Desenvolvimento de um robô para a automação de uma cortina por meio do comando de voz via echo dot

Abstract

The “domótica” is an area of robotics focused on home automation that has seen technological advances so that it is possible to find several devices on the market ready for do-it-yourself enthusiasts. However, the vast majority of these devices have standardized models for their own platform and little flexibility for complex and personalized projects. Therefore, it was proposed in this work to bring to the academic environment, especially in electronic and telecommunications engineering degrees, the application of a subject that can unite the two areas of the course with the use of electronics applied to wireless communication. As a result, a robot was developed with the function of opening or closing curtain rods using voice commands via the Echo Dot Alexa personal assistant, or smartphone, using platforms such as the Blynk app and the VoiceFlow software. The structure was made up of three compartments, coupled and printed in 3D, with an ultrasonic sensor fixed to the top to measure the distance from the wall, along with the motor, gears and bearing. For the prototype to function properly, it was necessary for all components to be interconnected and communicate appropriately with the software used. Finally, different versions of the robot were created, each aiming to evaluate essential parameters. The initial version focused on validating the hardware and software, while the final version focused on adjustments based on batteries of tests in the first version. These modifications resulted in improvements in dynamic performance, with a 150% increase in opening and closing speed, as well as structural and thermal performance of the system, with a 40.6% decrease in temperature after operations, culminating in an optimized solution for the robot in its final version.