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815results about "Liquid fertiliser distribution" patented technology

Water-saving fertilization variable control method suitable for sandy soil

The invention relates to the technical field of intelligent control, and discloses a water-saving fertilization variable control method suitable for sandy soil, and the method comprises the steps: obtaining collection data based on a sensor; and establishing and updating an infiltration-storage-leaching loss prediction model of the sandy soil according to the collected data, performing state estimation on soil moisture and nutrient states, and calculating root layer moisture deviation, fertilizer concentration deviation and deep seepage risk. And executing model predictive control in the rolling time domain to obtain a control result. And executing water-saving fertilization operation according to the control result. In the execution process, the soil volume moisture content, the soil water potential, the soil conductivity and shallow layer leakage observation data are fused, the prediction model is corrected, the control result is dynamically adjusted according to the correction result, and when the environment wind speed exceeds a set threshold value, the spray irrigation parameters are corrected. The fine level of control is improved, deep layer leakage can be inhibited under the sandy soil condition, water and fertilizer balance of a root layer is guaranteed, and external disturbance is coped with.
Owner:SHANDONG ACADEMY OF AGRICULTURAL SCIENCES

Intelligent air-assisted spraying device for orchards and spraying method thereof

An intelligent air-assisted spraying device for orchards includes a traction mechanism, a spaying system, a collecting system, and a processing-controlling system. The traction mechanism is provided with a spray tank. The spaying system includes a main body connected to the spray tank and multiple spraying tubes, first ends of the spraying tube are communicated with the main body, and second ends of the spraying tubes are capable of rotating. The collecting system is configured to collect a contour and a volume of the canopy, and branch and leaf density of a fruit tree. The processing-controlling system is configured to obtain multiple spraying areas, calculate an air outlet angle of each spraying tube, and control a rotation of the second end of each spraying tube according to the air outlet angle. The device can adjust the spraying direction of each spraying tube, and the quality of pesticide application can be improved.
Owner:INTELLIGENT EQUIPMENT RESEARCH CENTER BEIJING ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES

Electromagnetic valve control system and method for agricultural irrigation

The invention provides an electromagnetic valve control system and method for agricultural irrigation, and relates to the technical field of electromagnetic valve control, and the method comprises the steps: determining a lag fault-tolerant point when an electromagnetic valve for controlling an irrigation nozzle generates control lag during agricultural irrigation according to the actual condition information and control state data of the electromagnetic valve; performing coordinated correction on the action time of the electromagnetic valve based on the action limit interval and the irrigation spraying amount to obtain a coordinated correction characteristic when the electromagnetic valve for controlling the irrigation nozzle generates control lag during agricultural irrigation, and determining a control fitting threshold when the electromagnetic valve performs irrigation spraying control at different action time according to the coordinated correction characteristic; and fault-tolerant control is carried out on an electromagnetic valve for controlling an irrigation nozzle during agricultural irrigation according to the action feedback deviation. The action feedback of the electromagnetic valve can be monitored in real time in the control process of the electromagnetic valve, the control lag is recognized and corrected, accurate coordination correction is carried out, the control parameters of the electromagnetic valve are dynamically adjusted, and the control stability of the irrigation system is improved.
Owner:NINGBO FUJIN GARDEN & IRRIGATION EQUIP CO LTD

Agricultural trench depth sensing systems, methods, and apparatus

An agricultural trench depth sensing system and method includes a light source (2002), a receiver (2003) and a sensor (2004). The light source directs light downwardly toward a trench previously opened in a soil surface. The receiver is disposed at an angle relative to the light source to receive reflected light. A sensor connected to the receiver senses a pattern of the reflected light. A monitoring system in communication with the sensor, generates a data frame containing triangulated line coordinates and intensity values of the reflected light indicative of a measured depth of the trench. The generated data frame may be associated with GPS coordinates for generating spatial maps and may be used to control operating parameters. The generated data frames may also identify relative soil moisture versus trench depth, or presence of dry topsoil or residue in the trench, or to identify seeds, seed spacing and seed depth.
Owner:PRECISION PLANTING LLC

