Mobile Part Camera Cover for Coding Region Positioning
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Solution Overview
Problem
Conventional systems for determining the position of a mobile part along a rail line lack reliability due to inaccuracies in detecting deviations from the viewing direction and fail to effectively monitor for outliers, leading to potential errors in position determination.
Innovation Solution
A system with a camera on a mobile part that moves along a coding region with uniformly spaced coded areas, where a cover allows only the first coded region to be imaged, enabling precise deviation measurement and outlier detection through regression analysis and additional monitoring with lighting devices to ensure reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple coded regions are visible to the camera, then more position information is available, but the precision of deviation measurement decreases due to uncertainty about which region is being imaged
Solution Approach 1:
The patent extracts only the necessary information (one coded region) by using a cover element to block other coded regions. This ensures that the camera images only the first coded region, eliminating ambiguity and enabling precise deviation measurement without information loss about which region is being imaged.
2Reliability
If the mobile part moves at variable speed, then the system is more adaptable to different operating conditions, but the reliability of position determination decreases due to difficulties in monitoring for outliers
Solution Approach 1:
The patent implements feedback by monitoring the temporally recurrent deviation values for outliers using statistical methods (regression analysis, coefficient of determination, residual sum of squares). This feedback mechanism detects and corrects measurement errors, thereby improving the reliability of position determination while maintaining adaptability to different operating conditions.
3Ease of operation
If the camera images multiple coded regions, then the system can determine position without a cover, but the measurement precision decreases due to inability to identify which region is being imaged
Solution Approach 1:
The cover element is used to extract and isolate the first coded region, ensuring that only this specific region is imaged by the camera. This extraction approach maintains measurement precision by eliminating ambiguity about which coded region is being imaged, while the system can still operate by determining the position based on this single, clearly identified region.
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 approach provides precise and reliable position determination of the mobile part by accurately measuring deviations and detecting outliers, enhancing the system's credibility and reliability by ensuring only the first coded region is visible and using multiple coded regions for verification.
Implementation Method 1
a camera (1) arranged on the mobile part... through which an image of the first coded region can be taken by the camera
Data Source
AI summary
A system, e.g., an installation, includes a mobile part that is movable along a coding region. A camera is arranged on the mobile part and is connected to an evaluation unit of the mobile part. The coding region has coded regions arranged successively. A one-part or multi-part cover covers coded regions, and has an opening through which an image of the first coded region can be taken by the camera. The evaluation unit is adapted to temporally recurrently determined the deviation of the first coded region with respect to the viewing direction of the camera and/or to the straight line, which is aligned in parallel with the viewing direction of the camera and passes through the central point of the image sensor of the camera, and/or to a reference point in the coding region and immobile relative to the mobile part.