Intelligent detection method and system for defects of chain cotter pin

The invention discloses an intelligent detection method and system for defects of a chain cotter pin. The method comprises the following steps: acquiring a to-be-detected image of a cotter pin type chain joint; judging whether the chain joint image contains a cotter pin or not; if not, judging that the defect of missing the chain cotter pin exists in the to-be-detected image; if yes, based on the area image where the cotter is located, cotter key point detection is executed, and multiple key point positions are obtained; and calculating the tail opening angle of the cotter pin according to the plurality of key point positions, and judging whether the cotter pin is normal or not. The method can quickly and accurately judge the state of the cotter pin. 本发明公开了一种链条开口销缺陷智能检测方法及系统，所述方法包括以下步骤：获取开口销型链条接头待检测图像；判断所述链条接头图像中是否包含开口销：若不包含，判定所述待检测图像中存在链条开口销缺失的缺陷；若包含，基于开口销所在区域图像，执行开口销关键点检测，得到多个关键点位置；根据所述多个关键点位置，计算开口销尾部开口角度，判断开口销是否正常。本发明能够快速、准确地判定开口销状态。