Frederico Miguel do Ceu Marques dos Santos

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Frederico Miguel do Ceu Marques dos Santos


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https://researchid.co/fredericosantos
29

Scopus Publications

964

Scholar Citations

15

Scholar h-index

22

Scholar i10-index

Scopus Publications

  • Development of a Biomechanical System for Rehabilitation Purposes of Bedridden Patients with Prolonged Immobility – Prototype and Preliminary Results
    Luis Roseiro, Tomás Ribeiro, Marco Silva, Frederico Santos, Alexandra André, et al.
    Lecture Notes in Networks and Systems, 2024
  • Design of a Customized Rehabilitation Device for Patients with Prolonged Immobility Syndrome
    C. Malça, T. Ribeiro, M. Silva, F. Santos, R. Bernardes, et al.
    Lecture Notes in Bioengineering, 2023
  • Pre-clinical Study of a Customized Rehabilitation Device Prototype for Patients with Immobility Syndrome
    T. Ribeiro, L. Roseiro, M. Silva, F. Santos, R. Bernardes, et al.
    Mechanisms and Machine Science, 2023
  • Automatic velocity measurement system applied to elevator overspeed governors
    Marco Tomé, Pedro Beirão, Luis Roseiro, Frederico Santos
    Building Services Engineering Research and Technology, 2022
    All around the world, modern elevators transport safely and comfortably millions of passengers and freight each day. Since modern elevators emerged at the beginning of the 19th century, several advances have risen in this transportation system. Among them, safety conditions were significantly improved. Therefore, modern elevators must be equipped with safety protection systems to assure safety conditions and avoid accidents. An overspeed governor is one of the components of such a safety system. It acts as a stopping mechanism when the elevator car reaches an excessive velocity, known as tripping speed. When the tripping speed is reached, the overspeed governor is mechanically locked and halts the rope, thus stopping the elevator car. This paper describes the development of a new measuring system able to measure the trigger velocity of an overspeed governor with the help of a graphical interface available on a mobile electronic device (smartphone or tablet). Practical application: A new overspeed governor velocity measuring system uses a mobile electronic device for non-contact velocity measurement. This new process may replace the inaccurate measuring system currently employed by maintenance technicians, thus increasing its reliability. The main objective consists of rigorously testing the operation of overspeed governors. The developed system guarantees the automatic execution of the test under several anomalous operating situations, thus allowing the user to have real-time access to the test data obtained through a graphical interface available on a mobile electronic device.
  • Specific topologies and circuits: challenges in low power
    Pedro Amaro, Frederico Santos
    Encyclopedia of Electrical and Electronic Power Engineering Volumes 1 3, 2022
  • Empirical Assessment of the Long-Term Impact of an Embedded Systems Programming Requalification Programme
    João Cunha, João Durães, Ana Alves, Fernanda Coutinho, Jorge Barreiros, et al.
    Information Switzerland, 2022
