75 results about "Adaptive design" patented technology

The invention relates to a binocular depth estimation method based on a depth neural network, which comprises the following steps: 1) preprocessing the input left and right viewpoint images to enhancedata; 2) constructing a multi-scale network model for binocular depth estimation, wherein the model comprises a plurality of convolution layers, an activation layer, a residual connection, a multi-scale pooling connection and a linear upsampling layer; 3) Designing the loss function to minimize the results in the continuous training process, so as to obtain the optimal network weights; 4) inputting the image to be processed into the network model to obtain the corresponding depth map, and repeatedly repeating the above steps until the network converges or reaches the training times. The invention adopts the idea of unsupervised learning, and only the left and right viewpoint images obtained by the binocular camera are used as network input. The adaptive design of the network sets the internal and external parameters of the camera as a single model parameter, so it can be applied to multiple camera systems without modifying the network.

A group of fixtures for thin-walled shell / cylindrical components (10) while they are being machined internally and externally, has a mounting base (1 ) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components. When properly inflated according to the design and validation procedure, the fixture adaptively holds the thin-walled components for machining, with sufficient supporting rigidity and dynamic stability.

The invention discloses an ultra-low side lobe adaptive digital beam forming (ADBF) method for a digital array. The method comprises four steps of conventional formation of a sum beam, interference airspace direction finding of a beam domain, construction of interference auxiliary beams and calculation of an adaptive weight; and specifically, the ADBF weight is calculated in a beam domain dimension reduction space for the auxiliary beams in the interference direction by using a digital array adaptive design. A theoretical analysis and a simulation result show that the algorithm adaptively inhibits interference, has good ultra-low side lobe beam shape preserving performance and is high in convergence rate, low in calculation quantity and suitable for the engineering application.

The invention relates to a disk cutter geological adaptability design method based on CAD / CAE and optimal design, which comprises the following steps of: collecting traditional disk cutter drawings to obtain different cutter ring structure types, and using cutter ring structure parameters including parameter radii, blade angles, blade width, transition arc radii, fit interference magnitude of a cutter ring and a cutter body, thickness of a sleeve between bearings and the like as design variables to establish a disk cutter CAD parameterized model base; selecting a typical stratum according to the different parameters of wall rock attributes, and establishing a mould satisfying geological adaptability and having different cutter specific energy consumption as an optimization objective; obtaining optimized disk cutter ring structure types and geometric parameter values through an SAGA algorithm; and obtaining the optimized fit interference magnitude of the cutter ring and the cutter body and the optimized thickness of the sleeve between the bearings through the obtained geometric modeling structure of the disk cutter ring by adopting a finite element analysis method. The invention improves the cutter adaptability for geology and provides a high efficiency platform for cutter design and manufacture.

The invention discloses an optical engine with variable view field. The optical engine comprises a cylinder body of the engine, a cylinder cover and a lengthened piston, wherein the middle part of the lengthened piston has hollowed structure, a reflector is placed in the space of the hollowed structure, and a piece of circular planar quartz glass is arranged at the top of the lengthened piston; aguide base is fixed at the upper part of the cylinder body, and cylinder sleeves are fixed between the guide base and the cylinder cover; the number of the cylinder sleeves is three, the heights of the three cylinder sleeves are consistent, and the connecting mode between each cylinder sleeve and the cylinder cover at the upper part of the cylinder sleeve and between the cylinder sleeve and the guide base at the lower part of the cylinder sleeve and the geometric dimension of the cylinder sleeves are the same to ensure interchangeability of the three cylinder sleeves; and the three cylinder sleeves are respectively a metal lengthened cylinder sleeve, an annular quartz glass cylinder sleeve and a planar mosaic glass cylinder sleeve, and variable view field of the optical engine is realizedby alternately using the three cylinder sleeves. The problem that a conventional optical engine cannot meet multiple measurement requirements at the same time is solved, and various measurement requirements are met by integrated design and adaptive design of the cylinder sleeves.

A group of fixtures for thin-walled shell / cylindrical components (10) while they are being machined internally and externally, has a mounting base (1) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components. When properly inflated according to the design and validation procedure, the fixture adaptively holds the thin-walled components for machining, with sufficient supporting rigidity and dynamic stability, so as to maintain the machining precision and surface finish to an acceptable engineering standard. Furthermore, a reasonable and practical design and validation procedure is supplied, easily adapted to different sized thin-walled shell / cylindrical components.

