CALCULATING AND PLOTTING STATISTICAL DATA
First Claim
1. A system comprising:
- a flow computer configured to monitor a physical process external to the processing unit;
a historian unit coupled to the flow computer by way of a computer network, the historian unit configured to receive data regarding the physical process, and configured to store the data in a nonvolatile storage device; and
a human/machine interface (HMI) coupled to the historian unit by way of the computer network, the HMI configured to;
retrieve historical data values regarding the physical process from the historian unit;
calculate statistical data not held in the historian unit, the calculation based on the historical data values; and
plot the statistical data on a display device.
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Accused Products
Abstract
Calculating and plotting statistical data in a control system. At least some of the illustrative embodiments are a systems comprising a flow computer configured to monitor a physical process external to the processing unit, a historian unit coupled to the flow computer by way of a computer network (the historian unit configured to receive data regarding the physical process, and configured to store the data in a nonvolatile storage device), and a human/machine interface (HMI) coupled to the historian unit by way of the computer network. The HMI is configured to retrieve historical data values regarding the physical process from the historian unit, calculate statistical data not held in the historian unit, the calculation based on the historical data values, and plot the statistical data on a display device.
27 Citations
32 Claims
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1. A system comprising:
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a flow computer configured to monitor a physical process external to the processing unit; a historian unit coupled to the flow computer by way of a computer network, the historian unit configured to receive data regarding the physical process, and configured to store the data in a nonvolatile storage device; and a human/machine interface (HMI) coupled to the historian unit by way of the computer network, the HMI configured to; retrieve historical data values regarding the physical process from the historian unit; calculate statistical data not held in the historian unit, the calculation based on the historical data values; and plot the statistical data on a display device. - View Dependent Claims (2, 3, 4)
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5. A control system comprising:
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a processing unit comprising; a processor; a memory coupled to the processor, the memory stores a control program that, when executed by the processor, causes the processor to monitor a physical process external to the processing unit; a historian unit coupled to the processing unit by way of a computer network, the historian unit comprising; a processor; a nonvolatile storage device coupled to the processor; a memory coupled to the processor, the memory stores a historian program that, when executed by the processor, causes the processor to receive data regarding the physical process, and to store the data in the nonvolatile storage device; a human/machine interface (HMI) coupled to the historian unit by way of the computer network, the HMI comprising; a display device; a processor coupled to the display device; a memory coupled to the processor, the memory stores a trending program that, when executed by the processor, causes the processor to; retrieve historical data values regarding the physical process from the historian unit; calculate statistical data not held in the historian unit, the calculation based on the historical data values; and plot the statistical data on the display device. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A control system comprising:
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a processing unit comprising; a processor; a memory coupled to the processor, the memory stores a control program that, when executed by the processor, causes the processor to monitor a physical process external to the processing unit; a historian unit coupled to the processing unit by way of a computer network, the historian unit comprising; a processor; a nonvolatile storage device coupled to the processor; a memory coupled to the processor, the memory stores a historian program that, when executed by the processor, causes the processor to receive data regarding the physical process, and to store the data in the nonvolatile storage device; a human/machine interface (HMI) coupled to the historian unit by way of the computer network, the HMI comprising; a display device; a processor coupled to the display device; a memory coupled to the processor, the memory stores a trending program that, when executed by the processor, causes the processor to; receive from a user a request to calculate statistical data not tracked in the historian unit, the request to calculate based on data regarding the physical process; send a request regarding calculation of statistical data to the historian unit; receive statistical data; and plot the statistical data on the display device; the historian program further causes the processor of the historian unit to calculate the statistical data and provide the statistical data to the HMI. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A computer-readable medium storing a program that, when executed by a processor, causes the processor to:
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communicate with a historian unit; retrieve historical data values regarding a physical process from the historian unit; calculate statistical data not tracked in the historian unit based on the historical data values retrieved; and plot the statistical data on a display device. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A system comprising:
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a first processing unit configured to generate a plurality of streams of data values regarding a physical process, each stream of data values regarding a data point; a second processing unit coupled to the first processing unit, the second processing unit configured to; maintain historical data values for each data point; receive from a user a request to calculate statistical data not maintained as historical data values, the request to calculate based on historical data values regarding the physical process; and calculate the statistical data. - View Dependent Claims (31, 32)
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Specification