SU1309306A1 - Device for selecting continuous signal with respect to majority principle - Google Patents

Abstract

The invention relates to automation and engineering and can be used in the construction of analog systems with multi-channel redundancy and majority signal processing. The purpose of the invention is to expand the field of application of the device by nutem forming independent of the device’s redundant outputs equal to the number of its inputs (where n 2 is an odd number). The device contains main diode bridges 1 according to the number of inputs 7i, / 72, ... 7 „pairs of diodes 2 in the first diagonal of the main diode bridges, the first balanced resistors 3, additional diode bridges 4, the second balanced resistors 5, the source 6 of the bias voltage. The first diagonals of all the bridges through the first and second balanced resistors are connected to the source 6, ensuring that the flow of bias currents through all the diodes in the forward direction. When applying equal signals from the sources of information to the input devices of the device, equal signals are also generated on the output buses, since all the diodes in the bridges are open. If, due to failures, the individual input signals begin to differ in magnitude, some of the diodes in the bridges close and eliminate the effect of the failed input signals on the output, which are formed on the basis of the majority principle. Short circuits of a part of the outputs to the common bus or to an external power source also do not affect the signals of the Other outputs. 1 il. i (L o: O with OO O o O:

Description

The invention relates to automation and instrumentation and can be used in the construction of analog systems with multi-channel redundancy and majority signal processing.

The purpose of the invention is to expand the field of application of the device by forming n independent redundant device outputs equal to the number of its inputs (where n 2 is an odd number).

The drawing shows a schematic diagram of the device.

The device contains main diode bridges 1, pairs of diodes 2 in the first diagonal of main diode bridges, first balanced resistors 3, additional diode bridges 4, second balanced resistors 5, source 6 bias voltage, input buses 7, / g, ..., 7 „, General tire 8, output tires 9i, 9g, ... 9i.

If necessary, to improve reliability, separate mixing voltage sources can be applied. They feed the main and additional bridges in their channel.

The device works as follows.

With a good condition of all n input

15

where (+ Е) (-Е) is the voltage of the source 6 of the bias voltage relative to the common bus 8;

RS is the value of the balanced resistor 3;

R. -, - value of the balanced resistor 5;

evyhmaks - the specified maximum value of the output voltage;

RH is the resistance value of the load, connected to the output bus 9i, 9-2, ... 9 ".

Thus, the device provides the formation of as many output signals as the original ones, provided that the last 3 or more (with an odd number), at each output the signals are the result of majority processing of input; 1x signals, and the outputs are independent between in case of short circuits with them

sources of information connected to 25 common bus or with an external source bus 7, 72, ..., 7 „, the input signals of the device are approximately equal to each other.

All diode bridges of the device are open by the current of the source 6 of the bias voltage, their passage resistance is small. On all output buses 9i, 92, ..., 9, signals appear that are approximately equal to the arithmetic average of the input signals. When one or several input signals deviate from the value that the axis of the power supplies.

Claims (1)

Invention Formula 30 A device for selecting a continuous signal according to the principle of voltage and voltage, containing a source of bias voltage, and main diode bridges (where n 2 is an odd number), 2 p of the first balanced resistors and n pairs of diodes, to the first diode, most of the diodes in the main washing diode bridges, interconnecting the anodes of two diodes on one side and cathodes of two diodes on the other, are connected via positive resistors, respectively, to negative and negative terminals of the bias source, the second diagonal of each bridge connected by one pin to the corresponding i-th (i 1, 2, ... n) input Itah closes and eliminates the influence of the failed information sources on the output signals of the device. The remaining output signals also do not affect the short-circuit of the output busbars 9i, 92, ..., 9 "with the common bus 8 of the device or with an external voltage source. For normal operation of the device, the following conditions must be met: g  102 I the value of the quiescent current (when the input bus voltage is equal to zero) in the supply diagonal of the main diode bridges 1, i.e. the value of the initial bias current; the value of the quiescent current (i.e., the bias current) in the additional diode bridges 4; the maximum current value in the load. m  01 1-2. I N.MAX -, vvyhmlks Rh where (+ Е) (-Е) is the voltage of the source 6 of the bias voltage relative to the common bus 8; RS is the value of the balanced resistor 3; R. -, - value of the balanced resistor 5; evyhmaks - the specified maximum value of the output voltage; RH is the resistance value of the load, connected to the output bus 9i, 9-2, ... 9 ". Thus, the device provides the formation of as many output signals as the original ones, provided that the last 3 or more (with an odd number), at each output the signals are the result of majority processing of input; 1x signals, and the outputs are independent between in case of short circuits with them common bus nickname food. Invention Formula 30 A device for selecting a continuous signal according to the principle of a large voltage circuit containing a source of bias voltage and main diode bridges (where n 2 is an odd number), 2 p of the first balanced resistors and n pairs of diodes, to the first diode of the main diode bridges diodes on one side and cathodes of two diodes on the other, are connected via balanced resistors, respectively, positive and negative Q output terminals of the bias voltage source, the second diagonal of each bridge is connected by one pin to the corresponding the i-th (i 1, 2, .... n) input device, the cathode of the first diode of each diode pair is connected with the anode of the second diode of this pair, and the anode with the anodes of the diodes of the first diagonal of the corresponding bridge, the cathode of the second diode each pair is associated with the cathodes of the diodes of the first diagonal of the same bridge, the midpoint of the connection of the diodes in each i-th pair. in addition to the p-th, connected to the (1- | -1) -th input type, the midpoint of the connection of the diodes in the pth pair is connected to the first input line, and the middle point of the bias voltage source is connected to the total thickness of the device, different the fact that, in order to expand the field of application of the device by forming independent outputs by the number of inputs of the device, 2p of the second balanced resistors and five 1309306 34 complementary diode bridges to the first diagonal of the second diagonal of the corresponding which drove, formed by the connection of the main diode bridge and to the corresponding station codes. two diodes on one side and the i-th output bus of the device, two other diodes on the other, subdirectory output of the second diagonal additional respectively, through balanced resistive bridges, except for the nth one, is connected to The tori are positive and negative output (1 + 1) -th output bus device, and the source voltage of the bias voltage, the second output of the second diagonal of the nth additional diagonal of the additional diode bridge diode bridge connected to the first One pin is connected to another you-output bus device.