The invention provides an Internet of Things based coordinative control system for stage. With the adoption of the system, the integral control of subsystems in performance link of the stage is achieved, the island development of each subsystem is avoided, and meanwhile, the adaptive design of acousto-optical and other stage systems is performed, so that the stage effect can be played coordinately and smoothly.

The present invention discloses an experimental method for obtaining the excitation forces of the cutter head of a shield tunneling machine under different geological conditions. The method comprises the following steps of: a) similar material configuration; b) similar formation fabrication; c) cutter head vibration monitoring system design; d) simulation tunneling control; e) data collection and analysis; and f) cutter head geological adaptability design guidance. According to the experimental method of the invention, the excitation forces of the cutter head of the shield tunneling machine under different geological conditions can be obtained; a new novel can be provided for cutter head geological adaptability design; the basic data of the excitation forces of the cutter head under different geological conditions are of great application value for future cutter head structure design; the experimental method is worthy of being popularized.

The invention relates to a robust adaptive anti-interference control method which is applied in a robust adaptive anti-interference control system. The control system comprises a controlled object, areference model, an extended state observer ESO, an adaptive mechanism, an input adaptive adjustor and a feedback adaptive regulator. The method comprises a step of performing feedback compensation byusing an ESO estimating system, and a step of constructing a state error xm-z between a reference model and an ESO observer, combining a robust adaptive design method and obtaining adaptive laws based on an input adaptive regulator adjustment parameter K and a feedback adaptive regulator adjustment parameter F such that all signals in a closed-loop dynamic system are uniformly bounded, wherein atracking e=xm-z, an observation error e<->=Xp-Z and parameters K and F are included, and the adaptive laws comprises an adaptive control law and an adaptive adjustment law. According to the method ofthe present invention, external interference can be actively observed and compensated, and the influence of noise on the system can be reduced.

Metric calculation design for variable code rate decoding of broadband trellis, TCM (trellis coded modulated), or TTCM (turbo trellis coded modulation). A single design can accommodate a large number of code rates by multiplexing the appropriate paths within the design. By controlling where to scale for any noise of a received symbol within a received signal, this adaptable design may be implemented in a manner that is very efficient in terms of performance, processing requirements (such as multipliers and gates), as well as real estate consumption. In supporting multiple code rates, appropriately selection of the coefficients of the various constellations employed, using the inherent redundancy and symmetry along the I and Q axes, can result in great savings of gates borrowing upon the inherent redundancy contained therein; in addition, no subtraction (but only summing) need be performed when capitalizing on this symmetry.

The invention provides a method for designing a space-based measurement and control data format adapted to a Beidou short message, comprising the following steps: telemetry data format definition: framing is completed through nested packaging to obtain a telemetry frame, the frame length of the telemetry data is within a 240 Byte limit, a direct short message insertion mode is adopted, and the telemetry frame is divided into containing an insertion field and not containing the insertion field; direct instruction format definition: the length does not exceed the 240 Byte frame of the Beidou short message, a direct short message insertion mode is used, and a remote control instruction is composed of a guide code, an instruction code, an execution sequence and an end sequence; data injectioninstruction format definition: a data injection instruction consists of the guide code, length information, an injection instruction code and the end sequence, moreover, when the injection instructioncode exceeds 226 Byte, the code is disassembled into multiple packages for sending, and an odd-even check redundancy packet is added. According to the method in the invention, the characteristics ofthe Beidou short message is analyzed, the instruction formats are all subjected to an adaptive design, and a data format support is provided for spacecraft measurement and control management based onthe Beidou short message.

Disclosed is an integrated stage control system based on internet of things. According to the integrated stage control system based on internet of things, integrated control over subsystems of stage performance links is achieved, the subsystem island type development status is improved, and meanwhile the stage effect is displayed more coordinately and smoothly through the adaptive design of the systems like a stage acousto-optical system.

