Coordinate Transformation Control for Large-Structure Positioning
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Solution Overview
Problem
Existing systems face challenges in accurately transforming positional data between different coordinate systems in measurement and processing systems, particularly when dealing with large structures and movable parts, leading to inefficiencies in processing operations.
Innovation Solution
A measurement system that includes a measurement apparatus and a measurement control apparatus, capable of transforming positional data between a measurement coordinate system and a processing coordinate system using transformation matrices, and a processing control apparatus that controls the processing apparatus based on transformed positional data, enabling precise coordination between measurement and processing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual calibration methods are used to associate positions between measurement and processing systems, then system compatibility is achieved, but processing time and operational complexity increase
Solution Approach 1:
The patent uses measurement light (laser) to create optical copies/representations of member positions and shapes. The measurement apparatus captures light reflected from members to generate position data, effectively copying spatial information without physical contact or manual measurement, thus reducing calibration time while maintaining accuracy
Solution Approach 2:
The patent replaces manual mechanical calibration operations with an automated optical measurement system. The measurement apparatus uses laser light to automatically detect member positions and the control apparatus automatically transforms coordinates, substituting the mechanical/manual calibration process with an optical-electronic system that is both faster and more accurate
2Measurement precision
If complex coordinate transformation calculations are performed manually, then position accuracy is maintained, but processing complexity and time increase
Solution Approach 1:
The measurement control apparatus performs coordinate transformation calculations automatically using stored transformation formulas and measured position data. The system serves itself by automatically processing raw measurement data through mathematical transformations to generate processed position information, eliminating the need for manual calculation while maintaining precision
Solution Approach 2:
The patent introduces a control apparatus as an intermediary between the measurement apparatus and the user. This intermediary automatically performs the complex coordinate transformation calculations using pre-stored transformation formulas, mediating between raw optical measurement data and usable position information without requiring user involvement in the complex mathematical operations
3Adaptability or versatility
If separate measurement and processing systems are used, then system specialization is achieved, but coordination accuracy and operational efficiency decrease
Solution Approach 1:
The measurement system is designed with universal coordinate transformation capabilities that can handle multiple types of members (workpieces, jigs, fixtures) and multiple coordinate systems. The control apparatus can transform positions between measurement coordinate system and processing coordinate system, making the system adaptable to various measurement and processing configurations while maintaining unified coordination
Solution Approach 2:
The system establishes feedback loops where the measurement apparatus continuously monitors member positions, the control apparatus transforms these positions through coordinate calculations, and the processed position information is used to control processing operations. This closed-loop feedback ensures that the specialized measurement and processing systems remain accurately coordinated through continuous position information exchange
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
Enables efficient and accurate transformation of positional data, allowing for precise control of processing operations, thereby improving the processing efficiency and accuracy of large structures.
Implementation Method 1
a measurement apparatus configured to apply measurement light to a first member attached to at least one of a processing target and a jig for holding the processing target, and to a second member attached to a movable part of a processing apparatus
Data Source
AI summary
A measurement system includes: a measurement apparatus measuring a position of a first member attached to at least one of a processing target and a jig and a position of a second member attached to a movable part of a processing apparatus in a measurement coordinate system; and a measurement control apparatus controlling the measurement apparatus. The measurement control apparatus includes: an arithmetic unit transforming the position of the second member in the measurement coordinate system to a position of the second member in a processing coordinate system based on first position information indicating the position of the first member in the measurement coordinate system and second position information indicating the position of the first member in the processing coordinate system; and a transmission unit transmitting third position information indicating the transformed position of the second member in the processing coordinate system, to a processing control apparatus.