SU936950A1 - Device for measuring time parameters in running - Google Patents

Description

(54) DEVICE FOR MEASURING TIME RUNNING PARAMETERS

one

The invention relates to devices for measuring time and can be used to record the timing of sprint and stayer distance running.

A device for measuring the time running parameters is known, comprising a starting pistol, starting blocks and a photo-finish unit 1.

The drawbacks of the device are low accuracy due to the use of Q electromechanical stopwatches and relays, and narrow functionality, consisting in a small number of monitored parameters.

The purpose of the invention is to improve the accuracy and expansion of functional capabilities.

The goal is achieved by the fact that the device for measuring the running time parameters, containing a starting pistol, starting blocks and photo-photo blocks, has a control panel, bit matching circuits, a memory address generation circuit, an RS flip-flop, a series-connected crystal oscillator, frequency divider, counter, random access memory, a decimal time indicator and the first, second and third registers connected in series whose synchronization inputs are connected to the second output of the divider the first register are connected to sensitive elements of the starting blocks and photo finish, with the first direct inputs of the second register connected to the first inputs of the matching match circuits, and the first inputs of the memory address forming circuit are connected to the second with the outputs of the bit matching circuits, and the first output with the RAM input, the output of the control panel is connected to the second input of the memory address generation circuit, the output of the RS flip-flop connected to the reset inputs of the counter and the frequency divider R input is connected to the second output of the memory address generation circuit and the reset input of the first register, and the S input to the output of the starting and sensing element of the gun.

Claims (1)

The drawing shows a block diagram of a device for measuring running parameters. The device contains a starting pistol 1, starting blocks 2, blocks of photo-finish 3, a series-connected crystal oscillator 4, a frequency divider 5, a counter 6, a random access memory 7 and a decimal time indicator 8 connected in series to the first 9, second 10 and third 11 registers, the synchronization inputs of which are connected to the second output of the frequency divider 5, and the inputs of the first register 9 are connected to the outputs of the starting blocks 2 and photo finish 3, the bit circuits 12 match, the first inputs of which are connected to the direct outputs in the second register 10, and the second the inverse inputs of the third register 11, the memory address generation circuit 13, the first inputs of which are connected to the outputs of the bit matching circuit 12, and the first output to the memory address input 7, the control panel 14 whose output connected to the second input of the memory address generation circuit 13, RS-flip-flop 15, the output of which is connected to the reset inputs of the counter 6 and frequency divider 5, the R input to the second output of the memory address generation circuit 13 and the reset input of the first register 9, and S-input - with the output of the station art pistol 1. The device operates as follows. The signal generated by the starting pistol 1 sets the RS flip-flop 15 to the one state at the moment of the shot, allowing, therefore, the operation of the frequency divider 5 and the counter 6. At intervals determined by the required measurement accuracy the required parameters, the impulses recorded by counter 6 arrive at the input of counter b from the output of divider 5. Thus, the state of counter 6 records the measured time intervals with the required accuracy. At the time of termination of time intervals, which are the measured parameters (time of separation from the starting pad, hands, feet, distance of a certain distance, etc.), sensitive starting pads 2 or photo finish 3, connected to the first inputs of the first register 9, form signals fixed by him. Thus, the state of the first register 9 at the current time instantly corresponds to the activated starting blocks or photo finish 3. The change in the state of the first register 9 is recorded by the second register 10 in the nearest half-period of the measured discrete time, which is ensured by using a double clock frequency (relative to the frequency the signal arriving at the input of the counter 6) for its synchronization. As a result, a mismatch occurs between the states of the second 10 and third 11 registers at the corresponding times de, which causes occurrence of a signal at the output of the corresponding discharge circuit 12 matcher. According to this signal, the memory address generation circuit 13 forms the address of the memory cell location 7 and the state of the counter 6, which is the value of the measured time interval, is recorded in the memory memory cell 7 corresponding to the triggered sensor. The moments of recording information in the random access memory 7 and the changes in the state of the counter 6 are separated in time, which ensures error-free recording of information. Upon expiration of the next half-period of discrete time, the state of the second register 10 is rewritten into the third register 11, which eliminates the mismatch between their states and stops the recording of information in the random access memory 7. Similarly, the fixation and recording in the random-access memory 7 of all measured parameters, except for the last. When the last sensor (as a rule, photo finish 3) of the modem 13, which generates the memory address, triggers the RS-flip-flop 15 and the first register 9 to the initial state. The output signal of the RS flip-flop 15 zeroes the frequency divider 5 and the counter 6, and the device is prepared for a new cycle of operation. The values of the parameters measured in the final stage of the athlete's training are stored in the cells of the random access memory 7. These values can be deduced from the random access memory 7 to the tenth time indicator 8 to monitor them by signals from the remote control 14. The use of the invention makes it possible to increase the accuracy of measurement of running time parameters and increase their number, which ultimately leads to an increase in the effectiveness of training. Claim device Measuring timing of running, containing sensitive elements located on the starting blocks and on the starting gun, photo finish blocks, characterized in that, in order to improve accuracy, it has a control panel, bit matching circuits, memory address shaping circuit , RS flip-flop, series-connected crystal oscillator, frequency divider, counter random access memory and decimal time indicator and series-connected first, second and three s registers, clock inputs are connected to the second output of the frequency divider and the inputs of the first register are connected with the sensitive elements of the starting blocks and photo finish blocks, the first direct inputs of the second register are connected to the first inputs of the coincident discharge circuits, and the corresponding inverse outputs of the third register are connected to the second inputs, the first inputs of the memory address generation circuit match, and the first output - with the RAM input, the output of the control panel is connected to the second input of the memory address generation circuit, the RS output of the trigger is connected to the reset inputs of the counter a frequency divider, an R input is connected to the second output of the memory address shaping circuit and a reset input of the first register, and the S input is connected to the output of a sensitive element of a starting gun. Sources of information taken into account during the examination 1. Device for recording speed. Athletics 1969, No. 1, p. 28