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Automated Topology Synthesis of Analog Integrated Circuits With Frequency Compensation

IEEE Transactions on computer-Aided Design of Integrated Circuits and Systems 2025年第3期44卷 832-844页

作者： Zhao, Zhenxin Liu, Jun Zhao, Wen-Sheng Zhang, Lihong Hangzhou Dianzi University Innovation Center for Electronic Design Automation Technology Zhejiang Hangzhou310018 China Memorial University of Newfoundland Faculty of Engineering and Applied Science Department of Electrical and Computer Engineering St. John'sNLA1C 5S7 Canada

Analog circuit topology synthesis suffers from weak synthesis capability and low-synthesis efficiency, which result in a bottleneck toward its practical industrial applications. This article presents a proximal-policy-optimization-based circuit topology synthesis framework, which features a superior convergence rate. To further promote its synthesis efficiency, we have improved a deterministic optimization method by incorporating a bias-aware scheme and group concept, which is applied as a filter to eliminate the undesirable topologies in the early evaluation stage. Moreover, a graph-based refinement scheme is proposed to perform deterministically on the generated circuit topologies, which can efficiently add frequency compensation circuits. Compared with the state-of-the-art approaches, our proposed method not only boosts the synthesis efficiency by at least 3 times but also enhances the synthesis capability with a deterministic compensation scheme, showcasing significant advancement of performance efficacy. © 2024 IEEE.

关键词： Network topology

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An Insight Into Communication Technologies Utilized in Smart Metering Systems 45

An Insight Into Communication Technologies Utilized in Smart...

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45th Jubilee International Convention on Information, Communication and Electronic Technology, MIPRO 2022

作者： Bacnar, David Leytner, Lolita Stojkovic, Nino Lerga, Jonatan University of Rijeka Faculty of Engineering Department of Computer Engineering Rijeka Croatia University of Rijeka Faculty of Engineering Department of Automation and Electronics Rijeka Croatia University of Angers Polytech Angers Automation and Computer Engineering Department Angers France

ISBN: (纸本)9789532331035

This paper presents an insight into the smart metering field. The paper address specifics of different network hierarchy structures (wide area networks, neighborhood area networks, and home area networks) and topologies used for this purpose (mesh, point-to-point, virtual point-to-point, or broadcast networks). Next, we focus on listing and describing some of the most commonly used communication technologies (both wired and wireless, such as power line communication, public switched telephone network, digital subscriber line, radiofrequency, in-home radio frequency, wireless local area network, or mobile network communications), their characteristics, advantages, and disadvantages utilized for remote and smart metering. © 2022 Croatian Society MIPRO.

关键词： Wide area networks

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PID Resonant Controller for Suppressing the Oscillations of an Elastic Suspension 16

PID Resonant Controller for Suppressing the Oscillations of ...

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16th International Conference on Stability and Oscillations of Nonlinear Control Systems (Pyatnitskiy's Conference), STAB 2022

作者： Yurkevich, Valeriy D. Tam, Bui Van Novosibirsk State Technical University Faculty of Automation and Computer Engineering Novosibirsk Russia

ISBN: (纸本)9781665465861

The method of PID resonance controller design, which provides asymptotic convergence to zero of the amplitude of suspension vibrations under the action of external harmonic perturbations, is proposed. It is shown that the application of the time-scale separation method makes it possible to calculate the parameters of the PID components independently of the calculation of the resonance components of the proposed controller. © 2022 IEEE.

关键词： Controllers

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Increasing the Spatial Resolution of Digital Holograms Based on the Fourier Transform

Increasing the Spatial Resolution of Digital Holograms Based...

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2022 IEEE International Multi-Conference on engineering, computer and Information Sciences, SIBIRCON 2022

作者： Guzhov, Vladimir I. Ilinykh, Sergey P. Novosibirsk State Technical University Faculty of Automation and Computer Engineering Novosibirsk Russia

ISBN: (纸本)9781665464802

The paper considers possible methods of increasing spatial resolution in digital holographic microscopy. A new original approach to increase the spatial resolution of digital holograms obtained in optical-electronic interference measuring systems is proposed. The approach is based on forming a "mosaic"consisting of a set of digital holograms with low spatial resolution. Image reconstruction of an object is obtained by Fourier transformation of such a synthesized digital hologram. A method for forming a digital hologram with high spatial resolution is shown by increasing the spatial resolution of a digital hologram with low spatial resolution by a factor of two horizontally. The optical scheme and design of a digital microscope that implements the proposed approach are shown. The results of practical application of the proposed approach are presented. It is shown that a synthesized digital hologram with high spatial resolution completely reconstructs an image of an object without diffraction limitations inherent in holograms with low spatial resolution. The number of digital holograms with low resolution required to form a digital hologram with high spatial resolution is determined as a product of scale factors in the horizontal and vertical directions. The proposed approach can be easily adapted to arbitrary values of scale coefficients of original holograms. © 2022 IEEE.

