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27th International Conference on System Theory, control and Computing, ICSTCC 2023

作者： Botan, Corneliu Ostafi, Florin Dept. of Automatic Control and Applied Informatics Technical University of Iasi Iasi Romania

ISBN: (纸本)9798350337983

The paper deals with an optimal tracking problem in the presence of disturbances. A linear system in discrete time is considered. The paper presents a procedure with computational advantages. Step variant functions are used for approximation of the disturbance and reference variables. Simulation results are indicated. © 2023 IEEE.

关键词： Linear systems

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Mixed Reality Framework for Eye-in-Hand Collaborative Robot-Human Interaction 27

Mixed Reality Framework for Eye-in-Hand Collaborative Robot-...

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27th International Conference on System Theory, control and Computing, ICSTCC 2023

作者： Sopon, Ionut Tincu, Cristina Ganciu, Aura Burlacu, Adrian Dept. of Automatic Control and Applied Informatics Gheorghe Asachi Technical University of Iasi Iasi Romania

ISBN: (纸本)9798350337983

In recent years, the manufacturing sector has undergone a significant transition from a paradigm of robotic autonomy to human-robot collaboration. This approach allows operators from different domains to rapidly adapt to a new way of working and reduces redundant learning costs, while also enabling intuitive robot control. To further enhance this paradigm, integrating Mixed Reality (MR) technology has emerged as a promising approach to creating and working in a virtual workspace while having a safe environment for training. This work develops a framework, based on digital twin representation, to integrate the MR with real-life equipment and humans. This allows for the control of a collaborative robot in an environment with objects or humans perceived by the eye-in-hand visual sensor. The efficiency of the proposed framework is emphasized by a comparison of Unity simulations versus the real-time behavior of the collaborative robot. © 2023 IEEE.

关键词： Mixed reality

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UAS – WSN SYSTEMS, A PERSPECTIVE ON COMMUNICATION SYSTEM ARCHITECTURE

UPB Scientific Bulletin, Series C: Electrical Engineering an...

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UPB Scientific Bulletin, Series C: Electrical Engineering and Computer Science 2022年第1期84卷 51-62页

作者： Militaru, Gabriel Popescu, Dan Dept. of Automatic Control and Industrial Informatics University POLITEHNICA of Bucharest Romania

Unmanned systems, artificial intelligence and affordable wireless technologies represent the main drivers for the digital transformation that could have a positive impact for the rural areas development. This article presents today’s options for wireless communications technologies for UAV applications. Available solutions, advantages and limitations of implementing UAV precision farming for medium and large scale WSN were reviewed and compared for the reader's benefit. The authors proposed and simulated an optimum cost-efficient communication system architecture and presented its conclusions to validate the proposed communication system. © 2022, Politechnica University of Bucharest. All rights reserved.

关键词： Unmanned aerial vehicles (UAV)

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MELANOMA AUTOMATED DETECTION SYSTEM INTEGRATED WITH AN EHR PLATFORM

UPB Scientific Bulletin, Series C: Electrical Engineering an...

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UPB Scientific Bulletin, Series C: Electrical Engineering and Computer Science 2024年第1期86卷 57-68页

作者： El-Khatib, Hassan Ștefan, Ana-Maria Popescu, Dan Dept. of Automatic Control and Industrial Informatics National University of Science and Technology POLITEHNICA Bucharest Romania Dept. of Electronics Telecommunications and Information Technology National University of Science and Technology POLITEHNICA Bucharest Romania

Early melanoma detection is vital for improved treatment outcomes and reduced mortality. This paper proposes integrating an automated melanoma detection system into the Electronic Health Record, offering benefits like seamless screening during routine medical visits, enhancing early lesion detection. The system's efficiency allows providers to focus on patient care, while real-time alerts ensure timely follow-up. Patient engagement promotes proactive skin health. Interoperability within the EHR facilitates comprehensive care, resulting in better outcomes, reduced costs, and proactive prevention. © 2024, Politechnica University of Bucharest. All rights reserved.

