Vehicle Abnormality Notification via Report Completion Notice
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Solution Overview
Problem
In V2X systems, when multiple vehicles detect an abnormal vehicle and transmit its information to a station, communication congestion occurs, leading to inefficient frequency utilization due to unnecessary information transmission.
Innovation Solution
The system implements a mechanism where a vehicle detects an abnormal vehicle, transmits abnormality information to the station, and then broadcasts a report completion notice to other vehicles, preventing further transmissions from vehicles that have received this notice, thereby reducing redundant communication and optimizing frequency use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all vehicles detecting an abnormal vehicle transmit its information to the station, then the system ensures comprehensive abnormality reporting, but communication congestion occurs and frequency utilization efficiency deteriorates
Solution Approach 1:
The patent introduces a report completion notice as an intermediary mechanism. When a vehicle transmits abnormality information to the station, the station broadcasts a report completion notice back to all vehicles. This notice acts as a mediator that prevents other vehicles from transmitting duplicate information, thereby reducing communication congestion while maintaining comprehensive abnormality reporting.
Solution Approach 2:
The system implements a feedback mechanism where the station sends a report completion notice to all vehicles after receiving abnormality information. This feedback loop allows vehicles to know whether they have already reported an abnormality, preventing redundant transmissions and optimizing frequency utilization while ensuring complete abnormality coverage.
2Loss of information
If multiple vehicles transmit the same abnormal vehicle information, then all detections are recorded, but unnecessary communication increases and reduces system efficiency
Solution Approach 1:
The report completion notice serves as an intermediary that carries information about which abnormalities have already been reported. When vehicles receive this notice, they can determine whether their detection has already been transmitted, allowing them to suppress redundant transmissions while maintaining complete abnormality detection coverage.
Solution Approach 2:
The patent merges multiple detection reports into a single transmission by having the station aggregate abnormality information from multiple vehicles. Instead of each vehicle transmitting separately, the station consolidates reports and manages the notification process, improving communication efficiency while preserving all detection data.
Data Source
AI summary
An abnormality notification device in a vehicle determines contents of situation information received from a second vehicle as abnormal at a certain timing. Then, the vehicle transmits abnormality information including identity information of the second vehicle to a station at a next timing, and transmits at a yet next timing a report completion notice notifying a nearby vehicle of the identity information of the second vehicle regarding which the abnormality information has already been transmitted to the station. When the nearby vehicle detects the second vehicle at still yet next timing as an abnormal vehicle, the nearby vehicle refrains from transmitting the abnormality information of the second vehicle at a subsequent timing, since the nearby vehicle has already received the report completion notice from the vehicle at the yet next timing. As such, unnecessary communication between a vehicle and a station is suppressed, and frequency utilization efficiency is improvable.