Internet of Things cloud platform irrigation control system

Abstract

The invention discloses an internet-of-things cloud platform irrigation control system, and the system comprises an irrigation environment detection module which detects the environment data of an irrigation land; the water supply module is connected with the reservoir and is used for extracting water; the water inlet end of the filtering module is communicated with the water outlet end of the water supply module, and impurities in the irrigation water are filtered. The system has the advantage of efficient and uniform irrigation, and solves the problems that in the using process of an existing Internet of Things cloud platform irrigation control system, efficient and uniform irrigation on land is inconvenient, if irrigation is not uniform, the soil humidity degrees of different areas are different, and the irrigation efficiency is poor. The growth speed and the health condition of the crops on different land parcels are inconsistent.

Description

Technical Field

[0001] The present invention relates to the field of irrigation technology, and in particular to an Internet of Things cloud platform irrigation control system. Background Art

[0002] The IoT cloud platform irrigation control system is a modern agricultural technology solution developed on the basis of traditional irrigation methods. Traditional irrigation methods rely more on farmers' experience and personal judgment, lack precise irrigation volume control, and are prone to over-irrigation or under-irrigation. It is necessary to manually turn on and off irrigation equipment at a fixed time, which consumes a lot of manpower. It cannot respond to climate change or changes in soil conditions in a timely manner, resulting in crop growth being affected. With the advancement of IoT technology, the emergence of various sensors, wireless communication technology, cloud computing and big data analysis technology has provided new ways to solve the above problems.

[0003] The cloud irrigation control system based on the Internet of Things with Chinese patent application number 201720406850.0 includes a central control station, an intelligent voice main controller and a local equipment sub-controller; the intelligent voice main controller and a plurality of local equipment sub-controllers form a wireless self-organizing local area network; the wireless self-organizing local area network is then wirelessly connected to the central control station via a GPRS remote communication network.

[0004] The existing IoT cloud platform irrigation control system is not convenient for efficient and uniform irrigation of the land during use. If the irrigation is uneven, the soil moisture level in different areas will be different, resulting in inconsistent growth rates and health conditions of crops in different plots. Summary of the invention

[0005] The purpose of the present invention is to provide an Internet of Things cloud platform irrigation control system, which has the advantages of efficient and uniform irrigation, and solves the problem that the existing Internet of Things cloud platform irrigation control system is not convenient for efficient and uniform irrigation of the land during use. If the irrigation is uneven, the soil moisture level in different areas will be different, resulting in inconsistent growth speed and health status of crops in different plots.

[0006] To achieve the above purpose, the present invention provides the following technical solution: an Internet of Things cloud platform irrigation control system, comprising:

[0007] An irrigation environment detection module, which detects environmental data of irrigated land;

[0008] A water supply module, the water supply module is connected to the water reservoir to extract water;

[0009] A filter module, wherein the water inlet of the filter module is connected to the water outlet of the water supply module to filter impurities in the irrigation water;

[0010] A water-fertilizer integrated system, wherein the water inlet of the water-fertilizer integrated system is connected to the water outlet of the filtering module, so that the filtered irrigation water enters the water-fertilizer integrated system, and the fertilizer feeding port of the water-fertilizer integrated system is connected to the quantitative addition module, and the quantitative addition module adjusts the amount of fertilizer added according to the amount of water added;

[0011] An automatic spraying system, wherein the liquid inlet of the automatic spraying system is connected to the liquid outlet of the water-fertilizer integrated system, and the mixed water and fertilizer are sprayed for irrigation. The number of automatic spraying systems is several, and the spraying range is 60M, and the spraying water pressure is 0.7MPa;

[0012] An IoT cloud platform receives detection data from the irrigation environment detection module, stores and analyzes the data, and then automatically adjusts the irrigation strategy based on the analysis data, preset rules, and AI algorithms. The IoT cloud platform signal is connected to a mobile terminal, and the data can be remotely viewed and preset rules and irrigation strategies can be adjusted through the mobile terminal;

[0013] Control module: The control module receives the irrigation strategy from the IoT cloud platform and controls the water supply module, filtration module, water-fertilizer integrated system and automatic spraying system according to the irrigation strategy.

