Nano-Watt Power Management and Vibration Sensing on a Dust-Size Batteryless Sensor Node for Ambient Intelligence Applications

📋 论文概要

该论文提出了一种尘埃大小的无电池传感器节点，实现了纳瓦级的功率管理和振动传感，解决了环境智能应用中传感器节点微型化和免维护的难题。

💡 主要创新点

• 首次在尘埃尺寸（数立方毫米）上集成纳瓦级功率管理电路，支持超低功耗运行。
• 结合振动能量采集与传感功能，实现了自供电的振动检测，无需外部电源或电池。
• 整体系统设计实现极小型化，适合大规模部署于环境智能场景。

🏷 关键词

📄 原文摘要

preventing the realization of dust-size battery-less sensor nodes are reported. Sensor networks deploying large numbers of nodes are anticipated for “ambient intelligence” [1]. For such networks, the sensor nodes should be miniaturized to the size of dust and be maintenance-free because battery-powered matchboxsized nodes would be difficult to distribute in large numbers (100 to 1000, for instance) in rooms, and replacing the batteries would be very time-consuming. When the size of a power source is miniaturized to a few mm3, generated power is lowered to the nano-watt-level according to energy density limitations [2]. When the generated power is smaller than the power used for radio, sensor nodes have to accumulate energy [1]. The basic concept of a sensor node with

👥 作者与机构

Toshishige Shimamura, Mamoru Ugajin, Kenji Suzuki, Kazuyoshi Ono,

Norio Sato, Kei Kuwabara, Hiroki Morimura, Shin’ichiro Mutoh NTT, Kanagawa, Japan Nanowatt-power circuit techniques that could overcome the critical bottlenecks