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:
Oct. 07, 2014
Filed:
Aug. 20, 2004
Esa Lahtinen, Tampere, FI;
Mika Karaila, Tampere, FI;
Esa Lahtinen, Tampere, FI;
Mika Karaila, Tampere, FI;
Metso Automation Oy, Helsinki, FI;
Abstract
The invention relates to a method and an apparatus for arranging redundancy in a process control system comprising at least one client device, at least one data source and at least one server device providing data transfer between the client device and the data source. The method comprises arranging, for the client device, at least two parallel logical connections for transferring substantially the same data between at least one data source and the client device. At the client device, property information on data units transferred via different logical connections is checked, the client device being provided with predetermined order criteria for the property information. At the client device, property information on parallel data units transferred via different logical connections is compared. Data units delivered via the logical connection having, according to the predetermined order criteria, the best property information are selected for the use of one or more applications processing the data units.