رویکردهای تشخیص خطا مربوط به کیفیت با استفاده از پیش پردازش اطلاعات *

This work focus on the issue of quality-related fault detection. A new idea of data-preprocessing is proposed with two specific instances are designed based on orthogonal signal correction (OSC) and orthogonal projections to latent structures (OPLS). Different from existing results, the new idea allows directly designing test statistics in the data subspaces obtained from data preprocessing without building any linear regression model like partial least squares (PLS). Benefit from such a direct feature, the designed new methods are more simple in engineering implementation and their performances are also more stable than conventional approaches. Simulation results on a widely used literature example and an industrial example demonstrate the effectiveness of the proposed new methods.