摘要
基于ARM处理器和Linux操作系统搭建的开发平台,设计了一套心血管功能检测系统,实现了脉搏波信号采集、特征提取和指标计算等功能。该文主要介绍系统的硬件电路,具体描述触摸屏驱动、外部ADC驱动程序以及基于QT的可视化应用程序。该系统使用方便,具有实时性、低功耗等特点。通过与常规的心血管功能测试仪(IIM-2010A)的对比实验,表明该系统能够较好地评估心血管功能,在心内膜下心肌活力率和增长指数等几个关键性指标具有良好的相关性。
A cardiovascular function testing system was designed in platform which was built with ARM microprocessor s3c2440 and Linux system, to achieve pulse wave acquisition, feature extraction, index calculation and so on. This article mainly describes the hardware circuit, and describes the touchscreen driver, external ADC driver, and visualization QT-based applications in detail. The system is easy to use, with real-time, low power consumption. Compared with common cardiovascular function test instrument, the results shows that the system can better assess the cardiovascular function, expecially in several key indicators like subendocardial myocardial viability rate and augmentation index, the indicators show good correlations.
出处
《中国医疗器械杂志》
2017年第2期79-83,共5页
Chinese Journal of Medical Instrumentation
基金
国家自然科学基金(61301059)
中国科学院科技服务网络计划(KFJ-SW-STS-161)
安徽省科技重大专项计划项目(15czz02019)
