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首页> 外文期刊>International Journal of Production Research >Exponential cumulative sums chart for detecting shifts in time-between-events
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Exponential cumulative sums chart for detecting shifts in time-between-events

机译:用于检测事件之间时间变化的指数累积总和图

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Time-between-events (TBE) charts use the time interval T between events to monitor process shifts (or failure rates ). This paper presents a two-sided TBE cumulative sums (CUSUM) chart called a weighted CUSUM(WCUSUM)chart for detecting either a deterioration (decrease in T) or an improvement (increase in T) in the condition of a process. A new kind of WCUSUM chart that has an additional charting power parameter w is proposed here. A WCUSUM chart's efficiency can be improved by using the parameter w, based on an estimated value of the mean shift. In addition, a methodology and optimal design are presented for minimising the average loss. Construction of the WCUSUM chart is illustrated by considering a random shift in (including both increasing and decreasing shifts) in the design.
机译:事件间隔时间(TBE)图表使用事件之间的时间间隔T来监视过程转移(或失败率)。本文介绍了一种称为加权CUSUM(WCUSUM)图表的双面TBE累积总和(CUSUM)图,用于检测过程条件下的变差(T减小)或改善(T增大)。这里提出了一种新型的WCUSUM图表,该图表具有附加的制图功率参数w。基于平均偏移的估计值,可以通过使用参数w来提高WCUSUM图表的效率。此外,提出了一种方法和最佳设计,可最大程度地减少平均损失。通过考虑设计中的随机偏移(包括增加和减少偏移)来说明WCUSUM图表的构造。

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