[0014] As a preferred embodiment of an Internet of Things cloud platform irrigation control system of the present invention, the irrigation environment detection module includes a soil moisture sensor, a soil pH value sensor, a soil nutrient sensor, a soil temperature sensor, a light sensor and a rainfall sensor.

[0015] As a preferred Internet of Things cloud platform irrigation control system of the present invention, the soil moisture sensor detects the water content in the soil, the soil pH value sensor detects the acidity and alkalinity of the soil, the soil nutrient sensor detects the nitrogen, phosphorus and potassium content in the soil, the soil temperature sensor detects the soil temperature, the light sensor detects the light intensity, and the rainfall sensor detects the rainfall.

[0016] As a preferred IoT cloud platform irrigation control system of the present invention, the water supply module includes an inlet valve, an impurity filtering component, a water pump, an outlet valve, a water flow sensor, a water pressure sensor and a piping system. The piping system connects the inlet valve, the impurity filtering component, the water pump, the outlet valve, the water flow sensor and the water pressure sensor. The inlet valve controls the water flow into the water pump, the impurity filtering component filters large particles in the water to prevent damage to the water pump, the water pump extracts water from the reservoir, the outlet valve controls the water outlet, the water flow sensor detects the water flow inside the pipe, and the water pressure sensor detects the water pressure inside the piping system.

[0017] As a preferred IoT cloud platform irrigation control system of the present invention, the filtration module includes a sand filter, a screen filter, a cyclone separator, a laminated filter and a backwash filter. The sand filter is provided with quartz sand and gravel to filter large particles of impurities in the water. The screen filter is provided with a metal filter to filter small particles of impurities. The cyclone separator separates suspended matter in the water by centrifugal force. The laminated filter is provided with a plurality of annular water filter elements to filter tiny impurities. The backwash filter is connected to a backwash water pump.

[0018] As a preferred IoT cloud platform irrigation control system of the present invention, the water inlet end of the sand and gravel filter is connected to the water supply module to perform preliminary filtering on the water, the water outlet end of the sand and gravel filter is connected to the screen filter, the water outlet end of the screen filter is connected to the cyclone separator, and the water outlet end of the cyclone separator is connected to the backwash filter to filter the water multiple times to prevent impurities in the water from clogging the automatic spraying system. When impurities need to be cleaned, the backwash water pump injects cleaning water into the backwash filter, and the backwash filter injects water into the laminated filter, the cyclone separator, the screening filter and the sand and gravel filter in turn. The sewage discharge end of the sand and gravel filter is connected to a sewage discharge solenoid valve to discharge the sewage.

[0019] As a preferred IoT cloud platform irrigation control system of the present invention, the water-fertilizer integrated system includes a mixing tank, on which are respectively installed an agitator, a heating wire, a temperature sensor, a spray pipe and a liquid supply pump, the mixing tank is connected to a quantitative addition module and a filtering module, the quantitative addition module injects the fertilizer solution into the mixing tank, the filtering module injects water into the mixing tank, the agitator stirs and mixes the water and the fertilizer to form a nutrient solution, the heating wire heats the water and the fertilizer during the stirring process to improve the dissolution efficiency, the temperature sensor detects the heating temperature to avoid the heating temperature being too high, and the mixed nutrient solution enters the liquid supply pump through the spray pipe.

[0020] As a preferred IoT cloud platform irrigation control system of the present invention, the quantitative addition module includes a fertilizer storage tank, a quantitative pump and a flow meter. The flow meter is installed at the water outlet of the filter module to detect the water output. The liquid fertilizer is stored in the fertilizer storage tank. The amount of fertilizer to be added is calculated according to the preset fertilizer concentration requirement and the actual measured irrigation water volume. The quantitative pump injects the liquid fertilizer in the fertilizer storage tank into the mixing tank according to the amount of fertilizer to be added.

