Simulation Data-Driven Modeling Approach For Space Information Network,
2019
School of Electronics and Information, Wuhan University, Wuhan 430072, China;
Simulation Data-Driven Modeling Approach For Space Information Network, Yang Xing, Wu Jing, Jianguo Zhou, Jiang Hao, Zhu Jie
Journal of System Simulation
Abstract: Aiming at the problem for the research on the simulation and modeling of the space information network (SIN) with high complexity, a SIN modeling approach based on simulation data is proposed. On this basis, a deep predictive auto-encoder network for SIN performance indicators and a hybrid forecasting analysis model with random forest regression are designed. Due to the characteristics of high dimensionality and wide distribution of SIN performance indicators, with using the deep learning auto-encoder network, the construction of SIN performance index is realized. Combined with the random forest regression model, the relationship model between the network design parameters …
Two-Sided Matching Decision Model Between Task And Resource For Cloud Fusion,
2019
College of the Internet of Things, Jiangnan University, Wuxi 214122, China;
Two-Sided Matching Decision Model Between Task And Resource For Cloud Fusion, Lijun Cheng, Wang Yan
Journal of System Simulation
Abstract: The disjointing of cloud task-to-resource matching link is a prominent problem in the cloud fusion process. Aiming at this problem, a cloud-based fusion task assignment model optimization method based on the improved knowledge migration maximum entropy clustering algorithm (KT-MECA) is proposed, in which the two-sided satisfaction of tasks and resources is considered. The algorithm improves the introduction of historical clustering center knowledge and membership degree knowledge, improves clustering performance and stability, and solves the problem that traditional clustering algorithms cannot be applied to dynamic cloud resource clustering. Considering the two-side subject satisfaction, the result of KT-MECA is applied to …
12-Dimensional Zero Velocity State Updating Intelligent Algorithm For Pedestrian Dead Reckoning,
2019
Beijing Information Science Technology University Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing 100192, China;
12-Dimensional Zero Velocity State Updating Intelligent Algorithm For Pedestrian Dead Reckoning, Hengzhi Liu, Li Qing
Journal of System Simulation
Abstract: For wearable pedestrian strapdown inertial navigation and location devices, the different devices need different pedestrian dead reckoning (PDR) parameters, and the parameters are not such the optimal value that it affects the accuracy. A self-pedestrian navigation and location method based on the 12-dimensional zero-velocity state update intelligent algorithm is proposed, in which three dimensional errors of velocity, angular speed, location and geomagnetism are introduced as the system observations and an intelligent estimator which is formed by the support vector machine (SVM) and Kalman filter is established to estimate the system state error, and therefore the system accuracy is improved. …
Designing A Self-Adaptive Fuzzy Pid Controller For Aircraft Cabin Temperature,
2019
1.School of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300,China; ;
Designing A Self-Adaptive Fuzzy Pid Controller For Aircraft Cabin Temperature, Zongshuai Li, Sibo Zhang
Journal of System Simulation
Abstract: The temperature control system is a highly nonlinear and uncertainty system, and using a conventional PID controller makes it difficult to achieve a good control effect. In this paper, a self-adaptive fuzzy PID controller is described. The model of controlled object is established by combining mechanism modeling with experiment. Aiming at the problem that the parameter range of the self-adaptive fuzzy PID controller varies greatly and is difficult to adjust, a new method is proposed which can easily provide a more reasonable fuzzy controller output variable range. The fuzzy rules based on experts’ experience and knowledge are adopted. The …
Setting Conditions Of U-Turns At Entrances Of Signalized Intersections,
2019
1.School of Highway, Chang’an University, X'an 710064, China; ;
Setting Conditions Of U-Turns At Entrances Of Signalized Intersections, Haipeng Shao, Yuxuan Wang, Xingying Chen, Binbin Zheng
Journal of System Simulation
Abstract: There is a demand for U-turn at intersections of signal controlled intersections. The U-turn conditions required for U-turn vehicles vary with different road and traffic conditions. To determine the appropriate U-turn design conditions at the entrance of the signalized intersection so that vehicles can pass safely and orderly, based on the simulation of the U-turn behavior of the vehicle, the characteristics of the vehicle trajectory are analyzed and a U-turn space discriminant model is established. Based on the theoretical model of vehicle queuing and lane change at signalized intersections, a calculation model for the U-turn setting position is …
