C语言实现PID算法。PID算法是目前一般控制领域中经常使用的自动控制算法，它依据给定的设定值，反馈值，以及比例系数，积分和微分时间，计算出一定的控制量，使被控对象能保持在设定的工作范围，并且可以自动的消除外部扰动。下面介绍PID算法的实现以及其离散化的过程和依据。-C language PID algorithm. PID algorithm is frequently used in the field of general control of the automatic control algorithm, it is calculated according to a given set value, the feedback value, and the proportional coefficient, integral and derivative time, a certain amount of control, so that the controlled object can be maintained at set the scope of work, and can automatically eliminate external disturbance. Here PID algorithm and discretization and basis.