flower variety. Calculate whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter threshold. If yes, execute step S5. Otherwise, there is no need to trigger the water and fertilizer adjustment control command. S5. An incremental PID control method is used to control the target deviation of water and fertilizer parameters in real-time monitoring data, and an incremental control quantity is generated to realize intelligent adjustment of flower varieties, including fertilizer amount and water amount.
[0006] The present invention has the following beneficial effects: The intelligent water and fertilizer management system and method proposed in this invention, through real-time monitoring and incremental PID dynamic adjustment, accurately stabilizes water and fertilizer parameters during the flowering period within the target range. It not only adapts to the dynamic needs of flowers for water and fertilizer during the growth process and avoids supply and demand imbalance to meet the needs of refined planting, but also realizes a fully automated water and fertilizer management process, reduces human intervention, and effectively improves the number and quality of flowers, planting efficiency, and the accuracy and dynamic adaptability of water and fertilizer regulation. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the structure of an intelligent water and fertilizer management system proposed in this invention; Figure 2 This is a flowchart illustrating an intelligent water and fertilizer management method proposed in this invention. Detailed Implementation
[0008] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.
[0009] like Figure 1 As shown, an intelligent water and fertilizer management system includes: The data acquisition module is used to collect water and fertilizer parameters of the current flower variety in the soil in real time, and convert them into digital signals to generate real-time monitoring data of the current flower variety.
[0010] Specifically, water and fertilizer parameters include soil nitrogen content, soil phosphorus content, soil potassium content, and soil moisture.
[0011] In this embodiment, the data acquisition module is used to collect water and fertilizer parameters of the current flower variety in the soil in real time, including but not limited to soil nitrogen content, soil phosphorus content, soil potassium content, soil moisture, etc. When collecting these water and fertilizer parameters, appropriate sensors can be selected, such as soil nitrogen, phosphorus and potassium sensors and soil moisture sensors, to collect the nitrogen, phosphorus and potassium concentrations and moisture in the soil growth environment of each flower variety. Then, the analog signals collected by each sensor are converted into digital signals by an A / D converter.
[0012] Therefore, this module collects water and fertilizer parameters such as nitrogen, phosphorus, potassium content and humidity in the soil in real time and converts them into digital signals, realizing dynamic perception of key parameters of the flower growth environment. This provides a real-time and original data foundation for subsequent intelligent decision-making, avoiding the lag and subjectivity of manual monitoring and ensuring the timeliness and objectivity of the data.
[0013] The data processing module is used to receive real-time monitoring data of the current flower variety, generate pre-processed real-time monitoring data of the current flower variety through data preprocessing, and store the target water and fertilizer parameter thresholds of different flower varieties at each growth stage to generate a flower parameter database.
[0014] Specifically, the target water and fertilizer parameter thresholds include nitrogen concentration threshold, phosphorus concentration threshold, potassium concentration threshold, and humidity threshold.
[0015] In this embodiment, the data processing module is electrically connected to the data acquisition module. It receives real-time monitoring data transmitted from the data acquisition module and filters this data to obtain reliable real-time monitoring data. Simultaneously, this module stores target water and fertilizer parameter thresholds for different flower varieties at various growth stages, including nitrogen concentration thresholds, phosphorus concentration thresholds, potassium concentration thresholds, and humidity thresholds, forming a flower parameter database. By storing target parameters for different flower varieties in this database, customized water and fertilizer solutions can be provided for different flowers such as roses, orchids, and succulents, demonstrating strong versatility. The data processing module can use an STM32F103 microcontroller as its core processor and has built-in various filtering algorithms, such as moving average filtering and median filtering, to filter the sensor-acquired data.
[0016] Therefore, by preprocessing real-time monitoring data through filtering, this module can eliminate environmental interference, such as invalid data caused by sensor errors and local soil unevenness, thereby improving data accuracy and providing reliable input for subsequent deviation calculation and control decisions. At the same time, it stores the target water and fertilizer parameter thresholds for different flower varieties at each growth stage, realizing precise management based on variety differentiation and growth stage differentiation, avoiding the drawbacks of the one-size-fits-all approach in traditional water and fertilizer management, and laying a data foundation for personalized regulation.
