A Real-Time QRS Detection System With PR/RT Interval and ST Segment Measurements for Wearable ECG Sensors Using Parallel Delta Modulators
A Real-Time QRS Detection System With PR/RT Interval and ST Segment Measurements for Wearable ECG Sensors Using Parallel Delta Modulators
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DOI：
10.1109/tbcas.2018.2823275
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发表时间：
2018-08-01
影响因子：
5.1
通讯作者：
Tang, Wei
中科院分区：
文献类型：
--
作者：
Tang, Xiaochen;Hu, Qisong;Tang, Wei
介绍了一种用于可穿戴设备的实时心电监测系统。该系统基于提出的并行Delta调制器结构，采用局部极大点和局部极小点算法来检测QRS波和PT波。因此，使用所提出的系统和算法，可以在长期可穿戴心电记录中实现实时的PR和RT间期以及ST段的测量。用MIT-BIH心律失常数据库检测QRS波，用QT数据库检测P波和T波。仿真结果表明，该算法对QRS波群、P波和T波的检测准确率分别达到99%、91%和98%以上。给出了系统原型的实验结果，其中并行增量调制器电路采用IBM 0.13微米标准工艺制作，算法在Xilinx Spartan-6现场可编程门阵列(FPGA)上实现。在+/-0.6V电源下，并行Delta调制器在1 kHz采样率下的功耗为720 nW。该系统有可能应用于未来长期可穿戴的心电记录设备。
This paper presents a real-time electrocardiogram (ECG) monitoring system for wearable devices. The system is based on the proposed parallel delta modulator architecture with local maximum point and local minimum point algorithms to detect QRS and PT waves. Therefore, using the proposed system and algorithm, real-time PR and RT intervals, and ST segment measurements can be achieved in long-term wearable ECG recording. The algorithm is tested with the MIT-BIH Arrhythmia Database for QRS complex detection and with the QT Database for the P and T wave detections. The simulation result shows that the algorithm achieves above 99%, 91%, and 98% accuracy in the QRS complex, P wave, and T wave detections, respectively. Experimental results are presented from the system prototype, in which the parallel delta modulator circuits are fabricated in IBM 0.13 mu m standard CMOS technology and the algorithms are implemented in a Xilinx Spartan-6 field programmable gate array (FPGA). The parallel delta modulators consume 720 nW at 1 kHz sampling rate with +/- 0.6 V power supply. The proposed system has the potential to be applied in future long-term wearable ECG recording devices.