中国医疗设备2016，Vol.31Issue(9)：24-28,5.DOI:10.3969/j.issn.1674-1633.2016.09.006
基于智能移动终端的低成本心音采集系统
Low-Cost Heart Sound Acquisition System Based on Intelligent Mobile Terminal
摘要
Abstract
Objective To prevent cardiovascular diseases, and reduce the cost of the electronic stethoscope, this article designs and implements a heart sound acquisition system based on low-cost smart phone and Android system. Methods In this paper, the acquisition of the heart sounds is achieved by combining the design of hardware and software. Via an AV cable, the designed hardware of this system transmits analog heart sounds signal to a smart phone. The heart sounds can be real-time displayed on the smart phone and can be saved as wav format for further analysis and transmission through our designed software based on Android system. By using subjective evaluation and objective evaluation method, the performance of our designed stethoscope was compared with these of two commercial stethoscopes, which have widely clinical applications currently on the market. Results The designed system can stably capture heart sounds with high quality. The SNR of the phonocardiogram is high enough. Compared with two kinds of clinical stethoscopes, the performance of our designed system is satisfactory. Conclusion The system is portable. The acquisition of heart sound signal is convenient and accurate. Through intelligent terminals, this system can send heart sound data to doctors for further diagnosis.关键词
听诊器/心音/移动终端/采集系统/低成本Key words
stethoscope/heart sounds/mobile terminals/acquisition system/low cost分类
信息技术与安全科学引用本文复制引用
徐礼胜,吕文龙,薄红瑞,康宏宇,柳家进,张柯欣,王强..基于智能移动终端的低成本心音采集系统[J].中国医疗设备,2016,31(9):24-28,5.基金项目
国家自然科学基金资助项目(61374015)；教育部博士点基金项目(20110042120037)；中央高校基本科研业务费探索导向重点项目(N110219001)；辽宁省自然基金项目(201102067)。 （61374015）
