SU1649574A1 - Meter of intensity of pulse stream - Google Patents

Abstract

This invention relates to automation and. computing and can be used in automated air traffic control systems for measuring air traffic intensity. The purpose of the invention is to increase accuracy. The device contains three elements AND 1-3, two counters 4 and 5, comparator 6, three elements NOT 7, 9, 15, block 8 division, element OR 10, trigger 11, clock generator 12, pulse shaper 13, delay element 14. 1 il.

Description

The invention relates to automation and computer technology and can be used in automated air traffic control systems for measuring air traffic intensity.

The purpose of the invention is to increase accuracy.

The drawing shows a block diagram of the device.

A device for measuring the intensity of a pulse flow contains the first 1, second 2 and third 3 elements AND, the first 4 and second 5 counters, comparator 6, the first element NOT 7, block 8 division, the third element NOT 9, element OR 10, trigger 11, clock generator 12, pulse shaper 13, delay element 14, second element 15.

The device works as follows.

The intensity of the input stream is determined by the formula

,

where the number of objects N is determined by the ratio

NN f -ie-Ntdt p, (N-1) 1lat e

where P is the confidence probability;

and - confidence interval of values of A.

Pulses are supplied to the information input, the arrival intensity of which must be measured. These impulses can be control panel inputs for aircraft control.

Before the operation of the device, the counters are reset to the second input of the comparator 6 and the number N of measurements in one measurement period is fed to the input of the divisible block 8, which determines the measurement accuracy. A single start pulse is applied to the inputs of blocks 9 and 10, the duration of which is longer than the delay time of element 14. The end of a single pulse causes the device to become operational

ABOUT

Ј h with

h

J

the state in which the counters 5 and 6 are zeroed, the trigger 11 is in the single state, and the AND 1 element is open.

After the end of the submission of the level of the logical unit to the start input and when the first logical unit arrives at the information input, the value of the counter 4 is increased by one, and the trigger 11 is set to the zero state. The signal from the inverse output of the trigger 11 will open the element And 2 and the counter 5 will begin counting the number of pulses of the generator 12.

Each time a pulse arrives, the value of counter 4 increases by one. When the value of the counter 4 coincides with the value of N, at the output of the comparator 6, the signal of the logical unit is turned on, which, through the element, will NOT close the AND 1 element and set the trigger 11 to the one state.

The zero level of the signal from the inverse output of the trigger 11 closes the element And 2, stopping counting the number of pulses of the generator 12. Thus, the measurement of the time interval T, during which exactly N pulses were received.

The signal of the logical unit from the direct output of the trigger 11 is fed to the input of the pulse shaper 13, which, on the leading edge of a single signal, generates a single pulse arriving at element 3 and element 14. The delay of element 14 is longer than the time interval required for the dividing operation by block 8 .

A single impulse from the output of the imaging unit 13 through the open element I 3 arrives at the control input of the division unit 8. In the latter, the number N is divided by the time interval T, i.e. determined by the intensity of the pulse flow

.

the value of which is output to the device.

The signal from the output of the delay element 14 has reset the counters 4 and 5. The drive device is in the initial state.

Claims (1)

Further, the operation of the device is repeated. Invention Formula A device for measuring the intensity of a pulsed stream containing three AND elements, two counters, a trigger and a comparator, the first input of the first AND element being the information input device, the output of the first element And is connected to the counting input of the first counter, the output of which is connected to the first information input of the comparator, the second information input of which is the start input of the device, the output of the second element AND is connected to the counting input of the second counter, characterized in that, in order to increase accuracy, three NOT elements are introduced into it, the OR element, the pulse driver, the division unit, the delay element and the clock generator, the comparator output connected to the first input of the element OR, the output of which is connected to the setup input of the trigger and through the first element NOT to the second input of the first element AND, the direct output of the trigger is connected to the input of the pulse shaper, the output of which is connected with the first input of the third element And with the input of the delay element whose output is connected to the reset inputs of the first and second counters and through the second element NOT to the third input of the first element And whose output is connected to the reset input of the trigger, inverse output which is connected to the first input of the second element And, the second input of which is connected to the output of the clock generator, the input setting the number of objects of the device is connected to the input of a divisible division unit, the input of the divider is connected to the output of the second counter, the device start input is connected to the second input of the OR element and the third element is NOT to the second input of the third element AND, the output of which is connected to the input of the division resolution of the division unit whose output is the output of the device.