Construcción de un prototipo electromecánico para rehabilitación tras traumatismos de codo basado en la integración de sistemas de control, monitoreo y el Internet de las Cosas.

Abstract

This study describes the development process for constructing a prototype for elbow post-trauma rehabilitation in order to integrate control systems, monitoring and the internet of things. It was determined that elbow flexion and extension and wrist pronosupination and flexion are movements that make up rehabilitation protocol for elbow trauma and are thus requirements for the design of electromechanical equipment. The prototype was modeled using a CAD tool, SolidWorks was used for the case study and it was validated through static analysis. A Raspberry Pi3 was used as hardware elements of the system to provide support for the IT application, link to the IoT Remote IT platform and issue instructions to a microcontroller hosted on the Arduino UNO platform, which in turn was responsible for processing said received information to manage control signals to the electric actuator drivers, in this case two NEMA 23 motors and a NEMA 17 used to govern the prototype’s movement. Python was used to implement the graphical interface and load the control algorithms. It was possible to integrate LabVIEW and SolidWorks in an interface for remote monitoring of the rehabilitator. LabVIEW was used to acquire information from the IoT Remote IT platform and as a source of information for a 3D arm model mounted on SolidWorks as an animated resource to track the movements performed by the rehabilitator. Once the prototype was implemented and tested, correct functionality was obtained in the execution of movements, configuration from the graphic interface and remote monitoring. The specialist evaluated the prototype in terms of the patient’s position, rating it as acceptable.