Vehicle Siren Detection With Directional Emergency Alerts

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Solution Overview

Problem

Current emergency vehicle alert systems do not effectively inform drivers of the type and direction of approaching emergency vehicles until they are within visible or audible range, posing safety risks, especially for hearing-impaired individuals or those distracted while driving.

Innovation Solution

An emergency vehicle detection device with microphones to detect frequencies emitted by emergency vehicles and a light unit that illuminates specific colors and patterns to indicate the vehicle's type and direction, along with a speaker to provide auditory alerts, allowing drivers to anticipate and respond to approaching emergency vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If emergency vehicles use lights and sirens to alert drivers, then driver awareness of emergency vehicle approach is improved, but drivers cannot determine the type or direction of the emergency vehicle until it is within visible range

Engineering Contradiction:
Improveinformation about emergency vehicle type and directionVSAvoidtime for driver to react
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system performs preliminary detection of emergency vehicle sirens using microphones before the vehicle is visible to the driver. The processor analyzes the siren signals to determine vehicle type and direction, then activates lights and displays information in advance, giving drivers head start reaction time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces intermediary components (microphones, processors, indicator lights, display screens) that mediate between the emergency vehicle siren and the driver. These intermediaries extract and convey information about vehicle type and direction before direct visual contact is made

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If drivers rely on audible sirens to detect emergency vehicles, then detection is possible, but hearing-impaired drivers or those listening to loud music remain unaware until the vehicle is very close

Engineering Contradiction:
Improveemergency vehicle detection reliabilityVSAvoidadaptability to different driver conditions
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system provides multiple alert modalities (visual lights, visual display, and potentially haptic feedback) in addition to auditory alerts. This multi-functional approach ensures that drivers with hearing impairments or those in noisy environments can still detect and respond to emergency vehicles through visual channels

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the detection device provides comprehensive information about emergency vehicle type and direction, then driver safety is improved, but the device complexity increases

Engineering Contradiction:
Improvedriver safetyVSAvoiddetection device structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system segments the detection and information presentation functions into distinct modules: microphones for audio detection, processors for signal analysis and vehicle type determination, separate indicator lights for directional information, and display screens for additional details. This modular segmentation manages complexity while providing comprehensive safety information

Inventive Principle:
Principle #1Segmentation

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

Enhances driver awareness of emergency vehicle type and direction, improving safety by providing timely alerts that are both visual and auditory, thereby reducing the risk of accidents and ensuring vigilance even for hearing-impaired or distracted drivers.

Implementation Method 1

a plurality of microphones removably connected to at least a portion of the vehicle to detect at least one frequency emitted from an emergency vehicle

Methodology Applied
Scientific EffectAcoustic wave detection: Sound

Data Source

PatentUS11990039B2Emergency vehicle detection device
Publication Date: 2024.05.21 FESLER JAMES
  • US11990039B2 patent drawing

AI summary

An emergency vehicle detection device, including a main body to be removably disposed on at least a portion of an interior of a vehicle, a plurality of microphones removably connected to at least a portion of the vehicle to detect at least one frequency emitted from an emergency vehicle, and a light unit connected to the main body to illuminate based on at least one of a type of the emergency vehicle and a direction of approach of the emergency vehicle.