Position-Sensing Tool Guidance for Accurate Edge Detection
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Solution Overview
Problem
Existing tools face challenges in accurately determining the location of edges on flat facets or smooth contours of materials, such as plywood, making it difficult to follow visual guides and perform precise operations like cutting or drawing.
Innovation Solution
A system with a probe and sensors is used to detect the edge of a material by probing points on the outline, using techniques like lateral probing and force detection to determine the tool's position, and includes a cavity to direct dust away from the cutting area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual following of visual guides is used, then operation simplicity is maintained, but positioning precision deteriorates
Solution Approach 1:
The patent replaces manual visual tracking with an automated sensor-based positioning system. Sensors detect fiducial markers on the material surface, and a computing device calculates tool position and orientation automatically, substituting human manual guidance with automated optical/electronic detection and computation.
Solution Approach 2:
The patent introduces fiducial markers as intermediary objects placed on the material surface. These markers serve as mediators between the tool's sensors and the material being processed, enabling precise position detection without requiring direct visual interpretation by the operator.
2Adaptability or versatility
If edge detection on smooth contours is attempted, then adaptability to different material shapes is improved, but detection reliability deteriorates
Solution Approach 1:
The patent uses fiducial markers as reliable intermediary reference objects that are placed on the material surface. These markers provide consistent, easily detectable geometric features that serve as reliable mediators between the sensor system and various material shapes, enabling accurate positioning regardless of the underlying material contour.
Solution Approach 2:
The patent changes the detection parameter from attempting to directly detect material edges (which varies with shape) to detecting fiducial marker positions (which have consistent, known geometric parameters). This parameter transformation allows the system to adapt to different material shapes while maintaining detection reliability through the consistent marker geometry.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate positioning and guiding of tools along a predetermined path, allowing for precise operations like cutting or drawing by detecting edges and managing dust effectively.
Implementation Method 1
Using one or more sensors, the system can determine the 3D position or location of the probe in an arbitrary coordinate frame
Implementation Method 2
The system can receive indication that the probe geometry is in contact with the edge of the material
Implementation Method 3
a vacuum may be coupled to the tool such that the dust can be extracted via the channel
Data Source
AI summary
A position sensing tool for enabling topographical measurements of a working surface is provided. The tool includes sensors for mapping the tool environment and for positioning of the tool within the environment. The tool enables tracking of tool activity within the environment. The tool enables design and fabrication collaboration with other computer systems. The tool enables user and tool environment safety using tool positional, user position and tool environment awareness. Certain embodiments of the tool permit automated guidance of tasks in the tool environment.