SU947865A1 - Device for control of connection of standby units - Google Patents

Description

The invention relates to automation and can be used to automatically turn on the work of the units of the redundant system, taking into account the amount of time worked by this block. The reserved elements can be functionally complete nodes, hardware blocks, paths, etc.

It is known a device for controlling the switching of a rolling reserve, containing control elements of main and reserve blocks connected to the inputs of the matrix of AND-NOT elements with the number of columns equal to the number of main blocks and the number of rows equal to the number of reserve blocks, the outputs of the matrix of AND-NOT elements connected to the switch. This device is commissioned to replace the failed main unit with a serviceable backup unit l.

The disadvantage of this device is that it is not capable, when the reserve is exhausted, to include free main units into operation, which leads to a decrease in the reliability of the redundant system.

Closest to the proposed device is / 1l control

switching a rolling reserve, containing block connection control elements, block control elements, a switchboard v-matrix of AND-NOT elements with NAL.LHEM rows 1 equal to the number of block connection control elements and the number of –Columns J equal to the number of block control elements, the output every ij-ro

10 elements of the matrix IS-NOT are connected to the switch and with the inputs of all the elements of the IS-NOT of the i-th row and the j-ro column of the matrix, the output of each of the connection control elements

15 blocks are connected to the first inputs of the elements AND-NOT of the i-th row of the matrix. Such a device can be used to automatically connect blocks and is capable of

20 running out of reserve to include free main blocks instead of failed blocks 2.

A disadvantage of the known device is that it does not provide sufficient reliability of the redundant system, since it is not envisaged that units having higher reliability are included in the operation. In addition, a well-known device performs first of all the operation of blocks whose control elements are connected to more sensitive to switching elements of the AND-HB matrix, as a result of which these blocks are in operation more time than blocks whose controls are connected to less sensitive elements of the IS-NOT matrix, which will reduce the reliability of the entire system being reservable due to the uneven development of the resource.

The purpose of the invention is to increase the reliability of the device.

The goal is achieved by the fact that a device for controlling the connection of redundant blocks, containing a matrix of NAND elements with the number of lines i equal to the number of elements. controlling the connection of blocks and the number of columns J equal to the number. control elements of blocks, with the output. of each ij-ro matrix element connected to the switch and with the inputs of all the elements of the AND-NOT of the i-th row and the j-ro column of the matrix, the output of each of the control elements of connecting the blocks is connected to the first inputs of the AND-NOT elements The corresponding row of the matrix contains a group of voltage transducers in the time interval, the first element is AND, the second element is AND, the group of j elements is AND, the delay element, the element is OR NOT, the element is OR, and the group is from KS-triggers, the output of each of which is connected with the release control unit connecting to it, R-input - with the output of the element. OR-NOT, and the output with the corresponding input of the OR element, the output of which is connected to the first input of the first AND element, the second input - to the first input of the OR-NOT element and the input item delayed-. ki, and the output with the first inputs of voltage converters, the second input of each of which is connected to the first output of the corresponding control element of the blocks, and the inverse output to the corresponding input of the second element I, the output of which is connected to the input of the delay element, the inverse output of the delay element connected to the second input of the element OR NOT, the inverse output of each voltage converter also contains the first input of the corresponding element AND of the group, the second input of which is connected to the second output of the corresponding control element of the blocks, and the output of each of the AND elements of the group is connected to the second inputs of the AND-NOT element of the corresponding matrix column.

The drawing shows the block diagram of the proposed device.

