Applied Mechanics and Materials Vols. 182-183

Abstract: This paper mainly introduces the components of fiberglass reinforced plastic winding automatic control system. According to the model reference adaptive control principle, an algorithm of adaptive control and its gain adjustable controller are presented, which is very suitable for the position servo system control. The control algorithm is relatively simple, and not only has achieved fine effects on the control of fiberglass reinforced plastic winding machines, but also has accomplished with small errors following any given speed as proved in simulations. It is expected that this research can be helpful to the fiberglass reinforced plastic winding technology study and improvements with advanced control strategies.

Abstract: In order to solve the rerouting problem of air traffic management in severe weather areas, a rerouting path planning problem was researched. First, the convex polygon was used to design danger zone. Then, rerouting path planning model was established. After that, a new algorithm used to determine the initial reroute points was proposed. Finally, two examples of the rerouting problem caused by thunderstorms occurring in Southwest China were studied. Compared to the current existing method in real operation, by using this algorithm, the number of reroute points was effectively reduced, and the danger zone was avoided. Additionally, Compared to the geometric algorithm, by using this algorithm, the rerouting path length was reduced by 2.9% and 5% respectively. The results indicate that the algorithm proposed in this paper is effective and practical.

Abstract: In the publishing and printing applications, hidden data is embedded into images for copyright protection and ownership generally. In this paper, a reasonable data hiding method based on noise-balanced error diffusion (NBEDF) is proposed, which is applied in color halftone image. Color image is firstly separated into grayscale images from RGB color space to CMYK color space. Secondly, Floyd-Steinberg error diffusion operator is used, and halftone images will be obtained. Finally,through NBEDF, hidden data is embedded in the halftone image which contains the largest amount of information. The experimental results show that hidden information can be visible , when the corresponding decoded image overlays the color image with hidden information. The data hiding method proposed in this paper can be well applied on security printing.

Abstract: Aiming at the problem of dynamic information system fusion, by using singular rough sets, this paper proposes concepts of F-rough information and its fusion, information relationship measurement, and property theorem for F-rough information relationship measurement. Based on these concepts, it puts forward F-rough information relationship algorithms, the threshold-error theorem of F-rough information fusion, and principles for F-rough information fusion recognition. At last the application of F-rough information fusion is given.

Abstract: From the exploration of unknown or potentially dangerous environments to doing household tasks, robotic applications require localization, i.e., the knowledge of where the robot is located. Localization systems can use the method of dead-reckoning (DR), but error accumulation is a serious problem. Researchers try to solve this problem by employing one or more reference objects in the environment. Unfortunately, all reference objects need to be reset in a new environment. This study proposes a localization method with an electronic compass and proportional-integral-derivative (PID) control in navigation tasks. Experimental results show that this method has some advantages over the methods mentioned above.

Abstract: This paper puts forward one image registration method based on the feature point of the contour, and Introducing the search method based on genetic algorithm .the method can deal with image morphing caused by translation, rotation and zooming change. This method is simple, convenient , feasible and good robustness, and is suitable for the aerial of satellite remote sensing, the plane and UUV underwater detection state information which are rich image for registration.

Abstract: In this paper, a new method is presented to optimize the elevator traffic system based on queue model. The application of this method is studied in detail. Parameters for the elevator running including number of elevator passenger, average waiting time and arriving ratio, and the relationships between them have been analyzed as well. Therefore, the dispatching of elevator dynamic partition can be done. The actual data of rush hours are used for simulation tests. The simulation results show that this method has good performance. The method is a more practical control strategy especially in rush hours.

Abstract: Based on the contour feature point and genetic algorithm, a m ethod of recogn izing occluded images using feature templet is proposed in this paper. The result computer simulation shows that this method is shift, rotation, and scacle invariant, it obtained satisfactory result when the occluded proportion is less 40%.

Abstract: Scene matching combined guidance is one of key effective approach to improve missile’s attacking precision. The paper introduces a scene matching combined guidance system. With the given reference image, the system can match the real-time images accurately through the improved self-learning mean removal normalized product correlation matching arithmetic. At last the paper presents the simulation result in the two typical movement patterns.

Abstract: Web archive is an important technology in the field of data storage and Internet applications. Over the years, many countries have developed various system and prototype. The archive strategy is one of the key elements in Web archive. This paper review the storage strategies developed by several international projects, focusing on the analysis of the four strategies: archiving with external index, archiving with multi- master, format migration archiving, and characteristic described archiving. After summing up the advantages and disadvantages of these strategies, the proposals on the development direction and research content of archive strategy are given at the end of the article.