Emergency Vehicle Position Statement V2V Warning
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Solution Overview
Problem
Existing systems fail to effectively inform drivers of other vehicles about the location and direction of approaching emergency vehicles, leading to inadequate reaction times and safety hazards, particularly at intersections.
Innovation Solution
The method involves transmitting a position statement from emergency vehicles to receiving vehicles via vehicle-to-vehicle communication, which includes position coordinates and direction information, allowing for map matching and presentation of this data to the driver through visual and auditory indicators, such as arrows and sound signals, to clearly indicate the emergency vehicle's position and movement relative to the receiving vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If emergency vehicles use horn and blue light to indicate emergency service, then other road users should notice and yield, but the warning is often not noticed or noticed late causing hazard situations
Solution Approach 1:
The system transmits position data and warning signals from the emergency vehicle to receiving vehicles in advance of the emergency vehicle's arrival. This allows receiving vehicles to be warned before the emergency vehicle reaches them, providing sufficient time to react and avoid hazards, thus resolving the contradiction between warning effectiveness and reaction time.
2Reliability
If traffic lights capture GPS coordinates and predict emergency vehicle trajectory, then junction safety is improved, but the system becomes very complex in hardware and coordinate capture
Solution Approach 1:
The patent extracts the essential function of trajectory prediction from the complex traffic light control system. Instead of requiring traffic lights to capture GPS coordinates and perform complex trajectory analysis, the system only needs to receive and display position data from the emergency vehicle, significantly reducing hardware and system complexity while maintaining safety improvements.
3Loss of information
If emergency vehicle position is transmitted to receiving vehicles, then driver orientation is improved, but additional information processing is required
Solution Approach 1:
The system creates a simplified representation of the emergency vehicle's position relative to the receiving vehicle. Instead of processing raw GPS coordinates and performing complex calculations, the system directly computes and displays the relative position (direction and distance) as a simplified copy of the essential information, reducing processing requirements while maintaining orientation accuracy.
Data Source
AI summary
A method and an apparatus for warning of emergency vehicles in emergency service. The emergency vehicles use vehicle-to-vehicle communication to transmit warning messages which are received by other vehicles and are indicated to the driver of the receiving vehicle. In order to allow rapid orientation of the driver, provision is made for the warning message from the emergency vehicle to have a position statement for the emergency vehicle and for the position statement to be evaluated in the vehicle which receives the warning message, wherein the position of the emergency vehicle is indicated relative to the position of the receiving vehicle.