本文着重研究了基于粗糙集理论的在线辨识磨削烧伤和砂轮磨钝的新方法 ,以测取信号、计算敏感特征量、构造辨识砂轮磨损和磨削烧伤的知识表示系统、连续属性离散、分类模式的合并、属性约简、知识提取的顺序对获取的信息进行处理 ,提取判别规则 ,进而通过判别规则来辨识磨削烧伤和砂轮磨钝 .经实验室试验 ,本方法的辨识结果与试验数据相符 In this paper, a new method of on-line identification of grinding burns and wheel blunt based on rough set theory is researched to detect signals, calculate sensitive features, construct a knowledge representation system to identify wheel wear and burn burns, continuous attribute dispersion, classification Model merging, attribute reduction and knowledge extraction order to process the obtained information to extract the discriminant rules, and then through the discriminant rules to identify grinding burns and wheel blunt.By the laboratory test, the identification results of the method and the experimental data Match