SU1262457A1 - Device for checking electronic objects - Google Patents

Abstract

The invention relates to automation and computer technology and can be used to control the response time and generate signals for controlling electronic objects, for example, in an automated process control system. The purpose of the invention is to increase the reliability of control by detecting a deviation of the lag time and anticipating the response of the control object to stimulating signals from the setpoints and expanding the functionality of the device by enhancing the signals and the presence of the retardation and anticipating the response of the control object and the amount of latency and advance. The device contains a pulse generator, a frequency divider, a synchronization trigger, three control triggers, two sign triggers, six AND elements, five AND-NO elements, an OR element, an OR-NOT element, a HE element, two one-shot. By introducing a pulse generator, a synchronization trigger, two additional control triggers, two sign triggers, five NAND. Elements, the element is NOT provided for controlling the latency and lateness of the signal at the output of the control object relative to its start signal, which prevents skipping of unusable according to the time parameters of the control objects and issue the control object controllers, signals, SG) necessary for correcting the time of its operation, which increases the reliability of roll and extends the trunk functionality ustroystvj va. 1 epf-ly, 2 Il.

Description

The invention relates to automation and computing, and can be used to control the response time and generate signals for controlling electronic objects, for example, in an automated process control system. The purpose of the invention is to increase the reliability of control by detecting a deviation of the lag time and anticipating the response of the control object to stimulating signals from the setpoints and expanding the functionality of the device by issuing signals about the presence of a lag and advancing the response of the control object and the magnitude of the latency and advance.

Fig, 1 is a diagram of the proposed device; figure 2 - timing charts of his work.

The device (Fig. 1) contains a pulse generator 1, a divider 2 of frequency j counter 3, overflow trigger 4, synchronization trigger 5, first 6, second 7 and third 8 control triggers, first 9 and second 10 sign triggers, fifth 5, third 12 sixth 13, first 14, second 15, fourth 16 elements AND, third 17, fourth 18, first 19, second 20, fifth 21 elements AND-NOT, element; OR 22, element OR-NOT 23, element NOT 24, the first 25 and second 26 single vibrators, start input 27, information input 28, control output 29, synchronization output 30, first 31 and second 32 information outputs. Pulse generator 1 is designed to generate clock pulses that synchronize the operation of the device. The pulse generator 1 is turned on when a single signal is applied to its input. Frequency divider 2 serves to output a sequence of sync signals to the object to be monitored and controlled, and consists of counter 3 and trigger 4. An overflow signal at the output of counter 3 appears after it arrives at the counting input of the K-th pulse (K is the counter conversion factor 3, determined by the characteristics of the object). The trigger 4 at the output 30 forms a meander, arriving at the object (figure 2). The trigger 5 synchronization together with the element NOT 24, the elements And 14, 15 produces the formation.

two phase-shifted sequences of pulses that synchronize the operation of the device.

Triggers 9 and 10, as well as the IS-HE elements 17 and 19, are designed to determine the sign of the value of dT. At DT 0, the trigger 9 is triggered, and at LTO, the trigger 10 is triggered. Triggers 9 and 10 are set to zero at the end of the (absence) pulse at input 28

dT Tr - T

R

T |, - time of arrival of the front sync

the signal generated by the device;

Tr - time of occurrence of the response of the control object. The trigger 6 controls, elements AND 1 1, 12, elements AND-NOT 20 and OR-NOT 23,; and the one-shot 25 serve to form control pulse sequences with dT 0.

