Advanced Materials Research Vols. 926-930

Abstract: To avoid traffic congestion’s becoming the obstruct of social and national economic development is the final goal that professionals in transportation field make great efforts to pursue. At the same time, with the increasing popularity of mobile phones, we can get a lot of phone base station data to identify the residents’ travelling track. Thus we can analyze the residents’ travelling behavior and get residents’ travelling patterns and mechanism. Also, residents’ travelling could be induced and guided in order that the condition of urban transport can be improved. Based on the above background, this paper is mainly based on mobile phone base station data and GIS data analysis method research on the urban transportation of residents’ travelling track.

Abstract: With the growing number of professional sports training or national training began apply motion capture to sports training. Motion capture system is to assist training experts from multiple perspectives to observe trainer movements, and obtain the trainer of multiple motion parameters and physiological indexes, providing a reliable basis for scientific training. This paper develops auxiliary training system for badminton movement based on the analysis of the motion capture device, offering training guidance, rapidly improving the level of the trainer.

Abstract: With the rapid development of sensor technology, access software, body movements and facial expressions to capture system on the development cost, operation effect and efficiency to obtain the optimal balance point, has wide application prospect. This article through to access motion capture analyzing the basic techniques of basketball, basketball developed auxiliary training system, guide the basketball player to carry on the scientific, systematic and comprehensive teaching and training, so as to directly promote the improvement of the overall level of basketball.

Abstract: With the rapid development of computer technology, human motion tracking based on video is a kind of using ordinary camera tracking unmarked human movement technology. It has important application value in automatic monitoring, human-computer interaction, sports analysis and many other fields. This research is a hot research direction in the field of computer vision in recent years. Because of the complexity of the problem and the lack of understanding of the nature of the human visual tracking based on video is always a difficult problem in computer vision. The research content of this article is set in sports training, for motion analysis of non-contact, no interfere with measurement and simulation requirements, the use of computer graphics and computer vision technology, discussing 3D human motion simulation technology based on video analysis.

Abstract: With the rapid development of simulation technology, computer technology and network technology, the application of complex system simulation field expands unceasingly, intuitive, interactive, and the process of simulation fidelity of demand is increasing day by day. Visual simulation technology is a new direction in the development of simulation technology, the modern simulation has injected new vitality. This paper analyzes the sports training under the background of the demand of the visual simulation technology, and the visual simulation system is built, help ensure athletes quickly master the movement technology and maintain a good competitive state, having the vital significance to the development of undertakings of physical culture and sports.

Abstract: With the advent of multimedia technology and the information superhighway, storage and transmission of digital video is no longer a difficult job, different sports events directly led to the explosive growth of sports video data and therefore efficient sports video analysis is necessary. This paper studies basketball video analysis of key technologies, including shot segmentation, rough classification and scoreboard camera detection and location.

Abstract: Table tennis technical and tactical game research has been achieved by the qualitative to quantitative research and then to the interact and change, methods have changed from the past rely solely on the development of statistics to rely on manual methods of modern computing and computer-assisted technology. Computer simulation analysis of ball games provides a new idea for the game of table tennis technical and tactical analysis, part of the study attempts to artificial neural networks and computer simulation of ball games. However, technical and tactical indicators restrict its general nature training and competition practice applications. As an advanced artificial intelligence, machine learning methods has been widely used in data mining, decision support and other areas. In the analysis of the technical and tactical aspects of the game, it has emerged recently, but few people have a comprehensive system analysis, assessment and prediction research. This paper intends to conduct in-depth discussion on this research in order to provide decision support for table tennis.

Abstract: Among the activities of sports management, planning and decision can't run without information, which is also regarded as main basis among organizing and controlling management process .Information systems development must be based on needs of users sports information, by using the methods of software engineering, according to the steps of systems analysis, systems design, systems evaluation and implementation. The purpose of this paper is to grasp the sport science information management concepts, basic theoretical characteristics, content, to provide scientific construction and management for all levels sports organization.. In this paper, structured analysis method to complete the website of CBA and the development of sports information management systems.

Abstract: The VHF radio can overcome line-of-sight transmission by “repeaters,” which pick up weak signals, amplify and retransmit them on a different frequency. However, repeaters can interfere with each other unless they are far enough apart or transmit on sufficiently separated frequencies. In this paper, we propose such a system using the continuous tone-coded squelch system (CTCSS) to mitigate interference problems. This system associates to each repeater a separate sub-audible tone that is transmitted by all users who wish to communicate through that repeater. The repeater responds only to receive signals with its specific tone.

Abstract: IEEE802.15.4 defines MAC and PHY specification for low-rate wireless personal area networks (LR-WPANS), which targets wireless networking among low-rate, low-power and low-cost devices for short range telecommunication. As the wireless sensor network used in ward monitoring system need to handle large amounts of data, this paper proposes an improved backoff algorithm in slotted CSMA/CA by introducing a weighting algorithm of. According to the comparison of and , we can dynamic change the minimum contention window each time at CSMA/CA begins. By NS2 simulation, when the traffic load is large, the delay time, packet loss rate and jitter of the improved dynamic algorithm can be significantly reduced.