A ginkgo soilless seedling raising device based on smart agriculture

The present invention discloses a ginkgo soilless seedling raising device based on smart agriculture in the field of ginkgo soilless seedling raising technology, comprising a frame and a nutrient solution pool located at the bottom of the frame, wherein a plurality of liquid storage tanks are installed on the frame; the bottom of the liquid storage tank is open and a cultivation box is fixedly installed on the inner side; a liquid taking mechanism is arranged in the liquid storage tank, and a first driving mechanism is installed on the frame, wherein the first driving mechanism is used for driving the plurality of liquid storage tanks and the cultivation box to circulate; a second driving mechanism is also installed on the frame, wherein the second driving mechanism is used for driving the liquid taking mechanism to absorb the nutrient solution in the nutrient solution pool and transport it to the liquid storage tank when the liquid storage tank moves to the top of the nutrient solution pool, and transport the nutrient solution to the cultivation box during the circulation of the liquid storage tank; the present invention can enable ginkgo seeds to grow better.
Owner:JIANGSU JUNKANG BIOTECHNOLOGY CO LTD

Gas explosion type intelligent variable-rate fertilization scarifier for tea garden

The present disclosure relates to a gas explosion type intelligent variable-rate fertilization scarifier for a tea garden. The gas explosion type intelligent variable-rate fertilization scarifier includes a walking mechanism, a fertilization-scarifying mechanism, a gas explosion mechanism, a solid fertilizer supply mechanism, and a water fertilizer supply mechanism. The fertilization-scarifying mechanism includes a transmission assembly, a detection assembly, and a fertilization-scarifying assembly. A first fertilizer conveying pipeline is fixedly connected between the solid fertilizer supply mechanism and the fertilization-scarifying assembly, and a second fertilizer conveying pipeline is fixedly connected between the water fertilizer supply mechanism and the fertilization-scarifying assembly. Each of the first fertilizer conveying pipeline and the second fertilizer conveying pipeline is provided with a solenoid valve. The walking mechanism, the gas explosion mechanism, the solid fertilizer supply mechanism, the water fertilizer supply mechanism, the fertilization-scarifying mechanism and the solenoid valves are all electrically connected to a same controller.
Owner:TEA RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES +3

Agricultural trench depth sensing systems, methods, and apparatus

A mobile agricultural machine includes a row unit having a furrow opener mounted to the row unit and configured to engage a surface of ground over which the mobile agricultural machine travels to open a furrow in the ground. A furrow closer is mounted to the row unit behind the furrow opener and configured to engage the surface of the ground to close the furrow. A furrow sensor system is mounted to the row unit and configured to sense characteristics relative to the furrow opened by the furrow opener and generate a sensor signal indicative of the characteristics. The mobile agricultural machine can further include a control system configured to determine a furrow quality metric corresponding to the furrow sensed by the furrow sensor system based on the sensor signal and generate an action signal to control an action of the mobile agricultural machine based on the furrow quality metric.
Owner:PRECISION PLANTING LLC

Pruning device for planting horticultural crops

The invention discloses a pruning device for planting horticultural crops. The pruning device comprises a machine shell, and two protective shells are symmetrically and fixedly connected to the inner wall of the machine shell; the removing mechanism comprises two mounting frames which are symmetrically and fixedly connected to the inner wall of the machine shell, sliding blocks are slidably connected to the inner walls of the two mounting frames, fixing rods are fixedly connected to the side walls of the sliding blocks, cutters are fixedly connected to the other ends of the fixing rods, and the cutters are located in the protective shell; the cleaning mechanism comprises two first rotating shafts which are symmetrically and rotatably connected to the inner wall of the protective shell, two cleaning sponges are symmetrically and fixedly connected to the side walls of the two first rotating shafts, a liquid inlet groove is formed in each first rotating shaft, and a plurality of liquid outlet holes are formed in the inner wall of each liquid inlet groove. The micro motor is driven to rotate in the forward direction, the cutter can be driven to cut off branches or leaves to be trimmed, so that the branches or the leaves are removed, the removing efficiency is high, the labor intensity of workers is reduced, disinfectants or nutritional agents can be sprayed, and crops are promoted to be robust.
Owner:JINLING INST OF TECH

