Anais SIMPROIN 2021
Segue abaixo os artigos publicados nos anais do SIMPROIN
Prototyping an automated lawn mower
The elaboration of an external occupation project in both public and private areas is an important step in the civil construction process. Its objectives are to define how the integration between people and nature will occur, ensuring harmony, beauty of the environment and functionality of the place. Whether through water sources, vertical gardens, flowerbeds, walkways, pergolas or lawns, it is important to identify the best form of occupation of external areas, considering maintenance costs, features, preservation and conservation of the site. The IFPR, Paranavaí campus occupies approximately 90,000 m2, and approximately 12,000 m2 of this area is occupied by Batatais grass (Paspalum notatum) and about 44,000 m2 with Brachiaria (bovine pasture grass). The maintenance of the grass is carried out in an area of approximately 36,000 m2 at a cost of R$0.20/m2 per pruning operation. As a way to reduce the amounts allocated to the maintenance of lawns at the IFPR campus Paranavaí, this project aims to develop a lawn mower operated by remote control to assist in the mowing process. The propulsion system was developed using two 12 volt gearmotors to drive the lawn mower's drive wheels. The automation system consists of a 16-channel board commanded by a remote control. The electrical system is powered by a 12 volt, 45Ah battery, responsible for activating the gearmotors and starting the internal combustion engine. This motor has a nominal power of 6 HP and its function is to drive the cutting blade of the lawn mower.
Sizing calculations for a photovoltaic generator system
With the decrease in the height of rivers, the main electromotive source in Brazil is having a great reduction in its supply, causing an increase in the amount charged per kWh. With the electricity bill becoming more and more expensive, other alternative sources of energy are being sought, one of which is the installation of solar plants, which, in addition to using a renewable source, also generate a long-term financial return for the consumer. The objective of this work is to monitor the dimensioning of one of these plants, from the analysis of the energy bill, the dimensioning of a system to supply the demand and, finally, the calculation of the return on investment. Index Terms—Renewable Energies, Electrical Project, Econ- omy, Investment.
An improved version of the didactic computer for teaching digital eletronics and microprocessor concepts
In teaching microprocessors and microcontrollers, it is necessary to know the fundamentals of digital electronics and low-level languages(assembly). In general, this proves to be a great challenge for both those who teach and those who learn. In teaching, microcontrollers are usually used with all their peripherals already built in, and this usually does not require a very large level of abstraction from the student to be understood. To solve this problem, the following project aims to facilitate and make teaching this subject more fun, building the computer and its peripherals using only discrete components and integrated circuits (flip-flops, registers, logic gates, etc.). The proposed computer hardware was built and simulated in Digital
software.
Applying PID Control to a Buck Converter
Currently, one of the main focuses of any company or industry is the constant improvement of the performance, cost and quality of internal systems. Thus, automation is part of this improvement process and has become something indispensable
nowadays. Automation can solve many problems as well as offer innovative proposals. Control system is a technology dedicated achieve this type of automation, one of the most used controllers in the industry is the PID controller, as it is a simple control with easy application and cost efficient. Proportional, Integral and Derivative (PID) control comes from the sum of the transfer functions of each individual control. The PID control will be responsible for controlling the system’s response, comparing the value of the desired voltage and the output voltage, applying a compensating system if necessary. The system chosen to apply a PID control is the DC-DC (direct Current to direct Current) buck converter, which is a voltage lowering circuit, where this reduction occurs due to the switching circuit. This converter is applied to various electronic circuits of our daily routine, such as power supplies for portable devices (cell phones, tablets, laptops and others). This project proposes to apply a PID controller in a Buck DC-DC converter, aiming to improve the output control and validate the knowledge acquired during the course.software.
Compact Automated Irrigation System Using ESP32
Population growth and increased life expectancy have forced agriculture to become more technological in order to meet the growing demand for food. In this sense, the use of technologies related to the Internet of Things (IoT) has shown great promise, since it allows the implementation of improvements in agricultural technologies in order to improve productivity. From this, the present work presents a compact and low-cost irrigation system, controlled and monitored through the Internet, capable of performing automated irrigation in different types of crops.
Data Acquisition Study for a Baropodometer Using the MyRIO Embedded Platform
Baropodometry brings possible problems in human footsteps, mapping plantar pressure and helping to diagnose body posture. The baropodometer is composed of hardware and software, the FSR 402 was used in the tests, it is a flexible pressure sensor, it has variable resistive characteristics, being very widespread for animal and human gait application. This research aims to bring a possibility to apply a MyRIO platform to perform high-tech baropodometry.
Development of H Bridge for speed control compatible with MyRIO platform
The use of h-bridge drivers brings the possibility of controlling the rotation and direction of rotation of direct current motors. The bridge H developed has its turning direction switching controlled by two relays and the speed switching made by a mosfet with gate actuation at approximately 5V of the IRF640 model, using an LM741 amplifier for signal adaptation where a LabVIEW interface was used for the use of PWM. This research aims to bring a possibility to apply the MyRIO platform together with the LabVIEW programming language to control DC motors in a way with future changes opening the possibility of using step motors to design a robotic arm.
Edge Effect Analysis of Square Parallel Plates Capacitors Through the Finite Element Method and Perturbation Theory
Due to edge effects, real capacitors have capacitances that do not match the capacitance of ideal capacitors. In engineering projects that require accurate capacitance values, the use of the ideal formula is not recommended. Mathematical modeling and numerical methods applied in computers allow the simulation of several systems. In this work, perturbation theory is used as a mathematical tool, and the finite element method as a numerical method, to propose an equation capable of calculating the capacitance value of non-ideal capacitors.
Control theory applied with embedded systems allowed a great advance in industrial processes. With the application of sensors and microcontrollers, a physical quantity can be measured and controlled. This work presents the development of a PID controller applied to a heating plant. The development of the electronic circuit, the controller design and the experimental results are presented and discussed.