515 results about "Controller (irrigation)" patented technology

The invention discloses an intelligent soil moisture content monitoring and precise irrigation linkage system, and relates to the technical field of irrigation. Key parameters such as moisture content, temperature, humidity and conductivity of soil are obtained in real time through a soil moisture content monitoring module, processed by a data acquisition and transmission module and transmitted to a control center; the control center carries out deep analysis and evaluation on the soil moisture condition through the edge computing gateway and the cloud decision controller, an accurate irrigation control instruction is generated, the irrigation control execution module carries out accurate regulation and control on irrigation equipment according to the instruction, and reasonable irrigation of a farmland is achieved. The system can comprehensively master the moisture condition of farmland soil, provides data support for precise irrigation, improves the precision and efficiency of irrigation, saves water resources, is intelligent and high in automation degree, can reduce manual intervention, reduces the labor cost, and improves the stability and reliability of irrigation at the same time.

The invention relates to the technical field of agricultural intelligent irrigation, in particular to an intelligent irrigation control system and method based on meteorological environment acquisition, and the system comprises a sensing layer, a transmission layer, a control layer, a cloud layer and an execution layer. Then meteorological environment data collected by the sensing layer is transmitted to the control layer through a wireless transmitting module and a wireless receiving module, and a controller of the control layer is integrated with an edge computing unit, a communication unit and a decision-making unit; the problems that an existing agricultural meteorological monitoring and irrigation control system is high in network transmission load coefficient, and the edge computing capability of sensor nodes cannot be effectively utilized; the problem that an irrigation control algorithm based on a static threshold mechanism or a single statistical model lacks adaptive processing of rainfall time sequence prediction and dynamic response ability of specific requirements of crop growth stages is solved.

The invention relates to the technical field of intelligent agriculture and precise irrigation, in particular to an intelligent control system for agricultural irrigation. Comprising a water-saving valve module, a sensing layer module, a control layer module, an execution layer module and a data and application layer module, and the water-saving valve module is used for achieving microsecond level flow regulation and control through piezoelectric ceramic driving and energy recovery and integrating a self-maintenance function. According to the invention, the LSTM network and the Duelling DQN algorithm are utilized to accurately discriminate the soil type and formulate an extreme weather coping scheme, dynamic optimization of an irrigation strategy is realized based on low-power-consumption edge calculation and an intelligent control algorithm, the adaptability and decision accuracy of the system are greatly improved, multiple advanced technologies are integrated, and the system is suitable for large-scale popularization and application. Comprising a magneto-rheological buffer, a TSN valve controller, an SMA emergency pressure release valve and a variable frequency water pump driver, pressure balance of a pipe network, high-precision synchronization of valves and safe treatment of sudden failures are ensured, and the stability and flexibility of an irrigation system are comprehensively improved.

The invention discloses an agricultural irrigation control method and system, and relates to the technical field of irrigation control, and the method comprises the following steps: constructing a crop water demand model based on the fusion of crop physiological sensing data and a data driving model, and outputting a target irrigation flow; calculating a control error between the target irrigation flow and the actually acquired flow, and generating a control signal through a model prediction control strategy; inputting a static mapping model fitted by a Sigmoid function, and superposing the output of a dynamic correction model driven by state sensing data to generate a final driving signal; feedback data is collected, a driving signal and the feedback data are subjected to closed-loop comparison, and irrigation control strategy parameters are adaptively optimized through a reinforcement learning controller; according to the method, the crop physiological sensing data and the data driving model are fused, the space and time sequence feature fused water demand model is dynamically constructed, and the problems that agricultural irrigation cannot be accurately controlled and the irrigation strategy is rigid are solved in combination with a static and dynamic composite control mapping mechanism.

The invention discloses a garden partition intelligent water-saving irrigation regulation and control system based on the Internet of Things, and belongs to the field of irrigation regulation and control systems. According to the system, a basic water demand model containing static characteristics of plants, soil and the like is established for each subarea through a central processing controller, real-time environment data and weather forecast are fused, and future irrigation water demand and optimal time are calculated in a prospective mode. The core innovation of the method lies in that after irrigation, the system performs feedback iterative optimization on a basic water demand model by comparing the efficiency deviation of the actual change and the predicted change of the soil humidity to form a self-learning closed loop. According to the method, conversion from passive response to active prediction is achieved, the method has the advantages of being accurate, prospective and self-adaptive, the method can continuously adapt to environmental changes, and the intelligent level and the water saving effect of irrigation are remarkably improved.

