Vehicle Collision Warning Using Planned Route Comparison
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for alerting road vehicle drivers about approaching priority vehicles, such as ambulances or police cars, often generate false alarms or fail to alert drivers in time due to limitations in determining collision likelihood beyond intersections or when vehicles change routes, leading to reduced selectivity and reliability.
Innovation Solution
The method involves using the planned route of both vehicles to determine potential collision points by transmitting and comparing data on the current position and next part of the planned route, specifically using waypoints to assess whether vehicles are on a collision course, thereby generating alerts only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning systems alert all vehicles in the vicinity of a priority vehicle, then more drivers are warned about the approaching priority vehicle, but false alarms increase and selectivity decreases
Solution Approach 1:
The system performs preliminary route planning and intersection identification before the actual encounter with the priority vehicle. By pre-determining which intersections are relevant based on both vehicles' planned routes, the system avoids generating false alarms at irrelevant locations while ensuring timely warnings at critical points.
Solution Approach 2:
The system uses map data and route information to create a virtual representation of the road network and vehicle paths. By comparing the planned routes against map data, the system identifies potential collision points without requiring complex real-time trajectory prediction, thus reducing false alarms while maintaining reliability.
2Object-generated harmful factors
If warning systems only alert vehicles at intersections, then false alarms are reduced, but alerts are not generated timely beyond intersections when vehicles are on collision course
Solution Approach 1:
The system pre-identifies all potential collision points along the planned routes, including segments beyond intersections. By calculating future locations based on planned routes and speeds before the actual encounter, the system can issue timely warnings for collision risks that occur beyond traditional intersection points.
Solution Approach 2:
The system extends the warning scope from the traditional two-dimensional intersection model to a three-dimensional space-time model by considering future locations along the entire planned route. This allows the system to identify and warn about collision risks at any point along the vehicle paths, not just at intersections.
3Ease of operation
If systems use current position and speed data only, then the system is simple to operate, but it cannot reliably determine collision likelihood beyond intersections or when vehicles change routes
Solution Approach 1:
The system obtains planned route information in advance from the vehicles' navigation systems before the collision assessment is needed. This preliminary data collection allows the system to reliably predict future locations and assess collision risks beyond intersections without adding operational complexity during the actual warning generation process.
Solution Approach 2:
The system uses map data as an intermediary to translate planned routes and current positions into meaningful collision risk assessments. By comparing the planned routes against map data to identify intersections and potential collision points, the system bridges the gap between simple input data and reliable collision prediction without requiring complex real-time calculations.
Data Source
Figure 1
Figure 2
AI summary
A method for alerting a user of a road vehicle (B-F, 4) for a neighbouring priority vehicle (A, 1) is provided. First data, indicating to the current position of the priority vehicle and the next part of its planned route, are transmitted to other road vehicles the road vehicle and/or its user. The road vehicle and/or its user receives the first data and compares it to second data, indicating the current position of the road vehicle and/or the next part of its planned route. An alert is output to the user when the comparison of the first and second data indicates that the current position or any position within the next part of the planned route of the priority vehicle will coincides with the current position or any position within the next part of a planned route of the road vehicle. The next part of the planned route of the priority vehicle or road vehicle respectively may cover at least the next two road intersections along its planned route, making it possible to provide selective warnings for possible coincidence of the vehicles beyond the next intersection.