数控系统软件故障定位技术  

Software fault location of CNC system

作　　者：袁修华[1,2] 王义强[1] 胡艳娟[2] 赵宏伟[2] 

机构地区：[1]浙江大学宁波理工学院,浙江宁波315100 [2]吉林大学机械科学与工程学院,长春130022

出　　处：《重庆大学学报（自然科学版）》2012年第1期24-28,共5页Journal of Chongqing University

基　　金：国家科技重大专项(2009ZX04014-013-01)

摘　　要：为了快速准确地对数控系统中的软件故障实施定位,提高数控系统可靠性,提出将改进的相似路径算法和模糊判断技术应用到数控系统软件故障定位领域。根据监控器记录的信息,生成失效路径;根据改进的相似路径算法,由程序控制流图和失效路径生成相似路径集;通过程序切片算法,将可疑代码的范围减少;同时采用模糊数学来判断可疑代码,进而对控制流类故障进行定位。为了验证该方法的可行性,事先在NURBS插补模块中植入故障,并对该模块进行故障定位实验。实验结果表明,该方法是一种行之有效的数控系统软件故障定位方法。In order to quickly and accurately locate the fault of CNC software and improve the reliability of CNC system,an improved algorithm of similar path and fuzzy judgment is introduced into the fault location of CNC software. Firstly, according to the execution information recorded by monitor, the failed path is generated; secondly, the similar path set can be obtained from control flow graph and failed path; then the search scope of suspicious codes can be reduced by program slicing; finally, the fuzzy mathematics is performed to judge suspicious codes. In addition,the experiment on the NURBS interpolation injected bugs is carried out. The experiment results indicate that the proposed method is effective in locating the fault of the CNC software.

关 键 词：数控系统软件 故障定位 失效路径 相似路径 模糊判断 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]