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Dynamic Offense And Defense Conversion Strategy Of Robot Soccer Based On Ant Colony System, Xianlun Tang, Jialin Zhou, Lamei Li, Zhang Yi 2020 Key Laboratory of Industrial Internet of Things & Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;

Dynamic Offense And Defense Conversion Strategy Of Robot Soccer Based On Ant Colony System, Xianlun Tang, Jialin Zhou, Lamei Li, Zhang Yi

Journal of System Simulation

Abstract: In order to improve the offense and defense capability of robot soccer, a dynamic offense and defense conversion strategy of robot soccer based on hybrid communication mechanism of ant colony system was proposed. The mechanism enhanced robots' collaboration capabilities and avoided the conflict or task deadlock. The strategy divided the region and established the formation according to the sub-regional pheromone, and the position of the ball was regarded as the drive information. Experimental results in FIRA simulation platform show that the dynamic offense and defense conversion strategy have better performance and improve the global offense and defense capability, so …


Fault Diagnosis For Automobile Coating Equipments Based On Extension Neural Network, Yongwei Ye, Shedong Ren, Lianqiang Ye, Shenhao Ge, Zhiqin Qian 2020 College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;

Fault Diagnosis For Automobile Coating Equipments Based On Extension Neural Network, Yongwei Ye, Shedong Ren, Lianqiang Ye, Shenhao Ge, Zhiqin Qian

Journal of System Simulation

Abstract: Aiming at the difficulty in discovering and eliminating the system faults of automobile coating equipments in time, a new method of fault diagnosis based on extension neural network was proposed. The feature of extension theory was used in managing the structured information through qualitative and quantitative description, and it was also combined by the characteristic of parallel construct in neural network. So the extension reasoning process was completed by means of the parallel distributed processing construct of the network. Matter-element input and output models were established according to the equipment monitoring parameters and fault types for the heating system. …


Polynomial Neural Network With Direct Solutions And Its Interpretation Of Inputs, Shen Wei, Qiushi Li, Yukun Song 2020 Department of Economics and Management of North China Electric Power University, Beijing 102206, China;

Polynomial Neural Network With Direct Solutions And Its Interpretation Of Inputs, Shen Wei, Qiushi Li, Yukun Song

Journal of System Simulation

Abstract: The generalized multivariate polynomial neural network and single-hidden-layer generalized multivariate polynomial neural network were designed and systematically studied, and the existence of the optimal weight vector was proved which could make the network the best approximation polynomial for an unknown function; The concepts of the natural upper and lower nodes in the hidden layer were created, and an indicator “value of importance” was creatively designed and the partial derivative analysis was introduced to solve the problem that the neural network was not able to interpret the relationship between variables. The weight vector directly was solved proving it optimal. In …


Game Theory Based Self-Adaptive Power Control Algorithm For Cognitive Radio Networks, Zhonggui Ma, Ban Sha, Guimei Chen, Linqi Chen 2020 Department of Communication Engineering, School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China;

Game Theory Based Self-Adaptive Power Control Algorithm For Cognitive Radio Networks, Zhonggui Ma, Ban Sha, Guimei Chen, Linqi Chen

Journal of System Simulation

Abstract: In order to meet all cognitive users' demands in the Cognitive Radio Networks(CRNs), non-cooperative game theory was used to model power control in the CRNs, and an adaptive power control algorithm for the CRNs was put forward using payoff unction and comprehensive cost function as utility function. Meanwhile, distances from the base station, stability of the algorithm and the interference between different cognitive users were considered. The existence and uniqueness of the Nash equilibrium were analyzed. By using the comprehensive cost function, each cognitive user in a non-cooperative game becomes cooperative and the Nash equilibrium can be convergent to …


Research On Model Predictive Control With Dual Feedback Based On State Extension, Zho Xilin, Lijuan Yin 2020 Department of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan 430068, China;

Research On Model Predictive Control With Dual Feedback Based On State Extension, Zho Xilin, Lijuan Yin

Journal of System Simulation

Abstract: Depending on the online implementation demand of Model Predictive Control (MPC) for the receding horizon control characteristic, a control strategy of dual feedback structure based on state extension was proposed. The control strategy was aimed to improve the online computational capability about the control system to achieve the control target without any change of the system information. Based on the analysis of the characteristic of MPC, the extension and conversion method of state variable was proposed according to the relationship between state variable, control variable, output variable and system model. And the structure of the control system after state …


