Vehicle Notification Apparatus Switching Auditory to Visual Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle notification systems that alert drivers to obstacles during turn signal activation can be annoying due to continuous auditory notifications, especially in heavy traffic intersections, reducing driver attentiveness and increasing annoyance.
Innovation Solution
A vehicle notification apparatus that switches from both auditory and visual notifications to visual-only notifications after a predetermined time, and reverts to both notifications if the driver looks away or if no obstacle is detected for a prolonged period, optimizing driver attention without excessive auditory alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous auditory notification is given to alert the driver of an obstacle, then the driver's attentiveness to the obstacle is enhanced, but the driver feels annoyed and attentiveness decreases in heavy traffic intersections
Solution Approach 1:
The notification system alternates between auditory and visual notifications in periodic cycles. When an obstacle is detected, the system first provides auditory notification, then switches to visual notification after a predetermined time elapses. This periodic switching prevents continuous auditory annoyance while maintaining driver attentiveness through alternating notification modes.
Solution Approach 2:
The notification mode dynamically changes based on elapsed time and driver behavior. The system transitions from auditory to visual notification based on time conditions, and can revert to auditory notification if the driver looks away (detected by monitoring means). This dynamic adaptation optimizes both attentiveness and reduces annoyance.
2Reliability
If auditory notification is given continuously to maintain driver alertness, then the driver remains attentive to the obstacle, but the notification becomes excessive and annoying
Solution Approach 1:
The system implements periodic notification by switching between auditory and visual modes. After auditory notification for a predetermined time, visual notification takes over, creating a periodic pattern that maintains alertness without excessive continuous auditory output.
Solution Approach 2:
The harmful continuous auditory notification is extracted and replaced with visual notification after a predetermined time period. This separates the notification function into two distinct phases: initial auditory alert and subsequent visual maintenance, reducing overall auditory exposure while maintaining effectiveness.
3Object-affected harmful factors
If visual-only notification is given to reduce auditory annoyance, then driver annoyance decreases, but the ability to alert the driver effectively is reduced
Solution Approach 1:
The system uses periodic switching between auditory and visual notifications. Visual notification is used for extended periods to reduce annoyance, but auditory notification is reactivated periodically or when needed (e.g., when driver inattention is detected), maintaining effective alerting while minimizing continuous auditory exposure.
Solution Approach 2:
The monitoring means provides feedback on driver behavior (e.g., whether the driver is looking at the road). Based on this feedback, the system adjusts notification mode - reverting to auditory notification if the driver looks away, ensuring alerting effectiveness is maintained when needed while using visual-only mode during normal conditions to reduce annoyance.
Data Source
AI summary
The vehicle notification apparatus comprises: an operation element operated by a driver to activate a turn signal indicator; an information obtaining device that obtains information on an object around the vehicle; an auditory notification device configured to give an auditory notification; a visual notification device configured to give a visual notification; and a control unit. The control unit is configured to: perform a both-notification to let both of the auditory and the visual notification devices perform the respective notifications, until a both-notification completion condition becomes satisfied from when it is determined for the first time that the obstacle is present in a period where the signal indicator is being activated; and perform a single-notification to let the visual notification device perform the notification without activating the auditory notification device, when the obstacle is determined to be present after the both-notification completion condition becomes satisfied, in the above-described period.