Abstract
Digital twins are becoming popular in a wide range of industries for the monitoring, control, and optimization of physical objects, processes, and systems. Its growing demand is related to its potential to improve efficiency, reduce costs and increase safety in different applications. As a result, a variety of approaches, modeling processes, technologies, and tools have been used to develop and deploy digital twins. The choice of which to use often depends on the specific application area, case study, available resources, and expertise. This paper explores the idea of using the digital twin concept applied to power wheelchair systems, to supervise and improve their operation and maintenance. In particular, it focuses on data flow and connectivity within the digital twin, proposing an IoT and cloud-based data exchange to enable efficient cyber-physical connection and easy data management. For this work, a small-scale prototype of a power wheelchair was built with some sensors and actuators interfaced with a microcontroller, and the data exchange with a ROS-based virtual entity was performed via cloud under the MQTT protocol.
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