Patent ID: 7350106
Filing Date: 2008-03-25
Classification: G06F

Abstract:
1. A device for aiding the locating of a failure of a complex system comprising a plurality of interlinked elements, which device comprises: at least one database storing diagnostic aid rules; a detector that detects a functional failure, if any, of said complex system and provides, upon detection of said failure, information relating to the origin of said failure; a central unit that determines, for any said failure detected, at least on the basis of said diagnostic aid rules stored in said database and of the information provided by said detector, the element or elements of the complex system which are at the origin of said failure, as well as for each element thus determined the corresponding probability that it is at the origin of said failure; a presentation section that presents to an operator, for any said failure, the element or elements determined as being at the origin of the failure together with on each occasion the corresponding probability; and an updating section that updates the database under the control of an operator, wherein: said central unit determines, for an element at the origin of said failure, the corresponding probability with the aid of the ratio of the sum of the failure rates of all the failures covered by a test in said element to the sum of the failure rates of all the failures covered by this test in the entire complex system.