111 results about "Soil texture" patented technology

The invention relates to the technical field of intelligent agriculture, and particularly discloses an orchard intelligent water and fertilizer integration-based edge end fruit tree fertilizer demand prediction method, which comprises the following steps of: constructing each fruit tree as a graph node, and fusing canopy spatial characteristics extracted by unmanned aerial vehicle multispectral remote sensing and nutrient time sequence characteristics monitored by a soil sensor; space influence weights among nodes are calculated according to the terrain, the soil texture and the space distance, and a fruit tree individual relation graph is established; then, through a space-time diagram convolutional network, aggregating space neighborhood features and capturing time dynamic changes, and outputting target state features subjected to multi-scale enhancement; when the canopy conflicts with the soil characteristic indication, combined diagnosis is carried out based on a neighborhood consistency index and an adjacent node state, systematic nutrient stress and local non-nutrient factors are distinguished, and final fertilizer demand prediction is generated after the conflict is eliminated; a digital fertilization prescription map is generated through spatial interpolation, soil characteristics and slope correction, and the water and fertilizer integrated equipment is driven to execute precise operation.

The invention relates to the technical field of agricultural machinery, in particular to a crop layered fertilization intelligent precision plowing and sowing machine which comprises a rack, a walking driving part is arranged on the rack, a sowing machine is arranged on one side of the rack, a bearing frame is fixedly connected to the side, away from the sowing machine, of the rack, and a plurality of rotary tillage assemblies are transversely arranged on the bearing frame at equal intervals; a plurality of fertilization assemblies capable of vertically sliding are arranged at the bottom of the side, close to the rack, of the bearing frame, transmission assemblies are arranged between the soil retaining assemblies and the fertilization assemblies, and the transmission assemblies are used for reducing the impact force of the soil particles raised by the rotary tillage assemblies to the soil retaining assemblies and reducing the impact force of the soil particles raised by the rotary tillage assemblies to the fertilization assemblies. Transmission is converted into driving force for the height of the fertilizing assembly. The soil texture is fed back through the impact force of soil particles raised by rotary tillage and soil disturbance, so that the layered fertilization depth is adjusted in a linkage manner, and the defects of poor adaptability between the fixed layered fertilization depth and different soil properties and soil nutrient loss in traditional tillage and sowing are overcome.

The invention belongs to the technical field of intelligent soil monitoring, and particularly relates to a multi-sensor networking soil parameter high-precision detection device and method.The device adopts sensing, transmission and data processing, a four-layer architecture is applied, a sensing layer collects soil texture, temperature and salinity parameters, an environment interference factor matrix is constructed, and a data processing layer is constructed; outputting non-interference data through a layered interference calibration model; the transmission layer completes data transmission through wired and wireless dual modes; the data processing layer extracts spatial-temporal characteristics after preprocessing, and obtains a soil parameter fusion value through dynamic weight fusion; and the application layer matches the fusion value with a preset template to realize scene generation and visual rendering. According to the invention, the problems that the precision of the existing multi-sensor networking system is easily influenced by the outside and the intelligent level is insufficient can be solved.

The utility model discloses an efficient drainage ditch excavation device based on an adjustable shaping excavator bucket, and relates to the technical field of municipal engineering and hydraulic engineering construction. Different design requirements are met by hydraulically adjusting the size of the bucket, the bucket body is formed at a time, manual finishing and template use are reduced, the construction cost is reduced by more than 20%, the excavation precision is controlled by combining GPS positioning and real-time measurement, the groove longitudinal slope and elevation precision is ensured, and the construction efficiency is improved. One-time forming of the drainage ditch and synchronous outward transportation of spoil are achieved, and site accumulation is avoided. According to the scheme, the construction efficiency and quality are remarkably improved, and the method is suitable for municipal drainage engineering under soil texture and strong weathered rock geological conditions.

The invention relates to the technical field of artificial intelligence, and provides a soil texture recognition model construction method, a soil texture recognition model construction device, a computer readable storage medium and electronic equipment, and the soil texture recognition model construction method comprises the steps: screening key soil texture features from a plurality of ocean soil texture features; the feature importance score of the key soil feature is higher than a preset score threshold; collecting training data associated with the key soil characteristics, and training a plurality of initial machine learning models by using the training data; and according to a preset performance evaluation index, screening out a final target machine learning model for ocean soil texture identification from the plurality of initial machine learning models. According to the invention, through an automatic modeling mechanism combining feature optimization and multi-model performance screening, the classification precision and engineering applicability of the ocean soil texture identification model are improved.

