22results about How to "Achieve smoothness" patented technology

The invention relates to the technical field of data processing, and discloses an operation mode switching control method and device for an offshore wind turbine generator. The method comprises the following steps: carrying out model classification on historical operation data of a unit to obtain operation mode classification data and a characteristic parameter library; performing reinforcement learning analysis on the current state evaluation data and the short-term prediction data of the unit to obtain a target operation mode; performing fuzzy control processing on the target operation mode to obtain a mode switching strategy and a parameter adjustment sequence; performing multi-objective optimization and cooperative control analysis on the mode switching strategy and the parameter adjustment sequence to obtain accurate control signals of each actuator in the target offshore wind turbine generator; and generating an operation mode switching control strategy according to the accurate control signal of each actuator, and performing mode switching control on the target offshore wind turbine generator through the mode switching control strategy. According to the invention, the efficiency and accuracy of the operation mode switching control of the offshore wind turbine generator are improved.

The present invention discloses a method for dynamic simulation of flood inundation of digital twins of small and medium-sized watersheds based on UE5. It includes the following steps: step one: construct a two-dimensional hydrodynamic numerical model; step two: create a flood inundation simulation UE5 plug-in project; step three: create a flood role class; step four: construct a method for drawing triangular mesh primitives of flood models; step five: construct a method for rendering flood hydrological characteristics and flood flow patterns; step six: realize the dynamic simulation process of digital twin flood inundation. The present invention realizes the dynamic rendering and high-fidelity visualization of large-scale flood models in the three-dimensional scenes of digital twins of small and medium-sized watersheds, expresses the multi-dimensional flood inundation numerical simulation results such as water level, water depth, flow velocity, flow direction, as well as complex flood flow patterns such as backflow, convergent flow, bifurcated flow, floodplain flow, turbulence, etc., improves the authenticity and accuracy of flood inundation simulation, and is conducive to enhancing the decision-making support capabilities of flood risk assessment and flood control plans in small and medium-sized watersheds.

The utility model discloses a stainless steel fish tank which comprises a tank body, the tank body is divided into a plurality of classification cavities through partition plates arranged in the tank body in a sliding mode, a frame is arranged in each classification cavity, a net cover adheres to the surface of each frame, the top of the left side of the tank body is fixedly connected with a water pump, and a water outlet of the water pump is communicated with a water injection pipe. A servo motor corresponding to a classification cavity is started, a threaded rod is driven to rotate through the servo motor, the threaded rod drives a threaded sleeve to rotate through cooperation of a bearing seat and drives a moving rod to move upwards, limiting is carried out through sliding of a guide block in a guide groove, the moving rod drives a frame to move upwards, and therefore fishes in a net cover are fished up; when the fish tank needs to be cleaned, the partition plates only need to be pulled out one by one, the fish can swim in the cavity corresponding to the mesh enclosure, the fish can be conveniently fished up for water replacement and cleaning, water drainage smoothness during water replacement is achieved, and convenience during fish tank cleaning is improved.

The vibration isolation unit comprises an upper panel, a lower panel and a spring curved beam, the spring curved beam comprises an upper arc-shaped hard beam section, a middle elastic section and a lower arc-shaped hard beam section, the upper end of the middle elastic section is fixedly connected with the upper arc-shaped hard beam section, and the lower end of the middle elastic section is connected with the lower arc-shaped hard beam section; the center of the middle elastic section is overlapped with the arc center of the upper arc-shaped hard beam section and the arc center of the lower arc-shaped hard beam section, the upper arc-shaped hard beam section is connected with the lower surface of the upper panel, the upper arc-shaped hard beam section and the upper panel can be switched between fixed fit and sliding fit, and the lower arc-shaped hard beam section is connected with the upper surface of the lower panel. And the lower arc-shaped hard beam section and the lower panel can be switched between fixed fit and sliding fit. By adjusting the effective supporting rigidity of the spring curved beam, the continuity and smoothness of the rigidity change of the metamaterial are achieved, the large-range change of the rigidity is effectively achieved, and the requirements for the structural rigidity under different working conditions are met.

