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61results about How to "Avoid falling into" patented technology

Hydroelectric generating set mechanical vibration trend prediction method, device, equipment and medium

The invention belongs to the technical field of hydroelectric generating set vibration prediction, and particularly relates to a hydroelectric generating set mechanical vibration trend prediction method and device, equipment and a medium, and the method comprises the steps: processing a vibration signal of a hydroelectric generating set through employing a variational mode decomposition algorithm; training the deep belief network by using the training set to obtain a trained deep belief network model; using a sparrow search algorithm to optimize parameters of the deep belief network model to obtain a vibration trend prediction model; and collecting a vibration signal of the hydroelectric generating set, processing the vibration signal by using a variational mode decomposition algorithm, inputting the processed vibration signal into the vibration trend prediction model to obtain a vibration prediction value, and taking the obtained vibration prediction value as an input of next prediction to realize multi-step prediction of the vibration trend of the hydroelectric generating set. By means of multi-step prediction, operation and maintenance personnel can know the vibration trend of the hydroelectric generating set in a period of time in the future in advance, potential fault hidden dangers can be found in time, and the operation safety and stability of the hydroelectric generating set are improved.
Owner:SHANDONG UNIV

Method for preparing special graphite material from isostatic pressing graphite waste

This invention relates to the field of graphite waste treatment technology, and more particularly to a method for preparing special graphite materials from isostatic pressing graphite waste, comprising the following steps: waste collection: firstly, the waste generated from isostatic pressing graphite production is collected and processed centrally; waste treatment: the collected waste is centrally fed into a purification module, where impurities are screened and removed; waste crushing: after the isostatic pressing graphite waste has been screened, it is pushed into a crushing device for crushing; material proportioning, pressing, primary calcination, and graphitization treatment; this invention, by processing the waste from isostatic pressing graphite production through the screening and purification processes described above, followed by crushing, can then be proportioned, fed into a mixing pot, and then pressed, calcined, and graphitized to produce special graphite materials, thus avoiding environmental pollution from waste and achieving full utilization of resources.
Owner:HEBEI BOXIANG SPECIAL GRAPHITE CO LTD

A multi-functional fire-fighting intercom

This utility model discloses a multi-functional fire-fighting intercom, including a main body and an intercom module, a temperature detection module, a control module, a gas detection module, a stationary detection module, an alarm module, and a battery integrated on the main body. The intercom module has a microphone speaker on its left or right side. The temperature display panel of the temperature detection module is located on the top of the main body. The gas detection module has a gas detection probe and an information display window on its front, displaying the concentration of the detected gas. The stationary detection module includes an accelerometer sensor to sense the speed of the main body. The alarm module includes an alarm speaker and several alarm indicator lights. The control module is electrically connected to the gas detection module, the stationary detection module, and the alarm module. The battery is electrically connected to each module. This significantly expands the uses of the intercom and effectively improves the safety of firefighters during fire rescue operations.
Owner:许淑卫

Optimization control method and system for reactive compensation of power distribution network

The invention discloses an optimal control method and system for reactive power compensation of a power distribution network, and the method comprises the steps: building a multi-target reactive power optimization model of the power distribution network based on the system parameters of the power distribution network, and carrying out the optimal control of the reactive power compensation of the power distribution network under the constraint condition of the multi-target reactive power optimization model of the power distribution network, solving the target function of the multi-target power distribution network reactive power optimization model by adopting a multi-target whale optimization algorithm to obtain an iterative optimization solution set output by the multi-target power distribution network reactive power optimization model, and processing the multi-target power distribution network reactive power optimization model based on the iterative optimization solution set and an improved multi-target grey wolf optimization algorithm to obtain a multi-target power distribution network reactive power optimization model. And taking a result output by the multi-target power distribution network reactive power optimization model as a node configuration optimal solution set of the power distribution network, and controlling the power distribution network by using the node configuration optimal solution set. According to the optimal control method and system for the reactive compensation of the power distribution network, the optimal control effect of the reactive compensation of the power distribution network is improved.
Owner:STATE GRID ECONOMIC TECH RES INST CO LTD +1

