STREAMING DATA FOR ANALYTICS IN PROCESS CONTROL SYSTEMS

摘要

Techniques for streaming big data in a process plant are disclosed. Generally, these techniques facilitate storage or communication of process control data, including alarms, parameters, events, and the like, in near real-time. Receivers of big data, such as big data historians or devices requesting specific data, are configured via an initial set of metadata, and thereafter receive updated metadata upon requesting it from the transmitting device, such as when the receiving device encounters an identifier in the data, which identifier was not defined in the metadata previously received.

主权项

1. A method for communicating data in a process control system, the method comprising:
storing a first set of metadata in a device operable to transmit a data stream; storing, in the device operable to transmit the data stream, a set of data for transmitting as the data stream; transmitting the first set of metadata to a device operable to receive the data stream; receiving the first set of metadata at the device operable to receive the data stream; transmitting the data stream to the device operable to receive the data stream; receiving the data stream at the device operable to receive the data stream, after receiving the first set of metadata; and parsing the received data stream, at the device operable to receive the data stream, according to the first set of metadata.