Decentralized Vehicle Communication for Low-Latency Route Adaptation
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Solution Overview
Problem
High-speed automated vehicles require rapid and proactive route adjustments due to unplanned events, which existing centralized communication systems fail to address effectively, leading to potential collisions and increased latency.
Innovation Solution
Implementing decentralized peer-to-peer communication among vehicles, dividing the communication area into partial areas with distinct resource subsets, and using these subsets for position signal transmission to enable fast, low-latency route adaptations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized communication systems are used for vehicle-to-vehicle communication, then infrastructure control and coordination are improved, but communication latency increases and response time deteriorates
Solution Approach 1:
The patent segments the centralized communication system into decentralized peer-to-peer communication units. Each vehicle becomes an independent communication node that can directly exchange position and route information with other vehicles without routing through a central infrastructure, thereby eliminating communication latency while maintaining coordination through distributed consensus protocols
Solution Approach 2:
The patent inverts the traditional centralized communication architecture by implementing decentralized communication where vehicles autonomously initiate and manage their own communication connections. Instead of infrastructure-controlled top-down communication, vehicles perform bottom-up self-organization, directly exchanging information in a peer-to-peer manner to achieve real-time response
2Device complexity
If reactive behavior with sensor technology is used for collision avoidance, then system complexity is reduced, but response capability deteriorates at high speeds
Solution Approach 1:
The patent implements preliminary action by having vehicles proactively communicate their planned routes and position information before potential conflicts occur. Through decentralized peer-to-peer communication, vehicles share forecasted trajectories and intent data in advance, enabling other vehicles to pre-calculate avoidance maneuvers rather than reacting to sensor-detected threats, thereby achieving high-speed response capability
Solution Approach 2:
The patent establishes continuous feedback loops where vehicles constantly transmit and receive position, velocity, and route deviation information through decentralized communication. This real-time feedback enables dynamic route adaptation and collision avoidance decision-making at high speeds, with vehicles adjusting their trajectories based on feedback from neighboring vehicles' communicated data
3Loss of time
If decentralized peer-to-peer communication is implemented, then communication latency is reduced, but resource allocation and coordination complexity increases
Solution Approach 1:
The patent segments the communication area into partial areas and allocates specific wireless resources (frequency bands, time slots, or spatial resources) to each partial area. This segmentation approach simplifies resource allocation in decentralized communication by creating localized resource management zones, reducing the overall coordination complexity while maintaining low latency through direct peer-to-peer connections within each segment
Solution Approach 2:
The patent applies local quality by allowing different resource allocation strategies and communication protocols in different partial areas based on local traffic density and communication requirements. Each partial area can independently manage its wireless resources with distinct allocation patterns, simplifying the overall system by distributing resource management decisions locally rather than requiring centralized coordination for the entire network
4Reliability
If vehicles communicate planned routes proactively, then collision avoidance capability is improved, but communication bandwidth requirements increase
Solution Approach 1:
The patent implements partial action by having vehicles communicate only the essential elements of their planned routes (key waypoints, critical trajectory parameters, and time-stamped position data) rather than complete route details. This selective communication approach maintains collision avoidance capability by sharing sufficient information for safety decisions while minimizing bandwidth consumption through partial data transmission
Data Source
AI summary
A vehicle includes a communication interface for providing wireless decentralized communication in a wireless communication environment, a driver for moving the vehicle in a spatial area. The vehicle is configured to emit a position signal comprising information associated with a vehicle position of the vehicle in the spatial area by means of the wireless decentralized communication to inform the wireless communication environment about the vehicle position.