Nearly one-fifth of the Earth's undiscovered hydrocarbons are reserved in the Arctic area whereas, the recent offshore oil and gas loading equipment, e.g., subsea pipelines, wellheads, and communication cables, de...
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Automating the generation of Planning Domain Definition Language (PDDL) with Large Language Model (LLM) opens new research topic in AI planning, particularly for complex real-world tasks. This paper introduces Image2P...
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This paper proposes a novel approach for the design of stabilizing sliding manifolds for linear systems affected by model uncertainties and external disturbances. In classical sliding mode control approaches, rejectin...
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ISBN:
(数字)9783907144107
ISBN:
(纸本)9798331540920
This paper proposes a novel approach for the design of stabilizing sliding manifolds for linear systems affected by model uncertainties and external disturbances. In classical sliding mode control approaches, rejecting model uncertainties and external disturbances often relies on designing a dis-continuous control law with a suitable gain. Specifically, the greater the uncertainty, the larger the control gain. However, this approach might be detrimental to the plant. Instead, the proposed technique deals with this problem by focusing on the design of a suitable sliding manifold, where stability is guaranteed despite model uncertainties. This approach exhibits several benefits such as not needing any further identification process and designing a smaller control gain.
Non-Intrusive Load Monitoring (NILM) allows consumers to monitor appliances' power consumption without installing appliance-level sensors. NILM has become popular with the rapid deployment of smart energy meters. ...
Non-Intrusive Load Monitoring (NILM) allows consumers to monitor appliances' power consumption without installing appliance-level sensors. NILM has become popular with the rapid deployment of smart energy meters. Neural network-based disaggregation approaches have provided more promising results in NILM. However, most of them must have labeled energy data for model training. The availability of energy data is inadequate, and the data must be updated frequently for higher disaggregation performances. However, none of the existing datasets is periodically updated. Therefore, training data has become a limiting factor for commercializing disaggregation solutions. This study addresses the issue by proposing an Independent Component Analysis (ICA) based solution to perform energy disaggregation as a blind source separation problem for the first time in the NILM domain. The aggregate energy signal has been used to prepare the independent input signals with a novel signal preprocessing approach. The results revealed the effectiveness of ICA in NILM applications.
This article presents the problem of designing a nonlinear observer for an active magnetic suspension system. The design process of the nonlinear Luenberger observer (also known as the Kazantzis-Kravaris-Luenberger ob...
This article presents the problem of designing a nonlinear observer for an active magnetic suspension system. The design process of the nonlinear Luenberger observer (also known as the Kazantzis-Kravaris-Luenberger observer) is discussed. Particular attention was paid to the main nonlinearity of the system - the electromagnetic force, which was modeled applying the function describing the change in inductance as a function of the distance of the levitating object from the electromagnet surface. Theoretical analyses were confirmed by the results of experimental studies in which the task of moving the sphere between the given positions using current control was carried out. Control tasks were conducted in the real-time regime on an embedded platform. The measured signals and estimated velocity were analyzed in the context of future implementations in control applications.
Modern methods of remote sensing data processing require preliminary knowledge of the coordinates of objects or their manual selection. This study proposes a new approach that allows automatic and rapid detection of l...
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ISBN:
(数字)9798331512194
ISBN:
(纸本)9798331512200
Modern methods of remote sensing data processing require preliminary knowledge of the coordinates of objects or their manual selection. This study proposes a new approach that allows automatic and rapid detection of large-scale objects in satellite images, which creates the basis for their subsequent detailed analysis. The developed algorithm is based on key principles, the use of adaptive structural features similar to Haar wavelets, the application of cascade classification with a modified Adaboost algorithm, optimization of computational processes due to a three-level filtering system. Forest areas with areas of cut trees are considered as a test example. To improve the accuracy of recognition, automatic calibration of object sizes and dynamic adaptation of scanning parameters were used. The choice of the optimal processing method is based on a comprehensive analysis of the characteristics of the original image. The results obtained open up new opportunities for automated monitoring of territories and analysis of changes.
