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Session C2: Advances in High Accuracy Positioning

Transportation of RTCM3 Data via MQTT in onocoy's Dense and Global GNSS RTK Correction Network
Daniel Ammann, onocoy Association; Lucy Icking, Paulo Felicio, onocoy Services AG
Date/Time: Wednesday, Sep. 18, 4:00 p.m.

This paper explores the innovative use of the Message Queuing Telemetry Transport (MQTT) protocol by onocoy, a pioneering organization dedicated to establishing the world's densest GNSS (Global Navigation Satellite System) RTK (Real-Time Kinematic) correction network. The focus of this study is on the efficient transport of real-time RTCM3 GNSS single base correction data across a large-scale network, comprising up to 100,000 GNSS CORS (Continuously Operating Reference Stations), with a targeted user base of 1 million recipients.
MQTT, a lightweight and widely adopted publish-subscribe messaging protocol, is employed by onocoy to facilitate the seamless and scalable distribution of RTCM3 GNSS correction data. The paper delves into the unique challenges associated with architecting and managing a network of this magnitude and illustrates how MQTT plays a pivotal role in achieving high scalability and redundancy, ensuring that real-time correction data reaches a vast user base in a timely and reliable manner.
MQTT is the enabler for onocoy's overarching mission to establish the world's densest single base GNSS RTK correction network. This ambitious goal is pursued through the implementation of a DePIN (decentralized physical infrastructure network) ecosystem, integrating blockchain technology to enhance security, transparency, and trust.
By leveraging blockchain in the DePIN ecosystem, onocoy aims to establish a robust and decentralized infrastructure, ensuring the integrity of GNSS correction data while mitigating the risks associated with centralization. The synergy between MQTT and blockchain in the onocoy system sets the stage for a resilient and scalable network capable of meeting the demands of a million users relying on real-time GNSS correction data.
In conclusion, this paper provides insights into Onocoy's novel approach to GNSS correction data validation and distribution, emphasizing the critical role of MQTT in achieving large-scale scalability. The integration of blockchain within the DePIN ecosystem represents a strategic move towards establishing a highly secure and decentralized infrastructure, supporting Onocoy's vision to create the world's densest GNSS RTK correction network.

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