为满足运动鞋制造业中个性化的需求, 建立了基于光切法进行三维形貌测量的鞋楦定制专家系统。提出了参数化的标准鞋楦模型数据库,采用最小二乘拟合逼近方法将鞋楦点云数据表示为NURBS曲线从而建立该数据库。提出了根据脚型特征端点对脚型分段的方法。以制鞋经验公式与国家标准为依据,在足印点轮廓区规定出初始分段,然后以产生式的表达规则建立分段鞋楦舒适度经验知识库。将标准鞋楦模型数据库、经验知识库结合推理机制,建立起运动鞋楦定制的专家系统概念,并利用该概念建立起针对运动鞋楦的专家系统,对特定脚型进行了运动鞋楦的定制,此类专家系统可推广至各类鞋楦。

To make customised sports shoes, a customized shoe last expert system is established based on the light sectioning method for 3D profile measurement. A least square fitting method is proposed to approximate the scanned cloud data, to establish the parameterized standard shoe last database in form of NURBS curves. A foot shape subsectioning method based on the shape feature points is used to establish the segmental empirical repository of shoe last conformability by using the generative formula. The expert system is therefore formed with the standard shoe last database and the segmental empirical repository. With the expert system, special shoe last is customizod, and the system can spread to other kinds of shoes.