FAULT FACTOR PRIORITY PRESENTATION DEVICE

WIPO Patent Application WO/2020/071054

A1

An objective of the present invention is to provide a fault factor priority presentation device with which priority for a fault factor which is included in a fault tree can be evaluated and presented, and the identification of the fault factor can be hastened. The present invention comprises: a causal relation database (112) which stores causal relations which represent chains of a plurality of elements for a product malfunction occurrence which include components and phenomena; an output device (106) which displays a fault tree which relates to the product malfunction occurrence, in which said fault tree branches out from a top event to basic events; and an inter-event causal probability computation unit (111) which computes the probability of a path from the top event to a basic event from the causal relations stored in the causal relation database (112). According to the present invention, the probability computed with the inter-event causal probability computation unit (111) is displayed in the fault tree.

JP2003208215	PROGRAMMABLE IRRIGATION CONTROLLER
JP2002069675	CORROSION PROTECTION CONTROLLING SYSTEM FOR PLANT
JPH07261831	MONITORING SUPPORT SYSTEM

SHIMIZU YUUKI (JP)

PCT/JP2019/035153

April 09, 2020

September 06, 2019

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HITACHI LTD (JP)

G05B23/02; G06Q10/00

JPH0728781A	1995-01-31
JPH06123642A	1994-05-06
JP2003067043A	2003-03-07
JP2008257700A	2008-10-23
JP2017111657A	2017-06-22
JP2002351538A	2002-12-06
JPH05151484A	1993-06-18

POLAIRE I.P.C. (JP)

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