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24th International Conference on control systems and Computer Science, CSCS 2023

作者： Beatrix-May, Balaban Stefan, Sacala Ioan Alina-Claudia, Petrescu-Nita Razvan, Nita Politehnica University of Bucharest Faculty of Automatic Control and Computers Department of System Engineering Romania

ISBN: (纸本)9798350313390

Considering the constant growth and evolution of technology, being able to secure data is a challenge. This is why researchers find this a top research topic. Cyber-Physical systems are complex, large-scale systems that can be found in domains like healthcare, transportation, industrial controls systems or smart grids. Having many components that interact with each other, we can observe here the challenge in maintaining a secure environment for the data as data tampering or data extraction can occur, for example, in the actual transportation of data from one device to another. The main focus of this paper is to give an answer if blockchain technology provides a solution in building a secure network. We give a short review of the related work regarding blockchain integration in large-scale systems like Cyber-Physical systems. It was also briefly analyzed the layered structure of a blockchain and discussed some solutions for each layer. We then discussed about consensus algorithms for validation and authentication process. In general, consensus algorithms are implemented to assure the validation process of the nodes in a network. In this paper we tried to analyze and propose a model that offers an extra layer of security by adding the authentication step. In this way, the nodes that are validated are also considered trusted nodes in the network. © 2023 IEEE.

关键词： Blockchain

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Security issues in MCPS when using Wireless Sensor Networks 10

Security issues in MCPS when using Wireless Sensor Networks

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10th E-Health and Bioengineering Conference, EHB 2022

作者： Béatrix-May, Balaban Ştefan, Sacală Ioan Alina-Claudia, Petrescu-Niţă Radu, Simen Department of System Engineering Faculty of Automatic Control and Computers UPB Bucharest Romania

ISBN: (纸本)9781665485579

Considering the evolution of technology, the need to secure data is growing fast. When we turn our attention to the healthcare field, securing data and assuring privacy are critical conditions that must be accomplished. The information is sensitive and confidential, and the exchange rate is very fast. Over the years, the healthcare domain has gradually seen a growth of interest regarding the interconnectivity of different processes to optimize and improve the services that are provided. Therefore, we need intelligent complex systems that can collect and transport sensitive data in a secure way. These systems are called cyber-physical systems. In healthcare domain, these complex systems are named medical cyber physical systems. The paper presents a brief description of the above-mentioned intelligent systems. Then, we focus on wireless sensor networks and the issues and challenges that occur in securing sensitive data and what improvements we propose on this subject. In this paper we tried to provide a detailed overview about cyber-physical systems, medical cyber-physical systems, wireless sensor networks and the security issues that can appear. © 2022 IEEE.

关键词： Wireless sensor networks

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Integrating Blockchain Technology in a Cyber Physical system to Secure Data

Integrating Blockchain Technology in a Cyber Physical System...

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International Conference on control systems and Computer Science (CSCS)

作者： Balaban Bèatrix-May Sacală Ioan Ştefan Petrescu-Niţă Alina-Claudia Niţă Răzvan Department of System Engineering Faculty of Automatic Control and Computers Politehnica University of Bucharest Romania

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Optimized fine-tuned ensemble classifier using Bayesian optimization for the detection of ear diseases

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computers in Biology and Medicine 2025年 191卷 110092-110092页

作者： Elmorsy, Israa Moneir, Waleed Saleh, Ahmed I. Khalil, Abeer Twakol Electronics and Communications Engineering Department Faculty of Engineering Mansoura University Mansoura Egypt ORL Head and Neck Surgery Department Faculty of Medicine Mansoura University Mansoura Egypt Computers and Control System Engineering Department Faculty of Engineering Mansoura University Mansoura Egypt

