Magnetic Audio Loop for Reliable Underwater Pool Reception
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Solution Overview
Problem
Wireless audio signal transmission is challenging in aquatic environments due to signal absorption by water, preventing effective reception by devices like wireless headphones or earbuds in swimming pools and other bodies of water.
Innovation Solution
A magnetic field audio loop system that uses an induction loop amplifier to convert audio signals into a current, which is transmitted through a wire loop surrounding the aquatic environment, creating a magnetic field for reception by audio receivers, such as waterproof headphones with coil antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless radio signals (Bluetooth, WiFi) are used for audio transmission in swimming pools, then wireless audio transmission is achieved, but water absorbs the radio signals preventing effective reception
Solution Approach 1:
The patent introduces a magnetic field as an intermediary medium to transmit audio signals through water. Instead of using radio waves that are absorbed by water, the system converts audio signals into magnetic fields that can penetrate water effectively. The induction loop system creates a magnetic field that couples with a coil in the receiver, enabling signal transmission without direct radio wave propagation through water.
Solution Approach 2:
The patent replaces the electromagnetic radio wave transmission system with a magnetic field induction system. By using electromagnetic induction principles, the system transforms the transmission mechanism from radio frequency electromagnetic waves to low-frequency magnetic fields that are not absorbed by water, fundamentally changing the physics of signal transmission through the aquatic environment.
2Reliability
If a wire loop is used to create a magnetic field for audio transmission, then audio signals can be transmitted through water, but the system complexity increases
Solution Approach 1:
The wire loop serves multiple functions: it acts as both the transmission medium for the magnetic field and the structural element that can be integrated into existing pool infrastructure. The induction loop amplifier not only converts audio signals to magnetic fields but also provides signal amplification and impedance matching, consolidating multiple functions into a single system component.
3Ease of manufacture
If lane lines are used to integrate the wire loop, then installation is simplified and cost is reduced, but the audio transmission is limited to specific pool areas
Solution Approach 1:
The patent divides the pool into multiple zones, each with its own induction loop system integrated into lane lines. This segmentation allows for targeted audio transmission to specific lanes or areas, enabling different audio content for different zones while simplifying installation by using existing lane line structures. The modular approach allows scalable deployment from single-lane to multi-lane configurations.
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
Enables reliable wireless audio signal transmission to swimmers by overcoming water absorption issues, allowing uninterrupted audio playback even when the receiver is moving.
Implementation Method 1
an induction loop amplifier configured to receive the electronic audio signal and convert the received electronic audio signal into a current. The wire loop producing a magnetic field from the current to generate an audio frequency induction loop to transmit the electronic audio signal to the receiver
Data Source
AI summary
A system for providing magnetic field audio signals to a receiver in an aquatic environment. The system includes an audio source configured to provide an electronic audio signal, and an induction loop amplifier configured to receive the electronic audio signal and convert the received electronic audio signal into a current. The system further includes a wire loop connected with the induction loop amplifier, the wire loop bounding at least part of the aquatic environment and around the receiver in the aquatic environment, the wire loop producing a magnetic field from the current to generate an audio frequency induction loop to transmit the electronic audio signal to the receiver in the aquatic environment.