Temperature indicating paint spectrum automatic interpretation method and device

The invention relates to the field of temperature measurement of temperature indicating paint, in particular to a method for interpreting the temperature of the temperature indicating paint, which comprises the following steps of: acquiring diffuse reflection spectral data of a temperature indicating paint sample plate; establishing a temperature-indicating paint temperature section identification model and a temperature-indicating paint interpretation model in each temperature section by using the statistical characteristics of the extracted spectral data and a machine learning algorithm; when a to-be-detected piece is collected, diffuse reflection spectral data of the temperature indicating paint on the to-be-detected piece is collected, statistical characteristics of the spectral data of the temperature indicating paint on the to-be-detected piece are extracted according to the same spectral data preprocessing and characteristic extraction method as the temperature indicating paint sample plate, and the te