新生儿暖箱内床体倾斜与角度控制的实现  

Implementation of Inclination and Angle Control to the Bed in a Newborn Incubator

作　　者：许俊红 吴习之 XU Jun-hong;WU Xi-zhi(Shenzhen Coman Medical Equipment Co., LTD (Guangdong Shenzhen 518000);Department of Electrical and Computer Engineering, Boston University (Boston 02215, USA))

机构地区：[1]深圳市科曼医疗设备有限公司,广东深圳518000 [2]波士顿大学电子与计算机工程系,美国波士顿02215

出　　处：《中国医疗器械信息》2017年第17期18-22,共5页China Medical Device Information

摘　　要：由于暖箱内床体组件每周都需要清洁,在床体上安装传感器很难实现。床体倾斜的运动轨迹,可转换为三角形函数关系式,通过相应的算法可以计算出近似倾斜角度。采用Proe软件设计出合适的快拆与执行单元,通过机构仿真模式确认结果,并打样出实物;利用电机拖动技术,计算出需要的电机扭矩和速度,采用编码器或其他位置传感器实时采集电机或执行单元的位置,计算出直线距离,带入对应的数学模型,计算出当前的角度并反馈给控制单元,完成闭环控制。对系统进行了多次角度控制测试和保护电测试,系统均能很好地满足设计的控制要求,能够使床体很好的控制到指定角度。利用Proe软件和电动拖动技术实现新生儿保温箱内倾斜角度的自动控制。Since the bed body components need to be cleaned every week,it is difficult to install a sensor on the bed.In this paper,we convertthe movement trajectory of the bed into a triangular function relationand calculate the approximate inclination angle by a corresponding algorithm.Wefirstly use‘Proe?software to design a suitable quick release and execution unit.Then we confirm the results through the simulation mode and proof out of the kind.We use the motor drag technology to calculate the required motor torque and speed,while using the encoder or other position sensors to get real-time position of the motor or execution unit.After that,we calculate the straight line distance and bring into the corresponding mathematical model.Finally,we calculate the current angle and feedback to the control unit to complete the closed-loop control.After a series of angle control tests and electrical protection tests,we find that the system can well meet the design requirement and also can make the bed body be primly controlled to a specified angle.The automatic control to the inclination angle of the newborn incubator was implemented through the‘Proe’software and the motor drag technology.

关 键 词：新生儿暖箱 自动床体倾斜 角度计算方法 

分 类 号：R197.39[医药卫生—卫生事业管理]