Robot Path Modification via Reference Point Shift
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Solution Overview
Problem
Current methods for modifying robot paths are complex, error-prone, and require significant user expertise, as they involve sequential modification of individual path points, often leading to unintended changes in the surrounding robot path.
Innovation Solution
A method that allows for the specification of a modification area with two or more path points, where a reference point is modified to automatically adjust the entire area, preventing unintended changes to adjacent points and enabling users to modify entire sections by shifting a single reference point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual path points are modified sequentially, then the robot path can be adjusted to accommodate new obstacles or process changes, but the modification process becomes complex, error-prone, and requires high user expertise while causing unwanted changes in adjacent path points
Solution Approach 1:
Multiple individual path point modifications are merged into a single modification operation. The system identifies a sequence of path points and applies a unified modification approach where modifying one reference point automatically triggers coordinated modifications of adjacent points, transforming multiple discrete modification tasks into one integrated operation.
Solution Approach 2:
The robot path is segmented into distinct modification areas and non-modification areas. By defining start and end path points, the system creates a bounded modification zone where changes are confined, preventing unwanted propagation to adjacent path points outside this zone. This segmentation allows localized modifications without affecting the entire path.
2Manufacturing precision
If individual path points are modified sequentially, then specific local changes can be made, but the remaining robot path in the vicinity experiences unwanted changes
Solution Approach 1:
The system preemptively prevents unwanted changes by establishing a modification area boundary before modifications occur. The start and end path points define a protection zone that shields adjacent path points from unintended modifications. This preliminary anti-action mechanism ensures that modifications are contained within the specified area, counteracting the potential harmful effect of propagation to neighboring points.
Solution Approach 2:
Different regions of the robot path are assigned different modification properties. Within the modification area (between start and end path points), path points are permitted to change. Outside this area, path points are protected from modification. This local differentiation allows precise control over where changes occur, enabling high precision modifications exactly where needed while preserving the integrity of surrounding path sections.
3Adaptability or versatility
If multiple path points are modified individually, then comprehensive path adjustments can be achieved, but the time required for modification increases significantly
Solution Approach 1:
The system performs preliminary identification and grouping of path points that require modification. By automatically detecting sequences of path points and defining modification areas, the system prepares the modification structure in advance. This preliminary action eliminates the need for users to manually specify each point, enabling comprehensive modifications to be initiated through a single operation rather than multiple individual steps.
Solution Approach 2:
The modification system performs self-service by automatically identifying path points within the modification area and executing coordinated modifications without requiring user intervention for each individual point. The system autonomously determines which path points fall within the bounded area and applies modifications systematically, enabling comprehensive path adjustments to be achieved through automated processes rather than manual point-by-point editing.
Data Source
Figure 1~2
AI summary
A method in accordance with the invention for modification of a robot path (B) which has a plurality of path points (P1,...,P10) comprises the following steps: (S20) specificying a modification region (M) which has at least two path points (P2,...,P10) of the robot path; (S30, S40) specifying a modification (νR) of a reference point (R) of the modification region; and (S50) automated modification of the modification region, in particular of path points of the modification region, on the basis of the specified modification.