Intelligent agricultural intelligent water-saving irrigation system

The invention relates to the technical field of intelligent agriculture, in particular to an intelligent water-saving irrigation system for intelligent agriculture, which comprises a multi-source heterogeneous sensing module for collecting farmland soil data, crop physiological data, meteorological environment data and irrigation equipment operation state data; the AI dynamic decision-making module constructs a TFT time sequence prediction model, calculates the real-time water demand and the ecological adaptation coefficient of crops by combining a crop physiological coupling algorithm, and dynamically generates a personalized irrigation scheme; the self-adaptive regulation and control module is used for implementing a personalized irrigation scheme and carrying out water, fertilizer and pesticide integrated precise putting and multi-water-source dynamic scheduling through a magnetic control driving mode and a flow closed-loop control algorithm; the irrigation effect feedback module verifies the execution effect of the personalized irrigation scheme in real time, and dynamically executes a feedback optimization action in combination with a preset deviation threshold value; and the block chain data security module performs encrypted storage and access traceability on the irrigation whole process data. Therefore, the problems of insufficient prediction accuracy, insufficient water, fertilizer and pesticide feeding precision and the like in the prior art are solved.
Owner:ZHANGYE ZHONGZHI ZHONGCHUANG TECH CO LTD +3

Intelligent water and fertilizer supply device for nursery pond

The utility model discloses an intelligent water and fertilizer supply device for a nursery pond, which comprises a nursery pond unit comprising a nursery pond frame and a nursery pond arranged at the upper part of the nursery pond frame; the liquid supply unit comprises a water source pool and a nutrient solution pool which are arranged below the nursery pond, the water source pool is connected with the nursery pond through a first water pump and a liquid supplementing pipe, the nutrient solution pool is connected with the nursery pond through a second water pump and a fertilizer supplementing pipe, and the bottom of the nursery pond is connected with the nutrient solution pool through a liquid discharging pipe; electromagnetic valves are arranged on the liquid supplementing pipe, the fertilizer supplementing pipe and the liquid discharging pipe; according to the utility model, water and fertilizer adding and water and tray airing operations can be automatically controlled, the problems of untimely water and fertilizer adding, low tray airing efficiency and high labor cost of traditional flue-cured tobacco floating seedling raising are effectively solved, and the strong seedling rate of flue-cured tobacco is improved.
Owner:GUIZHOU TOBACCO CO LTD QIANDONGNAN AUTONOMOUS PREFECTURE BRANCH

Intelligent agricultural water and fertilizer integrated irrigation system

The invention relates to the technical field of agricultural irrigation, and particularly discloses an intelligent agricultural water and fertilizer integrated irrigation system, which comprises an environment and crop state sensing network used for collecting soil, weather and crop phenotype data; the multi-source data fusion and demand analysis engine is used for associating data and analyzing water and fertilizer demands of individual crops; the dynamic decision-making unit based on the crop growth model is used for generating a partition variable irrigation and fertilization instruction through rolling optimization; and the partition variable execution mechanism is used for accurately executing the differentiated instructions. By means of the scheme, personalized precise water and fertilizer management of different crops in the field is achieved, the water and fertilizer utilization efficiency is remarkably improved, and balanced growth of the crops is promoted.
Owner:HENAN RUNZHI WISDOM AGRI TECH CO LTD

Methods and apparatus to control agricultural application rates

Methods and apparatus to control agricultural product application rates are disclosed. An example system to control agricultural product application rates includes a field area processor to determine an area of a field to be covered, and an application rate processor including an end product processor to determine an amount of product to be utilized during an application session, the amount of product to be utilized based on an amount of product on a vehicle and a final product amount, and an application rate calculator to determine a first application rate to be implemented by an applicator based on the amount of product to be utilized and the area of the field to be covered.
Owner:DEERE & CO

Movable fertilization device utilizing self-control fertilization and use method thereof

