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:
Sep. 05, 2017
Filed:
May. 27, 2009
Applicants:
Reynaldo Nuqui, Cary, NC (US);
Le Tang, Cary, NC (US);
Inventors:
Reynaldo Nuqui, Cary, NC (US);
Le Tang, Cary, NC (US);
Assignee:
ABB Research Ltd., Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 17/00 (2006.01); H04L 12/24 (2006.01); G06Q 50/06 (2012.01); H04L 29/06 (2006.01); H02H 3/00 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 41/0813 (2013.01); G06Q 50/06 (2013.01); H04L 41/0803 (2013.01); H04L 63/1441 (2013.01); H02H 3/006 (2013.01); H04L 67/12 (2013.01); Y04S 40/24 (2013.01);
Abstract
A method is disclosed for preventing malicious settings changes to IEDs in a power transmission and distribution network. Attempted changes to the protection settings of an IED is detected and transmitted to one or more neighboring IEDs. The neighboring IEDs check for consistency of the new settings and return conformance or nonconformance signals. If a nonconformance signal is received, the attempted setting change is not allowed.