基于MMA7260的自由摆平板控制系统设计  

Design of a free pendulum flat control system based on MMA7260

作　　者：白帆[1] 王民慧[1] 

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025

出　　处：《传感器世界》2014年第5期21-25,共5页Sensor World

摘　　要：自由摆控制系统在基础物理研究、仿人智能控制及医疗手术器械等领域有着重要的应用,同时它也是控制领域中的一个经典实验对象,可为自动控制理论的教学、实验和科研提供良好的实验平台。以S12XS128微控制器作为系统的控制核心,采用了模块化的设计思想进行系统的软硬件设计,对于关键的采集传感部分,选用MMA7260倾角传感器测量水平方向倾角,该传感器灵敏度高且可调、重复性好且输出信号便于与单片机接口。微控制器根据倾角传感器采集的数据精确控制步进电机的运动,完成平板旋转运动和不同配重条件下的控制平板平衡功能。测试结果表明,该方法能够很好地完成检测功能,实现了平板平衡的高精度控制。Free pendulum control system has important applications in basic physics, human-simulated intelligent control, medical surgical instruments, and other fields It is also a classic experiment in control field, which provides a good experiment platform for the teaching of automatic control theory, experiment and research. With S12XS128 microcontroller as control core, the system adopts the modular design idea for software and hardware design. As the key part for data sensing and acquisition the tilt sensor MMA7260 is chosen for horizontal angle measurement due to high and adjustable sensitivity, good repeatability, friendly interface of the output signal to single chip microcomputer. According to the data collected by tilt sensor, microcontroller can control stepping motor movement precisely to complete flat rotation movement and balance function under the condition of different weight control tablet. Test results show the method can complete detection function well, achieve high-precision control of balanced tablet .

关 键 词：自由摆 S12×S128 MMA7260倾角传感器 步进电机 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]