Working condition identification method and device of main bearing and medium

The invention discloses a working condition identification method and device for a main bearing and a medium, and is suitable for the technical field of main bearings of shield tunneling machines. According to the method, influence factors of working parameters are judged into absolute judgment standard parameters and relative judgment standard parameters, and then a working condition mode recognition classifier is constructed according to an expert system, so that the problem of one-sided and inaccurate recognition caused by the fact that an existing working condition recognition method only changes through the working parameters is solved; and on the basis of a classification result obtained by the absolute judgment standard parameter through the working condition mode identification classifier, the abnormal working condition is further classified and identified through the relative judgment standard parameter through the working condition mode identification classifier to obtain a final classification resu