SU1597817A2 - Apparatus for recording lightning activities - Google Patents

Abstract

The invention relates to meteorological instruments and can be used to record the duration of a thunderstorm, as well as its average and maximum intensity. The aim of the invention is to enhance the functionality by detecting and recording the maximum intensity of a thunderstorm. A third thunderstorm counter, a memory register and a comparison unit are entered into the device. The device additionally determines and records the maximum intensity of a thunderstorm, defined as the maximum number of bits of lightning for a certain period of time. 1 il.

Description

The invention relates to meteorological instruments, can be used to obtain and record information about the duration, average and maximum intensity of thunderstorms and is an improvement to the device according to the author. No. 1509788.

The purpose of the invention is to expand the functionality by automatically detecting and recording the maximum intensity of a thunderstorm.

The drawing shows a block diagram of the device.

The device contains a series-connected antenna 1, unit 2 selection, one-shot 3 ,. a trigger 4, a matching circuit 5, a first pulse counter 6, a first switch 7, an adder 8 and an indicator 9, as well as a clock generator 10, the first output of which is connected to one of the inputs of the matching circuit 5. In addition, the second key 11 and the serially connected driver control pulse generator 12, the second pulse counter 13, the third key 14, division block 15, recorded) 16, as well as the third pulse counter 17, comparison block 18 and register 19. The output of the one-shot 3 is connected to the control input of the first key 7, with the counting inputs of the second counter 13 pulses and the third counter 17 of pulses and the zero input of the first counter 6 pulses, the additional output of which is connected to the input of the driver 12 of the control pulses and the zero reset of the trigger 4, the output of which is connected to another zeroing input of the first counter of 6 pulses. The output of the adder 8 is combined with one of the inputs of the recorder 16 and the input of the third key 14 and one of the outputs of the control pulse driver 12, the second output of which is connected to the trigger input of the recorder 16 and the zero inputs of the adder 8, the second pulse counter 13 pulses. and register 19, the first input of which is connected; c, the counter output of 17 pulses and the first, the input of the block: 18 comparisons, the output is combined with one of the inputs of the recorder 16 and the second input of the comparison block 18, and the enabling input is connected to one of the zero reset inputs of the third pulse counter 17 and the second output of comparator unit 18, whose control input is connected

i

(L

SP

;about

00

ISJ

the second output of the generator is 10 clocks, and the first output is connected to the second zeroing input of the counter 17 pulses.

The device works as follows.

When lightning is discharged, an alternating electromagnetic field appears in the surrounding space. These lightning signals are sensed by antenna 1 and are fed to selection unit 2. Unit 2 selection can

every minute. This pulse arrives at the control input of the comparison unit 18, in which the information received at its first input from the third pulse counter 17 of the pulses is compared with the information in register 19 and arriving at its second input. The comparison unit 18 operates in such a way that if the signal from the register 19 output is less than the signal from the output of the third counter of 17 pulses, then turn off the frequency and amplitude selection of the comparison block 18 on the second signal,

which, as a rewriting signal, will go to the second input of the register 19 for recording information from the third pulse counter 17 and to the first zeroing input of the third pulse pulse counter 17 to reset it. If the signal from the register output is greater than or equal to the signal from the output of the third pulse counter 17, then the first output of the comparison unit 18 is the signal that goes to the second zero reset input. Their main purpose is to isolate the lightning signal from the entire set of electromagnetic signals of thunderstorm and industrial origin. If the amplitude of the signal at the output of the selection unit 2 turns out to be greater than a specified value, then the one-shot 3 is triggered, which performs the functions of the pulse expander. When triggered, the one-shot 3 outputs an output which, as the overwrite signal, goes to the second input of register 19 to record information from the third pulse counter 17 and to the first zero input to the third pulse counter 17 to reset it. If the signal from the register output is greater than or equal to the signal from the output of the third pulse counter 17, then at the first output of the comparator block 18 a signal is received that goes to the second zero reset input 30

pulse duration of 1 s, which eliminates many 20 counter pulses 17 pulses to reset it.

Thus, every minute there is a comparison of the number of lightning bits registered for the last minute by the third counter of 17 pulses with the maximum number of lightning bits 25 registered in one minute in this thunderstorm in register 19, and if more were registered in the last minute the number of zippers than before, this number will be fixed in the recorder 19,; t. E. In register 19, a signal is stored that corresponds to the maximum intensity of a thunderstorm, which is fed to the third input of the recorder 16.

