SU1327319A1 - Device for test diagnostics of equipment of program-controled switching units - Google Patents

Abstract

The invention relates to telecommunications and can be used to automate the service of PBXs. The purpose of the invention is to improve the accuracy of diagnosis. The device contains a control unit 1, a switching unit 2, a generator of 3 input actions, a generator of 4 reference responses, a block 5 with co-operation with

Description

13273

 j, operational memorize block: 6, logical node 7, information output block 8, diagnostic information memory block 9, memory block 10. Ditch of faulty elements, block 11 of the order of replacement of elements, block 12 of information input and block 13 of the instruction number. In block 9, each possible malfunction corresponds to a certain diagnostic information, and in block 10 it is recorded according to. her information indicating what type

one

The invention relates to telecommunications and can be used to automate the service of program-controlled PBXs, in particular for monitoring and diagnosing equipment in order to detect and subsequently troubleshoot the occurrence of malfunctions.

The purpose of the invention is to improve the accuracy of diagnostics.

FIG. 1 shows a block diagram of the proposed device for the test diagnostics of the equipment of switching nodes with programmed control; Fig 2 is a block diagram of a logical node; in fig. 3 shows a possible embodiment of the control unit; in fig. 4 is a timing diagram of the control unit operation algorithm; in fig. 5 shows an example of converting information in a device at the test execution stage.

The proposed device (Fig. 1) contains a control unit 1, a switching unit 2, a generator of 3 input effects, a generator of 4 reference responses, a comparison unit 5, an online storage unit 6, a logic node 7, an information output unit 8, a memory unit 9 diagnostic information, block 10 of the memory of numbers of faulty elements, block 11 of the order of replacement of elements, block 12 of entering information and block 13 of the instruction. Logic node 7 (FIG. 2) contains a comparison element 14, a shift register 15, two elements OR 16 and 17, and four elements AND 18-21. Control unit 1 contains a generator of 22 clock pulses.

The replacement element was diagnosed as faulty as a result of the diagnosis. This information is preliminarily determined at the stage of designing the object of diagnostics by analyzing the influence of faults on the results of the tests. In the case of the detection of several faulty replacement elements, block 11 provides information stored therein on the most optimal order of replacing elements 1 Hp. f-ly, 5 ill.

owls, counter 23 of the number of elementary test checks, decoder 24, elements And 25-30, triggers 31 and 32, shift registers 33 and 34.

In block 9 of the diagnostic information memory, each possible malfunction, and therefore, every possible result of performing elementary checks of the test, corresponds to a certain diagnostic information, and in block 10 of the number of malfunctioning elements, the corresponding information is written indicating which typical replacement element (one or more ) detected as a result of diagnostics as faulty.

This information is preliminarily determined at the stage of designing the object of diagnostics by analyzing faults on the results of the tests.

In the event that several faulty replacement elements have been detected, the unit 11 for replacing the elements gives out the information stored in it on the most optimal order for replacing the elements. -.

If, however, the response of the object of diagnosis to the performance of elementary tests of tests does not allow detection of a damaged element, block 13 of the instruction number gives the number of the corresponding instruction for further troubleshooting.

Due to the accumulation of experience in troubleshooting and repair of the object being diagnosed, it is possible to use the bdoc 12 to enter information

31

make changes and additions to blocks 9, 10, 11, 1.3. This makes it possible to increase the accuracy of fault detection and increase the percentage of automatically diagnosed lesions.

The device for the test diagnostics of the equipment of the switching nodes with programmed control works as follows.

At start-up, the shift register 15 in the logical node 7, the shift registers, the counter of the elementary tests of the test and the triggers in the control unit 1 (FIG. 3) are set to the initial state, and the clock pulse generator starts to work.

In the first cycle, the control unit 1 emits a signal (command) to the switching unit 2, which connects the input of the diagnostic object to the generator output 3 of the input actions, and the output to the input of the comparison unit 5.

The first stage of the diagnostic process begins. It is carried out by successively filing up. equal pulses from the output of the bits of the first shift register of control unit 1. This register after the start signal operates under the influence of signals from the output of the clock generator.

