Vehicle Distance Determination Using Intercept Theorem
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Solution Overview
Problem
Existing driver assistance systems lack an effective method to determine the distance of a vehicle from traffic-regulating objects independently of GPS signals, which is crucial for automated vehicle guidance without driver intervention.
Innovation Solution
A method and device that utilize an image-taking device and evaluation device to determine the distance of a vehicle from traffic-regulating objects by calculating the image size and object size using the intercept method, allowing for automated vehicle guidance without GPS dependence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS signals are used for position determination, then the accuracy of position determination is improved, but the system becomes dependent on external signals and less reliable in GPS-denied areas
Solution Approach 1:
The patent introduces an intermediary method using camera images and the intercept theorem to determine distance to traffic-regulating objects. This intermediary approach allows the system to function independently of GPS signals by using visual data and geometric relationships to calculate position information, thereby resolving the dependency on external GPS signals while maintaining measurement capability.
2Adaptability or versatility
If the system determines distance based on image size and object size using the intercept method, then the system can operate independently of GPS, but the measurement precision may be affected
Solution Approach 1:
The patent replaces the mechanical/GPS-based position determination system with an optical/visual system using camera images. By substituting the GPS signal-based approach with image processing and the intercept theorem, the system achieves GPS independence while maintaining distance measurement capability through visual geometric relationships.
3Extent of automation
If automated vehicle guidance is implemented without driver intervention, then the extent of automation is improved, but the complexity of the control system increases
Solution Approach 1:
The patent implements self-service functionality where the driver assistance system autonomously determines its position relative to traffic-regulating objects using camera images and the intercept theorem, without requiring external GPS signals or driver input. The system independently evaluates images, calculates distances, and executes guidance actions, thereby achieving automation while managing system complexity through self-contained operation.
Data Source
AI summary
A method is provided for determining a distance of a vehicle from a traffic-regulating object, including the following steps:taking an image of the vehicle surroundings,in case of the presence of a traffic-regulating object in the image taken, determining an image size of the object in the image taken,providing an object size of the object in the vehicle surroundings,determining the distance of the vehicle from the object based on the image size and on the object size.A corresponding device, a corresponding driver assistance system, as well as a corresponding computer program are also provided.