Development of VSI Synthetic Control Chart

Song, Suh-Ill; Park, Hyun-Kyu

Journal of Korean Society for Quality Management > Volume 33(1); 2005 > Article

Journal of Korean Society for Quality Management 2005;33(1): 1-.

가변샘플링기법을 이용한 합성관리도의 개발

송서일, 박현규

동아대학교 산업경영공학과

Development of VSI Synthetic Control Chart

Suh-Ill Song, Hyun-Kyu Park

Dept. of Industrial & Management System Engineering, Dong A University

ABSTRACT

This paper develops a new VSI $={X}-CRL$ synthetic control chart that considers convenience of use in the field, and perception of change of process applying VSI techniques to synthetic control chart, simultaneously. We found the optimal sampling interval and various control limit factor of the suggested chart using markov chain. Comparison and analysis is carried out between synthetic VSI $={X}-CRL$ chart and other chart in the statistical aspect; $={X}$ control chart, VSI $={X}$ chart, another synthetic chart. In case that the process follows normal distribution, the proposed VSI $={X}-CRL$ synthetic control chart in detecting process mean shift showed the best performance in aspect of statistical performance, regardless of control limit L of CRL/S control chart.

Key Words: VSI control chart;CRL control chart;Synthetic control chart;