The invention relates to the technical field of agricultural irrigation, and discloses a high-efficiency water-saving intelligent drip irrigation system which comprises a soil humidity sensor used for monitoring the humidity level in soil in real time; the meteorological sensor is used for monitoring environment temperature, humidity, wind speed, wind direction and rainfall; the central controller is connected with the soil humidity sensor and the meteorological sensor and used for receiving and processing sensor data and dynamically adjusting the irrigation area and the irrigation amount based on the data; and the partition control valves are mounted on branch nodes of the irrigation pipe network, are connected with the central controller and are used for controlling the water flow of each irrigation area according to instructions of the central controller. By monitoring soil humidity and meteorological conditions in real time, the system can accurately control irrigation time and water volume according to actual requirements. According to the demand-driven irrigation strategy, waste of water resources is greatly reduced, it is ensured that irrigation is conducted at the most needed time, only the needed water is supplied, and the use efficiency of the water resources is further optimized.

A tool for management of irrigation schedules is provided. The tool can include a controller that can communicate with an irrigation system to build and implement automatic irrigation schedules using sensed data about the environment, historical data, and manually input data. These schedules can be optimized for capital cost, lifetime cost, farm revenue, water use, and energy efficiency of the irrigation system. The schedule can be adjusted based on sensed data and / or manual inputs to ensure optimal use of resources. In some embodiments, the controller can communicate the schedule to a user via electronic communication to implement irrigation. In such embodiments, the user can interface with the controller to confirm directions to implement irrigation and receive additional directions.

The utility model relates to a saline-alkali soil improvement system which comprises a monitoring mechanism, a salt discharging mechanism and an irrigation mechanism, the monitoring mechanism is erected above soil, the salt discharging mechanism and the irrigation mechanism are both buried in the soil, the irrigation mechanism is buried above the salt discharging mechanism, and the irrigation mechanism is communicated with a water and fertilizer integrated tank; the monitoring mechanism comprises a photovoltaic panel and a controller, the photovoltaic panel is in transmission connection with the photosensitive sensor driving motor, the photovoltaic panel is electrically connected with the controller and the irrigation mechanism, and the controller is in communication connection with the irrigation mechanism and the detection equipment. The technical problems that long-term effectiveness and sustainable development are difficult to achieve, water resources are wasted, and soil secondary salinization is caused due to the fact that drainage is not timely are solved.

The invention provides a water-saving system coupling photovoltaic panel cleaning and vegetation irrigation and a control method of the water-saving system, and belongs to the technical field of photovoltaic power generation. Comprising a water collecting mechanism used for collecting water on the surface of a photovoltaic panel; the water storage mechanism is used for storing the collected water; the pressure pump is connected with the water storage mechanism and used for injecting water into the outer pump; the cleaning mechanism is connected with the pressure pump through a pipeline and used for spraying water to clean the photovoltaic panel, and a first valve is arranged on the pipeline; the irrigation mechanism is connected with the pressure pump through a pipeline and used for spraying water to irrigate vegetation, and a second valve is arranged on the pipeline; the voltage sensor is used for detecting a voltage value output by the photovoltaic panel; the humidity sensor is used for detecting the humidity value of the soil; the light intensity sensor is used for detecting illumination intensity; and the controller controls the booster pump, the first valve and the second valve to work based on the voltage value, the humidity value and the illumination intensity. The overall structure is simple, the photovoltaic panel can be cleaned in time, the generating capacity is improved, water resources are saved, and rapid vegetation restoration is promoted.

