System Overview 

 In track and field, marathon, triathlon, cycling, motorcycle, cross-country skiing, short track speed skating and many other sporting events, the athletes need to record the movement from the beginning to the end of time and has rank tend to be more ancient and classical approach is artificial pinch stopwatch. With the development of technology, the emergence of infrared timing device, the end of automatic electronic photography / video timing devices [1]. As the infrared timing device can only record the results when the athlete crossed the finish line, can not determine the ranking order of athletes over the finish line, when many athletes over the finish line at the same time, you can not record each athlete's performance. The end of automatic electronic photography / video timing device can record and save the image when the athlete crossed the finish line and time information, when necessary, by adjusting the time or the time the film image to read the sequence of ranking athletes and exercise time. Since the device can be stored for a long time to image, re-inspection, and is widely used in athletics, cycling, rowing, canoeing, motorcycles and other race items. But the device also has some limitations: it is more suitable for short distance, the number of dozens of athletes in each group were the following, lane, timing accuracy is not less than 1 / 100 second project; and for big road, dozens of athletes even more than people, timing accuracy for the second-class items (such as track and field distance running, walking, marathon, cycling, etc.), to accurately record the athletes reach the end of the ranking is very difficult and requires the referee to assist manual lap, not only difficult, but The referee needs the large number of error-prone manual recording still not sure. In addition, the marathon, because too many athletes, sometimes starting with the first departure of the last person to leave the starting line can be separated by several minutes, automatic end electronic photography / video equipment is difficult to meet the timing requirements of the game, can not be completely accurate accurate record of each athlete rankings and results. 

 Middle-distance track and field (5 km, 10 km, 10 km walking, 20 km race walking, etc.), dozens of athletes in the 400-meter race on a track, varies, and accurate records of every athlete traveling number of turns, has been a major problem: for many years has been the referee put the board through the manual and manual records and other forms of art forms, in addition to a lot of manpower and material resources, but also there is the inevitable human errors affect the accuracy of results. However, track and field competition of the non-repetitive decision: not because the referee's mistakes and let the players replay (such as China's second session of the National Games track and field, ten thousand meters a small circle in mind, leaving the vision of which ten thousand meters without performance ), and therefore has a high accuracy and reliability requirements, the special needs of high-tech race electronic equipment - Automatic lap equipment, and electronic camera with fully automatic timing devices end the combination of accurate interpretation of results and achievements of athletes ensure that the game open, fair and just. Cycling, short track speed skating and other projects as well. 

 To this end, we combine the radio frequency identification in today's high technology, developed for long-distance race in the games automatic lap timing system. 

 System works and the basic composition 
 Accounting exercise using Cryptag Census loop system and advanced radio frequency identification systems, RFID technology, computer information processing and other high-tech with the combination of sports competitions, easy to carry without affecting their competitive athletes, state identification card when the player with a radio frequency coil through time, reader antenna can be immediately detected by the card information, then read the card reader connected to a computer, computer to get information about athletes, and use special software to make a series of information processing. Will be collected by the system software to the card information corresponding to the corresponding player information, statistics, game situation, in order to achieve automatic lap timing and purpose of long-distance project automatically. Sydney 2000 Olympic Games Winter Olympics and the United States on the use of proximity cards Cryptag Census lap time for the Games. 

 Main functions are: 1, statistics athletes: After the game, the computer that the statistics of each athlete's OD time, the number of completed laps, fastest lap time, and other ranking results, and print transcripts; 2, showing the game live: The computer processing of information, can the big screen or TV screen, real-time, dynamic display live game, intense scores and clear; 3 store game records: recorded by the computer records of all games available for viewing or printing at any time, for the stadium management, financial management, vehicle management, to provide factual data. 

 The entire system by the remote reader, RF antenna, remote sensing card, control computer and software of four parts. 
 Long-distance race to achieve automatic timing function 

 In the marathon, triathlon, cross-country skiing competition, the start line in the game put an antenna, reader and the corresponding control system, the finish line in the race to place another antenna, reader and control system. When the starting gun, athletes began to start, the sound signal to start issuing the order the system timer start time, but many athletes, up to hundreds or even thousands of people, these athletes can not simultaneously in the starting line, to leave the starting line there is the time difference To this end, the application of the system can solve this problem: When athletes go through the starting line at each antenna, the control system receives the reader to send the athletes to carry the characteristic information, and record the corresponding passage of time, pass to control the computer storage. When athletes finish the course, to reach the finish line, at the finish line at the antenna end of each athlete reach the reader to carry the signal, processed by the control system to confirm the identity of athletes, and record the corresponding moment, to pass control computer, processed automatically by a computer to calculate the athletes and the corresponding ranking. 

 Lap function to achieve 

 For track and field, skating rink and other mid-pitch, long-distance competition, athletes have to travel a few times at the venue to the dozens of rings, the ring road need to record the number of athletes in order to confirm whether athletes finish the course. To this end a system installed at the finish line and the reader antenna, and can be issued to each athlete to carry the different characteristics of the sensor card information, when the players heard the gun sound, start, the athletes with every finish line, at the end line at the antenna to the card players to carry the signals from sensors, processed by the reader, to identify the identity of the athletes, and record the appropriate number of turns, thus completing the athletes automatically record all the purpose of moving turns . 

 Conclusion 

 The system is based on radio frequency identification technology, study and solve the long-distance long-standing record of sports athletes travel time results of number of turns and urgent issue, which has obvious practical significance. Its successful development will enhance China's competitive sports referee level, high-tech equipment to improve competition, so that our domestic and international sporting events held on a stage further with international standards.