Analysis And Optimization Of Hospital Pharmacy Sorting System Based On Simulation,
2019
College of engineering science and technology, Shanghai Ocean University, Shanghai 201306, China;
Analysis And Optimization Of Hospital Pharmacy Sorting System Based On Simulation, Liu Shuang, Lü Chao
Journal of System Simulation
Abstract: The assignment rules are presented by researching system data information with a large Chinese medicine pharmacy sorting system as an object. Based on simulation technology, the system model is presented; the system operation time, cost, efficiency, and assigned laws and human resources configuration as well as many other factors affecting the performance of the system are analyzed. Based on the analysis of the original system, three optimization schemes are designed and compared. The simulation results show that, during the same simulation period, the reallocation of human resources can reduce the economic cost, but it has little improvement on …
Improved Intrusion Weed Algorithm For Solving Flexible Job Shop Scheduling Problem,
2019
Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China;
Improved Intrusion Weed Algorithm For Solving Flexible Job Shop Scheduling Problem, Zhang Xin, Li Ke, Dahu Yan, Zhicheng Ji
Journal of System Simulation
Abstract: An improved invasive weed optimization algorithm is proposed for solving multi-objective flexible job shop scheduling problem (FJSP) with released time and delivery date. The minimum completion time of jobs, the maximum work load of machines and the total work load of all machines are taken as the optimization goals to establish a FJSP model. A random key encoding scheme based on transformed sequences is proposed and a mapping relationship is set up between the continuous space and the discrete space of FJSP. An adaptive Gauss mutation operator is introduced to diversify the population in the process of weed breeding. …
Fault Diagnosis Of High Speed Train Bogie Based On Multi-Domain Fusion Cnn,
2019
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;
Fault Diagnosis Of High Speed Train Bogie Based On Multi-Domain Fusion Cnn, Yunpu Wu, Weidong Jin, Yingkun Huang
Journal of System Simulation
Abstract: The performance degradation and failures of high-speed train bogie components directly threaten the operation security of train. A fault detection method based on multi-domain fusion convolutional neural network is proposed to address the high complexity, high coupling and strong nonlinearity of vibration signals. Noise injection for time domain signal is used to enhance noise robustness and generalization of the model. Signal time-frequency representation information is obtained through embedded time-frequency transformation layer. Adaptive weight-based fusion is implemented through intrinsic characteristics of the convolutional neural network to handle the multi-domain multi-channel information. The experimental results show that the proposed method improves …
Motif-Based Intelligent Mission Planning Method For Uav Swarms,
2019
School of System Engineering, National University of Defense Technology, Changsha 410073, China;
Motif-Based Intelligent Mission Planning Method For Uav Swarms, Weiping Wang, Wang Tao, Xiaobo Li, Jiajie Liu
Journal of System Simulation
Abstract: Due to the restriction of communication among UAV swarms, configuration of UAV swarms needs to be changed dynamically along with the task changes. How to do mission planning under limited communication for UAV swarms has become a hot and difficult question. The UAV combat network motif model framework is built based on the function, and six different types of basic motif model are proposed. Through capability demand and communication demand, a task is mapped into types and numbers of motifs which are required to complete the task. The ‘multidimensional dynamic scheduling list’ method is used to automatically generate mission …
A Hierarchical Control Framework And Key Algorithms Of Multi-Swarm Persistent Surveillance,
2019
School of System Engineering, National University of Defense Technology, Changsha 410073, China;
A Hierarchical Control Framework And Key Algorithms Of Multi-Swarm Persistent Surveillance, Wang Tao, Weiping Wang, Xiaobo Li, Jing Tian
Journal of System Simulation
Abstract: Persistent surveillance is a typical application of multi-swarm aerial vehicle systems (UAVs). And dynamic deployment for multi-swarm UAVs in persistent surveillance has been proved to be a complex problem, especially when the self-adjustment is required to adapt the time-sensitive environment. This paper proposes a multi-swarm hierarchical control scheme and key algorithms. We design the digital turf potential field model to approximate the evolving and interactive information of time-sensitive target features and surveillance effects. Moreover, using the digital turf potential function of each grid as the data point weight, we design a grid-based weighted data-clustering algorithm for the dynamic assignment …
