US 12,265,001 B2
Method of status monitoring
Ludwig Niebler, Laaber (DE); and Bernhard Streich, Amberg (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on Mar. 18, 2021, as Appl. No. 17/205,228.
Claims priority of application No. 20165853 (EP), filed on Mar. 26, 2020.
Prior Publication US 2021/0302277 A1, Sep. 30, 2021
Int. Cl. G05B 19/042 (2006.01); G01M 99/00 (2011.01); G01R 19/10 (2006.01)
CPC G01M 99/005 (2013.01) [G01R 19/10 (2013.01); G05B 19/0428 (2013.01); G05B 2219/21154 (2013.01)] 17 Claims
OG exemplary drawing
 
14. A control and measuring device, comprising:
a sensor configured to detect, at a node on a common current feed line before the common current feed line splits to a plurality of current supply lines, at least one first measured value of an electrical variable in the common current feed line in a first time frame before a second time frame and detect at least one second measured value of the electrical variable in the common current feed line in the second time frame, the first time frame being before a switching process in one or a plurality of the plurality of current supply lines and the second time frame being after the switching process, wherein electrical current is carried to two or more current-carrying electrical components from an electrical energy source via the common current feed line and wherein the electrical current is carried from the common current feed line via a separate current supply line, of the plurality of current supply lines, to each respective at least one current-carrying electrical component, the two or more current-carrying electrical components being individually openable or closable via the switching process; and
a processor to
calculate a difference between the at least one first measured value, detected before the switching process, and the at least one second measured value, detected after the switching process,
determine a status change of the at least one current-carrying electrical component based upon a time series of the difference, and
set parameters of the first time frame and the second time frame.