22results about How to "Solve design problems" patented technology

The invention discloses a finite time tracking method, system and device for a time-varying heterogeneous formation with an unknown leader system matrix, and a medium, and relates to the field of cluster formation tracking control, and the method comprises the steps: obtaining a communication topological relation of the heterogeneous formation; determining a first follower cluster and a second follower cluster according to the communication topological relation; establishing an Euler-Lagrange kinetic model of the follower and a kinetic model of the leader; respectively establishing distributed finite time observers of the two follower clusters; establishing a distributed finite time time-varying formation tracking controller based on an Euler-Lagrange kinetic model of a follower, a kinetic model of a leader and a distributed finite time observer; and a distributed finite time time-varying formation tracking controller is adopted to control the time-varying formation of followers in the heterogeneous formation. According to the invention, tracking control of the multi-agent formation with an unknown leader system matrix is realized.

The invention provides a method for generating a pattern or an image on a cake by using an AI model, and the method at least comprises the following steps: providing a UI module for a user to input keywords and descriptions; generating an image of a black and white vector according to the input content by using an AI-based image module; processing the 2D image into a digital instruction through an image converter module; sending the digital instruction to a laser patterning module; and applying a pattern to the biscuit surface using a laser patterning module.

A detachable electromagnetic heating mold for in-situ curing of composite materials, the present invention relates to an electromagnetic heating mold, the present invention is to solve the problems of uneven heating temperature control, low efficiency and potential safety hazards in the mold in the prior art, and to realize the winding in-situ curing molding process of pressure vessel-shaped products, it includes a spindle clamping end, a mold shell and an electromagnetic coil mandrel; one end of the mold shell is fixedly connected to the spindle clamping end, the fixed end of the electromagnetic coil mandrel is fixedly connected to the other end of the mold shell, and the heating part of the electromagnetic coil mandrel is inserted in the mold shell. The present invention belongs to the field of composite material processing.

The application relates to the field of communication and discloses an edge computing device control circuit and an edge computing device. The edge computing device control circuit comprises a first processor and a second processor, a micro control unit connected with the first processor and the second processor, and a switching device connected with the micro control unit. The switching device is connected with a timing pin of the micro control unit, the first processor is connected with a first control pin of the micro control unit, and the second processor is connected with a second control pin of the micro control unit. The timing pin is used for recording the closing duration of the switching device, the micro control unit is used for controlling the first processor through the first control pin when the closing duration is less than a set duration and controlling the second processor through the second control pin when the closing duration is greater than or equal to the set duration. The application solves the technical problems of increased difficulty in design and maintenance and high cost of the edge computing device in the prior art.

According to the high-orbit SAR receiving front-end design method, a feed source participating in beam forming is in a working state, and other feed sources not participating in beam forming are in a low-noise amplifier shutdown state, so that a relatively low noise coefficient of a system is realized, and the detection capability of weak and small targets is improved. According to the method, the influence of a receiving front end amplitude limiter, a low noise amplifier, a phase shift attenuator, a combiner and the like on system receiving noise is considered, the design problem of the high-orbit SAR low noise coefficient receiving front end is solved, and the sensitivity of a receiving system is improved.

The invention provides a spreadlight lens, a polarization light expanding lens and an aircraft landing taxi.The spreadlight lens comprises a TIR lens, an LED light source and a polarization structure, the spreadlight lens comprises a plurality of deflection parts connected in sequence, each deflection part comprises a bottom face, two opposite edges of the bottom face are provided with a first slope face and a second slope face respectively, and the first slope face and the second slope face are arranged on the two opposite edges of the bottom face respectively. The first slope surface and the second slope surface deflect light emitted by the light-emitting surface of the TIR lens in one direction or two directions. The light deflecting and expanding lens is formed by arranging a corrugated diffusion structure on the first slope surface and / or the second slope surface of the deflecting part of the spreadlight lens. A spreadlight lens, a polarization and diffusion lens and a diffusion lens are integrated on the aircraft landing taxilight. The requirements of various light distributions can be efficiently met in the same lamp, the lamp has the outstanding advantages of being various in light distribution type and small in size, and the design problem of the same lens and various light distributions is solved under the requirements of limited space and weight.