[0021] As a preferred embodiment of an Internet of Things cloud platform irrigation control system of the present invention, the automatic spraying system includes a water pressure regulating valve, a spray gun and a nozzle. The liquid outlet of the liquid supply pump injects the nutrient solution into the water pressure regulating valve, and the water pressure regulating valve adjusts the liquid outlet pressure. The regulated nutrient solution is sprayed into the soil through the spray gun and the nozzle to irrigate the farmland. A rotating component is provided on the spray gun, and the rotating component drives the spray gun and the nozzle to rotate 360 ​​degrees to perform uniform circular irrigation.

[0022] As a preferred IoT cloud platform irrigation control system of the present invention, the control module includes a communication module, a central processing unit, an input / output interface, a data storage module and a human-computer exchange interface. The communication module receives the irrigation strategy instructions obtained through analysis and calculation from the IoT cloud platform, and the central processing unit parses the received irrigation strategy instructions to understand the operations to be performed. According to the results of the analysis, specific control signals are sent to the water supply module, the filtration module, the water-fertilizer integrated system and the automatic spraying system through the input / output interface to coordinate the water supply module, the filtration module, the water-fertilizer integrated system and the automatic spraying system to work according to the specified time sequence and parameters.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention can accurately determine when irrigation is needed and how much water is needed by monitoring the water content in the soil, thereby avoiding excessive or insufficient irrigation. By detecting the pH value of the soil, it is understood whether the soil conditions are suitable for crop growth. If necessary, the soil pH value can be adjusted to facilitate the absorption of nutrients by crops. By detecting the content of key nutrients such as nitrogen, phosphorus, and potassium in the soil, it helps to determine the best time and amount of fertilization to avoid waste and environmental pollution caused by excessive fertilization. By monitoring the soil temperature, the impact of temperature changes on crop root activities can be understood, thereby adjusting the irrigation strategy to ensure that crops grow under suitable temperature conditions. By detecting the light intensity, the irrigation and fertilization plans are adjusted according to the light conditions to ensure that crops grow under sufficient photosynthesis conditions. By monitoring the rainfall, when natural precipitation is sufficient, irrigation can be reduced or even stopped to save water resources. By comprehensively analyzing various indicators such as soil moisture, pH value, nutrient content, temperature, light intensity, and rainfall, it is possible to achieve refined management of irrigation and fertilization, thereby improving crop yield and quality.

[0025] 2. The present invention automatically controls the start and stop of the water pump to ensure timely water supply when irrigation is needed without manual intervention, thereby improving the efficiency of irrigation. The water flow sensor and the water pressure sensor can monitor the water flow and water pressure in real time, accurately control the water supply according to actual needs, and avoid waste of water resources. The impurity filtering component can effectively remove large particles in the water and prevent these impurities from entering the irrigation system, thereby protecting the water pump and other subsequent equipment from damage. By filtering out impurities in the water, the wear on equipment such as the water pump is reduced, and the service life of the equipment is extended. The filtered water quality is purer, which helps to keep the irrigation system clean and avoid problems such as pipe blockage.

[0026] 3. The present invention removes various impurities in the water through multi-stage filtration to prevent these impurities from entering the irrigation system and causing blockage of key components such as nozzles and drippers. The filtration module can work continuously to ensure that the irrigation system is always in the best working state, thereby improving irrigation efficiency. The sand filter, screen filter, cyclone separator, laminated filter and backwash filter work together to ensure that the water quality meets the irrigation standard, which is beneficial for crops to absorb water and nutrients. By removing large particles of impurities in the water, the wear on the internal equipment of the irrigation system is reduced and the service life of the equipment is extended. The backwash filter can automatically remove impurities accumulated inside the filter, reducing the frequency of manual cleaning and maintenance costs. Through the Internet of Things technology, the working status of the filtration module can be remotely monitored, and the backwash program can be started as needed to achieve automated management.

[0027] 4. The present invention uses a quantitative addition module to accurately control the amount of fertilizer added according to the actual irrigation water volume, thereby avoiding excessive or insufficient fertilization and improving the utilization rate of fertilizers. The irrigation water volume is accurately controlled according to the actual needs of crops and soil conditions, reducing unnecessary water resource consumption. By accurately mixing water and fertilizers to form a nutrient solution, it is ensured that crops can obtain a balanced nutrient supply at different growth stages and promote healthy growth. The entire system has a high degree of automation, which reduces the need for manual operation and improves the efficiency of irrigation and fertilization. By accurately controlling the amount of fertilizer and water, the waste of fertilizer and water resources is reduced, and the production cost is reduced. Accurate fertilization reduces excessive use of fertilizers and reduces pollution to soil and groundwater. The fertilizer concentration and irrigation amount can be flexibly adjusted according to different crop types, growth stages and soil conditions.

