Vehicle External Event Detection for Driver Isolation
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Solution Overview
Problem
The increasing isolation of drivers due to noise cancellation and double insulation features in vehicles reduces their awareness of external events, such as emergency vehicles, leading to potential collisions despite advanced accident avoidance technologies.
Innovation Solution
A vehicle system comprising microphones, cameras, audio and video analog-to-digital converters, and a hardware processor that detects external sounds and images, determines their sources, and takes actions like alerting the driver, adjusting vehicle settings, and controlling components like windows and seatbelts to ensure awareness of emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If noise cancellation and double insulation features are implemented, then driver comfort and relaxation are improved, but driver awareness of external events deteriorates
Solution Approach 1:
The patent introduces an intermediary system (audio output device and processing system) that mediates between the isolated driver and external events. The system captures external sounds, processes them to identify specific events (sirens, horns, crashes), and presents them to the driver through audio outputs, thus restoring awareness without compromising the insulating features.
Solution Approach 2:
The patent replaces the mechanical/passive system of direct sound transmission through open windows or reduced insulation with an electronic/acoustic system. Microphones, processors, and audio output devices substitute for the natural acoustic path, allowing selective amplification and presentation of external sounds while maintaining the physical barrier.
2Loss of information
If audio processing and analysis systems are added to detect external events, then driver awareness is improved, but device complexity increases
Solution Approach 1:
The patent makes the audio system multi-functional by using the same audio processing infrastructure for both entertainment/music playback and external event detection. The audio output device serves dual purposes: delivering entertainment content and alerting drivers to external events, thereby reducing the need for separate dedicated detection hardware.
Solution Approach 2:
The system uses the vehicle's existing audio system components (speakers, microphones, processors) to perform the additional function of external event detection and alerting. Rather than requiring completely separate hardware, the existing audio infrastructure serves itself by being repurposed for safety monitoring functions.
Data Source
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AI summary
As automotive luxury has been increasing, the isolation of the driver from the outside world has increased due to features, such as noise cancellation and double insulation windows. These features are great for increasing driver comfort and relaxation, but drastically reduce a driver's awareness of events occurring outside of the vehicle.