...键词： 实时控制； OPC；变周期采样； DCS；软件工程 [gap=630]Keywords: real-time control; OPC; variable-period sampling; DCS; software engineering ...
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In this paper, a temperature control system for electrical heating furnace, using variable sampling period and variable structure is proposed.
本文提出一种采用变采样周期、变结构的电阻炉温度控制系统。
The event-time driven is proposed, in which the sampling period is variable with the change of Internet time delay.
提出事件-时间驱动方式，即采样周期要随着网络环境的变化而变化。
The block diagram of the system software that the soft start-up and the variable parameters PI control is realized with assemble language 80c196 according with sampling period is given out.
同时，给出了以80c 196汇编语言实现的，根据采样周期进行软启动或变参数PI控制的软件程序框图。
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