sensors Article Smart Assistive Architecture for the Integration of IoT Devices, Robotic Systems, and Multimodal Interfaces in Healthcare Environments Alberto Brunete 1,*,† , Ernesto Gambao 1,† , Miguel Hernando 1,† and Raquel Cedazo 2,† 1 Centre for Automation and Robotics (CAR UPM-CSIC), Universidad Politécnica de Madrid, 28006 Madrid, Spain 2 Department of Electrical, Electronical and Automatic Control Engineering and Applied Physics, Escuela Técnica Superior de Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid, 28012 Madrid, Spain * Correspondence:
[email protected] † These authors contributed equally to this work. Abstract: This paper presents a new architecture that integrates Internet of Things (IoT) devices, service robots, and users in a smart assistive environment. A new intuitive and multimodal interac- tion system supporting people with disabilities and bedbound patients is presented. This interaction system allows the user to control service robots and devices inside the room in five different ways: touch control, eye control, gesture control, voice control, and augmented reality control. The interac- tion system is comprised of an assistive robotic arm holding a tablet PC. The robotic arm can place the tablet PC in front of the user. A demonstration of the developed technology, a prototype of a smart room equipped with home automation devices, and the robotic assistive arm are presented. The results obtained from the use of the various interfaces and technologies are presented in the Citation: Brunete,A.; Gambao, E.; article. The results include user preference with regard to eye-base control (performing clicks, and Hernando, M.; Cedazo, R. Smart using winks or gaze) and the use of mobile phones over augmented reality glasses, among others.