Reliability evaluation of electrical products based on Markoff and rough sets

The running state of electrical products is related to many attributes, but the more parameters, the more inconvenient the monitoring and statistics will be, and not all properties are closely related to the running state. Rough set can be used to reduce the attribute value, and the kernel of the simplest attribute can be obtained. At the same time, Markoff can be used to predict the value of state parameters,the next running state can be obtained,For the timely detection of failures, maintenance and replacement and to avoid causing significant losses is of great significance.