    Digital transformation has increased the demand for skilled Information Technology (IT) professionals, to an extent that universities cannot satisfy it with newly graduated students. Furthermore, the economical downturn has created difficulties and scarcity of opportunities in other areas of activity. This combination of factors led to the need to consider requalification programmes that enable individuals with diverse specialisations and backgrounds to realign their careers to the IT area. This has led to the creation of many coding bootcamps, providing intensive full-time courses focused on unemployed people or unhappy with their jobs, and individuals seeking a career change. A multidisciplinary group of higher education teachers, in collaboration with several industry stakeholders, have designed and promoted an embedded systems programming course, using an intensive project-based learning approach comprising 6 months of daylong classes and a 9 months internship. Having finished two editions of the programme, a questionnaire was presented to the students that finished successfully, in order to evaluate the long-term benefits to graduates and companies. This paper presents a brief discussion of the programme organisation and pedagogical methodologies, as well as the results of the questionnaire, conducted following a Goal–Question–Metric (GQM) approach. The results demonstrate very positive outcomes, both for graduates and companies.
  • Reconfiguring TDMA Communications for Dynamic Formation of Vehicle Platoons
    Aqsa Aslam, Frederico Santos, Luis Almeida
    IEEE International Conference on Emerging Technologies and Factory Automation ETFA, 2020
    Platooning is a promising concept used within the Intelligent Transportation System to increase efficiency and safety of road transportation. It is based on periodically sharing the kinematic status of the platoon members to allow reducing inter-vehicle distances in a safe way. This coordination is automatic and depends heavily on the wireless channel. A common technique to improve the channel properties is to use Time-Division Multiple Access (TDMA) that organizes the access to the wireless medium in slots assigned exclusively to each vehicle. However, while platoons are physical and dynamic, the corresponding dynamic reconfiguration of a logical TDMA frame is non-trivial. In this paper we address this Cyber-Physical problem resorting to the RA-TDMAp protocol to track the dynamics of a platoon, specifically joining, merging and leaving. In our solution, we include an adequate admission control block, to verify whether joining or merging can be accepted, and we present the state-machine that handles the reconfiguration process. We validate our TDMA reconfiguration mechanism with simulations using the Plexe/Vein/OMNeT++ framework. We show the effectiveness of the proposed mechanisms which ensures a synchronized start of the platoon control with the TDMA frame reconfiguration.
  • Challenges and Solutions from an Embedded Programming Bootcamp
    J. Amaro, J. Barreiros, F. Coutinho, J. Durães, Frederico Santos, et al.
    Openaccess Series in Informatics, 2020
    Due to the proliferation of IT companies developing web and mobile applications, computer programmers are in such high demand that universities can’t satisfy it with newly graduated students. In response, some organisations started to create coding bootcamps, providing intensive full-time courses focused on unemployed people or individuals seeking for a career change. There is, however, a different set of skills that is becoming increasingly required, but is not addressed by those courses: embedded programming. In fact, the Internet of Things is connecting every device to the internet, thus making knowledge on hardware and C/C++ programming very relevant skills. A group of computer science and electrical engineering university teachers, in collaboration with several industry stakeholders, have promoted an embedded systems programming course in C and C++. This course is based on an intensive project-based approach comprising 6 months of daylong classes followed by 9 months of paid internships. After two editions, thirty embedded programmers, with no relevant previous programming experience, have been placed with the partners’ working force. In this paper, the course organisation and pedagogical methodologies are described. Problems, challenges and adopted solutions are presented and analysed. We conclude that in spite of the intense rhythm and demanding nature of the subject matter, it is possible to find the structure and solutions that keep students engaged and motivated throughout the course, allowing them to gain the required competences and successfully transition into a new career path.
