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以多旋翼飞行器的螺旋桨系统为实验对象,开发了螺旋桨动力特性测试实验系统。系统由C8051F120单片机模拟手持遥控器发出PPM信号驱动和控制螺旋桨运转,借助杠杆机构由悬臂梁测力传感器采集升力信号,通过串行通信接口,由上位机进行数据显示、存储、分析和处理。上位机监控系统由Qt/QWT框架设计开发,支持跨平台应用,具备丰富数据分析与显示功能,可根据用户指令控制单片机系统运行,设定下位机采集参数,并实时处理接收数据。该系统可用于微小型螺旋桨系统动态和静态特性分析、建模与闭环控制系统设计,为测试与控制类专业学生开设综合性特色实验提供全新的实验平台,亦可用于旋翼机系统设计与分析。
Taking the propeller system of multi-rotor vehicle as an experimental object, a test system of propeller dynamic characteristics was developed. The system consists of C8051F120 single-chip analog hand-held remote control to send out PPM signal to drive and control the propeller operation. With a lever mechanism, the lift force signal is collected by the cantilever load cell, and the data is displayed, stored, analyzed and processed by the host computer through the serial communication interface. The PC monitoring system is designed and developed by the Qt / QWT framework. It supports cross-platform applications and has rich data analysis and display functions. It can control the operation of the single-chip microcomputer system according to user’s instruction, set the lower computer to collect parameters and process the received data in real time. The system can be used for dynamic and static characteristics analysis, modeling and closed-loop control system design of micro-propeller system. It can provide a new experimental platform for test and control specialty students to set up comprehensive characteristic experiment. It can also be used in the design and analysis of rotorcraft system.