SU1370736A2 - Random flow transmitter - Google Patents

Abstract

The invention relates to a pulse technique and serves to expand the functionality of the device. The sensor contains key 2 and 3, elements AND 4 and 5, counters 6 and 7, control trigger 8, element OR 9, and tires 10.12 ... 14 power supply clock pulses and output. The introduction of the controlled frequency divider 1 and the control bus 11 allows the formation of pulse streams with random values of their duration and provides a longitudinal adjustment of the characteristics of the laws of the distribution of pulse durations and time intervals. 2 Il.

Description

Fig, G

eleven

The invention relates to a pulse technique and can be used in radio engineering and computer engineering.

The aim of the invention is to expand the functionality of the sensor by forming a stream of pulses with random values of their duration and ensuring separate adjustment of the characteristics of the laws of the distribution of pulse durations and time intervals.

FIG. 1 is a functional diagram of a random flow sensor in FIG. 2 - time diagrams of his work.

The random flow sensor (Fig. 1) contains a controlled frequency divider 1, the first 2 and second 3 keys, the first 4 and second 5 elements And, the outputs of which are connected to the counting inputs of the first 6 and second 7 counters, respectively, the outputs of which are connected to the inputs accordingly

1 in and in O of the control trigger 8, the inputs of the installation in 1 and in O which are connected respectively to the first and second inputs of the OR element 9, the bus 10 clock pulses, the control bus 11, the power bus 12 connected to the first inputs of the first 2 and second 3 keys, the outputs of which are connected respectively to the power buses of the first 6 and second 7 meters. The clock bus 10 is connected to the first input of the first element AND A and to the synchronization input of a controlled frequency divider 1, the output of which is connected to the first input of the second element 5, the second input of which is connected to the second input of the second key 3 and to the forward output of the trigger 8 control, the inverse output of which is connected to the second input of the first key 2 and to the second input of the first element AND 4. The control buses 11 are connected to the corresponding inputs of the controlled frequency divider 1. The output signals of the device are removed from the first 13 and second 14 output buses.

Sensor random flow works as follows.

A control code is applied to the control buses 11 defining the division ratio of the controlled frequency divider 1. At the moment of supplying the supply voltage, the control trigger 8 is set

Q

five

0 5

0

five

0

five

0

randomly to one or zero state. Suppose that first the control trigger 8 is set to the zero state (see FIG. 2 for the inverse output), while the first counter fi is recorded with a random value of the initial code K due to the installation of the discharge triggers of this counter with an arbitrary obphase at the moment of power supply through the first key 2. The first (k-bit) counter 6 counts the clock pulses (figure 2 a), arriving with a period T on the bus 10 clock pulses

through the first element And 4. After the counting input of the first counter

6, a 2 - K clock pulse will be received, an overflow signal appears at the overflow output of this counter (Fig. 2g), which sets the control trigger 8 to one state (Fig. 2c). At this point, the formation of the output pulse is completed and the time interval begins to form. In this case, a random value of the initial code K is entered into the second counter 7 due to the installation of the bit triggers of this counter in an arbitrary manner when power is supplied via the second key 3. Next, the second k-bit counter

7 counts the pulses arriving with the period K TTU from the output of the controlled frequency divider 1 (Fig. 2 b) through the second element AND 5. After the second counter has a counting input

7, 2 - K pulses will be received, at the overflow output of this counter an overflow signal appears (Fig. 2e), which sets the control trigger 8 to the zero state (Fig. 2c).

8 this time the formation of the time interval is completed.

Further, using counters 6 and 7 at the output of the device (bus 14), random flow pulses are generated in a similar way.

When setting the division factor K, 1 random values of the duration of the pulses of the formed flow

1 (T

 in - (1 T ,.

random and evenly distributed.

five

from

T

before

 2 T,

and value - -in 7U

NIN duration of time intervals between pulses of the formed stream

t - with 7 - I / I 6 - g ;,

T.

also random and evenly distributed from T ,, Kq T, „to Tj, 2 K and T,

The number of equal parts) and T is 2.

The mathematical expectation of the values of tj and Tg are determined by the expressions m 2 T and n K T ,,, respectively.

Thus, the device makes it possible to adjust, over a wide range, the synthetic characteristics of the laws of the distribution of pulse duration values of the generated random flow and the time intervals between these pulses. The characteristics of the law of distribution of values of I are determined by the width of the counters k and the period of the clock pulse T, and the characteristics of the law of distribution of values of intervals Tg are determined by the values of k and T and the values of the division factor K of the controlled frequency divider 1, the result is a separate adjustment of the static characteristics of the laws of the distribution of values; and T.

When setting the value of the division ratio of the controlled divider

Frequencies K = 1 Both counters alternately calculate clock pulses. The device generates a stream of short pulses on the first output bus 13 (Fig. 2e), the values of the time intervals between which are random and evenly distributed from T T to Td 2 T, y, and the values of the pulse duration unchanged.

Formula of Invention

one

Random Flow Sensor

auth. St. No. 947948, characterized in that, in order to examine the functionality by forming a stream of pulses with random values of their duration and ensuring separate adjustment of the characteristics of the laws of distribution of pulse durations and time intervals, it additionally introduces a controlled frequency divider and control buses connected to the corresponding inputs of the controlled frequency divider - the synchronization input of which is connected to the clock pulse bus and the output to the first input of the second element I.

T

rt

Fig 2

Claims (1)

Claim The sensor of a random stream according to ed. St. No. 947948, characterized in that, in order to expand the functionality due to the formation of a pulse stream with random values of their duration and to provide separate adjustment of the characteristics of the laws of distribution of pulse durations and time intervals, it additionally introduces a controlled frequency divider and control buses connected to the corresponding inputs of a controlled frequency divider, * the synchronization input of which is connected to the clock bus, and the output with the first input of the second element I. F ig 2