US 12,140,634 B2
Continuously monitored remote power shutdown
Carl Eric Arnsdorff, Knoxville, TN (US); Ryan Hurrell, Knoxville, TN (US); and Garrett Sexton, Knoxville, TN (US)
Assigned to Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Appl. No. 17/597,513
Filed by Siemens Medical Solutions USA, Inc., Malvern, PA (US)
PCT Filed Jul. 8, 2020, PCT No. PCT/US2020/070244
§ 371(c)(1), (2) Date Jan. 10, 2022,
PCT Pub. No. WO2021/035232, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/889,243, filed on Aug. 20, 2019.
Prior Publication US 2022/0252668 A1, Aug. 11, 2022
Int. Cl. G01R 31/327 (2006.01); G01R 19/00 (2006.01); G08B 21/18 (2006.01)
CPC G01R 31/327 (2013.01) [G01R 19/0092 (2013.01); G08B 21/185 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system comprising:
a monitoring circuit coupled to a power removal circuit, wherein the monitoring circuit generates an output signal indicative of circuit integrity based on one or more electrical characteristics of the power removal circuit, wherein the power removal circuit includes a disconnector, an actuator and a trip device, wherein the trip device is powered by a control power only upon activation of the actuator and activates the disconnector to remove system power to an equipment in response to the activation, wherein the monitoring circuit comprises a high impedance device and a current transformer coupled across the actuator in the power removal circuit, and a current meter coupled across the current transformer to generate the output signal; and
a notification system coupled to the monitoring circuit to receive the output signal, wherein the notification system generates a notification based on the output signal.