The control pulses from the outputs of the rads of the first shift register are received successively at the inputs of the generator 3 input actions, the generator 4 reference responses and the comparison unit 5,

,

First, the control unit 1 issues a command (signal) to the generator 3 input actions. The first elementary test of the diagnostics test, which is, for example, a combination of binary signals, from the generator output 3 input influences through the switched unit 2 paths enters the input of the diagnosed equipment. The result of performing an elementary test of the test from the object goes through the switching unit 2 to the second input of the comparison unit 5.

Next, the control unit 1 issues a command to the generator 4 reference responses in order to transfer to the comparison unit 5 the reference result of this elementary check of the test being performed.

Q

c

Q

5 d

0

50

five

five

nineteen

After the comparison, in the next cycle, specified by the control unit 1, the actual and reference results, the comparison unit 5 makes its result in the operational storage unit 6, then, in accordance with the diagnostic program, the control unit 1 controls the subsequent checks according to a similar algorithm. Thus, in the operational storage unit 6 at this stage, there is an accumulation of results

the tests (Fig. 5) included in the test used to diagnose a certain type of equipment. The end of the first stage occurs {three filling the counter of the number of elementary checks. In this case, the binary combination decoder generates a signal, the closing element I25 and the decoupling element AND 26. The second stage of operation begins when the control pulse to the corresponding blocks comes from the outputs of the bits of the second shift register of the control block 1.

At the second stage of work, the process of comparing the results of diagnostics accumulated in the operational storage unit 6 with the information recorded in the block 9 of diagnostic information,

From the first bit of the second shift register of the control unit 1, the signals arrive at the third input of the diagnostic information block 9 and the second input of the operational storage unit 6, and the second input of the block 9 receives a signal from the corresponding bit of the logical node shift G5 7, This shift register has M 1 bit, where M is the number of lines of information recorded in block 9 of the diagnostic information memory, taking into account the possible increase in the process of accumulating statistical data. Shift register 15 performs the functions of counting, storing and deciphering line numbers. In accordance with a combination received via M wires, representing a set of outputs of logic node 7, to the second input of diagnostic information memory block 9 at the moment of arrival of the control pulse from the first bit. Yes, the second shift register of the control block 1 reads the next line of the diagnostic information memory block 9 into the element

5T32

14 comparisons of the logical node 7. At the same time, information is read from the operational storage unit 6 also into the comparison element 14. For this, the comparison element 14 has two registers: one for recording information from the memory information block 9 of diagnostic information, and the other for recording from the operational memory block 6.

After the census process is completed, the information is compared in the next clock cycle from the second bit of the second shift register of the control unit. Two results are possible in the course of comparing inequality and equality. The first result means that the comparison process needs to be continued. In this case, in the next cycle of the third bit of the second register of shift of the control unit 1, a signal arrives at the first input of logic node 7. There is a shift by step units in the register 15 shift. The combination is changed at the fourth output of the logic node 7 and in block 9 the next line of information is prepared for output. Then, again, from the control unit 1, in three cycles, signals are sent to the third input of the diagnostic information storage unit 9, the second input of the operational storage unit and the first input of the logical node, etc., as described, until the information coincides with Hell Mente 14 Comp. When the signal coincides, the signal produced by the comparison element 14 comes through the first input of the control unit 1, where the second trigger is switched. As a result, the AND 29 element closes and AND 30 opens. Thus, in the next clock, not the information shift in the shift register 15, but the control signal will be sent to the second inputs of the block 10 of the memory of the numbers of faulty elements and the block 11 of the order of replacement of elements.

This signal, together with the signal arriving at the second inputs of the indicated blocks 10 and lie of the shift register 15 (on the set of M wires of the fourth output of the logic node 7) and determining the cell number in these blocks, from which the information is to be read, ensures it to the block 8 output information. Moreover, if a coincidence occurred on the steps

,

fO

15

0

25

1: N, this corresponds to the first N lines of block 10, where the numbers of single faulty elements are recorded (i.e., the number of one faulty element is indicated as a result of diagnostics). In this case, the signal from the output of the shift register 15 through the OR element 16 opens the OR 18 element on the first input and information from the output of the block 10 is output to the information output unit 8. In the event that a match is registered at the N i- 1: M step, this corresponds to the lines of block 10 from N + 1 to M, here are the numbers of several suspects. items. In this case, the signal from the corresponding bit of the shift register 15 through the element OR 17 at the first input opens the elements AND 18 and AND 19. Thus, in addition to the numbers of suspected elements, the information output order block 8 will receive information about the order of replacement of elements . ;