A root tuber type traditional Chinese medicinal material harvester comprises a harvesting assembly, a rack, a separating assembly and a material collecting assembly, the harvesting assembly comprises a scraper knife part, and the movement track and the inclination angle of the scraper knife part can be adjusted; the rack comprises an upper rack and a lower rack, and a containing cavity is formed between the upper rack and the lower rack and used for containing the separation assembly; the separation assembly comprises a first separation mechanism and a second separation mechanism which are obliquely arranged from back to top and are staggered; the first separation mechanism comprises a screen mechanism, a crushing wheel assembly and a hydraulic cylinder, the distance between the crushing wheel assembly and the screen mechanism can be adjusted, and the hydraulic cylinder can lift the first separation mechanism. The whole structure and arrangement of the digging shovel, the separation assembly and the rack are optimized, so that the shovel blade part can be suitable for traditional Chinese medicine crops with different soil textures and categories; a multi-stage separation mechanism is arranged by optimizing the space of the rack, so that the separation effect is improved; the separating mechanism is obliquely arranged, the volume of the material collecting assembly is increased, the hopper can swing and dump, manual replacement is not needed, and the working efficiency is improved.

The invention provides a drought and flood sudden change prediction method fusing a soil moisture content and rainfall coupling model, and relates to the technical field of drought and flood sudden change. Comprising the steps that layered soil moisture content, high-frequency rainfall and auxiliary data are collected and preprocessed, and a soil moisture content-rainfall coupling coordination initial value is constructed and corrected; traversing drought and flood windows by using the standardized soil moisture content-rainfall coupling coordination index sequence, and determining an optimal window; carrying out nonlinear correction, judging a sudden turning event according to a corrected threshold value, and outputting a drought and flood sudden turning prediction result; and calculating a drought and flood sudden change duration prediction value Tint and a soil moisture content rainfall mutation index SPIef according to a drought and flood sudden change prediction result, a soil texture coefficient and the like, constructing a risk matrix, outputting an early warning level and a response suggestion in combination with the vulnerability of the disaster-bearing body, and outputting early warning information. According to the method, the optimal window is determined and optimized, drought and flood sudden turning is predicted, the scientificity and accuracy of prediction are guaranteed, and the practical application value is enhanced.

The invention provides a soil carbon reserve measuring and calculating method and system and a medium, and belongs to the technical field of organic carbon reserves, and the method comprises the following steps: obtaining surface layer reflectivity spectral data of each layer of soil after construction of a disturbance area; dividing a plurality of grids based on the spatial distribution characteristics of the reflectivity spectrum; according to the coordinates of the center position of each grid, the soil texture and land utilization type corresponding to each grid in the database are called, and according to the reflectivity spectral characteristics of each grid, the soil organic carbon content on each grid is inverted through a pre-trained organic carbon content estimation model; according to the center position coordinate of each grid, calling the corresponding soil bulk density on each grid in the database, and determining the soil organic carbon reserve on each grid based on the soil bulk density and the soil organic carbon content; wherein the database stores soil texture, volume weight and land utilization type data corresponding to different coordinates; and obtaining the soil organic carbon reserve of the disturbance area according to the soil organic carbon reserve of each grid. The method can efficiently calculate the soil carbon reserve in the field.

The invention belongs to the technical field of plant planting, and discloses a plant root zone water-retaining agent targeted application method and system based on an intelligent model, and the method comprises the steps: obtaining plant parameter data, planting pit structure data and soil texture data; determining a root zone radius and a root zone effective depth, calculating a root zone cross section area and a root zone volume, and obtaining the number of layers and the volume of each layer; obtaining a water supply event record and a water content time sequence, obtaining a root zone equivalent infiltration volume, and obtaining a root zone effective water retention volume; calculating the notch volume of the effective moisture supply of the root zone by combining the effective moisture retention volume of the root zone, and endowing the notch with a grade mark; pre-constructing a water-retaining agent application prediction model, and outputting a water-retaining agent target dosage and layered putting proportion set; correcting an output result of the water-retaining agent application prediction model; modeling analysis is carried out on the moisture retention and notch of the root zone through the model, the water-retaining agent dosage and the layering proportion are output, and the pertinence and stability of water-retaining agent application are improved.

