Methods and apparatus to monitor health information of a valve
AssigneeFisher Controls International LLC
InventorShawn William Anderson
Life of this patent
Estimating the term…
Abstract
Methods, apparatus, systems, and articles of manufacture to monitor health information of a valve are disclosed. An example system includes a field device in a process control network to monitor a valve, and a valve health monitor to be communicatively coupled to the field device to obtain operational health information from the field device when the valve is commanded to move from a first position to a second position, the first position opposite the second position, identify a condition of the valve based on the operational health information, and send an alert via the process control network based on the condition of the valve.
Claims20
A system comprising:
- a field device in a process control network to monitor a valve, the field device to:
- measure a first operational value of a health parameter of the valve when the valve is at a first position;
- and
- measure a second operational value of the health parameter when the valve is at a second position;
- and
- a valve health monitor to be communicatively coupled to the field device, the valve health monitor to:
- in response to the valve being commanded to move from the first position to the second position, obtain operational health information from the field device during a time period spanning the valve moving from the first position to the second position, the first position different from the second position, the operational health information including the first operational value and the second operational value, the valve moving from the first position to the second position representative of a full-stroke valve operation of the valve;
- calculate a first difference between the first operational value and a first baseline value;
- calculate a second difference between the second operational value and a second baseline value;
- identify a condition of the valve based on at least one of (i) the first satisfying a first threshold or (ii) the second difference satisfying a second threshold;
- and
- send an alert via the process control network based on the condition of the valve.
An apparatus comprising:
- at least one processor;
- and
- memory in communication with the at least one processor, the memory including computer readable instructions which, when executed, cause the at least one processor to at least:
- in response to a valve being commanded to move from a first position to a second position, obtain operational health information from the valve during a time period spanning the valve moving from the first position to the second position, the first position different from the second position, the valve moving from the first position to the second position representative of a full-stroke valve operation of the valve;
- determine a first operational value for a health parameter of the valve based on the operational health information;
- determine a second operational value for the health parameter based on the operational health information;
- determine a first difference between the first operational value and a first baseline value;
- determine a second difference between the second operational value and a second baseline value;
- and
- identify a condition of the valve based on at least one of (i) the first difference satisfying a first threshold or (ii) the second difference satisfying a second threshold.
A non-transitory computer readable storage medium comprising instructions that, when executed, cause at least one processor to at least:
- obtain operational health information from a valve during a time period spanning the valve moving from a first position to a second position, the obtaining in response to a valve being commanded to move from the first position to the second position, the movement of the valve from the first position to the second position to be representative of a full-stroke valve operation of the valve;
- determine a first operational value for a health parameter associated with the valve based on the operational health information;
- determine a second operational value for the health parameter based on the operational health information;
- determine a first difference between the first operational value and a first baseline value;
- determine a second difference between the second operational value and a second baseline value;
- and
- identify a condition of the valve based on at least one of (i) the first difference satisfying a first threshold or (ii) the second difference satisfying a second threshold.
Dependencies are inferred from the claim text.