The invention discloses a green ecological energy-saving irrigation roof system and a using method thereof, and relates to the technical field of building roofs. A green ecological energy-saving irrigation roof system comprises a root blocking waterproof layer, a blind ditch structure layer, a non-woven fabric filter layer, a planting layer and a vegetation layer which are arranged on a roof from bottom to top, a rainwater collecting device is arranged in the blind ditch structure layer, an irrigation device is arranged on the planting layer, the rainwater collecting device is communicated with a water storage tank, and the water storage tank is communicated with the irrigation device through a water suction pump; a soil humidity sensor is arranged in the planting layer, the soil humidity sensor and the water suction pump are both connected with the controller, and the solar power supply device is used for supplying power to the water suction pump, the soil humidity sensor and the controller. The solar power supply device is arranged on the roof and used for supplying power to electric equipment in the whole roof system, power supply depending on mains supply is avoided, near-zero-energy-consumption operation is achieved, the building capacity and energy consumption self-balance requirements are met, and the purposes of environment friendliness and energy conservation are achieved.

The invention discloses a method for interplanting amorphophallus bulbifer through photovoltaic shading. The method comprises the steps that interplanting areas are established between photovoltaic array lines; the interplanting area is divided into a fixed shading area and a variable light-transmitting area according to the projection range of the photovoltaic panels, the fixed shading area is located in the area under the photovoltaic panels, and the variable light-transmitting area is located in a light-transmitting zone between the adjacent photovoltaic panels; planting furrows are formed in the fixed shading area according to the line spacing of 40-50 cm; selecting amorphophallus bulbifer tubers, and performing field planting on the planting bed; a sunshade net sliding rail system driven by a stepping motor is arranged in the variable light-transmitting area, an illumination intensity sensor is installed on a sliding rail, the sensor is connected with a controller, and the controller automatically adjusts the horizontal displacement of the sunshade net every day according to a solar altitude calculation model and real-time illumination data; and establishing an intelligent drip irrigation system. According to the method, a stable shading environment and appropriate soil humidity can be provided for the amorphophallus bulbifer, manual operation is reduced, the automation level of the interplanting process is improved, and the specific requirements of crops for the growth environment are met.

A method and apparatus for site-specific application of a fluid additive, with or without irrigation water, wherein a center pivot or lateral move irrigation system is utilized for a dedicated additive spraying system. Said spraying system including an additive pumping apparatus with a pump controller in communication with an irrigation system position sensor, and an additive pump in fluid communication with a reservoir of additive and a plurality of flow control valves. Said flow control valves each in fluid communication with an additive carrying conduit, said conduit terminating with an end-portion of conduit with spray nozzle set. Each said end-portion with spray nozzle set configured to apply additive to a ground surface below said end-portion and within the boundaries of polygon shaped areas of a field based on the position of the pipe spans, said position provided to the pump controller by the irrigation system position sensor.

The invention relates to the field of landscaping management automation, and discloses an intelligent irrigation method and system for landscaping, a controller and a sprayer. Constructing a soil moisture dynamic equation and a plant growth model according to the plant information and the environment information; based on the dynamic equation and the growth model, nozzle opening time is calculated; controlling the nozzle to open and close according to the opening time; and dynamically adjusting the opening time of the nozzle based on the environment information after the nozzle is opened. According to the invention, the soil moisture dynamic equation is constructed based on the soil humidity and weather change, and the nozzle opening time is calculated based on the dynamic equation and the growth model, so that efficient and intelligent irrigation control is realized. Compared with an existing timing automatic irrigation system, water resource waste caused by fixed-period watering is effectively avoided, meanwhile, the accuracy and timeliness of water supply are ensured, the modern requirements for water saving and precise maintenance are met, and remarkable environmental and economic benefits are achieved.

The invention relates to the field of intelligent greenhouse management, and particularly discloses an intelligent greenhouse management system based on computer vision and deep learning, and the system comprises a data collection module which obtains environment data and soil data in a greenhouse in real time; the image acquisition module is used for acquiring crop growth images; the core controller preprocesses the data acquired by the data acquisition module and the image acquisition module and uploads the data to the cloud database; the computer vision and deep learning analysis module is used for identifying crop types and pest and disease damage conditions based on the crop images; the water-fertilizer control unit comprises an intelligent control module, a water-fertilizer all-in-one machine and a drip irrigation system; the user interaction module provides remote monitoring and control functions for a user; according to the system and the method, the condition of economic loss caused by the fact that crop diseases and insect pests cannot be correctly treated due to insufficient experience in traditional agriculture is overcome, environmental visualization is realized, a farmer can conveniently monitor the greenhouse in real time, precise irrigation and fertilization are realized, the agricultural production efficiency is improved, and resource waste is reduced.

