In this paper we analyze CNC system structure, real-time control and timing sampling mechanism, three-dimension process trace technique.

本文深入分析了CNC系统体系结构、实时控制与定时采样机制、三维加工轨迹跟踪技术。

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This paper presents a clock control circuit in which an electronic clock is made by a MCU AT89C2051 16-bit timer and real-time control is achieved by the electronic clock's function of precise timing.

提出的时钟控制电路，是利用单片机at89c 2051的16位定时器做成电子时钟，并利用电子时钟的精确定时作用实现了实时控制。

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Apply fuzzy self-adaptive PID controller to control the DC timing system and design three self-adaptive PID controllers which adjust the PID parameters respectively in real-time way.

利用模糊自适应PID控制器对直流调速系统进行控制，设计了三个自适应模糊控制器分别实时调整PID参数。

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