Vehicle-to-Vehicle Sensing for Hidden Non-V2X Traffic
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Solution Overview
Problem
V2X vehicles face challenges in detecting non-V2X vehicles due to limited sensor range or obstruction, leading to incomplete information about surrounding vehicles, which can result in inefficient driving or potential collisions at intersections.
Innovation Solution
Equipping V2X vehicles with sensors to detect and share information about non-V2X vehicles, allowing them to adapt their driving based on data received from other V2X vehicles, even if direct communication with non-V2X vehicles is not possible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication between vehicles is implemented using existing cellular networks, then communication coverage can be achieved, but communication delays occur and high communication costs are incurred
Solution Approach 1:
The patent segments the communication system into two parts: critical safety messages use dedicated short-range wireless communication (DSRC) for immediate transmission, while non-critical information uses cellular networks for cost-effective coverage. This segmentation resolves the contradiction by ensuring time-critical communications avoid cellular delays while maintaining overall system reliability.
Solution Approach 2:
The patent introduces a hybrid communication architecture as an intermediary between vehicles and infrastructure, combining DSRC access points for low-latency critical communications with cellular networks for broader coverage. This intermediary layer allows vehicles to switch between communication modes based on message priority, resolving the time-delay issue while maintaining reliability.
2Area of stationary object
If wireless communication between vehicles is implemented using existing cellular networks, then communication coverage can be achieved, but high communication costs are incurred
Solution Approach 1:
The patent segments communication traffic into priority-based categories where only essential safety-critical messages use expensive cellular networks, while routine communications use lower-cost alternatives. This segmentation maintains necessary coverage areas while dramatically reducing overall communication costs.
Solution Approach 2:
The patent changes the parameter of communication protocol selection based on message priority and content type. By dynamically adjusting which communication channel (cellular vs. DSRC) is used for different message types, the system maintains adequate coverage for critical functions while minimizing energy expenditure on communications.
3Speed
If dedicated wireless communication infrastructure is deployed for vehicle-to-vehicle communication, then communication delay is reduced, but device complexity and infrastructure cost increase
Solution Approach 1:
The patent makes existing cellular base stations and DSRC access points serve multiple functions: they handle both traditional communications and vehicle-to-vehicle message routing. This multi-functionality reduces the need for entirely new dedicated infrastructure, thereby lowering device complexity while maintaining fast communication speeds for critical messages.
Solution Approach 2:
The system implements self-service through automated message prioritization and routing decisions at the network edge, where access points automatically determine the optimal transmission path without requiring complex centralized control. This reduces infrastructure complexity by distributing intelligence to the network perimeter rather than requiring sophisticated central management systems.
Data Source
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AI summary
Certain aspects of the present disclosure provide techniques relating to wireless communications between vehicles. In certain aspects, a method performed by a first vehicle comprises receiving an indication from a second vehicle comprising surrounding information that is indicative of whether a first unknown vehicle is detected by the second vehicle, wherein the first vehicle and the second vehicle are able to communicate wirelessly, and wherein the first unknown vehicle is unable to communicate wirelessly with the first and the second vehicles. The method further comprises controlling movement of the first vehicle based on the indication.