5 results about "Constraint relation" patented technology

The invention discloses a modeling method, device and equipment for parts. The method comprises the following steps: acquiring attributes of the parts; determining a graphical module according to the attribute; establishing a graphical constraint function of the part based on the graphical module; analyzing the graphical constraint function to obtain a DSL (Digital Subscriber Line) text; analyzing the DSL text to obtain an attribute parameter; according to the attribute parameters, modeling is conducted on the part, and a three-dimensional model of the part is obtained. According to the method, the graphical constraint function is established through the graphical module, check and verification can be visually carried out, check and verification do not need to be carried out on a large number of codes, the check and verification accuracy is improved, meanwhile, the attribute constraint relation can be analyzed in a special scene through the DSL, the attribute parameters used for modeling are obtained, and the modeling flexibility is improved.

The application discloses a zero-shot visual language navigation method based on graph constraint optimization, and the method comprises the following steps: performing multi-stage decomposition, constructing a directed acyclic graph comprising path point nodes and object nodes, wherein each path point node corresponds to one straight displacement and one or less rotation movement, and determining a navigation sequence through topological sorting; converting semantic constraint relationships in the directed acyclic graph into mathematical constraint conditions based on a predefined constraint library, and the constraint conditions of each path point node are constructed based on the known coordinates of its parent node; solving the coordinates of the path point nodes by using a nonlinear optimization method, verifying whether the coordinates satisfy the drivable area constraint, and generating a navigation tree structure comprising multiple possible solutions; when the current path is not feasible, backtracking to an unexplored path with the deepest common parent node through a multi-solution path management mechanism of the navigation tree, and selecting an alternative path to continue navigation until the target position is reached.

The invention discloses a method and device for establishing a specific field modeling environment. The method comprises the following steps: constructing a three-layer abstract system for specific field modeling based on a meta-meta model; generating a domain meta-model containing entity class definition, relation class definition and enumeration class definition through an automatic instantiation rule, and configuring attributes, representation forms and constraint relations; packaging the meta-model and the constraint thereof into standardized framework data with a unique identifier; loading the frame data by a runtime analysis module, dynamically generating a visual domain model editor, and enabling a user to complete model construction conforming to constraints; triggering increment verification based on an operation-level event in a model construction process; when the meta-model is updated, executing difference comparison to identify affected model elements and giving repair suggestions; and the runtime expansion of the modeling capability is realized through a plug-in mechanism.

The application discloses a semantic association type coordinate conversion method for intelligent objects in an e-commerce scenario and belongs to the technical field of artificial intelligence, and comprises the following steps: S01: analyzing an input PSD design file and identifying intelligent objects and semantic association relationships therein; S02: performing contour analysis on irregular shape objects in the commodity main body; S03: combining the constraint relationship graph with the contour analysis and converting into a unified constraint optimization problem; S04: iteratively solving the unified constraint optimization problem through a constraint solving engine to obtain a coordinate conversion result that satisfies all constraint conditions and optimizes a visual quality objective function; and S05: performing multidimensional verification on the obtained coordinate conversion result, and outputting a final coordinate set and automatically rendering and generating an e-commerce design draft that is adapted to a specified canvas size after the verification is passed.

The present invention relates to the field of civil engineering informationization and automated design technology, and in particular to a parametric construction drawing generation method based on a constraint solving algorithm, which defines the basic structure and variable parameters of the construction drawing by embedding an engineering design model with a parametric template, generates a parameter constraint relationship set in combination with the geometric constraints, dimensional constraints and logical constraints input by the user, converts the constraint rules into intermediate expressions and constructs a syntax tree using a formula parser, and generates an executable parameter association rule set through semantic verification. The audit module verifies the compliance of the drawings based on the engineering specification database and generates correction suggestions; the multi-terminal collaborative interface and the external BIM model parameter mapping realize cross-system data linkage. The present invention effectively avoids the problems of detail loss and specification deviation in three-dimensional model projection, and improves the efficiency of drawing generation and the robustness of multi-professional collaboration.