Sérgio Ivan Lopes

According to our database, Sérgio Ivan Lopes authored at least 40 papers between 2012 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

CoViS: A Contactless Health Monitoring System for the Nursing Home.

Sérgio Ivan Lopes, Fábio Silva, Pedro Pinho, Paulo Marques, Carlos Abreu, João Milheiro, Bruno Braga, Gabriel Queirós, Rita Almeida, Nuno Borges Carvalho

IEEE Access, 2024

2023

A cost-effective LoRaWAN-based IoT localization method using fixed reference nodes and dual-slope path-loss modeling.

Azin Moradbeikie, Ahmad Keshavarz, Habib Rostami, Sara Paiva, Sérgio Ivan Lopes

Internet Things, December, 2023

Adopting Industry 4.0 and Lean Practices in Heavy Metalworking: Impact of Human Factors on Productivity.

Cristiano Jesus, Eduardo Pontes, Rui M. Lima, Sérgio Ivan Lopes

Proceedings of the Information Systems and Technologies, 2023

Improving BLE Fingerprint Radio Maps: A Method based on Fuzzy Clustering and Weighted Interpolation.

Hannaneh Barahouei Pasandi, Azin Moradbeikie, Daniel Barros, David Verde, Sara Paiva, Sérgio Ivan Lopes

Proceedings of the 1st Workshop on Enhanced Network Techniques and Technologies for the Industrial IoT to Cloud Continuum, 2023

Hybrid Building Occupancy Estimation using Thermal Imaging and Environmental Sensing.

Daniel Barros, António M. R. Da Cruz, Sérgio Ivan Lopes

Proceedings of the IEEE International Conference on Industrial Technology, 2023

2022

Mist and Edge Computing Cyber-Physical Human-Centered Systems for Industry 5.0: A Cost-Effective IoT Thermal Imaging Safety System.

Paula Fraga-Lamas, Daniel Barros, Sérgio Ivan Lopes, Tiago M. Fernández-Caramés

Sensors, 2022

A Hybrid Framework for Visual Positioning: Combining Convolutional Neural Networks with Ontologies.

Abdolreza Mosaddegh, Sérgio Ivan Lopes, Habib Rostami, Ahmad Keshavarz, Sara Paiva

EAI Endorsed Trans. Energy Web, 2022

Low-Cost Traffic Sensing System Based on LoRaWAN for Urban Areas.

Hannaneh Barahouei Pasandi, Asma Haghighat, Azin Moradbeikie, Ahmad Keshavarz, Habib Rostami, Sara Paiva, Sérgio Ivan Lopes

CoRR, 2022

A Cost-effective Infrared Thermographic System for Diabetic Foot Screening.

André Rocha, Sérgio Ivan Lopes, Carlos Abreu

Proceedings of the 18th International Conference on Wireless and Mobile Computing, 2022

Exploiting Physical Layer Vulnerabilities in LoRaWAN-based IoT Networks.

Nuno Torres, Pedro Pinto, Sérgio Ivan Lopes

Proceedings of the 8th IEEE World Forum on Internet of Things, 2022

Towards Indoor Radon Analytics: An OLAP-based Multidimensional Approach.

Rolando Azevedo, Joaquim P. Silva, Nuno Lopes, António Curado, Leonel J. R. Nunes, Sérgio Ivan Lopes

Proceedings of the 11th International Conference on Data Science, 2022

Low-cost traffic sensing system based on LoRaWAN for urban areas.

Hannaneh Barahouei Pasandi, Asma Haqiqat, Azin Moradbeikie, Ahmad Keshavarz, Habib Rostami, Sara Paiva, Sérgio Ivan Lopes

Proceedings of the 1st International Workshop on Emerging Topics in Wireless, 2022

2021

Wearables and Internet of Things (IoT) Technologies for Fitness Assessment: A Systematic Review.

