Virtual Traffic Light Control for Unsignalized Intersections
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Solution Overview
Problem
Existing driving assistance systems fail to provide effective traffic arrangement for vehicles at intersections without traffic lights.
Innovation Solution
A driving assistance apparatus that uses a microprocessor and communication units to recognize surrounding environments, determine the presence of other vehicles, and display virtual traffic lights to manage traffic flow at intersections without installed traffic lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual traffic lights are displayed for a single vehicle, then the display simplicity is maintained, but the traffic arrangement capability for multiple vehicles is insufficient
Solution Approach 1:
The system segments traffic management by detecting individual vehicles approaching the intersection and assigning dedicated virtual traffic lights to each vehicle based on their specific trajectory and priority, rather than using a single unified traffic light system
Solution Approach 2:
The server acts as an intermediary that receives trajectory information from multiple vehicles, determines priority relationships, and generates appropriate virtual traffic light display patterns for each vehicle, mediating between vehicle detection and display control
2Productivity
If traffic arrangement is performed for multiple vehicles, then the traffic management effectiveness is improved, but the information processing complexity increases
Solution Approach 1:
The system performs preliminary detection of vehicle trajectories and priority determination before vehicles reach the intersection, allowing advance planning of virtual traffic light patterns and reducing real-time processing demands
Solution Approach 2:
The system continuously monitors vehicle positions and trajectories, using this feedback to dynamically adjust virtual traffic light display patterns for multiple vehicles, optimizing traffic flow while maintaining safety
Data Source
AI summary
A driving assistance apparatus configured to perform a driving assistance for a first vehicle and a second vehicle traveling at an intersection where no traffic light is installed. The driving assistance apparatus includes an electronic control unit including a microprocessor, wherein the microprocessor is configured to perform: recognizing a surrounding environment around the first vehicle; determining a presence or absence of the second vehicle in the surrounding environment; setting a display mode of the virtual traffic light for the first vehicle and the second vehicle, based on information acquired through a communication unit of each of the first vehicle and the second vehicle and a determination result of the presence or absence of the second vehicle; and transmitting information indicating the display mode to the first vehicle and the second vehicle through the communication unit.