The invention discloses a self-locking tray and a working method thereof. The self-locking tray comprises a tray body. The tray body is of a U-shaped structure, containing grooves with upward openings are formed in the middles of the tops of the two sides of the tray body, and a self-locking mechanism is arranged on the outer side wall of the tray body. The self-locking mechanism comprises a mounting table, a self-locking rod, a shaft pin, a single hook and a push rod; the installation table is located below the containing groove, the push rod is horizontally arranged, the installation table and the push rod are horizontally connected through a spring, a long-strip-shaped hole is formed in one end of the self-locking rod, and a sliding block is connected to the push rod and slidably connected into the long-strip-shaped hole. The bottom of the single hook is rotationally connected with the shaft pin, one side of the single hook is open, and the other side of the single hook is connected with the other end of the self-locking rod. The simple, efficient and reliable self-locking function of the tray is achieved, the stability and safety of goods in the transfer process are improved, and the risk that the goods are damaged and lost is reduced.

The invention discloses a weight balancing method for turning a giant guide vane of a water turbine, which comprises the following steps of: 1, determining the center-of-gravity shift direction of the guide vane according to the rotary machining axis of the guide vane; secondly, a balance weight mechanism is arranged on the side opposite to the side where the gravity center of the rotary machining axis of the guide vane shifts, and the balance weight mechanism comprises a balance weight assembly and a connecting assembly for fixing the balance weight assembly to the guide vane; thirdly, the gravity center of the guide vane provided with the balance weight mechanism is measured and adjusted again, and it is ensured that the gravity center of the guide vane is located on the rotary machining axis; and fourthly, the guide vane with the gravity center adjusted is fixed to machining equipment. The weight of the irregular shape of the guide vane can be accurately balanced through the counterweight plate, and the unbalanced torque of rotation can be effectively eliminated through accurate calculation through combination of different shapes. The quality problem and the design and manufacturing of complex tools are solved, and the whole machining process is simplified; the multifunctional turning tool set integrates the shaft body outer circle machining function and the shoulder inner and outer spherical surface machining function, and the lathe turning machining function is achieved on a boring machine.

The application provides an inverter structure analysis optimization method, system and electronic equipment. The method comprises: obtaining structure data and air-tightness parameters; obtaining explosion pressure data; coupling analysis is performed on the air-tightness and explosion-proof performance of the inverter based on the structure data, air-tightness parameters and explosion pressure data, and the to-be-optimized region of the shell structure is determined according to the analysis result of the coupling analysis, wherein the to-be-optimized region is divided into an air-tightness optimization region and an explosion-proof optimization region; in response to the existence of the to-be-optimized region of the shell structure, the part of the structure corresponding to the to-be-optimized region is optimized and adjusted based on a preset optimization strategy, so as to update the inverter. The dual simulation coupling analysis can be used for air-tightness testing and explosion-proof testing and targeted improvement, the structure optimization design cycle is shortened, and the accurate air-tightness requirement under different IP levels is met, so that the optimal explosion-proof pressure relief effect is realized while the air-tightness performance is ensured.

The application discloses a design method of a longitudinal-bending ultrasonic vibration assisted deep hole drilling device, which comprises the following steps: selecting a working frequency of the longitudinal-bending ultrasonic vibration assisted deep hole drilling device and materials of each part of the device; sequentially performing transducer design to determine the length and diameter of a front cover plate, a middle cover plate and a rear cover plate and the position of a piezoelectric sheet; performing amplitude rod design to determine the length and diameter of each section of the amplitude rod; constructing a geometric model according to the size of the transducer and the amplitude rod, a bolt pre-tightening structure and a connecting structure of a tool and the device, the device and a machine tool; outputting trajectory modeling; and performing structure optimization and frequency degeneration of the longitudinal-bending ultrasonic vibration assisted deep hole drilling device based on finite element simulation. Thus, the general structure design of the double-excitation longitudinal-bending ultrasonic vibration assisted deep hole drilling device is realized, the frequency degeneration of the longitudinal vibration and the bending vibration is achieved and the amplification coefficient reaches the maximum, so that the design problem of the double-excitation longitudinal-bending same-frequency vibration device is solved.

This invention provides a DC active filter device based on square wave modulation. The device includes: at least one independent DC active filter unit; each DC active filter unit is connected in parallel across the two ends of a DC bus; each DC active filter unit includes: a measurement circuit that measures the ripple current of the DC bus; a control circuit that calculates the frequency components of the ripple current and then obtains a switching signal through square wave modulation, the frequency of which is equal to the target frequency of the ripple current to be compensated; and a drive circuit that sends the switching signal to the main power circuit, causing the switching devices in the main power circuit to operate and generate a compensation current to compensate for the ripple current of the target frequency component of the DC bus. This invention solves the problem of poor ripple suppression performance of high-power DC active filters at low switching frequencies. It enables the application of DC active filters at lower switching frequencies up to MW-level power applications, meeting the DC bus ripple suppression requirements for long-term operation of high-power power supplies.

