In-Vehicle Guidance Audio Separation for Clear Driver Cues
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Solution Overview
Problem
Existing in-vehicle devices often confuse or annoy drivers by overlapping voice guidance from navigation and automatic driving functions, leading to misinterpretation of route instructions due to simultaneous or consecutive outputs of similar guidance.
Innovation Solution
An information providing device with a controller that outputs route guidance information via mechanized speech and automatic driving guidance information through distinct sound effects from separate speakers, eliminating the need for arbitration of output timings and allowing auditory differentiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If speech arbitration is used to manage overlapping guidance from navigation and automatic driving functions, then output timing can be controlled, but driver confusion increases due to consecutive or contradictory voice outputs
Solution Approach 1:
The patent segments the guidance information into two distinct types: navigation guidance (route information) and automatic driving guidance (vehicle control information). Each type is processed and output through separate channels, allowing independent management without interference. This segmentation prevents the contradiction by eliminating overlapping outputs while maintaining comprehensive guidance coverage.
2Loss of information
If voice guidance from both navigation and automatic driving functions is output simultaneously, then complete information is provided, but driver annoyance and confusion increase
Solution Approach 1:
The patent introduces a guidance information output control unit as an intermediary that receives guidance information from both navigation and automatic driving functions. This intermediary unit intelligently determines whether to output each type of guidance based on current vehicle state and guidance timing, preventing simultaneous output while ensuring neither information source is lost. The mediator resolves the contradiction by coordinating outputs to avoid driver distraction while maintaining information completeness.
Data Source
AI summary
An information providing device to be mounted on a vehicle. The vehicle includes control means and control means for transmitting, when the vehicle is controlled by automatic driving, a control signal for outputting route guidance information for informing a driver of the vehicle about a specified route by mechanical speech, and a control signal for outputting automatic driving guidance information for informing the driver of the vehicle about a route of the vehicle driven by automatic driving by a sound effect.