Work Machine Ripper Display System for Remote Operation Positioning
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Solution Overview
Problem
Operators face challenges in recognizing the relative positions of a work machine and its target during remote operation, leading to decreased work efficiency.
Innovation Solution
A display system for work machines that includes a three-dimensional data acquisition unit, an image data acquisition unit, a contact position calculation unit, a contact position image generation unit, and a display control unit, which combines three-dimensional data and images to display the contact position of the ripper point with the work target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If remote operation is used for the work machine, then operator safety is improved, but operator's ability to recognize relative positions deteriorates
Solution Approach 1:
The patent introduces an intermediary system consisting of three-dimensional data acquisition devices, image acquisition devices, and a display control device. This intermediary processes and presents spatial information to the operator, bridging the gap between remote operation and position awareness. The intermediary converts complex spatial relationships into comprehensible visual displays, allowing operators to maintain safety while regaining position recognition capabilities.
Solution Approach 2:
The patent transitions from two-dimensional camera images to three-dimensional spatial representation by acquiring and processing three-dimensional data of the work target. This dimensional enhancement allows the operator to perceive depth, distance, and relative positions more accurately, compensating for the loss of spatial awareness inherent in remote operation.
2Adaptability or versatility
If operator skill varies, then operational flexibility is improved, but distance judgment accuracy deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the display control device continuously provides visual information about the work target and ripper point position to the operator. This feedback loop compensates for variations in operator skill by providing objective distance and position data, allowing operators of different skill levels to achieve consistent distance judgment accuracy while maintaining operational flexibility.
Solution Approach 2:
The patent replaces the operator's subjective distance judgment capability with an automated measurement and display system. The three-dimensional data acquisition and processing systems objectively measure distances and positions, substituting the mechanical skill of distance estimation with precision instrumentation, thereby equalizing performance across operators with varying skills.
3Productivity
If visual information about contact position is provided, then work efficiency is improved, but system complexity increases
Solution Approach 1:
The patent designs the display control device to perform multiple functions: acquiring three-dimensional data, acquiring images, calculating ripper point positions, generating contact position images, and displaying combined visual information. By making this single device multi-functional, the system provides comprehensive work efficiency improvements without proportionally increasing overall system complexity.
Solution Approach 2:
The patent merges the three-dimensional data acquisition, image acquisition, calculation processing, and display functions into an integrated system. The display control device combines multiple information streams (3D data, images, contact position calculations) into a unified visual presentation, reducing the complexity that would arise from separate independent systems while maintaining comprehensive functionality to improve work efficiency.
Data Source
AI summary
A display system of a work machine includes a three-dimensional data acquisition unit that acquires three-dimensional data of a work target of ripper working equipment coupled to a vehicle body of a work machine, an image data acquisition unit that acquires a work target image showing an image of the work target, a contact position calculation unit that calculates, based on the three-dimensional data, an initial position of a ripper blade edge provided in a shank of the ripper working equipment, and a moving path of a ripper point, a contact position with which the ripper point comes into contact in the work target, a contact position image generation unit that generates a contact position image showing the contact position, and a display control unit that combines the work target image and the contact position image and causes a display device to display a combined image.