3D Scanner Control Method for Reducing Overlapping Scan Ranges
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Solution Overview
Problem
The existing three-dimensional printing process involves a complicated scanning process due to the need to acquire and manage multiple predetermined positions of a mechanical arm, which complicates the acquisition of accurate scanning data.
Innovation Solution
A scanning control method that involves preliminary scanning of an object to establish a scanned model, determining second predetermined positions based on the scanned model and watertight model, and controlling the scanner to scan at selected positions on a scanning plane to obtain a three-dimensional model, thereby simplifying the scanning process by reducing intersection and overlapping of scanning ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mechanical arm acquires multiple predetermined positions to control the scanner, then the scanning coverage is improved, but the process complexity increases
Solution Approach 1:
The system performs preliminary scanning automatically to generate the scanned model, which then serves itself to determine the second predetermined positions. This self-service mechanism eliminates the need for manual acquisition of multiple predetermined positions, reducing process complexity while maintaining comprehensive scanning coverage.
Solution Approach 2:
A preliminary scanning step is performed before the main scanning process to obtain a scanned model. This preliminary action provides the foundation for determining optimal scanning positions, allowing the system to plan the scanning path in advance and avoid complex real-time position management.
2Measurement precision
If the scanner scans at multiple predetermined positions, then the three-dimensional model accuracy is improved, but the scanning count increases
Solution Approach 1:
The system uses the scanned model obtained from preliminary scanning as feedback to determine the second predetermined positions. This feedback mechanism allows the system to identify the most informative scanning positions, ensuring high three-dimensional model accuracy while minimizing the number of scanning operations required.
Solution Approach 2:
The system changes the parameter of scanning positions from fixed predetermined positions to dynamically determined second predetermined positions based on the scanned model. This parameter change enables the system to adapt scanning positions to the actual object geometry, improving accuracy while reducing redundant scans.
3Adaptability or versatility
If the scanner moves in three-dimensional space, then the scanning flexibility is improved, but the movement complexity increases
Solution Approach 1:
The system projects the three-dimensional scanning problem onto a two-dimensional scanning plane. By determining second predetermined positions on this plane and using the rotating carrier for the third dimension, the system simplifies mechanical arm movement while maintaining scanning flexibility through the combination of planar movement and object rotation.
Data Source
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Figure 3
AI summary
The present disclosure provides a scanning control method and apparatus, a system, a storage medium, and a processor. The control method includes: controlling a scanner to preliminarily scan a to-be-scanned object according to a predetermined path to obtain a scanned model of the to-be-scanned object; determining second predetermined positions of the scanner corresponding to respective first predetermined positions of the to-be-scanned object according to the scanned model; and controlling the scanner to scan, at least at part of the second predetermined positions, the to-be-scanned object at the corresponding first predetermined positions until a three-dimensional model is obtained. According to the control method, scanning positions of the scanner are determined according to the scanned model obtained by preliminary scanning and positions of the to-be-scanned object, and part of the scanning positions are selected for scanning. The intersection and overlapping of scanning ranges are avoided, and the scanning count is reduced, so that a process of scanning the three-dimensional model is simpler than the related art.