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Communication Resource Planning Algorithm Based on Time Triggered DIMA Architecture

Journal of Beijing institute of Technology 2019年第2期28卷 327-335页

作者： Hongchun Wang Buqun Luan Wensheng Niu School of Compute Science and Technology Xidian UniversityXi'an 710071China School of Communication Engineering Xidian UniversityXi'an 710071China Institute of Flight Control Tianjin Institute for Advanced Equipments of Tsinghua UnvierstityTianjin 300300China Aeronautical Computing Technique Research Institute Xi'an 710068China

Traditional scheduling algorithms for avionics communication have the shortcoming of messages accumulation,the efficiency and reliability of the service can be improved by combining the distributed integrated modular avionics(DIMA)system with a time trigger *** further improve the utilization of system resources,the static scheduling algorithm of time triggered service is *** making the time trigger message schedule dispersedly,the stabilities of both the available time slots for the event triggered messages and the system will be *** improved two-dimensional bin packing algorithm is also presented to achieve the above-mentioned purpose with an extra benefit of better delay performance.

关键词： distributed integrated modular avionics time-triggered two-dimensional bin packing algorithm

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Design of Personalization Warehouse Management Platform Based on SaaS Model 25

Design of Personalization Warehouse Management Platform Base...

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25th IEEE International Conference on Computer Supported Cooperative Work in Design, CSCWD 2022

作者： Guo, Qi Sun, Hongbo Ji, Wen Yantai University School of Computer and Control Engineering Shandong Yantai264005 China Institute of Computing Technology Chinese Academy of Science Beijing100190 China

ISBN: (纸本)9781665405270

SaaS is widely used in the fields of operation management, business process outsourcing, data analysis, and information security. However, with the improvement of the degree of information, the generalized SaaS platform is unable to satisfy the requirements of enterprise personalization. SaaS products face great challenges in personalized customization technology due to the application of multi-tenant architecture. The challenges include multi-tenant customization in SaaS model, data isolation during customization, and mapping of multi-tenant virtual warehouse locations to actual locations. Therefore, we decompose personalization technology into metadata driver, cloud data placement and mapping mechanism for research. We decompose the personalized technologies into metadata drive, cloud data placement, and mapping mechanism. In order to solve the problem that traditional personalization customization is unable to be applied in the SaaS field, we propose a multi-tenant personalized warehousing mode architecture, designed a personalization warehouse management platform based on SaaS model, and realized SaaS-based data isolation, interface customization, rapid positioning, and on-demand customization services. Experimental results show that the proposed multi-tenant personalized warehouse model can achieve data isolation and customization, and reflect the advantages of highly automated warehousing, shared storage resources, and on-demand customization in terms of warehouse management, data security, and user experience. © 2022 IEEE.

关键词： Metadata

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Disordering-digit method: A simple method to generate pseudo random numbers

Disordering-digit method: A simple method to generate pseudo...

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2014 International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SMTA 2014

作者： Zhang, Xia Pan, Xianzhong Institute of Computing Technology China Academy of Railway Science Beijing China School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing China

ISBN: (纸本)9781845649821

This paper presents a new method called Disordering-Digit Method (DDM) for generating random numbers, which can produce numbers not only stochastic but also unrepeatable. Different from other RNG (Random Numbers Generation) methods by mathematic or physical means, DDM is very simple to realize and can be run in very high speed in computer programming. Simple and unrepeatable are the two most outstanding features of DDM. The details of DDM are explained, and its good statistical features are described. In the end, a real case of producing passenger order numbers through DDM in China Ticket Reservation System is given. © 2014 WIT Press.

关键词： Stochastic systems

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Residual Network and Embedding Usage: New Tricks of Node Classification with Graph Convolutional Networks 2

Residual Network and Embedding Usage: New Tricks of Node Cla...

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2nd International Conference on Computer, Big Data and Artificial Intelligence, ICCBDAI 2021

作者： Chi, Huixuan Wang, Yuying Hao, Qinfen Xia, Hong Institute of Computing Technology Chinese Academy of Sciences Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

Graph Convolutional Networks (GCNs) and subsequent variants have been proposed to solve tasks on graphs, especially node classification tasks. In the literature, however, most tricks or techniques are either briefly mentioned as implementation details or only visible in source code. In this paper, we first summarize some existing effective tricks used in GCNs mini-batch training. Based on this, two novel tricks named GCN_res Framework and Embedding Usage are proposed by leveraging residual network and pre-trained embedding to improve baseline’s test accuracy in different datasets. Experiments on Open Graph Benchmark (OGB) show that, by combining these techniques, the test accuracy of various GCNs increases by 1.21%∼2.84%. We open source our implementation at https://***/ytchx1999/PyGOGB-Tricks. © 2022 institute of Physics Publishing. All rights reserved.

