152results about How to "Reduce processing complexity" patented technology

The invention discloses a three-dimensional finite element simulation method for a complex slope excavation unloading process, which comprises the following steps of: 1) constructing a three-dimensional model of a complex slope, and establishing a finite element grid; 2) inputting boundary conditions of the model and material parameter information of each stratum; 3) calculating and simulating an initial stress field of the slope before excavation; (4) according to the initial stress field, the unloading load of the slope excavation part is calculated; (5) finite element calculation is conducted on stress deformation of the excavated slope; according to the method, the high-precision three-dimensional finite element model is established, various material parameters and actual boundary conditions are combined, the stress change and the unloading effect of the slope in the excavation process are simulated, the stress redistribution in the unloading process is accurately reproduced, the prediction precision of local instability and stress concentration areas is improved, and the prediction accuracy of the slope is improved. Therefore, a scientific basis is provided for safety assessment of slope excavation.

The invention relates to the technical field of data analysis, and discloses a laboratory data analysis method and system based on a machine learning technology. The method comprises the following steps: firstly, introducing an adaptive threshold, and identifying and deleting abnormal data in original laboratory data by using an improved isolated forest algorithm to obtain a processed laboratory data set; secondly, improving the generative adversarial network to obtain an improved generative adversarial network filling model, and performing data filling on the processed laboratory data set for multiple times to obtain a processed laboratory data set; according to errors of experimental result data, an improved black-wing optimization algorithm is used for searching for the minimum error, and optimization of laboratory data is achieved; and finally, establishing a laboratory database, performing data storage on the processed laboratory data set, and completing laboratory data analysis. By analyzing and processing the laboratory data, the purpose of analyzing the laboratory data is achieved, and the method is accurate and objective.

The invention belongs to the field of MEMS sensors, and particularly relates to a low-temperature-drift MEMS resonant pressure sensor sensitive chip and a preparation method thereof. Comprising a cap layer, a resonance layer, a pressure sensing layer and an isolation base which are sequentially bonded and connected from top to bottom, the cap layer is provided with an electrode through hole and a vacuum cavity groove, and a getter is sputtered in the vacuum cavity groove; two Si-SiO2 composite resonators and a plurality of lead wire discs are arranged on the resonance layer, and a metal electrode is arranged on each lead wire disc; the number of the metal electrodes is equal to that of the cap layer electrode through holes, and the metal electrodes are located under the electrode through holes; two groups of silicon islands are arranged on the front surface of the pressure sensing layer, and three rectangular sensitive films with the same size are arranged on the back surface; the isolation base is a glass table; according to the invention, the output sensitivity of the sensor is greatly improved, the chip processing complexity is reduced, and the introduction of additional stress and materials is reduced.

The invention relates to an intelligent industrial data clustering and grouping method, system and device and a medium, and the method comprises the steps: carrying out the standardization preprocessing of collected original industrial data, obtaining standard industrial data, and constructing a high-dimensional feature space according to the standard industrial data; performing industrial feature extraction and dimension reduction on the high-dimensional feature space to obtain a low-dimensional feature vector; performing preliminary grouping on the low-dimensional feature vectors according to a preset clustering algorithm to obtain a first clustering result; performing secondary adjustment on the first clustering result to obtain a second clustering result; and performing industrial scene simulation verification on the second clustering result to obtain a verification result, and performing optimization adjustment on the second clustering result according to the verification result to obtain a target clustering combination. According to the method, a more reasonable clustering result can be obtained, and the accuracy and applicability of the clustering effect are improved.

The medium-temperature radial forging method comprises the steps that pretreatment is conducted, specifically, a niobium-tungsten alloy extrusion bar blank is heated for 60-180 minutes at the temperature of 750-950 DEG C, rapid forging and straightening are conducted, and a medium-temperature radial forging bar blank is obtained and annealed for 60-120 minutes at the temperature of 1250-1450 DEG C; medium-temperature radial forging is conducted, specifically, a two-step method is adopted, in the first step, a bar blank is preheated to 80-100 DEG C and coated with Ta1350 high-temperature glass powder, heat preservation is conducted for 90-180 minutes at the temperature of 1050-1150 DEG C, and the bar blank is forged into a bar with the diameter of 70 + / -1 mm in the mode that the diameter is reduced by 7-10 mm every time; and in the second step, the heating and coating processes are repeated, the diameter is reduced by 5-7 mm every time, and the bar with the required specification is manufactured. By optimizing the medium-temperature forging and annealing process, the fine grain structure is controlled, the high-temperature mechanical property, creep resistance and oxidation resistance of the material are improved, and the material is suitable for aerospace engines and other high-temperature and high-pressure scenes. Compared with a traditional method, the technology improves the yield, shortens the production period, reduces the labor intensity, is suitable for large-scale production, reduces surface air suction, oxidation and burning loss, and improves the production efficiency and the finished product quality.