The invention discloses a device capable of flexibly adjusting turning and burying depth and returning amount, which comprises a main frame and further comprises the following modules: a straw treatment module arranged at the front part of the main frame and used for collecting field straws; the straw crushing module is arranged at the position of the middle of the main machine frame and used for crushing straw and conveying the crushed straw; and the straw turning and burying module is arranged at the rear part of the main frame. According to the device capable of flexibly adjusting the turning and burying depth and the field returning amount, through the depth adjusting module, the straw turning and burying depth can be accurately controlled according to the actual conditions of different soil textures, crop root system distribution and the like, and meanwhile the field returning amount is reasonably adjusted; straw can be fully turned and buried into soil, sufficient organic matter is provided for the soil, adverse effects on crop growth caused by too deep or too shallow turning and burying and too large or too small returning amount can be avoided, and the agricultural production quality is effectively improved.

The invention provides a dredger sensor health state diagnosis method and system, and belongs to the technical field of ship equipment health management.The dredger sensor health state diagnosis method comprises the following steps that N recent continuous sampling points are selected, a data mean value and a standard deviation in a sliding window are calculated, and a threshold confidence interval is defined; if the current sampling value continuously falls into the threshold confidence interval for M times; data such as mud pump power, mud density, pressure and flow velocity are collected in real time through the data collection unit, the mean value and the standard deviation are analyzed and calculated through the signal preprocessing unit, and then the fault type is judged in combination with the dynamic threshold value adaptation module, the soil texture classification strategy module and the redundancy check module. Alarm signals such as disconnection, water inflow and border crossing are triggered according to priorities through an alarm output unit, and the problems of mismatching of static thresholds, poor soil adaptability, high false alarm rate and the like in the prior art are solved by utilizing dynamic threshold adjustment, multi-dimensional data fusion and redundancy check mechanisms.

The invention relates to the technical field of digital soil mapping and soil information extraction, and discloses a soil type texture map deduction method, device and equipment of surface soil and a medium. The soil type texture map deduction method comprises the steps of obtaining mechanical composition of field sampling points, obtaining environment covariants of a target area, and obtaining the environment covariants of the target area; modeling the environment covariables of the target area into a plurality of spatial point elements, and modeling the soil type map into a plurality of spatial surface elements; establishing a machine learning model, and predicting the mechanical composition corresponding to the environment covariable array of all spatial point elements; assigning a corresponding soil texture to each space surface element based on a mechanical composition mean value of all space point elements in each space surface element surface; and drawing a continuously distributed soil type texture map according to the soil type textures corresponding to all the spatial surface elements. The soil type texture map inference method, device and equipment and the medium are used for assisting soil type naming in a soil classification system, the prediction precision is high, the prediction efficiency is high, and the cost is low.

The utility model discloses a composite support system for excavation of a soft soil texture foundation pit, which comprises SMW (soil mixing wall) construction method piles, three-shaft mixing piles and an underground support structure, and the SMW construction method piles are arranged at intervals along the outer side of the foundation pit in the circumferential direction to form an outer enclosure structure. The three-shaft mixing piles are arranged along the inner side of the foundation pit at intervals and located on one side of the SMW construction method piles so as to form an inner reinforcing structure, the underground supporting structure is arranged in the SMW construction method piles and located in the foundation pit, and the underground supporting structure comprises an underground body, horizontal inner supports, stand column piles, latticed columns and adjustable inclined throwing supports. The latticed columns are vertically arranged below the horizontal inner supports, the bottom ends of the latticed columns are inserted into the stand column piles, and the adjustable inclined throwing supports are installed between the side walls of the underground body and a bottom plate of the underground body in an inclined mode. A composite supporting system composed of the composite supporting structure and the underground supporting structure is adopted, and the composite supporting system is suitable for soft soil geologic condition supporting and can provide higher supporting force.

