报警线控制图的原理在出生缺陷监测中的应用探讨

Control charts with warning lines and its application in birth defects monitoring

报警线控制图是出生缺陷监测中较常用的方法之一。本文首先介绍报警线控制图的基本原理,通过马尔科夫链途径导出了该法中一个很重要参数——平均链长(Average Run Length,ARL),并对遍历性进行了研究。本文还对报警线的计算进行了探讨。

Control charts with warning lines is one of the four techniques in birth defects monitoring. The authors introduced its principle, deduced the very important parameter --Average Run Length (ARL) by using markov chain approach. Its ergodic propertywas researched, and also discussed the computation of alarming lines and warning line.