The utility model relates to a supporting device, belongs to the technical field of building construction supporting, and particularly relates to a multipurpose hydraulic cantilever supporting device which comprises two cantilever supporting layers, I-shaped steel is arranged on the upper side of one cantilever supporting layer, and a first lifting lug is fixed to one end of the lower side of the I-shaped steel. According to the utility model, a plurality of groups of U-shaped anchor bolts, nuts and the like are used for mounting, the dismounting is convenient, meanwhile, materials can be repeatedly used, the green construction requirement is met, and the supporting system can be used for multiple parts of a building structure and can be combined and mounted according to specific construction conditions, so that the practical requirement on the supporting system under the same working condition is met; a stable and reliable supporting framework is formed by adjusting the length and the pressure of the hydraulic telescopic rod; the problems that in the prior art, design and construction of a formwork supporting system, design and construction of an operation platform supporting system and design and construction of a high-rise structure material transfer platform supporting system are not convenient are solved.

The present invention discloses a floating platform mooring system design method, including: establishing an initial mooring model through OrcaFlex; defining optimization variables, objective functions and constraints, setting each variable to change within a reasonable range; establishing an initial sample set through an adaptive Latin hypercube sampling method, and then calling OrcaFlex for time domain analysis; constructing an initial proxy model using the optimization variable values ​​and the objective function calculation results; calculating the expected improvement, determining the sampling points, iteratively updating, and determining and outputting a solution set that meets the requirements. The present invention uses an improved algorithm to optimize the constructed proxy model, thereby improving the optimization efficiency and reducing the computing power requirements for the machine; realizing the intelligent optimization of the mooring system design scheme, and obtaining the optimal design scheme within the range by setting the initial parameter range, so that the mooring design is simple and fast, and the economic benefits of the mooring system are greatly improved under the premise of meeting the requirements of the specification.

The present invention discloses an overall hoisting method for a drill floor module, including: confirming the installation position of the third hook carrying the lifting lug and the auxiliary lifting for turnover; confirming the force application point positions of the first hook and the second hook; respectively determining the positions of the lifting lugs carried by the first hook and the second hook; marking according to the ship bottom baseline and the hull center line; temporarily welding angle steels with a preset height at the four corners of the front and back sides of the drill floor module, and making center punch marks of the horizontal height on them as the horizontal height reference for subsequent equipment installation; conducting simulated hoisting to ensure that the accuracy meets the preset requirements; arranging at least two guide plates circumferentially at the lower half closing openings of each drill floor leg, and respectively positioning and hoisting the drill floor sections connected with the upper half of the drill floor legs to all the lower half parts of the drill floor legs; completing the positioning installation of the drill floor module based on the marks.

The utility model relates to a disengagement structure at the collision position of a retaining wall and a plant structural column, which comprises the retaining wall, a retaining wall foundation, a plurality of structural columns and a structural column foundation, a structural column foundation cushion layer is arranged at the bottom of the structural column foundation, the structural columns are arranged at the top of the structural column foundation, a gravel cushion layer is arranged at the top of the structural column foundation, and the structural columns are arranged in the retaining wall. The retaining wall and the structural column are equal in height, the retaining wall is vertically flush with the outer vertical face of the structural column, a vertical deformation joint is arranged between the retaining wall and the side wall, in the longitudinal direction, of the structural column, an extruded sheet is arranged in the vertical deformation joint, a retaining wall foundation cushion layer is arranged at the bottom of the retaining wall foundation, the retaining wall is arranged at the top of the retaining wall foundation, and the retaining wall foundation cushion layer is arranged at the top of the gravel cushion layer. While reasonable stress of the retaining wall and the plant structural column is guaranteed, construction is further simplified, raw material consumption and plant use space are saved, and the whole structure has better feasibility and safety.

The utility model relates to the technical field of building construction, and discloses a large-span steel structure limited space low-position integral lifting support which comprises a support component, a lifting device and a plurality of embedded parts, the support component comprises a stand column, the stand column is arranged above an outer side original structural beam, and the lower end of the stand column is fixedly connected to the corresponding original structural beam through a first embedded part; the top end of the stand column is fixedly connected with a platform beam horizontally and forwards extending out of the original structural beam, an inclined strut is fixedly connected between the stand column and the platform beam, and the lifting device is installed at the foremost end of the platform beam; a rear pull rod is fixedly connected to the rear side face of the upper portion of the stand column and gradually inclines backwards and downwards, and the lower end of the rear pull rod is fixed to the original structural beam on the inner side through a second embedded part. The steel structure lifting device is stable in structure, is suitable for lifting a steel structure in a narrow space in the middle of a floor, can be detached and recycled, and provides guarantee for smooth large-span space steel structure and overall lifting.

