目前，PID控制及其控制器或智能PID控制器（仪表）已经很多，产品已在工程实际中得到了广泛的应用，有各种各样的PID控制器产品，各大公司均开发了具有PID参数自整定功能的智能调节器(intelligent regulator)，其中PID控制器参数的自动调整是通过智能化调整或自校正、自适应算法来实现.-At present, PID control and its controller or intelligent PID controller (instrument) has a lot of products have been obtained in engineering practice, a wide range of applications, PID controller, a wide range of products, the major companies have developed with the PID parameter self-tuning capabilities of smart regulator (intelligent regulator), which automatically adjusts the PID controller parameters is through intelligent adjustment or self-tuning, adaptive algorithms to achieve.