AR Headset Cargo Placement Guidance for Forklift Unloading
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Solution Overview
Problem
Operators face difficulty in accurately placing cargo at a target position due to blocked forward view during container unloading, especially when the container is lifted high, making it challenging to grasp the placement position and angle.
Innovation Solution
A display device worn on the head of an operator, which includes a display unit, target position acquisition, and control unit to superimpose a predicted placement range and target placement range on the real-world view, using AR glasses to guide accurate cargo placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the container is lifted high to secure the forward view, then the operator's forward view is improved, but the operator's ability to grasp placement position and placement angle deteriorates
Solution Approach 1:
The patent introduces a fourth dimension (virtual overlay) by displaying AR information that shows the placement position and placement angle superimposed on the real-world view. This allows the operator to see both the elevated container and the placement guidance simultaneously without needing to lower the container, resolving the contradiction between forward view and placement precision.
Solution Approach 2:
The AR display acts as an intermediary that bridges the gap between the operator's elevated view and the placement target. By overlaying virtual placement information on the real-world view, the AR display mediates the operator's ability to grasp placement position and angle while maintaining the elevated container position for forward view.
2Ease of operation
If the container is lifted high to secure forward view, then the operator can see forward, but the operator cannot accurately place the container at target position
Solution Approach 1:
The AR display provides real-time feedback to the operator by showing the placement position and placement angle overlaid on the real-world view. This feedback mechanism allows the operator to accurately place the container at the target position while maintaining the elevated container position, thus improving both ease of operation and placement accuracy simultaneously.
Solution Approach 2:
By adding the virtual AR overlay dimension, the system enables the operator to access placement precision information without compromising forward view. The operator can see both the real-world environment and the precise placement guidance in the same field of view, eliminating the trade-off between ease of operation and manufacturing precision.
3Manufacturing precision
If the operator checks a monitor to confirm placement position, then placement accuracy may improve, but the operator loses continuous real-world awareness
Solution Approach 1:
The patent merges the placement guidance information with the real-world view by overlaying AR information directly in the operator's field of view. This combination eliminates the need to switch between monitor checking and real-world observation, allowing the operator to maintain continuous real-world awareness while achieving accurate placement through the superimposed guidance information.
Solution Approach 2:
The AR display serves as an intermediary that integrates placement accuracy information with the real-world view. Instead of requiring the operator to check a separate monitor, the AR display mediates by presenting both the real-world environment and placement guidance simultaneously, thus improving placement accuracy without sacrificing real-world awareness.
Data Source
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AI summary
Object Provided is a display device by which a place at which a cargo having been conveyed by an industrial vehicle is to be placed can be confirmed in advance when the cargo is unloaded. Solution The display device is a display device worn on a head of a person, the display device including: a display unit having transparency and being capable of displaying image data; a target position acquisition unit acquiring position information of a conveyance destination of a cargo conveyed by an industrial vehicle; a position information acquisition unit acquiring position information of the industrial vehicle; and a control unit displaying the image data including a target placement range of the cargo based on information of a positional relationship between the person boarding the industrial vehicle and the industrial vehicle and the position information of the industrial vehicle and the conveyance destination, and a predicted placement range of the cargo when the cargo is unloaded from the industrial vehicle, the image data being displayed such that the target placement range included in the image data is superimposed on the target placement range in a real world viewable through the display unit.