摘要
为降低系统辨识入门难度,激发学生的学习兴趣,开发了一套实验教学装置,设计了一个内部结构为一阶和二阶电路而参数未知的待测对象“白盒子”,采用STM32F103单片机实现波形测量,结合上位机实现虚拟示波器与标尺功能。设计基于阶跃响应法的实验内容,逐步递进辨识系统参数。结合翻转课堂教学模式,提高学生参与度。教学实施结果表明,基于物理白盒子的辨识实验有助于学生深入理解系统辨识概念并掌握基本方法,从形象思维转向抽象思维,提高实践能力。
In order to stimulate students’interest of system identification and reduce the difficulty of study,a set of experimental equipment is developed for system identification teaching,which includes a“white box”with a known structure of first-order and second-order circuit but unknown parameters.The signal measurement is implemented by STM32F103 microcontroller and virtual oscilloscope run in host computer.The teaching contents and procedures of identification experiment is designed based on step response method to change students from concrete thinking to abstract thinking.Flipped Classroom teaching mode is practiced to improve student participation.The teaching outcomes indicate that the identification experiment based on physical white box significantly assists students in comprehensively understanding the concept of system identification and mastering the basic methods.This process subsequently enhances their practical abilities and lays a solid foundation for their upcoming courses.
作者
陆金金
梅名豪
田园
LU Jinjin;MEI Minghao;TIAN Yuan(School of Marine Electrical Engineering,Dalian Maritime University,Dalian 116026,Liaoning,China)
出处
《实验室研究与探索》
CAS
北大核心
2024年第10期169-174,227,共7页
Research and Exploration In Laboratory
基金
教育部产学合作协同育人项目(3141022212)
大连海事大学教改项目(0039012203)。
关键词
实验教学
系统辨识
翻转课堂
虚拟示波器
experimental teaching
system identification
flipped classroom
virtual oscilloscope
作者简介
陆金金(1985-),女,江苏南通人,硕士,实验师,主要从事实验教学工作以及智能硬件与嵌入式应用研究。Tel.:13889593204,E-mail:ljjcat@dlmu.edu.cn。