The device contains elements, block connection control, block control elements, switch 3 and matrix of NAND 4 elements with the number of rows 1 equal to the number of block connection controls and the number of columns j equal to the number of block control elements, a group of j voltage to time converters interval, the first element And 6, the second element And 7, a group of j elements And, the delay element 9, the element OR NOT 10, the element OR 11, the group of X Triggers,

The output of each ij-ro element AND-H of the matrix is connected to the switch 3 and with the inputs of all the elements AND-NOT 4 of the i-th row and j-ro of the matrix column. The output of each of the elements. control unit connection is connected to the first inputs of the elements AND-NOT 4 1 of the same row of the matrix. The C-input of each of the flip-flops is connected to the output of the corresponding element 1 - 1., Controlling the connection of the blocks, the R-input of each of the flip-flops., Is connected to the output of the OR-NOT 10 element, and the output of each of the flip-flops is connected to the corresponding input of the OR element 11. The output of the element OR 11 is connected to the first input of the first element AND b, the second input of which is connected to the first input of the OR-NOT 10 element and the input of the delay element 9, and the output is connected to the first inputs of the transducer; T (W (; voltage). The second entrance of each of

voltage converters are connected to the initial output of the corresponding control element of the blocks, and the inverse output is connected to the corresponding input of the second element And 7, the output of which is connected to the input of the delay element 9. The inverse output of the element 9 of the deadech is connected to the second input of the element OR NOT 10. The inverse output of each of the voltage converters 5.J-5: is also connected to the first input of the corresponding AND element of the group, the second input of which is connected to the second output of the corresponding element of the control unit / and the output of each of the elements AND 8 -8, j of the group is connected to the second inputs of the elements AND-NOT 4 of the corresponding column of the matrix. These signs are new compared to the known.

Claims (1)