[0017] The incremental PID control module is used to receive the real-time monitoring data of the current flower variety after preprocessing and the target water and fertilizer parameter threshold of the current flower variety. It calculates whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter threshold. If so, the incremental PID control method is used to control the target deviation of water and fertilizer parameters in the real-time monitoring data and generate the control quantity increment to realize the intelligent adjustment of the flower variety, including the amount of fertilizer and water. Otherwise, there is no need to trigger the control command for water and fertilizer adjustment.
[0018] In this embodiment, the incremental PID control module is electrically connected to the data processing module. It is used to receive preprocessed real-time monitoring data and corresponding target water and fertilizer parameter thresholds, calculate the deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter thresholds, and then introduce an incremental PID control method to process the deviation and output the control increment to achieve intelligent adjustment of the amount of fertilizer and water for flower varieties. The specific operation process is as follows: Set the real-time monitoring data after pretreatment of the current flower variety as follows: , For the current time period; simultaneously set the real-time monitoring data after preprocessing for the current flower variety. The upper and lower limits of the corresponding target water and fertilizer parameter thresholds are respectively , .
[0019] Based on real-time monitoring data and the upper and lower limits of the corresponding target water and fertilizer parameter thresholds, the deviation between the current flower variety's water and fertilizer parameters and the corresponding target water and fertilizer parameter thresholds is calculated, specifically as follows: Perform the first judgment to assess the real-time monitoring data. Is it greater than or equal to the lower limit of the corresponding target water and fertilizer parameter threshold? And less than or equal to the upper limit of the corresponding target water and fertilizer parameter threshold. If so, then the deviation between the current water and fertilizer parameters of the flower variety and the corresponding target water and fertilizer parameter threshold is... If the value is 0, there is no need to trigger the water and fertilizer regulation control command; otherwise, execute the second judgment.
[0020] Perform the second judgment to judge the real-time monitoring data. Is it less than the lower limit of the corresponding target water and fertilizer parameter threshold? If so, then the deviation between the current flower variety's water and fertilizer parameters and the corresponding target water and fertilizer parameter threshold is considered. for A negative deviation requires triggering a control command to increase the water and fertilizer parameter; otherwise, the deviation between the current flower variety's water and fertilizer parameter and the corresponding target water and fertilizer parameter threshold will be considered negative. for If the deviation is positive, a control command needs to be triggered to lower the water and fertilizer parameters.
[0021] In this embodiment, by judging the relationship between real-time monitoring data and the upper and lower limits of the corresponding target water and fertilizer parameter thresholds, the deviation type is accurately identified, such as negative deviation, positive deviation, and no deviation, to determine whether adjustment is needed and the direction of adjustment, such as increase or decrease. This avoids ineffective regulation and reduces resource waste. If no adjustment is needed, no command is triggered, while ensuring that the regulation is targeted.
[0022] Based on deviation Incremental PID control is used to control the target deviation of water and fertilizer parameters, generating the control increment of these parameters, i.e.:
[0023] in, Indicates the first The increment of the control quantity of this water and fertilizer parameter at any given time. , , These represent the proportional coefficient, integral coefficient, and differential coefficient, respectively. Indicates the first Timing deviation, Indicates the first Timing deviation, Indicates the first Timing deviation.
[0024] In this embodiment, the proportionality coefficient based on the deviation is... Integral coefficient Differential coefficients Through synergistic action, the proportional stage responds quickly to immediate deviations, the integral stage eliminates cumulative errors, and if there is a long-term slight deficiency, the derivative stage predicts the trend of deviation changes, such as a rapid decrease or increase, ultimately achieving dynamic and precise control of water and fertilizer parameters. At the same time, the output control quantity is an incremental rather than an absolute control quantity, which can avoid large fluctuations in the control quantity, reduce the mechanical wear of actuators such as fertilizer pumps and watering valves, and reduce the impact on the root system of flowers, such as avoiding root burn or waterlogging caused by sudden large amounts of watering or fertilization, thus improving the stability of regulation.