The invention relates to the technical field of mobile fertilization, and discloses a mobile fertilization device utilizing self-control fertilization and a use method thereof.The mobile fertilization device comprises a fertilizer mixing mechanism, a time sequence mechanism, a fertilization mechanism and a mobile trolley, the fertilizer mixing mechanism, the fertilization mechanism and the time sequence mechanism are all fixed to the mobile trolley, and the fertilization mechanism is connected with the fertilizer mixing mechanism; the fertilizing mechanism sprays mixed fertilizer into farmland, a stirring assembly is connected in the fertilizer mixing barrel, the grading hopper is vertically divided into a plurality of fertilizer storage cavities, gates are arranged at the bottoms of the fertilizer storage cavities, the timing mechanism comprises a cam shaft, a plurality of cams and a plurality of push rods, the cams are rotatably connected with the cam shaft, the cams are different in shape, and the push rods are connected with the cam shaft. The first ends of the multiple push rods are connected with the multiple cams in a one-to-one correspondence mode, the second ends of the multiple push rods are connected with the multiple gates in a one-to-one correspondence mode, the push rods convert rotary motion of the cams into linear motion of the gates, and the mixing degree of various fertilizers can be enhanced.
Owner:XINJIANG SHIDALI AGRI TECH CO LTD

Spray performance deviation detection

For each of a plurality of spray nozzles of an autonomous agricultural vehicle, a set of instructions provided by the autonomous agricultural vehicle to the spray nozzle is accessed. Each instruction in the set is generated by analyzing a respective image of a portion of a geographic area captured by the autonomous agricultural vehicle. A spray performance of at least one spray nozzle from among the plurality of spray nozzles is identified as an outlier by analyzing the sets of instructions respectively provided to the plurality of spray nozzles. An action with respect to the at least one spray nozzle identified as the outlier is performed. The action may be to place the vehicle in fallback state in which a targeted spray may be switched to broadcast spray.
Owner:DEERE & CO

Accurate regulation and control method for corn root layer nitrogen under drip irrigation condition

The invention relates to the field of drip irrigation regulation and control, in particular to an accurate regulation and control method for corn root layer nitrogen under the drip irrigation condition, which comprises the following steps: standardizing multi-source remote sensing soil data of a land parcel to obtain soil grid points, and evaluating the crop growth adaptive relative grade of the grid points; carrying out factor modeling and self-adaptive grading on the soil erodibility parameters to obtain soil fertility potential grades of the grid points; carrying out fusion evaluation on global attribute fluctuation and spatial heterogeneity to obtain adaptive spatial context weight factors of the grid points; performing fusion evaluation on the adaptive spatial context weight factors of the grid points and the soil fertility potential levels of the grid points to obtain gradient consistency distance measurement between the grid points; fuzzy clustering analysis is carried out through gradient consistency distance measurement between grid points to obtain an optimized management partition map and a differentiated drip irrigation strategy, so that the control complexity of a drip irrigation pipe network is reduced, and the drip irrigation precision and the fertilization efficiency are improved.
Owner:JILIN ACAD OF AGRI SCI

Fertilizer sowing equipment for millet sowing

The invention relates to the technical field of planting, in particular to fertilizer spreading equipment for millet seeding, which comprises a soil turning body, a feeding port fixedly mounted at the upper end of the soil turning body, a water inlet formed in one end of the feeding port, a solar photovoltaic panel arranged at the upper end of the soil turning body, and a connecting plate fixedly mounted at one end of the soil turning body. A handrail is fixedly installed at one end of the connecting plate, a groove is formed in the handrail, a fixing bolt is in threaded connection with the interior of the groove, a base is fixedly installed at the bottom end of the soil turning body, a hub is fixedly installed at the lower end of the base, a telescopic rod is fixedly installed at the lower end of the solar photovoltaic panel, and an electricity storage box is fixedly installed in the soil turning body; a water tank is arranged at one end of the power storage box, a mixing chamber is fixedly mounted at the lower end of the feeding port, a nut is in threaded connection with the outer wall of a fixing bolt, a threaded rod is fixedly mounted in the mixing chamber, a stirring rod is fixedly mounted on the outer wall of the threaded rod, and a mounting seat is fixedly mounted in the soil turning body.
Owner:SHANXI AGRI UNIV ECONOMIC CROPS RES INST

Water and fertilizer online accurate detection and irrigation control system

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.
Owner:KUNMING UNIV OF SCI & TECH

