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4th International Conference on Cloud Computing and Security, ICCCS 2018

作者： Xie, Xiaolan Zheng, Qiangqing Guo, Zhihong Wang, Qi Li, Xinrong College of Information Science and Engineering Guilin University of Technology GuilinGuangxi Zhuang Autonomous Region China Guangxi Universities Key Laboratory of Embedded Technology and Intelligent System Guilin University of Technology Guilin China College of Mechanical and Control Engineering Guilin University of Technology GuilinGuangxi Zhuang Autonomous Region China

ISBN: (纸本)9783030000059

With the development of economy and technology, blockchains has become the preferred technology to solve the credit problems of both parties. Taking the sensitivity of transaction data into account, the use of blockchains technology in the B2B trading system is very appropriate. The credit problem of the B2B trading platform are solved in the article by introducing consortium blockchains technology, and a container-based cloud platform based on docker and kubernetes is built to improve the performance in the application of the consortium blockchains. First, it solves the problem of node performance bottleneck caused by the sudden increase of nodes, high-frequency transactions, and overclocking transactions. Second, it solves the problem of rapid iterative upgrade of node system versions with the rapid development of consortium blockchains technology, and securely stores consortium blockchains data and enterprise’s own sensitive data. The platform, to a certain extent, solved the credit problems of the transactions between enterprises, and at the same time reduced the time cost and the economic cost of the company. © Springer Nature Switzerland AG 2018.

关键词： Blockchain

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Approximate Stiffness Element Method for Complex Section Beam Modeling

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Journal of Physics: Conference Series 2020年第1期1605卷

作者： Xinshen Huang Hao Li Zhenkun Zhang Jianguo Zheng Hailong Pei Guangzhou Customs Technology Center Guangzhou China Key Laboratory of Autonomous Systems and Networked Control Ministry of Education Unmanned Aerial Vehicle Systems Engineering Technology Research Center of Guangdong School of Automation Science and Engineering South China University of Technology Guangzhou China

In this paper, a finite element method of simulating complex section beam element with approximate stiffness element is presented. By establishing an approximate stiffness element, the basic mechanical properties of the element are equivalent to the original complex section beam element's. The approximate stiffness element has several sub-section beam elements, which intersect with other beam elements in space. The problem that missing of intersection points among complex section beam and other beams, which is caused by using conventional beam element, is solved. The error between the approximate stiffness element and the original complex section beam element is analyzed by theoretical deduction, and the feasibility and accuracy of the approximate stiffness element method are verified by the physical test of a bus body.

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A Fast Calculation Method for Bus Body Based on Equivalent Stiffness Element Method

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Journal of Physics: Conference Series 2020年第1期1626卷

In view of complex modeling and inefficient calculation at existing stage finite element analysis method in bus body skeleton analysis. This paper presents a method on simulating complex large section beams by equivalent stiffness element. Equivalent stiffness element model is analyzed theoretically. Experiments are carried out to verify that the equivalent stiffness element method can be used in rapid analysis and calculation for girder, body frame and body optimization. It not only reduces modeling complexity, but also improves calculation efficiency. To a certain extent, it can provide a better analysis method for large-scale vehicle modeling and simulation.

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GPS/SINS/MC Integrated Navigation Algorithm Research Based on Zero Velocity Update 36

GPS/SINS/MC Integrated Navigation Algorithm Research Based o...

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第36届中国控制会议

作者： Fuchun Liu Shengjie Cao Yifeng Chen Xuan Su College of Automation Science and Engineering the Key Laboratory of Autonomous Systems and Networked Control（ASNC）Ministry of EducationSouth China University of Technology

ISBN: (纸本)9781538629185

The navigation output accuracy of SINS/GPS integrated navigation system will decline when GPS is not *** Velocity Update（ZUPT） technology is used for the error correction in this *** a relevant algorithm,the zero velocity detection algorithm is applied in the carrier *** method has achieved an integrated navigation system filtering algorithm based on *** simulation and experiment results show that the algorithm effectively improves the accuracy of navigation by limiting the velocity value of GPS in zero-velocity condition.

关键词： Integrated Navigation Zero Velocity Update Kalman Filter

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Research on Indoor Robot SLAM of RBPF Improved with Geometrical Characteristic Localization 29

Research on Indoor Robot SLAM of RBPF Improved with Geometri...

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第29届中国控制与决策会议

作者： Liu Fuchun Chen Yifeng Li Yunze College of Automation Science and Engineering the Key Laboratory of Autonomous Systems and Networked Control(ASNC)Ministry of EducationSouth China University of Technology

ISBN: (纸本)9781509046584

LIDAR and odometer are used as the main sensors in this paper, with the two-wheeled self-balancing robot as the research and experiment platform, this topic has researched the way to SLAM when the robot is in unfamiliar environment with uncertain position and orientation. On the issue of setting the dynamic threshold value to zone the LIDAR scanning points in the process of constructing the geometry map, with the consideration of the character of RPLIDAR which is used in our research, this paper has analyzed and proposed the specific dynamic threshold values, which make the zoning of LIDAR scanning points more reasonable. In order to improve the robustness of SLAM, we have used regular particle filter(RPF) as the location algorithm. In order to solve the problem of unable to add auxiliary information under the traditional MCL framework, we have taken full use of the high accuracy character of the geometry matching and locating, and have used the result of it to improve the importance density function of RPF. Based on the idea of Rao-Blackwellization, the improved RBPF-SLAM has been proposed. The validity and feasibility of the improved RBPF-SLAM have been proved with simulations and experiments.

