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:
Dec. 03, 2013
Filed:
May. 31, 2012
Ghulam Mustafa, Edmonton, CA;
Jiadong Wang, Edmonton, CA;
Tongwen Chen, Edmonton, CA;
Danlei Chu, North Vancouver, CA;
Johan U. Backstrom, North Vancouver, CA;
Ghulam Mustafa, Edmonton, CA;
Jiadong Wang, Edmonton, CA;
Tongwen Chen, Edmonton, CA;
Danlei Chu, North Vancouver, CA;
Johan U. Backstrom, North Vancouver, CA;
Honeywell ASCa Inc., Mississauga, Ontario, CA;
Abstract
A method includes identifying an initial solution to a quadratic programming (QP) problem associated with a process. The method also includes performing an iterative procedure having one or more iterations. Each iteration includes determining whether any constraint associated with the process is violated in the solution. Each iteration also includes selecting a violated constraint, determining a step direction and a step length associated with the selected violated constraint, and updating the solution based on the step direction and the step length. Determining the step direction and the step length includes using a Schur complement based on an active set of constraints associated with the solution. The Schur complement is nonsingular during all iterations of the iterative procedure except when the active set is empty.