Crop growth vigor sensing and control system based on multi-mode large model

The invention discloses a crop growth perception and control system based on a multi-modal large model, and relates to the technical field of artificial intelligence, and the system comprises a data obtaining unit which is used for obtaining a crop canopy image covering a farmland space unit, soil sensor data, environment sensor data and farming operation information in a plurality of collection periods, determining a crop growth basic value and constructing a crop growth graph signal sequence; the growth prediction unit is used for constructing a crop growth Koopman evolution diagram signal processing model on the basis of the farmland space topological diagram and the crop growth diagram signal sequence; and the control execution unit is used for controlling irrigation equipment and fertilization equipment to execute corresponding operation according to the crop growth vigor control strategy. The method can effectively solve the problems of insufficient multi-modal data fusion, lack of spatial correlation modeling, unstable growth prediction, dispersed control strategies and the like in the prior art.
Owner:SHANDONG UNIVALSOFT JOINT- CO LTD

Rural greening maintenance automatic irrigation device

The utility model discloses an automatic irrigation device for village greening maintenance. The automatic irrigation device comprises a water storage tank, a storage battery is installed on the outer wall of the water storage tank, a water pipe is installed on the inner wall of the water storage tank, nozzles are installed at the two ends of the water pipe, a water pump is installed at the tail end of the water pipe, and the bottom of the water storage tank is rotationally connected with a rotating shaft through a bearing. The utility model relates to the technical field of irrigation devices, in particular to an automatic irrigation device for village greening maintenance, which can realize automatic irrigation work on vegetation through the matching of an alarm device, a water storage tank, a filter plate, a water pipe and a water pump, and can automatically remind workers when the water quantity is small, and the water quantity in the water storage tank is small, so that the workers can conveniently use the irrigation device. Irrigation water needs to be added into the water storage tank or the water pump needs to be shut down in time, the situation that the water pump idles is prevented, the problem that the water pump is damaged is solved, an irrigated water source can be filtered, and the phenomenon that the water pump is damaged due to the fact that impurities are doped in the water is avoided.
Owner:SHANDONG INST OF ECOLOGICAL ENVIRONMENT PLANNING

Seed germination and seedling raising device

The utility model relates to the field of seed seedling raising equipment, and discloses a seed germination seedling raising device which comprises a box body and a plurality of seedling raising bowls arranged in the box body, the seedling raising bowls are filled with culture soil, and each seedling raising bowl comprises a first semicircular cylinder and a second semicircular cylinder. The bottom of the first semicircular cylinder and the bottom of the second semicircular cylinder are each provided with a plurality of water leakage holes, the bottom edge of the first semicircular cylinder is hinged to the bottom edge of the second semicircular cylinder, a plurality of driving assemblies capable of controlling the opening and closing states of the first semicircular cylinder and the second semicircular cylinder are arranged in the box body, and each driving assembly comprises a first movable block and a second movable block; and the first movable block and the second movable block are slidably mounted at the bottom of the inner wall of the box body. The seed germination seedling raising device aims at solving the problems that when an existing seed germination seedling raising device is used for transplanting seedlings, a seedling raising pot needs to be manually taken out, then the seedlings are dug out of soil through a shovel, time and labor are wasted during transplanting, and efficiency is low.
Owner:YULIN UNIV

Field potato drip irrigation and fertilization method and system based on feedback control

The invention provides a field potato drip irrigation fertilization method and system based on feedback control, and relates to the technical field of agricultural irrigation. Gains of a PID controller form individual vectors, an initial population is generated, and an optimal compound fertilizer flow setting model is constructed and trained; intelligently determining a target compound fertilizer flow set value through a compound fertilizer flow setting model according to potato tuber feedback data, and constructing a first fitness function in combination with the actual compound fertilizer flow output of the system; selecting individuals in the initial population based on a fitness function to carry out splicing crossover operation to obtain spliced crossover individuals; carrying out equivalence on a signal transmission process of the motor system, and establishing a second fitness function based on an equivalent result; the spliced and crossed individuals are recombined into eight individuals, recombination is selected based on a second fitness function value, the selected recombined individuals are placed in an iteration population, iteration is conducted continuously, and potato drip irrigation and fertilization control is completed.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF AGRI & ANIMAL HUSBANDRY SCI

Devices for dispensing at least one liquid medium; methods for dispensing at least one liquid medium

