Gas detector calibration system

Through the gas detector calibration system, the measurement module and the feature module are combined to generate feature vectors, the attention gating network is used for linear transformation, and a two-point linear calibration model is constructed. This solves the problems of linear imbalance and environmental factors in traditional calibration, and achieves high-precision gas detector calibration.

CN120609981AActive Publication Date: 2025-09-09CHINESE PEOPLES LIBERATION ARMY NAVAL SPECIALTY MEDICAL CENT
4 Cites 0 Cited by

Patent Information

Application Number
CN202511100292.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2025-09-09
Estimated Expiration
2045-08-07

AI Technical Summary

Technical Problem

Traditional gas detector calibration methods ignore the coordination between zero point and full-scale calibration, resulting in an imbalance in the linear relationship. It is also difficult to effectively deal with the nonlinear effects of environmental factors such as temperature, humidity and air pressure, which limits the calibration accuracy.

Method used

A gas detector calibration system is adopted, including a measurement module, a feature module and a calibration module. By measuring the sub-zero and full-scale gas concentrations and environmental parameters, principal component analysis and gradient boosting tree are combined to generate feature vectors, and linear transformation is performed using the attention gating network to construct a two-point linear calibration model.

Benefits of technology

High-precision linear calibration of gas detectors is achieved under standard conditions, eliminating the influence of environmental factors, maintaining the linear relationship of calibration, and improving calibration accuracy.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a gas detector calibration system, which relates to the field of gas detection and comprises a measurement module, a characteristic module, a conversion module and a calibration module, the measuring module is used for measuring the concentrations of two gases at the zero point and the full range and the temperature, humidity and air pressure of the environment for multiple times and correcting to generate two correction sequences; the feature module extracts two main feature vectors from environment coupling information in the two correction sequences and the mean value and variance of two concentrations in a window through principal component analysis, establishes mapping of the main feature vectors and the concentration sequences by adopting a gradient boosting tree, and generates two key feature vectors based on feature splitting gain screening; the conversion module determines a linear conversion model based on the two key characteristic vectors through an attention gating network so as to convert the average value of the concentrations in the two correction sequences into two standard concentrations; and the calibration module constructs a two-point linear calibration model according to the two standard concentrations and performs calibration, so that high-precision calibration for maintaining a linear relation is realized.
Need to check novelty before this filing date? Find Prior Art