Anomaly detection method and system for process instrument, and storage medium
US11681597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2017 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jan 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0289
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An anomaly detection method and system for a process instrument, and a storage medium are disclosed. The method includes that: a programmable logic controller (PLC) receives measurement data of a process instrument, the measurement data being periodically stored into a historical database so that a service providing system can perform reading and evaluation. At least one virtual function module is integrated on the PLC, a mapping relation is formed between at least one input channel of each virtual function module and output of at least one anomaly diagnosis algorithm disposed on the service providing system, and each anomaly diagnosis algorithm is used for diagnosing whether an anomaly exists in the process instrument. When an anomaly indication outputted by the service providing system is received via an input channel of the virtual function module, the PLC determines that an anomaly exists in the corresponding process instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.