5results about How to "Computational Efficiency" patented technology

This invention discloses an adaptive switching method for rigid / non-rigid algorithms in solving system simulation models. During the system simulation model solving process, the rigidity of the ODE-IVP equations is monitored in real time, and an appropriate solution method is automatically selected based on the current rigidity value. To maximize solution efficiency, this invention does not calculate the rigidity of the current equation at every solution step. Instead, it dynamically "samples" the model according to a certain probability, ensuring that information on model rigidity changes is not lost while maintaining computational efficiency.

The application provides an arch dam simulation analysis method and system based on terrain and geological reconstruction, which comprises the following steps: based on dam body parameterization control information, generating dam body flood discharge orifice, full-elevation radial twist surface transverse joint and foundation surface transition thin layer, and constructing an arch dam body structure model; based on terrain and geological data, reconstructing dam shoulder slope, and establishing a closed excavation simulation terrain model; based on weathering layer and structure surface information, constructing a geological partition model through topological cutting, boundary closing and redundant body elimination; integrating the arch dam body structure model and the geological partition model; classifying, extracting and segmenting dam body structure control lines, excavation boundary control lines and structure surface control lines, and generating an overall three-dimensional finite element grid; according to the partition result, corresponding material parameters are given, boundary conditions and external loads are applied for numerical solution, so that fine simulation analysis and result output of an arch dam-foundation system under real terrain and geological conditions are realized.

The invention discloses a DEM-based tunnel slope rockfall process simulation method, and relates to the technical field of numerical calculation of tunnel engineering technology, a simple rock slope containing DFN and a joint model is built, and microscopic parameters of the joint model are calibrated by simulating sliding, rolling and collision motions of rockfall and combining a friction coefficient and recovery coefficient calculation formula; on the basis of a geological section CAD drawing, discrete elements and CAD software are utilized to construct a complex slope and dangerous rock mass discrete element model, and a local particle encryption algorithm is adopted to optimize contact between a slope surface and dangerous rock mass particles; slope node data are converted through MATLAB, and a DFN and joint coverage model of segmented assignment is generated; and weakening a dangerous rock mass joint parameter simulation stripping process, and recording characteristics such as a falling rock movement track and speed. According to the method, refined simulation of the complex slope form and rockfall movement is realized, the model authenticity and the calculation precision are improved, the calculation efficiency is considered, and a reliable basis is provided for slope protection design.

The application provides an edge-computing-based real-time control method and system for a mechanical arm, relates to the technical field of mechanical arm control, and comprises the following steps: acquiring state information of the mechanical arm and a task instruction; performing semantic analysis at an edge node and converting the semantic analysis into a joint space trajectory sequence; performing time domain decomposition to generate an execution section and a cache section; generating a motion plan based on a time optimization criterion and calculating a control instruction; acquiring an actual state to calculate a deviation; when the deviation exceeds a threshold value, calculating a deviation influence quantity and generating a compensation quantity to correct the cache section and realize real-time control. The application realizes high-precision real-time control and intelligent correction of the mechanical arm.

The present application relates to the technical field of mine auxiliary transportation automation control, and specifically discloses a monorail global energy consumption optimal path planning method for mine roadway topology, collects roadway measurement data to construct a coarse-grained topological map composed of nodes and arc segments, encapsulates high-density elevation point cloud subsets within each arc segment; takes the map as a search space and elevation difference as a basic cost to search for a preliminary path sequence; retrieves the elevation point cloud subsets of each arc segment along the preliminary path, reconstructs the elevation continuous change curve and calculates the slope change rate; differentiates the arc segment intervals according to the slope change rate to form a non-uniformly distributed grid along the whole path; takes each distribution point on the grid as a discretization reference, adds the square of the second derivative of the speed to the penalty term to the traction net energy consumption optimization target, solves the speed value of each distribution point under the constraints of traction force, braking deceleration and centrifugal force of the curve, and outputs the speed instruction sequence.