CSP-T方案的中止概率及中止规则[R]  

Stopping Probabilities of CSP T and Stopping Rule

作　　者：宋红敏[1] 

机构地区：[1]北京联合大学应用文理学院

出　　处：《北京联合大学学报》1999年第3期53-59,共7页Journal of Beijing Union University

摘　　要：连续抽样方案适用于连续提交的在制品进行抽样检查。人们陆续提出了四类连续抽样方案，即ＣＳＰ１，ＣＳＰ２，ＣＳＰＴ，和ＣＳＰＶ。其中ＣＳＰＴ方案为加严多水平连续抽样方案。为了监测生产过程质量的稳定性，避免浪费原材料和劳动力，Ｍｕｒｐｈｙ（１９５９）提出了中止规则，可以依据检查数据决定是否中止生产过程，其中中止规则［Ｓ］已经被国家标准ＧＢ８０５２－８７采用。该标准仅提供了ＣＳＰＴ的操作程序，连续合格品数ｉ，极限质量ＬＱ，与ＡＯＱＬ相对应的ＰＬ值，及中止规则［Ｓ］的中止参数ｓ，但未给出在ＡＱＬ、ＬＱ处的中止概率。计算了多水平连续抽样方案ＣＳＰＴ采用的中止规则［Ｓ］在ＡＱＬ、ＬＱ处的中止概率Ｐ１，Ｐ２，并在ＣＳＰＴ方案中引入一种更优的中止规则［Ｒ］。Continuous sampling is an inspection technique in which inspection is continuous during production and located as an element of a line producing a continuous flow of product. Considering the four classed of continuous sampling plans (CSP),including CSP 1,CSP 2,CSP T and CSP V. Tightened multi level continuous sampling plans CSP T apply to a steady stream of individual items. In continuous production changes in quality can occur suddenly and may require prompt action to avoid wasting material and labor. Such stopping rules have been extensively investigated by Murphy (1959). They are based on inspection data to stop the manufacturing process in order to correct the condition.Today,rule adopted wildly by GB 8052-87,CSP T in GB 8052-87 presents operation procedures and tables for inspection, the so called characteristic parametric P L , LQ,which P L is the process average at that AOQ function takes its maximum AOQL,which LQ is the special value 0 1. But there are not the stopping probabilities P , a measure of continuous sampling plans CSP T. P 1 and P 2 are calculated, which are the stopping probabilties at AQL and LQ respectively as stopping rule is employed. Meanwhile a new stopping rule of CSP T is described, which has more advantages in statistical characteristic on every respect than rule . [

关 键 词：连续抽样方案 中止规则 中止概率 CSP-T方案 

分 类 号：O212.2[理学—概率论与数理统计]