Vehicle Audio Volume Relay for Emergency Call Speaker Control
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Solution Overview
Problem
Existing vehicle emergency call devices do not allow users to directly adjust the volume of audio output from data communications devices, limiting user control over audio levels during emergency calls or other communications.
Innovation Solution
An information processing device connected to a volume adjustment portion receives user input to change audio output volume and notifies the data communications device, enabling the data communications device to adjust the audio output volume accordingly, even if it is not directly connected to the volume adjustment interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the data communications device outputs audio from a second speaker, then audio communication function is provided, but the user cannot adjust the volume through the volume adjustment portion
Solution Approach 1:
The information processing device serves as an intermediary between the volume adjustment portion and the data communications device. It receives volume adjustment operations from the user and notifies the data communications device of these operations, enabling indirect volume control without requiring direct connection between the volume adjustment portion and the data communications device.
Solution Approach 2:
The information processing device performs multiple functions: it processes audio from the first speaker and also controls volume for audio from the second speaker by notifying the data communications device. This multi-functionality allows a single device to manage volume control across multiple audio output paths.
2Ease of operation
If the volume adjustment portion is only connected to the first speaker, then the connection structure is simple, but the user operation cannot control the audio output from the second speaker
Solution Approach 1:
The information processing device acts as a mediator that receives volume operation signals from the volume adjustment portion and transmits these signals to the data communications device, preventing loss of the volume operation signal and enabling extended control range without additional direct connections.
Solution Approach 2:
The system establishes a feedback loop where the information processing device monitors volume adjustment operations and communicates these adjustments to the data communications device, which then modifies its audio output accordingly. This feedback mechanism ensures that user operations are reflected in the actual audio output volume.
Data Source
AI summary
A vehicle includes a first speaker, a data communications device, and an information processing device. The information processing device executes the followings: receiving a user operation to make a volume change of audio output from a first speaker provided in a vehicle, the user operation being input into a volume adjustment portion; and while the data communications device outputs audio from a second speaker, notifying the data communications device of the volume change made by the user operation input into a volume adjustment portion.