关键词： Convolution

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An anonymous authentication and secure data transmission scheme for the Internet of Things based on blockchain

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Frontiers of Computer Science 2024年第3期18卷 183-197页

作者： Xingxing CHEN Qingfeng CHENG Weidong YANG Xiangyang LUO State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou Institute of Information Science and TechnologyZhengzhou 450001China Henan Key Laboratory of Grain Photoelectric Detection and Control Henan University of TechnologyZhengzhou 450001China Henan Province Key Laboratory of Cyberspace Situation Awareness Zhengzhou Institute of Information Science and TechnologyZhengzhou 450001China

With the widespread use of network infrastructures such as 5G and low-power wide-area networks,a large number of the Internet of Things(IoT)device nodes are connected to the network,generating massive amounts of ***,it is a great challenge to achieve anonymous authentication of IoT nodes and secure data *** present,blockchain technology is widely used in authentication and s data storage due to its decentralization and ***,Fan et *** a secure and efficient blockchain-based IoT authentication and data sharing *** studied it as one of the state-of-the-art protocols and found that this scheme does not consider the resistance to ephemeral secret compromise attacks and the anonymity of IoT *** overcome these security flaws,this paper proposes an enhanced authentication and data transmission scheme,which is verified by formal security proofs and informal security ***,Scyther is applied to prove the security of the proposed ***,it is demonstrated that the proposed scheme achieves better performance in terms of communication and computational cost compared to other related schemes.

关键词： Internet of Things blockchain authentication data transmission

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Cross Spectral Image Registration for Fever Detection

Cross Spectral Image Registration for Fever Detection

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2022 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems, SPICES 2022

作者： Mathew, Joseph George, Sudhish N. Control and Instrumentation Group Centre for Development of Advanced Computing Thiruvananthapuram India National Institute of Technology Calicut Department of Electronics and Communication Engineering Kozhikode India

ISBN: (纸本)9781665449403

An infrared thermal imaging system can screen large groups of people quickly, non-intrusively and with a high level of confidence in spotting febrile subjects. A thermal imaging system must identify individuals with a body core temperature above 38°C to effectively do this. Conventionally, this is per-formed using thermal imaging cameras in the Long Wave Infra Red (LWIR) region. But the issue with most of these systems is that it fails to read the temperature at the inner eye canthi, which is the ideal location on the face for fever detection. This is owing to the lack of distinguishing features that are available on a thermal image. Hence, in this paper, an attempt is made to read the temperature at the inner eye canthus by first detecting the eye region by running the Viola - Jones Haar Cascade algorithm over the visible images, in a popular synchronized visible and thermal face dataset. Subsequently, this identified region of interest in the visible image is registered against its corresponding thermal image using the ORB algorithm to locate the eye canthus area on the thermal image. Experimental results analysed in this paper proves that a read out of the temperature at this pixel location can be a sufficiently accurate estimate of the core body temperature of the subject being screened. © 2022 IEEE.

关键词： Image registration

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Cyber-physical-social System in Intelligent Transportation

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IEEE/CAA Journal of Automatica Sinica 2015年第3期2卷 320-333页

作者： Gang Xiong Fenghua Zhu Xiwei Liu Xisong Dong Wuling Huang Songhang Chen Kai Zhao the State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of Science the Cloud Computing Center Chinese Academy of Sciences Qingdao Academy of Intelligent Industries Beijing Engineering Research Center for Intelligent Systems and Technology Institute of AutomationChinese Academy of Science

A cyber-physical system (CPS) is composed of a physical system and its corresponding cyber systems that are tightly fused at all scales and levels. CPS is helpful to improve the controllability, efficiency and reliability of a physical system, such as vehicle collision avoidance and zero-net energy buildings systems. It has become a hot R&D and practical area from US to EU and other countries. In fact, most of physical systems and their cyber systems are designed, built and used by human beings in the social and natural environments. So, social systems must be of the same importance as their CPSs. The indivisible cyber, physical and social parts constitute the cyber-physical-social system (CPSS), a typical complex system and it's a challengeable problem to control and manage it under traditional theories and methods. An artificial systems, computational experiments and parallel execution (ACP) methodology is introduced based on which data-driven models are applied to social system. Artificial systems, i.e., cyber systems, are applied for the equivalent description of physical-social system (PSS). Computational experiments are applied for control plan validation. And parallel execution finally realizes the stepwise control and management of CPSS. Finally, a CPSS-based intelligent transportation system (ITS) is discussed as a case study, and its architecture, three parts, and application are described in detail. © 2014 Chinese Association of Automation.

