SU1247843A1 - Device for checking parameters and diagnostic checking for failures - Google Patents

Abstract

The device belongs to the region. automatics and is intended for use in monitoring systems for diagnosing failures of software and temporary devices and time delay devices, as well as for conducting technological and experimental studies. Introducing n second elements NOT, n fourth elements I, n second triggers, fifth elements I, the first and second isolating elements and the switch allows to increase the reliability of control results, since the device provides separation of faults and performs diagnostics of object failures control The device contains a driver of control signals, a generator of rectangular pulses, a switch and the number n of monitored parameters h of pulse shapers, n first elements I, n first triggers, second element I, first element NOT, third element I, and fourth elements I, and the second elements NOT, and the fifth elements I, n the second triggers, the display unit, the first and second elements of the isolation. 2 Il. i SL ts9 CX 4i OP

Description

one

The invention relates to automation and can be used in systems for monitoring and diagnosing failures of software-time devices and time-delay devices, as well as for carrying out technologically and experimental heights of the first studies.

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

FIG. privovedey functional design of the device; 2 - time diagrams of the device operation (a- normal operation of the control object; 5 - in the case of leaving, the h-ro parameter is outside the tolerance zero). ,

As shown in Fig. I, the Conrol object 1 is depicted and a device for monitoring the parameters and diagnostics of failures, which contains the driver 2 control signals, the generator 3 rectangular impulses, the switch 4, the pulse generator, the first elec

teli 5, -5 ,, men gee 11 6 - b ,, first trip trip 7, - 7 | , the second element And 8, the first element is NOT 9, the third, the element AND GO, the second elements are NOT 11 - n 3611 nye elements 11 I 2 | ,, second tr11G gera13. (13ji, fifth elements of M 141-4f, display unit 15 , the first and decoupling elements 16 and 7. Pa of Fig. 2 denotes the first Bypass 18 of the former 2, the second output 19 of the former 2, the second .outputs (nerve) 20 and the (nth) 21 generators 3 rectangular pulses, the first (n | -2) th output of the generator 22 3 rectangular pulses, a third (ni-I) 23 output of the generator 3 rectangular pulses, the first output 24 (parameter) of the object 1 controller, the h-th output 25 - (parameter) volume EKTA I control, generator 26 output, 5 pulses, generator 27 output, 5 pulses, output element 28 And 6, output 29 element And 6, output 30 Trigger 7, output 31 trigger UN, output 32 element And 8, output 33 element HE 9, output 34 of element II 10, output 35 of element 11 NOT. ,, output 36 of element NOT ,, exit 37 of element I 12, output 38 of element And 12 ,, exit 39 of thrnger 13 /, output 40 of trigger 13, exit 41 of And 14, the output of 42 elements And l4 state 43 The norm of the block 15 of the indicator. zing, condition 44 Block failure

15, state 45 Number of the failed parameter of the display unit 15.

The device works as follows. in a way.

According to the signal from the first output (18) of the mapper 2, all the triggers are set to a goole state, the generator of 3 rectangular pulses is started and the control object 1 starts working (for example, a program-time mechanism). At the output of the generator 3, rectangular voltage pulses, the beginning and each, of which are set after the tolerance of the corresponding contact, are formed; rolling parameter (Fig, 2, positions 20 and 21). These voltage pulses flow through switch 4 to the inputs of the And 6 elements. In the moment

five

0

occurrences of signals at the outputs of object 1 of control 2, positions 24 and 25), which through switch 4 are connected to the corresponding inputs of drivers 5, -5, pulses, the latter form short voltage ampules (figure 2, positions 26 and 27) that go to the other inputs of the elements And 6 ,,. In the case of the normal functioning of the control object 1 (Fig. 2a), the outputs of the elements 6 and 6, 6,. Appear voltage adapters (fig. 2 Q, positions 28 and 29, which overturn the 5 trigger 7y - .2 a, positions 30 and 31 ,,, At all inputs of element II 8. 8.o there are single signals, and at the output of this element appears - a signal (Fig. 2 a, after 32) causing block 15 state indication 43 Norm (FIG. 2a, position 43J, At the output of the element And 10 and the outputs of the elements 14 - 14, in this case there are no signals

 (figa, position 34,41 and 42 /.

In the case of a code. any parameter Z.a tolerance limits (fig. 25, position 25b) the pulses at the inputs of the corresponding element And 6 do not fall, and the signal at the output of this element is absent (figure 2, position 29). The corresponding trigger 71 is fixed in zero position (fig. 25, position 31) and, therefore,

5, the signal at the output of the AND 8 element is absent (FIG. 25, reference 32), wherein the first inputs of the elements AND 10 and AND 121 are received as single signals.

