A Passive Bidirectional BLE Tag Demonstrating Battery-Free

📋 论文概要

该论文提出了一种无电池的被动双向BLE标签，实现了平板/智能手机到标签、标签到平板/智能手机以及标签到标签三种通信模式。解决了传统IoT收发器功耗高达数毫瓦、需要电池或频繁充电的问题。

💡 主要创新点

• 首次实现被动双向BLE通信，无需电池即可支持三种通信模式。
• 利用商用BLE嵌入式设备（如平板、智能手机）作为网关，兼容现有硬件。
• 通过创新的电路设计实现了极低功耗，使无源标签能够完成双向数据传输。

🏷 关键词

📄 原文摘要

Tag-to-Tablet/Smartphone, and Tag-to-Tag Modes Ziyi Chang*1, Qijing Xiao*1,2, Weixiao Wang1,2, Yuxuan Luo1, Bo Zhao1 Zhejiang University, Hangzhou, China, 2Microaiot, Hangzhou, China *Equally Credited Authors (ECAs) 1 Wireless connectivity in IoT devices must be low power and compatible with the widelydeployed commodity hardware such as BLE-embedded tablets/smartphones. However, conventional IoT transceivers (TRXs) consume several milliwatts of active power, such as 4.1mW BLE TX and 3.6mW BLE RX [1]. As a result, most of the current IoT devices require either wall power, or bulky/frequently-recharged batteries (Fig. 31.5.1, top, first). Near-field communication (NFC) is compatible with smartphones, but the operating range is limited to less than 10cm, which hinders pragmatic deployment of most IoT applications (Fig. 31.5.1, top, second). Far-field radiative RFID realizes battery-less communication through tens of centimeters to several meters [2], but it can only be read

👥 作者与机构

Communication in Tablet/Smartphone-to-Tag,