Patent · US Active

Methods for forewarning of critical condition changes in monitoring civil structures

US8410952B2 · kind B2 · utility

2Cited by
15References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 8, 2010
Grant dateApr 2, 2013
Priority date—
Expiry dateSep 15, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01M5/0066
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Sensor modules (12) including accelerometers (20) are placed on a physical structure (10) and tri-axial accelerometer data is converted to mechanical power (P) data (41) which then processed to provide a forewarning (57) of a critical event concerning the physical structure (10). The forewarning is based on a number of occurrences of a composite measure of dissimilarity (Ci) exceeding a forewarning threshold over a defined sampling time; and a forewarning signal (58) is provided to a human observer through a visual, audible or tangible signal. A forewarning of a structural failure can also be provided based on a number of occurrences of (Ci) above a failure value threshold.

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