摘要
为解决现有肺部监测系统基本依赖于PC平台而造成的使用场合受限问题,开发一种面向肺功能检测的便携式电阻抗成像系统。进行系统硬件和软件设计,并介绍成像算法。通过标定板进行性能分析,结果表明:通道一致性和重复性较好,整体的信噪比在60 dB左右。进行单目标和双目标的水槽实验,计算得到其图像误差最小分别为1.10和1.00,图像相关系数最大分别为0.86和0.84。进行人体肺呼吸成像实验,清晰地反映出人体呼吸过程中肺部的面积变化,实现了动态成像的功能。
A portable electrical impedance tomography system for pulmonary function detection is developed to solve the limited use occasions of the existing lung monitoring system due to its dependence on PC platform. The hardware and software of the system are designed with the introduction of imaging algorithm. The performance of the system is analyzed by calibration board. The results show that the channel consistency and repeatability are good, and the overall signal-to-noise ratio is about 60 dB. Single and double target flume experiments are conducted with the minimum image error as 1.10 and 1.00 respectively, and the maximum image correlation coefficient as 0. 86 and 0. 84 respectively. The results of human lung respiration imaging experiment clearly reflect the changes of pulmonary area in the process of human breathing, which realizes the function of dynamic imaging.
作者
李芳
方海东
吴阳
高贵锋
刘凯
姚佳烽
LI Fang;FANG Haidong;WU Yang;GAO Guifeng;LIU Kai;YAO Jiafeng(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Mechanical and Electrical Engineering,Sanjiang University,Nanjing 210012,China;AMBULANC(Shenzhen)Tech Co.,Ltd.,Shenzhen 518052,China)
出处
《机械制造与自动化》
2022年第5期239-242,246,共5页
Machine Building & Automation
基金
国家自然科学基金面上项目(62071224)。
关键词
肺功能检测
便携式
电阻抗成像
系统开发
pulmonary function detection
portable
electrical impedance tomography
system development