[0028] 5. The present invention drives the spray gun and the nozzle to rotate 360 ​​degrees through the rotating assembly on the spray gun, ensuring that the irrigation evenly covers the entire spray range, avoiding the difference in crop growth caused by uneven irrigation. The spray range of each spray system is 60 meters, which can cover a large area of ​​farmland in a short time and improve the irrigation efficiency. The spray water pressure is adjusted to 0.7MPa by the water pressure regulating valve to ensure that the nutrient solution is sprayed with an appropriate pressure, which will neither cause waste due to excessive pressure nor cause insufficient irrigation due to insufficient pressure. Through automatic control, the spray amount can be adjusted according to actual needs, avoiding excessive irrigation and saving precious water resources. The evenly distributed nutrient solution ensures that crops can evenly absorb water and nutrients, and improves the utilization rate of fertilizers. The automated spray system reduces the need for manual operation, reduces the labor intensity of farmers, and improves work efficiency. Through the Internet of Things cloud platform, the operating parameters of the spray system, such as spray time, spray amount, etc., can be remotely monitored and adjusted to meet different irrigation needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the control system of the present invention. DETAILED DESCRIPTION

[0030] See also Figure 1 , an Internet of Things cloud platform irrigation control system, comprising:

[0031] Irrigation environment detection module: The irrigation environment detection module detects the environmental data of the irrigated land. The irrigation environment detection module includes a soil moisture sensor, a soil pH value sensor, a soil nutrient sensor, a soil temperature sensor, a light sensor and a rainfall sensor. The soil moisture sensor detects the water content in the soil, the soil pH value sensor detects the acidity and alkalinity of the soil, the soil nutrient sensor detects the nitrogen, phosphorus and potassium content in the soil, the soil temperature sensor detects the soil temperature, the light sensor detects the light intensity, and the rainfall sensor detects the rainfall.

[0032] By monitoring the water content in the soil, we can accurately determine when irrigation is needed and how much water is needed to avoid excessive or insufficient irrigation. By detecting the acidity and alkalinity of the soil, we can understand whether the soil conditions are suitable for crop growth. If necessary, we can adjust the soil pH value to facilitate crop absorption of nutrients. By detecting the content of key nutrients such as nitrogen, phosphorus, and potassium in the soil, we can help determine the best time and amount of fertilization to avoid waste and environmental pollution caused by excessive fertilization. By monitoring soil temperature, we can understand the impact of temperature changes on crop root activity, so as to adjust irrigation strategies to ensure that crops grow under suitable temperature conditions. By detecting light intensity, we can adjust irrigation and fertilization plans according to light conditions to ensure that crops grow under sufficient photosynthesis conditions. By monitoring rainfall, when natural precipitation is sufficient, we can reduce or even stop irrigation to save water resources. By comprehensively analyzing various indicators such as soil moisture, pH value, nutrient content, temperature, light intensity and rainfall, we can achieve refined management of irrigation and fertilization, thereby improving crop yield and quality.

[0033] Water supply module, the water supply module is connected to the water reservoir to extract water. The water supply module includes an inlet valve, an impurity filtering component, a water pump, an outlet valve, a water flow sensor, a water pressure sensor and a piping system. The piping system connects the inlet valve, the impurity filtering component, the water pump, the outlet valve, the water flow sensor and the water pressure sensor. The inlet valve controls the water flow into the water pump, the impurity filtering component filters the large particles in the water to prevent damage to the water pump. The water pump extracts water from the water reservoir, the outlet valve controls the water outlet, the water flow sensor detects the water flow inside the pipe, and the water pressure sensor detects the water pressure inside the piping system.