Safety protection device for chemical engineering

The utility model discloses a safety protection device for chemical engineering, which comprises a feed hopper and a safety filter screen, the top end of the feed hopper is detachably provided with a protective cover, the top end of the protective cover is communicated with a feed pipe, the top end of the feed pipe is in threaded connection with a sealing cover, and a fixed cylinder is inserted into the feed hopper. The safety filter screen is installed on the bottom side of the interior of the fixing cylinder, a top ring is arranged at the position, below the fixing cylinder, in the feeding hopper, the bottom end of the top ring is fixedly connected with a plurality of connecting rods, the connecting rods are all in sealed sliding fit with the feeding hopper, and the bottom ends of the connecting rods are fixedly connected with a lifting ring; and the fixed cylinder and the safety filter screen can be conveniently ejected out from the interior of the feeding hopper, and people can conveniently take out the safety filter screen from the interior of the feeding hopper.
Owner:JIANGSU YINGKE ENG DESIGN RES CO LTD

A Container Ship Track Prediction Method Based on EMD-PSO-GRU-RBFNN

This invention discloses a container ship trajectory prediction method based on EMD-PSO-GRU-RBFNN, belonging to the field of intelligent shipping technology. The method takes ship AIS data as input, including time, longitude, latitude, speed, and heading angle information; preprocesses the AIS data to divide it into training and test sets; constructs a trajectory prediction model, calculates the difference between the predicted values ​​of the training set and the actual ship position coordinates to obtain the residual signal; adaptively decomposes the residual signal using empirical mode decomposition to obtain intrinsic mode components and residual components; constructs prediction models for high-frequency and mid-to-low-frequency components, reconstructs the prediction results of each component to obtain the residual prediction value, and superimposes it with the baseline prediction results of the test set to obtain the corrected test set output; the corrected test set output is then evaluated. This invention can model and compensate for trajectory errors at different frequency scales, improving the stability and reliability of trajectory prediction.
Owner:GUANGDONG OCEAN UNIVERSITY

Task scheduling method and device, electronic equipment, storage medium and program product

The invention discloses a task scheduling method and device, electronic equipment, a storage medium and a program product, and relates to the field of big data, and the method comprises the steps: obtaining a task environment state constructed by a to-be-scheduled task and a current data resource environment; calling a preset prompt generator, determining a target scheduling task from the task environment state, and generating a prompt word corresponding to the target scheduling task and the data resource environment; and inputting the cue word into a preset large model to obtain a scheduling scheme of the target scheduling task, and scheduling the target scheduling task based on the scheduling scheme. The technical problem that task scheduling is not efficient enough is solved.
Owner:CHINA MOBILE INFORMATION TECHNOLOGY CO LTD +1

Anti-falling device for traction steel cable

A device for preventing a traction steel cable from falling comprises two bottom plates hinged to each other, the upper portion of each bottom plate is provided with a group of bearing seats, each group of bearing seats is rotatably connected with a roll shaft, the steel cable crosses a coal pile under the guidance of the bearing seats and the roll shafts, a lead screw for adjusting the included angle of the two bottom plates is arranged between the two bottom plates, and a fixing rod is arranged on the outer side of each bottom plate. The two hinged bottom plates are placed at the top of a coal pile, so that the steel cable can leave the coal pile on the two sides of the coal pile and is prevented from falling into the coal pile, the outer contour diameter of each bearing seat is larger than the diameter of the roller shaft, and the steel cable can slide between the bearing seats on the two sides when bypassing the device, so that the steel cable can be prevented from being separated from the device; the rotating roll shaft can isolate the steel cable from the coal pile and prevent the steel cable from falling into the coal pile, sliding friction of the steel cable and the roll shaft is converted into rolling friction, friction force is greatly reduced, abrasion of the steel cable is reduced, the included angle of the two bottom plate supports can be adjusted through the lead screw, and the device can adapt to inclination angles of the tops of different coal piles. Meanwhile, the distance between the steel cable and the top of the coal pile can be adjusted, the steel cable is further prevented from making contact with the coal pile, the fixing rods are inserted into the coal pile, the device and the coal pile can be better fixed, and the device is prevented from shaking when pressed.
Owner:SHANTOU POWER PLANT OF HUANENG (GUANGDONG) ENERGY DEVELOPMENT CO LTD

