Browsing by Author "Alcantara, Carlos Vinicius Boduar de"
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- An interactive autonomous visitor guide robot in a university scenarioPublication . Alcantara, Carlos Vinicius Boduar de; Leitão, Paulo; Ricken, LucasService robots has seen advances with the use of Artificial Intelligence technologies, enabling the development of robots capable of interacting more naturally with humans. This dissertation presents the proposal and implementation of an autonomous service robot designed to act as an interactive guide in university environments, focusing on personalized interaction with users. The proposed architecture integrates multiple software and hardware modules, including a chatbot developed with the RASA platform, integration with an embedded Large Language Model (LLM), dynamic facial recognition with local updating, ROS-based navigation, and environmental perception with LiDAR sensors and RGB cameras. Furthermore, the system queries external APIs to provide contextual information, such as weather and class schedules. To evaluate the developed robot, tests were conducted with 25 users, who evaluated the user experience. The observed limitations were discussed as opportunities for improvement for future work. The presented architecture represents a relevant contribution to the field of service robots by proposing a reproducible, scalable, and user experience-centric approach.