Work Object Release Position Correction for Tip Attachments
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Solution Overview
Problem
Existing work machines face challenges in appropriately loading or releasing work objects at preset target positions due to variations in the state of the work object held by the tip attachment.
Innovation Solution
A work assistance system and program that includes a controller with a work position setting unit, state determination unit, and work position correction unit to set and adjust the target release position based on the state of the work object, using sensors and imaging devices to determine the object's shape, position, and properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the loading operation is performed at a preset target position, then the work object can be loaded onto the platform, but the work object may not be appropriately loaded into the container due to variations in the state of the work object held by the tip attachment
Solution Approach 1:
The system captures images of the work object with an imaging device, determines its state (including protrusion height from the tip attachment), and uses this feedback information to dynamically correct the target release position. This closed-loop feedback mechanism allows the system to adapt to variations in work object state while maintaining precise loading.
Solution Approach 2:
The system performs preliminary determination of the work object's state before the release operation. By capturing images and analyzing the work object's position and shape in advance, the system calculates the appropriate correction value ahead of time, ensuring accurate release positioning without delays during the actual operation.
2Ease of operation
If a fixed target position is used for releasing the work object, then the operation is simple, but the work object may not be appropriately released to the preset target position depending on the state of the work object
Solution Approach 1:
The system automatically captures images, determines the work object's state, calculates correction values, and adjusts the target release position without requiring manual intervention. This self-service approach maintains operational simplicity while achieving high release position accuracy through automated image processing and position correction.
Solution Approach 2:
The system dynamically changes the target release position parameter based on the determined state of the work object. By adjusting the release position coordinates according to the work object's actual position and shape, the system maintains both operational simplicity and release accuracy without requiring complex manual adjustments.
3Productivity
If the tip attachment releases the work object without position correction, then the operation is fast, but the work object may not be appropriately positioned in the container
Solution Approach 1:
The system performs all necessary image capture, state determination, and position correction calculations before the release operation. This preliminary action ensures that the actual release executes quickly with the pre-calculated correction already applied, maintaining high productivity while achieving accurate positioning.
Solution Approach 2:
The system replaces manual position adjustment mechanisms with automated image-based detection and calculation. By using imaging devices and computational algorithms to determine and correct release positions, the system achieves both high operation speed and precise positioning without mechanical adjustment delays.
Data Source
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AI summary
This work machine includes a machine body and an attachment. A work assistance system 1 includes a controller. The attachment is operably attached to the machine body. The attachment includes a tip attachment for performing work. The controller includes a work position setting unit, a state determination unit, and a work position correction unit. The work position setting unit sets a work position that is a target position at which the tip attachment releases a work object. The state determination unit determines a state of the work object captured by the tip attachment. The work position correction unit corrects the work position with a correction value based on the state of the work object.