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One, system overview

In track and field, a marathon, iron man three, bicycle, motorcycle, cross-country skiing, speed skating and many other sports, athletes need records from the beginning to the end of the movement time and has rank, general comparison of ancient and classical method is artificial pinch stopwatch. With the development of science and technology, appeared the infrared timing device, terminal automatic electronic photography / video timing device [1 ]. Because the infrared timing devices can only record players crossed the finish line at the time, could not determine the player crosses the finish line to the ranking order, when many athletes also crossed the line, cannot be recorded for each athlete's performance. And the end of fully automatic electronic photography / video timing device can record and save the player across the finish line of the image and the time information, when required, through out time film or timing image readout athletes has position and movement time. As a result of the device can be stored for a long term time image, repeatable inspection, and widely used for athletics, cycling, rowing, canoeing, and motorcycle competitions project. The device but also has some limitations: it is suitable for short distance, each athlete number in the dozens, lane following, the timing precision of not less than 1 / 100 of a second project; and to not lane, athletes in more than dozens of people and million people, timing accuracy for the second project ( such as track and field running, race walking a marathon, bicycle, etc), to record the player at the end position is very difficult, need a referee to assist manual gauge ring, not only difficult, and requires the amount is huge, artificial records also very prone to error, unable to ensure no danger of anything going wrong. In addition, on a marathon match, because the players too much, sometimes the first one to start and end a starting left the starting line can be separated by tens of minutes, automatic terminal electronic photography / video timing equipment is difficult to meet the requirements of competition, cannot be completely accurate records of each player ranking and the results.

On track and field in running (5 km, 10 km, 10 km, 20 km race walking and other ), dozens of athletes on the 400 meters of the runway on the game, level uneven, accurate records of each athlete running laps, has always been a big problem: for many years has been the referee by artificial pendulum board and artificial painting form form records, in addition to spend a lot of manpower and material resources, but also the inevitable human errors, affect result accuracy. However, the track and field competition can not be repetitive decision: not because the referee mistakes and allowing players to replay ( such as China's second national games, ten thousand meters less on a circle, and make the Games meters without success ), so the accuracy and reliability of high requirements, special need high-tech competition electronic equipment -- automatic coil device, and with the end of full automatic electronic camera timing device combining, accurate interpretation of the placings and achievement, ensure that the game is open, fair, justice. In track cycling, short track speed skating and other projects too.

To this end, we combine the radio frequency recognition of this one new and high technology, developed for the middle and long distance Race Games automatic timer ring system.

In two, the working principle of the system and its basic components

Campaign accounting circle system using Cryptag Census radio frequency identification system and advanced RFID technology, computer information processing technology and sports competition for athletes to carry a combination, and do not affect the competitive state, when a player with radio frequency identification card through a timing coil, a card reading antenna can be immediately detected by the card information, read card device to read the numbers to the connected computer, computer to get information about the athletes, and use special software to make a series of processing information. The system software will collect the card information and corresponding athlete information corresponding to, statistics of competitions, thereby realizing the automatic gauge ring and on long distance automatic timing purpose project. The 2000 Olympic Games in Sydney and the United States Olympic Winter Games will use Cryptag Census card used for Games timing gauge ring.

The main functions of the system are: 1, the statistical scores: after the end of the game, the computer that the statistics of the player start time, laps completed, the fastest lap time, as well as the ranking results, and print the report; 2, show live game: after processing by computer information, through the big screen or television screen, instant, dynamic display of the live games, intense match stick out a mile; 3, save race record by computer records: All Games record, available to view or print, competition management, financial management, vehicle management and provide truthful data.

The whole system is composed of remote reader, antenna, remote control card, computer and software is composed of four parts.

In 1, CR1AMS remote reader

Product characteristics:

Card reading distance, providing 25cm - 4.5m reading distance

Mounting the channel width, a card width range up to 3 to 24 meters

For a plurality of electronic card for simultaneous identification, can simultaneously identify 55 cards per second

Fast identification speed, reading speed of up to 100 km / h

Convenient installation, the antenna has the advantages of simple production method

Card no restriction of the direction, 360 degrees at any angle can read,

Truly automatic recognition,

To achieve the accurate import and direction judgment

Can be used for the automatic identification of goods vehicles or personnel

Low battery alarm card

At the same time provide 26 / 34 Wiegand, RS232 output

Operating frequency: the frequency 153KHZ; receiving frequency 115KHZ;

FCC certification

Product application:

Application areas: athletes competition timing system, article or personnel tracking, control or location, such as the airport personnel within the channel safety control management system, parking management and vehicle automatic toll collection management, karting timing system. Flexible working mode, the card reader can be prepared into as many as 10 working mode, applied to different occasions.