[0034] By automatically controlling the start and stop of the water pump, water can be supplied in time when irrigation is needed without manual intervention, thus improving the efficiency of irrigation. The water flow sensor and water pressure sensor can monitor the water flow and water pressure in real time, and accurately control the water supply according to actual needs to avoid waste of water resources. The impurity filter component can effectively remove large particles in the water and prevent these impurities from entering the irrigation system, thereby protecting the water pump and other subsequent equipment from damage. By filtering out impurities in the water, the wear on equipment such as the water pump is reduced, and the service life of the equipment is extended. The filtered water quality is purer, which helps to keep the irrigation system clean and avoid problems such as pipe blockage.

[0035] The filter module, the water inlet end of the filter module is connected to the water outlet end of the water supply module to filter impurities in the irrigation water. The filter module includes a sand filter, a screen filter, a cyclone separator, a laminated filter and a backwash filter. The sand filter is provided with quartz sand and gravel inside to filter large particles of impurities in the water. The screen filter is provided with a metal filter to filter small particles of impurities. The cyclone separator separates suspended matter in the water by centrifugal force. The laminated filter is provided with several annular water filter elements to filter tiny impurities. The backwash filter is connected to the backwash water filter. The water inlet of the sand and gravel filter is connected to the water supply module to perform preliminary filtration on the water, the water outlet of the sand and gravel filter is connected to the screen filter, the water outlet of the screen filter is connected to the cyclone separator, and the water outlet of the cyclone separator is connected to the backwash filter to filter the water multiple times to prevent impurities in the water from clogging the automatic spraying system. When impurities need to be cleaned, the backwash water pump injects cleaning water into the backwash filter, and the backwash filter injects water into the stacked filter, cyclone separator, screening filter and sand and gravel filter in turn. The sewage discharge end of the sand and gravel filter is connected to a sewage discharge solenoid valve to discharge the sewage.

[0036] Various impurities in the water are removed through multi-stage filtration to prevent these impurities from entering the irrigation system and causing blockage of key components such as sprinklers and drippers. The filtration module can work continuously to ensure that the irrigation system is always in the best working condition, thereby improving irrigation efficiency. The sand filter, screen filter, cyclone separator, laminated filter and backwash filter work together to ensure that the water quality meets the irrigation standards, which is beneficial for crops to absorb water and nutrients. By removing large particles of impurities in the water, the wear on the internal equipment of the irrigation system is reduced and the service life of the equipment is extended. The backwash filter can automatically remove impurities accumulated inside the filter, reducing the frequency of manual cleaning and maintenance costs. Through the Internet of Things technology, the working status of the filtration module can be remotely monitored, and the backwash program can be started as needed to achieve automated management.

[0037] The water-fertilizer integrated system, the water inlet of the water-fertilizer integrated system is connected with the water outlet of the filtering module, so that the filtered irrigation water enters the water-fertilizer integrated system, the fertilizer feeding port of the water-fertilizer integrated system is connected with the quantitative addition module, the quantitative addition module adjusts the amount of fertilizer added according to the amount of water added, the water-fertilizer integrated system includes a mixing tank, the mixing tank is respectively equipped with an agitator, a heating wire, a temperature sensor, a spray pipe and a liquid supply pump, the mixing tank is connected to the quantitative addition module and the filtering module, the quantitative addition module injects the fertilizer solution into the mixing tank, the filtering module injects water into the mixing tank, and the agitator stirs and mixes the water and fertilizer , forming a nutrient solution. During the stirring process, the electric heating wire heats the water and fertilizer to improve the dissolution efficiency. The temperature sensor detects the heating temperature to avoid excessive heating temperature. The mixed nutrient solution enters the liquid supply pump through the spray pipe. The quantitative addition module includes a fertilizer storage tank, a quantitative pump and a flow meter. The flow meter is installed at the water outlet of the filter module to detect the water output. The fertilizer storage tank stores liquid fertilizer. According to the preset fertilizer concentration requirements and the actual measured irrigation water volume, the amount of fertilizer to be added is calculated. The quantitative pump injects the liquid fertilizer in the fertilizer storage tank into the mixing tank according to the amount of fertilizer to be added.

