Objective: To design a upper computer software which can achieve data acquisition, display, motion control for sickbed-control test system. Methods: In Visual C++6.0 environment, take advantage of Advantech's development kit, and integrate multi-thread and dual-buffer technology to achieve. PC translate user's intentions into control commands, then sent commands to PCI1240, PCI1716 through the PCI interface, PCI1240 drive stepper motor to control the movement of the bed, while PCI1716 collect movement state information. Results: Movement can be stopped immediately by clicking the stop button even during the reciprocating motion, and solve screen flicker when drawing the real-time curves. The software has been test in bed-control system many times and achieved good results. Conclusions: This paper's method realized the sickbed's motion control, data acquisition, data storage and display, compared with the method that using single chip machine and general electromotor, our method makes bed movement more precise and smooth, more function are achieved, and the software has been successfully used in the sickbed-control system.%目的:为病床控制系统测试平台设计一种能够进行数据采集与运动控制的上位机软件.方法:在Visual C++6.0环境下,利用研华科技提供的开发库,并综合了多线程和双缓冲技术来实现.上位PC机把用户的操作意图转换成控制指令,通过PCI接口传送到下位机板卡PC11240、PC11716,下位机驱动步进电机实现对病床的控制或进行实时数据的采集.结果:实现了在循环往复运动中急停按钮的实时响应并解决了曲线显示时屏幕闪烁等问题.该软件在病床控制测试平台上进行了多次应用试验.取得了良好的效果.结论:通过本文方法实现了对康复病床的运动控制,数据采集,数据保存与显示等功能,同运用单片机和普通电机控制病床的方法相比,运动控制更加精确平稳,功能更加完善,达到了设计目的.并已成功的应用在病床控制测试系统中.
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