Remote Object Detection for Directional Microphones
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Solution Overview
Problem
Individuals with hearing loss face challenges in crowded environments due to the difficulty in detecting and separating sound sources, which increases their risk of accidents, especially in traffic situations.
Innovation Solution
A directional microphone system with a remote object detection unit that adapts its directionality based on detected objects, using electromagnetic signals to identify and classify remote objects, and communicate wirelessly with adaptable antennas to enhance sound perception and warning systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a directional microphone system is used to detect sound sources, then sound detection capability is improved, but the system complexity increases due to the need for multiple microphones and signal processing
Solution Approach 1:
The patent introduces a remote object detection unit as an intermediary that uses electromagnetic signals (independent of sound) to detect the presence and location of remote objects. This mediator provides spatial information that guides the directional microphone system, allowing it to focus on relevant sound sources without requiring complex omnidirectional detection capabilities across all directions simultaneously
Solution Approach 2:
The remote object detection unit performs preliminary detection of objects in the environment before the directional microphone system actively searches for sound sources. By pre-identifying the spatial locations of objects using electromagnetic signals, the system prepares the microphone directionality in advance, reducing the complexity of real-time sound source localization
2Measurement precision
If the directional microphone system continuously scans all directions, then sound source detection is improved, but energy consumption increases
Solution Approach 1:
The remote object detection unit continuously or periodically scans for objects using electromagnetic signals to build a spatial map of the environment. This preliminary action creates a database of object locations that the directional microphone system can query, allowing the microphones to focus only on directions where objects are present rather than continuously scanning all directions
Solution Approach 2:
The system uses feedback from the remote object detection unit to dynamically adjust the directionality of the microphone system. When objects are detected in specific directions, the microphone system directs its sensitivity toward those directions, creating a feedback loop that optimizes energy usage by avoiding unnecessary scanning of empty directions
3Reliability
If the remote object detection unit operates independently of the directional microphone system, then object detection reliability is improved, but the overall system complexity increases
Solution Approach 1:
The remote object detection unit is designed as a separate, independent subsystem that uses electromagnetic signals rather than acoustic signals. This multi-functional approach allows the same unit to perform both object detection and provide spatial information for microphone directionality control, reducing the need for additional specialized components and simplifying the overall system architecture
Solution Approach 2:
The system is segmented into functionally independent modules: a remote object detection unit that handles spatial detection using electromagnetic signals, and a directional microphone system that handles sound detection. This segmentation allows each module to operate independently with its own optimized detection methods, improving reliability while managing complexity through clear functional separation
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 enhances sound perception by directing the microphone system towards desired sound sources, providing warnings of impending dangers and maintaining reliable wireless links even in dynamic environments, thereby improving safety for individuals with hearing impairments.
Implementation Method 1
a remote object detection unit configured to detect a remote object by detecting a transmitted signal reflected from the object
Implementation Method 2
a directional microphone system having adaptable directionality
Data Source
AI summary
The present disclosure relates to an apparatus having a directional antenna system having adaptable directionality and a direction determination system configured to determine a desired direction, the directionality of the directional antenna system may be modified or adapted based on the desired direction.