摘要
为了提升自动调速控制效果,设计了运动辅助训练器驱动电机自动调速控制系统。感知层利用ZigBee节点实时采集设备层内运动辅助训练器的驱动电机电机信息;网络传输层通过ZigBee基站,融合各ZigBee节点采集的信息;安全通信模块以标注节点、提取有效节点与连接标注节点的方式,建立物联网安全通信信道,并引进实时传输协议,压缩与实时传输融合的信息;应用层中通过数字PI算法,结合接收的融合信息,得到电流参考值,运算得到脉冲宽度调节占空比,生成电压调节信号,完成驱动电机速度控制。实验证明:该系统可有效采集跑步机的电机转速信息,并安全传输信息;可快速调节跑步机速度;在不同干扰下,该系统的自动调速控制效果较优。
In order to improve the effectiveness of automatic speed control,a motion assisted training device driving motor automatic speed control system was designed.In the perception layer,ZigBee node is used to collect the driving motor information of the motion assistant trainer in the Mechanical floor in real time;The network transmission layer integrates the information collected by each ZigBee node through the ZigBee base station;The secure communication module establishes a secure communication channel for the Internet of Things by labeling nodes,extracting effective nodes,and connecting labeled nodes,and introduces real-time transmission protocols to compress and transmit integrated information in real-time;In the application layer,a digital PI algorithm is used,combined with the received fusion information,to obtain the current reference value,calculate the pulse width adjustment duty cycle,generate a voltage adjustment signal,and complete the speed control of the driving motor.The experiment proves that the system can effectively collect the motor speed information of the treadmill and safely transmit the information;Can quickly adjust the speed of the treadmill;Under different interferences,the automatic speed control effect of this system is better.
作者
马涛
巩博
陈杨
MA Tao;GONG Bo;CHEN Yang(Air Force Medical University,Xi’an 710000,China)
出处
《自动化与仪器仪表》
2023年第7期151-154,160,共5页
Automation & Instrumentation
基金
军事医学提升计划(2020JSTS17)。
