Condition monitoring with alarm confidence levels for flow metering systems
AssigneeDaniel Measurement and Control, Inc.
InventorLawson Hamilton Ramsay
Life of this patent
Estimating the term…
Abstract
Apparatus and method for monitoring flow meter operation. In one embodiment, a flow metering system includes a flow meter and a condition monitor. The flow meter is configured to measure volume of fluid flowing through the flow meter. The condition monitor is coupled to the flow meter and is configured to monitor a parameter of operation of the flow meter, and to compare a value of the parameter to a threshold. The condition monitor is also configured to generate an alarm based on the value exceeding the threshold, and to compute, based on the alarm, a confidence level indicating a degree of certainty that the system is operating in accordance with predetermined criteria.
Claims21
A flow metering system, comprising:
- a flow meter configured to measure volume of fluid flowing through the flow meter;
- and
- a condition monitor coupled to the flow meter and configured to:
- monitor a parameter of operation of the flow meter;
- compare a value of the parameter to a threshold;
- generate an alarm based on the value exceeding the threshold;
- and
- compute, based on the alarm, a confidence level indicating a degree of certainty that the system is operating in accordance with predetermined criteria.
A method for monitoring operation of a flow meter, comprising:
- acquiring, by a monitoring system, a value of a parameter of operation of the flow meter during operation of the flow meter;
- comparing, by the monitoring system, the value of the parameter to a threshold;
- generating, by the monitoring system, an alarm based on the value exceeding the threshold;
- and
- computing, by the monitoring system, based on the alarm, a confidence level indicating a degree of certainty that the flow meter is operating in accordance with predetermined criteria.
A condition monitoring system for monitoring operation of a flow meter, comprising:
- a parameter verification engine configured to:
- acquire a value of a parameter of operation of the flow meter during operation of the flow meter;
- compare the value of the parameter to a threshold;
- generate an alarm based on the value exceeding the threshold;
- and
- compute, based on the alarm, a confidence level indicating a degree of certainty that the flow meter is operating in accordance with predetermined criteria.
Dependencies are inferred from the claim text.