SU1476496A1 - Odd number exponentiator - Google Patents

Abstract

The invention relates to specialized computer hardware and can be used to raise a fuzzy number x. The aim of the invention is to expand the scope of the device by determining the membership function of the result of raising to a power of a fuzzy number. The device contains a clock pulse generator 1, a pulse counter 2, a power raising unit 3, made in the form of a series-connected logarithm 4, a multiplier 5 and a potentiator unit 6, a digital-to-analog converter 7, a comparator 8, a line voltage generator 9, a sawtooth voltage generator 10 , analog-to-digital converter 11, the block of elements And 12, the first 13 and second 14 delay elements. Achieving this goal is ensured by introducing into the device a linear voltage generator, an exponential unit and a new connection between the elements. 2 Il.

Description

Phie. I

The invention relates to specialized computer hardware and can be used to raise a fuzzy number x defined by the membership function jux (x).

The purpose of the invention is to expand the scope by reproducing the membership functions of the result of raising to a power of a fuzzy number.

FIG. 1 is an electrical block diagram of a device for raising to a power of a fuzzy number; Fig. 2-2 shows the time diagrams of the operation of individual units, explaining the functioning devices.

The device for raising to a power of a fuzzy number contains a generator of 1 clock pulses (GTI), a counter of 2 pulses, a block of 3 raising to a power, made in the form of sequentially connected logarithm 4, a multiplier 5, and a flow block 6 (calculating ex) digital-to-analog converter (D / A converter) 7, comparator 8, linear voltage generator 9, sawtooth voltage generator 10, analog-to-digital converter (AVD) 11, AND 12 block of elements, as well as the first 13 and second 14 delay elements .

The device for raising to a power of a fuzzy number works as follows.

The membership function of a fuzzy number x is defined as a function of approximate equality, which is formed in the form of a triangle by the generator 1 sawtooth voltage. Operation starts by turning on GTY 1. Counter 2 counts the number of pulses. The contents of counter 2 correspond to the current value of y. The definition of (K and (y) is made for each of these values in the interval between the GTI 1 pulse. From the output of counter 2 in the exponential unit 3, the signal is converted to a form corresponding to value (y), which is converted to analog form of the CDC 7 and fed at the first input of the comparator 8. At this time, the generator 9 begins to generate a linearly increasing signal and at some point in time when the signal from the output of the generator 99 at the trigger input of which is a delay element (not shown),

exceeds the signal from the output of the D / A converter 7; at the output of the comparator 8, a polling pulse is generated, which is fed to the control input of an I 12. Element block. At each GTI pulse 1, a sawtooth voltage generator 10 produces a triangular pulse corresponding to the membership function (and, ((x) The input of the generator 10 and 10 includes a delay element (not shown) at the time of transients in counter 2, block 3, and DAC 7. The signal from the output of generator 10 is digitized into ADC 11, therefore, when a polling pulse is applied to the control input block element And 12, the output of the device receives the value of the function tc (101) ls-ha (y) in digital form for the current values of y. In addition, the polling pulse from the output of the comparator 8, via the second delay element 14, resets the generator 9 to the initial state.

The described processes are repeated for each of the pulses from the output of the GTI 1. The operation of the device is stopped by stopping the GTI 1 by the stop pulse supplied from the overflow output of the counter 2 to the input of the GTI stop 1 via the first delay element 13.

Claims (2)

1. A device for raising a fuzzy number to a power containing a clock pulse generator whose start input is the device start input and the output is connected to the saw generator start input of different voltage and to the counting input of the pulse counter connected to the overflow output through the first delay element to the input of the clock pulse generator, a digital-to-analog converter, a second delay element, an analog-to-digital converter, a comparator and a block of elements I, a group of information inputs which is connected to the output of the analog-to-digital converter connected to the output of the sawtooth generator, the control input of the AND block is connected to the output of the comparator, and the output is the output of the device, the first input and output of the comparator are connected respectively to the output of the digital-analog converter and to the input of the second delay element, characterized in that, in order to expand the scope of application by reproducing the membership functions of the result of raising to a power of a fuzzy number, in A linear voltage generator, whose start and reset inputs are connected to the outputs of the clock generator and the second delay element, respectively, and the output is connected to the second input of the comparator, and maintenance to the power whose input is connected to the information output of the counter, and the output is connected to the input of the digital-analogue converter. 2. The device according to claim 1, wherein the unit of exponentiation in it is made in the form of a series-connected logarithm, multiplier, connected. a free input to the bus of the exponent and the potentiation unit. Out Exit 7 (U 1H o) OUT