  • Empirical performance models of MAC protocols for cooperative platooning applications
    Aqsa Aslam, Pedro M. Santos, Frederico Santos, Luís Almeida
    Electronics Switzerland, 2019
    Vehicular ad-hoc networks (VANET) enable vehicles to exchange information on traffic conditions, dynamic status and localization, to enhance road safety and transportation efficiency. A typical VANET application is platooning, which can take advantage of exchanging information on speed, heading and position to allow shorter inter-vehicle distances without compromising safety. However, the platooning performance depends drastically on the quality of the communication channel, which in turn is highly influenced by the medium access control protocol (MAC). Currently, VANETs use the IEEE 802.11p MAC, which follows a carrier sense multiple access with collision avoidance (CSMA/CA) policy that is prone to collisions and degrades significantly with network load. This has led to recent proposals for a time-division multiple access (TDMA)-based MAC that synchronize vehicles’ beacons to prevent or reduce collisions. In this paper, we take CSMA/CA and two TDMA-based overlay protocols, i.e., deployed over CSMA/CA, namely PLEXE-slotted and RA-TDMAp, and carry out extensive simulations with varying platoon sizes, number of occupied lanes and transmit power to deduce empirical models that provide estimates of average number of collisions per second and average busy time ratio. In particular, we show that these estimates can be obtained from observing the number of radio-frequency (RF) neighbours, i.e., number of distinct sources of the packets received by each vehicle per time unit. These estimates can enhance the online adaptation of distributed applications, particularly platooning control, to varying conditions of the communication channel.
  • Open IoT architecture for continuous patient monitoring in emergency wards
    Carlos Pereira, João Mesquita, Diana Guimarães, Frederico Santos, Luis Almeida, et al.
    Electronics Switzerland, 2019
    Due to multiple reasons, emergency wards can become overloaded with patients, some of which can be in critical health conditions. To improve the emergency service and avoid deaths and serious adverse events that could be potentially prevented, it is mandatory to do a continuous monitoring of patients physiological parameters. This is a good fit for Internet of Things (IoT) technology, but the scenario imposes hard constraints on autonomy, connectivity, interoperability, and delay. In this paper, we propose a full Internet-based architecture using open protocols from the wearable sensors up to the monitoring system. Particularly, we use low-cost and low-power WiFi-enabled wearable physiological sensors that connect directly to the Internet infrastructure and run open communication protocols, namely, oneM2M. At the upper end, our architecture relies on openEHR for data semantics, storage, and monitoring. Overall, we show the feasibility of our open IoT architecture exhibiting 20–50 ms end-to-end latency and 30–50 h sensor autonomy at a fraction of the cost of current non-interoperable vertical solutions.
  • Wearable Glove Interaction with Robots
    N. M. Fonseca Ferreira, Marco Silva, Victor D.N. Santos, Frederico Miguel Santos, J. Candido B. Santos, et al.
    2019 International Conference on Engineering Applications Icea 2019 Proceedings, 2019
