Vehicle Position Capture by Correlating Concrete Reinforcement Signals
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Solution Overview
Problem
Existing methods for determining a vehicle's position along a driving route on a concrete floor with reinforcement are inefficient and require extensive material outlay, lacking a reliable and cost-effective solution for precise positioning and orientation.
Innovation Solution
A method and system utilizing a sensor to detect signals from the reinforcement in the concrete floor, combined with an evaluation device, to create a reference profile and allocate positions, allowing for precise vehicle positioning and orientation using correlation methods and light-based orientation correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground-directed radar or complex radar-based detection systems are used for vehicle positioning, then positioning reliability is improved, but device complexity and material outlay increase
Solution Approach 1:
The reinforcement structure in the concrete floor serves dual purposes: it provides structural support for the floor while simultaneously functioning as the positioning reference. The existing reinforcement pattern is detected by the sensor and used to create a unique reference profile, eliminating the need for separate positioning infrastructure or complex radar systems.
Solution Approach 2:
Instead of using complex physical positioning systems, the invention creates a simplified representation (reference profile) of the reinforcement pattern. This reference profile serves as a digital copy or map of the physical reinforcement structure, allowing position determination through pattern matching rather than complex radar measurements.
2Measurement precision
If extensive material outlay is made for positioning systems, then measurement precision is improved, but cost effectiveness deteriorates
Solution Approach 1:
The reinforcement structure that already exists in the concrete floor is utilized for positioning purposes without requiring additional materials or infrastructure. The sensor detects the existing reinforcement pattern, and this detected pattern serves as the reference for precise position determination, eliminating the need for expensive positioning materials.
Solution Approach 2:
The reinforcement in the concrete floor performs multiple functions: it provides structural strength to the floor and simultaneously serves as a positioning reference. This multi-functionality eliminates the need for separate positioning infrastructure, reducing material outlay while maintaining positioning precision.
3Reliability
If the vehicle is equipped with advanced sensor systems for position capture, then positioning reliability is improved, but device complexity increases
Solution Approach 1:
The invention extracts only the essential function needed for positioning from complex sensor systems. A simple sensor detects the reinforcement pattern, and an evaluation device processes this information to determine position. This extraction of the core positioning function eliminates the need for advanced, complex sensor systems while maintaining reliability.
Solution Approach 2:
The invention replaces complex mechanical or electronic positioning systems with a simpler electromagnetic sensing approach. The sensor detects the reinforcement pattern through electromagnetic interaction, and the evaluation device uses pattern matching algorithms to determine position, substituting complex hardware with a simpler sensing and processing system.
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 low-cost determination of vehicle position and orientation along the driving route, facilitating autonomous vehicle control and improved safety through precise positioning and deviation detection.
Implementation Method 1
the depth and/or the density and/or the thickness of the reinforcement in the concrete floor is/are determined with the aid of a radar measurement
Implementation Method 2
the depth and/or the density and/or the thickness of the reinforcement in the concrete floor is/are determined with the aid of an inductive sensor
Implementation Method 3
the polarization of the light is rotated by a first angle
Implementation Method 4
passes through a liquid crystal that is controlled such that the polarization of the light is rotated
Data Source
AI summary
In a method and system for position capture of a vehicle along a driving route, situated on a concrete floor having a reinforcement: the vehicle carries out a reference drive along the driving route, the vehicle records measuring points along the driving route, and each measuring point allocates a signal from the reinforcement to a position on the driving route; a reference profile of the driving route is determined based on the measuring points ascertained during the reference drive; the vehicle drives along the driving route and records further measuring points; a profile segment is determined from the further measuring points; the profile segment is uniquely allocated to a segment of the reference profile, e.g., using a correlation method; a position on the driving route is uniquely allocated to the vehicle with the aid of the profile segment allocated to the reference profile.