The invention discloses an intelligent ditch gate dam self-adaptive adjustment method based on the Internet of Things, relates to the technical field of drainage control, and provides a set of integrated method of multi-source data fusion, predictive diagnosis and automatic fault tolerance for fault prevention and disposal of a gate dam execution mechanism in farmland irrigation. High-quality sensing data is obtained in real time through edge calculation and a wavelet noise reduction technology, and potential anomalies are marked in time; secondly, analyzing the state of an execution mechanism by combining a historical fault record and a health model, and sending out a maintenance suggestion in advance; if a serious fault occurs, the local controller automatically starts secondary adjustment and emergency linkage to temporarily compensate downstream water supply or flood diversion; and finally, the central dispatching center iteratively updates a dispatching strategy by using a global collaborative optimization and self-learning mechanism, and the system reliability and the resource utilization efficiency are enhanced. Therefore, closed-loop management of the gate dam execution mechanism is realized, and stable operation of large-scale farmland irrigation under load and outdoor environments is ensured.

The intelligent water-saving and energy-saving vegetable greenhouse comprises a controller, a greenhouse roof and an initial rainwater discarding device, a plurality of rainwater guiding grooves are formed in the greenhouse roof, the initial rainwater discarding device comprises a rainwater container and a U-shaped pipe, a filtering cavity is formed in the top of the rainwater container and communicates with the rainwater container through a water collecting opening, one side of the filtering cavity communicates with the rainwater guiding grooves, and the other side of the filtering cavity communicates with the U-shaped pipe; one end of the U-shaped pipe is communicated with the bottom of the rainwater container, the other end of the U-shaped pipe is a drainage end, the water flow of the drainage end of the U-shaped pipe is smaller than that of the water collecting opening, the water collecting opening is connected with a floating ball through a rope, and the radial size of the floating ball is larger than the radial size of the water collecting opening; a drip irrigation pipeline is arranged in the greenhouse and communicated with the water storage tank through a water pump, and the controller is connected with the water pump. According to the greenhouse, the rainwater collection efficiency and cleanliness can be improved, the integrated design of rainwater collection, automatic irrigation and temperature and humidity adjustment is achieved, and the integration, the environmental protection property and the resource utilization efficiency of the greenhouse are improved.

The invention discloses a variable irrigation control method for a large sprinkler, which comprises the following steps of: installing a variable irrigation controller on each sprinkler head of the sprinkler to adjust the irrigation amount of the sprinkler head, forming a network by adopting wireless communication among the variable irrigation controllers, and adjusting the irrigation amount of the sprinkler head through a valve opening degree adjusting algorithm built in the variable irrigation controller. The opening degree of the valve is adjusted in real time, and the water yield of the spray head is rapidly stabilized on the target water yield required by an irrigation prescription map. The variable irrigation controller is used for controlling the valves to adjust the flow of each nozzle of the sprinkler, meanwhile, a cooperative control network is formed among the valves, the opening degree of each valve is calculated through an artificial intelligence algorithm, and therefore variable irrigation of the sprinkler with the valves independently adjusted is achieved.

The system comprises a water storage container and a control system, a partition plate and a moving plate connected with a driving mechanism are arranged in the water storage container, a sensor system of the control system is used for monitoring state parameters of the moving plate and the water supply flow of the water storage container, and after the target rainfall intensity is determined, the target rainfall intensity is determined; the controller is used for obtaining state estimation of the moving plate based on the state space model and the state parameters of the moving plate, calculating real-time rainfall intensity by combining the water supply flow of the water storage container, and dynamically controlling the driving mechanism to operate in a closed-loop mode with the target of reducing the error between the target rainfall intensity and the real-time rainfall intensity. The movable plate is driven to move relative to the partition plate to adjust the water outlet area, rainfall holes of the water storage container discharge water to simulate rainfall for an irrigation test, dynamic response continuous adjustment of simulated rainfall intensity can be achieved, natural rainfall scenes of different rainfall intensities and modes can be reproduced in a high-precision mode, a reliable test platform is provided for agricultural irrigation research, design is flexible, and the test efficiency is high. The operability is high.

