Vehicle D2D Communication for Accident Data Collection
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Solution Overview
Problem
Current accident information management systems in vehicles often lack comprehensive data, as they rely solely on images and sensor information from the vehicle's own black box, failing to capture all necessary information for fair accident investigation, especially when multiple vehicles are involved in an accident.
Innovation Solution
An accident information management apparatus that enables direct Device-to-Device (D2D) communication between vehicles to share accident-associated information, including images and vehicle state data, using a multi-hop communication scheme to select witness vehicles and upload data to a server for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only the vehicle's own black box images and sensor information are used, then the device complexity is reduced, but the completeness and accuracy of accident information is insufficient
Solution Approach 1:
The accident information gathering system is segmented into multiple independent vehicles, where each vehicle contributes its own black box images and sensor data. This segmentation allows comprehensive information collection without requiring a complex centralized system, as each vehicle independently provides its data through V2V communication protocols.
Solution Approach 2:
V2V communication acts as an intermediary mechanism that enables information exchange between vehicles without requiring direct physical connection or complex centralized infrastructure. The communication protocol serves as a mediator that facilitates data sharing while maintaining system simplicity.
2Measurement precision
If D2D communication is implemented between vehicles, then the accuracy of accident investigation is improved, but the device complexity increases
Solution Approach 1:
The V2V communication system is designed with multi-functionality, serving both accident investigation and general vehicle communication needs. This universal design reduces the need for specialized complex communication hardware, as the same communication infrastructure supports multiple functions including data sharing, location tracking, and accident reporting.
3Loss of information
If multi-hop communication scheme is used to select witness vehicles, then the thoroughness of accident information gathering is improved, but the loss of time increases
Solution Approach 1:
Vehicles continuously exchange information including location, speed, and identification data before accidents occur. This preliminary action ensures that when an accident happens, the necessary witness vehicle information is already available in the system, eliminating the need for time-consuming real-time searches and enabling immediate thorough information gathering.
Data Source
AI summary
An accident information management apparatus for acquiring accident associated information such as images stored in a black box (i.e., black box images) from a peripheral vehicle through direct communication between vehicles when an accident such as a traffic accident occurs, a vehicle including the accident information management apparatus, and a method for managing accident information are disclosed. The vehicle includes an antenna array having a plurality of antenna elements configured to transmit and receive a signal; and a beamformer configured to adjust a phase of the signal transmitted from the antenna elements so as to form a beam pattern focused in a specific direction; and a controller configured to focus the beam pattern onto a peripheral vehicle so as to control a communication unit to transmit a request signal of accident associated information. The antenna array and the beamformer are contained in the communication unit.