Downlink Vehicle Communication Priority System for Transit Events
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Solution Overview
Problem
As the number of connected vehicles increases, downlink vehicle communication experiences significant delays and latency, particularly during transit-impacting events like traffic jams or unsafe road conditions, which can compromise safety as not all vehicles receive timely alerts, with some requiring more urgent notifications than others based on their location and capabilities.
Innovation Solution
A method and system for determining a downlink communication priority order by categorizing transit-impacting events and assigning priority scores to vehicles based on their geographical location and characteristics, allowing for tailored and expedited communication of alerts to vehicles that need them most, thereby reducing overall latency and improving safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If downlink communication is transmitted to all connected vehicles, then communication coverage is improved, but communication delay and latency increase significantly
Solution Approach 1:
The system segments the vehicle fleet into priority groups based on transit-impacting event relevance. Vehicles are categorized into different priority levels (e.g., high priority for vehicles approaching the event location, low priority for vehicles far away), allowing the communication system to transmit alerts to different segments of vehicles at different rates, thus reducing overall latency while maintaining comprehensive coverage.
Solution Approach 2:
The system applies local quality by tailoring communication priority to individual vehicles based on their specific characteristics and location relative to the transit-impacting event. Vehicles closer to the event or with higher vulnerability are assigned higher priority, while vehicles farther away receive lower priority, optimizing the balance between coverage and speed for each local case.
2Productivity
If downlink communication priority is assigned based on vehicle location and characteristics, then communication efficiency and safety are improved, but system complexity increases
Solution Approach 1:
The system changes parameters such as communication priority level, transmission speed, and message formatting based on vehicle location and characteristics. By dynamically adjusting these parameters rather than using a fixed complex routing system, the patent achieves improved efficiency with relatively simple modification rules that can be implemented through standard communication protocols.
3Loss of information
If all vehicles receive comprehensive alert information, then information completeness is improved, but transmission time and latency increase
Solution Approach 1:
The system applies partial action by providing different levels of information completeness based on vehicle priority. High-priority vehicles receive comprehensive alert information immediately, while low-priority vehicles receive summarized or delayed information. This ensures that critical information is transmitted completely and timely to the most vulnerable vehicles without unnecessarily delaying transmission to less critical vehicles.
Data Source
AI summary
Systems and methods are provided for prioritizing downlink vehicle communication. Such systems and methods leverage transit-impacting event category determinations, and transit-impacting event category-specific parameters to quickly (and efficiently) provide tailored downlink vehicle communication priority orders to requesting transit-related services.