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8th International Conference on Intelligent Computing and Signal Processing, ICSP 2023

作者： Ning, Zhicheng Liu, Xiaoxiang Li, Xinyuan Liu, Jun Beijing Insitute of Control Engineering Science and Technology on Space Intelligent Control Laboratory Beijing China Beijing University of Posts and Telecommunications Intelligent Perception and Computing Research Center Beijing China

ISBN: (纸本)9798350302455

The fault diagnosis technology of spacecraft control systems is a crucial component of spacecraft health management. Traditional fault diagnosis technologies, such as model-based diagnosis and signal processing, are relatively mature but are limited in their ability to fully utilize information in big data environments. Neural network-based fault diagnosis methods often overlook the sequential nature of spacecraft data as time series data. Given that the state of a spacecraft at any given time is closely related to preceding data, it is possible to conduct fault diagnosis by extracting relevant features from fault sample data. In this paper, we propose a graph neural network-based fault diagnosis method for spacecraft control systems. To address the issue of limited fault samples, we construct a spacecraft control system model and generate various types of gyro and flywheel fault data through fault injection. Utilizing the Graphstar model - a powerful graph neural network with strong information mining capabilities - we transform one-dimensional fault data into graph data with spatial structure and extract relevant characteristics through deep learning to diagnose faults. Simulation results demonstrate that our method can effectively diagnose faults with high accuracy. © 2023 IEEE.

关键词： Failure analysis

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On a Template Programming Approach for Shared Memory Parallel Architectures with Applications to the Fully Implicit Stokes Solver 17th

On a Template Programming Approach for Shared Memory Paral...

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17th International Scientific Conference on Parallel Computational Technologies, PCT 2023

作者： Evstigneev, N.M. Ryabkov, O.I. Federal Research Center "Computer Science and Control" of the Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9783031388637

In this paper, we consider a fully implicit Stokes solver implementation targeting both GPU and multithreaded CPU architectures. The solver is aimed at the semistructured mesh often emerging during permeability calculations in geology. The solver basically consists of four main parts: geometry and topology analysis, linear system construction, linear system solution, and postprocessing. A modified version of the AMGCL library developed by the authors in earlier research is used for the solution. Previous experiments showed that the GPU architecture can deliver extremely high performance for such types of problems, especially when the whole stack is implemented on the GPU. However, the GPU memory limitation significantly reduces the available mesh sizes. For some applications, the computation time is not as important as the mesh size. Therefore, it is convenient to have both GPU (for example, CUDA) and multithreaded CPU versions of the same code. The direct code port is time-consuming and error-prone. Several automatic approaches are available: OpenACC standard, DVM-system, SYCL, and others. Often, however, these approaches still demand careful programming if one wants to deliver maximum performance for a specific architecture. Some problems (such as the analysis of connected components, in our case) require totally different optimal algorithms for different architectures. Furthermore, sometimes native libraries deliver the best performance and are preferable for specific parts of the solution. For these reasons, we used another approach, based on C++ language abilities as template programming. The main two components of our approach are array classes and ‘for each’ algorithms. Arrays can be used on both CPU and CUDA architectures and internally substitute the memory layout that best fits the current architecture (as an ‘array of structures’ or ‘structure of arrays’). ‘For each’ algorithms generate kernels or parallel cycles that implement parallel processing for ind

关键词： Graphics processing unit

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Channel Capacity and Power Allocation of MIMO Visible Light Communication System

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China Communications 2023年第2期20卷 122-138页

作者： Shuai Ma Ruixin Yang Guanjie Zhang Hang Li Wen Cao Linqiong Jia Yanyu Zhang Shiyin Li Peng Cheng Laboratory Shenzhen 518055China School of Information and Control Engineering China University of Mining and TechnologyXuzhou 221116China Shenzhen Research Institute of Big Data Shenzhen 518172China School of Electronics and Control Engineering Chang’an UniversityXi’an 710064China School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing 210094China National Digital Switching System Engineering&Technological Research Center Zhengzhou 450000China

In this paper,the channel capacity of the multiple-input multiple-output(MIMO)visible light communication(VLC)system is investigated under the peak,average optical and electrical power *** the channel capacity of MIMO VLC is shown to be a mixed integer programming *** address this open problem,we propose an inexact gradient projection method to find the channel capacity-achieving discrete input distribution and the channel capacity of MIMO *** we derive both upper and lower bounds of the capacity of MIMO VLC with the closed-form ***,by considering practical discrete constellation inputs,we develop the optimal power allocation scheme to maximize transmission rate of MIMO VLC *** results show that more discrete points are needed to achieve the channel capacity as SNR *** the upper and lower bounds of channel capacity are tight at low SNR *** addition,comparing the equal power allocation,the proposed power allocation scheme can significantly increase the rate for the low-order modulation inputs.

