Vehicle Audio Volume Control Using UWB User Localization
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Solution Overview
Problem
Existing vehicle audio systems fail to provide a seamless and consistent audio experience for users moving around the vehicle, particularly when transitioning between interior and exterior speakers, without manual intervention.
Innovation Solution
A vehicle audio system that utilizes UWB transceivers to determine the location of a user's mobile device through trilateration, adjusting speaker volumes based on the user's location to maintain a consistent audio experience, even when the user is in motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle audio system uses fixed speaker volumes, then the system is simple to operate, but the audio experience becomes inconsistent when users move around the vehicle
Solution Approach 1:
The system dynamically adjusts speaker volumes based on real-time user location data from mobile devices. The controller continuously receives location information and modifies audio output parameters, transforming a static audio system into a dynamic one that adapts to user movement around the vehicle.
Solution Approach 2:
The system implements feedback by continuously monitoring user location through wireless communications and using this information to adjust speaker volumes. The controller creates a closed-loop system where audio output is continuously optimized based on real-time user position data.
2Reliability
If the vehicle audio system manually adjusts speaker volumes, then the audio experience can be optimized, but the ease of operation decreases
Solution Approach 1:
The audio system performs self-adjustment by automatically detecting user location and modifying speaker volumes without requiring manual user input. The controller autonomously processes location data and adjusts audio parameters, making the system self-regulating.
Solution Approach 2:
The system uses feedback from mobile device location data to automatically adjust audio output, eliminating the need for manual volume adjustments by the user.
3Area of stationary object
If the vehicle audio system uses multiple speakers with adjustable volumes, then the audio coverage improves, but the device complexity increases
Solution Approach 1:
The system applies local quality by adjusting the volume of specific speakers based on the user's relative position to each speaker. Different speakers operate at different volume levels optimized for their respective directions, providing localized audio quality tailored to user location.
Solution Approach 2:
The system dynamically redistributes audio output across multiple speakers based on real-time user location, optimizing audio coverage area while managing complexity through intelligent control algorithms.
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
Ensures a smooth and consistent audio output for users near or around the vehicle by dynamically adjusting speaker volumes based on their location, enhancing user experience and convenience.
Implementation Method 1
measuring, via one or more controllers, a location of the mobile device using the wireless connections through trilateration
Data Source
AI summary
A vehicle includes one or more wireless transceivers configured to establish one or more wireless communications with a mobile device; a plurality of speakers configured to output an audio; and a controller programmed to measure a location of a user carrying the mobile device within a predefined range from the vehicle using the one or more wireless communications, and adjust a volume of the one or more speakers using the location of the user.