The utility model belongs to the technical field of agricultural irrigation, and discloses a water and fertilizer integrated drip irrigation system for traditional Chinese medicinal materials, which comprises a control unit, a user side, a reservoir, a power supply device, a fertilizing device, a filtering device and a main pipe network, a plurality of branch pipes are arranged on the main pipe network, and each branch pipe is laid along the ground of a corresponding cultivation area. Traditional Chinese medicinal materials are planted in the cultivation area, and a plurality of moisture sensors are arranged in the cultivation area; the water storage pool is used for collecting a water source, photovoltaic power supply is achieved, fertilization and irrigation are intelligently regulated and controlled, through fine filtering, electromagnetic valve control and intelligent ball valve layout, it is ensured that water and fertilizer are accurately dripped to the roots of traditional Chinese medicinal materials in a drip mode, the system adapts to complex terrains, the equipped moisture sensor monitors soil humidity in real time, the main controller is in linkage with a user side, and remote intelligent management is achieved. The device not only saves water and fertilizer, improves the yield and quality of traditional Chinese medicinal materials, but also is widely suitable for various planting areas, and promotes agricultural sustainable development.

The invention belongs to the technical field of hydrological detection, and particularly relates to a double-tipping-bucket rain gauge capable of preventing blocking and detecting blocking and an auxiliary device. The rain gauge is provided with a first anti-blocking net and a net cover filtering column in a rain bearing device; a second anti-blocking net is arranged in the funnel; detection probes are arranged in the two through holes in the bottom of the rain bearing device, and the bottoms of the detection probes are connected with a controller through wires. The rain gauge further comprises an auxiliary device which is used for assisting installation and disassembly of the detection assembly. And a mounting frame is also arranged and is used for supporting and mounting the rain gauge. According to the invention, the arrangement of the three-stage filter screen effectively prevents blockage, and the rainfall gauge can detect the precipitation amount timely and accurately. The problem that a traditional rain gauge cannot efficiently detect blockage is solved, blockage points are accurately judged, the maintenance and repair efficiency is improved, and the rain gauge is widely applied to weather stations, intelligent irrigation areas, urban drainage systems and the like.

The utility model relates to the field of vegetable drip irrigation equipment, in particular to a vegetable water and fertilizer integrated drip irrigation device which comprises a liquid storage tank, a fertilizer tank, a flow guide pipe, a first meter, a water inlet pipe, a second meter, a drip irrigation pipe, a hydraulic controller, a master control module and a soil tacheometer, according to the vegetable water and fertilizer integrated drip irrigation device, the first meter and the second meter are arranged on the outer side of the joint of the fertilizer tank and the liquid storage tank as well as the outer side of the joint of the water inlet pipe and the liquid storage tank of the existing vegetable water and fertilizer integrated drip irrigation device respectively, so that the amount of water and fertilizer can be accurately controlled; detection information can be transmitted to the master control module for comprehensive analysis, then the master control module is triggered to automatically control the water and fertilizer proportion at the first meter and the second meter, accurate proportioning of water and fertilizer is achieved, the quality and growth stability of vegetables are guaranteed, drip irrigation is carried out in an accurate proportioning mode, the situation of excessive fertilization is not likely to be caused, and the work efficiency is improved. And more resources are saved.

The invention relates to the technical field of plant planting, particularly discloses integrated landscape type planting equipment and a cultivation method, and solves the problems of more resource and energy waste and insufficient energy conservation of planting equipment in the prior art. The planting equipment comprises a three-dimensional planting assembly used for allowing plants to grow, an irrigation pipeline system used for allowing liquid for plant irrigation to pass through and a liquid supply system used for blending and supplying the liquid needed by the plants, and the liquid supply system is connected with the three-dimensional planting assembly. The irrigation pipeline system is connected between the liquid supply system and the three-dimensional planting assembly. The planting cultivation method comprises the steps of substrate selection, water source preparation, sensor calibration, plant seed broadcast sowing, soil covering, controller starting, automatic monitoring and environmental parameter adjustment, nutrient solution blending and adding into a water tank and the like. The device can be applied to household planting equipment or industrial batch planting equipment, and is energy-saving, efficient and environment-friendly.

