Simulación de un sistema de control de stock para máquinas expendedoras de productos.

Abstract

This project involves the simulation of a stock control system for vending machines, to have a better inventory control remotely, without the need to physically go to the place of the vending machine to check if it has stock or not and without any idea of what kind of products are needed to supply it. The system was designed based on a series of requirements including the use of sensors, Arduino boards, SIM800L and GPS modules, I/O devices such as numeric keypad and LCD display, and finally the use of SMS messages as a means to send information about the vending machine stock. According to the requirements, the devices that are part of the system were properly selected. During the development of the project, a software design of the system was elaborated, with the help of certain simulation and circuit design programs; in addition to the elaboration of a program code that allows handling and interpreting all the actions performed by the system and where its operation is explained. The respective tests of the system were carried out to verify its proper operation. Finally, the conclusions and recommendations section describes how each of the objectives were met and proposals for improvement that can be applied and complement the project.