A screw jack device for large workpiece support levelling

The utility model relates to a screw jack device for large -scale work piece support leveling, including support frame, screw rod, hand wheel, bracket and bolt, support frame whole presents the trapezoidal structure of little up big, is equipped with the mounting hole on the support frame, is equipped with the stop hole on the upper portion of mounting hole, hand wheel is installed in the stop hole, and can rotate relative to support frame, screw rod lower part passes in hand wheel and mounting hole in proper order, and is fixedly connected through trapezoidal thread and hand wheel screw thread cooperation, upper portion passes through bolt and bracket fixed connection, the utility model discloses through support frame adopts the trapezoidal structure of little up big, greatly enhanced the overall rigidity, effectively reduced the risk of falling when supporting large -scale work piece, provides the stable support foundation for large -scale work piece, guarantees the security of operation process, simultaneously through the trapezoidal thread cooperation of hand wheel and screw rod, single person can easily realize the lifting operation of screw rod, need not many people cooperation, significantly improves the operation efficiency, can satisfy the demand of large -scale work piece support leveling fast.
Owner:XIANGYANG WU ER WU PUMP IND

A transformer integrated cooler set and a transfer device thereof

The application discloses a transformer integrated cooler group and a transfer device thereof, and relates to the technical field of transformer manufacturing equipment.The transformer integrated cooler group comprises cooler group bodies, a frame and mounting supports, the cooler group bodies are provided in plurality, the plurality of cooler group bodies are fixedly arranged on the mounting supports, the mounting supports are fixedly arranged on the frame, and the cooler group bodies are located on the side of the frame which is far away from the transformer body when the frame is located at the mounting position.The plurality of cooler group bodies are pre-installed on the mounting supports of the frame, and the frame is integrally carried to be further installed on the transformer body, so that the installation site of the transformer is saved, the installation process of the transformer cooler group is simplified, the input of the workers is reduced, and the installation process performance is improved.
Owner:BAODING TIANWEI BAOBIAN ELECTRICAL

Power grid fault traveling wave positioning method based on fusion optimization algorithm

The application provides a power grid fault traveling wave positioning method based on a fusion optimization algorithm, comprising: establishing a dynamic virtual fault framework model of a power grid, randomly generating a plurality of virtual fault particles containing position coordinates, and constructing an initial virtual fault particle cluster; using a shortest path algorithm to calculate the topological path length of each virtual fault particle in the virtual fault particle cluster to all measurement points in the power grid, and then calculating a virtual fault space-time feature vector; setting the traveling wave arrival time when a real fault occurs as a target clustering centroid in a feature space, and calculating a feature matching fitness; constructing a non-convex optimization problem with the optimal feature matching fitness as a target, solving the problem using a fusion optimization algorithm, and thus obtaining a fault positioning result and a traveling wave velocity, so as to realize traveling wave positioning. The application can solve the problems of local optimum, slow convergence speed and high calculation cost in the prior art.
Owner:EAST CHINA JIAOTONG UNIVERSITY +1

Point pair registration method and system based on feature guidance and dual constraints