关键词： Automation

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SERVICE QUALITY EVALUATION USING ROBOTIC PROCESS AUTOMATION TOOLS

UPB Scientific Bulletin, Series C: Electrical Engineering an...

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UPB Scientific Bulletin, Series C: Electrical Engineering and Computer Science 2023年第3期85卷 93-108页

作者： Negoiţă, Radu Florin Borangiu, Theodor Doctoral School of Automatic Control and Computers University POLITEHNICA of Bucharest Romania Dept. of Automation and Industrial Informatics University POLITEHNICA of Bucharest Romania

Service quality is a vital component of the overall customer experience and should therefore be measured to know how the business’ service measures up to the customer’s expectations. The paper describes a Robotic Process Automation software tool for service quality control created for information-based service systems. The RPA bots are extended with artificial intelligence techniques used in the end-to-end automation of future service organizations. The software bots automate repetitive, time consuming human tasks (customer feedback evaluation, content analysis, data extraction) and speed up complex computations: OCR, data-driven analysis, support to intelligent decisions. Experiments performed with the Blue Prism tool are reported. © 2023, Politechnica University of Bucharest. All rights reserved.

关键词： Robotics

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Constrained Predictive Current control in dq Frame for a Permanent Magnet Synchronous Machine 28

Constrained Predictive Current Control in dq Frame for a Per...

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28th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2023

作者： Costin, Madalin Lazar, Corneliu Gheorghe Asachi Technical University of Iasi Dept.of Automatic Control and Applied Informatics Iasi Romania Dunarea de Jos University of Galati Dept. of Automatic Control and Electrical Engineering Galati Romania

ISBN: (纸本)9798350339918

In the paper, the design and Simulink implementation of a predictive current control structure in dq frame for a permanent magnet synchronous machine (PMSM) are presented. Starting from the multivariable model of the currents in the dq reference frame, first it is decoupled and through the rejection of the disturbance introduced by the back-EMF, two single-input single-output (SISO) systems result whose dynamics are generated by R-L circuits. For these SISO systems, the model predictive control (MPC) algorithms are designed that allow the consideration of physical limitations through constraints The performances of the current control structure with MPC algorithms are compared with those obtained with the conventional PI controllers. © 2023 IEEE.

关键词： Model predictive control

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From Model Predictive control to Data Driven control to Meet High Efficiency Objective of a PMSM Drive System 16

From Model Predictive Control to Data Driven Control to Meet...

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16th International Conference on applied and Theoretical Electricity, ICATE 2024

作者： Costin, Madalin Bivol, Ion 'Dunarea de Jos' University of Galati Dept. of Electrical Engineering and Energy Conversion Systems Galati Romania Gheorghe Asachi Technical University of Iasi Dept. of Automatic Control and Applied Informatics Iasi Romania

ISBN: (纸本)9798350388107

In this paper is proposed a Data Driven control (DDC) law of a Permanent Magnet Synchronous Machine (PMSM) drive as an alternative to the Model Predictive control (MPC) strategy. The DDC method is designed for the inner control structure of the PMSM drive, the outer speed loop being employed by a classical linear PI controller. Thus, the DDC is based on build up a database of the relevant quantities as electromagnetic torque, speed, voltages and current, all obtained in steady-state regime with MPC strategy, being selected for the highest efficiency values for a given pair of speed and torque. The learning process of the DDC strategy by a mutidimesional interpolation method leads to obtain high performances in both steady-state and dynamic regimes, without any additional optimal current reference command. A comparative analysis done in Matlab simulation environment of the results obtained by both MPC and DDC control laws shows the effectiveness of the last strategies. The DDC method provide a robust optimal control under energetic constraints, being more suitable then the classical MPC law that can not offers reliable results for a large area of conditions in practice. © 2024 IEEE.