  • Project-based learning methodology for robotics education
    Victor D. N. Santos, Nuno Miguel Fonseca Ferreira, J. Cândido B. Santos, Frederico Miguel Santos, Fernando D. Moita, et al.
    Communications in Computer and Information Science, 2019
  • Education with Robots Inspired in Biological Systems
    Nuno M. Fonseca Ferreira, Fernando Moita, Victor D. N. Santos, João Ferreira, João Cândido Santos, et al.
    Advances in Intelligent Systems and Computing, 2019
  • Assessing the ESP8266 WiFi module for the Internet of Things
    Joao Mesquita, Diana Guimaraes, Carlos Pereira, Frederico Santos, Luis Almeida
    IEEE International Conference on Emerging Technologies and Factory Automation ETFA, 2018
  • Feasibility of Gateway-Less IoT E-Health Applications
    Carlos Pereira, Diana Guimaraes, Joao Mesquita, Frederico Santos, Luis Almeida, et al.
    2018 European Conference on Networks and Communications Eucnc 2018, 2018
  • Impact of Platoon Size on the Performance of TDMA-Based MAC Protocols
    Aqsa Aslam, Luis Almeida, Frederico Santos
    2018 IEEE Globecom Workshops GC Wkshps 2018 Proceedings, 2018
  • A flexible TDMA overlay protocol for vehicles platooning
    Aqsa Aslam, Luis Almeida, Frederico Santos
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2018
  • Using RA-TDMA to support concurrent collaborative applications in VANETs
    Aqsa Aslam, Luis Almeida, Frederico Santos
    17th IEEE International Conference on Smart Technologies Eurocon 2017 Conference Proceedings, 2017
  • Structuring communications for mobile cyber-physical systems
    Luis Almeida, Frederico Santos, Luis Oliveira
    Internet of Things, 2016
  • Comparing adaptive TDma against a clock synchronization approach
    Luis Almeida, Frederico Santos, Luis Oliveira
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2014
  • A loose synchronisation protocol for managing RF ranging in mobile Ad-Hoc Networks
    Luis Oliveira, Luis Almeida, Frederico Santos
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2012
  • Communicating among robots in the RoboCup Middle-Size League
    Frederico Santos, Luís Almeida, Luís Seabra Lopes, José Luís Azevedo, M. Bernardo Cunha
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2010
  • Advances in the electric vehicle project-VEIL used as a modular platform for research and education
    24th International Battery Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition 2009 Evs 24, 2009
  • A real-time distributed software infrastructure for cooperating mobile autonomous robots
    2009 International Conference on Advanced Robotics Icar 2009, 2009
  • A web-based monitoring approach for power systems in industrial plants
    Joao P. Trovao, Frederico M. Santos, Marco J. Silva, Humberto M. Jorge
    IEEE International Symposium on Industrial Electronics, 2008
  • Self-configuration of an adaptive TDMA wireless communication protocol for teams of mobile robots
    Frederico Santos, Luis Almeida, Luis Seabra Lopes
    IEEE International Conference on Emerging Technologies and Factory Automation ETFA, 2008
  • A modular control architecture for a small electric vehicle
    F. Santos, J. Trovao, A. Marques, P. Pedreiras, J. Ferreira, et al.
    IEEE International Conference on Emerging Technologies and Factory Automation ETFA, 2006
  • Enhancing the reactivity of the vision subsystem in autonomous mobile robots using real-time techniques
    Paulo Pedreiras, Filipe Teixeira, Nelson Ferreira, Luís Almeida, Armando Pinho, et al.
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2006
  • Coordinating distributed autonomous agents with a real-time database: The GAMBADA project
    Luis Almeida, Frederico Santos, Tullio Facchinetti, Paulo Pedreiras, Valter Silva, et al.
    Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics, 2004