[0025] Specifically, an incremental PID control method is used to control the target deviation of water and fertilizer parameters. When generating the control increment of the water and fertilizer parameters, the PID coefficients are dynamically adjusted based on the absolute value of the current deviation using an error weighting method, i.e.:
[0026]
[0027]
[0028] in, , , These represent the basic proportional coefficient, integral coefficient, and differential coefficient, respectively. , , These represent the proportional adaptive gain coefficient, integral adaptive gain coefficient, and derivative adaptive gain coefficient, respectively, which are used to assess the influence of control deviation on PID parameters. Their values are 1, 0.1, and 0.5, respectively. The proportional adaptive gain coefficient... The value is relatively large to enable a rapid response to water or nutrient demands; the integral adaptive gain coefficient is used. The value is relatively small to avoid over-fertilization due to integral saturation, while the differential adaptive gain coefficient... The value should be moderate to ensure smooth adjustment and prevent frequent valve operation.
[0029] In this embodiment, an error-weighted method is used to dynamically adjust the PID coefficients to ensure both the response speed and the stability and safety of water and fertilizer regulation; wherein, when the deviation... When the actual water and fertilizer levels are significantly lower than the target water and fertilizer parameter thresholds, then... , Increasing the proportional and integral coefficients can rapidly enhance the corrective force and shorten the adjustment time for water and fertilizer parameters. Reducing the derivative coefficients avoids the derivative term suppressing the adjustment speed or causing system oscillations, thus ensuring rapid response capability under large deviations; when the deviation... When the value is low, such as when it is close to the target water and fertilizer parameter threshold, the proportionality coefficient... and integral coefficient This decreases accordingly, returning to its baseline value, thereby mitigating the risk of overshoot, while the differential coefficient... This increases the system's ability to suppress minor fluctuations, preventing oscillations around target water and fertilizer parameter thresholds and ensuring steady-state accuracy of water and fertilizer control. Therefore, an error-weighted method is used to dynamically adjust the PID coefficients, better adapting to the time-varying characteristics of flower growth. This targeted approach addresses the different water and fertilizer demand patterns at different growth stages, such as seedling, flowering, and fruiting. For example, the flowering stage requires higher precision in water and fertilizer application, while the growth stage is more sensitive to the rate of replenishment. This method dynamically adapts to these time-varying needs, accelerating replenishment when there are large deviations and maintaining stable control when there are small deviations, thus better meeting the individualized water and fertilizer requirements of flower growth. Simultaneously, the system eliminates the need for frequent manual adjustments of the PID coefficients based on flower variety, growth stage, or environmental changes. The system automatically optimizes through deviation-parameter adaptive logic, reducing manual intervention and avoiding the limitations of manual tuning experience, significantly improving the system's intelligence and automation level.
[0030] Based on the incremental control of these water and fertilizer parameters, they are converted into corresponding target water and fertilizer parameter control commands to achieve intelligent adjustment of flower varieties, including fertilizer and water amounts. Specifically: If the increment of the water and fertilizer parameter is the increment of the soil nitrogen content, then an increment control command for the soil nitrogen content is generated to increase or decrease the soil nitrogen content.
[0031] If the increment of the water and fertilizer parameter is the increment of the soil phosphorus content, then an increment control instruction for the soil phosphorus content is generated to increase or decrease the soil phosphorus content.
[0032] If the increment of the water and fertilizer parameter is the increment of the soil potassium content, then an increment control instruction for the soil potassium content is generated to increase or decrease the soil potassium content.
[0033] If the increment of the water and fertilizer parameter control is the increment of the soil moisture control, then an incremental control command for soil moisture is generated to increase or decrease soil moisture.
[0034] Ultimately, it will enable intelligent regulation of flower varieties, including the amount of fertilizer and water.
[0035] In this embodiment, the control increments of different water and fertilizer parameters are converted into adjustment instructions for nitrogen, phosphorus, potassium content and humidity, realizing closed-loop control of parameter monitoring-deviation analysis-precise execution, and ultimately achieving intelligent adjustment of fertilizer and water application, which not only meets the real-time needs of flower growth, but also saves water and fertilizer resources and improves the quality of flower growth.
[0036] like Figure 2 As shown, a method for applying an intelligent water and fertilizer management system includes the following steps: S1. Real-time collection of water and fertilizer parameters for the current flower variety in the soil, and generation of real-time monitoring data for the current flower variety through signal conversion.
[0037] S2. Perform data preprocessing on the real-time monitoring data of the current flower variety to generate preprocessed real-time monitoring data for the current flower variety.
[0038] S3. Obtain the target water and fertilizer parameter thresholds for different flower varieties at each growth stage and generate a flower parameter database.
