Renan Salles de Freitas

Idiomas

Áreas de atuação

Produções bibliográficas

• FREITAS, RENAN S. ; SILVA, GABRIEL A. C. ; SOARES, EDUARDO E. M. ; FERRÃO, ESTEVÃO F. ; COSTA, RAMON R. . State of the Art and Conceptual Design of Robotic Solutions for In Situ Hard Coating of Hydraulic Turbines. JOURNAL OF CONTROL, AUTOMATION AND ELECTRICAL SYSTEMS , v. 28, p. 105-113, 2017.

• FREITAS, R. S. ; FERRÃO, E. F. ; SILVA, G. A. C. ; SOARES, E. E. M. ; COSTA, R. R. . A ROBOTIC SYSTEM FOR IN SITU HYDROPOWER TURBINE HARD COATING. XXI Congresso Brasileiro de Automática - CBA2016 , v. XXI, p. 1331-1336, 2016.

• FREITAS, RENAN S. ; XAUD, MARCO F.S. ; MARCOVISTZ, IGHOR ; NEVES, ALEX F. ; FARIA, RAFAEL O. ; CARVALHO, GUILHERME P.S. ; HSU, LIU ; NUNES, EDUARDO V.L. ; PEIXOTO, ALESSANDRO J. ; LIZARRALDE, FERNANDO ; FREITAS, GUSTAVO ; COSTA, RAMON R. ; FROM, PAL ; GALASSI, MAURICIO ; DERKS, PETER W.J. ; RØYRØY, ANDERS . THE EMBEDDED ELECTRONICS AND SOFTWARE OF DORIS OFFSHORE ROBOT∗∗This work is supported primarily by Petrobras S.A. and Statoil Brazil Oil & Gas Ltda under contract COPPETEC 0050.0079406.12.9 (ANP-Brazil R&D Program), and in part by the Brazilian research agencies CNPq and FAPERJ.. IFAC-PapersOnLine , v. 48, p. 208-213, 2015.

• Alves, Daniel S. F. ; Soares, E. Elael M. ; Strachan, Guilherme C. ; Carvalho, Guilherme P. S. ; Xaud, Marco F. S. ; Couto, Marcos V. B. ; Mendon?a, Rafael M. ; FREITAS, RENAN S. ; Santos, Thiago M. ; Gon?alves, Vanessa C. F. ; Mourelle, Luiza M. ; Nedjah, Nadia ; Maculan, Nelson ; Lima, Priscila M. V. ; Fran?a, Felipe M. G. . A Swarm Robotics Approach to Decontamination. In: Raúl Aquino Santos, Omar Lengerke, Arthur Edwards. (Org.). Robotics. 1ed.: IGI Global, 2012, v. 1, p. 955-969.

• FREITAS, RENAN S. ; SOARES, EDUARDO E. M. ; COSTA, RAMON R. ; CARVALHO, BRENO B. . High precision trajectory planning on freeform surfaces for robotic manipulators. In: 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2017, Vancouver. 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2017. p. 3695.

Projetos de pesquisa

• 2018 - Atual

  SQUIDBOT I - Inspection of Hydrocarbon Tanks, Descrição: Squidbot is an AUV in development that operates in confined areas providing inspection and non-destructive testing. It is self-contained and operates without umbilicals. The AUV shall be intrinsically safe for inspection of in-service (liquid filled) reservoirs in atex-rated environments. SquidBot is a submersible robot, able to avoid and overcome obstacles, and thus cover a large area of the inspected reservoir. The robot has instruments to perform the non-destructive internal tests, such as the measurement of wall thicknesses, and it has a cleaning tool to remove sludge when required by the chosen NDT inspection tools. The first part of the project comprises the conceptual design: hardware (electrical, mechanical and electronics), and software: robot localization, planning, control, mapping and simulation.. , Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Renan Salles de Freitas - Coordenador / Sylvain Joyeux - Integrante., Financiador(es): Repsol Brasil - Auxílio financeiro.

• 2016 - 2018

  EMMA II - In situ metallization of hydroelectric turbine blades, Projeto certificado pela empresa ENERGIA SUSTENTAVEL DO BRASIL S.A. em 20/06/2017., Descrição: Hydroelectric turbines deal with complex water flows and turbulence caused by early erosion of the blades. This is a major financial risk, as the production lost while stopping a turbine can cost more than a million reais (300k USD). Moreover, if the blade damage is too high, it would need to replaced which is a major undertaking. To avoid damage the blades are hard-coated with an alloy that is resistant to the abrasion process. This is applied before the turbine is mounted in the powerplant. Unfortunately, some powerplants such as Jirau (ESBR), re-applying the coating would require to unmount the turbine which is a very time-consuming task. The EMMA project is a robotic solution to mitigate the problem and execute the hard coating of damaged blades in situ. The second fase of this project comprises further development of the system and field tests.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Renan Salles de Freitas - Integrante / Eduardo Elael de Melo Soares - Integrante / Ramon Romankevicius Costa - Coordenador / Gabriel Alcantara Costa Silva - Integrante / Estevão Froes Ferrão - Integrante / Julia Ramos Campana - Integrante.

