Feature-Based Coordinate Reference for Aircraft Automation
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Solution Overview
Problem
Automation equipment faces challenges in accurately interfacing with objects, such as aircraft, that lack physical features for creating a coordinate reference, particularly in areas requiring precise movement and positioning, like near air inlet ducts.
Innovation Solution
A feature-based coordinate reference system using feature location blocks with target placement features and a target measuring system to place and measure targets on the object, creating a coordinate reference for synchronization with automation equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional coordinate reference methods are used on objects without physical features, then automation equipment cannot accurately interface with the object, but adding physical features may interfere with critical components or alter the object's surface
Solution Approach 1:
The patent introduces feature location blocks as intermediary devices that temporarily attach to the object's surface without interfering with critical components. These blocks serve as mediators between the automation equipment and the object, providing reference features for coordinate system establishment while being removable after the process
Solution Approach 2:
The feature location blocks and targets are placed on the object's surface before the automation process begins. This preliminary action establishes the coordinate reference system in advance, allowing the automation equipment to accurately interface with the object without requiring permanent modifications or interfering with critical components during the actual process
2Measurement precision
If targets are placed directly on the object without guidance features, then target placement precision varies, but adding target placement features increases device complexity
Solution Approach 1:
The feature location blocks incorporate localized target placement features (such as recesses, protrusions, or alignment marks) only at the specific locations where targets need to be placed. This local quality approach provides precise placement guidance without making the entire device complex, as the specialized features are confined to specific functional areas
3Loss of time
If multiple separate tools are used for placing location blocks and targets, then the process time increases, but using an integrated system increases device complexity
Solution Approach 1:
The feature location block integrates multiple functions into a single device: it provides attachment to the object, guides target placement through built-in features, and serves as a reference for coordinate system establishment. This merging of functions reduces the number of separate tools needed, decreasing process time while keeping individual device complexity manageable
Data Source
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AI summary
A method and system for creating a feature-based coordinate reference is provided. In one aspect, a system comprises a first, second, and third feature location block configured to engage a first, second, and third feature of an object, respectively. Each feature location block has a means for attachment to the object and a target placement feature. The target placement feature of each feature location block is configured to receive a respective target and guide placement of the respective target on the object. A target measuring system measures the locations of the targets on the object, and a coordinate system creates a coordinate reference based on the locations of the targets.