Search results for: Wang Honghui
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Procedia Computer Science > 2017 > 107 > C > 111-116
For the need of improving the capacity of the geohazards monitoring, a professional monitoring system has been developed based on the Internet of things, WSN (Wireless Sensor Network) and network communication technology. The system consists of wireless sensing network, transmission network and data monitoring and analysis center. The WSN technology was used to organize network with displacement,...
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In order to improve the control accuracy and adaptive ability of electro-hydraulic loading system, a back-stepping adaptive friction compensation method based on LuGre-model is presented here. The dynamic model of electro-hydraulic loading system is established, and the friction characteristics based on LuGre model are described. For adapting to the change of frictional model parameters of the system,...
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According to the statistical properties of the nuclear signal pulse on the amplitude and time, a random pulse generator for simulating nuclear radiation signals is designed in this paper. The noise of the ADC acquisition circuit is used to obtain two-way seeds of random number. The obtained seeds of random number are processed by linear feedback shift register (LFSR) to generate high-speed and uniformly...
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Proceedings of the 29th Chinese Control Conference > 2134 - 2138
The stratospheric balloon-borne gondola attitude control system is discussed, and a robust adaptive PID controller is proposed. The attitude control scheme is introduced firstly, and the system mathematical model is established. The attitude control system uses reaction wheel subsystem to control the balloon-borne attitude accurately, and uses the decoupling mechanism subsystem to decrease the speed...
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The robust adaptive decoupling control method is proposed to the helicopter rotor concordant load system. The controller realized the asymptotic tracking of the desired output trajectory, which used the PID controller as closed-loop controller and used the CMAC neural network to approximate the nonlinear and uncertainties. The stability analyses show that the control method has stability. The main...
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Aiming at using different types of heterogeneous database system for enterprises and institutions, we design and implement a global data management and query processing in heterogeneous database information processing system in Intranet, The system adopts structs techniques of MVC pattern, and use Java component technology in enterprise Java Bean component technology to implement the MVC pattern in...
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Natural language processing is one of the most important applications in artificial intelligence (AI), while semantic disambiguation is one of branches and difficulties in natural language processing. This paper introduces three semantic disambiguation models, Bayesian model, hidden Markov model, and maximum entropy model. These three models are used to test and compare with. The results show that...
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It has been documented that astronauts suffer from a progressive and continuous negative calcium balance in space flight. The aim of this trial was to demonstrate the role of force incentive on protection of bone loss in stimulated microgravity rats. 7-week-old male Wistar rats were randomly divided into 3 groups. One group was suspended by tail for 21 days, one groups were suspended for 21 days and...
