US 11,914,057 B2
System for detecting an object approaching and/or impacting electrical equipment
George K. Frimpong, Raleigh, NC (US); Alberto Prieto Colmenero, Cary, NC (US); and Claire Pitois, Sundbyberg (SE)
Assigned to HITACHI ENERGY LTD, Zürich (CH)
Filed by HITACHI ENERGY LTD, Zürich (CH)
Filed on Dec. 10, 2019, as Appl. No. 16/709,181.
Application 16/709,181 is a continuation of application No. 15/456,431, filed on Mar. 10, 2017, granted, now 10,543,511.
Application 15/456,431 is a continuation in part of application No. 14/919,956, filed on Oct. 22, 2015, granted, now 10,431,375, issued on Oct. 1, 2019.
Claims priority of provisional application 62/238,196, filed on Oct. 7, 2015.
Prior Publication US 2020/0114393 A1, Apr. 16, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 3/808 (2006.01); B05D 7/00 (2006.01); C09D 5/08 (2006.01); B05C 1/00 (2006.01); G01S 5/00 (2006.01); G01R 31/62 (2020.01); G01S 3/803 (2006.01); G01S 11/14 (2006.01); G01S 5/18 (2006.01); C09D 5/00 (2006.01); C08K 3/22 (2006.01); C08K 5/29 (2006.01); C09D 7/00 (2018.01); C08K 3/30 (2006.01); F41H 5/06 (2006.01); G01H 1/00 (2006.01)
CPC G01S 3/808 (2013.01) [B05C 1/003 (2013.01); B05D 7/56 (2013.01); C09D 5/082 (2013.01); G01R 31/62 (2020.01); G01S 3/803 (2013.01); G01S 5/0018 (2013.01); G01S 5/18 (2013.01); G01S 11/14 (2013.01); C08K 3/22 (2013.01); C08K 5/29 (2013.01); C08K 2003/3045 (2013.01); C09D 5/002 (2013.01); C09D 7/00 (2013.01); F41H 5/06 (2013.01); G01H 1/00 (2013.01); G01S 5/0027 (2013.01); Y10S 367/906 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system for detecting an object approaching and/or impacting electrical equipment, the system comprising:
a housing for the electrical equipment;
at least one acoustic sensor for measuring a sound pressure of the object approaching the housing, the at least one acoustic sensor disposed at a predetermined location at which the at least one acoustic sensor is not in contact with the housing;
at least one vibration sensor for measuring an acceleration of a surface of the housing caused by the object striking the housing, the at least one vibration sensor disposed at a predetermined location at which the at least one vibration sensor is in contact with the housing;
at least one computer processor; and
a non-transitory computer readable storage medium having thereon a plurality of machine-readable instructions that when executed by the at least one computer processor cause the at least one computer processor to determine at least one of approach of the object for impact on the housing using comparisons of signal received from the at least one acoustic sensor against a threshold, and impact of the object to the housing using comparisons of signal received from the at least one vibration sensor against a threshold for the acceleration.