The paper presents a scaled laboratory experimental model of ferroresonant circuit designed for detailed investigation of the ferroresonance phenomena. To enable accurate ferroresonance examination, the system is expa...
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The paper presents a scaled laboratory experimental model of ferroresonant circuit designed for detailed investigation of the ferroresonance phenomena. To enable accurate ferroresonance examination, the system is expanded with programmable voltage source and fully automated test system using hardware-in -the-loop methodology.
Electric Vehicles (EVs) are being widely adopted as a green alternative to fossil-based vehicles. However, the current charging infrastructure for EVs is inadequate to meet the growing charge demand. Vehicle-to-Vehicl...
Electric Vehicles (EVs) are being widely adopted as a green alternative to fossil-based vehicles. However, the current charging infrastructure for EVs is inadequate to meet the growing charge demand. Vehicle-to-Vehicle (V2V) charging offers a promising solution that enables a charge supplier EV to provide charging services to a charge demander EV in a distributed manner. Nevertheless, V2V matching and charge scheduling can disclose sensitive location information about the drivers, such as their whereabouts and driving patterns. In this paper, we propose a privacy-preserving scheme for centralized optimal matching of demander EVs with supplier EVs, while protecting their sensitive information. In our scheme, charge demanders report to a matching server their encrypted location information and the requested energy quantities, whereas charge suppliers report encrypted charge costs such that the matching server can learn only the cost to match each demander to each supplier without revealing any location information or the exchanged charge amount. Then, the Hungarian algorithm is used to match demanders to suppliers while minimizing the total cost. The security analysis and simulation results show that our scheme can achieve optimal V2V matching while preserving drivers’ privacy with negligible computation overhead. Overall, our proposed scheme provides an effective solution for V2V charging, while maintaining privacy and confidentiality of sensitive drivers’ information.
Problem Statement. New unmanned aerial vehicle (UAV) technology has become more accessible and practical for transmission line inspection. In this paper, we propose a multi-platform UAV system and a multi-model commun...
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ISBN:
(数字)9798331511241
ISBN:
(纸本)9798331511258
Problem Statement. New unmanned aerial vehicle (UAV) technology has become more accessible and practical for transmission line inspection. In this paper, we propose a multi-platform UAV system and a multi-model communication system designed for high-efficiency transmission line inspection tasks. Different UAVs perform both long-range and short-range surveillance functions, and provide communication relay. High-quality images and videos are transmitted in real time to the local control station for UAV navigation and to the remote office for analysis. Practice shows that joint inspection using multiple UAVs can significantly outperform traditional inspection methods. Objective. To propose a new method for inspecting and checking the condition of power lines using several types of UAVs using certain signal transmission and relay methods. Results. A new concept of power line inspection using joint actions of unmanned aerial vehicles (UAVs) is proposed. The functional capabilities of the UAVs and the communication system are considered and discussed. Practical experience shows that due to joint work, the time spent on inspection can be significantly reduced and the efficiency can be significantly increased. The feasibility and advantages of inspections using UAVs are confirmed. Future work can focus on optimizing the configuration of UAVs as part of a group. Practical significance. The presented method allows increasing the efficiency of inspection and testing of power transmission lines in comparison with existing methods.
In electrical energy distribution, losses are a challenging problem, among these losses electricity theft plays a prominent role. Not only Pakistan but many other countries throughout the world face this challenge. Th...
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ISBN:
(数字)9798350378368
ISBN:
(纸本)9798350378375
In electrical energy distribution, losses are a challenging problem, among these losses electricity theft plays a prominent role. Not only Pakistan but many other countries throughout the world face this challenge. This paper presents a system based on smart meter to detect the approximate location of electricity theft. Along with electricity theft detection, this paper also proposes a system for the elimination of illegal consumers. The approach used is that the total energy is compared with the legally consumed energy. For communication between the meters wireless communication techniques are used including Global System for Mobile Communications (GSM) and Network Repository Function (NRF).
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