High-frequency welded pipe temperature detection method

The invention discloses a method for measuring the temperature of a high-frequency welded pipe, which comprises the following steps of: firstly, establishing a temperature measurement model by adopting Icepak temperature simulation, simulating a temperature field, arranging a metal shell with the thickness of 10mm on the simulation model, arranging eight temperature monitoring points in the metal shell, and arranging three temperature monitoring points at an inlet, an outlet and the center of an oil pipe, after heat dissipation is stable, data of eight temperature detection points are collected and put into a neural network for training, and an optimal model is stored after multiple times of training. During on-site actual measurement, the metal shell is provided with a piece of rectangular glass, an image of the high-frequency welded pipe during heating can be acquired by using a machine vision technology, and the real-time temperature of the high-frequency welded pipe can be accurately obtained by combining