A New Method of Monitoring Process Disturbance Based on Integrated SPC/EPC
Special reason and common reason bring on the process disturbance. Statistical process control (SPC) is commonly used to monitor the process disturbance which arises from assignable reason. Engineering process control (EPC) compensates the deviation of output for common reason based on the feedback adjustment principle. Therefore, integrated SPC/EPC approach has better performance than that merely using SPC or EPC. However, in practice, it is very hard to search the appropriate method to apply for integration of SPC/EPC. The main reason is that EPCs compensation has depressed probability which assignable reason is monitored by control chart. In this paper, a joint-monitoring method is designed to account for the above problems through detecting process output as well as monitoring process input. An example is given to prove that joint-monitoring can detect the process disturbance more quickly and more accurately.
SPC EPC Process disturbance Integrated SPC/EPC
Wang Xiuhong Li Quanqing
School of Management Science and Engineering,Zhengzhou Management Institute of Aviation Industry,Zhengzhou,P.R.China,450015
国际会议
郑州
英文
2008-09-20（万方平台首次上网日期，不代表论文的发表时间）