关键词： Holograms

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computer Vision Based Assessment of University Websites' Accessibility and Inclusiveness

Computer Vision Based Assessment of University Websites' Acc...

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2022 IEEE International Multi-Conference on engineering, computer and Information Sciences, SIBIRCON 2022

作者： Pudich, Aleksandr S. Grif, Mikhail G. Bakaev, Maxim A. Novosibirsk State Technical University Faculty of Automation and Computer Engineering Novosibirsk Russia

ISBN: (纸本)9781665464802

One of the directions for the development of assistive technologies for people with disabilities (visually impaired, deaf and other categories) is the adaptation of university websites to their needs, often used in an inclusive form of education. According to the law, educational websites in Russia must have dedicated versions for the visually impaired. Our research objective is to evaluate accessibility of the websites and the quality of the versions for visually impaired, mainly automatically, and also to identify the best way to implement such solutions or create accessible websites in general. We have developed a software system for collecting metrics from the two versions of websites: the general one and the one for the visually impaired users. Quantitative metrics based on the HTML code of homepages and based on visual analysis of the homepages screenshots are compared. Metrics are also collected via manual testing. The data was collected for 572 universities websites and was made openly accessible. Correlation analysis of the metrics was carried out. The quality of the versions for the visually impaired users was assessed, recommendations were made for the technical implementation and a standard set of settings was proposed. We collected statistics of used ready-made solutions, as well as of website development tools. We also performed an analysis of the readability of the Russian text in comparison with English on the websites of universities. The paper presents current issues in the field of accessibility of educational sites in Russia, and proposes certain means for their evaluation and guidelines for development of accessible websites. © 2022 IEEE.

关键词： Websites

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Cross-Guided Attention and Combined Loss for Optimizing Gastrointestinal Visual Question Answering

Cross-Guided Attention and Combined Loss for Optimizing Gast...

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2024 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2024

作者： Yang, Qian Liu, Lijun Yang, Xiaobing Liu, Li Peng, Wei Kunming University of Science and Technology Faculty of Information Engineering and Automation Kunming650500 China Yunnan Key Laboratory of Computer Technology Application Kunming650500 China

ISBN: (纸本)9798350386226

Medical Visual Question Answering (Med-VQA) aims at answering clinical questions related to medical imaging, providing important reference for medical imaging diagnosis. Gastrointestinal visual question answering can deeply understand and analyze gastrointestinal medical images, provides supporting information to answer questions about the diagnostic process, and improves diagnostic accuracy and efficiency. However, most existing Med-VQA can only handle simple and general questions, struggling to tackle visual question answering related to complex diseases. Therefore, this paper proposes a Med-VQA model called CACL, which uses cross-guidance and improved combined loss. The model focuses on gastrointestinal image analysis and achieves efficient and accurate feature extraction for gastrointestinal images. A cross-guided attention module is also designed to enhance the model's reasoning ability when dealing with complex cross-modal tasks. In addition, a multi-task composite loss function is designed to balance the loss of segmentation task and classification task, and improve the overall performance. Experimental results show that the proposed method can effectively improve the accuracy of gastrointestinal visual question answering. © 2024 IEEE.

关键词： Multi-task learning

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Platform Stabilization on a Ship under Wave Disturbances

Platform Stabilization on a Ship under Wave Disturbances

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2022 IEEE International Multi-Conference on engineering, computer and Information Sciences, SIBIRCON 2022

作者： Bui, Tam V. Yurkevich, Valery D. Novosibirsk State Technical University Faculty of Automation and Computer Engineering Novosibirsk Russia

ISBN: (纸本)9781665464802

There is a large variety of devices and apparatus of a water vessel for the effective operation of which it is required to provide stabilization of position in space under conditions of wave disturbances, for example, navigation equipment, radar antennas of communication systems. Suppression of the influence of wave disturbances on the operation of this equipment can be provided by placing this equipment on special stabilized platforms. Stabilization of such a platform is provided by means of drives with control system. In this paper, as an example, we consider a stabilized platform with a drive in the form of a DC motor. The control task is to eliminate the influence of wave perturbations on the angle of deviation of the platform relative to the horizon. The paper considers a mathematical model of a stabilized platform on the deck of a watercraft and proposes a new methodology for synthesizing the control system to provide effective suppression of the influence of wave disturbances on the angular position of the platform. The novelty of the proposed approach to the synthesis of the control system consists in the application of the time-scale separation method to calculate the resonant proportional-integral-differential controller. © 2022 IEEE.

