A Low-Power Photoplethysmogram-Based Heart Rate Sensor Using Heartbeat Locked Loop

被引：34

作者：

Lee, Jinseok ^{[1
,2
]}

Jang, Do-Hun ^{[1
,3
]}

Park, Sujin ^{[1
]}

Cho, SeongHwan ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Elect Engn, Daejeon 34141, South Korea

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Samsung Elect, Hwaseong 18448, South Korea

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2018年 / 12卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Heartbeat locked loop (HBLL); photoplethysmogram (PPG); LED power reduction; heart rate sensor; low power sensor; windowing technique; TIME;

D O I：

10.1109/TBCAS.2018.2876671

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In this paper, we present an ultralow power heart rate (HR) monitoring photoplethysmography (PPG) sensor using a heartbeat locked loop (HBLL). The HBLL generates a narrow window that turns on the LED and analog-front-end only when a peak is expected in the PPG signal. The prototype PPG sensor implemented in 0.18 mu m CMOS has an effective duty-cycle of 0.01% and consumes only 43.4 mu W at a HR of 60 b/m, which is the lowest power consumption compared with previous state-of-the-art PPG sensors. The HR error of the proposed sensor is less than 2.1 b/m for HR below 180 b/m.

引用

页码：1220 / 1229

页数：10

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