📡 Communication Protocols
RS-485 multi-node, Modbus RTU/TCP, DLMS/COSEM, CAN, MQTT — reliable protocol design for constrained and field-deployed systems.
Overview
Deterministic, robust communication for resource-constrained and field-deployed embedded systems — RS-485 multi-node, Modbus RTU/TCP, DLMS/COSEM, CAN, and MQTT.
Challenge
Field systems usually fail at the communication layer first: electrical noise, dropped nodes, and timing jitter. Guaranteeing deterministic, tamper-evident messaging across multi-node networks under harsh or adversarial conditions is a high-impact open problem.
Approach
Where I've worked on this:
- Designed a custom RS-485 master-slave broadcast protocol for the EOD ROV — Best Paper, ICCIT 2024
- Built Modbus RTU/TCP stacks reused across industrial products
- Implemented DLMS/COSEM for advanced metering
Open questions I want to study: formal real-time delivery guarantees across multi-node field buses, and tamper-evidence under adversarial conditions.
Results
Direction: extend the RS-485 multi-node broadcast work toward a journal submission with formal timing and security analysis.
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