The invention discloses an intelligent foundation detection and evaluation method and system, and the method comprises the steps: setting a ground penetrating radar and a micro-electromechanical sensor array based on the condition of a foundation and a detected target; data acquisition is carried out based on a ground penetrating radar and a micro-electro-mechanical sensor array, and detection radar data and micro-electro-mechanical sensor data are obtained; analyzing and processing the data of the ground penetrating radar and the data of the micro-electro-mechanical sensor; carrying out weighted fusion on the analyzed ground penetrating radar data and the micro-electromechanical sensor data through a space-time synchronization mechanism, and dynamically adjusting the fusion weight according to the soil texture type; and establishing a dynamic risk assessment model, and inputting the fused multivariate data into the dynamic risk assessment model to obtain a risk assessment level of the foundation to be monitored. According to the method, foundation information is obtained from multiple dimensions, defects such as tiny cracks and cavities can be recognized more accurately, and tiny vibration, pressure and humidity changes of the foundation are monitored accurately.

The invention discloses a water-rich stratum pipe-jacking construction pipeline frictional resistance detection test device and method. The device comprises a test bed body, a hydraulic propulsion and frictional resistance measurement assembly, a seepage pressure monitoring assembly and a data acquisition and processing assembly. The method comprises the following steps: 1, pasting a protective film; 2, mounting a hollow steel pipe and a regulation and control water pipe; 3, filling the soil containing cavity with soil and arranging a seepage pressure monitoring assembly; 4, cutting the plate, drawing out the hollow steel pipe and loading the hollow steel pipe into a concrete segment; 5, starting a hydraulic propulsion and frictional resistance measuring assembly and injecting thixotropic slurry; 6, calculating the ith number of frictional resistance generated by the soil body and the pipe joint in the jacking process; 7, calculating the average frictional resistance generated by the soil body and the pipe joint in the jacking process; and 8, calculating the correction value of the average frictional resistance. According to different regions, different working conditions and different pore water pressure stratums, the soil texture type and the water content can be adjusted, the frictional resistance of the test thixotropic slurry and the pipe joint is actively obtained, and actual construction is guided.

The invention discloses a soil texture detection device, and relates to the technical field of soil texture detection, the soil texture detection device comprises a base, a soil collection assembly and a detection assembly, the soil collection assembly comprises a spiral blade, an adjusting mechanism, a clearing mechanism and a screening mechanism; the detection assembly comprises a conveying channel, a temperature detector, a humidity detector, a pH value detection mechanism and a detection box. According to the invention, the arranged clearing mechanism passively rotates along with the rotation of the spiral blade, so that the clearing mechanism removes large impurities on the surface of soil and prevents the impurities from entering the collecting cylinder, and meanwhile, the arranged screening mechanism screens out fine impurities in the soil, so that the detection assembly is protected from being worn while the purity of an initial sample is ensured; and the conveying channel guides the screened soil to sequentially pass through the detection components, so that the temperature detector, the humidity detector and the pH value detection mechanism respectively detect the temperature, the humidity and the pH value of the soil, and meanwhile, different reagents are placed in the detection box so as to further detect the components of the soil.

The invention relates to the technical field of soil fertilizer sampling detection, and discloses a soil fertilizer nutrient detection sampling device which comprises a sampling machine, a driving motor is fixedly installed at the top of the sampling machine, a spiral drill bit is fixedly installed at the bottom of an output shaft of the driving motor, and a drill rod is arranged at the bottom of the sampling machine. Through the arrangement of the movable assembly, the rotating disc is rotated, the arc-shaped groove formed in the surface abuts against the sliding rod, the sliding rod is driven to slide along the surface of the rotating disc, then the fixing plate is pushed to move through the fixing rod, the movement of the fixing plate can drive the drill rod to slide at the bottom of the connecting ring, and meanwhile the drill rod can slide on the surface of the connecting rod; the drill rod is driven to be expanded or shrunk through the connecting rod, so that the size of the drill rod in the using process is changed, different requirements for the hole diameter of the drill rod for different soil textures are prevented, flexible adjustment can be achieved according to the actual soil condition, the sampling precision is improved, the device applicability is enhanced, and the sampling convenience is optimized.

