Sergio Saponara

Prof. Sergio Saponara

Department of Information Engineering, University of Pisa, 56126 Pisa, Italy
orcid

Research Focus & Metrics

Academic Career Length

28Years (1999-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
10 November 2020 in Journal of Real-Time Image Processing
Verified
Journal Article
Open access
PDF file
Sergio SaponaraSergio Saponara
Sergio Saponara
Abdussalam Elhadi ElhanashiAbdussalam Elhadi Elhanashi
Abdussalam Elhadi Elhanashi
AGAlessio Gagliardi
Alessio Gagliardi
This work presents a real-time video-based fire and smoke detection using YOLOv2 Convolutional Neural Network (CNN) in antifire surveillance systems. YOLOv2 is designed with light-weight neural network architecture to account the requirements of embedded platforms. The training stage is processed off-line with indoor and outdoor fire and smoke image sets in different indoor and outdoor scenarios. Ground truth labeler app is used to generate the ground truth data from the training set. The trained model was tested and compared to the other state-of-the-art methods. We used a large scale of fire/smoke and negative videos in different environments, both indoor (e.g., a railway carriage, container, bus wagon, or home/office) or outdoor (e.g., storage or parking area). YOLOv2 is a better option compared to the other approaches for real-time fire/smoke detection. This work has been deployed in a low-cost embedded device (Jetson Nano), which is composed of a single, fixed camera per scene, working in the visible spectral range. There are not specific requirements for the video camera. Hence, when the proposed solution is applied for safety on-board vehicles, or in transport infrastructures, or smart cities, the camera installed in closed-circuit television surveillance systems can be reused. The achieved experimental results show that the proposed solution is suitable for creating a smart and real-time video-surveillance system for fire/smoke detection.

5 November 2018 in IEEE Transactions on Industrial Informatics
Verified
Journal Article
Closed access
LBLucia Lo Bello
Lucia Lo Bello
RMRiccardo Mariani
Riccardo Mariani
SMSaad Mubeen
Saad Mubeen
Sergio SaponaraSergio Saponara
Sergio Saponara
Modern cars consist of a number of complex embedded and networked systems with steadily increasing requirements in terms of processing and communication resources. Novel automotive applications, such as automated driving, rise new needs and novel design challenges that cover a broad range of hardware/software engineering aspects. In this context, this paper provides an overview of the current technological challenges in on-board and networked automotive systems. This paper encompasses both the state-of-the-art design strategies and the upcoming hardware/software solutions for the next generation of automotive systems, with a special focus on embedded and networked technologies. In particular, this paper surveys current solutions and future trends on models and languages for automotive software development, on-board computational platforms, in-car network architectures and communication protocols, and novel design strategies for cybersecurity and functional safety.

18 January 2024 in Batteries
Verified
Journal Article
Open access
PDF file
Pierpaolo DiniPierpaolo Dini
Pierpaolo Dini
ACAntonio Colicelli
Antonio Colicelli
Sergio SaponaraSergio Saponara
Sergio Saponara
Lithium-ion batteries have revolutionized the portable and stationary energy industry and are finding widespread application in sectors such as automotive, consumer electronics, renewable energy, and many others. However, their efficiency and longevity are closely tied to accurately measuring their SOC and state of health (SOH). The need for precise algorithms to estimate SOC and SOH has become increasingly critical in light of the widespread adoption of lithium-ion batteries in industrial and automotive applications. While the benefits of lithium-ion batteries are undeniable, the challenges related to their efficient and safe management cannot be overlooked. Accurate estimation of SOC and SOH is crucial for ensuring optimal battery management, maximizing battery lifespan, optimizing performance, and preventing sudden failures. Consequently, research and development of reliable algorithms for estimating SOC and SOH have become an area of growing interest for the scientific and industrial community. This review article aims to provide an in-depth analysis of the state-of-the-art in SOC and SOH estimation algorithms for lithium-ion batteries. The most recent and promising theoretical and practical techniques used to address the challenges of accurate SOC and SOH estimation will be examined and evaluated. Additionally, critical evaluation of different approaches will be highlighted: emphasizing the advantages, limitations, and potential areas for improvement. The goal is to provide a clear view of the current landscape and to identify possible future directions for research and development in this crucial field for technological innovation.

25 June 2023 in Applied Sciences
Verified
Journal Article
Open access
PDF file
Pierpaolo DiniPierpaolo Dini
Pierpaolo Dini
Abdussalam Elhadi ElhanashiAbdussalam Elhadi Elhanashi
Abdussalam Elhadi Elhanashi
ABAndrea Begni
Andrea Begni
Sergio SaponaraSergio Saponara
Sergio Saponara
Qinghe ZhengQinghe Zheng
Qinghe Zheng
KGKaouther Gasmi
Kaouther Gasmi
The Intrusion Detection System (IDS) is an effective tool utilized in cybersecurity systems to detect and identify intrusion attacks. With the increasing volume of data generation, the possibility of various forms of intrusion attacks also increases. Feature selection is crucial and often necessary to enhance performance. The structure of the dataset can impact the efficiency of the machine learning model. Furthermore, data imbalance can pose a problem, but sampling approaches can help mitigate it. This research aims to explore machine learning (ML) approaches for IDS, specifically focusing on datasets, machine algorithms, and metrics. Three datasets were utilized in this study: KDD 99, UNSW-NB15, and CSE-CIC-IDS 2018. Various machine learning algorithms were chosen and examined to assess IDS performance. The primary objective was to provide a taxonomy for interconnected intrusion detection systems and supervised machine learning algorithms. The selection of datasets is crucial to ensure the suitability of the model construction for IDS usage. The evaluation was conducted for both binary and multi-class classification to ensure the consistency of the selected ML algorithms for the given dataset. The experimental results demonstrated accuracy rates of 100% for binary classification and 99.4In conclusion, it can be stated that supervised machine learning algorithms exhibit high and promising classification performance based on the study of three popular datasets.

1 August 2021 in Journal of Systems Architecture
Verified
Journal Article
Open access
MAMohammad Ashjaei
Mohammad Ashjaei
LBLucia Lo Bello
Lucia Lo Bello
MDMasoud Daneshtalab
Masoud Daneshtalab
Gaetano  PattiGaetano Patti
Gaetano Patti
Sergio SaponaraSergio Saponara
Sergio Saponara
SMSaad Mubeen
Saad Mubeen

1 March 2012
Verified
Conference Paper
Closed access
MBM. Brandl
M. Brandl
HGH. Gall
H. Gall
MWM. Wenger
M. Wenger
Vincent R.H. LORENTZVincent R.H. LORENTZ
Vincent R.H. LORENTZ
MGM. Giegerich
M. Giegerich
WPW. Prochazka
W. Prochazka
The battery is a fundamental component of electric vehicles, which represent a step forward towards sustainable mobility. Lithium chemistry is now acknowledged as the technology of choice for energy storage in electric vehicles. However, several research points are still open. They include the best choice of the cell materials and the development of electronic circuits and algorithms for a more effective battery utilization. This paper initially reviews the most interesting modeling approaches for predicting the battery performance and discusses the demanding requirements and standards that apply to ICs and systems for battery management. Then, a general and flexible architecture for battery management implementation and the main techniques for state-of-charge estimation and charge balancing are reported. Finally, we describe the design and implementation of an innovative BMS, which incorporates an almost fully-integrated active charge equalizer.