[0038] The quantitative addition module can accurately control the amount of fertilizer added according to the actual irrigation water volume, avoiding over-fertilization or under-fertilization and improving the utilization rate of fertilizers. The irrigation water volume can be accurately controlled according to the actual needs of crops and soil conditions, reducing unnecessary water resource consumption. By accurately mixing water and fertilizers to form a nutrient solution, it is ensured that crops can obtain a balanced nutrient supply at different growth stages and promote healthy growth. The whole system has a high degree of automation, which reduces the need for manual operation and improves the efficiency of irrigation and fertilization. By accurately controlling the amount of fertilizer and water, the waste of fertilizer and water resources is reduced, and the production cost is reduced. Accurate fertilization reduces excessive use of fertilizers and reduces pollution to soil and groundwater. The fertilizer concentration and irrigation amount can be flexibly adjusted according to different crop types, growth stages and soil conditions.

[0039] An automated spraying system, the liquid inlet end of the automated spraying system is connected to the liquid outlet end of the water-fertilizer integrated system, and the mixed water and fertilizer are sprayed for irrigation. There are several automated spraying systems, and the spraying range is 60M, and the spraying water pressure is 0.7MPa. The automated spraying system includes a water pressure regulating valve, a spray gun and a nozzle. The liquid outlet end of the liquid supply pump injects the nutrient solution into the water pressure regulating valve, and the water pressure regulating valve adjusts the liquid outlet pressure. The adjusted nutrient solution is sprayed into the soil through the spray gun and nozzle to irrigate the farmland. A rotating component is provided on the spray gun, and the rotating component drives the spray gun and nozzle to rotate 360 ​​degrees for uniform circular irrigation.

[0040] The rotating assembly on the spray gun drives the spray gun and the nozzle to rotate 360 ​​degrees to ensure that irrigation evenly covers the entire spray range, avoiding crop growth differences caused by uneven irrigation. The spray range of each spray system is 60 meters, which can cover a large area of ​​farmland in a short time and improve irrigation efficiency. The spray water pressure is adjusted to 0.7MPa by the water pressure regulating valve to ensure that the nutrient solution is sprayed at an appropriate pressure, which will neither cause waste due to excessive pressure nor cause insufficient irrigation due to insufficient pressure. Through automatic control, the spray volume can be adjusted according to actual needs, avoiding excessive irrigation and saving precious water resources. The evenly distributed nutrient solution ensures that crops can evenly absorb water and nutrients and improves the utilization rate of fertilizers. The automated spray system reduces the need for manual operation, reduces farmers' labor intensity and improves work efficiency. Through the Internet of Things cloud platform, the operating parameters of the spray system, such as spray time and spray volume, can be remotely monitored and adjusted to meet different irrigation needs.

[0041] The IoT cloud platform receives the detection data from the irrigation environment detection module, stores and analyzes the data, and then automatically adjusts the irrigation strategy based on the analysis data, preset rules and AI algorithms. The IoT cloud platform signal is connected to a mobile terminal, through which the data can be remotely viewed and the preset rules and irrigation strategies can be adjusted.

[0042] Control module, the control module receives the irrigation strategy from the IoT cloud platform, and controls the water supply module, the filtration module, the water-fertilizer integration system and the automatic sprinkler system according to the irrigation strategy. The control module includes a communication module, a central processing unit, an input-output interface, a data storage module and a human-computer exchange interface. The communication module receives the irrigation strategy instructions obtained through analysis and calculation from the IoT cloud platform. The central processing unit parses the received irrigation strategy instructions, understands the operations to be performed, and sends specific control signals to the water supply module, the filtration module, the water-fertilizer integration system and the automatic sprinkler system through the input-output interface according to the results of the analysis, so as to coordinate the water supply module, the filtration module, the water-fertilizer integration system and the automatic sprinkler system to work according to the specified time sequence and parameters.

[0043] When water and fertilizer irrigation is carried out, the soil moisture sensor, soil pH sensor, soil nutrient sensor, soil temperature sensor, light sensor and rainfall sensor begin to collect environmental data of the irrigated land, and upload the detected data to the control module through the input and output interface.

