Smart Gas IoT System for Noise-Resilient Ultrasonic Metering
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Solution Overview
Problem
Gas ultrasonic meters in the gas pipeline are susceptible to noise interference, leading to low measurement accuracy and instability in metering results, necessitating an improved method to reduce external interference and enhance the reliability of gas metering.
Innovation Solution
A smart gas IoT system that determines a gas metering strategy by obtaining time-dividing point correlation data, assessing candidate time-dividing points, transmitting sound waves of different frequencies, receiving echo signals, and adjusting the metering strategy based on detected noise interference to improve measurement accuracy and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gas ultrasonic meter is used for flow measurement, then convenient metering is provided, but the measurement accuracy and stability deteriorate due to noise interference
Solution Approach 1:
The patent implements dynamic adjustment of metering strategies by continuously monitoring noise levels and adapting measurement parameters in real-time. The system transitions from static measurement to dynamic measurement that responds to changing environmental conditions, thereby maintaining measurement accuracy despite noise interference while preserving the convenience of ultrasonic metering.
Solution Approach 2:
The patent changes measurement parameters such as frequency selection, time-dividing points, and measurement timing based on detected noise conditions. By dynamically adjusting these parameters, the system optimizes measurement accuracy under different noise environments while maintaining the operational convenience of the ultrasonic meter.
2Ease of operation
If gas ultrasonic meter is used for flow measurement, then convenient metering is provided, but the stability of metering results deteriorates due to noise interference
Solution Approach 1:
The system dynamically adjusts measurement strategies based on real-time noise monitoring, transitioning from stable but inaccurate measurement in noisy conditions to optimized measurement that maintains stability. The dynamic adaptation ensures consistent measurement quality regardless of environmental noise levels.
Solution Approach 2:
The patent implements feedback mechanisms where measurement results and noise levels are continuously monitored and used to adjust subsequent measurement strategies. This closed-loop control stabilizes metering results by compensating for noise-induced variations through adaptive parameter adjustment.
3Measurement precision
If noise interference is present in the environment, then external interference affects measurement, but the system can detect and adapt to improve measurement accuracy
Solution Approach 1:
The patent converts the harmful noise interference into a useful signal for detection and adaptation. By monitoring noise characteristics, the system identifies optimal measurement windows and parameters, transforming the previously harmful noise into information that improves measurement accuracy through adaptive strategy selection.
Solution Approach 2:
The system performs preliminary noise detection and assessment before conducting actual gas flow measurement. By预先 identifying noise conditions and selecting appropriate measurement strategies in advance, the system prevents noise interference from degrading measurement accuracy rather than attempting correction after the fact.
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
The system effectively reduces the impact of noise interference on gas metering, enhancing the reliability and effectiveness of gas flow measurement by adjusting the metering strategy in response to detected noise, thereby improving measurement accuracy and stability.
Implementation Method 1
A gas ultrasonic meter is a flow measurement instrument that provides a convenient metering
Implementation Method 2
transmitting at least two sound waves of different frequencies at the at least two time-dividing points and receiving at least two echo signals by the gas ultrasonic meter
Data Source
AI summary
A method and a smart gas Internet of Things (IoT) system for determining a gas metering strategy are provided. The method includes: determining, based on time-dividing point correlation data, at least one group of candidate time-dividing points; determining, based on an assessment mode, an assessment result of the at least one group of candidate time-dividing points; determining, based on the assessment result, the at least two time-dividing points, wherein the at least two time-dividing points form at least one group of time-dividing point groups; transmitting at least two sound waves of different frequencies at the at least two time-dividing points and receiving at least two echo signals; determining, based on the at least two echo signals, a gas flow difference; determining, based on the gas flow difference, whether a noise interference exists; and in response to a determination that the noise interference exists, adjusting the gas metering strategy.