The utility model discloses an adjustable drag head device and a drag suction dredger, and belongs to the technical field of dredging engineering.The adjustable drag head device comprises a main machine body, a movable cover, a cutting assembly, a first driving part and a second driving part, and the movable cover is rotationally connected with the main machine body through a first rotating shaft; the cutting assembly comprises a supporting beam and cutting rake teeth, the multiple cutting rake teeth are arranged on the supporting beam in the extending direction of the supporting beam, and the supporting beam is rotationally connected with the movable cover through a second rotating shaft; the first driving part is used for driving the movable cover to rotate around the first rotating shaft to adjust the cutting depth; the second driving piece is used for driving the supporting beam to rotate around the second rotating shaft so as to adjust the cutting angle. The drag suction dredger comprises a dredger body, and the adjustable drag head device is arranged on the dredger body. The cutting depth and the cutting angle are accurately and flexibly adjusted through the first driving part and the second driving part respectively, so that the trailing suction dredger can adapt to different soil textures, and the efficiency and the quality of dredging operation are effectively improved.

The invention relates to the technical field of machine control, in particular to a scarifier device and method for gardens, and the method comprises the steps: firstly, determining the cutter vibration scarification stability representing the soil loosening condition by combining the characteristic that the vibration data of a blade can present a remarkably rising instability when the soil becomes hard; then analyzing the vibration data association condition between each scarifier blade and the adjacent scarifier blade, so that the obtained resonance index of the adjacent blade can represent the weight of the vibration change of the corresponding blade influenced by the adjacent blade; on the basis, the instantaneous change condition of blade vibration data at the current moment is introduced, so that the garden soil hardening degree reflected by each scarifier blade in real time is more accurate; and finally, the blade of the scarifier is controlled in advance according to the hardening degree of the garden soil texture, so that the condition that the blade of the scarifier collides with gravels is indirectly reduced, abrasion generated by the blade is reduced, the service life of the scarifier is longer, and the scarification efficiency of the garden soil is improved.

The invention relates to the technical field of remote sensing data processing, and provides a soil humidity data missing filling method, which comprises the following steps: acquiring a soil humidity data sequence corresponding to ESA CCI soil humidity data to be filled, the multi-source soil humidity related data comprises surface temperature data, a normalized vegetation index, rainfall data, digital elevation model data, soil texture data, soil humidity reanalysis data and ground verification data. And inputting the soil humidity data sequence into a trained soil humidity data missing filling model to obtain a filling data result corresponding to the ESA CCI soil humidity data to be filled, the soil humidity data missing filling model being obtained by carrying out transfer learning training according to a pre-training set and a fine tuning training set. The soil humidity data missing filling model comprises a time convolutional network module, a bidirectional long short-term memory network module, a self-attention mechanism module and an output module.

The invention relates to a backfill soil high-compactness construction method, belongs to the technical field of civil engineering and foundation treatment, and is suitable for backfill engineering of building foundation pits, roadbeds, pipeline grooves and the like. The construction method comprises the following steps: S1, optimizing soil texture and intelligently adjusting and controlling water content; s2, intelligently monitoring the layered paving and compacting process; and S3, real-time compaction degree quality detection is carried out. The construction method disclosed by the invention has the beneficial effects that the uniformity is high: through hierarchical control and intelligent monitoring, the standard deviation of the compaction degree is less than or equal to 0.01; the compaction process is optimized, and the number of times of mechanical rolling is reduced by more than 20%; the settlement rate after construction is reduced by more than 50%, and the service life of engineering is prolonged.

The utility model belongs to the technical field of highway subgrades, and particularly relates to a cold region anti-sedimentation highway subgrade structure which comprises a lower base layer, baffles, a soil filling layer, a base plate, a drainage groove, a hole plate, a geogrid, a reinforcing net, concrete, an upper base layer and a surface layer, the baffles are arranged on the two sides of the lower base layer, the soil filling layer is laid on the top of the lower base layer, and the base plate is arranged on the top of the soil filling layer. The drainage groove is formed in the top of the base plate and horizontally penetrates through the baffle, the hole plate is arranged on the top of the base plate, the geocell is laid on the top of the hole plate, and the concrete is laid on the top of the reinforcing net and backfilled in the geocell. According to the anti-settling highway subgrade structure in the cold region, the drainage channel is arranged in the foundation, water permeating into the foundation is discharged outwards through the drainage channel, loss of soil texture of the foundation is reduced, the foundation is reinforced, and the service life of the foundation is prolonged.