After the arrival of the last lightning, i.e. after the end of a thunderstorm, the first counter of the impulses continues to receive impulses from the first output of the generator 10, therefore, they are counted. After a predetermined predetermined time, for example, after 15 minutes, the first counter of 6 pulses overflows and at its 40 additional output a signal appears that returns trigger 4 to the zero state and starts control driver 12, pulses the output of trigger 4 The first counter is 6 pulses. After starting the imaging unit 12, a multiple-component lightning is recorded, which is fed to the counting input of the second counter 13 pulses, where the total number of lightning is counted and to the counting input of the third counter 17 pulse-cosB, which counts the number of lightning in one minute. The leading edge of the pulse produced by the one-vibrator 3, after the arrival of the electromagnetic sigialog from the first lightning, the trigger 4, assembled according to the scheme with separate start-up, pers. To .. K pgts in one state, and the scheme 5 s (, h 11 days, it is capable of passing clock pulses from the first generator output of 10 clock pulses to the input of pulse counter 6, where they are counted. After the arrival of electromagnetic signals from the second lightning, the output of the one-oscillator 3 again receives a pulse of 1 second duration, which is counted second 13 pulses and a third counter 17 pulses, but cannot change the position of trigger 4, since the latter is assembled according to a separate start scheme. The leading edge of the pulse from the output of the single-vibrator 3 acts on the control input of the first key 7, which opens , and and (formations from the first counter b im35

pulses are transmitted to the adder 8. A control signal appears at its first output. A permit signal arrives at the control inputs of the second key 11 and the third key 14 and opens them.

Information about the time, the duration of the first output pulse of each thunderstorm (T) from the output of the adder 8,

through the second key 11, go to the first input of the division unit 15, and information about the number of lightning bits (N) from the output of the second counter 13 pulses, 55 passed through the third key 14, go to the second input of the division unit 15. At the output of this block, a signal is generated corresponding to the ratio N / T, which

the pulse generated by the one-shot 3, the first pulse counter 6 is zeroed. When the signal of each subsequent lightning arrives, the described operation cycle of the device repeats. The generator 10 may, for example, issue on

for a second, that is, work like an electronic clock. The accumulator 8 accumulates information about the sum of all time intervals between lightning, i.e. the duration of a thunderstorm is determined. The indicator 9 serves to display the information stored in the adder 8. A pulse is output from the second output of the generator 10

every minute. This pulse arrives at the control input of the comparison unit 18, in which the information received at its first input from the third pulse counter 17 of the pulses is compared with the information in register 19 and arriving at its second input. The comparator unit 18 operates in such a way that if the signal from the register 19 output is less than the signal from the output of the third counter of 17 pulses, then the second output of the comparator block 18 has a signal that

which, as a rewriting signal, will go to the second input of the register 19 for recording information from the third pulse counter 17 and to the first zeroing input of the third pulse pulse counter 17 to reset it. If the signal from the register output is greater than or equal to the signal from the output of the third pulse counter 17, then the first output of the comparison unit 18 is a signal that goes to the second zeroing input of the third pulse counter 17 to reset it.

xapaifi -erizes the average intensity of this thunderstorm. This signal is fed to the first input of the recorder 16, to the second input of which information is supplied on the duration of the thunderstorm.

At the second output of the control pulse generator 12, a signal is formed that corresponds to the falling edge of the enabling pulse, which is fed to the control input of the recorder 16 and starts it, and arriving at the zeroing inputs of the second counter 13 of the pulses, register 19 and the adder 8, resets them, After that, the device is in the initial state and is ready to record the duration and determine the average and maximum intensity of the next thunderstorm. The time interval between the last lightning and the return of the device to the initial state is not included in the duration of the thunderstorm, since in this case it does not determine its maximum intensity, which will increase the information content of the data on thunderstorms.

Claims (1)

Invention Formula Device for the registration of thunderstorm activity by ed. St. No. 1509788, distinguished by the fact that, in order to expand the functionality by automatically determining and registering the maximum thunderstorm intensity, a third connected pulse counter and a register as well as a comparison unit, the first input of which is connected to the third counter, are additionally introduced into it pulses, the second input is connected to the register output, the third input is connected to the second output of the clock generator, the first output of the comparison unit is connected to the second input of the register and the first - - .. ..f, v, .. v, "," ,,,, .., pncn. oiuubiM nhidom registo and pemnmm rolling one-shot 3 and, the investigator-20 the input of the third pulse counter but, the transfer of information from the first counter-input of which is connected to the output of a single 6 pulses to the adder of a vibrator, the register output is connected to TTE with The fourth input of the recorder, and the control of the proposed device allows a large register input to be connected to the BTODOMV Ie automatic registration continue-exit pulse shaper control average intensity of thunderstorms determine its maximum intensity, which will increase the information content of data obtained on thunderstorms. Invention Formula Device for the registration of thunderstorm activity by ed. St. No. 1509788, distinguished by the fact that, in order to expand the functionality by automatically detecting and registering the maximum thunderstorm intensity, a third connected pulse counter and a register as well as a comparison unit, the first input of which is connected to the output of the third pulse counter, are additionally entered into it. the second input is connected to the register output, the third input is connected to the second output of the clock, the first output of the comparison unit is connected to the second input of the register and the first .., pncp. oiuubiM nhidom registo and pemnmm the input of the third pulse counter