Remote Noise Monitoring Calibration Without System Disassembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing noise monitoring systems face challenges with traditional off-line laboratory detection methods that require disassembly and transportation, which are laborious, costly, and disrupt normal operations, while on-line detection methods are inconvenient to transport and prone to human intervention errors.
Innovation Solution
A device for remote online detection of environmental noise monitoring systems, incorporating a control bus, meteorological and video monitoring modules, signal analyzing devices, communication ports, and a remote management platform, enabling real-time data acquisition and calibration without disassembly, using digital signal processing and encryption for secure data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional periodic off-line laboratory detection method is used, then detection accuracy can be ensured, but the system must be disassembled and transported which causes operational disruption and high cost
Solution Approach 1:
The patent introduces a coupler as an intermediary device that connects the standard microphone to the noise monitoring system under test. This coupler serves as a mediator that allows acoustic signal transmission without requiring physical disassembly of the monitored system, thus maintaining operational continuity while enabling accurate detection through the standard microphone
Solution Approach 2:
The patent replaces the mechanical disassembly and transportation process with an in-situ detection approach. Instead of physically moving the system to a laboratory, the detection is performed at the installation location using electronic and acoustic fields, eliminating the need for mechanical handling and transportation while maintaining detection accuracy
2Ease of operation
If on-line detection method using anechoic chamber free-field device is used, then detection can be performed without disassembly, but the device is large in volume and inconvenient to transport
Solution Approach 1:
The patent segments the detection system into compact modular components: a standard microphone, a coupler, and a detection device. This segmentation allows each component to be small and portable, eliminating the need for a large anechoic chamber while maintaining the capability for on-line detection without disassembly
Solution Approach 2:
The patent uses a standard microphone as a reference copy to compare against the noise monitoring system under test. This copying approach allows detection to be performed with compact equipment rather than requiring a full-scale anechoic chamber, making the detection device portable and easy to deploy
3Adaptability or versatility
If on-line detection with anechoic chamber device is used, then field detection is enabled, but the free-field performance needs regular calibration which reduces detection efficiency
Solution Approach 1:
The patent enables the detection system to perform self-calibration using the coupler and standard microphone as reference standards. The system can automatically compare the noise monitoring system under test against the known standards and adjust accordingly, eliminating the need for external calibration services and manual intervention, thus maintaining field detection capability while improving detection efficiency
4Measurement precision
If traditional detection method is used, then comprehensive performance detection can be performed, but disassembly and assembly are time-consuming and laborious
Solution Approach 1:
The patent performs preliminary setup by connecting the standard microphone to the coupler before the actual detection process. This preliminary configuration establishes the reference standard in advance, allowing the detection to proceed without time-consuming disassembly and assembly operations, while still enabling comprehensive performance detection through the established reference system
Data Source
AI summary
A device for remote online detection of an environmental noise monitoring system, comprising a control bus, and a meteorological monitoring module, a video monitoring module, a signal analyzing device, a platform communication port, an instrument communication port, a sinusoidal signal generation module, a tone burst generation module, an attenuator module and a power amplifier module respectively connected with the control bus; wherein the sinusoidal signal generation module and the tone burst generation module are respectively connected with a signal input end of the attenuator module; an output end of the attenuator module is connected with an input end of the power amplifier module; an output end of the power amplifier module is connected with a preamplifier adapter and an active comparison coupler, respectively.