Thermal state on-site detection method for large high-temperature forging

The invention relates to a thermal state on-site detection method for a large high-temperature forging, which can be used for effectively solving the problems that the measuring method for high-temperature forging measurement is outdated, the measuring accuracy is low and materials are seriously wasted in the prior art. The method comprises the following steps: carrying out mixed scanning measurement based on a laser scanning instrument and structured light digital photography to acquire three-dimensional point cloud data of the surface of the high-temperature forging, then fusing the point cloud data, removing non-forging surface points and measurement gross error points by utilizing a man-machine interactive filtering algorithm, carrying out curved quick model reconstruction analysis onthe acquired point cloud data of the forging, solving the geometric parameters of the forging model based on geometric operations, and outputting. The method has the advantages of simplicity, high speed, high reliability, material saving and low cost, is effectively used for the on-site detection on the thermal state of the large high-temperature forging, ensures that the problem of non-accurate thermal state on-site detection of the high-temperature forging can be solved, and is an innovation on the thermal state on-site detection method for the large high-temperature forging.