Device (1) for the application of at least one liquid medium and method for the application of at least one liquid medium are proposed, wherein, due to the design, a soil-friendly application of at least one liquid medium is ensured.
Owner:KORNBRENNEREI ICKING E K

Seedling raising device for saffron crocus planting

The utility model discloses a seedling raising device for saffron crocus planting, which belongs to the technical field of saffron crocus planting and comprises a base, a seedling raising pot is fixedly mounted on the upper surface of the base, a solution tank is fixedly mounted on the side wall of the base through a bottom plate, an expansion component is arranged on the side wall of the seedling raising pot, and the solution tank is fixedly mounted on the bottom plate. A stirring assembly is arranged in the solution tank; according to the seedling raising device, by arranging the expanding assembly, a driving motor on a fixing plate and a water pump in a solution box are started at the moment, the driving motor drives a reciprocating lead screw to rotate on a supporting plate at the moment, meanwhile, a threaded sleeve drives a movable frame to do synchronous reciprocating motion, and the movable frame drives a spray head to do reciprocating motion on a seedling raising pot; the spraying area of the spray head is enlarged through the moving frame, the fertilizer nutrient solution can be evenly distributed on the whole seedling raising pot area through the moving spray head, seedlings in the seedling raising pot can effectively absorb the fertilizer nutrient solution, healthy growth of the seedlings is facilitated, and the cultivation quality of the seedling raising pot is improved.
Owner:LUDING XIAOMO BOX TECHNOLOGY DEVELOPMENT CO LTD

Garden seedling raising device and seedling raising process thereof

The invention relates to the technical field of garden seedling raising, in particular to a garden seedling raising device and a seedling raising process thereof.The garden seedling raising device comprises a feeding table, the right side of the outer wall of the top of the feeding table is fixedly connected with a matching frame, and the left side of the outer wall of the top of the feeding table is fixedly connected with a soil feeding mechanism. Automation and high efficiency of garden seedling raising are achieved, accurate matching and automatic filling of soil ingredients are achieved through a finely designed soil batching and discharging system and an ingenious mechanical transmission structure, the seedling raising efficiency is greatly improved, and meanwhile the automatic rotating disc and the pushing mechanism are arranged, so that the seedling raising efficiency is greatly improved. According to the seedling raising device, the lifting mechanism is arranged, so that the cultivation pots can be orderly and accurately conveyed to all working procedures, smoothness and continuity of the seedling raising process are ensured, in addition, accurate control over the lifting mechanism is achieved through meshing of the gear and the rack plate, and stable conveying of the cultivation pots is achieved through cooperation of the semicircular groove and the pushing plate.
Owner:DONGGUAN FRONTLINE CRAFTSMEN CONSTR CO LTD

Constant-height adaptive spraying method based on convolutional neural network and meta learning

The invention discloses a constant-height adaptive spraying method based on a convolutional neural network and meta-learning, and aims to solve the problems of seemingly constant height and actual non-uniformity caused by the fact that spraying effectiveness and constant-height control are not closed-loop and only the height of a nozzle is controlled but deposition distribution uniformity cannot be guaranteed. The method comprises the following steps: obtaining a canopy image, a pose track, a distance from a nozzle to a canopy and a spraying parameter, carrying out time alignment, and carrying out geometric correction and spraying width coordinate system alignment on the canopy image based on the pose and the track; using the calibration sample to carry out meta-learning rapid adaptation on the deposition distribution estimation convolutional neural network, and outputting deposition distribution, canopy features and uniformity indexes; constructing a micro-deposition agent model composed of a nozzle deposition kernel function, trajectory convolution and attenuation modulation; spraying parameter reference values are optimized according to a deposition uniformity target in the outer ring micro-MPC, constant-height control is achieved in the inner ring micro-MPC with the minimum distance deviation and constraint of the change rate and the safety distance, and the technical effects of deposition distribution closed-loop optimization and constant-height safety tracking are achieved.
Owner:HUNAN UNIV OF SCI & ENG

Precise fertilizer injection amount regulation and control system for water and fertilizer integrated machine

