Vehicle Ceiling Audio Zones for Independent Seat Sound Control
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Solution Overview
Problem
Existing sound control systems in vehicles struggle to form independent sound spaces for each seat, leading to suboptimal sound quality and inability to provide real-time sound adjustments based on changing in-vehicle situations.
Innovation Solution
A sound control system comprising a sound generating device disposed at the vehicle ceiling corresponding to each seat region, and a sound processing circuit that provides a vibration driving signal to the sound generating device, allowing it to vibrate and create an independent sound space for each seat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a voice coil type loud speaker is used in vehicles, then sound output can be provided, but it is difficult to form an independent sound space in each seat of the vehicle
Solution Approach 1:
The vehicle interior is divided into multiple independent sound spaces, with each sound space corresponding to a specific seat region. Sound generating devices are independently disposed in each sound space, enabling separate sound control for each passenger without interference from other seats.
Solution Approach 2:
Different sound generating devices are disposed at different locations corresponding to different seat regions. Each sound generating device is optimized for its specific location, providing localized sound quality enhancement and independent sound space formation for each passenger.
2Ease of manufacture
If a sound focusing algorithm is used to form an independent sound space, then sound space separation is achieved, but it is difficult to control sound in real time based on changing situations
Solution Approach 1:
The sound control system enables dynamic real-time sound adjustment based on changing in-vehicle situations. The system can adapt to various scenarios such as passenger presence, noise levels, and audio source characteristics, continuously optimizing sound delivery without being limited to pre-stored configurations.
3Ease of operation
If multiple sound generating devices are disposed at different locations, then independent sound spaces are formed, but device complexity increases
Solution Approach 1:
Multiple sound generating devices are integrated into a unified sound control system with centralized control logic. The system combines the functionality of multiple devices while managing them through a coordinated approach, reducing operational complexity despite the increased number of components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively forms independent sound spaces in vehicles, enhancing sound quality and minimizing noise interference, while also enabling real-time sound adjustments to optimize the audio experience based on current in-vehicle conditions.
Implementation Method 1
a sound generating device disposed at a vehicle ceiling corresponding to a seat region of the vehicle to correspond to the sound space... configured to vibrate based on the vibration driving signal to vibrate a vibration region of the vehicle ceiling
Data Source
AI summary
A sound control system includes a sound generating device disposed at a vehicle ceiling corresponding to a seat region of the vehicle and at a sound space formed within the vehicle to correspond to the seat region, and a sound processing circuit for providing a vibration driving signal to the sound generating device. The sound generating device vibrates an interior material of the vehicle ceiling based on the vibration driving signal.