The invention discloses an electrical control system of an intelligent barrier-free wheelchair lifting platform, which comprises a platform driving part, a data acquisition part, a platform control part and a central processing unit, and is characterized in that the central processing unit is connected with a digital quantity transmission module and an analog quantity transmission module; the data acquisition part comprises a rotation angle sensor, a linear displacement sensor and a limit switch. Error values collected by the angle sensor are uploaded to the central processing unit (CPU), and the central processing unit calculates the output quantity of each driving mechanism through a fuzzy PID program. Designing a logic control program based on a finite-state machine by taking state perception of the sensor as a logic triggering condition; based on a stepping motor driving system of a handrail and a pedal, a fuzzy PID control system is designed, the positioning precision and robustness of equipment are improved, state monitoring and fault diagnosis can be carried out in real time, stability is good, and safety is high.
本发明公开了一种智能无障碍轮椅升降平台的电气控制系统,包括平台驱动部分、数据采集部分、平台控制部分、中央处理单元,所述中央处理单元连接有数字量传输模块和模拟量传输模块;数据采集部分包括旋转角度传感器、线位移传感器、限位开关。通过角度传感器采集到的误差值,上传到中央处理单元(CPU),中央处理单元通过模糊PID程序计算出各驱动机构的输出量。以传感器的状态感知作为逻辑触发条件,设计基于有限状态机的逻辑控制程序;基于扶手及踏板的步进电机驱动系统,设计模糊PID控制系统,提高设备的定位精度和鲁棒性,能实时进行状态监测和故障诊断,稳定性好、安全性强。
Wheelchair lifting platform fault monitoring and state diagnosis system
一种轮椅升降平台故障监测与状态诊断系统
2023-01-13
Patent
Electronic Resource
Chinese
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