The invention provides a water and fertilizer on-line accurate detection and irrigation control system which is used for irrigation of hardened water channels in low-latitude plateau areas. Comprising a cloud box, a data acquisition module, an image recognition module, a system PLC controller and a remote control and system alarm. The cloud box establishes a real-time and historical database based on the data acquired by the data acquisition module, further comprises an irrigation volume model and a crop growth period moisture management model, and makes and outputs an irrigation decision based on the irrigation volume and moisture management model; the data acquisition module is used for acquiring soil or matrix data and field water level; the image recognition module collects crop growth images to enter different period schemes; and the PLC receives an irrigation decision or controls a lifting telescopic rod or a water gate decision. According to the system, large-scale intelligent planting of crops is achieved, a large amount of manpower is saved, the problem that the low-latitude plateau green efficient water-saving irrigation technology lacks is solved, and the crop production amount is greatly increased.

The invention discloses a control system based on a GPS (Global Positioning System) and a center pivot type sprinkling irrigation machine land angle arm. The control system comprises a center pivot tower and a rotating pivot fixed at the center of an irrigation plot; the central pivot type sprinkling machine serves as a main span body, and the starting end of the central pivot type sprinkling machine is connected with the central pivot tower; the land angle arm straddle body is mounted at the tail end of the central pivot type sprinkling machine; the landing angle arm controller comprises a GPS positioning system and a wheel control system, and the wheel control system calculates and detects the wheel angle in real time according to the wheel zero position; the base station provides position information for the anchor arm controller; the wireless communication LoRa module is used for sending the position information of the base station to a foot margin arm controller through the wireless communication LoRa module and providing a centimeter-level high-precision positioning information differential source for a GPS (Global Positioning System); and the screen module is used for displaying the running state and track information of the anchor arm in real time, setting parameters of the anchor arm and alarming fault information. The method is convenient to operate, can plan the track of the anchor arm, avoids obstacles in track planning, and realizes good operation driving.

The invention provides a condensate water irrigation system based on renewable energy sources, belongs to the technical field of irrigation systems, and aims to solve the problem that an existing irrigation device cannot solve the problem that the irrigation cost is high at the same time from the aspects of water sources and energy consumption. The condensate irrigation system based on renewable energy comprises an air condensate machine, a water storage tank, a first valve, an irrigation water pump, a second valve, an irrigation network and a photovoltaic controller, wherein the air condensate machine is used for condensing water vapor in air into liquid water and collecting the liquid water; the water storage tank is communicated with the air water condenser through a first valve; the water storage tank is communicated with the water inlet end of the irrigation water pump through a second valve; the water outlet end of the irrigation water pump is communicated with the irrigation network, the photovoltaic controller comprises a solar photovoltaic panel array and a storage battery, the solar photovoltaic panel array is used for charging the storage battery, and the storage battery is used for supplying power to the air water condensing machine and the irrigation water pump. The problem of high irrigation cost can be solved from the aspects of water source and energy consumption, and healthy growth of crops is guaranteed.

The invention discloses a seedling raising device and method for polygonatum kingianum planting, and belongs to the technical field of polygonatum kingianum planting.The seedling raising device comprises a constant-temperature box, a box door is slidably installed in an interlayer of the inner wall of the constant-temperature box, the box door and the arc center of the section of the constant-temperature box are located on the same vertical line, and a humidity sensor is installed on the inner wall of the constant-temperature box; the humidity sensor is connected with one side of the controller; the electric motor is installed on the inner bottom face of the constant-temperature box, an output shaft of the electric motor is connected with a connecting shaft, a seedling raising mechanism is installed on the outer side of the connecting shaft, and a drip irrigation mechanism is arranged above the seedling raising mechanism. According to the seedling culture device and method for polygonatum kingianum planting, after seedling culture is completed, a structure for separating the culture box from the soil is arranged, on one hand, it can be guaranteed that the seedlings and the soil are completely separated from the culture box, damage to rhizomes of the seedlings is avoided, the survival rate of the seedlings is increased, on the other hand, resource waste can be reduced, and repeated use of the culture box is achieved.

