US 12,271,186 B2
Method and system for monitoring condition of a sample handling system of a gas analyser
Krishna Prashanth, Bengaluru (IN); Sabyasachi Bhattacharyya, Pune (IN); and Kalyan Kumar Mallick, Bangalore (IN)
Assigned to ABB Schweiz AG, Baden (CH)
Appl. No. 17/275,696
Filed by ABB Schweiz AG, Baden (CH)
PCT Filed Sep. 12, 2019, PCT No. PCT/IB2019/057701
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/053807, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 201841034401 (IN), filed on Sep. 12, 2018.
Prior Publication US 2022/0026894 A1, Jan. 27, 2022
Int. Cl. G05B 23/02 (2006.01); G01N 35/00 (2006.01); G01N 35/10 (2006.01); G01N 1/22 (2006.01)
CPC G05B 23/0283 (2013.01) [G01N 35/00584 (2013.01); G01N 35/1095 (2013.01); G01N 1/2247 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for monitoring a condition of a sample handling system connected to a gas analyzer, the sample handling system comprising a sample line for supplying a gas sample to the gas analyzer, and at least one sample handling device on the sample line for operating on the gas sample, wherein the method is applied to a condition monitoring system, the method comprising:
receiving, by a network interface of the condition monitoring system, measured operational parameters associated with the sample handling system obtained with a plurality of sensors provided in the sample line, the measured operational parameters comprising a plurality of time series data associated with the sample handling system;
estimating, by one or more processors of the condition monitoring system, operational parameters associated with the sample handling system based on the measured operational parameters and data related to at least one of physical dimensions of the sample line and operating characteristics relating to the at least one sample handling device;
determining, by the one or more processors of the condition monitoring system, an operational parameter trend comprising a rate of change of the measured operational parameters;
comparing, by the one or more processors of the condition monitoring system, the measured operational parameters, the operational parameter trend, and the estimated operational parameters with reference values of operational parameters associated with the at least one sample handling device, wherein the reference values are obtained based on historical operational data comprising historically measured operational parameters, and wherein the historically measured operational parameters comprise generated distributions of a second plurality of time series data measured before the measured operational parameters;
determining, by the one or more processors of the condition monitoring system, at least one operating condition of the sample handling system based on a result of the comparison and based on the rate of change of at least one of the measured operational parameters;
generating, by the one or more processors of the condition monitoring system, an alarm based on the determined at least one operating condition, wherein the alarm includes at least one event relating to faults, warnings about failure, an estimation of life of the at least one sample handling device, an estimation of a condition of the at least one sample handling device, and a schedule of maintenance for the at least one sample handling device; and
based on the at least one operating condition of the sampling handling system, controlling, by the one or more processors of the condition monitoring system, the sample handling system to perform one or more automated corrective actions, and
wherein the operating characteristics relating to the at least one sample handling device comprise operating characteristics of at least one sample pump.