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The following topics are dealt with: control strategy; human-machine system; multimedia system; database system; robotics; information retrieval; and data analysis.
In this paper, aim at the characteristics of multi-objective multi-constrained and difficult to solve of the three-dimensional container-packing problem, we propose to solve the problem with improved differential evolution (IDE) algorithm. By overloading the evolutionary operation of differential evolution algorithm that we can deal with discrete optimization problems effectively. Define the adaptive...
To develop the production capability and decrease the cost of container terminal is the goal of port enterprises Business Processing Rebuilding (BPR). It is even the important project of studying to every port in the world. This paper shows the innovation approach, which integrated IT technology such as Computing, Communication and Controlling (CCCT), in the BPR of container terminal production. The...
Crossover is the most important step in genetic algorithm, which passes on good genes of the parents to the next generation. However, the crossover operator can't ensure the offspring finding the globally optimum because of its blind search. A weighted crossover operator is proposed to overcome the disadvantages. Weighted values are calculated according to the adaptive values of the parents. One offspring...
A robust fuzzy logic based control system, combined with Kalman filter is proposed to control the speed of sensorless permanent magnet synchronous motor (PMSM) drive system in this paper. A novel speed controller is designed using the concept of fuzzy logic, which ensures robust speed control against parameter variations. Sensorless control of PMSM servo drive is implemented using the Kalman filter...
The problem of considering the setup times in scheduling with non-sequence constraint between operations has been researched, but there are no researches on the problem of considering the setup times in processing and assembly integrated scheduling of complex multi-product dynamic scheduling with sequence constraint between operations. So, a complex multi-product dynamic scheduling algorithm is proposed,...
The control algorithm on coordination behavior of a flocking system consists of three components; they are collision avoidance, cohesion and alignment. The three components are realized by application of interactions between the agents in the system as well as guidance of the environment. To achieve better coordination through interactions between agents, the concept of fuzzy neighborhood is introduced...
In order to achieve seamless handover for real-time applications in the IP Multimedia Subsystem (IMS) of the next-generation network, a multi-protocol combined handover mechanism is proposed. In this work, we combine SIP (Session Initiation Protocol), FMIP (Fast Mobile IPv6 Protocol) and MIH (Media Independent Handover) protocols by cross-layer design and optimize these protocols' signaling flows...
The electrohydraulic servo system of a certain type of mines weeping plough is a complex and nonlinear system. It is difficult to construct its accurate model by first principle method and to achieve satisfactory control performance by traditional PID controller. In this paper, the radial basis function neural network with orthogonal least square learning algorithm is used to model the electrohydraulic...
In view of the degree of the information is not high, the formation of the various parts as a system of “information islands” and other issues in printing and dyeing industry, this paper studied a control system for rotary screen printing machine multi-axis coordinated motion control as the core based on CAN bus, to enhance the multi-axis synergistic motion accuracy as the goal. A study from the following...
The issue of PID controllers designing for a typical class of networked cascade control systems with constant network-induced delays is addressed. Cascade control system, wherein the control loops are closed via a real-time network, is called a networked cascade control system(NCCS for short). The system configuration for a typical class of NCCSs is analyzed, and the locations of the network-induced...
A fault diagnosis method based on information entropy fusion of motor is presented in this paper. Fault feature are extracted though calculating information entropy of collected signal. To improve accuracy of diagnosis, stator current signal, axial vibration signal and radial vibration signal are collected. Based on these eigenvalue of each signal type, primary conclusion is obtained using Neural...
The structures approximation analysis technology is studied based on neural network. The back-propagation neural network model corresponding to the size parameters of the hydraulic press' crossbeam and its displacement or stress is generated to replace the original finite element model in this paper. Using the saturated multi-level table of orthogonal arrays to choose the trained samples could make...
During to the non derivability for triangle wave reference trajectory, whose high-frequency harmonics will stimulate the resonant modes in the high-frequency voice coil motor (VCM), the traditional speed and acceleration feed forwards can not be achieved. In this paper, the triangle wave was Fourier transformed to get its Fourier series composed of several sine functions, which are high order differential...
This paper explores the satellite shield attitude planning for low observable satellites equipped with signature suppression shields. The on-orbit satellite's operational effectiveness and survivability are coupled with its radar cross section (RCS) and laser cross section (LCS) in threat directions, which are determined by the shield's attitude. This paper presents a real-time satellite shield attitude...
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