ActiveCN122089799BStrong anti-interferenceImprove robustnessImage analysisLocal optimumPoint cloud
The application discloses a point pair registration method and system based on feature guidance and double constraints, and belongs to the technical field of computer vision and robot grabbing. The method aims to solve the problems of recognition failure and insufficient estimation accuracy of traditional methods when parts are blocked and stacked, and point cloud features are not obvious. The scheme adopts a two-stage optimization strategy. Firstly, in the coarse registration stage, an adaptive sampling PPF algorithm guided by geometric features is proposed. By preferentially sampling points in the edge, curvature and other feature obvious areas, the robustness and efficiency of matching are improved. Secondly, in the fine registration stage, an ICP algorithm with multi-constraint optimization is proposed. The pose result obtained by coarse registration is used as the initial value. Through rotation and angle constraint, a multi-objective optimization function is constructed to guide the fine registration process to converge in the correct direction and avoid falling into local optimum, thereby ensuring the accuracy and physical feasibility of the final pose estimation. The application significantly improves the accuracy of industrial part pose recognition.
Owner:HUNAN UNIV

Cluster artificial potential field improvement method and device based on regional threat degree

ActiveCN120215491Bavoid falling intochange direction of motionControl setSimulation
The embodiment of the application discloses a cluster artificial potential field improvement method and device based on a region threat degree; the method comprises the following steps: acquiring a static obstacle position; establishing a multi-agent cluster structure, and adopting a second-order consistency algorithm to form following; when a moving queue is a desired queue, obstacle avoidance control is performed through an artificial potential field method to obtain an overall following path of the cluster; according to the obstacle avoidance path, the second-order consistency algorithm is adopted to perform path following to control the cluster to avoid obstacles and reach a target point; by introducing second obstacle position information and threat weight information, the size and direction of repulsion force suffered by the cluster are adjusted; by introducing position information and threat weight information of obstacles in a farther range, the size and direction of repulsion force suffered by the cluster are adjusted, so that the moving direction of the cluster is changed, and the cluster is prevented from falling into a local minimum value trap region.
Owner:AEROSPACE SHENZHOU AIRCRAFT +1

Zero-carbon airport bipv photovoltaic direct-drive low-voltage lighting system

This invention relates to the field of electronic information technology and discloses a zero-carbon airport BIPV photovoltaic direct-drive low-voltage lighting system. It addresses the problem in traditional methods where the MPPT algorithm easily gets trapped in local optima under dynamic shading and irradiance variation conditions, failing to achieve efficient global power point tracking. The method includes: a data acquisition module that collects photovoltaic array voltage, current, and power parameters; an environmental monitoring module that detects environmental changes and generates variation signals using irradiance sensors and cameras; an algorithm initialization module that sets the search range and divides the power curve region based on data and signals; a global search module that scans multiple peaks and traverses the global space to identify the maximum power point; a local optimization module that finely tracks and corrects the step size for peak regions; and a control output module that generates commands to drive the inverter to adjust its operating point and provides status feedback. Through module collaboration, efficient operation of the photovoltaic direct-drive low-voltage lighting is achieved, making it suitable for zero-carbon airport environments.
Owner:GUIZHOU AIRPORT INTELLIGENT TECH CO LTD

OCA (optical clear adhesive) defoaming device

The utility model discloses an OCA optical cement defoaming device which comprises a vacuum box, a cover plate is hinged to the top of the vacuum box, a connecting pipe is arranged on the left side of the vacuum box, a vacuum pump is fixedly connected to the end of the connecting pipe, a connecting plate is fixedly connected to the upper portion of the side face of the vacuum box, and a dust removal mechanism is arranged on the surface of the connecting plate. The dust removal mechanism comprises a supporting plate, a first motor is fixedly installed on the outer side wall of the supporting plate, and a threaded lead screw is arranged on the inner side wall of the supporting plate. By means of the dust removal mechanism, solid dust particles left on the surface of an OCA raw material can be effectively removed before vacuum bubble removal is conducted on the OCA raw material, the raw material is in a clean state to be subjected to vacuum machining treatment, the treatment effect of follow-up vacuum machining is guaranteed, the dust removal mechanism can be pushed to ascend in cooperation with an air cylinder, and the dust removal efficiency is improved. And therefore, OCA adhesive tape raw materials with different thicknesses can be conveniently cleaned, and the adaptability of the dust removal mechanism to the raw materials is improved when the dust removal mechanism is used.
Owner:JINGGANGSHAN SHENLI TECHNOLOGY CO LTD

