The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Jul. 01, 2016
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Takahiro Iida, Tokyo, JP;
Masahiro Matsubara, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/36 (2006.01); G06F 8/65 (2018.01); G05B 9/02 (2006.01);
U.S. Cl.
CPC ...
G06F 11/3688 (2013.01); G05B 9/02 (2013.01); G06F 8/65 (2013.01);
Abstract
The purpose of the present invention is to provide a control device with which it is possible to verify the safety of a control system when an application is partially updated. Using a safety analysis unit which, accepting an architecture of control software and a fault mode per function block constituting the architecture as inputs, generates and evaluates a fault tree, the present invention determines whether or not there is a problem with the safety of the control software and thereby makes it possible to determine whether or not the control software is safe.