The invention discloses a metal piece service life prediction method and device, a controller and a storage medium, relates to the technical field of metal material performance prediction, and at least solves the problem of low prediction result precision of a prediction model constructed on the basis of uniaxial smooth sample test data. The method comprises the following steps: determining a first pure fatigue life of a target metal piece in a notch structure in a non-notch smooth structure state, target holding time of creep and a target notch stress concentration coefficient; obtaining a corresponding target preset model associated with the target metal material of the target metal piece; the target preset model represents the stress concentration coefficient, the load holding time, and the mapping relation between the pure fatigue service life and the creep-fatigue service life in the unnotched smooth structure state; and based on the target preset model, obtaining the target service life of the target metal piece under the first pure fatigue life, the target holding time and the target notch stress concentration coefficient.

The present application discloses a steam turbine main steam valve assembly and a steam turbine, which relates to the field of steam turbines. The valve assembly includes a valve body, a valve core located in the valve body, and a driving component installed outside the valve body for driving the valve core to move, wherein the valve body is provided with an upper horizontal channel connected to the high-pressure steam end, a lower channel connected to the steam discharge pipe, and a vertical channel connecting the upper horizontal channel and the lower channel, and a working port is formed at the connection between the vertical channel and the upper channel. The automobile turbine main steam valve assembly adopts a valve core with an adaptive expansion area, and uses the pressure on the pressure side to achieve adaptive expansion, which enables the new technology to automatically adjust the expansion state of the valve core according to pressure changes during operation, thereby achieving a more ideal sealing effect under different working conditions. Since the valve core can achieve automatic expansion under high pressure, the sealing effect is enhanced.

The optical detector protection device comprises a supporting assembly, a control assembly, a protection assembly and a movement assembly, parts in the supporting assembly are connected and fixed through threads, and the protection assembly is fixed to the positions corresponding to the parts in the supporting assembly through screws and bolts. The control assembly and the movement assembly are fixed to the supporting assembly. According to the utility model, the control assembly controls the motion assembly to drive the shielding plate in the protection assembly to move, so that the shielding plate in the protection assembly can be rapidly and stably opened when the detector is used, the experiment progress is accelerated, the complex process is reduced, and the detection surface of the detector is protected from being influenced and damaged by external factors when the detector is not used. Meanwhile, the detector protection device has the advantages of quick and efficient response, simple operation, convenient installation mode and small occupied experiment space.

The invention relates to the technical field of image processing, and particularly discloses a virtual clothes changing system based on an AI algorithm, and the system comprises a preprocessing module which carries out the filling, size adjustment and normalization processing of a first image; obtaining a user portrait and obtaining a target image; the visual large model processing module is used for mapping the second clothing image, the noise image and the target image to a high-dimensional space; performing feature extraction on the second clothing image in the high-dimensional space to obtain a first feature; splicing the noise image and the target image in the high-dimensional space to obtain a standard image, and performing feature extraction on the standard image to obtain a second feature; fusing the first feature and the second feature, and obtaining a virtual fitting image; and the post-processing module is used for obtaining a fitting portrait and obtaining a virtual fitting effect image according to the fitting portrait and the user background. According to the method, various types of clothes can be stably tried on, and meanwhile, natural textures, wrinkles and actual lengths of the clothes in a real dressing state are presented.

