Advanced Materials Research Vols. 989-994

Abstract: Based on a hybrid road approach, a reliable process of fatigue load prediction is proposed. This approach known as Time Waveform Replication (TWR) relies on test data and multi-body model. The test data is used to back-calculate the hybrid road profile that will cause the same forces on the multi-body model. The road load is measured on the proving ground, and simulation of the multi-body model is ran by TWR to back-calculate the hybrid road profile. The simulation signals are verified by the experimental signals collected by wheel force transducers (WFT) and acceleration sensors.

Abstract: A novel method is used for assessing the harmonic emission level, which is based on the partial least-squares (PLS) regression with data envelopment analysis (DEA). Based on measuring the harmonic voltage and current at the point of common coupling (PCC) and removing the inefficiency data with DEA, regression coefficients are worked out through partial least-squares algorithm. Consequently the harmonic emission level of customer is calculated.The proposed approach removes the effect of outlying data points and gets accurate estimation results. The simulation results prove that the proposed method is more effective than PLS.

Abstract: Micromouse is a small autonomous robot, which must navigate itself through an unknown maze from the start to the destination, the main challenge for micromouse is to solve the maze and find the optimum path. Detailed design of best-path finder was given. According to the different dash mode combination, dash path of micromouse in complex maze was analyzed. Motion command generator is developed to generate list of the motion commands in order to guide the robot dash from the start to its destination.

Abstract: In view of the problems on communication in double DSP systems, various communication methods are compared and advantages of CAN bus are also presented. This paper introduces hardware and software of communication using with CAN bus in DSP systems. The registers configuration of CAN is described in particular. Data are received by interrupt and stored by double buffer. The scheme has been applied in a UAV flight control system which performs very well.

Abstract: To manage and optimize aerospace test and launch process in real time and dynamically, the aerospace test and launch process dynamic management system based on network diagram method has been designed in this paper. Firstly, we summarize the research status of test process optimization in references to find the shortages in optimization and management. Secondly, we design the system from three aspects including the process design, data management and indexes evaluation, respectively. Subsequently, the software is introduced briefly. Finally, the deficiencies of the system and improvement goal are put forwarded.

Abstract: In recent years, due to the rapid development of computer technology and the expanding of its controlling scale, people pay more and more attention to the study of network control system. Network control system is closed loop control system connecting the communication network connect sensor, controller, actuator etc. At the same time, the introduction of the communication network control system brings a lot of problems, such as data transmission delay, network packet loss and so on, which make the analysis of the network control system become very complicated. This paper analyzes background of the topic, significance and research status, and review the network control system.

Abstract: The influence on the shape of the strip from rolling force fluctuations has been analyzed. The combination of intermediate roll bending and work roll bending has been adopted. The principle of rolling force feed-forward control has been analyzed. The feed-forward control model has been established on the basis of neural networks. The model has been successfully applied to a rolling mill and a good effect has been achieved.

Abstract: The internet is widely used in daily life, of course, also be applied in agriculture. This paper is focus on the technology of ZigBee and serial communication. The ZigBee communication module transfers the data from greenhouse to the monitoring system. Growers can get the data timely, and according to the received data to control greenhouse environment. The monitor computer program is based on VB.NET. ZigBee module gets the data from sensor, through serial ports the information is transferred to the monitor computer. The monitoring software stores the data and displays it on the user interface. If the data beyond the threshold value, the system will give an alarm sounds.

Abstract: This article designed a portable granary thermometer to solve the shortcomings of present similar products ,such as complex structures , high performance price ratio and lack of flexibility , this thermometer used ultra-low power microcontroller MSP430F149 and programmable temperature sensor DS18B20 as the main components, it can collect, display and store the temperature on a real-time basis . Based on actual use, this apparatus possess the advantage of complete function, low power consumption, easy to operate, low price, portable and wide occasions of application etc.

Abstract: This paper introduces the research and design of a light moisture tester. In the coal quality analysis field, moisture test most of the use of infrared heating pipe heating or drying box to measure, low heating rates, nitrogen through a single mode, before heating furnace uniform nitrogen filled with test conditions and have the test conditions, the same way caused by nitrogen, nitrogen waste. Based on this study, the heating pipe comprises an infrared tube into a light tube, the heating rate is improved; the general nitrogen control size flow switching mode using 2.5min before the experiment, large flow quick heating furnace filled with nitrogen, achieved through experimental conditions drying nitrogen, open a small flow, keep the atmosphere. The improved design of a light moisture meter analysis of water air drying method precision test, analysis of water air drying method accuracy experiments, 6 water - air drying method of precision experiment, 6 water - air drying method accuracy experiments, analysis of water through nitrogen drying method precision experiment, analysis of water. Nitrogen drying method accuracy experiments, ¢ 6 full water through nitrogen drying method precision experiment, ¢ 6 full water through nitrogen drying method accuracy experiments, results in line with national standard test, repeatability.