Time-stamped emissions data collection for process control devices
First Claim
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1. A method in a process control device monitoring system, the method comprising:
- measuring, in the process control device monitoring system, one or more operating states of a process control device;
associating, in the process control device monitoring system, a time-stamp with the one or more measured operating states of the process control device at a point in time when a fugitive emission, to a surrounding atmosphere, begins to occur, wherein the time-stamp is associated with the one or more operating states in response to a trigger that is generated based on the one or more measured operating states, and wherein the trigger is indicative that the fugitive emission has occurred; and
transmitting the time-stamp and an indication of the one or more operating states to a monitoring device that quantifies an amount of fugitive emissions based on the time-stamp and the indication of the one or more operating states, wherein the time-stamp is associated with data from a position sensor in response to a trigger that is representative of a change in the data from the position sensor, a minimum value of the data from the position sensor, or a maximum value of the data from the position sensor.
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Abstract
The claimed method and system provide a process control device monitoring system and a process control valve assembly with a process control device monitoring system to measure one or more operating states of a process control device. The process control device monitoring system may also associate a time-stamp with the one or more measured operating states of the process control device in response to a trigger generated based on the one or more measured operating states. The process control device monitoring system may also transmit the time-stamp and an indication of the one or more operating states to a monitoring device.
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Citations
23 Claims
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1. A method in a process control device monitoring system, the method comprising:
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measuring, in the process control device monitoring system, one or more operating states of a process control device; associating, in the process control device monitoring system, a time-stamp with the one or more measured operating states of the process control device at a point in time when a fugitive emission, to a surrounding atmosphere, begins to occur, wherein the time-stamp is associated with the one or more operating states in response to a trigger that is generated based on the one or more measured operating states, and wherein the trigger is indicative that the fugitive emission has occurred; and transmitting the time-stamp and an indication of the one or more operating states to a monitoring device that quantifies an amount of fugitive emissions based on the time-stamp and the indication of the one or more operating states, wherein the time-stamp is associated with data from a position sensor in response to a trigger that is representative of a change in the data from the position sensor, a minimum value of the data from the position sensor, or a maximum value of the data from the position sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A process control valve assembly comprising:
- a valve to control a process;
a position sensor to measure a position of a portion of the valve; a valve, monitoring system to receive data from the position sensor, wherein the valve monitoring system is configured to associate a time-stamp with the data from the position sensor, at a point in time when a fugitive emission, to a surrounding atmosphere, begins to occur, wherein the valve monitoring system comprises a processor and a non-transitory computer-readable medium with instructions executable by the processor of the valve monitoring system to quantify an amount of fugitive emissions based on the time-stamp and the data from the position sensor; and a communications interface for transmitting data, from the valve monitoring system that is representative of the amount of fugitive emissions, wherein the time-stamp is associated with the data from the position sensor in response to a trigger that is representative of a change in the data from the position sensor, a minimum value of the data from the position sensor, or a maximum value of the data from the position sensor. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
- a valve to control a process;
Specification