The invention discloses an accurate regulation and control system for the fertilizer injection amount of a water and fertilizer integrated machine, and relates to the technical field of water and fertilizer regulation and control, the system comprises a data acquisition unit, a yield analysis unit, a form analysis unit, a region division unit and an accurate regulation and control unit; according to the invention, the composite farmland is divided into the core area, the boundary buffer area and the overlapped permeation area, and the irrigation amount is differentially regulated and controlled according to the water and fertilizer permeation rule, so that the problems of fertilizer waste and crop growth imbalance caused by excessive boundary permeation of a traditional water and fertilizer integrated machine in a composite planting scene are effectively solved; and meanwhile, growth period intelligent identification is carried out in combination with crop form images, and suitable water and fertilizer intervals in different growth periods are dynamically optimized by fusing historical yield data, so that the accuracy and adaptability of water and fertilizer supply are remarkably improved, scientific regulation and control of full-cycle growth of crops are ensured, and resource waste and environmental pollution caused by excessive fertilization are avoided.
Owner:LAIWU FENGTIAN WATER SAVING EQUIP CO LTD

Agricultural microalgae fertilizer in-situ manufacturing and applying device and method

The invention discloses an agricultural microalgae fertilizer in-situ manufacturing and applying device and method, and belongs to the field of microbial fertilizer manufacturing, the device comprises a first box body, the first box body is filled with a culture solution and microalgae, the first box body is communicated with a supplement pipe, the side wall of the first box body is provided with a plurality of overflow small holes, and the overflow small holes are communicated with the supplement pipe; the supplementing pipe can supplement a culture solution into the first box body, the supplementing pipe injects the culture solution into the first box body, and when the liquid level of the culture solution reaches the overflow small hole, the culture solution containing microalgae flows out to the soil, and when injection of the culture solution into the first box body is stopped, the microalgae remaining in the first box body continues to grow; the device is easy and convenient to operate, efficient preparation and application of the microalgae fertilizer can be achieved on the premise that the activity of microalgae cells is not damaged, the manufacturing and transportation cost of the microalgae fertilizer can be greatly reduced, the utilization efficiency of the fertilizer can be improved, and healthy growth of crops can be promoted.
Owner:SHANDONG ANALYSIS AND TEST CENTER

Intelligent control method and system for high-pressure atomization irrigation and storage medium thereof

The invention relates to an intelligent control method and system for high-pressure atomization irrigation and a storage medium of the intelligent control method and system, and aims to solve the problem that the quality is inconsistent due to the fact that traditional water and fertilizer management of high-value crops is difficult to sense the internal physiological state of the crops in real time. Randomly selecting a plurality of offering samples in each management partition for destructive sampling, and obtaining crop truth value data through physiological and biochemical detection; then, an irrigation rule base is established and dynamically updated based on the truth value data, and then variable control instructions are generated for the management partitions in combination with the real-time environment data; the invention further provides a system for implementing the method and a storage medium, accurate regulation and control starting from real demands of crop bodies are achieved, the consistency of crop quality and the resource utilization efficiency are effectively improved, and self-learning and predictive prevention and control capabilities are achieved.
Owner:NINGBO FUJIN GARDEN & IRRIGATION EQUIP CO LTD

Solanaceous fruit seedling raising facility and seedling raising method thereof

According to the solanaceous seedling raising facility and the solanaceous seedling raising method provided by the invention, the intelligent environment regulation and control system of the facility can accurately adjust various environmental factors in the seedling raising treatment chamber, meet the requirements of seedlings at different stages, optimize growth conditions and improve the seedling raising efficiency and uniformity. Meanwhile, resources such as water and fertilizer can be precisely put in the system, and waste is reduced. An automatic seedling raising processing system in the facility can automatically execute operations such as sowing and grafting according to the breeding progress, so that the working efficiency is improved, and the labor intensity of workers is reduced. Meanwhile, the invention further provides a matched seedling raising method. According to the method, an automatic seedling raising treatment system is utilized, the seedling raising task can be automatically, continuously and rapidly completed, and errors generated by manual operation are reduced. For example, the visual module can quickly position the grafting part, shorten the adjustment time, accelerate the grafting speed, realize the process standardization and guarantee the grafting quality.
Owner:SHANGHAI SUNQIAOYIJIA TECH AGRI CO LTD +1