作　　者： ; (陆小健）; (丁苗江）;

机构地区： 浙江捷昌线性驱动科技股份有限公司浙江新昌312500

出　　处： 《机电工程》 2012年第8期954-957,共4页

摘　　要： 为解决目前国内电动医疗床功能简单、技术落后等问题,提出了一种多个线性驱动器同步运行、实现电动医疗床复杂位置控制的驱动与控制系统。该控制器以Cortex-M3为核心,与线性驱动器上的双霍尔传感器构成了闭环控制回路,通过模糊PID控制,实现了多个线性驱动器的同步运动控制;采用CASS嵌入式开发平台技术,在专用控制器上实现了对控制逻辑的梯形图编程,提高了开发效率;详细地描述了其系统结构、线性驱动器改进的机械结构和控制器软、硬件的设计。该系统已应用于ICU医疗床,通过对3台立柱式推杆同步运动控制和2台手持式推杆的协同控制,结果表明,该系统可实现医疗机构的各种护理和康复功能。 In order to solve the problems of simple function and backward technology of domestic electric medical bed, a drive and control system of electric medical bed which could drive multiple linear actuators synchronously to realize complicated functions of position control was presented. The Cortex-M3 was used as its core, and the closed-loop control circuit was constructed with dual Hall sensors in actuators, the synchronization motion control for multiple linear actuators was realized by using fuzzy PID algorithm. The CASS embedded platform was used to program with ladder diagram to implement control logic on the special controller, which improved the programming efficiency. The system＇s structure, the improvements of mechanical structures in linear actuators and the design of the controller were described in detail. The system has been used in an ICU medical bed which is driven synchronously by three column actuators and two handhold actuators. The results show that this system realizes all kinds of care and rehabilitation functions.

关 键 词： 电动医疗床 线性驱动器 同步运动控制 图形化编程

领　　域： [自动化与计算机技术] [自动化与计算机技术] [机械工程]