The application discloses a comprehensive improvement method for coastal saline-alkali soil based on salt-tolerant superabsorbent resin, which comprises the following steps: (1) removing a 1.5m deep soil layer, laying grass support pads and gravel layers on the bottom to construct an isolation layer; (2) selecting specially designed water permeable bricks, filling the water permeable bricks with salt-tolerant superabsorbent resin to construct small salt isolation modules; (3) laying the small salt isolation modules on the isolation layer to construct a salt isolation layer; (4) wrapping the salt-tolerant superabsorbent spherical resin in a water-saturated state with pine needle soil, mixing the salt-tolerant superabsorbent spherical resin with leached saline-alkali soil, and backfilling the mixture to form a root water-retention layer above the salt isolation layer; and (5) preparing soil texture repair matrix blocks, mixing the soil texture repair matrix blocks with leached saline-alkali soil, and backfilling the mixture to construct a composite soil cultivation layer. The application can significantly improve the soil environment, improve the soil physical structure, and be beneficial to improving the agricultural productivity and the ecosystem function of the saline-alkali soil by constructing the salt isolation layer and the root water-retention layer and improving the structure of the soil cultivation layer.

The utility model relates to the technical field of seed sowing, and discloses a corn hybrid seed sowing and soil covering device which comprises a mounting plate, a material collecting box is fixedly connected to the upper surface of the mounting plate, a discharging pipe is connected to the lower surface of the material collecting box in a penetrating mode, a motor is fixedly installed on one side of the discharging pipe, and the output end of the motor is fixedly connected with a sowing disc. A mounting frame is fixedly connected to the lower surface of the mounting plate, two connecting shafts are fixedly connected to one side of the mounting frame, connecting blocks are rotationally connected to the exteriors of the connecting shafts, a soil covering plate is fixedly connected to one side of each connecting block, and an adjusting assembly is arranged on one side of the mounting frame. According to the soil covering device, the soil covering angle of the soil covering plate can be conveniently adjusted, the angle of the soil covering plate can be conveniently adjusted according to the soil texture when seeds are sown, the seeds can be uniformly and appropriately covered with soil, and the soil covering angle can be conveniently increased according to the characteristics that sandy soil is large in soil particle and prone to loosening; and the thickness and the stability of soil covering can be increased.

The present application relates to the technical field of surveying services, in particular to a sandy loam soil photovoltaic pile sinking high-precision positioning method based on image three-dimensional modeling, comprising the following steps: obtaining pile site area images through a preposed binocular industrial camera of a pile machine, constructing a ground point cloud according to soil texture parallax, generating a soil disturbance weight map by analyzing rut soil ridges and pile tip indentations, screening pile site candidate coordinates, combining pile pipe edge offset to calculate pile body deflection and output pile sinking positioning instructions. In the present application, through the joint judgment of soil disturbance and pile body deflection, the sandy loam soil surface layer slip participates in the landing point correction, the coordinate determination is continuously kept corresponding to the soil state under the condition of surface topography change, the horizontal movement mechanism and the pile pressing mechanism synchronously receive positioning control, the landing point drift caused by artificial scale transmission is reduced, the axis inclination caused by the friction of the pile body into the soil is inhibited, the cumulative deviation of the array reference line is limited, and the landing point consistency of the photovoltaic pile site is improved.

This invention provides a method and system for calculating the liquid water content of permafrost in highland soil. [Solution] The method includes: step S1 acquiring a soil temperature and humidity observation network dataset from the central part of the plateau; step S2 performing texture classification on the soil to obtain soil texture classification results; step S3 combining the soil texture classification results and the soil temperature and humidity observation network dataset to fit the relationship between solid water content and soil temperature for soils with different textures; step S4 determining a formula for calculating the liquid water content of the soil based on the relationship between solid water content and soil temperature; step S5 improving the VIC model based on the formula for calculating the liquid water content; and step S6 calculating the liquid water content of the plateau permafrost using the improved VIC model.