[0039] S4. Call the flower parameter database to obtain the target water and fertilizer parameter thresholds corresponding to the real-time monitoring data after preprocessing of the current flower variety. Calculate whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter thresholds. If yes, proceed to step S5. Otherwise, there is no need to trigger the water and fertilizer adjustment control command.
[0040] S5. An incremental PID control method is used to control the target deviation of water and fertilizer parameters in real-time monitoring data, and an incremental control quantity is generated to realize intelligent adjustment of flower varieties, including fertilizer amount and water amount.
[0041] In summary, the intelligent water and fertilizer management system and method proposed in this invention firstly stores target water and fertilizer parameter thresholds for different flower varieties in a flower parameter database, enabling customized water and fertilizer solutions for various flowers such as roses, orchids, and succulents, demonstrating strong versatility; secondly, employing an incremental PID control method, through the synergistic effect of proportional, integral, and derivative components, it can quickly correct deviations between real-time monitoring data and corresponding target water and fertilizer parameter thresholds, improving the accuracy and dynamic adaptability of water and fertilizer regulation, avoiding over- or under-fertilization, and meeting the needs of refined flower cultivation; simultaneously, the incremental PID control method... The output of the method is an incremental control quantity, which is low in sensitivity to disturbances and has a fast response speed, enabling it to adapt in real time to the dynamic changes in water and fertilizer requirements during flower growth. Furthermore, precise water and fertilizer control can reduce waste of fertilizer and water resources, lower planting costs, and reduce environmental pollution. Ultimately, through real-time monitoring and incremental PID dynamic adjustment, the water and fertilizer parameters of each flower variety during the flowering period are stabilized within the target range, effectively promoting the improvement of the number and quality of flowers. It also realizes a fully automated process from data collection, analysis, decision-making to execution, reducing manual intervention and improving planting efficiency and flower quality.
[0042] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.
[0043] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.
Claims
1. An intelligent water and fertilizer management system, characterized in that, include: The data acquisition module is used to collect water and fertilizer parameters of the current flower variety in the soil in real time, and convert them into digital signals to generate real-time monitoring data of the current flower variety. The data processing module is used to receive real-time monitoring data of the current flower variety, generate pre-processed real-time monitoring data of the current flower variety through data preprocessing, and store the target water and fertilizer parameter thresholds of different flower varieties at each growth stage to generate a flower parameter database. The incremental PID control module is used to receive the real-time monitoring data of the current flower variety after preprocessing and the target water and fertilizer parameter threshold of the current flower variety. It calculates whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter threshold. If so, the incremental PID control method is used to control the target deviation of water and fertilizer parameters in the real-time monitoring data and generate the control quantity increment to realize the intelligent adjustment of the flower variety, including the amount of fertilizer and water. Otherwise, there is no need to trigger the control command for water and fertilizer adjustment.
2. The intelligent water and fertilizer management system according to claim 1, characterized in that, Water and fertilizer parameters include soil nitrogen content, soil phosphorus content, soil potassium content, and soil moisture.
3. The intelligent water and fertilizer management system according to claim 2, characterized in that, The target water and fertilizer parameter thresholds include nitrogen concentration threshold, phosphorus concentration threshold, potassium concentration threshold, and humidity threshold.
