Networked Audio Output Monitoring for Sound Stoppage Prediction
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Solution Overview
Problem
Existing audio devices do not effectively predict or prevent the occurrence of sound stoppages, which is crucial for uninterrupted operation.
Innovation Solution
An audio system comprising an audio device and a server that allows for external monitoring and analysis of output values such as current and voltage to predict potential issues, utilizing network interfaces and signal processing to assess impedance and power supply states, enabling proactive problem detection and prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio device operates autonomously without external monitoring, then device complexity is reduced, but ability to predict and prevent sound stoppages deteriorates
Solution Approach 1:
The patent introduces an external server as an intermediary that performs the complex analysis and prediction functions. The audio device simply outputs data to the server, which then analyzes impedance characteristics and predicts potential sound stoppages. This mediator approach allows the audio device to maintain simplicity while achieving reliable prediction capabilities through the external server's processing power.
2Measurement precision
If audio device monitors internal states continuously, then prediction accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent extracts the complex computation and analysis functions from the audio device itself and relocates them to an external server. The audio device only performs basic data collection and transmission, while the server handles the intensive impedance analysis and prediction algorithms. This extraction allows precise measurement without the energy cost of continuous local processing.
3Reliability
If dedicated inspection signals are used to detect speaker abnormalities, then detection accuracy is improved, but interruption of actual audio output occurs
Solution Approach 1:
The patent makes the audio signal itself multi-functional by using it for both its primary purpose (audio output) and secondary purpose (impedance analysis). The same audio signal that drives the speaker also serves as the inspection signal for detecting abnormalities. This eliminates the need for separate dedicated inspection signals and allows continuous monitoring without interrupting audio playback.
Data Source
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AI summary
An audio device (1) includes a network interface (103), an amplifier (109) that amplifies an audio signal received through the network interface (103), and a sending portion (150) that obtains an output value of the amplifier (109) and sends the output value through the network interface (103).