Speaker
Description
The EAST (Experimental Advanced Superconducting Tokamak) facility is designed to achieve high-performance steady-state operation. Its data acquisition system provides unified data acquisition and long-term data storage for various diagnostic systems, primarily supporting offline data analysis. With the advancement of long-pulse operation on EAST, researchers require access to real-time data during the long-pulse operation, for the live monitoring of key signals and even for performing simple real-time data processing. To address this, an exploration aiming at quasi-steady state real-time data transmission within the data acquisition framework, and a prototype system has been developed for tests. The prototype consists of DAQ console, DAQ unit and data service, utilizing ZeroMQ for communication. The DAQ console manages acquisition configurations and control the workflow. Each DAQ unit acquires diagnostic data in real-time and transmits it, formatted in a time-sliced format, to the data service module using a request/reply pattern. Upon receipt, the data service immediately publishes the data via a publish/subscribe pattern while simultaneously storing it for long-term archive. Clients can subscribe to specific signals to receive real-time streams for visualization or basic analysis, they can retrieve complete datasets through the offline data service. Initial feasibility has been demonstrated through a successful 1000-second test, and further evaluation with the prototype system are currently in progress.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |