Criação de aplicações para sistema de teste funcional com rastreabilidade para carregadores de celular

Abstract

This project addresses the growing need to guarantee the traceability and quality of cell phone chargers in a globalized market, where transparency in processes is fundamental. The main objective is to carry out electrical tests with traceability using QR code reading and programming using National Instruments' LabWindows/CVI software. The study begins with the contextualization of the problem, highlighting the importance of traceability to guarantee the quality and reliability of electronic products, such as cell phone chargers. The need to implement methods that speed up the testing process was observed, aiming to maximize production efficiency. The materials and methods used involve the use of LabWindows/CVI software, an ANSI C development environment specific to test and measurement applications. In addition, observations were carried out in the charger testing sector to identify gaps in the process and determine the best strategies to implement traceability. In the proposed process, the first step consists of reading the QR code on the ruler and chargers, organizing them in numerical sequence for recording in a .txt file. Next, the second step performs data collection, performs the necessary electrical tests, and generates a .csv file for local storage, along with an .xml file for recording in the company database. After the first test is completed, each charger undergoes an evaluation to verify if it has passed. If the charger passes the previous test, it is allowed to proceed to the next one. Otherwise, the system blocks further tests until the identified issue is resolved. Results include significant improvement in efficiency of the testing process, ensuring complete traceability of chargers and optimizing equipment production time.