The present invention relates to the technical field of packaging materials, and discloses an antistatic composite packaging material and a preparation process thereof, the antistatic composite packaging material comprises: a base material layer, the base material layer is made of a polyester film or a hard paperboard material, and the base material layer is used as the bottommost layer of the composite material; the metal oxide static electricity absorption layer is made of aluminum oxide or an oxidation material; the metal foil layer is made of an aluminum foil material; a polyurethane protective film is adopted as the outer layer protective film; and the surface antistatic coating is made of a polytetrafluoroethylene material. Through the multi-layer structure design, the metal oxide static electricity absorbing layer (such as aluminum oxide or titanium oxide) and the metal foil conducting layer are adopted, and the long-acting antistatic effect is provided. By means of the design, the problems that a traditional antistatic coating is prone to abrasion and the efficacy is decreased progressively are solved, it is ensured that the material can still keep stable antistatic performance after being used for a long time, and the material is especially suitable for products needing to be stored and transported for a long time.

The utility model discloses an auxiliary feeding device for a guide bar elevated frame of a drawing frame, which belongs to the technical field of cotton sliver feeding of the drawing frame, and comprises a guide bar elevated frame, a feeding cylinder, an auxiliary feeding device and a control device, the positioning part is arranged on the feeding cylinder; the positioning part comprises two arc-shaped positioning plates, a first sleeve plate and a second sleeve plate are arranged on the two arc-shaped positioning plates respectively, and the first sleeve plate and the second sleeve plate are connected through a fixing assembly; according to the scheme, cotton slivers pass through the upper side of the feeding cylinder and then are fed into the drawing frame, the functions of supporting and erecting the cotton slivers can be achieved, the further positive feeding function on the cotton slivers can be achieved through the rotating feeding cylinder, the cotton slivers can be fed more positively and stably, and the cotton sliver feeding efficiency is improved; the stability of the cotton sliver feeding process can be improved through the positioning component, the conditions of deviation and mutual winding during cotton sliver feeding can be greatly avoided, and the cotton sliver feeding effect is remarkably improved.

The invention provides a cascade coding and decoding method based on RS-convolutional codes in an FSO system. Belongs to the technical field of atmospheric laser communication. The method comprises the following steps of: firstly, inputting a source data sequence into a sparse code encoder for blocking and RS (Reed-Solomon) coding to generate an RS code word containing error correction redundancy; and then, the RS code words are rearranged by using an interleaving technology, so that the occurrence of continuous errors is reduced. And then, after the interleaved RS code words are subjected to parallel-serial conversion, the RS code words are input into a dynamically-adjusted convolutional encoder, encoding parameters are dynamically adjusted according to the current communication environment, and a redundancy-enhanced encoding sequence is generated. After signals are sent and received, the interleaved RS code words are recovered through iterative decoding, and finally, the RS decoder corrects symbol errors and recovers source data by using dynamically adjusted decoding parameters. In the whole process, data transmission in the FSO system is realized through an RS-convolutional code cascade coding and decoding method, and the reliability and accuracy of data transmission are improved.

The utility model relates to a torque fixing sleeve structure for a built-in motor of an electric power-assisted bicycle. The torque fixing sleeve structure comprises a center shaft, a torque sensor, a shell, a circlip for a shaft, a torque fixing sleeve and a fixing screw, the torque sensor is sleeved on the middle shaft, and the axial movement of the torque sensor is limited by the elastic retainer ring for the shaft; the torque sensor is sleeved with the torque fixing sleeve, four right positioning grooves and two left positioning grooves are formed in the two ends of the torque fixing sleeve respectively, and the right positioning grooves and the left positioning grooves are clamped with the inner wall of the shell. The torque fixing sleeve is fixed to the shell through a fixing screw, a wiring port and a wiring channel groove are formed in the torque fixing sleeve, and a sensor wiring harness penetrates through the wiring port and is contained in the wiring channel groove. The problems of high cost, complex structure and difficult maintenance are solved.

This utility model discloses a rotary dial switch and a flashlight. The rotary dial includes a button assembly, a dial assembly, and a lamp holder assembly. The lamp holder assembly includes a lamp holder and a built-in PCB board. A first switch and a second switch are disposed on the PCB board. The lamp holder has a mounting through hole perpendicular to the PCB board, and pin holes and positioning holes are provided around the hole. The dial assembly includes a T-shaped dial, a dial bracket, a limiting pin, a positioning head, and a spring. The inner wall of the dial's rotating part has a limiting pin movable groove and a gear positioning groove. A handle on the dial bracket is used to trigger the first switch. The button assembly includes a button and a spring, which can trigger the second switch. The technical solution provided by this utility model avoids the problems of existing conventional magnetic and mechanical switches, optimizes space utilization, and reduces the requirements for precision machining.

