5 results about "Geometric form" patented technology

The invention belongs to the technical field of artificial intelligence, and relates to a geometric large model training method and device, an application method and device, a medium and electronic equipment. The method comprises the following steps: obtaining a geometric image, wherein the geometric image is obtained by reconstructing a geometric form language; a geometric text is determined according to the geometric image, the geometric image and the geometric text are used for training a geometric large model to obtain a geometric large model meeting preset conditions, the geometric text comprises a geometric problem text and a geometric answer text corresponding to the geometric image, and the geometric large model is used for solving the geometric problem. The computing power in the reconstruction process is reduced, the consistency problem of the vertex annotation and the topological structure of the geometric image and the matching degree problem of the reconstructed image and the combined text are solved, the geometric visual perception ability is improved, the two schemes of topological relation perception and geometric axiom alignment are integrated, and the method has the advantages of being high in practicability and easy to popularize. The generalization ability and the reasoning depth of the geometric large model in geometric reasoning and sensing tasks are optimized, and the calculation efficiency and the calculation accuracy are improved.

The application discloses an arbitrary differentiable geometric constraint virtual clamp, a dynamic control method and a system, wherein the arbitrary differentiable geometric constraint virtual clamp is characterized in that: in the case that the geometric form of the virtual clamp can be given in an analytical form and is at least second-order differentiable, the constrained geometric form only depends on the spatial position; a scalar constraint equation and a constraint control variable of the virtual clamp are defined, a joint Jacobian matrix of multiple constraints is constructed, a reference constraint control input is calculated by using PD control based on a constraint control expected value and a constraint control error value; the arbitrary differentiable geometric constraint virtual clamp dynamic control method is characterized in that: a null space control input of a mechanical arm is calculated based on a dynamic model, a reference constraint control input is calculated by using the virtual clamp, and an estimated torque is projected to a task space corresponding to a virtual clamp constraint and then compensated by using a disturbance observer. The virtual clamp provided by the application solves the problems of poor universality and heavy calculation burden, simplifies calculation and improves universality.

The invention provides an optimization method for a fuselage barrel section end frame shape-preserving frame and a storage medium. The optimization method comprises the following steps that 1, a fuselage barrel section three-dimensional structure model, a shape-preserving tool three-dimensional structure model and a bottom bracket three-dimensional structure model are constructed; step 2, establishing a fuselage cylinder section grid unit, a shape maintaining tool grid unit and a fuselage cylinder section bottom bracket grid unit; thirdly, constraint relations are applied to the machine body barrel section grid units, the shape maintaining tool grid units and the machine body barrel section bottom bracket grid units; 4, solving deformation results of the fuselage cylinder section three-dimensional structure model, the shape-preserving tool three-dimensional structure model and the bottom bracket three-dimensional structure model; and 5, according to the deformation result, changing the geometric form and the material type of the shape-preserving tool three-dimensional structure model, repeating the step 1 to the step 4, completing the calculation of the deformation result of the fuselage cylinder section three-dimensional structure under different shape-preserving tool geometric forms, and selecting the shape-preserving tool three-dimensional structure model with the minimum deformation according to the result.

The application relates to the technical field of building digitization, and particularly discloses a system for intelligently generating a building component of a Huizhou style based on non-heritage pattern recognition, which collects and analyzes non-heritage component images and semantic descriptions, constructs a pattern narrative knowledge set containing pattern semantic entities and relation predicates, receives target cultural implications and component form constraints, generates a semantic relation topological structure through intelligent reasoning, then instantiates the topological structure into a preliminary geometric contour according to a set of geometric form rules, then performs non-heritage visual stylization enhancement processing on the contour, finally performs multidimensional compliance verification and iterative optimization on the stylized contour, and outputs a digital building component model meeting comprehensive requirements of culture, form, aesthetics and engineering; the application solves the key technical problem of disconnection between artistic conception narration and algorithm form in a traditional generation method, and realizes intelligent and faithful innovative transformation of non-heritage patterns from cultural semantics to constructible geometry.

The application provides a cableway bridge parameterized modeling method based on geometric form finding and space topology mapping, relates to the technical field of bridge engineering digital design and modeling, and the technology comprises the following steps: constructing a calculation domain, analyzing form finding, constructing an assembly reference, component topology mapping and full model generation. The application establishes a full parameterized driving dynamic model: all geometric features of the model are driven by input design parameters and topology relations. Through preset parameter dependence relations and update sequences, the system can automatically and orderly update the whole three-dimensional model when the parameters are changed, realizes "one modification, everywhere update", significantly improves the design iteration and scheme comparison and selection efficiency, and solves the core problem of parameter and model disconnection.