Voltage converters convert voltage to a time integral with a duration proportional to the value of the incoming voltage applied to them,. control blocks. In the device, the number of block connection control elements is determined by the number of main blocks involved in the operation, the number of elements of the control blocks is equal to the total number of system blocks, i.e. main and backup blocks. The number in the main and backup blocks is determined arbitrarily. The system shown in the drawing has 3 blocks, of which 2 are basic. The device for controlling the connection of backup units operates as follows. In the absence of requirements for switching on the operation of the blocks (initial state), a logical signal O is received from each control element of switching on the blocks. These signals are fed to the first inputs of the AND-NOT 4 matrix elements, and as a result, the logical signals are present at the outputs of all the AND-4 matrix elements. The logical signal from the output of each control element connecting the blocks is also fed to the C input of the corresponding trigger. The output from the triggers in the initial state is a logical O signal, which through the element OR 11 goes to the first input of the first element 6, the output of which also has a logical O signal. This signal arrives at the first inputs. Starting of voltage converters, as a result of which logic signals appear at the inverse outputs of voltage converters of the initial state. These signals are fed to the inputs of the second element AND 7, the output of which also contains a logical signal, which arrives at the inputs of the OR-NOT 10 element and the delay element 9. Therefore, at the output of the element OR NOT 10 and at the R-inputs trigger. 12x-12i through the delay time T in TC the logical logic signal from the output of each voltage converter also goes to the first input of the corresponding element AND group 8, to the second input of which, when the connected blocks work, the second output of the corresponding control element comes signal logic. Since at both inputs of the AND group there are signals of a logical H, then the output of this element will also contain a logical signal, which is fed to the second inputs of the AND-NOT 4 matrixes of the corresponding matrix column. Each of the AND-NOT elements has 4 matrices in this case, on all inputs, except for one connected to the block connection control elements, there are logical signals. From the first output of each element of the control unit to the second input of the corresponding voltage converter 5y-5y, voltage is applied, the value of which depends on the time during which the unit is in operation. When one of the elements 1; | -1 is added to the control of connecting the signal blocks, Operation 1 triggers the corresponding trigger. A logical signal appears at the output of the trigger, which through the element OR ll is fed to the first input of the first element AND 6. The second input of the first element AND 6 already has a logical signal, therefore the output of this element is also present. voltage converters .j, which leads them to run. Each of the voltage transducers 5 forms a time interval with a duration proportional to the voltage applied to them. The inverted outputs of the voltage converters receive signals of logical O, which arrive at the corresponding inputs of the second element AND 7. From the output of this element, the logical signal arrives at the second input of the first element And 6, prohibiting the passage through the first element B of the next signal. The inputs of the voltage converters during the pulse at the outputs of the voltage converters 5 - - 5y. In addition, from the output of the second element AND 7 the signal of logic O arrives at the input of the delay element 9 and at the input of the element OR NOT HE. Since the delay time is chosen by HciMHoro less than the duration of the pulses at the outputs of the voltage converters, the arrival of the logical signal O at the inputs the delay element 9 and the element OR NOT 10 results in a short pulse of positive polarity at the output of the element OR NOT 10. This pulse arrives at the R-inputs of zeroing triggers and returns them to the initial state before the arrival of the next signal from the block connection control elements. The signals from the outputs of the voltage converters also arrive at the first inputs of the corresponding elements AND groups, prohibiting the passage of signals. Work from the outputs of the elements of the control blocks to the matrix of AND-NOT elements 4 for the duration of the action of these signals. The durations of these signals at the outputs of different voltage converters due to different size, worked up to this point in time of the blocks, will be different. Therefore, one of the elements of the AND group, to the first input of which is fed from the corresponding voltage converter, the shortest duration signal, will pass the Work signal - before the others. This signal of logical 1 arrives at the second inputs of elements AND 2 NOT 4 matrices of the corresponding column of the matrix. All inputs of the NAND element 4 matrices from this column and row, which corresponds to the element, are controlled by the block connection to the issuer of the sig work. It has logical signals. As a result, this element is triggered and a logic O signal appears at its output, and at the outputs of the remaining NAND elements there are 4 matrices of this row and this column of logic. When a logical O signal appears at the output of the NAND 4 element of the matrix, the actuator of the switch 3 triggers, including the corresponding unit having the shortest operating time. In this state, when a Work 1 signal appears at the output of another block connection control element 1, the same block is automatically switched on to work with another block that has the next shortest operating time. The interlocking chains in the rows and columns of the matrix allow only one element to operate AND-NOT 4 matrices in each row. Therefore, in each direction, one of the units of the equipment connected to the operation will be put into operation. A change in the signal of a logic at the output of any of the control elements by connecting the blocks to the signal of a logical CP causes the output of the corresponding element AND-NOT 4 of the matrix of the signal of logic i and thereby switches off the block from operation. The failure of any of the blocks is accompanied by the appearance at the output of its element 2.-2, j of the control of the blocks, a logical signal O arriving at the stroke of the corresponding element AND-8j and prohibiting the inclusion in the block of this block if the block is in reserve. In case of failure of a block included in the operation, the occurrence of a logical O signal at the output of the control element of the blocks leads to locking the corresponding AND 8 -8 / group element, which in turn causes release of the previously used AND-NOT element of the atrits and prohibiting the operation of all elements AND-NO 4 of this matrix column. In this case, an automatic replacement of the faulty block by any of the free and serviceable backup blocks occurs. Thus, the proposed device allows operational blocks to be put into operation, depending on the amount of time they had previously worked. A unit that has worked less than others is put into operation in the first place, and having more time than others is the last one. This condition of connecting the units improves the reliability of the device. Apparatus of the Invention A device for controlling the connection of redundant blocks containing a matrix of NAND elements with the number of rows i equal to the number of block connection control elements and the number of columns J equal to the number of block control elements, the output of each ij-ro matrix element being connected to a switch and with the inputs of all the elements of the AND-NOT of the i-th row and the j-ro column of the matrix, the output of each of the control elements of connecting the blocks is connected to the first inputs of the AND-NOT elements of the corresponding row of the matrix. increase the reliability of the device, it contains a group of voltage transducers in the time interval, the first element is AND, the second element is AND, the group of j elements is AND, the delay element, the element OR-NOT, the element OR, and the group of X-Triggers, the C-input of each connected to the output of the block control element corresponding to it, R-inputs to the output of the OR-NOT element, and output to the corresponding input of the OR element whose output is connected to the first input of the first AND element, the second input to the first input of the OR-NOT element and the entrance the delay element and the output - the first inputs of voltage converters, the second input of each of which is connected to the first