V2X eCall Relay Through Intelligent Infrastructure Redundancy
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Solution Overview
Problem
Existing emergency call systems in vehicles rely on cellular transmission, which may become disabled in accidents, necessitating a redundancy or alternative to ensure continuous emergency message delivery.
Innovation Solution
A vehicle-to-everything (V2X) emergency message transmission system utilizing intelligent infrastructure, including sensors, processors, and transceivers to communicate with roadside units, providing an alternative to cellular systems and ensuring message delivery even when vehicle cellular services are unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cellular transmission systems are used for emergency calls, then emergency services can be contacted, but the system becomes vulnerable to failure when cellular services are disabled in accidents
Solution Approach 1:
The patent introduces intelligent infrastructure (roadside units, base stations) as intermediary components to relay emergency messages when direct cellular transmission fails. The vehicle transceiver communicates with these infrastructure elements which then forward messages to emergency services, creating an alternative communication path that bypasses disabled cellular systems.
Solution Approach 2:
The emergency communication system is segmented into multiple independent components: vehicle sensors, vehicle transceiver, intelligent infrastructure units, and emergency services. This segmentation allows the system to maintain functionality through partial failures, as each component can operate independently or through alternative paths.
2Adaptability or versatility
If V2X communication with intelligent infrastructure is implemented, then communication redundancy is provided, but system complexity increases
Solution Approach 1:
The vehicle transceiver is designed with multi-functionality, capable of operating in both conventional cellular mode and V2X communication mode. This universal design allows the system to switch between communication paradigms without requiring entirely separate hardware systems, thereby managing complexity while providing redundancy.
Solution Approach 2:
The intelligent infrastructure provides self-service by automatically receiving, processing, and forwarding emergency messages without requiring additional vehicle systems. The infrastructure units independently manage message routing and transmission, reducing the burden on vehicle-based systems.
3Reliability
If multiple sensors and transceivers are added for V2X communication, then message reliability improves, but manufacturing cost increases
Solution Approach 1:
The system employs dynamic activation of communication modes, switching between cellular and V2X transmissions based on real-time conditions. This dynamic approach allows the system to achieve high reliability through intelligent infrastructure when needed, while relying on simpler cellular systems during normal operation, thereby managing manufacturing costs.
Solution Approach 2:
The vehicle continuously monitors cellular service availability and pre-conditions for V2X communication activation. By detecting potential failures in advance and preparing alternative communication paths, the system ensures reliability without requiring all components to be actively manufactured and deployed at full capacity.
Data Source
AI summary
A vehicle-to-everything (V2X) emergency message transmission system for transmitting a V2X emergency message, which is received at intelligent infrastructure from a vehicle by V2X communication, to emergency services. The V2X emergency message may be transmitted from the intelligent infrastructure to provide redundancy to a cellular emergency call service and modified by the intelligent infrastructure to include additional information, which is able to be detected or provided by the intelligent infrastructure and unable to be detected by sensors of the vehicle.