Weng Kaili, Turk Basil, Dolores Louis, Nguyen Tuan N, Celler Branko, Su Steven, Nguyen Hung T
Faculty of Engineering, University of Technology Sydney, Broadway, NSW, 2007 Australia.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:2569-72. doi: 10.1109/IEMBS.2010.5626650.
This paper investigates the application of a multi-loop PID controller in an automated treadmill exercise machine. The approach is to design a computer-controlled treadmill control system for the regulation of heart rate (HR) during treadmill exercise. A single-input and multiple-output (SIMO) controller was implemented to fast track a given heart rate profile in treadmill exercise. Two separate single-input and single-output (SISO) PID control systems are initially implemented to modify either the treadmill speed or its angle of inclination in order to achieve a desired HR. The purpose of this paper is to apply a SIMO control system by implementing a control algorithm which includes the two PID controllers working simultaneously to track the desired HR profile. The performance of the SIMO and SISO control systems are compared through the closed loop responses recorded during experimentation. This would also help future development of safe treadmill exercise system.
本文研究了多回路PID控制器在自动跑步机健身器材中的应用。其方法是设计一种计算机控制的跑步机控制系统，用于在跑步机运动期间调节心率（HR）。实现了一个单输入多输出（SIMO）控制器，以在跑步机运动中快速跟踪给定的心率曲线。最初实现了两个独立的单输入单输出（SISO）PID控制系统，以修改跑步机速度或其倾斜角度，从而实现期望的心率。本文的目的是通过实现一种控制算法来应用SIMO控制系统，该算法包括两个PID控制器同时工作以跟踪期望的心率曲线。通过实验期间记录的闭环响应来比较SIMO和SISO控制系统的性能。这也将有助于安全跑步机运动系统的未来发展。
