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:
Nov. 24, 2020
Filed:
Nov. 23, 2018
Trane International Inc., Davidson, NC (US);
Daniel John Blair, Tyler, TX (US);
Carl L. Garrett, Tyler, TX (US);
Mark E. Groskreutz, Tyler, TX (US);
Jeffrey L. Stewart, Whitehouse, TX (US);
Karl J. Mutchnik, Tyler, TX (US);
William David Daugherty, III, Gladewater, TX (US);
Mahfuz Imam, Tyler, TX (US);
Gang (Jacky) Chen, Tyler, TX (US);
Trane International Inc., Davidson, NC (US);
Abstract
A method of operating a diagnostic data collection device and a diagnostic data bus for an HVAC system are disclosed. In an embodiment, the diagnostic data collection device includes a diagnostic communication interface and a flexible interface module. The interface module measures electrical properties associated with an HVAC component. Electrical properties may include a sensor output and may include analog and digital signals. The diagnostic data collection device generates an exception message if the sensed property is out of specification. Evaluation rules are provided to detect various types of failures, including transient failures, steady state failures, and trending failures. The diagnostic data collection device self-calibrates by recording electrical properties during normal operation of the HVAC equipment. A plurality of diagnostic data collection devices may be coupled by a diagnostic data bug independent of the HVAC system's control bus, to ensure operational integrity of the diagnostic system.