关键词： Simultaneous Localization and Mapping LIDAR robot particle filter

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Optimal control via Weighted Congestion Game with Linear Cost Functions 36

Optimal Control via Weighted Congestion Game with Linear Cos...

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第36届中国控制会议

作者： Sisi Pan Yupeng Qiao Key Laboratory of Autonomous System and Network Control College of Automation Science and EngineeringSouth China University of Technology

ISBN: (纸本)9781538629185

This paper considers the optimal control via weighted congestion game with linear cost functions. First, the weighted congestion game is converted into a matrix form for the sake of simplicity of computation. Second, a system performance criteria is proposed in order to minimize individual cost, and by designing proper parameters of linear cost functions, the given system performance criterion is converted into weighted potential function of a weighted congestion game. Then the profile dynamics is expressed into an algebraic form and potential-based stability of weighted congestion game is considered by using the Lyapunov-based approaches. Finally, an example is given to illustrate the theoretical results.

关键词： Optimal control Weighted congestion game Linear cost functions Profile dynamics Lyapunov-based approaches

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Chinese resume information extraction based on semi-structured text 36

Chinese resume information extraction based on semi-structur...

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第36届中国控制会议

作者： YAN Wentan QIAO Yupeng Key Laboratory of Autonomous System and Network Control College of Automation Science and EngineeringSouth China University of Technology

ISBN: (纸本)9781538629185

A Chinese resume information extraction system（CRIES） based on semi-structured text is designed and implemented to obtain formatted information by extracting text content of every field from resumes in different formats and update information automatically based on the ***,ideas to classify resumes,some constraints obtained by analyzing resume features and overall extraction strategy is *** two extraction algorithms for parsing resumes in different text formats are ***,the system was implemented by java ***,use the system to resolve the resume samples,and the statistical analysis and system optimization analysis are carried out according to the accuracy rate and recall rate of the extracted results.

关键词： semi-structured Chinese extraction regular expression matching

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An Infinite-Dimensional Luenberger-Like Observer for Water Waves

An Infinite-Dimensional Luenberger-Like Observer for Water W...

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Chinese control Conference (CCC)

作者： Yang YU Hai–Long PEI Cheng–Zhong XU Key Laboratory of Autonomous Systems and Networked Control University of Technology Guangzhou China LAGEP Batiment CPE University Claude Bernard-Lyon 1 Villeurbanne Cedex France

The paper deals with the observation problem by using an infinite dimensional observer for the water wave system governed by linearized water wave partial differential equations. We consider that the water wave system evolves in some infinite-dimensional Hilbert space. The output measurement of dynamical system is supposed to be the water wave surface elevation. An infinite-dimensional exponentially convergent Luenberger-like observer is proposed to estimate the states of water water system: water velocity potential and surface elevation. Numerical simulations by the finite difference scheme are carried out to validate the proposed observer.

关键词： Observers Sea surface Surface waves Propagation Eigenvalues and eigenfunctions Hilbert space Boundary conditions

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key Technologies of Time-Sensitive Networking and Its Application

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IOP Conference Series: Materials Science and Engineering 2020年第4期782卷

作者： Qing Li Dong Li Xinbo Sun Key Laboratory of Networked Control System Chinese Academy of Sciences Shenyang 110016 China Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of Sciences Shenyang 110016 China University of Chinese Academy of Sciences Beijing 100049 China

Network is the core element of many industrial and automation systems. In the future, more attention will be paid to convergent and unified network. Time-critical traffic and non-time-critical traffic need to share communication channels. The goal of the IEEE TSN task group is to extend the existing Ethernet standard to achieve a degree of certainty that meets the hard-real-time requirements of modern control networks in the industrial automation and automotive industries. Time sensitive network (TSN) is characterized by low jitter, low delay and deterministic transmission. It can transmit critical and non-critical traffic in the same network, which is very suitable for time- critical applications with high requirements on transmission delay. This paper briefly summarizes the key components of TSN, studies the key technologies, and carries out a simple traffic scheduling experiment on the switch based on 802.1Qbv function, and finally analyzes the application of TSN in industrial automation and automobile industry.

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ZD controller for Output Tracking,Setting,Zeroing and Maintaining of Time-Varying Linear system

ZD Controller for Output Tracking,Setting,Zeroing and Mainta...

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第37届中国控制会议

作者： Mingjie Zhu Yunong Zhang Chumin Li Yang Shi Zhongxian Xue School of Information Science and Technology Sun Yat-sen University Key Laboratory of Autonomous and Networked Control Ministry of Education SYSU-CMU Shunde International Joint Research Institute Key Laboratory of Machine Intelligence and Advanced Computing Ministry of Education

In this paper, with the aid of Zhang dynamics（ZD） method, the ZD controller is designed for output tracking, setting,zeroing and maintaining of time-varying linear（TVL） system. One can see in this paper that ZD controller is an effective controller for output tracking, setting, zeroing and maintaining of TVL system, which can be guaranteed by theoretical ***, to simulate the practical conditions, we make use of ordinary difference equation（ODE） solver to conduct numerical experiments with such a second order TVL system. To verify the efficacy of ZD controller designed for output tracking, setting,zeroing and maintaining of TVL system, we choose different tracking, setting, zeroing and maintaining examples to conduct numerical experiments. By exploiting ZD controller, the error between system output and its desired function practically converges towards zero and remains stable. Numerical experiments verify the efficacy of ZD controller designed for output tracking,setting, zeroing and maintaining of TVL system. It also means that ZD method can also be applied to output tracking, setting,zeroing and maintaining of TVL system, which may just be a small part of potential applications of ZD method.

关键词： Time-varying linear（TVL） system output tracking output setting output zeroing output maintaining

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