Vehicle Backup Communication Mode Selection
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Solution Overview
Problem
Autonomous and semi-autonomous vehicles face safety risks due to communication breakdowns in RF communications, which can occur due to environmental conditions or malicious jamming, leading to unreliable vehicle-to-vehicle information exchange.
Innovation Solution
The system monitors primary RF communication modes and intelligently selects a backup communication mode based on various factors, including reliability, priority, and environmental conditions, using alternative sensors and systems such as light, radar, and visible displays to ensure continuous vehicle-to-vehicle messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If primary RF communication mode is used for vehicle-to-vehicle messaging, then communication speed and bandwidth are improved, but reliability deteriorates due to environmental conditions, channel overload, or RF jamming
Solution Approach 1:
The system dynamically changes communication parameters by switching between different communication modes (RF, optical, acoustic) based on environmental conditions and message priority. This allows the system to adapt to varying reliability requirements while maintaining adequate communication speed for each mode.
Solution Approach 2:
The communication system implements dynamic mode selection where the backup communication mode is chosen based on real-time assessment of RF communication reliability, message priority, and environmental factors. This dynamic adaptation resolves the contradiction by allowing the system to switch to more reliable modes when RF communication deteriorates.
2Reliability
If backup communication modes with sensors and systems are selected, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The system uses existing multi-functional vehicle components (sensors, displays, lighting systems) for backup communication purposes. By making these existing components serve dual purposes - their primary functions plus backup communication - the system avoids adding dedicated backup communication hardware, thus limiting complexity increase while improving reliability.
Solution Approach 2:
The system leverages existing vehicle sensors and systems to provide backup communication capabilities without requiring separate dedicated backup communication hardware. The vehicle's existing infrastructure serves itself for both primary and backup communication functions.
Data Source
AI summary
Techniques for determining an alternative communication mode for vehicle-to-vehicle communication at a host vehicle can include monitoring the primary mode of RF communication to ensure it is effectively communicating and, if not, intelligently selecting a backup communication mode comprising one or more other sensors and/or systems of the vehicle. The selection of the backup communication mode may take into account various factors that can affect the various modes of communication from which the backup communication mode is selected.