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The Development of Automatic Circle-counting and Timing System Used in Sports

Author: ZhuJianPing
Tutor: WangGuangZhi
School: Tsinghua University
Course: Biomedical Engineering
Keywords: Radio frequency identification Lap Timing Anti-collision
CLC: TH714.1
Type: Master's thesis
Year: 2005
Downloads: 249
Quote: 3
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Abstract


The subject combination of RFID (Radio Frequency Identification) technology, information technology and other high-tech sports competitions for the core design signal receiving and processing equipment, RFID technology, developed automatic lap timing system suitable for long distance races at the sports ground. In the race, the athletes wear on wireless sensor signal receiver, the ID code transmitted by the sensor receiver receives the data through the recording and processing of the data processing system, in order to achieve the automatic lap and distance events timing purposes. The system mainly utilize the method of engineering experimental research design. System design process, research more mature timing equipment and related international standards, intended to be achieved in this system functions and performance indicators need to reach. Then more in-depth study of RFID technology, TI's low-frequency RFID module is selected as the core component of the system. Then, the main use of the means of engineering experiments, RF antenna design research and analysis on a variety of factors that affect the performance of the antenna analysis and experimental design based on multiple sports competitions timing applies to TI low-frequency The RFID RF module antenna matching. Subsequently, a large number of experimental attempts and in-depth analysis, design RFID antenna arrays in the system, the antenna array using a special combination, can effectively cover the runway area at the same time, successfully resolved the RFID anti-collision problems; the same time, through the rational arrangement of the antenna, the electromagnetic coupling between the multiple antennas \In order to achieve fast and effective detection, design experiments and comparison of the three communication control program, and ultimately self-designed communications controller robust implementation of the system needs a high repetition rate of data acquisition. Finally, well-designed user-friendly, full-featured and simple operation of the host software, the software complete the two functions of the data acquisition and processing of the athlete information management and the course of the game. Successfully build system based on system performance testing under a variety of conditions, through a comprehensive experiment to prove that the system performance has basically reached the level of mature equipment, fully capable of moving inside a variety of middle and long distance track and field competition count lap times and extended for marathon athletes density greater competition.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Measuring instruments > Time - measuring instruments > Benchmark ( standard ) timing equipment
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