[0044] The control module uploads the collected data to the IoT cloud platform through the built-in communication module. The IoT cloud platform receives the data from the irrigation environment detection module, stores and analyzes it, generates a specific irrigation strategy based on the analysis results, preset rules and AI algorithms, and sends the instructions back to the control module through the communication module.

[0045] The control module receives irrigation strategy instructions from the IoT cloud platform. The central processor parses the instructions, determines the operations that need to be performed, and sends specific control signals to the water supply module, filtration module, water-fertilizer integrated system and automatic sprinkler system through the input and output interfaces.

[0046] The water supply module starts the water pump according to the control instructions to draw water from the water reservoir. The impurity filter component filters large particles in the water. The water outlet valve controls the water flow. The water flow sensor and water pressure sensor monitor the water flow and water pressure. The filter module performs multi-stage filtration on the water provided by the water supply module to ensure clean water quality. The backwash filter is started when necessary to remove accumulated impurities.

[0047] The filtered water enters the water-fertilizer integrated system. The quantitative addition module adjusts the amount of fertilizer added according to the water volume to ensure that the nutrient solution concentration is appropriate. The agitator mixes the water and fertilizer evenly to form a nutrient solution. The nutrient solution is sent to the liquid supply pump through the spray pipe. The water pressure regulating valve adjusts the spray water pressure to 0.7MPa. The nutrient solution is sprayed into the field through the spray gun and nozzle. The rotating assembly on the spray gun ensures uniform coverage.

[0048] The control module continuously monitors the working status of each module and uploads the data to the IoT cloud platform. If any abnormal situation is found, the irrigation strategy will be adjusted or the user will be notified in time. The user can view the data remotely through the mobile terminal and adjust the preset rules and irrigation strategies according to the actual situation.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An Internet of Things cloud platform irrigation control system, characterized in that: include: An irrigation environment detection module, which detects environmental data of irrigated land; A water supply module, the water supply module is connected to the water reservoir to extract water; A filter module, wherein the water inlet of the filter module is connected to the water outlet of the water supply module to filter impurities in the irrigation water; A water-fertilizer integrated system, wherein the water inlet of the water-fertilizer integrated system is connected to the water outlet of the filtering module, so that the filtered irrigation water enters the water-fertilizer integrated system, and the fertilizer feeding port of the water-fertilizer integrated system is connected to the quantitative addition module, and the quantitative addition module adjusts the amount of fertilizer added according to the amount of water added; An automatic spraying system, wherein the liquid inlet of the automatic spraying system is connected to the liquid outlet of the water-fertilizer integrated system, and the mixed water and fertilizer are sprayed for irrigation. The number of automatic spraying systems is several, and the spraying range is 60M, and the spraying water pressure is 0.7MPa; An IoT cloud platform receives detection data from the irrigation environment detection module, stores and analyzes the data, and then automatically adjusts the irrigation strategy based on the analysis data, preset rules, and AI algorithms. The IoT cloud platform signal is connected to a mobile terminal, and the data can be remotely viewed and preset rules and irrigation strategies can be adjusted through the mobile terminal; Control module: The control module receives the irrigation strategy from the IoT cloud platform and controls the water supply module, filtration module, water-fertilizer integrated system and automatic spraying system according to the irrigation strategy.

2. The IoT cloud platform irrigation control system according to claim 1, characterized in that: The irrigation environment detection module includes a soil moisture sensor, a soil pH value sensor, a soil nutrient sensor, a soil temperature sensor, a light sensor and a rainfall sensor.

3. The IoT cloud platform irrigation control system according to claim 2, characterized in that: The soil moisture sensor detects the water content in the soil, the soil pH sensor detects the acidity and alkalinity of the soil, the soil nutrient sensor detects the nitrogen, phosphorus and potassium content in the soil, the soil temperature sensor detects the soil temperature, the light sensor detects the light intensity, and the rainfall sensor detects the rainfall.