João Passos, Sérgio Ivan Lopes, Filipe Manuel Clemente, Pedro Miguel Moreira, Markel Rico-González, Pedro Bezerra, Luís Paulo Rodrigues

Sensors, 2021

Green IoT and Edge AI as Key Technological Enablers for a Sustainable Digital Transition towards a Smart Circular Economy: An Industry 5.0 Use Case.

Paula Fraga-Lamas, Sérgio Ivan Lopes, Tiago M. Fernández-Caramés

Sensors, 2021

Designing a FIWARE-Based Smart Campus with IoT Edge-Enabled Intelligence.

Pedro Martins, Sérgio Ivan Lopes, António Curado

Proceedings of the Trends and Applications in Information Systems and Technologies, 2021

Contactless Smart Screening in Nursing Homes: an IoT-enabled solution for the COVID-19 era.

Sérgio Ivan Lopes, Pedro Pinho, Paulo Marques, Carlos Abreu, Nuno Borges Carvalho, José Ferreira

Proceedings of the 17th International Conference on Wireless and Mobile Computing, 2021

Assessment of Low-Cost Infrared Thermography Systems for Medical Screening in Nursing Homes.

Bruno Braga, Gabriel Queirós, Carlos Abreu, Sérgio Ivan Lopes

Proceedings of the 17th International Conference on Wireless and Mobile Computing, 2021

Security in V2X Communications: A Comparative Analysis of Simulation/Emulation Tools.

João Silva, Luis Barreto, Sérgio Ivan Lopes

Proceedings of the Science and Technologies for Smart Cities, 2021

Identification and Classification of Human Body Parts for Contactless Screening Systems: An Edge-AI Approach.

Diogo Rocha, Pedro Rocha, Jorge Ribeiro, Sérgio Ivan Lopes

Proceedings of the Science and Technologies for Smart Cities, 2021

Improvement of RSSI-Based LoRaWAN Localization Using Edge-AI.

Azin Moradbeikie, Ahmad Keshavarz, Habib Rostami, Sara Paiva, Sérgio Ivan Lopes

Proceedings of the Science and Technologies for Smart Cities, 2021

Evaluation of a Low-Cost COTS Bio Radar for Vital Signs Monitoring.

Fábio Silva, Rita Almeida, Pedro Pinho, Paulo Marques, Sérgio Ivan Lopes

Proceedings of the IEEE International Smart Cities Conference, 2021

Crowd Quantification with Flow Direction Estimation: a Low-Cost IoT-enabled Solution.

Ricardo Santil, Bruno Gomes, Sara Paiva, Sérgio Ivan Lopes

Proceedings of the IEEE Global Conference on Artificial Intelligence and Internet of Things, 2021

Fostering Sustainability on Campus: Design of an IoT-Enabled Smartbottle for Plastic Reduction in the Academic Environment.

João Mendes, Ana Filomena Curralo, António Curado, Sérgio Ivan Lopes

Proceedings of the Advances in Human Dynamics for the Development of Contemporary Societies, 2021

2020

Challenges in Resource-Constrained IoT Devices: Energy and Communication as Critical Success Factors for Future IoT Deployment.

Felisberto Pereira, Ricardo Correia, Pedro Pinho, Sérgio Ivan Lopes, Nuno Borges Carvalho

Sensors, 2020

RnProbe: A LoRa-Enabled IoT Edge Device for Integrated Radon Risk Management.

Felisberto Pereira, Sérgio Ivan Lopes, Nuno Borges Carvalho, António Curado

IEEE Access, 2020

Low-Cost LoRa-Based IoT Edge Device for Indoor Air Quality Management in Schools.

António Abreu, Sérgio Ivan Lopes, Vitor Manso, António Curado

Proceedings of the Science and Technologies for Smart Cities, 2020

2019

RnMonitor: An IoT-Enabled Platform for Radon Risk Management in Public Buildings.

Pedro Martins, Sérgio Ivan Lopes, Felisberto Pereira, António Curado

Proceedings of the Science and Technologies for Smart Cities, 2019

A Visual Analytics Approach for Effective Radon Risk Perception in the IoT Era.