The invention discloses a large semitrailer platform air transport loading and unloading device and method, and relates to the technical field of air transport loading and unloading, the large semitrailer platform air transport loading and unloading device comprises a traction small wheel set, a driven small wheel set and a loading approach bridge; before air transportation, the front and rear small wheel sets of the large semi-trailer platform exceeding the air transportation height can be reloaded, and after the front and rear small wheel sets with small diameters are reloaded, the overall height of the semi-trailer platform can be reduced by not less than 500mm, so that the semi-trailer platform after the traction small wheel set and the driven small wheel set are reloaded can meet the overall dimension of an airplane cargo hold; the traction small wheel set and the driven small wheel set carry out air transportation along with the semitrailer platform, the semitrailer platform can be unloaded after the semitrailer platform arrives at a destination, automatic loading and unloading of the loading and unloading two-site airport are achieved, the design is novel, operation is convenient, the method can be used as a universal air transportation loading method of the semitrailer platform exceeding the air transportation height, and application and popularization are convenient.

The utility model provides a kind of spliced lamp, comprising: lamp tube module, for multiple, first light source is equipped in the lamp tube module, the two ends of the lamp tube module are inwardly concave and form socket, first plug is equipped in the socket;Connecting module, for multiple, second light source identical with the light emitting direction of the first light source is equipped in the connecting module, the lateral wall of the connecting module is equipped with at least two and the cross-sectional shape of the socket is identical with the plug-in part, the plug-in part can be inserted into the socket and realize connection, the end of the plug-in part is equipped with second plug, the first plug and one of the first plug are male plug, another is female plug and can realize electric connection, the lateral wall of one of the connecting module is equipped with power interface and as power access end.The utility model spliced lamp, compact structure, splicing is convenient, and lamp is good consistency.

The application discloses a dynamic branch decision and response generation method and system for multi-round dialogue, and relates to the technical field of natural language processing. The method comprises the following steps: obtaining a semantic representation vector of current round user input; maintaining a current topic semantic anchor and a historical dialogue semantic anchor with different update rates, wherein the two are only updated according to the current round and the last round; determining an intention drift degree and a semantic retention degree, and obtaining a transition tendency degree with continuous values through continuous mapping; constructing a maintenance distribution with a preference to continue the current topic, and a transition distribution valued according to the relevance of candidates and input and the semantic accessibility of candidates and historical dialogue semantic anchors; continuously mixing the two distributions to obtain a branch decision distribution by taking the transition tendency degree as a weight, determining a topic trend and generating a response. The application has the advantages of not increasing the calculation and storage overhead with the increase of dialogue rounds, and autonomously and smoothly deciding the topic continuation and transition without user instructions, and keeping the coherence with the history after transition.

The invention relates to the technical field of downhole operation, and discloses an in-well connected pipe fish top trimmer, comprising an upper connector and a reinforced guide shoe; a guide shoe connecting buckle is designed at the lower part of the upper connector, a reinforced guide shoe is arranged below the guide shoe connecting buckle, a hollow concave repair area is arranged between the reinforced guide shoe and the guide shoe connecting buckle, the upper connector is connected to the reinforced guide shoe, and after assembly, the upper connector, the guide shoe connecting buckle, the hollow concave repair area and the middle part of the reinforced guide shoe are designed with a through hole; the hollow concave repair area includes a trimming concave block, the lower surface of the trimming concave block is provided with a concave surface inclined to the center of a circle, and the trimming concave block is embedded with trimming crushed alloy; the through hole diameter of the trimming concave block is smaller than the through hole diameter of the reinforced guide shoe; the trimmer can bring torn and damaged fragments, strips, etc. out of the ground through entrainment, friction, etc., to ensure that the well is clean.

The utility model belongs to the technical field of observation mirrors for ship hot well condensate water, and particularly relates to an observation mirror structure for ship hot well condensate water. An observation mirror structure for ship hot well condensate water comprises tempered glass, and the tempered glass is connected with a fixing mechanism. A first through hole is formed in the first fixing plate, a second through hole is formed in the second fixing plate, a first limiting ring is arranged in the first through hole, a second limiting ring is arranged in the second through hole, the tempered glass is arranged between the first limiting ring and the second limiting ring, the tempered glass of the observation mirror has high transparency, and the observation mirror is not prone to falling off under the high-temperature and high-pressure water vapor environment in a hot well. Light rays can penetrate through the light guide plate and enter eyes of an operator, so that the operator can clearly see conditions in the hot well. Therefore, basic conditions are provided for observing the liquid level heights of the oil and the water, and the liquid level heights of the oil and the water can be clearly observed.