In 2, TC5SA card:

Product characteristics:

Read distance: using CR 1A 2m x 2m reader and an external antenna, without interference, the card reading distance of up to 2.5 meters, using an internal antenna, a card reading distance of up to 1 meters

Multiple reads: in CR 1A reader can identify 55 card

The card reading speed: in CR 1A reader of up to 100 km / h.

Technical parameters:

Work life: using the CR1225 button battery, the battery can be replaced, battery life 1 years

Working temperature: - 20 to + 60 degrees C.

Operating frequency: 153KHZ;

Dimensions: the outside diameter 35mm;

Color: white, black, transparent red black

American FCC certification

Product application:

Can be worn on the feet, 2.5 meters of distance of reading card, can be used as an identification card, staff to move at speeds up to 100 km / h, 64 card code, chaos sequence encryption communication, misunderstanding rate below 1000000000 points 1, card without direction limit, 360 degrees at any angle can read, low - to the human body without any harm, automatic recognition, CE, DTI, FCC certification. Suited to the requirements of the card reading distance, fast identification speed and requirements for a plurality of electronic card for simultaneous identification of application areas, such as access control channel management system, sports timing system and automatic attendance management system.

In three, the long distance race is automatic timing function realization

In a marathon, iron man three, cross-country skiing and other game, in the game the starting line placed an antenna, a card reader and a corresponding control system, in the race to the finish line placed another set of antenna, card reader and control system. When the starting gun, players start, the voice signal to start the timer begins timing system, but because of many athletes, up to hundreds or even thousands, of these athletes could not simultaneously on the same scratch line, leave the starting line is the existence of the time difference, therefore, the application of the system will be able to resolve this problem: when every name athletes after the starting line antenna, control system receives the athletes to carry a card reader sends the feature information, and recorded by the moment, to control a computer storage. When the player to finish the course, to reach the terminal, located at the finish line at the end of the antenna for receiving each athlete carrying the reader sends signals, the control system after treatment, confirm the athlete, and record the corresponding moment, passed to the control computer, by the computer automatic processing, and thus calculate the athletes' performance and the corresponding rank.

Four, gauge ring function realization

In track and field, skating rink, the venue to carry out medium, long distance races, athletes should present expert into laps to dozens of circle, need to record player running laps, to confirm whether the entire run athletes. Therefore at the finish line to install a system antenna and the reader, and to every athlete carrying can emit different feature information card, when the player hears the gunshot, after the start, players after each goal line, located at the finish line to the antenna to receive athlete carrying card signals, by the card reader after treatment, identify the player 's identity, and record the corresponding number of turns, thus completing the automatic recording of all competitors running laps purpose.

Five, conclusion

The system is based on radio frequency identification technology as the basis, study and solve the long distance sports long-standing record players moving ring number and time performance of urgent problems, has obvious practical significance. Its development is successful, will improve our sports level of judges, enhance competition in the high-tech equipment, so that our country hold domestic and international sports a step further, with the international standards.

System design:

Scheme 1, use the CR 1A - MS reader and TC 5A card:

System topology:

Attachment:

In 1, Cryptag Census RS232 communication protocol:

Baud rate ( Baud Rate ): 9600;

Data bits ( Data bits ): 8;

Parity ( Parity ): no;

Stop bit ( Stop bits ): 1

Card reader standard output format: [ five decimal HID] [ :] [ five decimal PID] [ LF] [ CR]

LF, CR as the carriage return, linefeed.

For example: HID 00102, PID 00012 electronic card in the card reader on the output of:

00102: 00012 [ LF] [ CR],

2, configuration and price list:

Product name specifications quantity remark

In 1 card reader CR 1A - MS 2

2 long distance card TC5SA 100

3 special linear power 4NIC-X21 2

The 46 single strand copper 62 mm 150 meters power, antenna, 6 mm thick,

5 ZR-RVSP4x 0.5mm 100 meters for communication line