Vehicle Notification Device for Automatic Driving Zone Entry
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Solution Overview
Problem
Drivers of vehicles equipped with automatic driving capabilities face uncertainty when switching from manual to automatic driving mode due to reliance on in-vehicle speaker notifications for confirming the start of an automatic driving permitted zone, lacking visual confirmation of road signs.
Innovation Solution
A notification processing device with an image acquisition unit, recognition unit, and notification units that displays captured images of road signs on a dashboard and provides auditory notifications, allowing drivers to visually verify the signs and switch modes securely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only in-vehicle speaker notification is used to inform drivers of the automatic driving permitted zone, then the notification system remains simple, but the driver cannot visually confirm the road sign leading to uncertainty in mode switching
Solution Approach 1:
The notification system transitions from a single auditory dimension to multiple dimensions by adding visual display of captured images showing the road sign. This multi-dimensional notification approach allows drivers to both hear and see the start sign, providing visual confirmation that resolves the uncertainty in mode switching while maintaining system feasibility
Solution Approach 2:
The captured image of the road sign serves as an intermediary between the external environment and the driver. By displaying the actual image of the start sign captured by the imaging device, the system provides direct visual evidence that mediates the driver's confirmation process, enabling reliable mode switching based on verified visual information
2Reliability
If the driver must switch modes based solely on auditory notification during driving, then the operation remains simple, but the driver lacks visual verification leading to potential incorrect mode changes
Solution Approach 1:
The system implements feedback by displaying the captured image of the road sign back to the driver. This visual feedback loop allows the driver to verify that the auditory notification corresponds to the actual road sign, ensuring accurate detection of zone entry while maintaining straightforward operation through intuitive visual confirmation
3Loss of information
If multiple notification modes are provided simultaneously, then the driver receives comprehensive information for secure mode switching, but the notification system becomes more complex
Solution Approach 1:
The notification system merges auditory and visual notification modes into a unified system. The control device coordinates both the speaker notification and the display device showing captured images, providing comprehensive information through integrated multi-sensory notification while managing system complexity through centralized control
Data Source
AI summary
A recognition unit recognizes a specific sign in a captured image acquired by an image acquisition unit. A first notification processing unit displays a specific captured image as a captured image showing the specific sign on a display device in a vehicle. A second notification processing unit provides a notification in a notification mode different from the display of the specific captured image. The recognition unit recognizes a start sign that is a sign indicating the start of an automatic driving permitted zone as a zone where running in an automatic driving mode is permitted, as the specific sign, in the captured image. When the recognition unit recognizes the start sign, the first notification processing unit displays on the display device a start captured image that is the captured image showing the start sign as the specific captured image. When the recognition unit recognizes the start sign, the second notification processing unit notifies the start of the automatic driving permitted zone in a notification mode different from the display of the start captured image.