基于RISC-V的多路光电容积脉搏波监测系统  

Multi-channel photoplethysmographic wave monitoring system based RISC-V

作　　者：岳文韬 张政[1] 高博[1] 龚敏[1] 彭玲[2] Yue Wentao;Zhang Zheng;Gao Bo;Gong Min;Peng Ling(Provincial Key Laboratory of Microelectronics Technology,School of Physics,Sichuan University,Chengdu 610065,China;West China Medical Center,Sichuan Medical University,Chengdu 610041,China)

机构地区：[1]四川大学物理学院微电子技术四川省重点实验室,四川成都610065 [2]四川大学华西医院,四川成都610041

出　　处：《电子技术应用》2023年第3期37-41,共5页Application of Electronic Technique

基　　金：国家自然科学基金(81971772)。

摘　　要：针对光电容积脉搏波(Photoplethysm ographic,PPG),基于RISC-V内核设计了一款多通道、实时PPG监测系统。该系统使用RISC-V架构的E203 IP作为低功耗内核,通过ICB总线挂接模拟前端和蓝牙控制模块。AFE4400模拟前端控制模块控制背靠背LED实现两路PPG信号采集,复用该模块分时处理来实现多路采集。蓝牙控制模块挂接到E203实现了通过蓝牙外设下达系统控制指令,之后上传PPG波至终端。该系统通过FPGA验证了22位双通道PPG信号物联网终端应用。A multi-channel real-time system is designed for monitoring photoplethysmographic(PPG) using RISC-V kernel. The system takes E203 IP of RISC-V architecture as the low-power core, which connects analog front-end module and Bluetooth control module through ICB bus. The analog front-end control module controls back-to-back LEDs to realize two-channel PPG signal acquisition. Multi-channel acquisition can be realized by reusing the analog front-end control module. The Bluetooth control module is connected to E203 to deliver system control commands, and then upload PPG data to the terminal. Finally, The FPGA system verifies the 22-bit dual-channel PPG signal Internet of Things terminal application.

关 键 词：光电容积脉搏波 RISC-V 串行外设接口总线 硬件设计语言建模 蓝牙 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]