The invention discloses a water pump flow control method and system, and the method comprises the steps: S1, a control system is initialized, a global impedance set is obtained through the control system, and the global impedance set comprises but is not limited to the impedance coefficients Zi, the initial pressure Qs and the descent slope K of all branches; s2, based on the global impedance set, the pulse switch time sequences of all branches are coordinated through a pulse synchronous constant-current control method, so that the whole pipe network system operates synchronously at constant current; and S3, if the pulse unit at the inlet end of any branch detects that the pressure waveform is continuously abnormal, the fault diagnosis module sends a fault alarm and a diagnosis result to the main controller, the main controller isolates the abnormal branch, and the step S2 is executed again. By means of the control method and system, it can be guaranteed that the variable-frequency water pump is started in a peak shifting mode, huge pressure impact caused by simultaneous starting and stopping of all valves is avoided, the variable-frequency water pump always works near a resonance point, output is constant, flow is stable, the system operates in a resonance state, and irrigation is more stable.

The invention provides an automatic irrigation device and method based on a soil humidity sensor, and relates to the technical field of water-saving sprinkling irrigation. The automatic irrigation device comprises a distributed soil humidity sensor network buried in soil of an area to be irrigated, a central controller connected with the distributed soil humidity sensor network and an irrigation execution unit electrically connected with the central controller. By arranging a distributed soil humidity sensor network and constructing a three-dimensional distribution model of soil moisture, the inherent defect that traditional single-point measurement is over-summarized is thoroughly overcome; by means of the automatic irrigation device, the real moisture conditions of each subarea and different depths in the irrigation area can be accurately mastered, so that independent and on-demand irrigation of each subarea is achieved, the high uniformity of the soil humidity of the whole field is effectively guaranteed, the optimal moisture environment is provided for crop growth, and the crop yield and quality are directly improved.

The utility model discloses an intelligent farmland header, which comprises a water and fertilizer integrated irrigation module, a central operation controller connected with the water and fertilizer integrated irrigation module and a voice control module, the voice control module is connected with the central operation controller, and the water and fertilizer integrated irrigation module comprises a liquid conveying pipeline. The liquid conveying pipeline comprises a main pipeline and two branch pipelines arranged in the middle area of the main pipeline in parallel, an inlet of the main pipeline is communicated with a centrifugal filter, one of the two branch pipelines is provided with a second electric control valve and an automatic backflushing laminated filter, and the other branch pipeline is provided with a first electric control valve net type filter; the base is of a rectangular structure, the fertilizer preparation box is arranged at one corner of the base, and the automatic backflushing laminated filter, the electric control box and the fertilizer preparation box are arranged on the same side; the centrifugal filter, the sand accumulation tank and the screen filter are arranged on the rear side of the fertilizer preparation box, the first branch pipeline and the second branch pipeline are arranged on the two sides of the centrifugal filter, the electric cabinet is located on the upper portion of the automatic backflushing laminated filter, and through the arrangement, the intelligence of the head of a farmland is improved.

The utility model discloses an automatic regulation and control device for drip irrigation, which comprises a water control component, the water control component is arranged in a water distribution box, the water control component comprises a soil humidity probe, a controller, an air cylinder, a telescopic rod, an extrusion block, a plug block and a water seepage hole, and the soil humidity probe on the water control component is inserted into the surface layer of earth surface soil; the soil humidity probe can detect the soil humidity below the drip irrigation pipe, drip irrigation operation is carried out according to planting requirements, and when water permeates to the soil humidity probe, the soil humidity is higher than a set value of the controller and the soil humidity probe detects that the soil humidity is sufficient, a signal is sent to the controller, and the drip irrigation pipe is controlled to work. At the moment, the air cylinder pushes the extrusion block at one end of the telescopic rod to extrude the plug block in the water distribution pipe, the water seepage holes are attached to the inner wall of the water distribution pipe, position control over drip irrigation fixed points is achieved, automatic drip irrigation can be achieved according to soil humidity changes, meanwhile, watering and fertilization can be conducted synchronously, labor is saved, and the using effect is good.