关键词： MATLAB

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Cooperative adaptive cruise control with string stability based on DMPC for vehicle platooning 27

Cooperative adaptive cruise control with string stability ba...

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27th International Conference on System Theory, control and Computing, ICSTCC 2023

作者： Pauca, Ovidiu Lazar, Mircea Caruntu, Constantin F. Dept. of Automatic Control and Applied Informatics Gheorghe Asachi" Technical University of Iasi Iasi Romania Dept. of Electrical Engineering Eindhoven University of Technology Eindhoven Netherlands

ISBN: (纸本)9798350337983

The cooperative adaptive cruise control (CACC) functionality received significant interest in the state-of-the-art due to its advantages in optimizing traffic flow. The model-based predictive control (MPC) strategy was used in various studies due to its advantages in improving the performance of the vehicles (reducing the travel costs, improving the quality of the travel by reducing sudden accelerations, and ensuring the stability of the platoons). Moreover, MPC solutions are built to maximize the advantages of vehicular communication by sharing predictions on states of vehicles (e.g., velocities, accelerations, trajectories). In addition, MPC is also used to compensate for the disturbances added by communications. Thus, this paper proposes a CACC strategy for a vehicle platoon. The solution is based on the distributed MPC (DMPC) strategy, and the controller is proposed in discrete time, ensuring predecessor-follower string stability for the whole platoon. © 2023 IEEE.

关键词： Vehicles

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Detection of Epileptic Seizures With Autoencoders Working With Multiple EEG Frames 10

Detection of Epileptic Seizures With Autoencoders Working Wi...

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10th E-Health and Bioengineering Conference, EHB 2022

作者： Ferariu, Lavinia Mihalachi, Angela Dept. of Automatic Control and Applied Informatics "Gheorghe Asachi" Technical University of Iasi Iasi Romania

ISBN: (纸本)9781665485579

Electroencephalogram (EEG) signals can be used for discriminating between ictal and non-ictal phases, to protect people affected by epilepsy. Recent studies show the ability of autoencoders (AEs) to learn valuable EEG abstractions that can be effectively processed by classifiers. To some extent, information from previous frames could be useful for detection. However, the design should avoid using AEs with large input sizes, to prevent unsuccessful feature learning. This paper discusses AE-based schemes which allow the investigation of multiple successive frames. A hierarchical feature extractor is introduced to correlate long-term information via AEs of reduced input sizes, to support easy training. The experimental results indicate improved detection accuracy for the classification based on the proposed multi-frame hierarchical feature extractor, compared to feature extractors that work on a single frame, or use a priori/ a posteriori aggregation of frames. © 2022 IEEE.

关键词： Electroencephalography

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Front-Office Management of Service Operations with Robotic Process Automation 24

Front-Office Management of Service Operations with Robotic P...

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

作者： Negoita, Radu-Florin Borangiu, Theodor University Politehnica of Bucharest Doctoral School of Automatic Control and Computers Bucharest Romania University Politehnica of Bucharest Dept. of Automatic Control and Industrial Informatics Bucharest Romania

ISBN: (纸本)9798350313390

Coordinating service capacity with dynamic varying, market-driven customer demand in a service business imposes correlating and synchronizing front-office and back-office processes - the first addressing customer relationship management and the second inventory planning, forecasting demand, analytics, and strategic decision making. Front office management (FOM) contributes substantially in coordinating the services requested by guests, and needs to be integrated in an Operations Management Software system specific for hotel business. Research efforts are currently directed towards automating repetitive, time consuming operations included in front office processes that are in great number, initiated by random events and customer actions with variable timing. The paper presents a solution to automate FOM operations that are kept consistent with the business strategy of the organization, and assist front-office workflows involving customers (service requests, service quality assessment) and front line personnel (registration, check in, check out, taxation and invoicing). The solution is based on the Robotic Process Automation (RPA) technology extended with AI-based functionalities for the intelligent process automation and integration with back-office workflows. © 2023 IEEE.

关键词： Robotics

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