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. 08, 2003
Filed:
Jul. 25, 2000
Masahiko Shirota, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A redundant monitoring control system includes at least one monitored control apparatus forming a communication network, and a plurality of monitoring control apparatuses monitoring and controlling the monitored control apparatus. The monitored control apparatus switches a monitoring and control of the monitored control apparatus by a monitoring control apparatus of a working system to a monitoring control apparatus of a backup system in response to a disconnection from the monitoring control apparatus of the working system which is detected when the monitoring control apparatus of the working system fails. The monitoring control apparatus of the backup system recognizes a control operation carried out by the monitoring control apparatus of the working system until the switching, and carries out a remainder of the recognized control operation with respect to the monitored control apparatus.