A rapid verification method for adaptive radiotherapy dose consistency in the TOMO system is disclosed, relating to the field of medical information technology, particularly TOMO radiotherapy information processing. The method includes: acquiring flux distribution data and the original region of interest (ROI) from the original radiotherapy plan; projecting the ROI onto the flux projection space based on the beam geometry parameters of the original radiotherapy plan, and establishing a mapping relationship as a reference index; acquiring the target ROI for the adaptive radiotherapy phase; updating the mapping relationship based on the flux distribution data and the target ROI, and using the mapping relationship as the target index; detecting the data consistency between the target index and the reference index, and determining the dose distribution change information of the target object. This application solves the technical problems in existing technologies where adaptive radiotherapy dose consistency verification relies on a high-load dose calculation engine for data reprocessing, resulting in large amounts of computational data, high system response latency, and inability to meet the timeliness requirements for online verification.

A new structure panel lamp, including section frame, diffusion plate, bottom plate and light emitting lamp strip. The section frame is provided with the first table part and the second table part which are arranged at intervals; further including the cross-over clamp, the first end of the cross-over clamp is kept fixed by the joint action of the bottom plate and the second table part, the tail end of the cross-over clamp abuts against the diffusion plate and makes the diffusion plate and the first table part form fixed. The utility model can realize the internal space of the edge of the panel lamp, and realizes the planarization of the bottom plate, reduces its processing complexity.

The utility model relates to the technical field of building construction, and discloses a concrete outer tank and a full-capacity low-temperature storage tank. The concrete outer tank comprises an outer tank body, at least two layers of annular reinforcing assemblies and axial reinforcing assemblies. The outer tank is of a concrete structure; the at least two layers of annular reinforcing assemblies are arranged in the axial direction of the outer tank, and the projection of each layer of annular reinforcing assembly on the horizontal plane is circular. The annular reinforcing assembly comprises at least two first retard-bonded prestressed tendons, the first retard-bonded prestressed tendons are arranged in the concrete in the circumferential direction of the outer tank, and the fixed ends and the tensioning ends of the first retard-bonded prestressed tendons form 180-degree included angles. The axial reinforcing assembly comprises at least two second retard-bonded prestressed tendons, and the second retard-bonded prestressed tendons intersect with the first retard-bonded prestressed tendons and are arranged in the concrete in the axial direction of the outer tank. The concrete outer tank solves the problem that an existing concrete outer tank is low in use safety.

The application discloses an automatic driving scene generation method, device and equipment based on a particle swarm algorithm, which comprises the following steps: generating an optimized smooth curve according to an original trajectory curve of an automatic driving vehicle based on a cubic Bezier curve; taking the minimum trajectory distance as the target, and optimizing and searching the vehicle trajectory by using a grid search algorithm to obtain a target trajectory curve; analyzing the vehicle action according to a plurality of continuous trajectory points of the target trajectory curve to obtain a vehicle action recognition result; performing parameter optimization iteration based on the particle swarm algorithm according to the target trajectory curve, the vehicle action recognition result and a scene weather intensity coefficient until a preset iteration condition is reached to obtain an optimized parameter population; and generating an automatic driving scene according to the parameters of the optimized parameter population to obtain a target generated scene. The application can solve the technical problem that the existing scene generation scheme based on a genetic algorithm has low calculation efficiency for high-dimensional parameters, requires a large number of parameter settings, is time-consuming and laborious, and cannot ensure the efficiency of scene generation.

The invention provides a long-wave and very-long-wave infrared all-silicon anti-reflection metasurface forming method and system. The method comprises the steps that S1, optical information of a high-purity silicon material is collected; s2, solving a complex refractive index parameter of the high-purity silicon material according to the optical information; s3, establishing a metasurface model according to the complex refractive index parameters; s4, obtaining a reflectivity curve of the high-purity silicon column structure based on the metasurface model; s5, obtaining the average reflectivity according to the reflectivity curve, and selecting the corresponding physical parameters of the high-purity silicon column structure under the condition that the average reflectivity is minimum; periodically arranging the physical parameters on a high-purity silicon substrate so as to form a target metasurface; the high-purity silicon column structure provided by the invention and the high-purity silicon substrate are made of the same material, so that the problems of thermal stress mismatch and easy falling caused by introduction of a new material are avoided, and the high-purity silicon column structure can be adapted to detectors working at normal temperature and low temperature.

