Multi-Detector Gas Sensing for Simultaneous Multi-Gas Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas detection devices struggle to simultaneously and reliably detect multiple target gases with high accuracy, often requiring multiple detectors and complex mode switching, which can lead to delayed response times and increased maintenance needs.
Innovation Solution
A gas detection device with a detection arrangement of M measuring detectors and a signal-processing determiner, trained using a machine learning method, capable of simultaneously detecting N target gases by analyzing the unique signal patterns generated by each detector, allowing for real-time concentration determination without mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple detectors are used to detect multiple target gases, then the detection capability is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a single gas detection device that can detect multiple different target gases simultaneously using multiple detectors with different sensitivities. Each detector responds to different gases with varying sensitivity levels, allowing the system to identify and differentiate between multiple gas types without requiring separate dedicated devices for each gas type.
Solution Approach 2:
The patent applies segmentation by dividing the detection task among multiple detectors, each with different sensitivity characteristics. The evaluation unit segments the analysis by assigning different weights to detector signals based on their sensitivity to specific gases, allowing the system to process complex multi-gas compositions by breaking down the overall detection problem into individual detector responses.
2Adaptability or versatility
If mode switching is implemented to detect different gases, then the versatility is improved, but the response time increases
Solution Approach 1:
The patent applies continuity of useful action by enabling simultaneous operation of multiple detectors to detect different target gases at the same time. The system continuously monitors all gas types concurrently through parallel detector operation and simultaneous signal evaluation, eliminating the need for sequential mode switching and maintaining continuous detection of all target gases without interruption or delay.
3Measurement precision
If multiple detectors with different sensitivities are used, then the measurement precision is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent applies feedback by implementing an evaluation unit that receives signals from multiple detectors and processes them using sensitivity information. The system uses feedback mechanisms where the evaluation unit adjusts and combines detector signals based on known sensitivity characteristics, cross-sensitivity data, and calibration information to accurately determine gas compositions, effectively compensating for the complexity of multiple detector responses through systematic signal processing.
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 device provides rapid, reliable detection of multiple gases with reduced maintenance requirements, minimizing cross-sensitivity and environmental interference, and offering simultaneous output of gas concentrations and alarms.
Implementation Method 1
Each target gas to be detected attenuates electromagnetic radiation in a respective target gas frequency band
Implementation Method 2
A radiation source emits electromagnetic radiation, wherein the electromagnetic radiation penetrates at least once the measuring chamber
Data Source
AI summary
The present disclosure relates to a gas detection device and a gas detection method which are capable of detecting N target gases in a gas sample. The gas sample is fed into a measuring chamber. M detectors each generate a signal which correlates to the concentration of at least one of the N target gases to be detected in the gas sample. A determiner comprises M inputs and N outputs. A signal, which depends on the signal of the associated measuring detector, is applied at each input of the determiner. Each output supplies information on the concentrations of the associated target gas. The determiner is trained by applying a learning method to a sample with a plurality of sampling elements. Each sample element contains M values for M signals from measuring detectors and N values of N target gas concentrations.