Underground air dust removal equipment for phosphorite mining

PendingCN121797019AAvoid high deviations from preset requirementsBest dust collection heightHuman health protectionUsing liquid separation agentWide areaMining engineering
The invention discloses underground air dust removal equipment for phosphorite mining, and relates to the technical field of air dust removal. The fixed end of an elastic telescopic column is fixedly mounted at the bottom of a bottom plate, a fixed plate is fixedly mounted on the front face of the fixed end of the elastic telescopic column, and one end of a long-strip-shaped rod is fixedly mounted at the bottom of the fixed plate; a round hole is formed in the front face of the square box, the square box is used for controlling the descending speed of a bottom plate at the top of the elastic telescopic column, the situation that the height of the spraying machine deviates from the preset requirement due to the fact that the elastic telescopic column descends too fast is avoided, and it is guaranteed that the spraying machine is always at the optimal dust removal height; the moving range of the spraying machine along with the carrier plate is expanded, multi-direction and wider-area spraying dust falling can be achieved, the problem that dust removal is not thorough in a single fixed range when the underground space is complex is solved, and the comprehensiveness and flexibility of dust removal are improved.
Owner:KUNMING UNIV OF SCI & TECH

Power transmission line fault identification method and direct current test sender

The application belongs to the technical field of power equipment fault diagnosis, and specifically discloses a power transmission line fault identification method and a direct current test instrument. The power transmission line fault identification method comprises the following steps: S1, obtaining fault signals and environmental temperature and humidity data of a to-be-tested line and performing pretreatment to obtain fault characteristic data; S2, inputting the fault characteristic data as test samples into a WOA-KFCM fault detection model, wherein the WOA-KFCM fault detection model comprises a WOA algorithm unit and a KFCM algorithm unit; and S3, calculating the initial clustering center of the KFCM algorithm unit through the WOA algorithm unit, and outputting the line fault category through the KFCM algorithm unit according to the initial clustering center and the test samples. Through the direct current test instrument and the above-mentioned fault identification program, the content of the power transmission line fault can be quickly identified, and the troubleshooting efficiency and the identification accuracy of the complex fault type of the power transmission line are effectively improved.
Owner:GUANGXI DIANYOU TECH DEV CO LTD

A structural search method for multi-output dendritic neuron models for industrial classification tasks

PendingCN122088559ASolve the problem of low convergence efficiencyGuaranteed Search AccuracyNeural architecturesAlgorithmEvolutionary computation
This invention relates to the field of neural network architecture search and industrial intelligent processing technology, and discloses a structure search method for multi-output dendritic neuron models for industrial classification tasks. The method includes: initializing the synaptic connection weights and dendritic threshold parameters of the multi-input multi-output dendritic neuron model to generate an initial population; uniformly dividing the initial population into several subpopulations of equal size; calculating the temporal and spatial criteria for each subpopulation after task allocation and optimization, and dynamically allocating evolutionary computational resources for each subpopulation based on the fitness change rate represented by the temporal criterion and the population distribution state represented by the spatial criterion; implementing an accelerated sharing penalty mechanism to adjust fitness values ​​according to the crowding degree among individuals to maintain solution set diversity; and updating each subpopulation. This invention solves the problem of low convergence efficiency caused by uniform resource allocation in traditional large-scale multi-objective evolutionary algorithms during neural network architecture search.
Owner:YANSHAN UNIV

A method, system, device and storage medium for predicting runoff sediment content