The utility model discloses a cereal multi-feature recognition system, which comprises a first photographing assembly and a second photographing assembly. The first photographing assembly is located on one side of the transparent rotating disc and comprises a plurality of first cameras, the first cameras are obliquely arranged at intervals along the circumference around the vertical line of the first station detection point, and the first cameras all align at the first station detection point. The distances from the plurality of first cameras to the first station detection point are respectively the optimal focal lengths of the corresponding first cameras; the second photographing assembly is located on the other side of the transparent rotary disc and comprises a second camera, the second camera is perpendicularly aligned with the second station detection point, and the distance between the second camera and the second station detection point is the optimal focal length of the second camera. According to the utility model, the appearance quality detection result of grain samples, especially large grain samples such as corn and soybeans, can be improved, and calculation resources can be saved.

The utility model relates to the technical field of tinplate flower baskets, in particular to a falling performance detection device for a tinplate flower basket. The device comprises a top plate, supporting rods, a height adjusting mechanism, a base and a liquid leakage detection mechanism, the lower surface of the top plate is fixedly connected with the two symmetrically-distributed supporting rods, and the bottom ends of the supporting rods are fixedly connected with a supporting plate. Liquid leakage detection can be carried out through the liquid leakage detection mechanism under the condition that the upper portion of an iron drum is not punched, the detection safety performance is improved, the detection complexity is reduced, after the iron drum falls down, an electric push rod is started, the driving clamping plate moves rightwards, the iron drum is clamped through the driving clamping plate and the driven clamping plate, and the detection efficiency is improved. And then, under the work of a rotating motor, a passive clamping plate drives the iron drum to rotate, if leakage occurs to the iron drum, liquid is thrown out, in this way, the complex detection process is reduced, the device is safer, and the practicability of the device is improved.

The invention relates to the technical field of optical technology, in particular to a focusing method and device of a maskless photoetching machine, and the method comprises the following steps: S1, determining the initial position of a displacement platform, and collecting the light intensity of the initial position; S2, controlling the displacement platform to move on a z axis, and collecting the light intensity to determine the position when the light intensity is maximum; s3, driving the displacement table to move to a position which is spaced with the maximum value of the light intensity by a coarse step length; s4, performing coarse positioning by using a hill climbing method to determine an approximate position of a focal plane; s5, fine positioning of the focal plane: setting a fine step length, plus or minus a coarse step length near the step S4, driving the displacement table to move in the interval according to the length of the fine step length, and obtaining the maximum light intensity P1; and S6, determining an optimal focal position: continuously searching the optimal focal position near the focal point by adopting the hill climbing method, calculating an evaluation function value of each time, comparing the calculated value of this time with the database, determining a searching direction and a step length according to the change of the function value, and efficiently searching the optimal focal position.

The utility model relates to the technical field of gear reducers, and discloses a symmetrical hand-cranking gear reducer core device which comprises a mounting frame, the mounting frame comprises two end plates and two side plates which are symmetrically arranged, and a worm shaft is arranged between the two sides of the inner surfaces of the two end plates; and a first-stage driven bevel gear, a first rotating shaft and a second rotating shaft are sequentially arranged between the two sides of the inner surfaces of the two side plates, the worm shaft is in meshed connection with the first-stage driven bevel gear, and the first rotating shaft is fixedly connected with a second-stage driven bevel gear and a third-stage driving gear in a sleeving mode. According to the symmetrical hand-cranking gear reducer core device, the two end plates and the two side plates which are completely symmetrical are arranged, and except for the two first bearing holes formed in the inner side walls of the two side plates, the other sizes are the same; and the manufacturing cost of raw materials and the processing complexity can be greatly reduced.

