초록 ▼

A process device couples to a process control loop. The process device receives process signals. A memory in the process device contains a nominal parameter value and a rule. Computing circuitry calculates a statistical parameter of the process signal and operates on the statistical parameter and th

A process device couples to a process control loop. The process device receives process signals. A memory in the process device contains a nominal parameter value and a rule. Computing circuitry calculates a statistical parameter of the process signal and operates on the statistical parameter and the stored nominal value based upon the stored rule and responsively provides an event output based upon the operation. Output circuitry provides an output in response to the event output.

대표청구항 ▼

[ What is claimed is:] [1.] A process device coupled to a process control loop, comprising:a process signal input providing a process signal related to a process;memory containing a trained parameter representative of statistical function of an observed process signal and a rule;computing circuitry

[ What is claimed is:] [1.] A process device coupled to a process control loop, comprising:a process signal input providing a process signal related to a process;memory containing a trained parameter representative of statistical function of an observed process signal and a rule;computing circuitry calculating a current parameter representative of a statistical function of the process signal and operating on the current parameter and the trained parameter based upon the rule to thereby recognize a pattern in the process signal associated with a failure event and responsively providing a failure event output in response to an event in the process detected based upon the operation; andoutput circuitry outputting the failure event output.