External and middle ear diseases are common disorders, especially in children, and can be examined using a digital otoscope. Hearing loss can result from delayed diagnosis and treatment which is subjective and error-prone depending on the expertise of the otolaryngologist. For these reasons, deep learning-based automated diagnostic systems are highly needed. In this study, a novel weighted average voting ensemble classifier between MobileNet and DenseNet169 has been developed to diagnose and detect different ear conditions. Bayesian optimization was used to select hyperparameters that gave the best results during the training process. MobileNet and DenseNet169 were fine-tuned by updating the weights of all layers in addition to the newly added layers before fusing them into one ensemble classifier to improve the classification ability of the model and be more specific to our task. This study was performed on a public dataset consisting of 282 otoscopic images. All classes were considered except the Tympanostomy Tubes class for having only two samples. Consequently, the proposed model demonstrated promising results of 99.54 % accuracy and an AUC of 1. Grad-CAM++ saliency maps were employed to highlight the affected area and pertinent features of the otoscopic image. The proposed approach contributes to improving accuracy, decreasing the misdiagnosis rate, and developing an automatic ear disease classification tool. © 2025 Elsevier Ltd

关键词： Image enhancement

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Cyber-Physical systems - A New Approach for Keyless Entry systems 23

Cyber-Physical Systems - A New Approach for Keyless Entry Sy...

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23rd International Conference on control systems and Computer Science Technologies, CSCS 2021

作者： Balaban, Beatrix-May Sacala, Ioan Stefan Petrescu-Nita, Alina Claudia Pop, Florin University Politehnica of Bucharest Department of System Engineering Faculty of Automatic Control and Computers Bucharest Romania

ISBN: (纸本)9781665439398

Nowadays, intelligent vehicles are becoming more and more important in the transportation field. What makes such a vehicle vulnerable is the number of interconnected components that individually have a strong security but can cause weakness points when they are connected. The challenge is to design and build a powerful system that uses both cyber-physical components. The proposed model is a system with integrated modules for fingerprint and face recognition to certify that a driver has the right to access the vehicle. The aim is to develop a security system for intelligent vehicles that can be also a secure keyless entry system using the power of biometrics. When a driver approaches the car, a sensor will activate the recognition modules. Only after the total completion of the recognition process the driver is authenticated and has the right to use the vehicle. We simulated real-time face detection and eye tracking using Matlab 2020a. Face detection is performed using Viola-Jones algorithms and the tracking is made with bbox-es. Besides normal conditions, other tests were made to challenge the algorithm, for example: angle rotations, the use of glasses, face mask, glasses and face mask together. © 2021 IEEE.

关键词： Cyber Physical system

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Security issues in MCPS when using Wireless Sensor Networks

Security issues in MCPS when using Wireless Sensor Networks

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E-Health and Bioengineering Conference (EHB)

作者： Balaban Béatrix-May Sacală Ioan Ştefan Petrescu-Niţă Alina-Claudia Simen Radu Department of System Engineering Faculty of Automatic Control and Computers UPB Bucharest Romania

ISBN: (数字)9781665485579

ISBN: (纸本)9781665485586

关键词： Wireless sensor networks Privacy Exchange rates Data privacy Medical services Cyber-physical systems Security

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Temperature monitoring system in an industrial facility using NI myRIO equipment and I2C sensors

Temperature monitoring system in an industrial facility usin...

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International Carpathian control Conference (ICCC)

作者： Nicolae Patrascoiu Cosmin Rus Ioana Nicoleta Negru Department of Automation Computers Electrical and Power Engineering University of Petrosani Petrosani Romania System control&#x2013 Doctoral School University of Petrosani Petrosani Romania

This paper presents an extremely reliable and easy to implement approach to a temperature monitoring system in a particular location. The entire system is built around a National Instrument myRIO-1900 equipment. NI myRIO-1900 is a portable I/O device that is designed for the academic environment and not only and is much more reliable than any Arduino development board and is much easier to program than any Raspberry PI board - the main competitors in terms of regarding the development of monitoring and control devices for civil use. For this application the programming of this equipment is done in the programming language LabView. The acquisition of ambient temperature data is done using Pmod TMP3 modules which are built around the TCN75A microchip sensor. The communication that allows the data acquisition is made through the I 2 C communication protocol.

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High-Performance Nonlinear control for Three-Phase Two-Level Boost PFC Rectifier

High-Performance Nonlinear Control for Three-Phase Two-Level...

