The invention relates to the field of gas sensor measurement, in particular to a gas sensor overlapped block temperature and
humidity intelligent self-calibration method, which comprises the following steps: S1, measuring the resistance of a gas sensor under different temperature,
humidity and concentration conditions; s2, acquiring a change rule of response resistance and each variable; s3, roughing abnormal points; s4, overlapping and blocking the data according to the change rule of the data along with temperature,
humidity and concentration; s5, performing multiple
linear regression on each data block; s6, repeatedly and finely selecting abnormal points and iteratively correcting the abnormal points; s7, performing multiple
linear regression on the corrected data block; s8, establishing a temperature and humidity compensation expression of the concentration through
inverse operation; s9, importing a plurality of compensation expressions of the same kind of sensors into the
microcontroller, obtaining a plurality of predicted values, and taking the average value of all the predicted values as the
calibration result of the gas sensor. According to the method, the temperature and humidity real-time intelligent self-calibration of the gas sensor is realized.