• 2015 - 2016

  EMMA - Methodology for in situ hard coating of hydraulic turbine blades, Descrição: The first stage of this R&D project is a technical feasibility study of a robotic system to perform thermal spray coating of in situ turbines blades. The project aims to significantly reduce the maintenance time of the coating because it is carried out in the confined environment of the turbine and, therefore, there is no need to disassemble it.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Graduação: (2) / Especialização: (0) / Mestrado acadêmico: (0) / Mestrado profissional: (0) / Doutorado: (0) . , Integrantes: Renan Salles de Freitas - Integrante / Eduardo Elael de Melo Soares - Integrante / Ramon Romankevicius Costa - Coordenador / Gabriel Alcantara Costa Silva - Integrante / Estevão Froes Ferrão - Integrante / Julia Ramos Campana - Integrante.

• 2013 - 2016

  DORIS - Offshore Facilities Monitoring Robots, Descrição: DORIS is a R&D project that aims the development of technologies for remote supervision, diagnosis and data acquisition for offshore facilities. The system is composed of a mobile robot carrying different sensors monitored by signal processing algorithms, which perform environment data analysis and anomaly identification. The system will be able to detect abandoned objects, leakages, non-authorized people, fires and reading of displays. The data can be accessed on-line, allowing the processing to occur in real-time. The whole system will be validated at CENPES facilities, which are quite similar to a real offshore scenario.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (6) Doutorado: (1) . , Integrantes: Renan Salles de Freitas - Integrante / Ramon Romankevicius Costa - Coordenador / Liu Hsu - Integrante / Fernando Lizarralde - Integrante / Eduardo Vieira Leão Nunes - Integrante.

• 2013 - 2015

  ROSA - Instrumentation of Stoplogs in Hydroelectric Powerplants, Descrição: When inspection and maintenance is needed on hydroelectric powerplant turbines, operators need to close the water flow. This is done in different ways that depend on the type of power plant. A common method is to use stoplogs. Stoplogs are massive metallic gates that are slid in a rail that is embedded at the mouth of the turbine tunnel. The goal of ROSA is to anticipate failures in the operation of the fisher beam caused by the accumulation of sediments or organic material that may be disrupting the stacking of the stoplogs. The ROSA is an embedded electronics with sensors and sonar able to detect issues that may block the stacking.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (1) . , Integrantes: Renan Salles de Freitas - Integrante / Eduardo Elael de Melo Soares - Integrante / Ramon Romankevicius Costa - Coordenador / Gabriel Alcantara Costa Silva - Integrante / Julia Ramos Campana - Integrante.

• 2011 - 2011

  A Swarm Robotics Approach to Decontamination, Descrição: Many interesting and difficult practical problems need to be tackled in the areas of firefighting, biological and/or chemical decontamination, tactical and/or rescue searches, and Web spamming, among others. These problems, however, can be mapped onto the graph decontamination problem, also called the graph search problem. Once the target space is mapped onto a graph G(N,E), where N is the set of G nodes and E the set of G edges, one initially considers all nodes in N to be contaminated. When a guard, i.e., a decontaminating agent, is placed in a node i ? N, i becomes (clean and) guarded. In case such a guard leaves node i, it can only be guaranteed that i will remain clean if all its neighboring nodes are either clean or clean and guarded. The graph decontamination/search problem consists of determining a sequence of guard movements, requiring the minimum number of guards needed for the decontamination of G. This project presents a novel swarm robotics approach to firefighting, a conflagration in a hypothetical apartment ground floor. The mechanism has been successfully simulated on the Webots platform, depicting a firefighting swarm of e-puck robots.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Graduação: (5) . , Integrantes: Renan Salles de Freitas - Coordenador / Eduardo Elael de Melo Soares - Integrante / Guilherme Sales de Carvalho - Integrante / Felipe Maia Galvão França - Integrante / Guilherme Cesario Strachan - Integrante / Marcos dos Santos Xaud - Integrante / Thiago Monte dos Santos - Integrante.

• 2011 - 2011

  Processamento de imagem e Reconhecimento de formas, Descrição: Desenvolvimento de um software de reconhecimento de formas para uma mira laser automática. Utilização de Visual Studio 2010 e microcontroladores Arduino.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Graduação: (3) . , Integrantes: Renan Salles de Freitas - Coordenador / Marcos Vinicius Bentes do Couto - Integrante / Guilherme Sales de Carvalho - Integrante / Ivanovich Lache Salcedo - Integrante.

• 2008 - 2010

  Integrando as abordagens Top-down e bottom-up na operação de adição de antecedentes em revisão de teorias de primeira ordem, a partir de exemplos., Descrição: Desenvolver o sistema de geração de teorias BETH no sistema de revisão de teorias FORTE a fim de melhorar o desempenho. Utilização da linguaguem de programação PROLOG.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Graduação: (2) / Doutorado: (2) . , Integrantes: Renan Salles de Freitas - Integrante / Gerson Zaverucha - Coordenador / Ana Luisa Duboc - Integrante.

• 2007 - 2007

  Cubo Mágico 3D com Solucionador, Descrição: Desenvolvimento de um programa solucionador e interface 3D, na linguagem C++, de um Cubo Mágico.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Renan Salles de Freitas - Coordenador / Eduardo Elael de Melo Soares - Integrante / Priscila Machado Vieira Lima - Integrante.