Intersection Signal Violation Warning Using V2X and Sensor Fusion
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Solution Overview
Problem
Existing collision warning systems are unable to predict collisions at intersections outside of line-of-sight situations and cannot warn drivers about vehicles violating traffic signals, especially those not equipped with V2X terminals.
Innovation Solution
An apparatus and method using vehicle-to-everything (V2X) communication and sensors to identify and warn drivers about vehicles violating traffic signals, even in non-line-of-sight scenarios, by transmitting signal violation information between vehicles and infrastructure, and fusing topography and traffic light information to determine signal violations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensor-based collision warning systems are used, then collision risk can be detected in line-of-sight situations, but they cannot predict collisions in non-line-of-sight environments at intersections
Solution Approach 1:
The patent combines sensor-based detection with V2X communication technology to create a hybrid warning system. The sensor unit detects vehicles in line-of-sight situations while the V2X terminal receives and transmits signal violation information from other vehicles and infrastructure, merging both approaches to achieve comprehensive collision prediction across all situations including non-line-of-sight environments
Solution Approach 2:
The patent introduces V2X communication as an intermediary mechanism that bridges the gap between vehicles and infrastructure. The V2X terminal acts as a mediator to receive traffic signal information from base stations and share violation information with nearby vehicles, enabling warning capabilities in situations where direct sensor detection is not possible
2Loss of information
If V2X communication is used to identify signal violations, then traffic light information can be utilized, but vehicles without V2X terminals cannot be monitored
Solution Approach 1:
The patent uses the V2X terminal as an intermediary to receive traffic signal information from base stations and transmit it to nearby vehicles. This mediator approach allows the system to monitor vehicles without V2X terminals by having equipped vehicles share violation information through V2V communication, thereby extending coverage to all vehicles in the area
Solution Approach 2:
The system implements a feedback mechanism where the V2X terminal receives traffic signal information from infrastructure, processes it to identify violations, and then transmits this information to nearby vehicles. This feedback loop ensures continuous monitoring and information sharing, allowing the system to track signal violations of all vehicles including those without direct V2X equipment
3Device complexity
If existing collision warning systems are used, then they can operate with simple sensors, but they cannot provide comprehensive warnings at intersections without traffic light information
Solution Approach 1:
The patent merges simple sensor-based detection with V2X communication infrastructure to create a comprehensive warning system. The sensor unit provides basic collision detection while the V2X terminal integrates traffic light information from base stations, combining both approaches to achieve high reliability in intersection warning without excessive complexity
Solution Approach 2:
The V2X terminal serves multiple functions: receiving traffic signal information from base stations, determining signal violations, transmitting violation information to nearby vehicles, and providing collision warnings. This multi-functionality allows the system to operate effectively at intersections without requiring separate dedicated components for each function
Data Source
AI summary
A method of providing a warning about a vehicle in violation of a traffic signal, including: transmitting, by a rear vehicle driving behind a front vehicle entering an intersection in a first direction, signal violation information to a nearby vehicle entering the intersection in a second direction different from the first direction through vehicle-to-vehicle (V2V) communication when the rear vehicle determines whether the front vehicle is in violation of a traffic signal at the intersection using sensing information obtained by sensing the front vehicle and determines that the front vehicle is in violation of the traffic signal; and generating, by the nearby vehicle, a warning about a risk of collision with the front vehicle using the signal violation information transmitted from the rear vehicle.