PATENT CLAIM ANALYSIS

Application Number: 16230795
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["702", "182000"]

Abstract:
A plant includes equipment that operate to affect a variable state or condition of the plant in response to a control signal. A feedback controller monitors a process variable received via a feedback signal from the plant and uses an error signal representing a setpoint error between the process variable and a setpoint to generate the control signal for the plant. An exponentially-weighted moving average (EWMA) calculator generates EWMA values based on the setpoint error. A normalized index generator uses the EWMA values to calculate a normalized performance index. A threshold generator generates a threshold based on a first alarm parameter κ representing a normalized magnitude of the setpoint error and a second alarm parameter η representing a normalized duration that the setpoint error has persisted. An alarm manager generates an alarm in response to the normalized performance index crossing the threshold.

Claim (Index 9):
A method for using a normalized performance index for setpoint alarming in a feedback control system, the method comprising:\n operating equipment of a plant to affect a variable state or condition of the plant in response to a control signal; monitoring a process variable received via a feedback signal from the plant; using an error signal representing a setpoint error between the process variable and a setpoint to generate the control signal for the plant; generating exponentially-weighted moving average (EWMA) values based on the setpoint error as new values of the process variable are received; calculating a normalized performance index based on the EWMA values; generating a threshold based on a first alarm parameter \u03ba representing a normalized magnitude of the setpoint error and a second alarm parameter \u03b7 representing a normalized duration that the setpoint error has persisted; and generating an alarm in response to the normalized performance index crossing the threshold.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 98.0
- Lexical Diversity: 2.27273
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14961747', '15080435', '13794683', '10844663', '14107978']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.1662511414691341
- 35 USC 102 Novelty (BERT): 0.5953814663409586
- Combined Prediction Score: 0.2091641739563166
- Mean Citation Score: 278.03714
- Max Citation Score: 555.7603
- Similarity Product: 422.20169231475

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test