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:
Feb. 03, 2015
Filed:
May. 11, 2009
Jing Liu, Troy, MI (US);
Chengyin Yuan, Rochester Hills, MI (US);
Fangming Gu, Rochester Hills, MI (US);
Stephan R. Biller, Birmingham, MI (US);
Demet C. Wood, Farmington Hills, MI (US);
Daniel B. Aufderheide, Rochester, MI (US);
Jing Liu, Troy, MI (US);
Chengyin Yuan, Rochester Hills, MI (US);
Fangming Gu, Rochester Hills, MI (US);
Stephan R. Biller, Birmingham, MI (US);
Demet C. Wood, Farmington Hills, MI (US);
Daniel B. Aufderheide, Rochester, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for testing the safety automation logic used in a manufacturing cell includes recording control signals of a safety-related component such as an E-Stop, light curtain, gate lock, or a safety mat using a host machine, and then disconnecting the component from the host machine. The recorded test signals are transmitted to an automation controller in accordance with a test scenario from a test scenario generator module (TSGM) to emulate operation of the component. The automation logic may be certified using the playback of the recorded test signals. A system for testing the safety automation logic includes the controller, host machine, and TSGM. The host machine records the control signals and plays back the test signals on the controller to emulate operation of the component. The automation control logic may be certified using the test signals, e.g., by comparing these to the test specification or standard.