关键词： visible light communication MIMO discrete constellation inputs power allocation

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Large-Area Monolayer n-Type Molecular Semiconductors with Improved Thermal Stability and Charge Injection

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Chinese Physics Letters 2023年第3期40卷 68-73页

作者： Sai Jiang Lichao Peng Xiaosong Du Qinyong Dai Jianhang Guo Jianhui Gu Jian Su Ding Gu Qijing Wang Huafei Guo Jianhua Qiu Yun Li School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China National Laboratory of Solid-State Microstructures School of Electronic Science and EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China

We fabricated monolayer n-type two-dimensional crystalline semiconducting films with millimeter-sized areas and remarkable morphological uniformity using an antisolvent-confined spin-coating *** antisolvent can cause a downstream Marangoni flow,which improves the film *** deposited crystalline monolayer films exhibit excellent thermal stabilities after annealing,which reveals the annealing-induced enhancement of *** transistors based on the n-type monolayer crystalline films show linear output characteristics and superior electron *** improved charge injection between monolayer films and Au electrodes results from the energy level shift as the films decrease to the monolayer,which leads to a lower injection *** work demonstrates a promising method for fabricating air-stable,low-cost,high-performance,and large-area organic electronics.

关键词： monolayer crystalline annealing

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Development of a PLCopen-Based controller for Flexible Fatigue Test Applications 30

Development of a PLCopen-Based Controller for Flexible Fatig...

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30th International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2024

作者： Lyu, Xiaofan Wang, Pingjiang Gao, Chaoyang Zhao, Donglin Wei, Peng Luo, Wenbin Huazhong University of Science and Technology School of Mechanical Science and Engineering Wuhan China Quanzhou Hust Research Institute of Intelligent Manufacturing QuanZhou China Huazhong University of Science and Technology National Numerical Control System Engineering Research Center Wuhan China

ISBN: (纸本)9798350391916

Aiming at the flexibility and reconfigurability needs for fatigue test applications, the demand for a PLCopen-based development framework arises. In this study, we utilize the IEC 61131-3 programmable language and PLCopen specifications to design the controller for electro-hydraulic servo loading system. Firstly, PLCopen group function block diagrams are proposed in accordance with experiments. Multiple groups can manage different experiments simultaneously. Then, PLCopen channel function block diagrams are designed to manage district channels in a group. To correct tracking errors, each channel incorporates a peak-valley phase compensator. Peak-valley phase compensator could potentially be used to adjust for multi-frequency sinusoidal spectrum. Finally, simulation and experiment results verify that tracking error could be kept within a defined neighbourhood region. © 2024 IEEE.

关键词： Fatigue testing

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Batch Auctions 16

Batch Auctions

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16th International Conference Management of Large-Scale System Development, MLSD 2023

作者： Vakhranev, Anton Federal Research Center 'Computer Science and Control' of the Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9798350337907

The article continues to work on studingthe problem of resource allocation in the network model. The proposed approach with auctions requires a methodology for setting the problem and its implementation in network models. The work describes a batch auction, formulates the task of the auctioneer, and proposes a scheme for implementing a contract in the blockchain network. © 2023 IEEE.

关键词： Smart contract

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Two Balanced Growth Paths Based on an Endogenous Production Function 14th

Two Balanced Growth Paths Based on an Endogenous Productio...

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14th International Conference on Optimization and Applications, OPTIMA 2023

作者： Olenev, Nicholas Federal Research Center "Computer Science and Control" of the Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9783031478581

The endogenous production function presented in this paper allows for two solutions to the problem of finding balanced growth in a dynamic model of the economy. The endogenous production function is constructed on the basis of a microeconomic description of the dynamics of production capacities by technology. At the micro-level, it is assumed that the number of jobs is set at the time of creation of a production unit, and production capacity of this unit falls at a constant rate. In addition, an age limit of production capacity is set. Then it is possible to construct a production function and obtain its analytical expression under balanced growth path. This expression for the production function contains, among the parameters, the share of new capacities, the rate of decline of each capacity at the micro-level, the growth rate of scientific and technological progress, and the age limit of capacities. The rate of economic growth depends on these same parameters, which makes Solow problem of the golden growth rate for the endogenous production function more interesting. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Economics

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Minimizing Outage Probability Driven Wireless Backhaul Scheme in Heterogeneous Networks

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China Communications 2022年第6期19卷 248-262页