It is also possible that no information will be found from the operational storage unit 6 and from the diagnostic information storage unit 9 at all 1: M steps. In this case, the unit in register 15 will shift the offset to the M + 1 bit. Signal From this bit, the third output of the logic node 7 is fed to the second input of control unit 1, where the first trigger is triggered and thereby closes the elements AND 27-30J prohibiting the issuance of control signals from control unit 1. At the same time, the signal from the M + 1 output of the register of the 15 shift opens the first inputs of the elements And 20 and 21 of the logic node 7, and also through its five output enters the second input of the block 13 numbers of instructions. Under the action of this signal, the information from block 13 through the AND element 20 of the logical node 7 is fed to the input of the block 8 of information together with the contents of the operational storage unit 6, which is output through the element 21 ,.

Claims (2)

Invention Formula U A device for testing diagnostics of the equipment of program switching nodes with program control, containing series-connected block c30 0 45 0 five 713 The operational storage unit, the logic node and the information output unit, as well as the control unit, the output of which is respectively connected to the first input of the switching unit, through the input actions generator, to the second input of the switching unit, through the reference answers generator, to the first input of the comparison unit, the second input of the switching unit connected to the output, to the third input of the comparison unit, to the second, third and fourth inputs of the logical node, to the second input of the operational storage unit, while the second and third the outputs of the logical node are connected to the corresponding inputs of the control unit, characterized in that, in order to improve the diagnostic accuracy, a diagnostic information memory block, a memory block of numbers of faulty elements, a block for replacing elements, a block of instruction numbers and an information input block are entered, the output of which is connected respectively to the first inputs of the block of numbers of instructions, the output of which is connected to the fifth input of the logical node, the block of priority for replacing elements, the output of which is connected to the sixth input logical node, memory block of numbers of faulty elements, the output of which is connected to the seventh input of the logical node and diagnostic information block of the information, the output of which is connected to the eighth input of the logical node, the fourth and fifth outputs of which are connected respectively to the second inputs of the number block instructions, an order block for replacing elements, a memory block for faulty elements, and a diagnostic information memory block, to the third input of which is combined with the third inputs of the number memory block 198 faulty elements and the unit in turn (after replacement of the elements, the output of the control unit is connected. 2. The device according to claim 1, characterized in that the logical node contains a comparison element and a shift register, the shift inputs and settings of which are the second and third inputs of the logical node, the first outputs of the shift register are connected to the corresponding first inputs of the first OR element, the output of which is connected to the first input of the first element AND, the second input of which is the seventh input of the logical node, the output of the first element AND is combined with the outputs of the second, third and fourth elements AND, and is the first output logical node, the second outputs of the shift register are connected to the corresponding inputs of the second OR element, the output of which is connected to the second input of the first OR element and the first input of the second AND element, the second input of which is the sixth input of the logical node, the third output of the shift register, which is the third and the fifth outputs of the logical node, connected to the first input of the third element And, to the first input of the fourth element And, the second input of which is combined with the first input of the comparison element is the first input of the The first and second outputs of the shift register are combined and are the fourth output of the logical node, the eighth and fourth inputs of which are the second and third inputs of the element respectively: the comparison, the output of which is the second output of the logical node, and the fifth input of the logical node is the second input of the third element I. m Chpusk) ,,, „ (available H1-I pesuc7f3ocS6vf iMnML (Sbocho9 syo8nenia schemes 8 case of coincidence of infr {4 (/ (/  IJMJL M Ustan, dhod inycK) Fi.z K8x, SCy kdkh.GGEO KVH.1GVV 32 40} . 28 23 Kbh.8LU K $ x, JBW kdh. KMLU (8x.1 SXHH9  .i 5HIOZE Start Bx.i Sy BH.2BU Bh.1 BN Sx.lTBB bx 1 GZO VH.ZSU In1.BHDI In X.I RAM Bx.iS) fm3. Bx.i LU VH.2LU Vh. Bx.1BH1103E. isman Editor I. Sil nick Compiled by Timoshina L Tehred I.Popovich Proofreader V. Girn to Order 3400/56 Circulation 638 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 1327319 The number of shazoV in the register LU 2shap Rive. four