4. The IoT cloud platform irrigation control system according to claim 1, characterized in that: The water supply module includes an inlet valve, an impurity filtering component, a water pump, an outlet valve, a water flow sensor, a water pressure sensor and a piping system. The piping system connects the inlet valve, the impurity filtering component, the water pump, the outlet valve, the water flow sensor and the water pressure sensor. The inlet valve controls the water flow into the water pump, the impurity filtering component filters large particles in the water to prevent damage to the water pump, the water pump extracts water from the water reservoir, the outlet valve controls the water outlet, the water flow sensor detects the water flow inside the pipe, and the water pressure sensor detects the water pressure inside the piping system.

5. The IoT cloud platform irrigation control system according to claim 1, characterized in that: The filtration module includes a sand filter, a screen filter, a cyclone separator, a laminated filter and a backwash filter. The sand filter is provided with quartz sand and gravel inside to filter large particles of impurities in the water. The screen filter is provided with a metal filter screen inside to filter small particles of impurities. The cyclone separator separates suspended matter in the water by centrifugal force. The laminated filter is provided with a plurality of annular water filter elements inside to filter tiny impurities. The backwash filter is connected to a backwash water pump.

6. The IoT cloud platform irrigation control system according to claim 5, characterized in that: The water inlet end of the sand and gravel filter is connected to the water supply module to perform preliminary filtering on the water, the water outlet end of the sand and gravel filter is connected to the screen filter, the water outlet end of the screen filter is connected to the cyclone separator, and the water outlet end of the cyclone separator is connected to the backwash filter to filter the water multiple times to prevent impurities in the water from clogging the automatic spraying system. When impurities need to be cleaned, the backwash water pump injects cleaning water into the backwash filter, and the backwash filter injects water into the stacked filter, the cyclone separator, the screening filter and the sand and gravel filter in sequence. The sewage discharge end of the sand and gravel filter is connected to a sewage discharge solenoid valve to discharge the sewage.

7. The IoT cloud platform irrigation control system according to claim 1, characterized in that: The water-fertilizer integrated system comprises a mixing tank, on which are respectively installed an agitator, an electric heating wire, a temperature sensor, a spray pipe and a liquid supply pump; the mixing tank is connected to a quantitative addition module and a filtering module; the quantitative addition module injects a fertilizer solution into the mixing tank; the filtering module injects water into the mixing tank; the agitator stirs and mixes water and fertilizer to form a nutrient solution; during the stirring process, the electric heating wire heats the water and fertilizer to improve the dissolution efficiency; the temperature sensor detects the heating temperature to avoid the heating temperature being too high; and the mixed nutrient solution enters the liquid supply pump through the spray pipe.

8. The IoT cloud platform irrigation control system according to claim 7, characterized in that: The quantitative addition module includes a fertilizer storage tank, a quantitative pump and a flow meter. The flow meter is installed at the water outlet of the filter module to detect the water output. The fertilizer storage tank stores liquid fertilizer. According to the preset fertilizer concentration requirement and the actual measured irrigation water volume, the required amount of fertilizer to be added is calculated. The quantitative pump injects the liquid fertilizer in the fertilizer storage tank into the mixing tank according to the required amount of fertilizer to be added.

9. The IoT cloud platform irrigation control system according to claim 8, characterized in that: The automatic spraying system includes a water pressure regulating valve, a spray gun and a nozzle. The liquid outlet of the liquid supply pump injects the nutrient solution into the water pressure regulating valve. The water pressure regulating valve adjusts the liquid outlet pressure. The adjusted nutrient solution is sprayed into the soil through the spray gun and the nozzle to irrigate the farmland. A rotating component is provided on the spray gun. The rotating component drives the spray gun and the nozzle to rotate 360 ​​degrees to perform uniform circular irrigation.

10. The IoT cloud platform irrigation control system according to claim 1, characterized in that: The control module includes a communication module, a central processing unit, an input and output interface, a data storage module and a human-computer exchange interface. The communication module receives the irrigation strategy instructions obtained through analysis and calculation from the Internet of Things cloud platform. The central processing unit parses the received irrigation strategy instructions and understands the operations to be performed. According to the results of the analysis, the central processing unit sends specific control signals to the water supply module, the filtration module, the water-fertilizer integration system and the automatic spraying system through the input and output interface to coordinate the water supply module, the filtration module, the water-fertilizer integration system and the automatic spraying system to work according to the specified time sequence and parameters.

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