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Data Communication Based on MQTT in a Polymer Extrusion Process

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Enhancing Bidirectional Modbus TCP ↔ RTU Gateway Performance: A UDP Mechanism and Markov Chain Approach.

Shuang Zhao¹, Qinghai Zhang¹, Qingjian Zhao¹

¹Shandong Key Laboratory of Space Debris Monitoring and Low-Orbit Satellite Networking, Qingdao University of Technology, Qingdao 266520, China.

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|July 12, 2025

Summary

This summary is machine-generated.

This study introduces an Advanced User Datagram Protocol (UDP) for Industrial Internet of Things (IIoT) gateways, reducing latency and improving reliability for Modbus communication.

Keywords:

AUDP IIoT Markov chain Modbus gateway TCP/UDP communication protocols real-time optimization reliability mechanism

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Area of Science:

Industrial Internet of Things (IIoT)
Network Protocols
Real-time Systems

Background:

Interconnection challenges in IIoT due to device and protocol diversity.
High overhead and latency issues with conventional Modbus TCP-RTU gateways.
Need for enhanced real-time communication and reliability in industrial networks.

Purpose of the Study:

To analyze User Datagram Protocol (UDP) transmission characteristics using Markov chain theory.
To propose an Advanced UDP (AUDP) protocol for improved industrial communication.
To design and validate a Modbus AUDP-RTU gateway for efficient bidirectional conversion.

Main Methods:

Application of Markov chain theory to analyze UDP transmission.
Development of the Advanced UDP (AUDP) protocol with CRC, retransmission, Transaction ID matching, and exponential backoff mechanisms.
Design of a lightweight Modbus AUDP-RTU gateway architecture.

Main Results:

The proposed Modbus AUDP-RTU gateway significantly reduces communication latency compared to Modbus TCP-RTU.
The gateway demonstrates higher reliability than standard Modbus UDP-RTU.
Experimental validation and Markov chain modeling confirm the performance improvements.

Conclusions:

The Advanced UDP protocol and AUDP-RTU gateway effectively address IIoT communication challenges.
The proposed solution offers a viable alternative for real-time, reliable industrial data transmission.
This work contributes to enhancing the efficiency and robustness of Industrial Internet of Things networks.