Device control system
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Solution Overview
Problem
Existing device control systems are inadequate for analyzing operation sounds of air conditioners and detecting abnormalities, as microphones are specialized for human voice detection and lack appropriate abnormality processing based on speech content.
Innovation Solution
A management system with sound input and analysis units that separate operation sound and command detection, using preprocessing and analysis methods tailored to the air conditioner's operation sounds for accurate abnormality detection, and providing feedback to users and service centers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If general noise level measurement is used, then simple noise evaluation is improved, but detailed abnormality detection deteriorates
Solution Approach 1:
The patent implements a dynamic processing system that automatically switches between different analysis modes based on the input sound type. For operation sounds, it performs detailed frequency analysis for abnormality detection, while for other sounds it performs simpler noise level measurement. This dynamic adaptation maintains ease of operation while enabling detailed abnormality detection when needed.
Data Source
AI summary
A management system (1090) includes an air conditioner (1062), a sound input unit (1064), an operation sound analyzing unit (1016), a first preprocessing unit (1011), a command extracting unit (1014), and a control unit (1017). The sound input unit (1064) is provided in a room where the air conditioner is provided and obtains sound data (SD). The operation sound analyzing unit (1016) analyzes the sound data by a predetermined analysis method so as to obtain a determination result (RE) regarding whether an abnormality exists in the air conditioner or details of the abnormality. The first preprocessing unit (1011) performs first preprocessing on the sound data. The command extracting unit (1014) extracts a command (CM) of a user from the sound data that has been subjected to the first preprocessing. The control unit (1017) controls the air conditioner on the basis of the command.