关键词： Amphibious vehicles Complex networks Embedded systems Intelligent systems Transportation

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Aerodynamic/control integrated optimization method for unpowered high-speed vehicle configuration design

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Chinese Journal of Aeronautics 2024年第7期37卷 153-167页

作者： Xin PAN Linlin WANG Li LI Lulu JIANG Gang CHEN State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China Shannxi Key Laboratory for Environment and Control of Flight Vehicle School of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China Beijing Institute of Space Long March Vehicle Beijing 100076China AVIC Xi’an Aeronautics Computing Technique Research Institute Xi’an 710068China

The unpowered high-speed vehicle experiences a significant coupling between the disciplines of aerodynamics and control due to its characteristics of high flight speed and extensive maneuverability within large *** conventional aircraft conceptual design process follows a sequential design approach,and there is an artificial separation between the disciplines of aerodynamics and control,neglecting the coupling effects arising from their *** a result,this design process often requires extensive iterations over long periods when applied to high-speed vehicles,and may not be able to effectively achieve the desired design *** enhance the overall performance and design efficiency of high-speed vehicles,this study integrates the concept of Active control Technology(ACT)from modern aircraft into the philosophy of aerodynamic/control integrated *** integrated optimization strategies,with differences in coupling granularity,have been ***,these strategies are put into action on a biconical vehicle that operates at Mach *** results reveal that the comprehensive performance of the synthesis optimal model derived from the aerodynamic/control integrated optimization strategy is improved by 31.76%and 28.29%respectively compared to the base model under high-speed conditions,demonstrating the feasibility and effectiveness of the method and optimization strategies ***,in comparison to the single-stage strategy,the multi-stage strategy takes into deeper consideration the impact of control *** a result,the control performance of the synthesis opti-mal model derived from the multi-stage strategy improves by 13.99%,whereas the single-stage strategy only achieves a 5.79%*** method enables a fruitful interaction between aerodynamic configuration design and control system design,leading to enhanced overall performance and design ***,it improves the controllability of high-sp

关键词： Aerodynamic/control Integrated Optimization MDO High-speed vehicle Shape Optimization controllability

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Remaining Useful Battery Life Prediction for UAVs based on Machine Learning

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IFAC-PapersOnLine 2017年第1期50卷 4727-4732页

作者： Mansouri S.S. Karvelis P. Georgoulas G. Nikolakopoulos G. Robotics Group Control Engineering Division of the Department of Computer Electrical and Space Engineering Luleå University of Technology Luleå SE-97187 Sweden Laboratory of Knowledge and Intelligent Computing Department of Computer Engineering Technological Educational Institute of Epirus Arta Greece

Unmanned Aerial Vehicles are becoming part of many industrial applications. The advancements in battery technologies played a crucial part for this trend. However, no matter what the advancements are, all batteries have a fixed capacity and after some time drain out. In order to extend the flying time window, the prediction of the time that the battery will no longer be able to support a flying condition is crucial. This in fact can be cast as a standard Remaining Useful Life prognostic problem, similarly encountered in many fields. In this article, the problem of Remaining Useful Life estimation of a battery, under different flight conditions, is tackled using four machine learning techniques: a linear sparse model, a variant of support vector regression, a multilayer perceptron and an advanced tree based algorithm. The efficiency of the overall proposed machine learning techniques, in the field of batteries prognostics, is evaluated based on multiple experimental data from different flight conditions. © 2017

关键词： Battery Machine Learning Prediction Remaining Useful Life UAVs

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GIER–A Danish Computer of Medium Size

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IEEE Transactions on Electronic Computers 1963年第6期EC-12卷 629-650页

作者： Gram, C. Hestvik, O. Isaksson, H. Jacobsen, P.T. Jensen, J. Naur, P. Petersen, B.S. Svejgaard, B. Danish Institute of Computing Machinery Danish Academy of Technical Sciences Copenhagen Denmark Engineering Research foundation Division of Automatic Control Technical University of Norway Trondheim Norway University of Copenhagen Copenhagen Denmark Consultant to Danish Institute of Computing Machinery Danish Academy of Technical Sciences Copenhagen Denmark

This paper gives a brief review of the design of the machine GIER (42-bit words, 1-k core store, 12-k drum store, 50-microsecond fixed point, 100-microsecond floating, add time) and its programming systems. The principal subjects are: The order structure, the operating system, the ALGOL 60 system, an evaluation of the order structure, the hardware organization, and the latest hardware extensions, including a hybrid computer system. COPYRIGHT © 1964—THE institute OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC.

关键词： Hardware Jacobian matrices Magnetic cores Punching Machinery Associate members Ferrites Buffer storage Computer aided instruction

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