The application provides a runoff sediment content prediction method, system, device and storage medium, belongs to the river sediment prediction technical field, and includes the following steps: introducing the position updating mechanism of the spotted hyena optimization algorithm and the position updating mechanism of the gradient optimization algorithm in the position updating mechanism of the gorilla troop optimization algorithm to obtain an improved gorilla troop optimization algorithm; the model parameters of a BiLSTM model are optimized by using the improved gorilla troop optimization algorithm, and a runoff sediment prediction model is obtained by training the BiLSTM model after parameter optimization. The runoff sediment content prediction result and the prediction accuracy are obtained based on the runoff sediment prediction model. Strong support is provided for ecological protection and engineering planning.
Owner:NORTHWEST A & F UNIV

Blasting vibration peak velocity prediction method fusing parameter uncertainty and data driving optimization

PendingCN121960111AConfidence of prediction resultsFully reflect the true fluctuation characteristicsBiological modelsDesign optimisation/simulationOriginal dataEngineering
The invention provides a blasting vibration peak velocity prediction method fusing parameter uncertainty and data-driven optimization, which comprises the following steps of: firstly, acquiring data such as blasting parameters, lithologic indexes, geological conditions and actually measured vibration peak velocity (PPV), and establishing a basic database; a prior probability model is constructed, a joint uncertainty model is established in combination with probability disturbance and a fuzzy triangular number, a multi-dimensional disturbance sample is generated through a joint central value and a joint standard deviation and is fused with original data, and an extended database is formed. Feature analysis is carried out on the fused data, and input variables which have obvious influence on the vibration peak velocity (PPV) are screened; and constructing a BP neural network model based on the screened features, carrying out global optimization on a network weight and a threshold by adopting a PSO algorithm, and then carrying out local fine tuning by utilizing Adam. Finally, through training and verification, prediction of the vibration peak velocity (PPV) is realized, and model precision is evaluated through RMSE, MAE, MAPE, Rand other indexes. The influence of rock and soil parameter uncertainty on prediction precision can be effectively processed, and the reliability and applicability of blasting vibration prediction are improved.
Owner:CHINA THREE GORGES UNIV

A method for constructing a road cavity detection model based on three-dimensional ground penetrating radar

This invention discloses a method for constructing a road cavity detection model based on 3D ground-penetrating radar (GPR). The method includes constructing a hybrid spatiotemporal detection model, which comprises a feature preprocessing module, a soft clipping module, a spatiotemporal feature extraction module, and an output module. The feature preprocessing module performs feature pre-extraction on preprocessed and labeled data, outputting a pre-extracted feature map. The soft clipping module performs spatiotemporal perception on the pre-extracted feature map, outputting a clipped feature map. The spatiotemporal feature extraction module analyzes the clipped feature map, outputting feature information with global spatiotemporal information. The output module integrates the feature information and predicts the existence of cavities and the range of their occurrence channels. By combining the correlations between data in the spatiotemporal dimension, it accurately detects underground cavities, solving the problems of high computational load and difficulty in adjusting model parameters in existing 3D GPR high-resolution data interpretation. This provides an efficient and reliable technical solution for intelligent road cavity detection and infrastructure safety maintenance.
Owner:JIANGSU CHENGAN PIPE NETWORK TECHNOLOGY CO LTD

