Advanced Materials Research Vols. 850-851

Abstract: This paper presents a smart classroom broadcasting system using WSN technology. Different from other online broadcasting systems, it adopted ZigBee module JN5148 as microcontroller. Text or audio files were sent to the radio terminal in network data packets through the coordinator. It has achieved wireless transmission and intelligent release of personalized voice and ringtone, real-time control of fire alarm and security monitoring . Test results show that ZigBee network operates stably, the broadcasting system embeded ZigBee techology does not need complex wiring installation .The whole system is easy to maintain. It also meets the the application requirements for current broadcast technology .

Abstract: With the popularization of shopping online, C2C e-commerce website has become one part of net citizens’ lives. Research on spread communication model shall have a great significance to the spread and popularization of C2C e-commerce website. In accordance with C2C e-commerce model, the paper shall mainly illustrate three major application aspects, including target audience analysis, content requirement of communication, and communication strategy application.

Abstract: In this paper, on the basis of the nibble-based faulty model and the differential analysis principle, we propose a kind of attack on the new low-cost LED block cipher which combine differential fault attack with meet-in-the-middle attack. We inject the nibble faulty at round 29, which is earlier than other papers. More precisely, ciphertext need to be multiplied by a matrix before add the key in order to reduce the effect from key spreading. Finally, the key candidates are recovered by solving the equation set. Hence the secret key bits can be recovered faster than exhaustive search.

Abstract: The self-organizing thought of the network resource based on Web2.0 can innovatively combine the web page and instant communication, realize the function for the normal user to add, find and enter into the chat room for any web page at the client side, and the users browsing the same URL and website can enter into the same chat room to communication, thus providing the communication place for all users visiting the same web page and achieving the aim to improve the visitor activity, user viscosity and visitor conversion rate of the site.

Abstract: Video-based fire detector is one of fire detecting methods. A key problem of video-based fire detector is to accurately recognize a fire and estimate the fire centroid. Then a fire detecting method based on Otsu and Canny algorithm was proposed for a video-based fire detector which was developed our latest work. Moreover, a candle flame and lighter flame were introduced to do fire detecting test to evaluate the proposed method. Experimental results showed that the method could well recognize the flame.

Abstract: This paper analyzes the development process of the Internet of things and its four key technology, and embedded that system was put forward in the application of Internet of things; The development of the Internet of things is the inevitable outcome of the times development, are bound to change the traditional experience and cognition of the existing, make our perception of the world into the future.

Abstract: In this paper, local synchronization problem of complex networks is theoretically and numerically studied. Base on the Lyapunov stability theory, a sufficient criterion for local synchronization of complex network which have the time-varying connection topologies is derived via designed decentralized linear controllers. And a numerical example of typical the Rössler network system with time-varying linear coupling has been used to demonstrate and verify the proposed. And, the simulation results show the effectiveness of proposed synchronization approaches.

Abstract: Most Current researches about the police adaptive wireless communication are concentrated on the area of the time-invariant channel model, which is not fit to the requirement of police application. This paper designed an time-variant ISI channel model, according to the characteristics of police wireless communication. And analyzed the performance of the LMS and the RLS algorithms in DFE structure adaptive equalizers, under the time-variant ISI channel model. Simulation shows that the designed adaptive equalizers obtained excellent performance.

Abstract: An inverted pendulum is a classic control problem and is widely used as a benchmark for testing various control algorithms. First, this paper analyse the dynamic and non-linear model of the inverted pendulum, then focus on the real-time control of the inverted pendulum, we developed real-time control software for the single-stage inverted pendulum by using Visual C++ 2010, its mainly operate API functions to control board and implement various control algorithms.

Abstract: A novel data mart based system for fishery rescue field was designed and implemented. The system runs ETL process to deal with original data from various databases and data warehouses, and then reorganized the data into the fishery rescue data mart. Next, online analytical processing (OLAP) are carried out and statistical reports are generated automatically. Particularly, quick configuration schemes are designed to configure query dimensions and OLAP data sets. The configuration file will be transformed into statistic interfaces automatically through a wizard-style process. The system provides various forms of reporting files, including crystal reports, flash graphical reports, and two-dimensional data grids. In addition, a wizard style interface was designed to guide users customizing inquiry processes, making it possible for nontechnical staffs to access customized reports. Characterized by quick configuration, safeness and flexibility, the system has been successfully applied in city fishery rescue department