Temperature data monitoring method in continuous distillation process of DOTP crude ester

The invention relates to the technical field of temperature data monitoring, in particular to a temperature data monitoring method for a DOTP crude ester continuous distillation process. The method comprises the following steps: acquiring time sequence state data; determining the data fluctuation degree according to the difference of the time sequence state data at the adjacent sampling moments; segmenting the data to obtain a state data segment, and analyzing the temperature fluctuation degree to determine the data instability degree of a reference segment; according to the difference between the temperature fluctuation degree in the section and the pressure fluctuation degree and the difference between the temperature fluctuation degree in the section and the gas flow fluctuation degree and the time sequence state data, the data change consistency degree is determined; in combination with the data instability degree and the data change consistency degree, screening to obtain an optimal segment number; and p