System and method for monitoring changes in process dynamic behavior by mapping parameters to a lower dimensional space
AssigneeHoneywell Inc.
InventorsMichael Forbes, Johan Backstrom, Gregory E. Stewart
Life of this patent
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Abstract
A method includes acquiring process data collected in an industrial process control and automation system. The method also includes reducing a dimension space of the process data by combining two or more parameters of the process data or examining a frequency response of the process data. The method further includes determining a change in a process based on a change in the process data in the reduced dimension space. The method also includes outputting a result based on the determined change in the process.
Claims17
A method for monitoring changes in process dynamic behavior in an industrial process using a device including a processing device, a memory and a communication unit, the method comprising:
- acquiring, by the processing device, process data collected and stored in the memory of the device and from one or more controllers through a plurality of sensors or actuator associated with an industrial process control and automation system;
- reducing, by the processing device, a dimension space of the process data by combining two or more parameters of the process data or examining a frequency response of the process data, the dimension space of the process data is reduced by combining a time constant parameter and a time delay parameter into a response time parameter, wherein the response time parameter is the sum of the time constant parameter and the time delay parameter;
- determining, by the processing device, a change in a process based on a change in the process data in the reduced dimension space;
- outputting, by the communication unit of the device, a result based on the determined change in the process;
- and
- adjusting the industrial process control and automation system using the result to re-tune or calibrate a component of the industrial process control and automation system.
An apparatus for monitoring changes in the dynamic behavior of an industrial process comprising:
- at least one processing device, a memory and a communication unit configured to:
- acquire process data collected and stored in the memory of the apparatus and from one or more controllers through a plurality of sensors or actuator associated with an industrial process control and automation system;
- reduce a dimension space of the process data by combining two or more parameters of the process data or examining a frequency response of the process data, the dimension space of the process data is reduced by combining a time constant parameter and a time delay parameter into a response time parameter, wherein the response time parameter is the sum of the time constant parameter and the time delay parameter;
- determine a change in a process based on a change in the process data in the reduced dimension space;
- output, by the communication unit, a result based on the determined change in the process;
- and
- adjust the industrial process control and automation system using the result to re-tune or calibrate a component of the industrial process and automation system.
A non-transitory computer readable medium containing instructions that when executed cause at least one processing device to monitor changes in process dynamic behavior of an industrial process using a device, the device further including a memory and a communication unit:
- acquire process data collected and stored in the memory of the device and from one or more controllers through a plurality of sensors or actuator associated with an industrial process control and automation system;
- reduce a dimension space of the process data by combining two or more parameters of the process data or examining a frequency response of the process data, the dimension space of the process data is reduced by combining a time constant parameter and a time delay parameter into a response time parameter, wherein the response time parameter is the sum of the time constant parameter and the time delay parameter;
- determine a change in a process based on a change in the process data in the reduced dimension space;
- output, by the communication unit, a result based on the determined change in the process;
- and
- adjust the industrial process control and automation system using the result to retune or calibrate a component of the industrial process and automation system.
Dependencies are inferred from the claim text.