The invention relates to an intelligent irrigation control system and method for potatoes in a high-altitude area. The intelligent irrigation control system comprises: a water-retaining agent type identification module, which scans a pre-embedded label to obtain water-retaining agent type data; the permeability parameter calculation module is used for dynamically calculating soil permeability parameters based on the characteristics of the water-retaining agent; the oxygen stress risk assessment module fuses the oxygen content, the soil texture and the permeability to generate a risk index; the irrigation oxygen injection instruction generation module dynamically adjusts a soil moisture content threshold value and an oxygen injection strategy according to the risk level; and the control parameter feedback optimization module updates the penetration model in a closed-loop manner through pore structure analysis. According to the method, a charcoal type-permeability characteristic-oxygen stress cooperative regulation mechanism is established in a breakthrough mode, intelligent linkage of irrigation and oxygen injection is achieved, and the water and oxygen utilization efficiency and tuber quality of high-altitude potato planting are remarkably improved.

The invention discloses a sinking method for layered uniform earth cutting and dynamic deviation correction of an open caisson, and relates to the technical field of sinking construction of open caiss.The sinking method for layered uniform earth cutting and dynamic deviation correction of the open caisson comprises the steps that earth cutting construction is conducted according to the soil texture type of a soil layer where the open caisson is located; in the soft soil layer, an in-well layered earth cutting mode is adopted, an earth embankment is reserved at the cutting edge of the open caisson, and the earth embankment is gradually flattened to enable the open caisson to sink; in the hard soil layer, a groove jumping method is adopted for earth cutting, firstly, the blade foot area of the open caisson is emptied in a segmented mode, gravel is backfilled, and finally the soil layer below the positioning bearing pad is excavated away; and in the sinking process of the open caisson, the inclination state of the open caisson is monitored in real time, and when it is detected that the posture of the open caisson is inclined, dynamic deviation correction operation is executed. According to the method, the soil texture type of the soil layer where the open caisson is located is systematically distinguished, differentiated earth cutting construction strategies are designed for the soft soil layer and the hard soil layer correspondingly, and the sinking process of the open caisson is accurately controlled in combination with collaborative application of real-time monitoring and a dynamic deviation correction mechanism.

The invention provides an unstructured road identification method and system suitable for an agricultural unmanned vehicle, a medium and a terminal, on one hand, the method does not depend on color threshold segmentation, is not limited by illumination and surface texture change any more, is suitable for scenes with dense trees on two sides of a road, can also adapt to tree-free open scenes, has a very strong generalization ability, and is suitable for popularization and application. The method does not need to depend on the weed coverage condition, color difference and other external characteristics of roads. And on the other hand, the method does not depend on artificial experience like a traditional machine learning technology, can well adapt to various farmland scenes, greatly increases the universality, and greatly improves the recognition rate in a large-range unstructured environment. And finally, large-scale accurate data labeling is not needed, and the generalization performance under different crop, soil texture and weather conditions is excellent. In short, the spatial perception precision can be improved; the influence caused by illumination is avoided; the method is suitable for scenes with many or no trees; the path is prevented from being identified only through trees; and the generalization ability is strong, and no requirement on road characteristics exists.

The utility model relates to the field of agricultural ploughing and seeding technology, and aims at providing a soil crushing equipment for agricultural ploughing and seeding, which comprises a protective shell, a driving assembly is arranged below the protective shell, a soil crushing assembly is arranged on the driving assembly, a supporting assembly is fixedly arranged on the outer wall of the protective shell, an auxiliary soil crushing assembly is arranged on the supporting assembly, a connecting assembly is fixedly arranged on the upper surface of the protective shell, the driving motor is a variable-speed motor, the rotating speed can be flexibly adjusted according to different soil textures and ploughing requirements, and the soil crushing adaptability is improved. The soil crushing assembly is fixed with a soil crushing knife through connecting bolts and soil crushing bolts, so that the replacement and maintenance are facilitated. The auxiliary soil crushing assembly further crushes the soil, and the soil crushing effect is improved. The connecting assembly is convenient for being connected with agricultural machinery, and the operation efficiency is improved. The overall structure is reasonable, the problems of low soil crushing efficiency, poor effect, inconvenience in maintenance and the like of the existing equipment are effectively solved, and the utility model helps the agricultural ploughing and seeding.