The invention discloses a fish way design method. The fish way design method comprises the steps of: step 1, collecting data; step 2, determining a fish passing target object; step 3, determining a fish passing scheme; step 4, establishing a dam front section hydrodynamic model and simulating a flow field; step 5, fish way overall design; and step 6, determining an optimal separation board distance. According to the invention, the fish passing target and the fish passing scheme are determined according to the fish resource current situation, the water environment current situation investigation is performed, and the hydrology and water quality conditions of the research area are analyzed. After the current situation analysis is completed, a flow field of a river channel at a dam site is simulated by utilizing an EFDC model, an appropriate living flow velocity range of local fishes is determined, preliminary design of the fish passing channel is performed, and flow field conditions of the fish passing channel under different design schemes are simulated. Simulation results of the fish passing channel flow field are analyzed and compared under different design schemes, and an optimalfish passing channel scheme is determined by combining the simulation results of the river channel flow field in the research area. The overall design of the fish passing channel is completed, and adaptive design and management are implemented.

The invention discloses an active vision positioning method. An adaptability design is carried out on a cooperative target to cause the shape and size of the cooperative target and relative positions among squares to be more favorable for detecting and identifying the cooperative target, wherein the edge distance of three squares is greater than the edge length of each square to effectively improve a classifying and sorting success rate of angular points; the cooperative target is jointly formed by that a red pattern is used as a back plate and three square yellow patterns are used as cooperative marks, so that the back plate and the cooperative mark can be more easily distinguished; the square mark positioned on a middle upper position is bigger, so that the cooperative mark exhibits good directivity, other two square patterns are independently positioned on two sides of the middle square pattern, and the three square patterns can be effectively distinguished according to the outline size of the square patterns in an image processing part; and the ratio of the three squares is designed into 4:3 to improve a detection rate. An angular point compensation algorithm is adopted to determine the position of a missed point and improve angular point detection accuracy. Meanwhile, more characteristic points are provided for a user to carry out positioning, and therefore, positioning precision is improved.

It is an adaptive expanding transform jitter modulation watermarking method. The expanding transform jitter modulation watermarking has the advantages both quantitative index modulation watermarking and spread spectrum communication system, and it has a good performance against attack. However, the original STDM method uses the fixed quantization step, which takes no account of human perceptual model, so its performance is greatly limited. The invention introduces a human perception model / signal quality evaluation method to the original STDM, used to measure the distortion introduced by watermarking and compute a weighted sequence, and the use of weighted plastic watermarking idea changes host signals, to make the local variable capacity of the host signal apply for the human perception system; re-designing the quantization step to meet the distortion conditions determined by un-perceptibility. Using the method described in the invention, the embedded watermark can fully use the local characteristics of carrier signal, adaptive design the quantization step, greatly enhance the watermark robustness, and at the same time achieve a good watermark un-perceptibility.

The invention discloses a method of micro grid energy scheduling based on dynamic adaptive fuzzy logic. The method includes the steps of taking one-day prediction information of a micro grid as a training set for generating an optimal fuzzy controller; taking the obtained prediction information as an analog input, and with the dual optimization goal of minimizing the operation cost of the micro grid and minimizing the power fluctuation of a public grid, performing dynamic adaptive design on two aspects, including the shape of a membership function and a fuzzy inference rule, of a fuzzy interference system through a new heuristic optimization algorithm; and further using the obtained optimal fuzzy controller for real-time control of the micro-grid energy management. For one thing, the adaptive optimal controller considers the running information for a period of time and adjusts its own fuzzy inference system according to different environments so that the optimal scheduling of the global time can be realized; and for another, since the fuzzy logic inference has good fault tolerance towards its own imprecise information, the method can effectively avoid the interference of the uncertainty caused by a prediction error.

The invention provides a design method for wide adaptability of an aircraft three-dimensional aviating area controller so as to overcome the defect that an existing controller design method can not ensure stable and safe aviation of an aircraft in a given aviating area. According to the method, an aircraft motion phase plane equation is built, an aircraft stable level aviation flow angle of attack and a trim control surface are obtained in a given control target height and mach number through an aerodynamic force equation and a moment equation, a feedback controller of states such as the flow angle of attack and a sideslip angle is introduced, regional stability of a system is confirmed by adopting a phase plane analyzing model, and parameters of the feedback controller are confirmed based on regional stability. Three-dimensional motion of the aircraft is controlled directly, so that the defect that incorrect approximation such as an aerodynamic force effect is ignored in the moment equation is avoided, stability of the aircraft can be ensured by the controller in the whole designed area, and occurrence of problems such as unstable and unsafe aviation caused by the analyzing model is reduced or even avoided.