4. The intelligent water and fertilizer management system according to claim 3, characterized in that, The incremental PID control module receives real-time monitoring data of the current flower variety after preprocessing and the target water and fertilizer parameter thresholds for the current flower variety. It calculates whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter thresholds. If so, it uses the incremental PID control method to control the target deviation of the water and fertilizer parameters in the real-time monitoring data, generating the control increment of the water and fertilizer parameters in the real-time monitoring data to realize intelligent adjustment of the flower variety, including fertilizer application and water volume. Otherwise, the process of triggering the control command for water and fertilizer adjustment is as follows: Set the real-time monitoring data after pretreatment of the current flower variety as follows: , For the current time period; simultaneously set the real-time monitoring data after preprocessing for the current flower variety. The upper and lower limits of the corresponding target water and fertilizer parameter thresholds are respectively , ; Based on real-time monitoring data and the upper and lower limits of the corresponding target water and fertilizer parameter thresholds, the deviation between the current flower variety's water and fertilizer parameters and the corresponding target water and fertilizer parameter thresholds is calculated, specifically as follows: Perform the first judgment to assess the real-time monitoring data. Is it greater than or equal to the lower limit of the corresponding target water and fertilizer parameter threshold? And less than or equal to the upper limit of the corresponding target water and fertilizer parameter threshold. If so, then the deviation between the current water and fertilizer parameters of the flower variety and the corresponding target water and fertilizer parameter threshold is... If the value is 0, there is no need to trigger the water and fertilizer regulation control command; otherwise, execute the second judgment. Perform the second judgment to judge the real-time monitoring data. Is it less than the lower limit of the corresponding target water and fertilizer parameter threshold? If so, then the deviation between the current flower variety's water and fertilizer parameters and the corresponding target water and fertilizer parameter threshold is considered. for If the deviation is negative, a control command needs to be triggered to increase the water and fertilizer parameter; otherwise, the deviation between the current water and fertilizer parameter of the flower variety and the corresponding target water and fertilizer parameter threshold will be considered. for If the deviation is positive, a control command needs to be triggered to lower the water and fertilizer parameter. Based on deviation Incremental PID control is used to control the target deviation of water and fertilizer parameters, generating the control increment of these parameters, i.e.: in, Indicates the first The increment of the control quantity of this water and fertilizer parameter at any given time. , , These represent the proportional coefficient, integral coefficient, and differential coefficient, respectively. Indicates the first Timing deviation, Indicates the first Timing deviation, Indicates the first Timing deviation; Based on the incremental control of the water and fertilizer parameters, it is converted into the corresponding target water and fertilizer parameter control command to achieve intelligent adjustment of flower varieties, including fertilizer amount and water amount.
5. The intelligent water and fertilizer management system according to claim 4, characterized in that, Incremental PID control is used to control the target deviation of water and fertilizer parameters. When generating the control increment of the water and fertilizer parameters, the PID coefficients are dynamically adjusted based on the absolute value of the current deviation using an error-weighted method. Specifically: in, , , These represent the basic proportional coefficient, integral coefficient, and differential coefficient, respectively. , , These represent the proportional adaptive gain coefficient, integral adaptive gain coefficient, and derivative adaptive gain coefficient, respectively.
6. The intelligent water and fertilizer management system according to claim 5, characterized in that, Based on the incremental control of these water and fertilizer parameters, they are converted into corresponding target water and fertilizer parameter control commands to achieve intelligent adjustment of flower varieties, including fertilizer and water amounts. Specifically: If the increment of the control quantity of the water and fertilizer parameter is the increment of the control quantity of soil nitrogen content, then an increment control instruction for soil nitrogen content is generated to achieve the increase or decrease of soil nitrogen content. If the increment of the control amount of the water and fertilizer parameter is the increment of the control amount of soil phosphorus content, then an increment control instruction for soil phosphorus content is generated to increase or decrease the soil phosphorus content. If the increment of the control amount of the water and fertilizer parameter is the increment of the control amount of soil potassium content, then an increment control instruction for soil potassium content is generated to increase or decrease the soil potassium content. If the increment of the control quantity of the water and fertilizer parameter is the increment of the control quantity of soil moisture, then an incremental control command for soil moisture is generated to increase or decrease soil moisture. Ultimately, it will enable intelligent regulation of flower varieties, including the amount of fertilizer and water.
7. A smart water and fertilizer management method, characterized in that, Applied to the system as described in any one of claims 1-5, comprising the following steps: S1. Real-time collection of water and fertilizer parameters for the current flower variety in the soil, and generation of real-time monitoring data for the current flower variety through signal conversion; S2. Perform data preprocessing on the real-time monitoring data of the current flower variety to generate preprocessed real-time monitoring data for the current flower variety; S3. Obtain the target water and fertilizer parameter thresholds for different flower varieties at each growth stage and generate a flower parameter database. S4. Call the flower parameter database to obtain the target water and fertilizer parameter threshold corresponding to the real-time monitoring data after preprocessing of the current flower variety. Calculate whether there is a deviation between the real-time monitoring data and the corresponding target water and fertilizer parameter threshold. If yes, execute step S5. Otherwise, there is no need to trigger the water and fertilizer adjustment control command. S5. An incremental PID control method is used to control the target deviation of water and fertilizer parameters in real-time monitoring data, and an incremental control quantity is generated to realize intelligent adjustment of flower varieties, including fertilizer amount and water amount.