Traffic-Infrastructure Unit Danger Potential Detection

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Solution Overview

Problem

Existing traffic-infrastructure systems lack effective methods to determine and mitigate the danger potential between vehicles and other road users, such as pedestrians or bicyclists, leading to potential hazards due to limited consideration of position, movement direction, and velocity.

Innovation Solution

A method and device for a traffic-infrastructure unit that detects vehicles and other road users using sensors and radio links, determines danger potential based on position, movement direction, and velocity, and operates to emit warning signals, such as optical, acoustic, or radio alerts, to counteract the identified risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traffic-infrastructure systems use basic detection methods without considering position, movement direction, and velocity, then the system complexity is reduced, but the measurement precision of danger potential is insufficient

Engineering Contradiction:
Improvedanger potential determination accuracyVSAvoiddetection and processing system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The danger potential determination is segmented into multiple independent evaluation dimensions: position analysis, movement direction analysis, and velocity analysis. Each dimension is processed separately by dedicated detection modules, allowing comprehensive assessment while maintaining modular system architecture that balances precision with manageable complexity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If traffic-infrastructure systems implement comprehensive danger potential determination using position, movement direction, and velocity, then the reliability of safety assessment is improved, but the loss of time for processing increases

Engineering Contradiction:
Improvesafety assessment reliabilityVSAvoidprocessing time for danger potential determination
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system continuously pre-processes and maintains updated information about road users' positions, movement directions, and velocities in real-time, even before a specific danger situation arises. This preliminary data preparation enables rapid danger potential assessment when needed, improving reliability without significant additional processing delays during critical moments.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If traffic-infrastructure units emit warning signals selectively based on determined danger potential, then the object-affected harmful factors are reduced, but the device complexity for selective operation increases

Engineering Contradiction:
Improvedanger to road usersVSAvoidtraffic-infrastructure unit operation complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The warning signal emission is applied locally and selectively only to specific road users who are determined to be at risk, rather than broadcasting to all road users uniformly. The traffic-infrastructure unit identifies individual vulnerable road users based on their position, movement direction, and velocity relative to vehicles, and emits targeted warning signals only to those needing protection, reducing overall harm while managing operational complexity through selective activation.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10078961B2Method and device for operating a traffic-infrastructure unit including a signal source
Publication Date: 2018.09.18 ROBERT BOSCH GMBH
  • US10078961B2 patent drawing
  • US10078961B2 patent drawing
  • US10078961B2 patent drawing

AI summary

A traffic-infrastructure unit and a method for operating a traffic-infrastructure unit encompassing a signal source, the method having a step of detecting at least one vehicle, a step of detecting at least one further road user, a step of determining a danger potential for the at least one further road user due to the at least one vehicle, and a step of operating the traffic-infrastructure unit as a function of the determined danger potential.