12 results about "Equipotential surface" patented technology

The invention relates to the technical field of geologic model analysis, in particular to a coal bed gas fracturing three-dimensional well network seam network design method based on a geologic model, and the method comprises the steps: firstly constructing a three-dimensional discrete geologic model containing grid node mechanical parameters, and generating a three-dimensional dynamic induced stress potential energy tensor field; performing low-potential-energy gradient optimization calculation by using the field to obtain a shaft space topological coordinate avoiding a high-potential-energy area so as to reduce the well wall instability risk; meanwhile, fracture extension simulation is cut off through an equipotential surface threshold value in the field, and hydraulic fracture geometrical morphology parameters matched with formation energy constraint are accurately determined; and finally, integrating the parameters to generate an optimized three-dimensional well pattern seam network design scheme, and realizing efficient and safe fracturing design based on the rock mass accumulated deformation energy distribution characteristics.

The application discloses a kind of based on big data visualization's transformer substation intelligent monitoring method, it is related to measurement data visualization technical field, including, the offset degree between the space-time fingerprint base template and real-time behavior fingerprint is calculated, generates offset vector set, obtains the distribution of offset vector set in space by kernel density algorithm, generates abnormal density field and space abnormal density point cloud;According to space abnormal density point cloud setting density threshold and solving the equipotential surface of abnormal density field, generate abnormal three-dimensional equipotential surface group;Extract risk evaluation index of abnormal three-dimensional equipotential surface group and carry out dynamic rendering to abnormal three-dimensional equipotential surface group, output dynamic visualization picture.The application constructs space-time fingerprint base template and calculates offset vector set, and abstract offset behavior is converted into three-dimensional risk form with space boundary, expansion trend and density aggregation characteristics, improves the explainability of transformer substation abnormal structure, visual identification and forward-looking monitoring capability.

The application provides a printing flat net multi-roll belt thickness difference detection system and relates to the technical field of thickness detection. The method comprises the following steps: a detection bridge construction module is used to construct a hollow cover type detection bridge which crosses the multi-roll parallel printing belt and forms a floating detection area with double curvature constraints in the belt splicing area; a solving module is used to solve a first virtual anchor point located on the geometric center line of the floating detection area and a second virtual anchor point located on the top symmetric axis of the hollow cover type detection bridge, so as to construct a U-shaped equidistant line cluster extending along the longitudinal direction of the floating detection area and an outer convex arc-shaped equipotential surface cluster extending along the transverse direction of the hollow cover type detection bridge. The application realizes global quantitative detection of the thickness difference of the multi-roll parallel printing belt, improves the accuracy, standardization and efficiency of the thickness detection, and solves the technical problem that the thickness difference of the multi-roll belt is difficult to accurately quantify.

The application discloses a kind of grid-connected virtual synchronous generator transient synchronization practical stability analysis method and system, belong to power grid technical field, method includes: establishing the grid-connected VSG disturbance system model of introducing lumped disturbance term, and the multiple uncertainty of parameter error, reference power fluctuation and grid operating condition change is uniformly represented in lumped disturbance term;Based on the boundary value of lumped disturbance term design deterministic comparison system, approximate representation disturbance system model;With comparison system as object, solve its unstable equilibrium point and deduce critical energy, make conservative estimate to the practical stability domain of disturbance system;Combined with Poincaré-Bendixson theorem determines the limit cycle position of comparison system and constructs equipotential surface, estimates the final boundary of the practical stability of disturbance system.The application also provides corresponding analysis system.The application improves the rigor and engineering practicability of stability analysis, and provides reliable basis for the safe and stable operation of grid-connected VSG.

The invention discloses a cold plate multi-objective optimization design method based on a three-period minimal curved surface structure. The method comprises the following steps: determining basic configurations Gyandroid and Diamond types of a TPMS (Tire Pressure Monitor System) of an embedded cold plate; a period parameter is represented by a Bernstein-Bezier function, and an equipotential face value is represented by a cubic spline; physical property interpolation of a solid domain and a fluid domain is achieved through an MIM method, and a flow Darcy model is introduced to construct a conjugate heat transfer topological optimization model of a TPMS structure; and optimizing the TPMS structure by adopting a non-dominated sorting genetic algorithm NSGA-II by taking a control parameter representing the characteristic structure element as a design variable and taking the average temperature and the temperature standard deviation of a target surface as optimization targets. Through structural modeling, numerical modeling and gradient-free optimization, the overall thermal performance and temperature uniformity of the efficient heat exchange structure of the cold plate are improved.

The application provides a printing flat net multi-roll belt thickness difference detection system and relates to the technical field of thickness detection. The method comprises the following steps: a detection bridge construction module is used to construct a hollow cover type detection bridge which crosses the multi-roll parallel printing belt and forms a floating detection area with double curvature constraints in the belt splicing area; a solving module is used to solve a first virtual anchor point located on the geometric center line of the floating detection area and a second virtual anchor point located on the top symmetric axis of the hollow cover type detection bridge, so as to construct a U-shaped equidistant line cluster extending along the longitudinal direction of the floating detection area and an outer convex arc-shaped equipotential surface cluster extending along the transverse direction of the hollow cover type detection bridge. The application realizes global quantitative detection of the thickness difference of the multi-roll parallel printing belt, improves the accuracy, standardization and efficiency of the thickness detection, and solves the technical problem that the thickness difference of the multi-roll belt is difficult to accurately quantify.