A group of fixtures for thin-walled shell / cylindrical components (10) while they are being machined internally and externally, has a mounting base (1) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components. When properly inflated according to the design and validation procedure, the fixture adaptively holds the thin-walled components for machining, with sufficient supporting rigidity and dynamic stability, so as to maintain the machining precision and surface finish to an acceptable engineering standard. Furthermore, a reasonable and practical design and validation procedure is supplied, easily adapted to different sized thin-walled shell / cylindrical components.

The invention discloses an adaptive supercritical carbon dioxide turbine design method, which comprises the following steps: determining design variables, sampling and obtaining an initial design scheme; thermal design; aerodynamic analysis; setting initial annealing temperature T and design scheme; Gauss proces regression model learning; generating a new design scheme and carrying out thermal design according to Step 2; Gauss process regression model forecast; inspection criteria 1; the isentropic efficiency is obtained by aerodynamic analysis according to step 3; testing criterion 2, the optimal design scheme is obtained. The Gauss process regression method based on machine learning provided by the invention, combined with a rapid adaptive design and optimization method established by the simulated annealing method, which can solve the poor precision and long design cycle of the traditional supercritical carbon dioxide turbine design and optimization method, has a stable and fast optimization effect, and has wide applicability to different engineering problems.

The present invention discloses a pulse compression technique-based range imaging method. The range imaging method includes the following steps that: a zero-filled transmitted signal sequence is adopted to carry out matched filtering on a received signal sequence, so that an initialized range image estimation value can be obtained; under the MMSE criterion, the existing range image estimation value is utilized to obtain a new filter weight vector; and the new filter weight vector is utilized to update the range image estimation value; and the above operation is executed repeatedly until a preset judgment condition is satisfied, so that range imaging is completed. According to the method, all received data are utilized to carry out the adaptive design of the filter weight vector; the degree of freedom of self-adaption is not limited by the length of transmitted signals; the range image of a target scene of any size can be estimated; and the estimated length of the range image in an iteration process will not be decreased. Compared with an existing method, the method has higher utilization rate of sampling data.

The invention discloses an automatic slag removal biomass combustion device as well as a combustion machine and a combustion method. The automatic slag removal biomass combustion device as well as thecombustion machine and the combustion method have the beneficial effects that the comprehensive optimization design is carried out on the arrangement of a material combustion bin and an air duct, anoriginal combustion mode of transverse fire discharge is changed, and a scraping plate capable of doing reciprocating motion is arranged in the combustion bin, and therefore, the coke slag and the ashin the combustion bin can be cleared in time, then the downward ventilation is not influenced, and the heat conversion rate of biomass fuel can be improved; and the combustion device enables the flame to be directly combusted, the defect that a boiler wall is burnt by the transverse flame is avoided, and therefore the upward combustion enables the heat to be more concentrated, the applicability is wide, the requirements of most existing boiler hearths can be met, the adaptive design is not needed to be carried out on the boiler, the use and popularization cost of the combustion machine is reduced, meanwhile, the service life of the boiler is prolonged, and multiple purposes are achieved.

The invention relates to a satellite dynamic angle adjusting mechanism in a low-temperature vacuum environment. The mechanism contains a satellite coupling square frame and a crossbeam positioned below the coupling square frame. A bracket vehicle used for supporting is arranged below the crossbeam. The coupling square frame is connected to the crossbeam through rotating shafts at two ends of the square frame and a spiral elevator. Lifting motion of a lead screw of the spiral elevator drives the coupling square frame to rotate along the axis. The crossbeam is connected to the bracket vehicle through a rotating shaft positioned on a short arm and a spiral elevator positioned at one side of the rotating shaft. Elevation angle of the coupling square frame is realized when the spiral elevator pushes a long arm of the crossbeam. Angle adjustment of a satellite in two directions is realized, mutual interference during motions in the two directions is eliminated, and an adaptive design is performed in allusion to the vacuum low-temperature operating environment so as to make the mechanism meet the requirement of being used in vacuum at low temperature.

