Desenvolvimento e implementação de um elevador assistivo com sistema de fuso automatizado via relé programável

Abstract

The objective of this project is to develop a prototype of an assistive elevator with a lead screw system controlled by a programmable relay. The developed project is capable of facilitating use for people with low mobility or physical disabilities, increasing safety and accessibility on various levels of a building. The proposed system features a lead screw driven by a three-phase electric motor, which in turn is controlled by a frequency inverter, allowing the elevator to be controlled precisely and smoothly. The programmable relay is essential for the automation process as it supervises all devices, such as buttons and sensors, ensuring the elevator can perform all operations and function correctly. To ensure all procedures are operational and safe, this work will be based on the official and updated documents from the Brazilian Association of Technical Standards (ABNT). The proposed project is based on a real elevator with a height of four meters (4m) and a load capacity of 600kg, designed to accommodate a wheelchair user and a companion. The realization of the prototype is structured on a reduced scale, with structural parts printed using 3D technology, in order to validate all the automation of the project.Finally, the entire process of structuring, electrical, and computational development will be presented in this work.