3D Combined Model Generation Using Detachable Reference Members
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Solution Overview
Problem
Existing 3D modeling methods for scenes, such as buildings, do not effectively incorporate secondary physical property values like temperature and color into the models, and lack accurate representation in external geodetic coordinates, limiting their accuracy and utility.
Innovation Solution
A method and system that acquire both primary and secondary 3D models, where primary models represent scene elements with local coordinates and secondary models represent scene elements with additional physical property values, using detachable reference members with recognizable appearances to generate a 3D combined model with both types of values, and coordinates in an external geodetic frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing 3D modeling methods are used, then the model represents the scene geometry, but the model does not incorporate secondary physical property values like temperature and color
Solution Approach 1:
The patent combines primary 3D geometric models with secondary physical property models (temperature, color, humidity, etc.) into a unified multi-physical 3D model. This merging integrates multiple information types that were previously separate, allowing the model to simultaneously represent both geometric structure and physical properties of scene elements.
Solution Approach 2:
The modeling system is designed to handle multiple types of physical properties (temperature, color, humidity, pressure, etc.) through a universal framework. The same base members and reference members can be used across different measurement types, and the system can process various sensor data formats through common coordinate transformation and registration procedures.
2Measurement precision
If existing 3D modeling methods are used, then the model is created in local coordinates, but the model lacks accurate representation in external geodetic coordinates
Solution Approach 1:
The patent introduces base members with known geodetic coordinates as intermediary reference objects between the local 3D scanning coordinate system and the external geodetic coordinate system. These base members serve as mediators that enable accurate coordinate transformation through measured transformations, linking the two coordinate systems with known positional relationships.
Solution Approach 2:
The system performs preliminary measurement of the transformation between local and geodetic coordinate systems using base members with known coordinates before final model generation. This preliminary action establishes the coordinate relationship in advance, enabling accurate geodetic positioning of all scene elements without requiring complex real-time transformations during scanning.
3Adaptability or versatility
If base members are permanently fixed to scene elements, then the model maintains stable coordinates, but the system cannot adapt when scene elements are moved or updated
Solution Approach 1:
The system uses detachable reference members that can be connected and disconnected from base members, allowing the configuration to adapt dynamically. When scene elements need to be moved or updated, the reference members can be detached from old base members and attached to new ones, maintaining coordinate reliability through re-measurement of transformations while enabling model updates.
Solution Approach 2:
The system separates the coordinate reference function from the scene elements themselves by using independent base members and detachable reference members. This segmentation allows the coordinate reference system to be independently updated or repositioned without affecting the scene elements, enabling flexible model updates while maintaining coordinate stability through the persistent base member infrastructure.
Data Source
AI summary
A method for generating a 3D combined model that represents a scene includes acquiring the coordinates in an external geodetic frame, acquiring at least one 3D primary model representing the scene, which model includes primary model elements, oriented in the geodetic frame. The primary model elements are assigned measured primary physical property values in the form of coordinates in a local three-dimensional coordinate system of the corresponding point. The method further includes generating a 3D secondary model representing the scene, wherein at least some secondary model elements are assigned coordinates in the local coordinate system and at least one secondary physical property value. At least some secondary model elements are assigned coordinates in the external geodetic frame. The primary and at least one secondary model are then combined. Also disclosed are a related system and reference members for use in the system.