SU367423A1 - DEVICE FOR SUBMISSION OF NORMALIZED - Google Patents

Description

one

The invention relates to the field of computing and can be used in electronic devices for statistical processing of information.

A device for presenting a normalized statistical distribution histogram is known, which contains accumulative counters, digital-analog converters, indicators, and a current stabilizer, which makes it possible to simply obtain a normalized histogram with a relatively narrow range of samples. However, with a wider range of samples, the requirements for a current stabilizer increase, and digital-to-analog converters are not used rationally.

The purpose of the invention is to expand the range of samples for which histogram rationing is performed, reducing the requirements for a current stabilizer and simplifying digital-to-analog converters.

The goal is achieved by the fact that the proposed device contains an adjustable pulse generator geyerator, n And elements and OR whose inputs are connected to n input terminals, and an output to an input of an adjustable pulse series generator; the output of this generator is connected to the first inputs of the And elements , the second inputs of which are connected to the corresponding input terminals, and the outputs - to the inputs of the corresponding

accumulative counters. The pulse train generator contains three elements “And, a multivibrator, a counter, a switch and an element“ IE, whose input is connected to the input of the generator of a series of pulses, and the output with the first inputs of the first and second elements “And, the second inputs associated with the output of the multivibrator, and third - through the switch with the first, second and third outputs

the counter, the fourth output of which is connected to the first input of the third element “I, and the input to the outputs of the second and third elements“ And, the second input of the third element “I is connected to the input of the generator of cpmi pulses, the third - to the output of the multivibrator, and the output of the first element And connected to the output of a series of pulses.

The functional diagram of the device is shown in FIG. 1, adjustable generator circuit

pulse series — in FIG. 2

The device contains for each distribution class accumulative counters 1 with elements "AND (gates) 2 at the input and digital-to-analog converters 3 per

output Indicators 4 are connected to the digital-analog converter m 3. The common wire of the indicators is connected to the current regulator 5. Informational inputs 6 are connected to the control inputs of the valves 2 and through the element "OR 7 - to the input of the generator 8 series

pulses in the ear of which is connected to pulsed in-hddam valves 2.

As the generator 8 of a series of pulses, a circuit containing a counter 9, elements “And (gates) 10, 11, 12, multivibrator 13, inverter 14”, switch 15 can be used. Multivibrator 13 is connected through valve 10 with elements “And 2, and through And 11 VI 12 elements - with the input of the counter 9. The element output "OR 7 is connected to the first control input of the element" And 12 and through the inverter 14 to the first control inputs of the elements 10 and 11. The zero output of the counter 9 is connected to the second control the input of the element "And 12, and the other outputs of the counter 9 are connected via switching Tel 15 with the second control inputs of the elements “And - / (9 and 11.

The device works as follows.

Before the beginning of work, the counters 1 are set to their original position. In this case, the currents through the indicators are zero. The information signals from the inputs 6 are sent to the elements “AND 2 and through the element“ OR 7 - to the input of the generator of a series of pulses. Depending on the selected sampling range (set by switch 15), a certain number of pulses appears at the output of generator 8, which through an open element "AND 2 arrive at a cumulative counter / of the corresponding class (for example, for samples of the first range - 4 pulses, samples of the second range - 2 pulses, with samples of the third range - 1 pulse). This is how the number of events for each distribution class is counted, with simultaneous multiplication of the distribution frequencies by the corresponding coefficients of the sample ranges. The frequencies recorded in the meters / are converted using digital-to-analog converters 3 to proportional analog currents, which are fed to the indicators 4. The total current of the indicators 4 is maintained at the same level by the current stabilizer, which ensures the normalization of the histogram in the sampling range.

Since the distribution frequencies in the counters / are recorded multiplied by a smaller factor for larger samples and by a larger factor for smaller samples, the sum of the frequencies varies in narrow limits with a wide general range of samples. As a result, the load of the current stabilizer, which is the total conductivity of the D / A converters, varies within rather narrow limits, which ensures easier operation of the current stabilizer. The fact that counters 1 always work in the range of large samples allows in some cases not to connect D / A converters to one or several younger counters. Consequently, D / A converters can be simplified.

The generator 8 operates as follows.

In the absence of a signal at the output of the element “OR 7, the valves 10 and 1J are closed by voltage from the inverter 14, and the element“ AND 12 is open until the pulses from the multivibrator 1 install the counter 9 into the bullets (the signal from the zero output of the counter 9 closes element 12}. When a signal appears at the output of the element "OR 7, the element" And 12 is closed, and the elements "And 10 to 11 are opened.

The pulses from the multivibrator 13 pass through the element "And 12 to the counter 9, and through the elemen, the ment" And 10 - the pa elements "And 2. When receiving / g of pulses to the 1 counter 9, a signal appears at its output through the switch 15 arrives at the elements “And 10 and / U and closes them. When the signal from the output of the element "OR 7" is removed, the element "AND 12 again opens and the counter 9 is set to zero again.

The generator circuit 8 makes it possible to obtain rather simply a series with a different number of pulses, and to obtain a series of up to 15 pulses, a total four-bit counter is required. This circuit also provides for a reliable setting of the counter to zero, which is important for obtaining a given number of pulses in a series.

Subject invention

Claims (2)

1. A device for the presentation of a normalized histogram containing n accumulative counters, the output of each of which connected to the input of the corresponding digital-analogue converter, the output of which is connected to the input of the corresponding indicator, the indicator outputs are connected to the input of the stabilizer, characterized in that the purpose of extending the application area, increasing the reliability and simplifying the device, it contains an adjustable pulse train generator, n And elements and OR, which codes are connected to the n input terminals, and the output to the input of the adjustable pulse series generator, the output connected to the first the inputs of the elements "And, the second inputs of which are connected to the corresponding input terminals, and the outputs - with inputs of the corresponding accumulative counters. 2. The device according to claim 1, characterized in that, in order to simplify the device and increase its reliability, the adjustable pulse train generator contains three “Meirra” And, multivibrator, counter, switch and element “PE, whose input is connected to the input of the generator pulse series, and the output with the first inputs of the first and second And elements, the second inputs associated with the output of the multivibrator, and the third inputs through the switch with the first, second and third outputs of the counter, the fourth output of which is connected to the first input the third element "And the input - with the outputs the second and third elements "And, the second input of the third element" And connected to the input of the generator of a series of pulses, the third - to the output multivibrator, and the output of the first element “And connected to the output of the generator of a series of pulses. FIG I sh w R 6 yy d / l g one L, fpuZ.