A double-sided automatic spot welding machine for robot manufacturing

PendingCN122703121Aavoid false connectionAvoid affecting welding quality
The application provides a double-sided automatic spot welding machine for robot manufacturing, and relates to the technical field of battery spot welding equipment. The double-sided automatic spot welding machine comprises a welding mounting piece, two spot welding connecting pieces are mounted in the welding mounting piece, the two spot welding connecting pieces are symmetrically mounted, a clamping positioning piece is mounted in the welding mounting piece, the clamping positioning piece is located between the two spot welding connecting pieces, a spot welding device is mounted on each of the two spot welding connecting pieces, a cooling stop piece is mounted on each of the two spot welding devices, and a wear self-checking part is mounted on each of the two spot welding connecting pieces. The spot welding device can automatically polish the end of the welding needle to prevent the end of the welding needle from being continuously thickened by an oxidation layer and affecting the welding quality when the welding needle is extruded and attached to the battery terminal. The double-sided automatic spot welding machine can automatically polish and prevent false connection, and the oxidation layer is easy to be generated after long-term use of the welding needle. The polishing and cleaning period is short.
Owner:伽利略(天津)技术有限公司

An optimization method based on chaotic multi-strategy fusion to improve whale algorithm

The present invention relates to an optimization method based on a chaotic multi-strategy fusion improved whale algorithm, and belongs to the field of mechanical engineering technology. First, a tension / compression spring design problem model is constructed, and then a plurality of improvement strategies are integrated to improve the whale optimization algorithm, and then the improved whale optimization algorithm is used to optimize the mathematical model, and finally, the optimal variable combination and optimal target value of the tension / compression spring model are output. The present invention integrates a plurality of improvement strategies to improve the initial population quality and population diversity of the whale optimization algorithm, improve the convergence speed and exploration ability, avoid the tension / compression spring design method from falling into the local optimum, and make the algorithm have better optimization accuracy when solving the tension / compression spring design problem.
Owner:KUNMING UNIV OF SCI & TECH

A material carrying auxiliary equipment for construction of a flexible direct current station

The utility model provides a kind of material handling auxiliary equipment for soft straight converter station civil construction, it is related to civil construction technical field, including: frame body;Two mobile wheels are installed on the frame body, the lower end of frame body is welded with support frame, the upper end of frame body is installed with storage hopper by bolt, the bottom surface of storage hopper is set as inclined plane, and the front end of storage hopper is provided with discharge gate, the front end of storage hopper is installed with two rotatable rotary plates, connecting plate is connected between two rotary plates, the right end of connecting plate is connected with swing plate by pin shaft, the left side of storage hopper is installed with control lever by bearing;The bottom surface of the utility model's storage hopper is inclined plane, material is naturally gathered to the discharge gate of the front end of storage hopper using gravity, operator can realize sealing plate rising by rotating handle close to the left side of push frame, make sealing plate open upward, complete discharge gate opening, by controlling handle rotation amplitude, the rising height of sealing plate can be adjusted, different unloading rate control is realized.
Owner:SHANGHAI POWER CONSTR ENG CO +1

Rice field greenhouse gas collecting device

The utility model relates to the technical field of greenhouse gas collection, and discloses a rice field greenhouse gas collecting device which comprises a mounting plate and four inserting holes formed in the periphery of the top end of the mounting plate, an inserting pipe is fixedly communicated with the middle of the bottom end of the mounting plate, and a water collecting assembly used for collecting water drops is arranged in the middle of the top end of the mounting plate. The top end of the water collecting assembly is fixedly connected with a collecting barrel used for collecting gas, the middle of the top end of the collecting barrel is fixedly connected with a sealing connecting block, the water collecting assembly comprises a gas collecting pipe fixedly connected to the top end of the mounting plate, and the top end of the gas collecting pipe is fixedly connected with a water collecting ring; water drops are formed on the inner wall of the water collection ring in the gas collection process, flow into the water collection tank through the inclined inner wall to be collected and are intensively discharged through the water drainage pipe, the situation that the water drops flow into soil to affect the growth environment of the rice field is avoided, and the balance degree and stability of the device are guaranteed through the mounting plate.
Owner:宜宾市农业科学院

Mobile robot path planning method and device based on B spline, medium and equipment