The application discloses a kind of polyhedral noise under nonlinear unmanned system online data-driven event trigger control method and system, method includes: for unknown nonlinear function dynamic discrete time nonlinear system equation, discrete time nonlinear system equation is changed into linear time-varying system equation;For unknown bounded noise in measurement data, construct noise polyhedron set, construct data-driven system set in combination with linear time-varying system equation;Dynamic event trigger transmission strategy of data-driven is constructed;Stability criterion and new trigger condition are established, optimization problem is constructed and is solved, new event trigger transmission mechanism weight matrix and state feedback controller gain matrix are obtained, in combination with stability criterion, state feedback controller gain matrix, new event trigger transmission mechanism weight matrix is controlled to nonlinear unmanned system.This application can make nonlinear unmanned system meet performance index and reach the goal of minimizing feedback controller transmission frequency.

The invention provides a nine-edge triangular face to T-shaped section steel column structure and a manufacturing method, and belongs to the technical field of supporting components in buildings. Comprising a T-shaped section steel column, a nine-edge triangular mechanism and a sealing plate, the top face of the nine-edge triangular mechanism is a horizontal top face, the bottom of the nine-edge triangular mechanism is fixedly connected with the T-shaped section steel column, and the sealing plate is located in the nine-edge triangular mechanism. The invention has the advantages of high structural stability, small section, large bearing capacity, reasonable space distribution, attractive appearance and the like.

The present invention provides an online operation management method, system and terminal based on a three-dimensional model of a ship, including: lightweighting a three-dimensional solid model of a ship newly created on a C / S fat client, obtaining a lightweight three-dimensional model and storing it; receiving online management operation signals from one or more users of a B / S thin client, for online management of the lightweight three-dimensional model; wherein the online management operation signals include: one or more of online viewing operations, online editing operations and online collaborative communication operation signals. The problem that the prior art has high requirements for on-site terminal application equipment and the resulting high application costs, as well as the inability to achieve online collaboration between design and manufacturing for three-dimensional models is solved. The present invention realizes online collaboration between ship design and manufacturing, supports online communication between on-site manufacturing personnel and designers, quickly solves design problems existing in the manufacturing site, reduces design changes and manufacturing rework, and saves production and construction costs.

This invention provides a key parameter design method for a satellite communication receiving system based on a phased array antenna. The method includes: dividing the phased array antenna-based satellite communication receiving system into functional units to determine key design parameters; determining the target carrier-to-noise ratio of the receiving system; and, based on actual application conditions or traditional design methods, pre-setting some key parameters as a design basis to determine other key parameters. By dividing the phased array antenna-based satellite communication receiving system into functional units, identifying the core design of the receiving link and the key design parameters of each functional unit, and rationally allocating the key parameter indicators of each functional unit, this method bridges the key gap between system link budget and engineering design implementation, resolving the tight coupling problem between the two. It improves the overall cost-effectiveness of engineering design implementation in terms of performance, cost, power consumption, and size, and serves as a guide for the design and implementation of a phased array antenna-based satellite communication receiving system.

This utility model discloses a common design mechanism for filters, including a fuel assembly. The fuel assembly includes a housing, a fuel pump housed within the housing, a fuel delivery pipe connected to the fuel pump, and a fuel storage housing housed within the housing. The common design component includes filters symmetrically arranged within the housing, a return pipe connected to one of the filters, an outlet pipe connected to the other filter, and a steel ball housed within the outlet pipe. This utility model achieves a universal design by incorporating the functions of the original design through the fuel assembly and the common design component. It optimizes the design in terms of development cost and speed, achieves interchangeable parts, reduces mold development costs, and thus lowers development costs and accelerates development speed.

A liquid cooling plate for a drive motor controller includes a controller housing. A heat dissipation substrate is provided inside the controller housing, and the heat dissipation substrate and the controller housing are sealed to form a liquid cooling plate channel. An IGBT module is disposed on the upper surface of the heat dissipation substrate, and a heat sink corresponding to the IGBT module is disposed on the lower surface of the heat dissipation substrate. The heat sink is located within the liquid cooling plate channel. The liquid cooling plate channel includes two channel regions: a first channel region and a second channel region, extending from the channel inlet to the channel outlet. Each channel region corresponds to a half-bridge of the IGBT module. The parameters of the liquid cooling plate channel satisfy the following relationship: