中圖分類號(hào)： TP399 文獻(xiàn)標(biāo)識(shí)碼： A DOI：10.16157/j.issn.0258-7998.200960 中文引用格式： 牟俊杰，姚剛，孫濤. 基于CNN-LSTM神經(jīng)網(wǎng)絡(luò)的聲紋識(shí)別系統(tǒng)設(shè)計(jì)[J].電子技術(shù)應(yīng)用，2021，47(3)：75-78. 英文引用格式： Mu Junjie，Yao Gang，Sun Tao. Design of vocieprint recognition system based on CNN-LSTM neural network[J]. Application of Electronic Technique，2021，47(3)：75-78.
Design of vocieprint recognition system based on CNN-LSTM neural network
Abstract： For warning of cardiovascular disease,in order to early detect the change of heart and lung voice representing the signs of danger,the vocieprint recognition system based on CNN-LSTM is designed. Using the Internet of Things technology coalescing the heart rate sensor chip, single-chip computer, electronic stethoscope, such as equipments,it can monitor the heart rate in real-time, early warn.And the cardiopulmonary sound recognition model based on the CNN-LSTM algorithm is trained, results show that the loss value is 0.082, accuracy rate of 0.908. The system is forward-looking and has a complete structural framework, which can effectively avoid the waste of medical resources, preposite the countermeasures for cardiovascular diseases.It has a broad application prospect in the market, and plays a significant role in promoting smart medical treatment.
Key words : CNN；LSTM；features extraction；MFCC；cardiovascular disease；vocieprint recognition
在人口老齡化日益嚴(yán)重的當(dāng)下，心血管疾病不斷威脅老年人健康，引發(fā)社會(huì)廣泛關(guān)注。由于醫(yī)療知識(shí)欠缺、行動(dòng)不便等原因，部分老年人就醫(yī)不及時(shí)，錯(cuò)過(guò)了搶救的黃金時(shí)間，留下永遠(yuǎn)的遺憾。開發(fā)心血管疾病方面的智能預(yù)警系統(tǒng)，滿足龐大的老年人群體需求迫在眉睫[3]。在醫(yī)療實(shí)踐中，對(duì)心血管疾病的診斷常常以心率、心肺音數(shù)據(jù)為重要支撐，國(guó)內(nèi)外以DSP[4]、長(zhǎng)短時(shí)記憶(Long Short Time Memory，LSTM)[5]、卷積神經(jīng)網(wǎng)絡(luò)[6](Convolutional Neural Network，CNN)等方法算法為手段對(duì)心血管疾病的信號(hào)診斷進(jìn)行了相當(dāng)多的分析，但基本均停留在理論層面，距離軟硬件結(jié)合的實(shí)際應(yīng)用尚有差距。各種醫(yī)療設(shè)備的聚焦點(diǎn)主要是信號(hào)的準(zhǔn)確采集、分離[7-8]，基于醫(yī)療倫理等原因，對(duì)智能診斷設(shè)備的研制尚處于知識(shí)儲(chǔ)備期，有巨大的空白亟需填補(bǔ)。本文設(shè)計(jì)了基于CNN-LSTM的心血管疾病預(yù)警系統(tǒng)，利用物聯(lián)網(wǎng)技術(shù)采集心率和心肺音等健康指標(biāo)數(shù)據(jù)，對(duì)老人的健康狀況進(jìn)行實(shí)時(shí)監(jiān)測(cè)、預(yù)警，采用基于CNN-LSTM模型的智能算法對(duì)心肺音信號(hào)進(jìn)行智能分析預(yù)警。系統(tǒng)著重考慮了適用性、穩(wěn)定性和成本，具有較高的實(shí)用價(jià)值和完整的結(jié)構(gòu)框架，是利用智慧醫(yī)療從應(yīng)用層面解決心血管疾病問(wèn)題的一次重要探索。
