Maintenance planning assistance system and method for generating facility maintenance plan

Abstract

To assist planning a facility maintenance plan.SOLUTION: A maintenance planning assistance system holds device state information for managing a recommended maintenance timing for each facility device. The recommended maintenance timing refers to a point of time at which cost required for maintenance of a device is low and a failure rate of the device is low. The maintenance planning assistance system: generates a plurality of lists which is for each facility and which serves as a first optimization problem for which a device list of a facility on which maintenance is performed at a maintenance timing is retrieved, by using a constraint condition related to a probability of a failure occurrence in the facility, and an evaluation value calculated by using a facility maintenance cost loss that evaluates an economic loss due to device maintenance at a timing offset from the recommended maintenance timing; and generates a plurality of maintenance plans which is for a plurality of facilities and which serves as a second optimization problem for which a maintenance plan, which is a combination of maintenance date and time, resource allocation, and list, is retrieved, by using a second constraint condition related to the probability of a failure occurrence in the facility and resources required for the device maintenance, and a total evaluation value calculated by using the evaluation value.SELECTED DRAWING: Figure 1

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