Maintenance Assistance System

A maintenance assistance system that outputs an alarm for a notification of a maintenance request for a management target machine to a predetermined outputting apparatus, comprising:

• an operation data database in which operation data on the management target machine is accumulated;
• a required item database in which required items to be used for maintenance of the management target machine for each failure item and quantities of the required items are defined;
• a failure case database in which data in a past for a period after an abnormal decision is made on a basis of an evaluation value computed for evaluating soundness of the management target machine until a failure actually occurs is accumulated;
• a parts inventory database in which data on an inventory quantity for each of the required items is accumulated;
• and
• a processing apparatus that generates the alarm and outputs the generated alarm to the outputting apparatus,
• wherein
• the processing apparatus is configured to
• compute the evaluation value on a basis of the operation data database,
• decide, on a basis of the evaluation data, whether the management target machine is normal or abnormal,
• estimate required items to be used for maintenance and a quantity of the required items in regard to a failure item whose occurrence is predicted on a basis of the required item database, when an abnormality decision is made in regard to the management target machine,
• estimate, on a basis of the evaluation value on which the abnormality decision is based and the failure case database, a grace period before failure occurrence is predicted in regard to the failure item whose occurrence is predicted,
• estimate a procurement period required for procurement of the required items from the parts inventory database, and
• output the alarm for the notification of the maintenance request including information of the failure item whose occurrence is predicted and the required items to the outputting apparatus, when a value obtained by subtracting the procurement period from the grace period is equal to or lower than a set value set in advance.