An electric vehicle collaborative power grid power supply recovery strategy considering multi-time-domain EV-EPSV comprises the steps that a multi-time-sequence electric vehicle EV equivalent power supply model is established according to a travel rule of an electric vehicle user in a typical travel scene; a load importance index system is constructed, a load power loss model is established in combination with the load capacity and the power failure duration, and quantitative calculation of economic and social losses of different types of loads in the multi-time-sequence power failure process is achieved; and constructing a collaborative optimized power supply model of the electric vehicle EV and the emergency power supply vehicle EPSV, and realizing static power distribution of the electric vehicle and dynamic path and power optimization scheduling of the emergency power supply vehicle. According to the strategy, a multi-time-sequence EV equivalent power supply model is established, a load power loss evaluation system is constructed, and a collaborative optimization scheduling method of the electric vehicle and the emergency power supply vehicle is provided, so that efficient distribution of limited power supply resources and improvement of power supply recovery efficiency are realized. The scheduling flexibility of electric vehicle resources and the power supply toughness of a power grid can be effectively improved in a sudden power failure situation.

The application belongs to the technical field of lighting lamps, and particularly relates to a three-dimensional full-space wireless sliding table lamp with anti-dazzle and eye protection, which comprises a supporting frame, a lifting mechanism, a horizontal adjusting mechanism, a wireless sliding connecting assembly, a balance structure and a bidirectional light-emitting anti-dazzle assembly. A placing seat is fixedly connected to the bottom of the supporting frame, and a first sliding groove is formed in the vertical direction in the middle of the supporting frame. The lifting mechanism comprises an adjusting plate arranged at the end of a fixed cylinder, and a positioning rail is fixedly connected to the outer wall of the adjusting plate. The adjusting plate is clamped on the inner wall of the first sliding groove through the positioning rail. The LED upper lamp plate with a front inclination angle is arranged to effectively supplement the background light of the working environment. The bidirectional light-emitting mode significantly reduces the brightness ratio between the center of the working area and the surrounding environment, reduces the light-dark contrast, relieves the visual fatigue caused by frequent pupil adjustment of the human eye, and prevents myopia from the optical and physical aspects.

This utility model relates to the field of glass size measurement technology and discloses an automatic glass edge grinding size detection device, including a support base, a support frame mounted on the top of the support base, a top cover fixedly mounted on the top of the support frame, a grinding device mounted on the top of the support base, a first grinding disc mounted on the bottom of the grinding device, and a second grinding disc mounted on the bottom of the grinding device. This automatic glass edge grinding size detection device, through a fixed rail and a limiting rail set on the outer wall of a fixed plate, can drive a drive gear under the action of a drive motor, thereby causing a moving seat to move along the outer wall of the limiting rail. This causes a trigger switch on the outer wall of the measuring plate to contact the edge of the glass plate, and then the distance between the moving seat and the fixed plate is measured under the action of a laser rangefinder, thus facilitating the measurement of the glass plate size and enabling better glass grinding.

A multi-time-sequence EV equivalent power supply model modeling method considering a vehicle travel rule comprises the following steps: according to dynamic evolution characteristics of the travel rule of an electric vehicle user, combining travel sample data, dividing into a summer scene and a winter scene according to seasons, and dividing into a workday scene and a holiday scene according to a time sequence to complete data fitting; then, a vehicle travel state transition matrix is established through a semi-Markov chain SMC, and a Monte Carlo method MCM is utilized to perform random simulation on vehicle behaviors to obtain available discharge capacities of the electric vehicles at all moments, so that an electric vehicle cluster in a region is equivalent to a time-varying power supply model, and a multi-time-sequence EV equivalent power supply model is established; according to the method, by introducing a semi-Markov chain and a Monte Carlo random simulation method, available energy storage capacity distribution characteristics of an electric vehicle group in different scenes are described. The model can reflect energy storage laws of residential areas, working areas and shopping areas in different seasons and days, and dynamic quantitative evaluation of the EV available power potential is realized.

