Automated Public Address System Commissioning via Audio Feedback
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Solution Overview
Problem
Commissioning public address systems in large facilities is laborious, time-consuming, and costly, requiring multiple technicians to test and adjust audio settings across multiple speakers, which is impractical for small and medium-sized facilities.
Innovation Solution
A computing device with a processor and memory that communicates audio files to a public address system, records audio output, compares audio parameters, and automatically adjusts settings to ensure compliance with target values, reducing the need for multiple technicians and streamlining the commissioning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual commissioning with multiple technicians is used, then audio settings can be tested and adjusted across speakers, but the process becomes laborious, time-consuming, and costly
Solution Approach 1:
The public address system performs self-commissioning by automatically playing test audio files through its own speakers and recording the output with its own microphones, eliminating the need for external technicians to manually test and adjust audio settings across multiple locations
Solution Approach 2:
The system records audio output from its speakers through microphones and automatically analyzes the recorded audio parameters, using this feedback to determine whether commissioning criteria are met and to guide any necessary adjustments
2Reliability
If multiple technicians are deployed for commissioning, then comprehensive audio testing can be performed, but labor costs increase significantly
Solution Approach 1:
The public address system's existing speakers and microphones serve dual purposes: normal operation and commissioning testing, allowing the system to perform comprehensive audio parameter analysis without requiring additional specialized equipment or personnel
Solution Approach 2:
The system automatically processes commissioning by playing test files, recording outputs, analyzing parameters, and determining compliance without human intervention, reducing both labor costs and process complexity
3Productivity
If automated commissioning is implemented, then time and labor costs are reduced, but the system must perform self-testing and analysis functions
Solution Approach 1:
The public address system utilizes its existing speakers and microphones for both operational and commissioning functions, avoiding the need for separate testing equipment and minimizing additional system complexity while achieving automated commissioning
Data Source
AI summary
Devices, systems, and methods for public address system commissioning are described herein. In some examples, one or more embodiments include a computing device comprising a memory and a processor to execute instructions stored in the memory to communicate an audio file to a controller of a public address system of a facility, wherein the audio file is configured to be played by a speaker of the public address system, receive a recording of the played audio file, compare values of a plurality of audio parameters associated with the recording to target values of the plurality of audio parameters, and modify an audio setting on the controller of the public address system based on the comparison.