Attachment Trajectory Resetting for Changing Load Positions
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Solution Overview
Problem
Existing systems for setting target trajectories of attachments on work machines are inefficient due to the inability to adapt to changing positions of objects to be loaded, particularly when dealing with multiple object sizes and positions.
Innovation Solution
A system that includes a target trajectory setting unit, an imaging device, an end point moving unit, and a target trajectory resetting unit, which sets and adjusts the target trajectory of a specific part of the attachment based on ambient information from the imaging device to ensure efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the target trajectory is set in advance based on fixed positions, then the operation can be automated, but the attachment cannot reach the object to be loaded when its position changes
Solution Approach 1:
The target trajectory is made dynamic by continuously updating it based on real-time position information of the object to be loaded obtained through imaging devices. The control unit recalculates the trajectory whenever the object's position changes, allowing the automated system to adapt to moving targets while maintaining automation.
Solution Approach 2:
The system employs feedback mechanisms where imaging devices continuously monitor the position of the object to be loaded, and this information is fed back to the control unit which adjusts the target trajectory accordingly. This closed-loop control enables the automated operation to respond to position changes effectively.
2Productivity
If the target trajectory is adjusted in real-time based on ambient information, then the attachment can reach the object to be loaded, but the system complexity increases
Solution Approach 1:
The control unit performs multiple functions including trajectory calculation, position analysis, and adjustment control within a single integrated system. The imaging devices serve dual purposes of environmental monitoring and position detection, reducing the need for separate specialized components and managing system complexity.
Solution Approach 2:
The system automatically adjusts the target trajectory without requiring manual intervention when position changes are detected. The control unit autonomously processes imaging data, recalculates trajectories, and updates control parameters, enabling the system to self-correct and maintain productivity without increasing operational complexity.
Data Source
AI summary
A system for setting a target trajectory of an attachment allows for an efficient operation of the attachment. The system includes a target trajectory setting unit which sets a target trajectory of a specific part of an attachment between a target start point at which an operation for moving the attachment holding a load extracted from a work object to above an object to be loaded is started and a target end point at which this operation is finished, an imaging device which images the surroundings of a work machine including the object to be loaded as ambient information, an end point moving unit which moves the target end point based on the ambient information, and a target trajectory resetting unit which resets the target trajectory between the target start point and a target end point after movement.