US 11,927,487 B2
Wireless industrial process monitor
Theodore Henry Schnaare, Carver, MN (US)
Assigned to ROSEMOUNT INC., Shakopee, MN (US)
Filed by Rosemount Inc., Shakopee, MN (US)
Filed on Jan. 25, 2021, as Appl. No. 17/156,907.
Application 17/156,907 is a continuation of application No. 14/499,719, filed on Sep. 29, 2014, granted, now 10,914,635.
Prior Publication US 2021/0148763 A1, May 20, 2021
Int. Cl. G01H 17/00 (2006.01); G01J 5/10 (2006.01); G01M 99/00 (2011.01); H04Q 9/00 (2006.01); G01J 5/00 (2022.01)
CPC G01J 5/10 (2013.01) [G01H 17/00 (2013.01); G01M 99/00 (2013.01); H04Q 9/00 (2013.01); G01J 2005/0077 (2013.01); H04Q 2209/823 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A wireless industrial process monitor for monitoring an industrial process, comprising:
a controller configured to control operation of the industrial process monitor;
an ambient environment sensor configured to sense acoustic signals received from an ambient environment of the industrial process proximate the process monitor and responsively provide a sensor output signal, wherein the ambient environment sensor is an acoustic sensor configured to operate in a low power pilot mode at a first sampling rate and in a high power mode at a second sampling rate, wherein the first sampling rate is less than the second sampling rate;
a memory configured to store acoustic profile information comprising acoustic amplitude values at a plurality of frequencies;
wireless output circuitry configured to provide an output based upon the sensor output signal; and
wherein the controller causes the ambient environment sensor to enter a high power mode upon detection of an anomaly in the sensor output signal based upon a comparison of acoustic amplitude values at a plurality of frequencies in the sensor output with the acoustic amplitude values at the plurality of frequencies of the acoustic profile information stored in the memory.