US 11,835,429 B2
Apparatus for equipment monitoring
Moncef Chioua, Montreal (CA); Subanatarajan Subbiah, Neulussheim (DE); Arzam Muzaffar Kotriwala, Ladenburg (DE); and Ido Amihai, Bensheim (DE)
Assigned to ABB Schweiz AG, Baden (CH)
Filed by ABB Schweiz AG, Baden (CH)
Filed on Sep. 21, 2021, as Appl. No. 17/480,163.
Application 17/480,163 is a continuation of application No. PCT/EP2020/057505, filed on Mar. 18, 2020.
Claims priority of application No. 19164535 (EP), filed on Mar. 22, 2019.
Prior Publication US 2022/0003637 A1, Jan. 6, 2022
Prior Publication US 2022/0236144 A2, Jul. 28, 2022
Int. Cl. G06F 11/30 (2006.01); G01M 99/00 (2011.01)
CPC G01M 99/005 (2013.01) 16 Claims
OG exemplary drawing
 
1. An apparatus for equipment monitoring, the apparatus comprising:
an input unit;
a processing unit; and
an output unit;
wherein the input unit is configured to provide the processing unit with a plurality of batches of temporal sensor data for an item of equipment, wherein each batch of temporal sensor data comprises a plurality of temporal sensor values as a function of time;
wherein the processing unit is configured to process the plurality of batches of temporal sensor data to determine a plurality of batches of spectral sensor data, wherein each batch of spectral sensor data comprises a plurality of spectral sensor values as a function of frequency;
wherein the processing unit is configured to implement at least one statistical process algorithm to process the plurality of spectral sensor values for the plurality of batches of spectral sensor data to determine a plurality of index values, wherein for each batch of spectral sensor data there is an index value determined by each of the statistical process algorithms, the index value being determined from a Fast Fourier Transform algorithm (FFT) determined energy spectral content for that batch;
wherein each statistical process algorithm has an associated threshold value, and wherein the processing unit is configured to utilize the at least one threshold value and the plurality of index values to determine a batch of spectral sensor data of interest that has an index value greater than the threshold value for the associated statistical process algorithm;
wherein the processing unit is configured to sub-divide the spectral values for the batch of spectral data of interest into a plurality of frequency ranges;
wherein the processing unit is configured to determine a frequency range of interest on the basis of the plurality of spectral sensor values for the batch of spectral sensor data of interest;
wherein the frequency range of interest is determined as a frequency range that exhibits a value greater than values associated with the other frequency ranges; and
wherein the output unit is configured to output an indication of the frequency range of interest to a user.