作者： Zhenxing Li Rui Xie Kai Luo Tao Jiang Research Center of 6G Mobile Communications School of Cyber Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Shanghai Electric Control Research Institute Shanghai 200092China

Heterogeneous networks(Het Nets)attracts a lot of attention due to its high capacity and large coverage for future communication ***,with the large-scale deployment of small cells,HetNets bears dramatically increasing backhaul,which leads to a decrease of the outage *** improve the outage performance of Het Nets,we propose a wireless backhaul scheme for a two-layer HetNets,which automatically switches the three basic modes of orthogonal multiple access(OMA),nonorthogonal multiple access(NOMA)and cooperative non-orthogonal multiple access(CNOMA).First,we analyze the backhaul capacity and outage performance of these three basic ***,we design the power allocation schemes based on minimizing outage probability for NOMA and *** the designed power allocation schemes,we propose a wireless backhaul scheme that switches the three modes according to the channel quality among different base stations(BSs).Moreover,the closed-form of the corresponding outage probability is *** with the three basic modes,the proposed wireless backhaul scheme can achieve the best outage performance and a higher backhaul ***,all the analytical results are validated by simulations.

关键词： Het Nets wireless backhaul NOMA outage probability backhaul capacity

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Graphene reinforced nanoarchitectonics of 3D interconnected magnetic-dielectric frameworks for high-efficient and anti-corrosive microwave absorbers

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Journal of Materials science & Technology 2024年第1期168卷 194-207页

作者： Chenchen Liu Xiaofang Feng Shuning Liu Guo Lin Zhongxiang Bai Lingling Wang Ke Zhu Xiulan Li Xiaobo Liu School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu611731China Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials Chengdu611731China School of Chemical Engineering Northwest UniversityXi’an710069China Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology School of Environmental Science and EngineeringSun Yat-sen UniversityGuangzhou510275China

The combination of high efficiency and environmental stability is vital to promote the commercial appli-cations of microwave absorption(MA)materials,yet remains challenging in the absence of facile ***,we put forward a graphene-reinforced construct approach for one-pot synthesis of 3D intercon-nected magnetic-dielectric frameworks via pre-functionalization and subsequent *** in-teractions among discrete precursors are capable of manipulating the confined growth and interfacial *** enhancements in MA properties are triggered in a straightforward manner us-ing ultralow feeding fractions of graphene oxide *** minimum reflection loss is up to-60.1 dB(99.9999%wave absorption)and the effective absorption bandwidth reaches 5.9 GHz(almost covering the Ku band).Remarkably,based on the optimization by ultralow concentrations of graphene,the as-prepared nanoarchitecture simultaneously integrates strong absorption,broad bandwidth,and low matching *** embedded graphene nanosheets serve as high-speed electron transmission channels and hollow resonance cavities,facilitating multimode attenuations and impedance-matching ***-while,the graphene-reinforced framework suppresses the corrosion of magnetic components,whose cor-rosion rate reduces by an order of *** study provides a simple procedure to boost magnetic-dielectric absorbers for comprehensive MA performances and enhanced corrosion resistance.

关键词： 3D Magnetic-dielectric framework Graphene nanosheet Microwave absorption Anti-corrosion

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Methodology for Reliability Assessment of Industrial control Systems

Methodology for Reliability Assessment of Industrial Control...

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2023 International Russian Automation Conference, RusAutoCon 2023

作者： Solovyev, Alexander V. Federal Research Center "Computer Science and Control"of the Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9798350345551

The article covers issues related to the development of methodological provisions for the assessment of the reliability of industrial control systems (ICSs) and the assessment of the effectiveness of ICSs applications by the reliability parameter. The distinctive feature of the suggested methodology is its simplicity, which allows ICS personnel who are not specialists in ICS reliability theory to master it. The author formally set the task and defined the input and output data required to solve that task. The proposed methodological provisions include the range of reliability parameters, the definition of ICS failures and malfunctions, the development of the reliability scheme, and the development of the mathematical model for reliability assessment. The main actions of the suggested methodology are the development of rules for statistical data collection and calculation and the development of rules for the assessment of effectiveness, i.e., the correspondence between projected reliability assessment and reliability assessment implemented during ICS operation. This methodology was tested during scientific and methodological support of works for the modernization of the Russian Federation State Automated System "Vybory"and for the design of the industrial control system Skolkovo "Smart city", in a number of projects on ICS development for different organizations, and it was brought up to the operational method. In further studies, we plan to refine the suggested mathematical model for reliability assessment and develop algorithms for the use of the proposed data collection and calculation rules, enabling integration with built-in control systems for hardware and operating systems. © 2023 IEEE.

关键词： Data acquisition

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