Vehicle Position Capture Using Concrete Reinforcement Profiles
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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 accurate vehicle positioning and orientation using correlation methods and light communication for directional correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing methods for determining vehicle position are used, then position determination can be achieved, but material outlay and system complexity increase significantly
Solution Approach 1:
The reinforcement structure in the concrete floor serves dual purposes: its primary structural function and its secondary function as a positioning reference. The existing reinforcement pattern automatically provides the reference profile without requiring additional positioning infrastructure, making the environment serve itself for positioning purposes.
Solution Approach 2:
Instead of installing physical positioning markers or transmitters throughout the environment, the system creates a digital reference profile by measuring the electromagnetic signal characteristics of the existing reinforcement structure at various positions, then uses this copied signal profile for position determination.
2Measurement precision
If existing positioning systems are deployed, then position and orientation can be determined, but cost and material outlay increase
Solution Approach 1:
The concrete floor's reinforcement structure, which is already present for structural purposes, is utilized as the positioning reference. This eliminates the need to deploy additional material such as positioning markers, transmitters, or specialized infrastructure, thereby reducing material outlay while maintaining measurement precision.
3Reliability
If conventional positioning methods are used, then vehicle location can be tracked, but environmental protection is compromised due to extensive material deployment
Solution Approach 1:
The method uses the existing reinforcement structure in the concrete floor for positioning purposes, eliminating the need to deploy additional physical materials into the environment. This reduces environmental impact while maintaining reliable position determination through electromagnetic signal measurement.
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-material-outlay determination of vehicle position and orientation, facilitating autonomous vehicle control and improved safety through precise position monitoring 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... the polarization of the light is rotated by a second angle
Implementation Method 4
linearly polarized light from a stationary transmit module 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.