ViPSN: Build a New World Without Battery

Release Time：2026-03-20Number of visits：10

Speaker：Yilin Wang

Location: SIST 1A-200

Time：20th Mar. 2026 16:00

Host: Prof. Junrui Liang

 

Abstract:

With the development of the IoT technology, everyday objects can be integrated into large-scale IoT systems. BF-IoT end devices eliminate wiring installation and battery replacement. These devices adopt EHs to scavenge energy from the ambient environment. However, the harvested energy is inherently limited. It cannot support the long-time operation of BF-IoT end devices. To address this challenge, we propose ViPSN-Gateway--a novel solution enabling uplink, downlink, and inter-node communication among \gls{bfiot} devices. To achieve communication when the receiver is not always online, ViPSN-Gateway adopts data forwarding and temporary storage strategies, along with a data-request mechanism. These approaches reduce more than 99.98% of energy consumption on receivers. To validate the ViPSN-Gateway design, we constructed a system composed of five BF-IoT devices (including HID input/output modules, sensors, and actuators) and an Internet platform built on Home Assistant. It supports both BLE and ESB protocols. The system demonstrates the effectiveness of the proposed communication solution. It also verifies the compatibility and scalability of the ViPSN-Gateway. Field tests show that BLE achieves 60 m communication with a 1–3 seconds latency. ESB realizes 60 m communication with a maximum 1 ms latency. Energy consumption experiments show that the proposed data forwarding and temporary storage strategies and data-request mechanism can almost eliminate the quiescent energy consumption on the BF-IoT end nodes. ViPSN-Gateway offers a flexible, compatible, and scalable communication solution for BF-IoT end devices.

Biography:

Yilin Wang received a B.E. degree in electrical engineering from Shanghai Ocean University, Shanghai, China, in 2022. He is now working towards his Ph.D. degree at ShanghaiTech University, China. His current research interests include energy harvesting, battery-free IoT, and embedded systems.