The invention belongs to the technical field of fuel
assembly abnormity identification, and aims to solve the problem that an existing identification method has an abnormity missing detection risk and realize intelligent identification of abnormity of a fuel
assembly. The invention discloses an intelligent
analysis method and
system for appearance inspection of a fuel
assembly, and the method comprises the steps: triggering a side
direction detection state, a side character detection state and an upper end plug
abnormality detection state through the comparison of a coordinate of a
set point on a positioning frame of an upper tube seat with a set threshold value; when the predicted feature is a grillwork outer strip, grillwork outer strip identification defect identification is carried out, when the position of a fuel assembly upper tube base reaches a set position, a fuel assembly appearance
anomaly detection mark is triggered, and when the predicted feature is a lower tube base, a lower end plug
anomaly detection state is triggered; the
system comprises a fuel assembly feature positioning module, a side orientation detection module, a side character detection module, an upper end plug
anomaly detection module, a grillwork outer strip counting and detection module, a fuel assembly appearance anomaly positioning module and a lower end plug anomaly detection module.