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System and method to display data defining operation of a valve assembly on a trend graph on a user interface
System and method to display data defining operation of a valve assembly on a trend graph on a user interface
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机译:在用户界面上的趋势图上显示定义阀门组件操作的数据的系统和方法
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摘要
A system and a method to display diagnostic and operating data on a trend graph via a web browser so that the data appears to trend in real-time. In one embodiment, the system includes a server with an architecture having multiple layers. The layers include a pair of first in, first out (FIFO) data queues including a first data queue and a second data queue. The embodiments utilize a timing structure with a plurality of timers including a first timer to regulate calls from the first data queue to a data source (e.g., a valve assembly or controller on a distributed control system), a second timer to regulate calls from the second data queue to the first data queue, and a third timer to regulate calls from the web browser to the second data queue for data to display on trend graph.
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