Patent ID: 11953481
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A gas sensing device for sensing a target gas, the gas sensing device comprising:
a sensing unit for sensing the target gas, the sensing unit being configured for providing a measurement signal based on a concentration of the target gas in an environment of the gas sensing device;
a signal calibration unit, configured for determining a calibrated measurement value based on the measurement signal and based on a calibration model,
wherein the calibration model is based on calibration data of a plurality of test sensor units having a same type as the sensing unit, and
wherein the signal calibration unit is further configured for:
in response to determining a malfunctioning of the gas sensing device, switching the calibration model to a second calibration model for the sensing unit;
detecting whether an exposure of the sensing unit to the target gas exceeds a first threshold;
if the exposure of the sensing unit to the target gas exceeds the first threshold, determining a first baseline value of the sensing unit; and
using the first baseline value as an input for the calibration model to determine the calibrated measurement value.