The invention discloses a bolt connection combined piston skirt top contact special-shaped profile design method. The method comprises the steps that firstly, a finite element simulation model of a piston is established, and radial and circumferential surface deformation of skirt top contact is obtained; fitting is carried out on the surface deformation, and radial and circumferential initial molded lines are obtained respectively; then selecting an optimized target parameter and sampling to obtain a molded line sample; simulating a finite element simulation model corresponding to the molded line sample to train a machine learning agent model; after verification, obtaining a trained machine learning agent model of which the precision meets the requirement; iterative solution is carried out on the basis of the model to obtain an optimal target parameter; and finally, obtaining an optimal molded line according to the optimal target parameters, and performing linear superposition to form a three-dimensional curved surface as an optimal molded surface. By means of a data driving method of machine learning, the artificial intelligence algorithm is innovatively applied to the design of the skirt top contact special-shaped profile of the bolt connection combined type piston.

The invention relates to the technical field of intelligent robot navigation and control, and discloses a parking lot inspection robot path planning method which comprises the following steps: step 1, acquiring parking lot environment information and constructing a multi-dimensional heterogeneous potential site map which comprises a physical barrier layer, a communication field intensity distribution layer and a risk probability distribution layer, meanwhile, global control parameters of path planning are reversely deduced and set on the basis of preset operation indexes, and the global control parameters at least comprise opportunity constraint confidence coefficients and stable gating threshold values. A global cost function of nonlinear coupling of risk revenue and communication quality is adopted, and multi-dimensional heterogeneous potential field map construction is combined, so that the technical effects of dynamically and preferentially planning a high-risk area and giving consideration to signal coverage are achieved, and quick response and value maximization to a temperature rise or smoke dangerous case in a finite time window are realized; the defect that high-risk hidden danger leak detection is caused by lack of elasticity of an existing static inspection route is overcome.

The utility model relates to a lifting assembly and a transportation robot. The lifting assembly comprises a bottom plate and a lifting assembly, the top plate is arranged above the bottom plate; the at least one lifting mechanism is arranged between the bottom plate and the top plate; the lifting mechanism comprises a base sleeve fixed to the bottom plate, a threaded sleeve coaxially and fixedly connected with the base sleeve, a lifting shaft which coaxially penetrates through the threaded sleeve and is in threaded fit with the threaded sleeve, and a lifting gear coaxially fixed to the lifting shaft. The driving mechanism is mounted on the top plate and is in transmission connection with the lifting gear; the driving mechanism drives the lifting gear to rotate, and then the lifting shaft rotates in the threaded sleeve and ascends and descends in the axial direction of the threaded sleeve, so that the top plate ascends and descends. According to the utility model, the stability of materials during lifting or descending is improved, and the smoothness of the lifting and descending processes is kept.

The present application relates to a method, device, equipment, medium and program for the fusion of continuous panoramic images and BIM, the method comprising: obtaining a BIM model of a target building, and obtaining a panoramic image taken at a target shooting point in the target building, rendering a model view of the BIM model at the target shooting point through a BIM rendering engine, measuring the viewpoint distance from each pixel point in the model view to the target shooting point, pixel-aligning the panoramic image with the model view, and copying the viewpoint distance of each pixel point in the aligned model view to the aligned pixel point in the panoramic image, measuring the observation distance and deflection between the target shooting point and a preset observation point, deforming the panoramic image and the model view based on the viewpoint distance, observation distance and deflection of each pixel in the panoramic image, and obtaining an image of a preset observation point. The present invention realizes the fusion effect of continuously displaying panoramic photos and BIM models in space.

