A Decentralized Context Broker Using Byzantine Fault Tolerant Consensus

Aswin Karthik Ramachandran Venkatapathy, Michael ten Hompel

Abstract


A context broker is a reliable message-relaying service used to connect devices by integrating all device protocols and communication methods, and reliably transporting messages while isolating data from other application service layers and networking complexities. A highly scalable decentralized context broker stack is composed of three layers—starting with a peer-to-peer network connecting a byzantine fault-tolerant (i.e., blockchain-based) consensus protocol—and it manages the communication using a web-socket streaming protocol as interface to other applications. This paper presents such a concept for a decentralized context broker stack for intercommunication between heterogeneous materials handling systems, and deploys the stack as proof-of-concept using ROS-based robots in a logistics scenario.


Keywords


decentralized consensus; context broker; industry 4.0

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References


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DOI: https://doi.org/10.5195/ledger.2019.173

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Copyright (c) 2019 Aswin Karthik Ramachandran Venkatapathy, Michael ten Hompel

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