The invention provides a satellite platform structure with a downward-stretching storage box. The satellite platform structure comprises a conical force-bearing cylinder, a downward-stretching storagebox mounting structure and an instrument and equipment mounting structure. A main force-bearing structure adopts the conical force-bearing cylinder, thus, force transferring is direct, and the weightis smaller; through a storage box mounting mode provided by the storage box mounting structure, the storage box stretches downwards to a rocket three-dimensional frustum area so as to lower the masscenter of a satellite; and the outer configuration of the instrument mounting structure is in a non-equilateral hexagon shape so that a larger equipment mounting space can be provided, and adaptive design is conducted on one side of the hexagon so as to provide an antenna mounting space. Compared with the prior art, the satellite platform structure with the downward-stretching storage box has thefollowing advantages that firstly, the storage box is mounted in a downward-stretching mode, so that the mass center of the satellite is lowered greatly; secondly, bearing of high-capacity propellantsand response control can be provided through the design of pull rods and an embedded frame in the storage box mounting structure; and thirdly, through the non-equilateral hexagon outline, the wider equipment mounting space can be provided, the force transferring path is direct, the structure is simple, the weight is small, and the satellite platform structure is suitable for a deep space probe and can be popularized to the configuration design of medium and large satellites.

The invention provides a speed-grading and impact signal flexible collecting method. Multiple channels of programmable-control analog switches are in parallel connection or cascaded connection to achieve the purpose of gating and collecting super-multiple channels of signals. An on-site programmable logic device is utilized to previously set the gating sequence of the multiple channels of signals and the gating ranges of the switches to achieve a flexible data collecting method. Thus, the work efficiency of a remote measuring system is greatly improved. Meanwhile, by means of a flexible design method, a collecting circuit can be designed adaptively according to different requirements. Compared with traditional circuit measurement, the application universality of the speed-grading and impact signal flexible collecting method is improved.

The invention relates to the technical field of roller type design, in particular to a variable-convexity roller type self-adaptive design method based on a genetic algorithm. The method comprises thefollowing steps: performing x-direction equidistant sampling on all roll curves in an initial roll curve population to generate an initial discretized roll curve; establishing a fitness function of the convexity control capability by taking the linearity of the convexity and the roll shifting amount as an index; establishing a fitness function of roller abrasion according to the abrasion characteristics of the hot rolling working roller; constructing a roller comprehensive fitness function according to the fitness function of the convexity control capability and the fitness function of the roller wear; and in combination with a roller comprehensive fitness function, performing iterative optimization on the initial discretized roller type curve by adopting a genetic algorithm, and taking the roller type curve obtained by iterative optimization as an output roller type curve. The roller type designed by the method can improve the convexity adjusting capacity and the abrasion resistanceof the roller, effectively prolong the service life of the roller and effectively improve the plate shape control capacity of the roller.

The invention provides a design method for improving the acoustic performance of an anti-icing panel of a turbo-propeller plane. The method comprises the following steps: selecting the model of the anti-icing panel, selecting the model of an acoustic inner core, designing the aerodynamic shape of the anti-icing panel, meeting the environmental suitability design requirement and the anti-icing panel installing requirement. According to the method, an anti-icing panel structure with the characteristics of high sound reduction index, low aerodynamic noise, easiness in replacement, capacity of meeting the environment suitability and the like can be designed, and the performance requirements in two aspects of preventing a propeller from throwing ice so as to damage the body of the plane and improving the acoustic performance of the body structure of the plane are met under the condition that the structure of the plane is not changed.

The invention relates to a crane wheel set adaptive design method based on a preferred number. The crane wheel set adaptive design method comprises the following steps of establishing a wheel set model through Solidworks, extracting feature parameters, and generating an Excel table for sizes of a wheel set component part model; constructing a wheel set design structure matrix for the extracted feature parameters, and primarily determining main parameters and candidate main parameters of the series design of a wheel set; standardizing the parameters of the wheel set, clustering and calculating the parameters by relation distance, and constructing a design relation matrix of the wheel set; selecting and utilizing an interblock linkage method to cluster and analyze the relation matrix, further improving the series number of the preferred number of the wheel set, and adopting a series table and a configuration method to generate the Excel table for the size series of the wheel set component part model; enabling the Solidworks to call the sizes in the generated Excel table, replacing the size of the original Solidworks component part model with the required design size, and utilizing the sizes to drive the parameterizing and modeling of the Solidworks, so as to complete the adaptive design of the wheel set, and finally realize the crane wheel adaptive design based on the preferred number.