SU1012468A2 - Redundancy device - Google Patents

Abstract

RESERVED DEVICE by author. St. 921133, which means that, in order to increase the reliability of the device, additional inverters and additional elements AND, the outputs of which are connected to the third inputs of the respective triggers, are introduced according to the number of reserved blocks, the first inputs of additional elements And are connected to the output of the restoring block, and the second inputs through additional inverters - with the outputs of the corresponding redundant blocks.

Description

five

YU

four

Od 00 The invention relates to computing, in particular, to designs of redundant devices that can be used to create digital computing devices of high reliability. According to the main author. St. 921133 known redundant device containing redundant blocks connected to the recovery block, keys included in the power supply circuit of the corresponding redundant blocks, AND elements, inverter, triggers, OR element, the output of the recovery block connected to the first output of the device, and through the inverter with the first inputs And elements, the second inputs of which are connected to the outputs of the corresponding redundant blocks, and the outputs - with the first inputs of the corresponding triggers, the second inputs of the triggers are connected to the reset bus, and their the first outputs are connected to the control inputs of the corresponding keys, the output of the OR element is connected to the second output of the device, and its inputs with the corresponding other outputs of the device and the second outputs of the corresponding triggers 1. A disadvantage of the known device is the relatively low reliability of operation due to incomplete monitoring of its performance concluding that there is no fixation of the failure of individual reserved blocks in case of failures of the false O type. This leads to the fact that there is no possibility of repairing failed blocks in case of failures of the false O type, which reduces the reliability of the reserved device; In addition, if more than three failures appear, different types of information at the output of the device become more false, and diagnostic information about the device’s health indicates the presence of a smaller (permissible) number of faults, which may lead to wrong decisions about the possibility of further operation of the device. All this ultimately leads to a decrease in the reliability of the device. The aim of the invention is to increase the ng1 reliability of the device by increasing the efficiency of control. To achieve this goal, a redundant device containing redundant blocks connected to a recovery block, keys included in the power supply circuits of the corresponding backup blocks, AND elements, an inverter, triggers, an OR element, the output of the recovery block is connected to the first output of the device, and through the inverter - with the first inputs And elements, the second inputs of which are connected to the outputs of the corresponding redundant blocks, and the outputs - with the first inputs of the corresponding triggers, the second inputs of the flip-flops Inins with a reset bus, and their first outputs are connected to the control inputs of the corresponding wrenches, the output of the OR element is connected to the second output of the device, and its inputs are connected to the corresponding other outputs of the device and the second outputs of the corresponding triggers; additional elements I, whose inputs are connected to the third inputs of the corresponding triggers, the first inputs are added to the NB1X elements I and connected to the output of the recovery unit, and the second inputs are ithout additional inverters - to the outputs of respective redundant blocks. The drawing shows a diagram of a redundant device. The device contains redundant blocks 1-5, keys 6-10 that perform the function of disconnecting blocks 1-5 from power supply 11, Bosst filling unit 12, consisting of AND 13-22 logic elements and OR 23 logic element, inverter 24, dogic elements AND 25-29, triggers 30-3.4, element OR 35, as well as additional inverters 36-40 and additional elements AND 41-45. The output of the logic element OR 23 is connected to the first output 46 of the device / to the first inputs of the elements 41-45 and to the input of the inverter 24, the output of which is connected to the first inputs of the elements 25-29. The outputs of elements 25-29 are connected to the first inputs of the triggers 30-z4, respectively. The first outputs of the flip-flops 3034 are connected to the control inputs of the keys 6-10, respectively. The second inputs of the trigger 30-34 connected to the bus 47 reset. The output of element 35 is the second output 48 of the device, and its inputs are connected to the outputs 4953 of the device, respectively, and to the second outputs of the flip-flops 30-34, respectively. Third inputs of the trigger 30-34 are connected to the outputs of the additional elements 41-45, respectively. Outputs reserve HpyeNttix blocks 1-5 are connected to the second inputs of elements 25-29, respectively, through additional inverters 36-40 - to the second inputs of additional elements 4i-45, respectively, and to inputs 54-58, respectively, of the restoring unit 12. When the blocks 1-5 work properly the triggers 30-34 are in a state in which the keys 6-10 are open and through them the voltage of source 11 piJCdHHH is applied to blocks 1-5. In such

The position of the flip-flops 30-34 are set before the start of the operation by a reset pulse arriving on the bus 47.

In case of a failure type of false, 1 in one of the blocks 1-5, for example in block 1, at the output of the logic element OR 23 the information remains equal. In this case, at the output of the element And 25, the signal 1 appears, which switches the trigger 30 to the position at which the key 6 is closed, the supply voltage is removed from the block 1 and the information O is received at the input 54 of the restoring block 12 As a result of switching the trigger 30 on output 48, the element OR 35 produces a signal 1, indicating the presence of a failure in the device. With the surviving behavior, at outputs 49-53, the failed redundant block can be determined.

When a failure occurs, such as false O in one of blocks 1-5, for example in block 1, the output of the logical element OR 23 information remains equal to 1. In the STOjIi case, the output of the element 41 appears

that switches

signal

the trigger 30 and the output 48 of the element OR 35, a signal is generated, indicating the presence of a failure in the device.

In the course of operation, a failure of the recovery block 12 may occur. If the block 12 fails, a false O signal appears at the output of all elements AND 25-29

0 which switches triggers 30-34

and at all outputs 49-53 appears

signal indicating

failure of the restorer; block 12.

At. the failure of block 12 of the LOD type 5 per 1 switching of the triggers 30-34 occurs from 3 elements AND 41-45.

Thus, in the proposed device, monitoring of the operation of the device is provided, which consists in releasing the failures of redundant blocks of any type, as well as detecting the failures of the restoring block of any type.

This allows information to be obtained.

5 As about the number and location of any type of failures, and about the failure of the entire device when the number of failed blocks is more than three.

Claims (1)

RESERVED DEVICE by ed. St. No. 921133, with the proviso that, in order to increase the reliability of the device, additional inverters and additional I elements, the outputs of which are connected to the third inputs of the corresponding triggers, are introduced into the number of redundant blocks, the first inputs additional elements And are connected to the output of the recovery unit, and the second inputs through additional inverters - with the outputs of the corresponding reserved units. .1012468