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A 148-nW Reconfigurable Event-Driven Intelligent Wake-Up System for AIoT Nodes Us
一种148纳瓦可重构事件驱动智能唤醒系统,用于AIoT节点,显著降低功耗并支持多应用智能事件检测。
0.6V VDD, 148nW功耗, 1.68μW活动功耗, 99%识别精度
物联网智能唤醒低功耗事件驱动卷积神经网络
▸三级流水线事件驱动架构,通过级联触发大幅降低整体功耗
▸时钟自由脉冲即时变化率特征提取器,直接在时域处理异步脉冲
▸可重构特征提取器和CNN智能推理引擎,适应多种IoT事件检测
Abstract
This article presents a 148-nW always-on wake-up
system that drastically reduces the system power consumption
of Internet of Things (IoT) sensor nodes while oftentimes oper-
ating in random-sparse-event (RSE) scenarios. To significantly
reduce the long-term average (LTA) power consumption and
realize multiapplication and intelligent event detection, three
techniques are proposed: 1) In a three-stage pipelined event-
driven architecture, a frame generator and a convolutional neural
network intelli