This invention relates to the fields of computer vision and artificial intelligence, and discloses a sign language recognition method based on multi-level state feature optimization. The method includes acquiring a sign language video sequence and extracting original visual features; constructing a semantic potential energy field, calculating the potential energy value of the current frame features and their gradient vector relative to the feature space; constructing a local orthogonal basis based on the gradient vector, and orthogonally decoupling the features into normal transition components along the gradient direction and tangential steady-state components along the equipotential surface direction; performing differential evolution processing on the normal transition components based on multi-level dynamic states, using graph networks to repair transition features, and smoothing the tangential steady-state components; finally, reconstructing features and temporally decoding the processed components to obtain the sign language text. This invention utilizes the geometric properties of the potential energy field to achieve physical-level decoupling between core semantics and transitional actions, effectively solving the feature drift problem caused by action switching in continuous sign language, and significantly improving recognition accuracy.

The invention relates to the technical field of virtual reality and computer graphic image processing, in particular to a virtual reality-based dance teaching system and a virtual reality-based dance teaching method. Comprising the steps of collecting a standard dance sequence and real-time action data of a user, and constructing an anisotropic scalar field representing an influence range in a three-dimensional space based on a standard trajectory; generating a strength tensor by extracting a rhythm strength parameter of background music, and implementing spatial form constraint on the gradient distribution of the scalar field to obtain a corrected scalar field; extracting an equipotential surface in real time by using an implicit curved surface reconstruction algorithm, and generating a dynamic guide grid wrapping a virtual avatar of a user; and calculating a potential energy deviation value of the user action, performing displacement operation on the grid vertex along the normal direction according to the potential energy deviation value, and rendering a visual geometry with real-time deformation feedback. According to the invention, a learner is promoted to do a pair of actions at key rhythm points, and the strength requirement of music is met, so that the rhythm sensation and artistic tension of dance actions are effectively improved.

The embodiment of the utility model provides a touch display substrate, and relates to the technical field of touch display. The touch display substrate comprises a liquid crystal panel and a backlight module. The liquid crystal panel comprises a touch sensor and a transparent shielding layer, and the backlight module comprises a back plate; the transparent shielding layer is arranged between the touch sensor and the backlight module, the transparent shielding layer is not grounded, and the backboard is grounded. In the embodiment of the utility model, the transparent shielding layer is not grounded, the transparent shielding layer can generate electrostatic balance in an electric field, the surface of the transparent shielding layer is an equipotential surface, and the back plate is grounded, so that the potential between the transparent shielding layer and the back plate is always unchanged; in this way, the potential between the transparent shielding layer and the back plate cannot be changed, so that extra capacitance cannot be generated and collected by the touch sensor, touch data of a diffusion part formed by the generated extra capacitance in related technologies can be eliminated, and the sensitivity of a touch display product is improved.

The application discloses a kind of wading bridge bird protection decision closed engineering optimization method, device, computer equipment and readable storage medium, involve engineering design field, including: constructing bird flight trajectory dynamics and energy consumption model, solve the energy consumption minimum flight trajectory under different initial height;Based on the trajectory and bird alert distance, construct the bridge interference alert equipotential surface that the space position set of bird first enters alert distance is characterized;Calculate the bird disturbed area in equipotential surface and the group disturbance probability based on bird group density;Combined with bridge full closure engineering cost and ecological loss cost, construct comprehensive cost function, determine target full closure length by optimizing the function.The method realizes the balance of engineering cost and ecological protection by quantifying bird flight behavior and interference risk, provides scientific decision basis for wading bridge bird protection engineering.

The invention relates to a magnetic nuclear fusion reactor with distributed divertor power, which comprises at least one first section (1.1) and at least one second section (1.2) and contains floating layers of fluid. The reactor comprises, in one section, a first vessel (4) for the divertor function, containing at least one adjacent layer that is not in contact with the plasma (2) and which forms an equipotential receiving wall (4.1) of reactive liquid metal, said wall forming an equipotential surface across the entire interior surface, for receiving equal power from ionised particles at any point on the surface; and, in the other section, a second power vessel (5) containing at least one lithium-containing power layer (5.2), which is disposed on the chamber (1) and capable of extracting power from the plasma neutrons and generating tritium.

The application discloses a retarding potential analysis device, which is characterized in that a plurality of retarding structure units are arranged between an entrance electrode and a retarding electrode, each of the retarding structure units forms a spherical equipotential surface with the entrance as the center at the entrance thereof, the flying direction of the incoming high-energy charged particles is always the same as the direction of the electric field, and the spherical equipotential surface is obtained on the basis of a planar assembly structure. Compared with a planar RPA, the measuring error caused by the inconsistency between the flying direction of the charged particles and the direction of the retarding electric field is greatly reduced, and compared with a spherical RPA, since the spherical center of the equipotential surface is located in the interior of the retarding structure unit, the distance between the RPA and the initial position of the charged particle source can be selected at will, and the measurement is more flexible. By arranging a plurality of retarding structure unit arrays, the measurement cross-sectional area of the plume can be increased. In addition, all the components can be realized by using traditional processing modes, and the cost is low.