The invention discloses a mobile robot path planning method and device based on a B spline, a storage medium and electronic equipment. The method comprises the following steps: initializing a grid map, and determining the position of each node; constructing an RRT * algorithm, removing redundant points generated by the RRT * algorithm based on a node pruning strategy to obtain an improved RRT * algorithm, and performing global optimal path planning on the mobile robot based on the improved RRT * algorithm to obtain a global optimal path; key nodes in the global optimal path are extracted, the key nodes serve as local target points of an improved DWA algorithm, and the optimal path of the mobile robot is determined through the improved DWA algorithm. According to the method, the RRT * algorithm is improved, redundant points are removed, the calculation amount can be reduced, the route planning distance can be shortened, and the route can be smoother by processing the global optimal route through the B spline curve. The global optimal path is optimized through the improved RRT * algorithm, so that local dynamic obstacle avoidance can be realized, and falling into local optimum is avoided.
Owner:HUBEI UNIV OF ARTS & SCI +1

Lotus root planting organic fertilizer spraying device

The utility model belongs to the field of pesticide spraying device, concretely is a kind of lotus root planting organic fertilizer pesticide spraying device, the bottom of spraying device is provided with locating plate, the upper portion of locating plate is inserted with antiskid rod, the bottom fixedly connected with locating plate has connecting column, the bottom fixedly connected with connecting column has bearing plate, when the spraying device of connecting column upper portion is moved by bearing plate, the pesticide spraying pipe of spraying device side portion can carry out pesticide application to lotus root pond, and the bottom of bearing plate is in contact with lotus root pond silt ground area, avoid spraying device in the process of moving to sink into silt ground, to reduce work intensity, while the end of bearing plate is provided with pry plate, so that in the process of bearing plate movement, when the protruding soil layer is encountered in moving path, it can also pass smoothly, the stop block can prevent steering rod from continuing to rotate when steering rod is in vertical state, so that the steering rod can be kept in place, and multiple antiskid rods can form a fence to avoid the spraying device from falling during movement.
Owner:HANGZHOU LIANYI AGRI DEV CO LTD

An improved near-infrared spectral wavelength selection and modeling method for artificial bee colony algorithms.

This invention discloses an improved near-infrared spectral wavelength selection and modeling method for artificial bee colony algorithms, comprising the following steps: data preparation, chaotic initialization, fitness evaluation, establishing a PLS model based on wavelength subsets, using the regularized fitness function of RMSECV as the fitness Fitnessxi of nectar source xi; searching for foraging bees; searching for observation bees; searching for scout bees; outputting the optimal wavelength subset Sbest and establishing the final PLS model. The beneficial effects of this invention are: the method effectively improves convergence speed and accuracy; chaotic initialization improves the quality of the initial population, avoiding the algorithm from prematurely falling into local extrema; the adaptive perturbation factor balances the algorithm's global search and local exploitation, improving the ability to find the optimal wavelength combination in high-dimensional discrete space, and the selected wavelength subset has stronger representativeness, resulting in a final PLS model with lower RMSEP (root mean square error of prediction) and better robustness.
Owner:ZHONGKEVOYE JIANGSU BIOLOGICAL CO LTD +1

Elephant nose structure of bionic elephant robot

The utility model provides an elephant trunk structure of a bionic elephant robot. The elephant trunk structure comprises a body, the front end of the body is provided with an elephant trunk mechanism, the elephant trunk mechanism comprises a flexible shell and a plurality of soft body units, each soft body unit is provided with an inertia measurement module, each soft body unit is provided with four SMA spring drivers, and each SMA spring driver is provided with an SMA spring. When the service object exceeds the monitored electronic fence area, the whole mechanism moves to the vicinity of the service object and drives the trunk mechanism, so that the trunk mechanism straightens and blocks the service object to prevent the service object from crossing the electronic fence area, thereby preventing the service object from being caught in a dangerous environment, and reducing the probability of safety accidents. And the whole robot adapts to the requirements of different service objects, the combination of science and technology and humanistic care is promoted, and the popularization value is high.
Owner:WUCHANG SHOUYI UNIV