RECENT SCHOLAR PUBLICATIONS

  • The impacts of AI and automation on human resource management-systematic review [J]
    F Santos, A Pereira, A Shanches, D Crespo, H Pala
    Brazilian Journal of Development 11 (2), e78003 , 2025
    2025
    Citations: 5
  • Plasma mutation profile of precursor lesions and colorectal cancer using the Oncomine Colon cfDNA Assay
    R MBd, S Wd, AC de Carvalho, AB Lima, MT Reis, F Santos, RM Reis, ...
    2024
  • Pre-clinical study of a customized rehabilitation device prototype for patients with immobility syndrome
    T Ribeiro, L Roseiro, M Silva, F Santos, R Bernardes, R Cardoso, ...
    International Workshop on Medical and Service Robots, 90-98 , 2023
    2023
    Citations: 1
  • Design of a customized rehabilitation device for patients with prolonged immobility syndrome
    C Malça, T Ribeiro, M Silva, F Santos, R Bernardes, A Cruz, W Xavier, ...
    Congress of the Portuguese Society of Biomechanics, 207-217 , 2023
    2023
    Citations: 1
  • Development of a Biomechanical System for Rehabilitation Purposes of Bedridden Patients with Prolonged Immobility–Prototype and Preliminary Results
    L Roseiro, T Ribeiro, M Silva, F Santos, A André, R Durães, W Xavier, ...
    World Conference on Information Systems and Technologies, 439-446 , 2023
    2023
    Citations: 3
  • Biomechanical System Prototype with Advanced Biofeedback for Rehabilitation of Bedridden Patients.
    F Santos, LM Roseiro, C Malça, A André, R Durães, W Xavier, A Cruz, ...
    BIODEVICES, 198-205 , 2023
    2023
    Citations: 3
  • Specific topologies and circuits: challenges in low power
    P Amaro, F Santos
    Elsevier , 2023
    2023
    Citations: 3
  • Automatic velocity measurement system applied to elevator overspeed governors
    M Tomé, P Beirão, L Roseiro, F Santos
    Building Services Engineering Research and Technology 43 (5), 559-569 , 2022
    2022
    Citations: 7
  • Empirical Assessment of the Long-Term Impact of an Embedded Systems Programming Requalification Programme
    J Cunha, J Durães, A Alves, F Coutinho, J Barreiros, JP Amaro, M Silva, ...
    Information 13 (1), 16 , 2021
    2021
    Citations: 2
  • Analisis Perhitungan Harga Pokok Produksi Dengan Metode Activity Based Costing (ABC) Dan Penentuan Harga Jual Pada Industri Beton & Paving Blok Maris Gama
    A Wahyudi
    Journal of Accounting, Finance, and Auditing 2 (02), 94-107 , 2020
    2020
    Citations: 9
  • Reconfiguring TDMA communications for dynamic formation of vehicle platoons
    A Aslam, F Santos, L Almeida
    2020 25th IEEE International Conference on Emerging Technologies and Factory … , 2020
    2020
    Citations: 8
  • First International Computer Programming Education Conference (ICPEC 2020)
    MVP Almeida, LM Alves, MJV Pereira, GAR Barbosa, JP Amaro, ...
    Schloss Dagstuhl-Leibniz-Zentrum für Informatik GmbH , 2020
    2020
  • Obtenção de geopolímero a partir do metacaulim com adição de rejeito de mineração depositado na barragem de Córrego do Feijão (Brumadinho–MG, Brasil)
    JP Ferreira, FMA Santos, SG Tavares, MTP Aguilar
    3 Congresso Sul-Americano de Resíduos Sólidos e Sustentabilidade 2015, 1-10 , 2020
    2020
    Citations: 8
  • Challenges and solutions from an embedded programming bootcamp
    JP Amaro, J Barreiros, F Coutinho, J Durães, F Santos, A Alves, M Silva, ...
    First International Computer Programming Education Conference (ICPEC 2020 … , 2020
    2020
    Citations: 4
  • Empirical performance models of MAC protocols for cooperative platooning applications
    A Aslam, PM Santos, F Santos, L Almeida
    Electronics 8 (11), 1334 , 2019
    2019
    Citations: 17
  • Open IoT architecture for continuous patient monitoring in emergency wards
    C Pereira, J Mesquita, D Guimarães, F Santos, L Almeida, A Aguiar
    Electronics 8 (10), 1074 , 2019
    2019
    Citations: 32
  • Wearable Glove Interaction with Robots
    NMF Ferreira, M Silva, VDN Santos, FM Santos, JCB Santos, JP Ferreira
    2019 International Conference in Engineering Applications (ICEA), 1-6 , 2019
    2019
  • Intelligent robotic devices using knowledge from the cloud
    PJS Gonçalves, FMS Santos
    ISC'2019, 77 , 2019
    2019
  • Impact of platoon size on the performance of TDMA-based MAC protocols
    A Aslam, L Almeida, F Santos
    2018 IEEE Globecom Workshops (GC Wkshps), 1-2 , 2018
    2018
    Citations: 5
  • Project-Based Learning Methodology for Robotics Education
    VDN Santos, NMF Ferreira, JCB Santos, FM Santos, FD Moita, JP Ferreira, ...
    International Conference on Technology and Innovation in Learning, Teaching … , 2018
    2018
    Citations: 2