关键词： Controllers

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A Vision-Based Autonomous AI Tic-Tac-Toe Manipulation System 12

A Vision-Based Autonomous AI Tic-Tac-Toe Manipulation System

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12th International Electrical engineering Congress, iEECON 2024

作者： Rakprayoon, Panjawee Ounsiri, Akechai Chongyoa, Ratchanon Bangkok University Faculty Of Engineering Dept. Ai Engineering And Data Science Pathum Thani Thailand Dna Robotics And Automation System Company Limited Pathum Thani Thailand Bangkok University Faculty Of Engineering Dept. Computer And Robotics Engineering Pathum Thani Thailand

ISBN: (纸本)9798350383591

For an AI tic-tac-toe manipulator application, a real-time vision-based approach is proposed. The technique employs the RealSense camera to capture color and depth images. Combining object detection and image processing techniques to identify X's and O's positions on the game board. However, we recognize that errors can occur during object movement when using only 2D images. To solve this problem, a calibration method between RealSense and the manipulator based on the point-to-plane ICP algorithm is presented. This method provides the 3D object position in the robot coordinate, resulting in increasing the accuracy from 86.25% to 97.25%. Our experiment shows that this technique is highly effective and can accurately identify position objects. © 2024 IEEE.

关键词： Object detection

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A Deep Learning Approach for Faults Recognition of Dissolved Oxygen Sensor in Wastewater Treatment Plants 28

A Deep Learning Approach for Faults Recognition of Dissolved...

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

作者： Ghinea, Liliana Maria Miron, Mihaela Ratnaweera, Harsha Electrical Engineering and Electronics Faculty of Automation Computers Department of Automatic Control and Electrical Engineering Department Galaţi Romania Computers Electrical Engineering and Electronics Faculty of Automation Department of Computer Science and Information Technology Galaţi Romania Norwegian University of Life Sciences Faculty of Science and Technology Oslo Norway

ISBN: (纸本)9798350339918

Fault diagnosis in wastewater treatment plants (WWTPs) is important to protect communities and ecosystems from toxic elements discharged into water. In this sense, fault identification of sensors plays an important role as they are the key components of the water plants control, especially because environmental legislation is very strict when referring to failures or anomalies in WWTPs. This paper analyzes the performances of two Deep Learning models, a Feedforward Neural Network (FFNN) and a 1D Convolution Neural Network (1DCNN) for identifying five operating states of the dissolved oxygen (DO) sensor: normal and faulty (bias, stuck, spike and precision degradation faults). The experiments were conducted on the Benchmark Simulator Model No 2 (BSM2) developed by the IWA Task Group. The performance of the Deep Learning (DL) classifiers was evaluated via accuracy, precision, recall, and F1-score metrics. The best overall classification accuracy was obtained by FFNN, 98.32% for training and 98.30% for testing. © 2023 IEEE.

关键词： Wastewater treatment

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Overview of Load Disaggregation Models, Methods and Hardware 59

Overview of Load Disaggregation Models, Methods and Hardware

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59th International Universities Power engineering Conference, UPEC 2024

作者： Lancranjan, Mircea N. Muresan, Alexandru Jurj, Dacian I. Berciu, Alexandru Polycarpou, Alexis Czumbil, Levente Micu, Dan D. Technical University of Cluj-Napoca Department Electrical Engineering Cluj-Napoca Romania Technical University of Cluj-Napoca Faculty of Automation and Computer Science Cluj-Napoca Romania Department of Electrical and Computer Engineering and Informatics Frederick University Nicosia Cyprus

ISBN: (纸本)9798350379730

In the dynamic landscape of energy efficiency, a domain garnering ever increasing attention and urgency, the cornerstone of informed decision-making resides in the acquisition of reliable data. This paper summarizes the main approaches, methods and hardware used to gather, process and disaggregate such data on an appliance-by-appliance basis. The paper explores a critical analysis of the various models and techniques that support the gathering of energy data at the appliance level. A range of approaches, including hardware-based solutions such as smart meters, submeters, and sensor arrays, placing a special focus on intrusive load monitoring (ILM) and non-intrusive load monitoring (NILM) algorithms that employ advanced signal processing and machine learning techniques, are examined for their effectiveness, scalability, and suitability for both industrial and commercial contexts. Furthermore, the challenges of data acquisition capabilities, reconciling scalability, cost-effectiveness, and user-friendliness - prerequisites for widespread acceptance and uptake are also investigated. © 2024 IEEE.

关键词： AI Data Cleaning Energy Efficiency Energy Signature Load Disaggregation Load Monitoring NILM

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