Trust Evaluation Model Based On Fuzzy Set And D-S Evidence Theory In Wireless Sensor Network,
2019
Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi, 214122, China;
Trust Evaluation Model Based On Fuzzy Set And D-S Evidence Theory In Wireless Sensor Network, Zhiping Zhou, Xiaoxiao Zhao, Nannan Shao
Journal of System Simulation
Abstract: A trust evaluation model based on fuzzy set and D-S evidence in wireless sensor network is proposed. Considering security requirements and energy consumption, three typical trust factors are defined to calculate node’s direct trust which is for fuzzy classification by using fuzzy set theory. Fuzzy membership function is the basic belief function of the D-S evidence theory. Indirect trust is obtained from neighbor nodes’ recommendations, the direct trust and indirect trust are fused according to Dempster combination rule after being amended with weight. The effective combination of identity-based cryptosystem and the trust management mechanism improve the security …
Modeling And Simulation Of Bank Network System With Internet Monetary Fund,
2019
Donghua University, Shanghai 200051, China;
Modeling And Simulation Of Bank Network System With Internet Monetary Fund, Fan Hong, Wang Ke, Zhijie Wang
Journal of System Simulation
Abstract: There are some internet monetary funds such as “Yuebao” becoming an important part of banking system in China in recent years. What kinds of the characteristics and stability of the banking system running are the most urgent problem needed to be solved. Based on the method of the network system dynamics, the dynamical relationship between the internet money fund and traditional bank network is analyzed, and a dynamical algorithm and process of borrowing-lending are provided. A simulation model of banking network system with the internet monetary fund is constructed, which can realize the running process of the banking network …
Group Consensus Of Multi-Agent Networks With Multiple Time Delays,
2019
Chongqing key laboratory of Computational Intelligence, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
Group Consensus Of Multi-Agent Networks With Multiple Time Delays, Lianghao Ji, Xinyue Zhao
Journal of System Simulation
Abstract: The group consensus problems for first-order and second-order multi-agent networks with multiple time delays are investigated respectively. Based on the theory of frequency-domain, some algebraic criteria are analytically proposed, which can guarantee the achievement of group consensus. The results show that the input time delays, the coupling weights and the coupling strengths between the agents play key roles in reaching group consensus, whereas communication time delays can only affect the convergence rate of the systems. The validity of the results is verified by several simulated examples.
Progress Of Quantum Information System And Its Scale Model Test,
2019
Air Force Engineering University, Xi’an 710077, China;
Progress Of Quantum Information System And Its Scale Model Test, Miao Qiang, Dewei Wu
Journal of System Simulation
Abstract: In the free-space quantum information technology application fields, such as the quantum communication system, the quantum positioning/navigation system and the quantum radar system, the non-ideal channel environment can cause quantum fading effect to destroy the availability of the whole quantum system. The development of the channel fading experiment of the quantum information transmission system was summarized and analyzed. The scale model experiment idea of the free-space quantum transmission system was put forward: the whole free-space quantum transmission system including the channel environmentwas reduced in size with a big scale factor to establish a scale model system; the operational principle, …
Research And Implementation Of Antisubmarine Combatvisual Simulation System,
2019
School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062, China;
Research And Implementation Of Antisubmarine Combatvisual Simulation System, Zhang Xin, Gao Yan, Zhang Jian, Changbo Wang
Journal of System Simulation
Abstract: This paper constructs visual simulation framework of antisubmarine combat. The sea surface mesh was modeled using projected grid and FFT technologies. Both the sea surface and undersea are finely rendered. The submarine fine rendering algorithm was implemented by considering refraction, Fresnel reflection, Godray and underwater fog effect and using Shader technology, so as to build a realistic battlefield environment. The method of interpolation processing for data in WGS84 coordinates of latitude and longitude through local area network was proposed; the displacement interpolation and rotation interpolation were implemented by calculating the ratio between the current timestamp and both before and …
Forestry Felling & Cultivation Machine Virtual Training System Based On Unity3d,
2019
School of Engineering, Beijing Forestry University,Beijing 100083, China;
