国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

The PHM is one of the key technologies of condition maintenance, and is also an important way to improve the automatic logistics. The false alarm problem is one of the key problems in practical applications. The unreliability of test point is the key cause of PHM false alarm. In order to solve the problem, the uncertainty theory was introduced during the research of test uncertainty degree. And the optimal uncertain test selection model was built. Under the expected rule and optical rule, the optimal uncertain test selection model was transformed to the certainty optimal model with expert’s belief degree. At last, an example was given to illustrate the molding and solving process.