Work Implement Image Projection to Reduce Operator Refocusing
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Solution Overview
Problem
Existing augmented reality (AR) systems for working machines require operators to split their attention between the display and the work implement, leading to precarious and tiresome operations.
Innovation Solution
The implementation of an image projection arrangement on the working machine, allowing information to be projected directly onto the surface of the work implement facing the operator compartment, eliminating the need for a dedicated display and reducing focal depth issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a display screen is arranged within the operator compartment to present AR information, then the operator can receive information about the working machine and work implement, but the operator must split attention between the display and the work implement, making operation precarious and tiresome
Solution Approach 1:
The patent transitions the information display from a two-dimensional screen within the operator compartment to a three-dimensional projection on the work implement itself, allowing information to be displayed in the operator's field of view without requiring head movement or attention splitting
Solution Approach 2:
The work implement serves as an intermediary surface that carries the projected information, acting as a bridge between the operator and the control system without requiring a separate display device
2Loss of information
If a head-mounted display is used to provide AR information, then the operator can see the work implement even when obstructed, but the operator is forced to wear additional equipment that increases complexity and potential discomfort
Solution Approach 1:
The patent extracts the display function from the operator's head (removing the HMD) and relocates it to the work implement itself, eliminating the need for additional wearable equipment while maintaining information visibility
Solution Approach 2:
The system creates a visual copy of the work implement with overlaid information projected onto it, allowing the operator to see both the physical implement and the digital information simultaneously without wearing HMD equipment
3Loss of information
If information is displayed on a fixed or mobile display device, then the operator can receive assistance information, but focal depth issues arise requiring the operator to re-focus when switching gaze between the work implement and the display
Solution Approach 1:
The patent merges the information display with the work implement surface itself, combining the physical object and the digital information into a single visual plane that eliminates focal depth switching requirements
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
This solution allows operators to focus on the task at hand, projecting information where and when needed, reducing operator fatigue and improving safety by eliminating the need for a head-mounted display.
Implementation Method 1
an image projection arrangement for projecting an image at a surface of the working machine means facing the operator compartment
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
The present disclosure generally relates to a working machine (100), wherein the working machine (100) is provided with an image projection arrangement (200) specifically adapted for projecting an image at a surface of an external component comprised with the working machine (100). The present disclosure also relates to a corresponding method and computer program for such a working machine (100).