Patent · US Expired

Machine fault information detection and reporting

US7142990B2 · kind B2 · utility

217Cited by
77References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 2003
Grant dateNov 28, 2006
Priority date—
Expiry dateJul 24, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B23/0262
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

Sensors detect machine parameters such as vibration, turning speed, and temperature, and a local processor performs logic operations based on the parameters and inference rules to produce fault information that is reported to a system processor, which selectively uses the fault information to control the plant machines. The inference rules include rules for determining faults as to balance, alignment, bearing condition, electrical condition, and cavitation. The inference rules are contained in rules code that is separate from the analysis code that performs the logical operations. Thus, the inference rules may be easily changed without changing other code, such as the analysis code.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.