说明：  PID控制器的计算机控制实现 实验目的：（1）通过实验进一步掌握计算机控制的基本原理；  （2）熟练掌握基本PID控制器（增量式为主）的原理、设计和算法编排；  （3）掌握HY-6070板的基本工作原理，能熟练的进行接口（A/D、D/A）程序设计
(Purpose: (1) experiment to further understand the basic principles of computer control  (2) master the basic PID controller (incremental-based) principles, design and layout algorithms  (3) HY-6070 control board The basic working principle, can be trained to interface (A/D, D/A) Programming)