Forestry Felling & Cultivation Machine Virtual Training System Based On Unity3d, Bowen Cheng, Yili Zheng, Qingqing Huang, Jinhao Liu
Journal of System Simulation
Abstract: A forestry felling & cultivation machine virtual training system based on Unity3D was developed. The models of forestry felling & cultivation machine were built up using 3dsMAX with the assistance of SolidWorks based on a forestry felling & cultivation machine. The models of forestry felling & cultivation machine and trees were imported into Unity3D to create a virtual operating environment. Each part of forestry felling & cultivation machine needs to be processed for the establishment of paternity in accordance with the simulation, the corresponding mathematical model was established to simulate the motion of the manipulator based on the analysis …
Infrared Scene Generation Technology Based On Hardware-In-The-Loop Simulation Of Mos Resistance Arrays,
2019
1.Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China; ;
Infrared Scene Generation Technology Based On Hardware-In-The-Loop Simulation Of Mos Resistance Arrays, Shanjun Tang, Minmin Song, Biyun Wang, Zhang Yu
Journal of System Simulation
Abstract: To simulate the dynamic infrared scene of infrared guided missile in the hardware-in-the-loop simulation, the researches on the modeling of the target, background and flare and the simulation using MOS resistance arrays are carried out. The infrared countermeasure scene which is applicable to the hardware-in-the-loop simulation is generated by the modeling software, and the infrared radiation model and motion model of the typical target, background and flare are established. The models are verified and corrected by the investigated data of the current main fighters and their infrared flares. The dynamic infrared scene is simulated according to the infrared scene …
Design And Characteristic Analysis Of Floating Flux-Controlled Meminductor Emulator,
2019
School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China;
Design And Characteristic Analysis Of Floating Flux-Controlled Meminductor Emulator, Yang Ling, Shi Ying, Bingmeng Hu, Chen Lu, Su Jing
Journal of System Simulation
Abstract: A mathematical model of a flux-controlled meminductoris proposed, which is directly from the definition. A practical floating flux-controlled meminductor emulator is implemented with common off-the-shelf components based on the model, which does not contain any memristor.In the different signals and parameters, the system-level circuit simulation experiments are presented by Matlab and Multisim simulation platform.The implementation of hardware circuit and the results of performance tests are presented. Software simulation and hardware test results show that the flux-current relation of the equivalent meminductor typically behaves as a pinched hysteresis loop characteristic and depends on the frequencies and amplitudes …
Simulation And Analysis Of Forced Caving Blasting Scheme For Overburden Steep Inclined Strata In Coal Mining,
2019
1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China; ;2. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;
Simulation And Analysis Of Forced Caving Blasting Scheme For Overburden Steep Inclined Strata In Coal Mining, Tiejun Cui, Yundong Ma, Laigui Wang
Journal of System Simulation
Abstract: According to the actual situation of overburden steep inclined strata with horizontal fracture, the reasonable goaf forced caving blasting schemes are studied. Considering overburden characteristic and representative, two schemes are put forward with the attachment perpendicular to their break point locations. By setting different places of blasting points, the different directions of blasting and blasting area are determined, and the overlying strata movement and development characteristics of blasting fracture are analyzed. The overlying strata movement range is larger and can develop to the surface after blasting; The conclusion is that the influence range of the fracture is wide in …
Method And Simulation Of Gradual Rough Milling Based On Surface Deformation,
2019
School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China;
Method And Simulation Of Gradual Rough Milling Based On Surface Deformation, Xiulin Sui, Xiaoqi Chen, Jianghua Ge
Journal of System Simulation
Abstract: In view of uneven allowance and rough surface of traditional equal height stratification for rough milling, a gradual hierarchy process method was proposed. As the model established by T-spline surface has unified parameter domain, an improved variable distance offset method was used to define the rules of surface deformation, and a series of deformation surface sequences were obtained. The cutting depth, tool radius and other machining parameters were used as constraint conditions so as to get the sequence of processing layers. By planning the tool path of each layer, the whole tool path of gradual hierarchy process which was …