0

the signals from element 9 (FIG. 28, item 33) and element 11; (Figure 25. Item 36).

At the end of the test cycle, the generator of 3 rectangular pulses generates a polling signal at the first output (Fig. 2, position 22). This signal from the output of the AND 10 element (Fig. 2 (5, item 34) is fed to the input of the display unit 15, in which the Failure state is indicated (Fig. 2 (5, position 44), and from the output of the And 12 element; (Fig.2.5, POS.38) the signal goes to the single input of the trigger 13, -, which is transferred to the single state, fixing the number of the parameter that is out of tolerance (Figure 2, position 40). After the occurrence of the Failure condition The display unit 15, using the driver 2 of the control signals, outputs a signal (FIG. 2 b, position 19) to the control input of the generator 3 rectangular The pulse to the control input of the switch 4 and to the zero inputs of the flip-flops 7, 7 which translate into zero state (Fig. 2.8, position 30). The separation between the circuits of the first (18) and second (19) outputs of the shaper 2 takes place isolating elements 16. and 17 (e.g., valves).

When a signal arrives at. the control input of the switch 4, the latter turns off the outputs of the object 1 of the control from the inputs of the formers 5 5 pulses, and the second outputs from the first to n) generator of 3 rectangular pulses) from the second inputs of the elements 6, - 6f, connected to the released shaper inputs 5 - 5 | pulses and elements AND (- 6,., the third (n + 1) -th output, generator 3 rectangular pulses..

If there are no failures in the control device circuit, then the test pulse from the (n + 1) -th output (23) of the generator 3 rectangular pulses (Fig. 28, position 23) passed through the formers 5, - 5 | pulses (FIG. 28, positions 26 and 27) and elements AND 6, -6f (FIG. 2B, positions 28 and 29), flips all the triggers 7-7u into one state (FIG. 2 S, positions 30 and 31). At the output (32) of the second element And 8, a signal appears (Fig. 26, position 32), which

resolves the indication in block I5 of the state 45) Number of the failed parameter (Fig. 25, position 45), after receiving a signal from the corresponding output of the AND elements 14; 14, (Figure 2, item 42).

The unit 15 is designed so that when status is displayed (43) Norm, the occurrence of states (44) Failure and (45) Number of failed parameter is impossible and vice versa, when status is indicated (44) Failure and (45) Number of failed gtameter or . and only states. (44) Failure state (43) The norm is not highlighted. At the end of the test cycle in block 15, indices 1 and the following conditions can occur: 43 Norm / - the test object is in good condition; 44 Failure - a fault in the control device; - 44 Failure and 45 Number of the failing parameter - the object of control is faulty according to the specified parameter.

Claims (1)

Invention Formula A device for monitoring h parameters and diagnostics of failures, containing and pulse formers connected by outputs to the first inputs of the corresponding first elements I, connected by outputs to the installation inputs of the corresponding first triggers connected by outputs to the inputs of the second element I connected to the output of the input Norms of the display unit and through the first element NOT to the first input of the third element AND connected to the input to the input Failure of the Idaccade unit, the driver of the control signals connected by the first output to the control which is the output of the device and the start-up input of the generator of rectangular 11-pulses, characterized in that, in order to increase the reliability of the control results, h of the second HE elements, and the fourth AND elements, the second trigger, .h fifth elements AND, the first and second isolators and the switch connected by the first information inputs to the information inputs of the device, the second and third information inputs to the second outputs and to the third output respectively . , five . , 1 controlled rectangular pulse generator, the first outputs to the inputs of pulse shapers, the second outputs to the second inputs of the pepper elements AND, and the controlling input to the controlling input of the controlled generator of rectangular pulses, to the second output of the control signal distributor and through the First isolation element - to the output of the second isolation element and to the zeroing inputs of the first triggers connected by the outputs through the second .E elements with the first inputs of the corresponding fourth And elements connected 47I43 6 second inputs to the first output of the controlled generator of rectangular pulses, and outputs to the installation inputs of the corresponding second 5 triggers connected by zeroing inputs to the input of the second isolator and to the first input of the driver of control signals, and outputs to the first inputs of the corresponding 10 n of the And elements connected by the second inputs to the output of the second element I, and the outputs to the corresponding inputs Number from 15 kazevshego nation. parameter block indie .WAW r-1 Phi1. I  J.L Editor I. Segl Nick Compiled by N.Gorbunova Tehred VT. Kadar Corrector V .... Boot ha Order 4124/47. Circulation 836, Subscription HPS-SHI USSR State Committee for inventions and discoveries. 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing enterprise, Uzhgorod, st. Project, 4