The invention discloses a smooth ultrasonic curved surface scanning method based on a PLC, and relates to the technical field of ultrasonic detection.The smooth ultrasonic curved surface scanning method based on the PLC comprises the steps that all control points of a curved surface workpiece are obtained, an ultrasonic probe scans the curved surface workpiece according to the obtained control points, and in the scanning process, the ultrasonic probe is used for scanning the curved surface workpiece; s-shaped speed planning is adopted to control the ultrasonic probe to move from the current control point to the next control point, a motion control function block is called, meanwhile, echo amplitudes of the control points are collected to judge whether the control points are specific points or not, if yes, a correction point calculation program is called, and a calculation result is inserted into a control point file; the problems that in the scanning process, specific points cannot be modified online, and impact is caused by frequent starting and stopping of a movement mechanism during curved surface scanning are solved, track correction and adjustment and movement smoothness in the scanning process are achieved, and the reliability of the scanning process and the quality of follow-up imaging are guaranteed.

The application discloses a gantry structure of an electric spark machine tool and the electric spark machine tool, gear mechanisms driven by servo motors are arranged at two ends of a machine tool base, the gear mechanisms synchronously drive horizontal lead screws inside limiting seats from the two ends; when the horizontal lead screws drive the gantry to move forward and backward, the limiting mechanism ensures that a vertical part of the gantry moves horizontally in a sliding groove of the limiting seat; when the gantry moves forward and backward, piston rods on the gantry compress gas inside a gas tank, thereby buffering the forward and backward movement of the gantry, and the connection between the piston rods and the gantry prevents the top of the gantry from shaking when the gantry moves forward and backward. The application synchronously drives the horizontal lead screws from the two ends, further improves the smoothness of the rotation of the horizontal lead screws, thereby realizing the smoothness when the horizontal lead screws drive the gantry to move forward and backward; through the arrangement of the limiting mechanism, the horizontal lead screws can be prevented from being bent and deformed, thereby ensuring that the horizontal lead screws drive the gantry more smoothly.

The invention discloses a gear shifting control method, device and equipment of an electric bicycle, a medium and a product. The gear shifting control method of the electric bicycle comprises the steps that whether the electric bicycle executes gear shifting operation or not is judged according to gear shifting parameters detected by a gear shifting control sensor; when the electric bicycle executes the gear shifting operation, the motor is controlled to stop power output, and the rotating speed of a rear wheel of the electric bicycle at the current moment and a pedaling frequency signal of the electric bicycle at the current moment are obtained; determining a gear at the current moment according to the rotating speed of the rear wheel at the current moment and the pedaling frequency signal at the current moment; and controlling the electric bicycle to execute gear shifting operation according to the gear at the current moment. When the electric bicycle is subjected to gear shifting operation, the motor is firstly controlled to stop power output, then the gear shifting operation is executed according to the gear at the current moment, mechanical abrasion of a transmission system of the electric bicycle in the gear shifting process can be prevented on the basis that gear shifting is achieved, and then the service life of the transmission system can be prolonged.

The present application provides a biomedical-oriented measuring cylinder automatic calibration method and device, which relates to the technical field of measuring cylinder calibration. The method includes obtaining the liquid level height at the circumferential position of the solution to be tested in the measuring cylinder to form circumferential liquid level height data; performing tilt demarcation point analysis based on the circumferential liquid level height data to determine the tilt demarcation data; performing calibration displacement analysis based on the tilt demarcation data to form target movement data; and performing calibration control based on the target movement data. It can automatically calibrate the measuring cylinder vertically to obtain a more accurate liquid level reading.

The invention discloses an automatic driving vehicle path planning method and system based on electronic and electrical information architecture, and relates to the technical field of automatic driving, and the method comprises the steps: obtaining an initial vehicle state of an automatic driving vehicle and obstacle information in a driving environment; establishing a path planning model according to the initial vehicle state of the autonomous vehicle and the obstacle information in the driving environment; based on the path planning model and the electronic and electrical architecture model, performing global path planning on the autonomous vehicle by adopting an improved A * algorithm; based on the global path planning and the latest dynamic information of the external environment of the automatic driving vehicle, adopting a heuristic artificial potential field method to carry out local dynamic planning of the automatic driving vehicle; and performing path tracking control on the autonomous vehicle according to the global path planning and the local dynamic planning of the autonomous vehicle. According to the method provided by the invention, the optimality, safety and smoothness of planning are considered while the real-time performance is ensured.