Rail Positioning via Segmented Coding System
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Solution Overview
Problem
Existing rail systems face challenges in determining rail positions reliably and efficiently without altering the rail's cross-section, which is typically constant and uniform.
Innovation Solution
A rail system with a coding system comprising segments attached to the rail, each with varying height and/or wall thickness, allows for distance measurement to determine rail positions using a sensor, and an evaluation unit processes these measurements to identify rail positions accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the rail cross-section is made variable to enable position determination, then measurement precision is improved, but manufacturing complexity increases and the rail can no longer be produced as a simple profile part
Solution Approach 1:
The coding system is divided into discrete segments that are attached to the rail at specific positions. Each segment contains coding information that enables position determination without requiring the entire rail to have variable cross-section. The segments are separated and can be independently manufactured and attached.
Solution Approach 2:
The coding function is extracted from the rail structure itself and placed into separate coding segments that are attached to the rail. This allows the rail to maintain its simple profile part construction while the coding segments provide the necessary geometric variations for position determination.
2Measurement precision
If coding segments are attached to the rail, then position determination capability is improved, but device complexity increases
Solution Approach 1:
The coding segments are merged with the rail structure by attaching them directly to the rail body. This integration allows the coding system to function as part of the existing rail infrastructure without requiring separate positioning systems or additional complex components.
Solution Approach 2:
The coding segments serve multiple functions: they provide position determination through their geometric coding, they can be attached to standard profile parts, and they enable the rail system to function as both a structural support and a measurement reference.
3Measurement precision
If segments are placed close to the running surface for accurate detection, then measurement precision is improved, but the mobile unit's wheel movement is interfered with
Solution Approach 1:
The coding segments are positioned in a spatial dimension that does not interfere with the wheel's rolling path. By placing segments on the rail body rather than on the running surface, the system achieves position determination without creating harmful interference with wheel movement.
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 reliable and efficient rail position determination without changing the rail's cross-section, ensuring smooth movement and robustness against environmental influences.
Implementation Method 1
the segments have a variable height and/or wall thickness in the rail direction... a position on the segment can be uniquely assigned to each measured distance in the segment's detection range
Data Source
Figure 1
AI summary
The invention relates to a rail system with a rail, a coding system, a mobile part that can be moved along the rail and a method for operating a rail system, wherein the coding system has segments arranged behind one another in the rail direction, which are secured to the rail, in particular screwed onto same, wherein the mobile part has a sensor for determining the distance between the sensor and the next adjacent segment of the coding system to the sensor, wherein each segment has a coding region and a detection region.