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2024 International Conference on Materials and Energy: Energy in Electrical engineering, ICOME-EE 2024

作者： Sriprang, Songklod Nahid-Mobarakeh, Babak Takorabet, Noureddine Pierfederici, Serge Siangsanoh, Apinya Yodmanee, Kanapot Mungporn, Pongsiri Thounthong, Phatiphat Poonnoy, Nitchamon Bizon, Nicu Suyata, Thong-In Noosawang, Sakrit Université de Lorraine GREEN-ENSEM Laboratory 54505 France Rajamangala University of Technology Rattanakosin Wang Klai Kangwon Campus Petchkasem RD Prachuap Khiri Khan77110 Thailand Université de Lorraine LEMTA Laboratory 54505 France Thailand Thai-French Innovation Institute King Mongkut's University of Technology North Bangkok Bangkok10800 Thailand Faculty of Technical Education Dept. Teacher Training in Electrical Engineering Thailand University of Pitesti Faculty of Electronics Communication and Computers Pitesti110040 Romania University of Technology Faculty of Rajamangala Department of Electrical Engineering Thanyaburi 39 Moo 1 Rangsit-Nakhonnayok Road Pathum Thani 12110 Thailand King Mongkut's University of Technology Thonburi Faculty of Engineering Dept. of Control System and Instrumentation Engineering Bangkok10140 Thailand

ISBN: (纸本)9798331531577

This paper presents a high-performance nonlinear control strategy for a three-phase, two-level boost Power Factor Correction (PFC) rectifier. The proposed control method aims to achieve superior performance in terms of power factor correction, output voltage regulation, and dynamic response under various operating conditions. Utilizing advanced nonlinear control techniques, the system ensures optimal tracking of the reference signals, minimizing total harmonic distortion (THD) and improving overall efficiency. The effectiveness of the control strategy is validated through extensive simulations and experimental results, demonstrating significant improvements in the transient and steady-state performance of the rectifier. This approach provides a robust and efficient solution for PFC applications in modern power electronics systems. © 2024 IEEE.

关键词： Nonlinear control systems

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High-Performance Nonlinear control for Three-Phase Two-Level Boost PFC Rectifier

High-Performance Nonlinear Control for Three-Phase Two-Level...

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Materials and Energy: Energy in Electrical engineering (ICOME-EE), International Conference on

作者： Songklod Sriprang Babak Nahid-Mobarakeh Noureddine Takorabet Serge Pierfederici Apinya Siangsanoh Kanapot Yodmanee Pongsiri Mungporn Phatiphat Thounthong Nitchamon Poonnoy Nicu Bizon Thong-In Suyata Sakrit Noosawang GREEN-ENSEM Laboratory Université de Lorraine France Rattanakosin Wang Klai Kangwon Campus Petchkasem RD Rajamangala University of Technology Prachuap Khiri Khan Thailand LEMTA Laboratory Université de Lorraine France Renewable Energy Research Centre (RERC) Thai-French Innovation Institute King Mongkut’s University of Technology North Bangkok Bangkok Thailand Dept. Teacher Training in Electrical Engineering Faculty of Technical Education Faculty of Electronics Communication and Computers University of Pitesti Pitesti Romania Department of Electrical Engineering Faculty of Rajamangala University of Technology Thailand Dept. of Control System and Instrumentation Engineering Faculty of Engineering King Mongkut’s University of Technology Thonburi Bangkok Thailand

ISBN: (数字)9798331531577

ISBN: (纸本)9798331531584

关键词： Electrical engineering Dynamic response Total harmonic distortion Rectifiers Power factor correction control systems Power electronics Steady-state Voltage control Transient analysis

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Secure web access control algorithm

arXiv

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arXiv 2018年

作者： Ioan, Filip Iosif, Szeidert Cristian, Vasar Department of Control System Engineering "politehnica" University of Timisoara Faculty of Automation and Computers Bv. V. Parvan No.2 Timisoara300223

The paper presents a flexible and efficient method to secure the access to a Web site implemented in PHP script language. The algorithm is based on the PHP's session mechanism. The proposed method is a general one and offers the possibility to implement a PHP based secured access to a Web site, through a portal page and using an additional script included in any site's page, which is required to be accessed only by registered users. This paper presents the design, implementation and integration of the algorithm on any generic WEB site. Copyright © 2018, The Authors. All rights reserved.

关键词： Websites

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