SU1462383A1 - Device for assisting referies of major athletic events - Google Patents

Abstract

The invention relates to the field of automation, to time measurement systems in sports, and windshield can be used to judge mass competitions in athletics and other sports. The purpose of the invention is to increase the information content of the device. The device contains a loop antenna I, General; torus 2, high frequency, finishing npHf-. The capacitive channels 3, consisting of antennas 4, receivers 5 and switches 6. In addition, the device contains a starting driver 7, a recording unit 8, measure 9 time intervals and individual athletes blocks 10 consisting of antenna I 1, receiver 12, shaper 13 pulses, shaper 14 individual code and transmitter 15. When an athlete crosses the finish line, the athlete's block 10 triggers, the code through the transmitter 15 enters channel 3 and is recorded in block 8 along with the time code from the meter 9. 1 Il. & (L

Description

The invention relates to automation, in particular, to time measurement systems in sports, and can be used for refereeing mass competitions in athletics and a number of other sports.

The purpose of the invention is to increase the information content of the device by increasing the number of competitors served. ) The drawing shows the structural scheme of the device.

The device includes loop antenna 1, connected to high frequency generator 2, finishing receiving channels Sj each of which contains antenna 4 connected to receiver 5, the output of which is connected (via switch 6 to block 7 register) radium, which is associated with the formation of 1 pulse of 8 start pulses through the meter (9 time intervals, as well as individual blocks 10 of the athlete, according to the number of competitors, each of which consists of successively connected antennas 11, receiver 12, and former of 13 pulses form bodies 14 of an individual code, transmitter 15 and autonomous power source 16.

i Block 7 is registered from a computer, i The device works as follows: IpasoM,

An I-loop antenna 1, feeding at a high frequency current from a high frequency generator 2, creates around itself an alternating magnetic field with a frequency f. At the start, the driver of the start pulse 8 associated with the start sensor, which can be, for example, a starting gun equipped with electrical contacts, generates a start signal and starts the meter 9 of time intervals, while the recording unit 7 allows finishing reception channels 3. At the finish, athletes are randomly distributed along the treadmills. When athletes get closer to the finish line, the antenna 11 of the individual block 10 of the athlete enters the magnetic field created by the finish loop antenna 1, in which an emf with a frequency ft is applied to the input of the receiver 12. The maximum voltage at the output of the receiver I2 is observed at the time of intersection line athletes

finish line At this moment, the pulse shaper 13 generates an impulse that triggers the shaper 14 of an individual code that triggers the transmitter 15 and modulates its signal with a code wire that carries information about the number of the finish athlete. The transmitter antenna 15 is inductively coupled to the antenna 4 of the finishing receiver channel 3, corresponding to its chosen finish track, therefore, EMF with a frequency f is induced in antenna 4, modulated by the individual code of the finishing athlete. This. The EMF is applied to the receiver 5, the signal from the output of which enters the switch 6, which enters the received code of the finish athlete in the registration unit 7. At the same time, the result is inputted from the meter 9 time intervals. After the end of the competition, the registration unit 7 forms and prints the finishing protocol.

Antenna 1 can be made in the form of a loop of insulated wire laid under the cover of the sports equipment. The optimal loop width depends on the height of the individual block of 10 athletes and when placed on the track is about 1 m. The loop length is determined by the number of finish tracks, which depends on the maximum possible flux density of athletes at the finish and must ensure their unimpeded movement finish line, one within each track The width of the track is chosen sufficient to move the athletes one by one, but excluding their parallel movement within one track and The distance between the tracks must ensure attenuation of the signal from transmitter 15, traveling along the adjacent track, sufficient for separate reception without mutual interference by antennas of 4 signals of transmitters 15, simultaneously finishing along different tracks.

Claims (1)

Invention Formula A device for judging mass events, containing a loop antenna located in the finish area, a starting impulse conditioner, an output which is connected to the inputs of the time interval meter, individual blocks of the athlete, each of which is made of a transmitter, characterized in that, in order to increase the information content of the device, a high-frequency generator, a recording block, finishing channels are entered into it, Completed from series-connected antenna, receiver and switch, the antenna of each finishing line at the receiving channel is located on the corresponding treadmill in the finish area, each individual unit athlete is equipped with an antenna, receiver, pulse shaper and code driver that are connected in series, the output of the code generator is connected to the transmitter input of the individual athlete unit, the output of the time interval meter is connected to the first input of the peristication unit, the outputs of which are connected to the inputs of the finishing switches of the output unit , the outputs of the KPBP are connected to the second inputs of the recording unit, the output of the high-frequency generator is connected to the input of the loop antenna.