Prediction And Estimation Of 95% Distillation Point Diesel In Delayed Coking Unit Based On Kernel Partial Least Squares, Cheng Jian, Lingbo Zhang, Xingsheng Gu 2020 Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China;

Prediction And Estimation Of 95% Distillation Point Diesel In Delayed Coking Unit Based On Kernel Partial Least Squares, Cheng Jian, Lingbo Zhang, Xingsheng Gu

Journal of System Simulation

Abstract: In order to save labor cost and time of 95% distillation point of diesel analysis, and improve the efficiency of adjusting the device, an algorithm was proposed to predict 95% distillation point of diesel based on Kernel Partial Least Squares(KPLS), on the basis of studying the process of delayed coking unit and analyzing the main factors related to 95% distillation point of diesel. The experiment results show that this algorithm can deal with the non-linear relationship among the variables effectively and quickly. Furthermore, the results also show that the model based on KPLS is better than that based on …


Research On Electronic-Protection Circuit Of Chopper Cascade Speed System Based On Matlab, Yongguang Ma, Zhaoyan Zhang, Xingwu Wang, Bingshu Wang, Yaming Yuan 2020 1. Department of Automation North China Electric Power University, Baoding 071003, China;;

Research On Electronic-Protection Circuit Of Chopper Cascade Speed System Based On Matlab, Yongguang Ma, Zhaoyan Zhang, Xingwu Wang, Bingshu Wang, Yaming Yuan

Journal of System Simulation

Abstract: According to the topology of conventional chopper cascade speed system, the transient process of main loop during of contactor operation was analyzed when device failed. Because the contactor action required a longer time, equipment was vulnerable to the impact of high voltage, high current during the contactor action, which caused damage to power electronic devices. For contactors' drawbacks, the main circuit topology with electronic protection circuit was designed. Then transient process of conventional chopper cascade speed system and chopper cascade speed system with electronic protection circuit under high voltage power failure conditions was analyzed, and theoretics was detailedly deduced. …


Infrared Radiation Modeling Of Planets Based On Vsop87 Theory, Guo Feng, Xiaojian Xu 2020 School of Electronic Information Engineering, Beihang University, Beijing 100191, China;

Infrared Radiation Modeling Of Planets Based On Vsop87 Theory, Guo Feng, Xiaojian Xu

Journal of System Simulation

Abstract: Based on the Variations Seculaires des Orbites Planetaires (VSOP) 87 theory, an approach for generating infrared radiant scene of planetary background was presented. With the VSOP87 theory, the heliocentric coordinates of eight planets in the solar system were worked out at given time. The coordinates were revised by time correction so that real coordinates were achieved. The corrected heliocentric ecliptic coordinates of planets were converted into geocentric horizontal coordinates according to the position of the observer. After that, the projected coordinates and projected radiuses of planets were achieved from projection transformation based on the field of view (FOV) and …


Two-Level Systematic Calibration Method Of Fog Strap-Down Inertial Navigation System, Guiling Zhao, Qihang Yang, Li Song 2020 School of Geomatics, Liaoning Technical University, Fuxin 123000, China;

Two-Level Systematic Calibration Method Of Fog Strap-Down Inertial Navigation System, Guiling Zhao, Qihang Yang, Li Song

Journal of System Simulation

Abstract: According to the characteristics of traditional systematic calibration method that of high state variable dimension, poor observability and easy filtering divergence, a two-level systematic calibration method was proposed. By merging the accelerometer calibration errors and FOG calibration errors, the dimension of Kalman filter was reduced. The systematic calibration method took speed error and attitude error as observation vector and designed six positions to estimate the state vector, then decoupled the estimation and calculated the calibration errors. For the characteristics that the estimated time of FOG calibration error was long and the beginning of Kalman filter convergenced rapid, it estimated …


Simulation Study Of Soft Switching Technology For Quasi-Z-Source Boost Converter, Kun Xia, Yanneng Zeng, Ge Yue, Xiaodi Li 2020 School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;

Simulation Study Of Soft Switching Technology For Quasi-Z-Source Boost Converter, Kun Xia, Yanneng Zeng, Ge Yue, Xiaodi Li

Journal of System Simulation

Abstract: With the same input voltage and duty cycle, quasi-Z-source boost converter can provide higher output voltage than traditional boost converter. It has the advantages of high efficiency, wide range of practical output voltage. A quasi-Z-source boost converter topology with soft switching technology was proposed. Using assist switch replaced the diode of original topology, which could accomplish the zero voltage switching on state of the main switch. The MATLAB/Simulink simulation results show that the new topology can reduce the switch stress of main switch and increase the system stability, also it can prolong the life time of switching devices.


