Vehicle Communication Controller Filtering Event Data
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Solution Overview
Problem
Existing vehicle-to-vehicle communication systems transfer unnecessary information to drivers, leading to potential annoyance and safety risks, as well as increased traffic congestion and communication delays.
Innovation Solution
A communication apparatus and method that determine the necessity of transferring event information to a third vehicle based on the status of that vehicle, using a multihop wireless network to evaluate and decide on the transfer of information, thereby reducing unnecessary information transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If event information is transferred from second vehicle to first vehicle without filtering, then information availability for drivers is improved, but unnecessary information transfer increases causing driver annoyance and safety risks
Solution Approach 1:
The system performs preliminary determination of the third vehicle's status (position, speed, direction) before transferring event information. The controller evaluates whether the third vehicle is in a state where the event information would be useful (e.g., approaching the event location, traveling in the same direction) and only transfers information when appropriate, preventing unnecessary information from reaching drivers.
Solution Approach 2:
The system continuously monitors the status of the third vehicle and uses this feedback to dynamically decide whether to transfer event information. By evaluating real-time vehicle status (position, speed, direction) against the event information relevance criteria, the system adjusts information transfer decisions to maximize usefulness while minimizing driver annoyance and safety risks.
2Productivity
If event information is transferred to all receiving vehicles, then information dissemination is improved, but communication delays and traffic congestion increase
Solution Approach 1:
The system extracts and evaluates specific status parameters (position, speed, direction) of the third vehicle to determine information transfer necessity. By selectively transferring event information only to vehicles whose status indicates they would benefit from the information, the system reduces overall communication traffic and prevents congestion while maintaining effective information dissemination to relevant vehicles.
3Measurement precision
If status determination of third vehicle is performed before information transfer decision, then information transfer accuracy is improved, but processing complexity increases
Solution Approach 1:
The status determination process is segmented into distinct evaluation steps: determining the third vehicle's position relative to the event location, assessing speed and direction, and evaluating the relevance of event information to the vehicle's current state. This segmented approach improves transfer accuracy by systematically checking each criterion while managing processing complexity through structured, modular evaluation.
Data Source
AI summary
A communication apparatus is mounted on a first vehicle. The communication apparatus comprises: a communication interface configured to perform wireless communication with a communication apparatus mounted on a vehicle other than the first vehicle; and a controller configured to: determine, when event information is received by the communication interface, the event information indicating occurrence of an event and having been transferred from a communication apparatus mounted on a second vehicle different from the first vehicle, a status of a third vehicle different from the first vehicle and the second vehicle, and decide, based on result of the determination, whether to cause the communication interface to perform transfer of the event information to a communication apparatus mounted on the third vehicle.