ChatTracer: Large Language Model Powered Real-time Bluetooth Device Tracking System

Fuente: arXiv
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Main Authors: Wang, Qijun, Zhang, Shichen, Song, Kunzhe, Zeng, Huacheng
Format: Preprint
Published: 2024
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author Wang, Qijun
Zhang, Shichen
Song, Kunzhe
Zeng, Huacheng
author_facet Wang, Qijun
Zhang, Shichen
Song, Kunzhe
Zeng, Huacheng
contents Large language models (LLMs) have transformed the way we interact with cyber technologies. In this paper, we study the possibility of connecting LLM with wireless sensor networks (WSN). A successful design will not only extend LLM's knowledge landscape to the physical world but also revolutionize human interaction with WSN. To the end, we present ChatTracer, an LLM-powered real-time Bluetooth device tracking system. ChatTracer comprises three key components: an array of Bluetooth sniffing nodes, a database, and a fine-tuned LLM. ChatTracer was designed based on our experimental observation that commercial Apple/Android devices always broadcast hundreds of BLE packets per minute even in their idle status. Its novelties lie in two aspects: i) a reliable and efficient BLE packet grouping algorithm; and ii) an LLM fine-tuning strategy that combines both supervised fine-tuning (SFT) and reinforcement learning with human feedback (RLHF). We have built a prototype of ChatTracer with four sniffing nodes. Experimental results show that ChatTracer not only outperforms existing localization approaches, but also provides an intelligent interface for user interaction.
format Preprint
id arxiv_https___arxiv_org_abs_2403_19833
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle ChatTracer: Large Language Model Powered Real-time Bluetooth Device Tracking System
Wang, Qijun
Zhang, Shichen
Song, Kunzhe
Zeng, Huacheng
Networking and Internet Architecture
Artificial Intelligence
Large language models (LLMs) have transformed the way we interact with cyber technologies. In this paper, we study the possibility of connecting LLM with wireless sensor networks (WSN). A successful design will not only extend LLM's knowledge landscape to the physical world but also revolutionize human interaction with WSN. To the end, we present ChatTracer, an LLM-powered real-time Bluetooth device tracking system. ChatTracer comprises three key components: an array of Bluetooth sniffing nodes, a database, and a fine-tuned LLM. ChatTracer was designed based on our experimental observation that commercial Apple/Android devices always broadcast hundreds of BLE packets per minute even in their idle status. Its novelties lie in two aspects: i) a reliable and efficient BLE packet grouping algorithm; and ii) an LLM fine-tuning strategy that combines both supervised fine-tuning (SFT) and reinforcement learning with human feedback (RLHF). We have built a prototype of ChatTracer with four sniffing nodes. Experimental results show that ChatTracer not only outperforms existing localization approaches, but also provides an intelligent interface for user interaction.
title ChatTracer: Large Language Model Powered Real-time Bluetooth Device Tracking System
topic Networking and Internet Architecture
Artificial Intelligence
url https://arxiv.org/abs/2403.19833