Angle Measuring Unit for Real-Time Six-DOF Position Tracking
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Solution Overview
Problem
Current measuring systems for calibrating machine tools and coordinate measuring machines are labor-intensive, require trained specialists, and lack the capability for real-time online tracking of positioning information with high precision, especially for six degrees of freedom.
Innovation Solution
A measuring system utilizing an angle measuring unit with sensors, reflective elements, and strategically placed light sources to determine the angle of incidence of light, allowing for quick and precise calculation of positioning information, enabling real-time tracking by calculating the positioning of reflective elements in space across all six degrees of freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measuring systems are used for calibration, then positioning information can be obtained, but the process requires trained specialists and involves great effort
Solution Approach 1:
The measuring system enables automated self-calibration through the angle measuring unit and light source configuration, eliminating the need for trained specialists to manually operate complex calibration procedures. The system automatically calculates positioning information from angle measurements without requiring expert intervention.
2Measurement precision
If traditional measuring systems are used, then calibration can be performed, but real-time online tracking is not possible
Solution Approach 1:
The patent replaces traditional mechanical/image processing measurement systems with an optical angle measurement system using light sources and sensors. This substitution enables real-time tracking capability while maintaining high positioning accuracy, as optical measurements can be performed continuously without the limitations of frame-based image processing.
3Productivity
If multiple image processing systems are used for real-time tracking, then tracking capability is achieved, but the system becomes complex and expensive
Solution Approach 1:
The patent combines the measurement and real-time tracking functions into a single integrated system using the angle measuring unit and light sources. This merging eliminates the need for separate image processing systems, reducing both device complexity and cost while maintaining real-time tracking capability.
4Productivity
If image processing systems are used for measurement, then real-time tracking is possible, but measuring accuracy is very limited
Solution Approach 1:
The patent replaces image processing-based measurement with optical angle measurement using light sources and sensors. This substitution achieves both high measuring accuracy through precise angle detection and real-time tracking capability, overcoming the fundamental limitation of image processing systems that sacrifice accuracy for speed.
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
The system provides high-precision positioning information, simplifies calibration processes, and allows for real-time online tracking, reducing the need for multiple image processing systems and trained operators, thereby improving operational efficiency and accuracy.
Implementation Method 1
at least one first light source arranged on the angle measuring unit, which is designed to emit light via the reflective element onto the at least one sensor
Implementation Method 2
at least one second light source arranged on the side of the reflective element and designed to emit light onto the at least one sensor
Data Source
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AI summary
The present invention relates to a measuring system 1 comprising an angle measuring unit 2 with at least one sensor 3, a reflective element 4 opposite the angle measuring unit 2, at least one first light source 5 arranged on the side of the angle measuring unit 2, and at least one second light source 6, 6' arranged on the side of the reflective element 4. The at least one first light source 5 is configured to transmit light via the reflective element 4 to the at least one sensor 3. The at least one second light source is configured to transmit light to the at least one sensor 3.The angle measuring unit 2 is designed to determine at least one angle of incidence β1 of the light from each first light source 5 onto the at least one sensor 3 and at least one angle of incidence α1, α1' of the light from each second light source 6, 6' onto the at least one sensor 3, and to calculate positioning information of the reflecting element 4 from the determined angles of incidence β1, α1, α1'. The present invention also relates to a corresponding measuring method.