Research Progress On Virtual Pruning Fruit Trees, Mengmeng Lü, Shenglian Lu, Xinyu Guo 2020 1. Beijing Research Center for Information Technology in Agriculture, Beijing 100097, China;;2. School of Information Science and Technology, Capital Normal University, Beijing 100048, China;

Research Progress On Virtual Pruning Fruit Trees, Mengmeng Lü, Shenglian Lu, Xinyu Guo

Journal of System Simulation

Abstract: The tree structure has a strong influence on fruit yield and quality, and pruning is one of the most important management measures of tree shapes with high yield and good quality. Pruning test or technology demonstration in real fruit trees are irreversible defects, high cost, and difficult to fast rendering of pruning. Virtual pruning of fruit trees, which is in this context with rapid progress of virtual reality technology has developed rapidly and becomes the hot research topic. The aim is to create a space of virtual and simulate fruit tree pruning and the influence of pruning, so as …


Gait Planning And Control Of Quadruped Robot With High Payload, Hu Nan, Shaoyuan Li, Huang Dan, Gao Feng 2020 1. Department of Automation, Key Laboratory of System Control and Information Processing, Shanghai Jiaotong University, Shanghai 200240, China;;

Gait Planning And Control Of Quadruped Robot With High Payload, Hu Nan, Shaoyuan Li, Huang Dan, Gao Feng

Journal of System Simulation

Abstract: A position controller for a quadruped robot with high payload was proposed. The robot was developed by the lab, and the high payload capacity was realized by the specific design of its actuation system, integrating novel high precision actuators, and by its legs, composed by a new family of parallel mechanisms. The foot trajectory was scheduled based on the Bezier curve in order to improve the stability of quadruped robot. The performance and efficiency of the proposed methods were verified by simulation and experiments.


Light Illumination Simulation Approach For Remote Sensing Image Based On Geometric Mapping, Chenhao Wang 2020 PLA Unit of 91635, Beijing 102249, China;

Light Illumination Simulation Approach For Remote Sensing Image Based On Geometric Mapping, Chenhao Wang

Journal of System Simulation

Abstract: Light Illumination is one of the most important parts of imaging simulation research. A new light illumination simulation approach for remote sensing image based on geometry mapping was proposed. The first step was the geometric calibration of the input image, and the visible light reflection property was extracted by the inverse rendering approach; Second, geometric information of each pixel in the input image was obtained by geometric mapping; and the simulation output of new light illumination condition could be got with the imaging calculation in the image space. Results show that the new approach can achieve simulation image of …


Flow Distribution Simulation About Slipper Pair Of Hydraulic Axial Ram Pump, Wang Hui, Yuning Song, Yejiao Song 2020 1. College of Mechanical and Engineering, Liaoning Technical University, Fuxin 123000, China;;

Flow Distribution Simulation About Slipper Pair Of Hydraulic Axial Ram Pump, Wang Hui, Yuning Song, Yejiao Song

Journal of System Simulation

Abstract: Slipper pair is one of the most important frictional pairs of hydraulic axial ram pump, which is supported by static pressure to facilitate good lubricating. The fluid in the slipper pair was analyzed by using Reynolds number. The length when the flow in plunger damping hole was turbulence was shorter than that when it was laminar. To reduce the leak and prove the performance of slipper, the moisture film of sealing strip should be laminar. The flow distribution of slipper pair was analyzed by FLUENT after the model of moisture film was created. The distribution of pressure and velocity …


Traction Calculation Analysis And Simulation Of Urban Rail Train On Multi-Particle Model, Jianjun Meng, Xiaoqiang Chen, Ruxun Xu, Yanlong Zhang, Tengzhou Wei, Xiaoqi Jiang 2020 School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;

Traction Calculation Analysis And Simulation Of Urban Rail Train On Multi-Particle Model, Jianjun Meng, Xiaoqiang Chen, Ruxun Xu, Yanlong Zhang, Tengzhou Wei, Xiaoqi Jiang

Journal of System Simulation

Abstract: In order to optimize the traction operation of urban rail train, and make the train operation more accurately and closely to the reality, train multi-particle model was established on the basis of train kinematic equations and hybrid optimization traction strategy. Linear interpolation was adopted in the process of traction and braking force analysis, and the selection of braking point was obtained by reverser trial method. Then, according to the set parameters of train and line, traction operation was simulated by Matlab. Simulation results show that multi-particle model compared with single-particle model, can effectively improve precision of additional resistance on …


