Patent ID: 11971397
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A gas sensing system configured for:
using a gas sensor for generating signal samples corresponding to a concentration of one of a gas in a mixture of gases;
using a heat sources for heating the gas sensor according to a temperature profile;
using a preprocessing processor for receiving the signal samples from the gas sensor and for preprocessing the signal samples to generate first signal samples;
using a feature extraction processor for receiving the first signal samples and for extracting a feature value from the first signal samples based on characteristics of the first signal samples;
using a classification processor of a gas concentration processor for receiving a first group of the feature values, wherein the classification processor is configured for outputting a class decision value for the gas, wherein the class decision value indicates whether the gas is present in the mixture of gases, wherein the classification processor is configured for outputting a confidence value for the class decision value, wherein the classification processor comprises a first algorithm processor and a first trained model, wherein the feature values of the first group are fed to inputs of the first algorithm processor, and wherein the class decision value and the confidence value are provided on outputs of the first algorithm processor;
using a quantification processor of the gas concentration processor for receiving a second group of the feature values and for creating an estimation value for the gas, wherein the estimation value indicates a quantitative estimation of a concentration of the gas, wherein the quantification processor comprises a second algorithm processor and a second trained model, wherein the feature values of the second group are fed to inputs of the second algorithm processor, wherein the estimation values for the gas are provided on outputs of the second algorithm processor; and
using the gas concentration processor such that a measured concentration for the gas depends on the estimation value for the gas, on the class decision value for the gas, and on the confidence value for the gas.