# Design and Construction of a Portable IoT Station

## TL;DR

This paper describes a portable IoT station designed for synchronized data collection and easy integration with various systems.

## Contribution

The novel contribution is a portable, customizable IoT station that supports synchronized data streams across multiple communication protocols.

## Key findings

- The station uses IEC-compliant hardware and a programmable logic controller for seamless integration.
- Two distinct applications demonstrate the station's versatility in data publishing and visualization.
- The modular design supports future research and development of specialized algorithms.

## Abstract

This paper discusses the design and implementation of a portable IoT station. Communication and data synchronization issues in several installations are addressed here, making possible a detailed analysis of the entire system during its operation. The system operator requires a synchronized data stream, combining multiple communication protocols into one single time stamp. The hardware selected for the portable IoT station complies with the International Electrotechnical Commission (IEC) industrial standards. A short discussion regarding interface customization shows how easily the hardware can be modified so that it is integrated with almost any system. A programmable logic controller enables the Node-RED to be utilized. This open-source middleware defines operations for each global variable nominated in the Modbus register. Two applications are presented and discussed in this paper; each application has a distinct methodology utilized to publish and visualize the acquired data. The portable IoT station is highly customizable, consisting of a modular structure and providing the best platform for future research and development of dedicated algorithms. This paper also demonstrates how the portable IoT station can be implemented in systems where time-based data synchronization is essential while introducing a seamless implementation and operation.