Numerical Model Of A Radio Frequency Ion Source For Fusion Plasma Using Particle-In-Cell And Finite Difference Time Domain, Augustin L. Griswold 2020 Portland State University

Numerical Model Of A Radio Frequency Ion Source For Fusion Plasma Using Particle-In-Cell And Finite Difference Time Domain, Augustin L. Griswold

University Honors Theses

Radio frequency (RF) plasma sources are common tool for application and study, and of particular interest for inertial electrostatic (IEC) fusion. Computational analysis is often carried out using particle in cell (PIC) methods or finite difference time domain (FDTD). However, a more holistic analysis is necessary as the particle distribution is highly dependant on the fields created by the plasma source. Herein, an analysis of a particular planar RF electrode with deuterium gas is provided which covers the fields and the particle behaviour using first FDTD then PIC. Further applications are discussed as well as further directions for this study.


Study Of Cognitive Model For Survivable System Based On High-Order Multi-Type Π Calculus, Guosheng Zhao, Zhang Nan, Wang Jian 2020 1. College of Computer Science and Information Engineering, Harbin Normal University, Harbin 150025, China;;

Study Of Cognitive Model For Survivable System Based On High-Order Multi-Type Π Calculus, Guosheng Zhao, Zhang Nan, Wang Jian

Journal of System Simulation

Abstract: A cognitive model for survivable system with a multilayer cognitive ability was proposed, and based on high-order multi-type π calculus, combining formal modeling of cognitive model with quantitative analysis of cognitive performance, thus can obtain the quantitative evaluation of system cognitive performance after formal modeling of system operation state, system service and internal structure. A cognitive model for survivable system with a multilayer cognitive ability was proposed. Based on high-order multi-type π calculus, formal modeling of cognitive model for survivable system in two aspects was taken. By using the tool MWB, the tests were achieved about system availability, instantaneous …


Signaling Game Analysis And Simulation On Network Decoy Defense Strategies, Leyi Shi, Junnan Zhao, Li Qin, Wen Xiao, Liu Xin 2020 College of Computer and Communication Engineering, China University of Petroleum, Qingdao 266580, China;

Signaling Game Analysis And Simulation On Network Decoy Defense Strategies, Leyi Shi, Junnan Zhao, Li Qin, Wen Xiao, Liu Xin

Journal of System Simulation

Abstract: The network decoy confrontation is regarded as a kind of observable behavior of a multi-stage signaling game. Four types of gaming models for decoy confrontation process were constructed step by step using signaling game theory, i.e. the normal service, the mixed system of normal service and honeypot, the mixed system with two kinds of signaling, and the mixed system with two kinds of signaling and three actions. In these signaling game models, the server sent a normal signaling or honeypot signaling as the sender, while the attacker chose to access, give up or access in condition as the …


New Energy-Saving Control Of Induction Motor Considering Core Loss, Bulai Wang, Wei Biao, Zhang Fan, Zhenzhen Huang, Yunfei Zhang 2020 1. Shanghai Institute of Technology, Shanghai 201400, China;;

New Energy-Saving Control Of Induction Motor Considering Core Loss, Bulai Wang, Wei Biao, Zhang Fan, Zhenzhen Huang, Yunfei Zhang

Journal of System Simulation

Abstract: In order to further improve the running efficiency of induction motor, a new energy-saving control method was proposed. Considering the influence of varied flux, a control strategy coordinating the optimal flux with the optimal slip angular frequency based on the slip angular frequency control was built. The mathematical model of induction motor considering core loss was established. The expression of the optimal flux and slip angular frequency was obtained according to the Lagrange multiplier method when system was the highest efficiency. By using MATLAB simulation platform, a simulation model of the energy saving control system was built doing a …


Research On Radar Anti-Jamming Performance Evaluation Index System Based On Rough Set Theory, Zongfeng Qi, Han Shan, Jianxun Li 2020 1. The State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, China;;

Research On Radar Anti-Jamming Performance Evaluation Index System Based On Rough Set Theory, Zongfeng Qi, Han Shan, Jianxun Li

Journal of System Simulation

Abstract: The applications of generalized rough set theory were researched for the construction and optimization of radar anti-jamming performance evaluation index system. A mass of real-valued data was converted to some interval-valued data to avoid the difficulty of classification. The H'- information entropy-based information filling technique was employed to solve the problem of missing evaluation data. The E-condition entropy-based heuristic algorithm was applied to make attribute reduction, optimize evaluation index system, and extract final decision rules. The feasibility, validity and practicability of proposed method were testified by a simulation example.


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