Applied Mechanics and Materials Vols. 556-562

Abstract: According to the attitude control equation and the equations of fluid mechanics, build dynamic model .The system simulation method and the MATLAB software were used to study on the aircraft model for several different controller system, which including PID controller, T-S fuzzy controller, The adaptive fuzzy controller design. Analysis of interference signals on the performance of the aircraft control system, consider the overshoot, steady-state error, resistance to load disturbance and parameter changes adaptability, robustness. Finally, It is concluded that different controller of vehicle performance index, and then analysis from the advantages of adaptive fuzzy control in the aspect of aircraft model.

Abstract: Using a programmable logic controller (PLC) technology and sensor detection system,this paper establishes dynamic ventilation control system,and studies the fuzzy temperature control system through PLC control fan [1,2].Intelligent temperature control fan system can drive ventilation motor automatic open and close according to the information input of greenhouse internal environment and external environment,it can achieve the dynamic control of temperature inside the greenhouse,make the temperature of the greenhouse reach the ideal state.

Abstract: Annular heating furnace temperature control is a typical and complex industrial process control system,with the characteristics of multivariable,time-varying parameters,nonlinear,coupling, large inertia and pure delay,so it is difficult to obtain satisfactory control effect when using conventional PID control. In view of the above problems, adopting fuzzy PID algorithm and cascade double-cross limiting control, combustion control effect is greatly improved, self-tuning of PID parameters is realized, and control quality is enhanced. The experimental results show that, fuzzy PID control shows good dynamic and steady performance, its control effect is significantly improved when compared with conventional PID control, and it has better overall performance.

Abstract: For any second-order system, so long as it can be proved that it can be controlled and observed, it can proceed to the design of the observer. The article selects any second-order system, and the first the paper writes the block diagram of transfer function, and proves its controllability and observability, and then carries pole assignment with it. Finally the article designs the observer for the system. Through the simulation software can prove that the second-order system becomes into the stable system from the unstable system through the design of observer.

Abstract: Harvesting ambient energy to power Wireless Sensor Networks (WSNs) is a promising approach. However, due to low recharging rates and the dynamics of renewable energy, energy harvesting sensors are unable to provide sufficient energy for sustained operation. This work designs a novel perpetual topology control that can enhance the energy efficiency and prolong network lifetime in energy harvesting sensor network. The proposed perpetual topology control (PTC) algorithm aims to ensure WSN sustainability and make the harvesting ambient energy usefully. Experimental results demonstrate the superiority of the PDTC algorithm in energy efficient.

Abstract: with the rapid development of science and technology, in all fields of temperature control system of the precision, stability and other requirements of increasingly high, the control system is the myriads of changes. Computer measurement and control technology, the traditional electronic measuring changed dramatically in the principle, function, accuracy and automation degree, degree of automation of the scientific experiment and application engineering to improve. Temperature control key lies in the two aspects of temperature measurement and control. Temperature measurement is based on temperature control, this technology is quite mature. But because of the increasingly complex control object, control in the temperature still exist many problems. This thesis presents the design of industrial temperature resistance furnace computer using PID algorithm, Smith predictive control algorithm, darin algorithm, three algorithms are studied based on the control system, and the control algorithm was simulated using the MATLAB simulation software, and the advanced control algorithm is studied ^[1-3].

Abstract: Currently, most mapping researches are deeply dependent on long range sensors such as sonar, laser range finders or cameras, but due to power or cost constraints, which often cannot be mounted in the sensor module. In response to the no long range sensors situation, this paper presents a method to complete indoor mapping tasks in real-time only using short range sensors installed on the multiple micro-robots. The key mapping problem needed to address in the paper is that each single robot created a map based on odometer and short distance sensor data, and then maps from multiple robots were consolidated to generate a greater coherence map. A kind of SRV mobile robots were tested in an artificial rectangular environment. The experimental results show that the multiple micro-robot system has good robustness to odometer and environmental noise.

Abstract: Considering the coupling of the bed temperature control of sections in ammonia synthesis converter, by means of the analysis for quasi-diagonal recurrent neural network (QDRNN) and the gradient descent method (GMD), a dual-variable decoupling control scheme based on QDRNN is designed in temperature control system of ammonia synthesis converter. The structure and principle of the algorithm has been illustrated in this paper. Through the comparison of simulation results, it shows that the proposed scheme has better control effect than the conventional PID decoupling control scheme.

Abstract: To meet the special requirement of high speed micromouse, FPGA was added into the system. This document explains and demonstrates how to celibate a micromouse based on MCU and FPGA under the help of VB. Micromouse running pictures in the maze illustrate the micromouse prototype and calibration of micromouse very good, which can meet the fast exploration and dashing requirements of micromouse.

Abstract: 6-DOF platform is widely used in large parts assembly, it is important to enhance the control precision of 6-DOF platform in the assembly environment. Base on kinematics analysis, the posture input is converted into the single cylinder commands, which is sent to the single cylinder control system. Then the single cylinder control system is presented. The experimental results verify the effectiveness of the control system.