The application discloses a vehicle-mounted camera anomaly detection method and device, equipment and a storage medium, relates to the field of vehicle engineering, and is applied to a target cloud and comprises the following steps: sending an anomaly detection instruction to a target vehicle terminal of a target vehicle based on a preset trigger condition to obtain a target media file; analyzing a target statistical characteristic of the target media file to obtain a first analysis result, determining a target detection model based on a target camera corresponding to the target media file, and performing reference area checking on the target media file by using the target detection model to obtain a corresponding second analysis result; determining a first confidence degree corresponding to the first analysis result and a second confidence degree corresponding to the second analysis result by using a target confidence degree algorithm, and fusing the first analysis result and the second analysis result based on the first confidence degree and the second confidence degree to obtain an anomaly detection result corresponding to the target camera. The application improves the accuracy and efficiency of vehicle-mounted camera anomaly detection.

The application provides a kind of underground pipeline pipe gallery resource interconnection method and device based on large language model, belongs to computer technology field, specifically includes obtaining the pipeline detection data of all underground pipelines in target area, constructs global topology knowledge graph;Extract local topology knowledge graph from global topology knowledge graph;The structured text is obtained by converting local topology knowledge graph, and the pipeline gallery resources in structured text are evaluated and filtered using a large language model, to obtain structured text with compatibility evaluation label;Using a large language model, execute logical reasoning based on the local topological relationship represented by the structured text with compatibility evaluation label, generate reasoning results that meet pipeline planning and complete path chain from start to end;Based on the reasoning result, a candidate interconnection scheme is generated. Through the processing scheme of the present application, an interconnection scheme is generated that takes into account the reuse of existing resources, cost control and safety compliance, improving the intensive utilization efficiency of urban underground space.

The invention relates to the technical field of forming equipment, in particular to storage battery conducting strip forming processing equipment and a forming process thereof, and the storage battery conducting strip forming processing equipment comprises a pressing mold structure and a supporting mold structure which are distributed up and down; the die pressing structure comprises a die pressing table, a spherical die groove is formed in the middle of the bottom of the die pressing table, a punching rod vertically penetrates through the middle of the die pressing table in a sliding mode, inclined plates are arranged on the front side wall and the rear side wall of the die pressing table, and two transverse columns are transversely arranged on the die pressing table and distributed front and back. The conducting strip is molded into a specified shape by adopting a continuous processing and one-step molding mode, so that the processing steps can be greatly reduced, the processing complexity of the conducting strip is reduced, the rapid molding processing mode is realized, the processing efficiency is effectively improved, the processing mode is simplified, and the production cost is reduced. And moreover, the cost input and the manpower input which are required to be matched with a plurality of devices for processing in the traditional mode are saved.

The utility model discloses an air-breathing type detection device adopts integral injection molding technology to combine the convex design of air inlet pipe and air outlet pipe, simplifies the die structure, reduces the manufacturing cost, selects lightweight high strength nylon material for the cavity, realizes compact layout while guaranteeing the structural stability, adapts to the installation demand of narrow space, at the same time, through the external air inlet pipe and air outlet pipe structure, the conventional replacement and maintenance of dust screen do not need to open the cavity, greatly simplify the consumable replacement process, significantly improve the maintenance efficiency, and through the double sealing structure between the cover body and the box body and the secondary sealing design of PCB board, construct multilevel protective barrier, effectively isolate external environment interference, reduce the dependence on sensor sensitivity, ensure the detection accuracy while reducing the overall cost of equipment, and the application has the advantages of high sealing performance, high maintainability, compact structure, high performance, low cost and the like, is easy to assemble, disassemble and overhaul, and significantly improves the comprehensive performance and practical value of the detection device.

The invention discloses a manufacturing method of an underwater flexible pressure sensor based on a structured cavity. The manufacturing method of the underwater flexible pressure sensor based on the structured cavity comprises the following steps: designing and preparing a cavity mold; fluorinating the surface of the cavity mold; preparing a PDMS (Polydimethylsiloxane) cavity base; preparing a pressure sensitive film; packaging the pressure sensitive part; and assembling the packaged pressure sensitive part and the PDMS cavity base. According to the manufacturing method of the underwater flexible pressure sensor based on the structured cavity, an advanced achievement of a flexible electronic manufacturing technology is applied, and effective balance and offset of hydrostatic pressure influence are realized by designing and constructing a flexible micro-cavity structure, so that the sensor can be used in a complex underwater environment, and the underwater flexible pressure sensor based on the structured cavity can be manufactured. And the dynamic pressure change generated by water flow disturbance can be accurately detected, so that a brand new solution is provided for the field of underwater pressure measurement.