Patent ID: 7457550

Claim:
An abnormality determining apparatus comprising: an information obtaining unit that obtains a plurality of various types of information relating to a detection subject; an information storage unit that stores therein a set information group formed of an aggregate of pieces of set information, which is a combination of the various types of information; a determining unit that determines presence of abnormality in the detection subject based on the set information group stored in the information storage unit and the various types of information obtained by the information obtaining unit; a timing obtaining unit that obtains a time point at which a predetermined period elapses since any one of start of use of the detection subject after factory shipment and repair of the detection subject; a controlling unit that provides a control to sequentially store, until the time point is reached, the various types of information obtained by the information obtaining unit in the information storage unit to construct the set information group, and once the time point has passed, causes the determining unit to determine the presence of the abnormality in the detection subject based on the set information group and the various types of information obtained by the information obtaining unit and an input unit to input a period value indicative of the predetermined period in the information storage unit, wherein the timing obtaining unit obtains the time point based on the period value stored in the information storage unit.