在预测控制的算法机理上给出了位置控制系统的预测模型，并在此基础上进一步介绍了基于预测控制理论的位置调节器程序的设计方法。
A predictive model of positioning system using predictive control algorithm is presented. The software design method of the positioner based on predictive control theory is introduced.
介绍了用集成锁相环路解码器LM567作为超声波检测元件，以89C51单片机作为主控元件的超声波液位测量的原理、电路及测控程序。
The theory, the circuit, and the program were introduced using LM567 as the component to detect the ultrasonic and using the MCU 89C51 as the main control component.
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