A RISC-V Based Open Hardware Platform for Always-On Wearable Smart Sensing

2019 IEEE 8th International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2019-06-13 DOI:10.1109/IWASI.2019.8791364

M. Eggimann, Stefan Mach, M. Magno, L. Benini

引用次数: 13

Abstract

We present a fully programmable ultra-low-power embedded platform that hosts an "electronic skin" (E-skin) arrays of tactile sensors with up to 64 channels, ECG/EMG sensors up to 8 channels, inertial sensors, and a Bluetooth Low Energy 5.0 module. The platform’s compute engine is a heterogeneous multi-core parallel ultra-low power (PULP) processor based on RISC-V, capable of delivering up to 2.5 GOPS, within a 55 mW power consumption envelope, which makes the platform ideal for battery-powered always-on operation. Experimental results show a peak of 38.3x energy efficiency increase (0.7 V, 85 MHz) compared to ARM-Cortex-M microcontrollers with similar power budgets.

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基于RISC-V的可穿戴智能传感开放硬件平台

我们提出了一个完全可编程的超低功耗嵌入式平台，该平台拥有一个“电子皮肤”(E-skin)阵列，其中包含多达64通道的触觉传感器，多达8通道的ECG/EMG传感器，惯性传感器和低功耗蓝牙5.0模块。该平台的计算引擎是一个基于RISC-V的异构多核并行超低功耗(PULP)处理器，能够在55兆瓦的功耗范围内提供高达2.5 GOPS，这使得该平台非常适合电池供电的始终在线操作。实验结果表明，与具有类似功率预算的ARM-Cortex-M微控制器相比，其峰值能效提高38.3倍(0.7 V, 85 MHz)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2019 IEEE 8th International Workshop on Advances in Sensors and Interfaces (IWASI)

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