SU394790A1 - DEVICE FOR SELECTION OF RELIABLE INFORMATION - Google Patents

Description

The invention relates to the field of computing and automation and can be used in redundant digital automatic control systems.

A device for selecting reliable information is known comprising a majority element.

The disadvantage of the majority element is the impossibility of selecting reliable information from signals that differ in size and are represented by multi-bit binary numbers in a sequential code.

The proposed device differs from the known one in that between each input of the device and each corresponding input of the majority element is connected the OR circuit, the output of which is connected to the input of the majority element, and one of its inputs is connected to the unit output of the unit issuance trigger, the unit input of which is connected to the output schemes “And analysis of units; the second input of the circuit “OR connected to the output of the circuit“ AND issuing a number, one of the inputs of which is connected to one of the inputs of the circuit “AND analysis of units and to the zero output of the Trigger issuance of zeroes; at the same time, the single trigger input of the output “hive is connected to the output of the“ And analysis ”scheme, a hive, one of the inputs of which is connected directly to the output of the device, which is the output

of the majority element, and through the output signal inverter - to the second input of the “We” and “unit analysis” circuit, and the device input is connected directly to the second input of the “And number output circuit, third input of the“ And analysis of the units circuit and through the input inverter - to the second input schemes “And analysis of zeros; In addition, the zero inputs of the trigger for issuing zeros and issuing units are connected to the initial setup bus.

The present invention implements a sample of the average size of the code of the codes, postus on its inputs, and increases the reliability of the device.

The drawing shows a block diagram of the described device, for example, to three inputs, which contains the majority element /, the scheme "OR 2, the scheme" we "And 3 issue numbers, triggers 4 issuance of zeros, triggers 5 issue units, And" 6 analysis zeros, circuit “And 7 units analysis, output 8 devices, inverters 9 output signals, inputs of iO devices, inverters 11 input signals and bus 12 of initial setup.

The device works as follows.

Its inputs 10 are supplied with signals from channels in a sequential binary code, starting with the highest bits. For definiteness, we will assume that the unit in the code discharge corresponds to a high potential, ZERO -

low, in the initial state after iodachi signal on the bus 12 of the initial installation at 1 output of triggers 4 issuance of zeros there is a high note, and on a single output of triggers 5 issuance of units - low. In this case, paapenieiio and the occurrence of the higher bits of the input inputs are the inputs of the majority element. Further operation of the device will be considered on the Nrimer Nodachi at eiO input of the production signals. It is assumed that on the left 1 input 10 of the device the number 10011 is iodized, on the middle one the number 01111, and on the iray one the number 11100.

When the device is inputted to the inputs 10, the higher-order bits of the iridized codes of the unit are passed to the left and equalized input of the majoritarian element /, as a result of which a unit appears at the output 8 of the device (majority element). A hundred is formed;} width 1 of the output signal. Prashpa-shyrashrash the output of the output signal to zero in the same signal, but from the medium input 10 of the device through the inverter // input signals, the input to trigger the average circuit “And 6 analysis of the Hell, the output of the KOTOpoii eta11 presses into a single command understanding the average trigger 4 issuance of zeros. The zero output of the flip-flop appears in the zero output of the above-mentioned trigger, closes the average "1-1 3 input of the average and the average" P 7 unit analysis. From this moment on, the input of the major element 1 will be kept at a low potential, regardless of the subsequent code bits, iostuiayui1, it at the device input of the same name.

The operation of the average scheme of the PI 6 analysis of zeros indicates that the number after the average input 10 of the device, among the input numbers, has the smallest value. The device is replaced by a code with pools in all the next bits.

Following the senior, the next bit of eigals is fed to the inputs 10 of the device. The unit arriving at the device iravny inlet 10, passes to the right inlet of the majority elemept /. OlT, but on the other two of its inputs, zero signals are present, so the signal at output 8 of the motor accepts a zero value. The output nkhlevy signal, passing through the inverter 9 output signals, leads to the triggering of a sort of unit analysis circuit, the output signal of which sets the right trigger 5 for the output of a switch to a single state. The high output potential appears at the exit of this trigger, which through the right

2 Butts on the right entrance of the majority element. From this moment on, the high key of the input of the major element will always be kept high, regardless of the subsequent bits of the codes entering the device of the same name. The operation of the irava scheme "And 7 analysis of the unitip testifies that the number, and the finding and right input of the device

among the input numbers has the highest value. In the device, it is replaced with a code with units in all subsequent bits.

After the first two bits of the input signals occur, the medium potential will be kept at the input of the majority element /, and the low potential will be kept at the right, and the high potential will be the right input. With such a distribution of non-potentials at the inputs of the majority element, the value of the subsequent bits of the code

the output 8 of the proposed device will correspond to the following diagrams of the same-digit bits of the code arriving at its left input 10. At the output 8 of the device, the number 10011 is formed, which is average in magnitude

spp input signals.

Subject invention

A device for selecting reliable information containing a majority element, triggers and schemes AND, OR OR inverters, characterized in that, in order to improve the operation of the device, between each input of the device and each corresponding input of the majority element is connected an ILP output which is connected to the input of the majority element, and one of its inputs is connected to the unit output of the unit issuance trigger, the unit

the input of which is connected to the output of the circuit “AND apalysis of units; the second input of the scheme“ SLI is connected to the output of the circuit “AND output of a number, one of the inputs of which is connected to one of the inputs of the circuit“ AND analysis of units and

to the bullet output of the trigger by issuing a bullet, while a single trigger input. issuing zeros is connected to the output of the circuit "And analysis by a bullet, one of the inputs of which is connected to the output of the device and through the output inverter of the output signals to the second input of the circuit connected to the second input of the scheme “And issuing a number, the third input of the scheme“ And analyzing the units and through the inverter of input strings - with the second input of the scheme “P analyzing zeroes, and the bullet inputs of the trigger issuing units and issuing zeroes are connected to the initial installation bus.