The application discloses a bearing residual life
interval prediction method and
system, and the method comprises the following steps: collecting
signal data of a bearing at time t, and predicting a life prediction value of the bearing at time t based on the
signal data; predicting an upper limit of a residual life interval of the bearing at time t based on bearing life cycle data stored in a historical
knowledge base and the life prediction value of the bearing at time t; predicting a
lower limit of the residual life interval of the bearing at time t based on the life prediction value of the bearing at time t and
complete life cycle data or error data based on
signal data at time t and signal data at historical time; and determining the residual life interval of the bearing at time t based on the upper limit of the residual life interval of the bearing at time t and the
lower limit of the residual life interval of the bearing at time t.