Maintenance decision-making method and system for k/n load balancing system

The invention discloses a maintenance decision-making method for a k/n load balancing system, and the method comprises the steps: calculating a distribution function of part fault time based on a loadaverage distribution rule for describing the correlation of parts and a built multi-stage random process model for describing the degradation process of the parts of the system; defining all possibleconditions in one detection period according to the system state and the system reliability during offline detection, and calculating the probability of each possible condition according to the distribution function of the component fault time; calculating the system total operation cost and the system life cycle length in a system life cycle; and calculating the operation cost of the system in unit time to obtain an optimal detection time sequence and an optimal reliability threshold of the system. According to the invention, a new maintenance decision scheme is provided, so that the systemequipment is ensured to ope