Vehicle-to-Everything Navigation With Multi-Regional BSM Exchange
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Solution Overview
Problem
Vehicles operating outside their home region face communication failures due to differing regional standards for Vehicle-to-Everything (V2X) Basic Safety Messages (BSMs), and navigational routes may not account for all relevant conditions or events, leading to incomplete information and potential operational failures.
Innovation Solution
Implementing a method for generating and processing V2X BSMs using multi-regional standards and establishing minimum-event navigational routes through centralized processing, enabling vehicles to exchange data and navigate effectively across different regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vehicle uses regional V2X standards for BSM transmission, then communication reliability is improved within the home region, but communication compatibility deteriorates when operating outside the home region
Solution Approach 1:
The patent implements a dual-mode BSM transmission system where the OBU can operate under regional standards (for home region compatibility) or multi-regional standards (for cross-regional compatibility). This multi-functionality allows the same communication system to adapt to different operational contexts, resolving the contradiction between regional reliability and cross-regional compatibility.
Solution Approach 2:
The system dynamically switches between regional and multi-regional BSM standards based on the vehicle's geographic location and communication needs. The OBU determines whether to transmit using regional standards (when in home region) or multi-regional standards (when outside home region), making the communication protocol flexible and context-dependent rather than static.
2Measurement precision
If an RSU provides navigational route information, then navigation accuracy is improved for the covered route portion, but information completeness deteriorates for the overall route
Solution Approach 1:
The patent combines information from multiple RSUs along the navigational route to create a comprehensive route assessment. Instead of relying on a single RSU's limited coverage area, the system aggregates data from multiple RSUs to evaluate the entire route, merging partial information into complete navigational guidance.
Solution Approach 2:
The system transitions from evaluating navigation routes within a single RSU's two-dimensional coverage area to assessing the entire three-dimensional route by incorporating data from multiple RSUs at different locations. This dimensional expansion allows comprehensive route evaluation beyond any single RSU's limited perspective.
3Reliability
If a vehicle coordinates with an RSU to establish a minimum-condition route, then route safety is improved, but operational flexibility deteriorates when moving beyond RSU coverage area
Solution Approach 1:
The system performs preliminary route evaluation by coordinating with RSUs to identify minimum-condition routes before the vehicle begins traversal. By pre-assessing route safety and establishing optimal paths while within RSU coverage, the system prepares navigational data that maintains operational flexibility even when the vehicle moves beyond the RSU's coverage area.
Data Source
AI summary
A first vehicle-to-everything (V2X) device may operate in compliance with a first regional standard governing V2X Basic Safety Messages (BSMs) for a first geographical region, and a second V2X device may operate in compliance with a second regional standard governing V2X BSMs for a second geographical region. When the first V2X device is operating within the second geographical region, it may generate “global BSMs” in accordance with a multi-regional standard governing V2X BSMs. The second V2X device may process global BSMs generated by the first V2X device and may respond by generating its own global BSMs.