Sérgio Ivan Lopes, Sanne Bogers, Pedro Miguel Moreira, António Curado

Proceedings of the Science and Technologies for Smart Cities, 2019

Short-Term Indoor Radon Gas Study in a Granitic School Building: A Comparative Analysis of Occupation Periods.

Rolando Azevedo, Joaquim P. Silva, Nuno Lopes, António Curado, Sérgio Ivan Lopes

Proceedings of the Science and Technologies for Smart Cities, 2019

Design of a Cost-Effective Multimodal IoT Edge Device for Building Occupancy Estimation.

Felisberto Pereira, Sérgio Ivan Lopes, Nuno Borges Carvalho

Proceedings of the 2019 IEEE International Smart Cities Conference, 2019

RnMonitor: a WebGIS-based platform for expedite in situ deployment of IoT edge devices and effective Radon Risk Management.

Sérgio Ivan Lopes, Pedro Miguel Moreira, António M. Cruz, Pedro Martins, Felisberto Pereira, António Curado

Proceedings of the 2019 IEEE International Smart Cities Conference, 2019

2018

On the design of a Human-in-the-Loop Cyber-Physical System for online monitoring and active mitigation of indoor Radon gas concentration.

Sérgio Ivan Lopes, António Miguel Rosado da Cruz, Pedro Miguel Moreira, Carlos Abreu, Joaquim P. Silva, Nuno Lopes, José M. N. Vieira, António Curado

Proceedings of the IEEE International Smart Cities Conference, 2018

Design of Compact LoRa Devices for Smart Building Applications.

Sérgio Ivan Lopes, Felisberto Pereira, José M. N. Vieira, Nuno Borges Carvalho, António Curado

Proceedings of the Green Energy and Networking, 2018

2016

High energy OFDM pulse design algorithm for acoustic ToF ranging and localization.

Daniel Filipe Albuquerque, José Manuel Neto Vieira, Sérgio Ivan Lopes, Teodoro Aguilera, Fernando J. Álvarez

Proceedings of the International Conference on Indoor Positioning and Indoor Navigation, 2016

Doppler resilient modulation in a CDMA-based acoustic local positioning system.

Daniel Filipe Albuquerque, José Manuel Neto Vieira, Sérgio Ivan Lopes, Teodoro Aguilera, Fernando J. Álvarez

Proceedings of the International Conference on Indoor Positioning and Indoor Navigation, 2016

2015

Accurate smartphone indoor positioning using a WSN infrastructure and non-invasive audio for TDoA estimation.

Sérgio Ivan Lopes, José M. N. Vieira, João Reis, Daniel Filipe Albuquerque, Nuno Borges Carvalho

Pervasive Mob. Comput., 2015

Analysis of the perceptual impact of high frequency audio pulses in smartphone-based positioning systems.

Sérgio Ivan Lopes, José M. N. Vieira, Daniel Filipe Albuquerque

Proceedings of the IEEE International Conference on Industrial Technology, 2015

Characterization of the Near-Far problem in a CDMA-based acoustic localization system.

Teodoro Aguilera, Fernando J. Álvarez, Almudena Sánchez, Daniel Filipe Albuquerque, José Manuel Neto Vieira, Sérgio Ivan Lopes

Proceedings of the IEEE International Conference on Industrial Technology, 2015

2012

MobiFree: A Set of Electronic Mobility Aids for the Blind.

Sérgio Ivan Lopes, José Manuel Neto Vieira, Óscar F. F. Lopes, Pedro R. M. Rosa, Nuno A. S. Dias

Proceedings of the 4th International Conference on Software Development for Enhancing Accessibility and Fighting Info-exclusion, 2012

High Accuracy 3D Indoor Positioning Using Broadband Ultrasonic Signals.

Sérgio Ivan Lopes, José Manuel Neto Vieira, Daniel Filipe Albuquerque

Proceedings of the 11th IEEE International Conference on Trust, 2012