MOST CITED SCHOLAR PUBLICATIONS

  • Assessing the ESP8266 WiFi module for the Internet of Things
    J Mesquita, D Guimaraes, C Pereira, F Santos
    2018 IEEE 23rd International Conference on Emerging Technologies and Factory … , 2018
    2018
    Citations: 207
  • Coordinating distributed autonomous agents with a real-time database: The CAMBADA project
    L Almeida, F Santos, T Facchinetti, P Pedreiras, V Silva, LS Lopes
    International Symposium on Computer and Information Sciences, 876-886 , 2004
    2004
    Citations: 99
  • Self-configuration of an adaptive TDMA wireless communication protocol for teams of mobile robots
    F Santos, L Almeida, LS Lopes
    2008 IEEE International Conference on Emerging Technologies and Factory … , 2008
    2008
    Citations: 91
  • An adaptive TDMA protocol for soft real-time wireless communication among mobile autonomous agents
    F Santos, L Almeida, P Pedreiras, LS Lopes, T Facchinetti
    Proc. of the Int. Workshop on Architecture for Cooperative Embedded Real … , 2004
    2004
    Citations: 61
  • CAMBADA soccer team: from robot architecture to multiagent coordination
    AJR Neves, JL Azevedo, B Cunha, N Lau, J Silva, F Santos, G Corrente, ...
    Robot Soccer, 19-45 , 2010
    2010
    Citations: 51
  • A loose synchronisation protocol for managing rf ranging in mobile ad-hoc networks
    L Oliveira, L Almeida, F Santos
    Robot Soccer World Cup, 574-585 , 2011
    2011
    Citations: 35
  • Open IoT architecture for continuous patient monitoring in emergency wards
    C Pereira, J Mesquita, D Guimarães, F Santos, L Almeida, A Aguiar
    Electronics 8 (10), 1074 , 2019
    2019
    Citations: 32
  • A robust self-localization system for a small mobile autonomous robot
    FM Santos, VF Silva, LM Almeida
    Proc. of the 2002 IEEE International Symposium on Robotics and Automation , 2002
    2002
    Citations: 31
  • Communicating among robots in the robocup middle-size league
    F Santos, L Almeida, LS Lopes, JL Azevedo, MB Cunha
    Robot Soccer World Cup, 320-331 , 2009
    2009
    Citations: 28
  • Advances in the electric vehicle project-VEIL used as a modular platform for research and education
    PG Pereirinha, JP Trovão, L Marques, M Silva, J Silvestre, F Santos
    EVS24 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium … , 2009
    2009
    Citations: 27
  • A real-time distributed software infrastructure for cooperating mobile autonomous robots
    F Santos, L Almeida, P Pedreiras, LS Lopes
    2009 International Conference on Advanced Robotics, 1-6 , 2009
    2009
    Citations: 26
  • Empirical performance models of MAC protocols for cooperative platooning applications
    A Aslam, PM Santos, F Santos, L Almeida
    Electronics 8 (11), 1334 , 2019
    2019
    Citations: 17
  • Structuring communications for mobile cyber-physical systems
    L Almeida, F Santos, L Oliveira
    Management of Cyber Physical Objects in the Future Internet of Things … , 2016
    2016
    Citations: 17
  • CAMBADA2010: Team description paper
    AJR Neves, JL Azevedo, MB Cunha, N Lau, A Pereira, G Corrente, ...
    Proceedings Robocup 2010 , 2010
    2010
    Citations: 15
  • CAMBADA’2008: Team description paper
    JL Azevedo, N Lau, G Corrente, A Neves, MB Cunha, F Santos, A Pereira, ...
    Robocup MSL TDP 9 , 2008
    2008
    Citations: 15
  • Enhancing the reactivity of the vision subsystem in autonomous mobile robots using real-time techniques
    P Pedreiras, F Teixeira, N Ferreira, L Almeida, A Pinho, F Santos
    Robot Soccer World Cup, 371-383 , 2005
    2005
    Citations: 15
  • The electric vehicle veil project: A modular platform for research and education
    PG Pereirinha, J Trovão, A Marques, A Campos, F Santos, J Silvestre, ...
    Proc. of the European Ele-Drive Transportation Conference , 2007
    2007
    Citations: 14
  • A modular control architecture for a small electric vehicle
    F Santos, J Trovão, A Marques, P Pedreiras, J Ferreira, L Almeida, ...
    2006 IEEE Conference on Emerging Technologies and Factory Automation, 139-144 , 2006
    2006
    Citations: 14
  • A flexible tdma overlay protocol for vehicles platooning
    A Aslam, L Almeida, F Santos
    International Workshop on Communication Technologies for Vehicles, 169-180 , 2018
    2018
    Citations: 13
  • Using RA-TDMA to support concurrent collaborative applications in VANETs
    A Aslam, L Almeida, F Santos
    IEEE EUROCON 2017-17th International Conference on Smart Technologies, 896-901 , 2017
    2017
    Citations: 13