Tag Archives: prototype

xxx M.G. Morerira, G.A.S. Ferraz, B.D.S. Barbosa, E.M. Iwasaki, P.F.P Ferraz, F.A. Damasceno and G. Rossi
Design and construction of a low-cost remotely piloted aircraft for precision agriculture applications
Abstract |
Full text PDF (344 KB)

Design and construction of a low-cost remotely piloted aircraft for precision agriculture applications

M.G. Morerira¹, G.A.S. Ferraz¹*, B.D.S. Barbosa¹, E.M. Iwasaki¹, P.F.P Ferraz¹, F.A. Damasceno² and G. Rossi³

¹Federal University of Lavras, Department of Agricultural Engineering, University Campus, BR37.200-000, Lavras, Brazil
²Federal University of Lavras, Department of Engineering, University Campus, BR37.200-000, Lavras, Brazil
³University of Florence, Department of Agriculture, Food, Environment and Forestry (DAGRI), Via San Bonaventura, 13, IT50145 Florence, Italy
*Correspondence: gabriel.ferraz@ufla.br

Abstract:

This study aimed to construct a low cost RPA capable of recording georeferenced images. For the construction of the prototype of a quadcopter type RPA, only essential materials were used to allow stable flight. A maximum total weight of 2 kg was stipulated, including frame weight, electronic components, motors and cameras. The aircraft was programmed using a low-cost microcontroller widely used in prototyping and automation research. An electronic circuit board is designed to facilitate the connection of the microcontroller with the other components of the design. Specific software was used for flight control. The prototype was built successfully, being able to lift stable and controllable flight. However, we still need to acquire equipment and programming components capable of enabling autonomous images and flights. The final cost of the RPA was on average $ 427.00 on average 50% lower than the values found in the Brazilian ARP market ($ 772.81 to $ 1,288.00)

Key words:

, , ,




49–59 F.A. Damasceno, J.A. Osorio, C.E. Alves Oliveira, P.F.P. Ferraz and L.F. Brandão
Assessment of a low-cost solar water heating systems in farrowing facilities
Abstract |

Assessment of a low-cost solar water heating systems in farrowing facilities

F.A. Damasceno¹*, J.A. Osorio², C.E. Alves Oliveira¹, P.F.P. Ferraz¹ and L.F. Brandão³

¹Department of Engineering, Federal University of Lavras, BR37200-000 Lavras - Minas Gerais, Brasil
²University National of Colombia, Faculty of Agrarians Science, Department of Agricultural and Food Engineer, Calle 59 A N 63-20, CO050001 Medellín, Colombia
³Department of Engineering, Federal University of Ouro Preto, BR35400-000 Ouro Preto – Minas Gerais, Brasil
*Correspondence: flavio.damasceno@deg.ufla.br

Abstract:

The objective of this study was to develop a prototype solar heater using alternative materials and then to compare its thermal efficiency against that of two other commercial solar heating systems when heating the floor of piglet housing. To evaluate the thermal heaters, temperature sensors were installed in the inlet and outlet of each floor and the thermal reservoir. The results showed good performance, however the thermal efficiency of the alternative heater was lower than the conventional systems. However, due to the construction of this solar collector with alternative materials its cost was relatively low and its operation is easier than the other conventional heater, therefore this heater is a good alternative to use for small livestock producer.

Key words:

, , ,