Advanced Materials Research Vols. 201-203

Abstract: This paper describes a new intelligent storehouse management vehicle system based on image processing and Radio Frequency Identification (RFID) technologies to ensure the security of storehouses of logistics enterprises and improve the efficiency of storage. The vehicle is able to go ahead automatically by visual navigation in storehouses with the function of face recognition and alarm, as well as automatic statistics of commodities. Hough transformation is used to detect straight lines for angle control, and RFID based component is applied to the commodity management. The results show that our vehicle and storehouse management system can successfully fulfill various tasks with high accuracy of performance, which will lead to a practical merchandise application after further improvements.

Abstract: With technology advancement, more and more elements are integrated together. We briefly describe integrated sensors and summarize them into 4 generations, which are bare sensor, integrated analog sensor, integrated digital sensor and autonomous sensor. We propose an application-layer protocol named AgileSN to realize autonomous interchangeability and inter- operability, and made standard tools possible. We propose a novel autonomous sensor based PC test and measurement application development methodology and software tool, in which, a whole application is totally made up of autonomous entities, and the functionality is realized through soft- ware components and their links. We further give the Petri-Net model and a collision-free software bus design, and present an autonomous sensor based PC performance monitor application at last.

Abstract: The principles of the Surface Mount Technology (SMT) product character segmentation and its technology could be described as following: SMT product character image is obtained by image sampling equipment and its ideal binary images is got after image processing. In order to segment the SMT product character effectively, a novel character segmentation algorithm is proposed based on contour feature. Three kinds of information are extracted, one is the up contour feature, another is the under contour feature, the third is the width and the height of the image. Then the position of character segmentation is determined according to the width and height of single character, and character segmentation can be accomplish according to its up contour feature and under contour feature. By analyzing the test result, the proposed approach has excellent properties in character segmentation.

Abstract: To measure and control thermal defects of power station, continuous power is provided to the ZigBee wireless temperature sensors by using monocrystalline silicon solar cells and thermoelectric generation modules, which can collect and process the real-time temperatures of high voltage equipments in the station. Simultaneity, the system can solve the problem that overheat faults can not alarm timely when efficiency of solar cell decreases during the continuous rainy days. The remote real-time controlling is realized by using client and server programs of VC + +.NET. The lossless compression and real-time image transmission are implemented through employing the screen grid-division method and the Huffman compression algorithm. All of these provide a technical assurance to the remote controlling of heat vice of high-voltage equipments in multi-stations.

Abstract: Fuzzy control is a nonlinear control strategy based on fuzzy inference. It shows the people’s operational experience and common sense rules of inference through fuzzy language. For the jigging discharging system, its overall structure and the necessary hardware and software in the process of controlling are designed. And then, the fuzzy control of jigging discharging system is actualized based on S7-300 PLC. After on-site commissioning, the control system can meet the site requirements.

Abstract: To solve the self-control problem of grouting pressure stabilization in grouting engineering, a grouting pressure stabilization control system based on adaptive Fuzzy-PID control was studied. Grouting pressure was dynamically measured and controlled by this system with sensor technology, microcomputer technology and control technology, the interface between the sensor and the host computer was designed. Based on 80C196 chip microcomputer，K_P，K_I and K_D of PID control are automatically adjusted by fuzzy control rule，and electric control valve was controlled to keep grouting pressure precise and stable by adaptive Fuzzy-PID Control. Simulation experiments results show that: the system is able to adapt to changes of object parameter, and achieves the desired targets with good control quality, high accuracy and fine stability.

Abstract: Interdigitated electrodes piezo-actuator has been widely applied in smart structures. Based on the analogy between the equation of inverse piezoelectric effect and piezoelectric strain decomposition, the driving voltage is simulated for mechanical load in this paper. Firstly, stress simulation method of piezoelectric actuators can be employed to the static displacement of piezoelectric cantilever beam and wing-box structure. Then, a modified coefficient is needed to modify the ferroelectric properties of the high voltage of the interdigitated electrodes piezoelectric composite materials. Finally, the experimental results indicate that stress simulation method of piezoelectric actuators is valid, and it can accurately simulate deformation of piezoelectric smart structures. The Error is little, which meets simulation requirements.

Abstract: The most important problem of the Velcro Manufacturer face is to control the surface quality, and how to improve the product quality has become the key of the enterprise. Therefore, this paper take the research on the examination method of the Velcro’s surface flaw, and propose a simply and effectively detection method on the marginal check and the flaw extraction of the buckle in the considering of the system’s real-team and the effectiveness. The experiments have been carried on the results been analyzed under the Visual c + + develop environment. Experimental results show that the system can detect the common defect of the fastening surface accurately and classify them.

Abstract: With the development of the Satellite-Networks, information globalization becomes the tendency of human development. But the Satellite-Networks have some characteristics, such as the diversity of coupling form, the asymmetry of terminal distributing and Satellite-Networks’ opening and so on. Leading the Satellite-Networks faced with faults emerged one after another, so orientating the fault node in time is very important to guarantee the integrality and usability of Satellite-Networks system. According to the layer-driven principles, a new type of trouble hunting system is presented. In it, event detection sequences are viewed as positive selection event database, and a trouble hunting matrix will be built up and analyzed. The experiment shows good trouble location ability.

Abstract: Submarine is a kind of effective underwater weapon and with the development of technology,the noise level is almost equal to ambient ocean noise and making them difficult to be detected by sonar.In this paper,the shortcomings of existing architecture for underwater sensor networks are analyzed and a new architecture for underwater intrusion surveillance based on underwater sensor networks is designed and the research challenge is introduced.