Vehicle Alert Prioritization Using Driver Recognition State
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Solution Overview
Problem
Existing vehicle control systems prioritize alerts based on estimated time to occurrence without considering the driver's situation, leading to suboptimal alert prioritization.
Innovation Solution
A vehicle control device that senses multiple alert candidates and determines the recognition situation of the driver, prioritizing alerts for targets that are farthest from the driver's sightline direction, using evaluation values combining direction and time to collision, to provide appropriate alerts reflecting the driver's situation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If alerts are prioritized based on estimated time to occurrence, then alerts with shorter time are given higher priority, but the driver's recognition situation is not considered leading to suboptimal alert prioritization
Solution Approach 1:
The system changes the prioritization parameters from solely time-based to a composite parameter that includes both time to occurrence and driver recognition situation. The control section calculates priority by combining these two factors, transforming the alert prioritization mechanism to achieve both time efficiency and reliability.
Solution Approach 2:
The system introduces feedback by continuously monitoring the driver's recognition situation (gaze direction, attention state) and using this information to adjust alert prioritization dynamically. This feedback loop ensures that alert priority reflects both temporal urgency and driver awareness state.
2Adaptability or versatility
If multiple alert candidates are sensed, then comprehensive monitoring is achieved, but determining the correct priority among them becomes complex
Solution Approach 1:
The system resolves complexity by changing the priority determination parameters to a standardized formula that combines time to occurrence and recognition situation. This parameter transformation simplifies the comparison among multiple alert candidates while maintaining comprehensive monitoring capability.
Solution Approach 2:
The control section implements a universal priority calculation mechanism that handles multiple types of alert candidates (pedestrians, vehicles, obstacles) through a single integrated approach. This multi-functional priority determination system manages diverse alert types without requiring separate complex logic for each candidate type.
Data Source
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AI summary
A vehicle control device comprises a sensing section that senses a vehicle that is a candidate for alerting, and alert control section that, in a case in which the sensing section senses plural vehicles that are candidates for alerting, determines a recognition situation with respect to the plural candidates of alert sensed by the sensing section, by a recognition situation computing section and from a state of a driver that is detected by a state detecting section that detects a state of the driver, and carries out alert control with respect to a target of alert, which is a candidate having a highest priority among the plural candidates of alert for the determined recognition situation.