Dynamic Pattern Graphics for Vehicle Positioning
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Solution Overview
Problem
Existing methods for determining the position and orientation of a motor vehicle with respect to markings are not universally compatible across different vehicles and detection devices, leading to suboptimal recognition and evaluation of markings, especially in multi-storey car parks where multiple systems are used simultaneously.
Innovation Solution
A method utilizing dynamically adaptable pattern graphics displayed by stationary display devices, which can be adjusted in color, brightness, size, and shape based on vehicle-specific requirements, allowing for improved position and orientation determination by transmitting display information to control devices that manage these displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If static markings are used for position and orientation determination, then the system is simple to implement, but the recognition and evaluation are not optimally compatible across different detection devices and vehicles
Solution Approach 1:
The patent applies dynamics by transitioning from static markings to dynamic, adaptable pattern graphics that can be customized in real-time. The control device generates and displays different pattern graphics (such as QR codes, AR codes, or geometric patterns) adapted to the specific detection device being used, allowing the same infrastructure to serve multiple detection systems optimally without requiring multiple fixed marking systems
Solution Approach 2:
The patent utilizes parameter changes by modifying the visual parameters of the pattern graphics (color, brightness, size, shape) based on the characteristics of the detection device. The control device receives information about the detection device type and adjusts the pattern graphic parameters accordingly, enabling optimal recognition across different devices while maintaining a single flexible infrastructure
2Adaptability or versatility
If multiple different marking systems are used simultaneously to support various detection devices, then adaptability improves, but symbol interference occurs and position/orientation determination is compromised
Solution Approach 1:
The patent extracts the marking content from fixed physical markings and relocates it to dynamic display devices. This allows the system to display only the specific pattern graphic needed for each detection device at any given time, eliminating the problem of multiple marking systems being displayed simultaneously and causing symbol interference, while still supporting multiple detection systems through sequential or selective display
3Measurement precision
If fixed markings are applied in the environment, then the infrastructure is simple, but the markings cannot be optimally recognized by all vehicle detection devices
Solution Approach 1:
The patent introduces a control device as an intermediary between the detection devices and the display devices. This control device receives information about the detection device characteristics, processes this information, and generates appropriate pattern graphics for display. This intermediary layer enables high measurement precision by adapting the markings to each detection device while managing the complexity centrally rather than requiring complex fixed infrastructure
Data Source
Figure 1
AI summary
Method for determining position information describing the position and/or orientation of a motor vehicle (3, 4) with respect to at least one stationary display device (9, 11), comprising the steps of: - sending display information to a vehicle-external control unit (7) controlling the display device (9, 11) by means of a transmitting device (6, 14) of the motor vehicle (3, 4), - determining a pattern graphic depending on the display information and controlling the display device (9, 11) to display the pattern graphic by the control unit (7), - acquiring image data depicting at least part of the pattern graphic by means of at least one acquisition device (5, 13) of the motor vehicle (3, 4), and - determining the position information depending on the image data by means of a processing device (10, 15) of the motor vehicle (3, 4).