A single-shot 25 on the forward output gives a short positive pulse on the leading edge of the signal at output 30, which ensures that trigger 6 is set to one. The zero pulse from the inverse output of single-slot 25 blocks the formation of a zero (setting) trigger signal 6. Elements 11 and OR-NOT 23 provide control of the installation of the trigger 6. Element I 12 is designed to control the impulse signals from the output of the element 15 to output 31. The triggers 7 and 8, the elements AND NOT 18 and 21, the element 16 and the one-shot 26 serve to form Control pulse sequences at a DT 0. The one-vibration 26 outputs a short pulse when the trigger 10 is set to one state. The trigger 7 is designed to form a signal proportional in duration to dd and is set to one if the single signal is present at the inverse output the trigger 4 after installation in the unit of the trigger 10. The trigger 8 controls the issuance of a sequence of pulses through the output element 32 and is set to a single-state in the presence of a high potential at the output of the trigger 7 on the sync pulse from the output of the element 15. 7 and and Setting the level triggers to zero is produced by a low signal from the zero output of the trigger 4. The element 13 and the element OR 22 serve to generate control signals at the output 29 of the device. The device works as follows. In the initial state, all the memory elements are zeroed. The initial state setting circuits are not conventionally shown. The signal Start at the input 27 of the generator 1 starts to form a sequence of pulses (figure 2). The pulses arrive at the inputs of the elements And 14 and 15, and through the trigger 5 and the element NOT 24 to the divider 2 frequency. Since the triggers 6-8 are in the zero state with zero levels on the forward outputs, and on the forward output of the single vibrator 25 there is a zero signal, the pulses from the outputs of the elements 14 and 15 do not change the state of the circuit. In this case, the element AND 13 and OR 22 at the input 29 of the device pass control of the signal from the output of the element AND 14 and the frequency g corresponding to the initial (zero) state of the object. After the counter 3 overflows and the trigger 4 activates, a single signal appears at output 30. In the future, two modes of operation are possible depending on the sign of the magnitude of dT. Consider the case when LT is 0 (figure 2), i.e. when the signal from the control object arrives at input 28 after the output of the sync signal at output 30. After the appearance of a single signal at output 30, a short pulse is formed at the forward output of the one-shot 25, which passes through the IS-NOT element 20 and sets the trigger to one. 6. The trigger 6 opens the element AND 12, as a result of which the pulse signals from the outputs of the elements 14 and 15 through the elements 13 and 13 and 22, are inverted alternately at the output 29 of the device. After the arrival of the signal - reaction n input 28, the AND-HE element 19 is triggered, the trigger 9 is switched to the high-level state at the direct output and the next pulse from the output of the AND 14 element, passing through the open AND 11 element and the OR-NOT element 23, the trigger 6 is set to the zero state. As a result, double frequency control signals are generated at the output 29 of the device during the dT interval. In addition, pulses are passed to output 31 of the device. Under the action of the signals at the outputs 31 and 29, the control and control object is returned to the initial state (when LT is equal to the specified value). Consider the operation of the device in the mode when (the reaction from the object is ahead of the sync signal from the device or lags behind by more than half a period). After the arrival of a single signal at input 28 through the element AND-NOT 17, the trigger 10 is set to the state with the unit level at the direct output. This triggers the one-shot 26. The short pulse from its output passes through the element AND-NE 18 and sets the state of the trigger 7. As a result, the next pulse from the output of the element 15 is set to one state of the trigger 8. The high potential from the output of the trigger 8 opens the element 16 and the output 32 of the device starts to receive pulses from the output of the element 14. th, the unit signal outputted from the flip-flop 8 is blocked by issuing pulsed control signals through an OR gate 22 to the output 29 of the device. After the occurrence of the leading edge of a single signal at the output 30 of the device is set to the zero state, the triggers 7 and 8 and the device returns to its original mode of operation. The trigger 10 returns to its initial state on the negative front of the signal at input 28. Consequently, during the interval dT, the pulses at output 29 will not be output, i.e. the frequency of the control signals generated by the device at output 29 is reduced. In addition, the device output 31 passes a number of pulses proportional to the value of it. This allows the control object to be controlled to bring the value of LT to a predetermined value. Thus, by introducing elements 1, 11, 13, 17-22, 24, one-shot 25 and 26, triggers 5-8, 10, provide control of the advance and lag of the signal at input 28 relative to the signal at output 30, which is time-related with the signal at output 27, which eliminates the omission of unsuitable by time parameters of the control objects and outputs set up The properties control the object of control, the signal necessary to perform time control of its operation, which will increase the reliability of the control and expand the functionality of the device.

About the invention 1. A device for monitoring radio-electronic objects, comprising a first control trigger, a first, second, third and fourth AND element, an OR element and a frequency divider, the first output of which is a device synchronization output, characterized in that In order to increase the reliability of the control by detecting the deviation of the delay time and advancing the response of the control object to stimulating signals from the given values and expanding the functional capabilities of the device by means of There are delay and advance reaction of the control object and the delay and advance time, a pulse generator, a synchronization trigger, second and third control triggers, first and second sign triggers, the fifth and sixth elements And, first, second, third, fourth and the fifth elements AND-NOT element OR-NOT, element NOT, the first and second one-shot, the input of the pulse generator is the device start input, its output is connected to the first inputs of the first and second elements AND, and to the T-input of the synchronization trigger, Connections direct output to a second input of the first AND gate directly and through the NOT element - to a second input of the second

the AND element and the input of the frequency divider connected by the first output to the first input of the first NAND element and the input of the first one-oscillator connected by a direct output to the first input of the second AND-NAND element, the inverse output to the first input of the fifth And element “connected by the second input with the output of the first element And, with the first

the input of the fourth element AND and the first inverting input of the sixth element AND, the output to the first input of the element OR NOT, the third input to the direct output of the first sign trigger connected by the inverse output to the first input of the third element IS-NOT, S input the output of the first NAND element, and the R input of the first sign trigger is an information input

device and connected to the second input of the first element AND-NOT, the second input of the third element AND-NOT and R the input of the second trigger sign, connected inverse output with the third input of the first element AND-NOT, the second input of the second element AND-NOT, S input with output the third element AND-NOT, the direct output - with the second input of the element OR — NOT with the input of the second one-shot, connected by the output with the first input of the fourth element AND-NOT, connected by the second input with the second output, stroke of the frequency divider, the third input of the third element AND -NO and R-BHOdami second O and the third control trigger, the output from the S input of the second control trigger connected to the direct output to the first input of the fifth NAND element connected to the second input from the first input of the third And element and the output of the second And element, to the S output the input of the third control trigger connected by the direct output to the second input of the fourth element I, the output of which is the first information output of the device, and the second input is connected to the first input of the CRPD element whose output is the control output of the device and The input is connected to the output of the sixth And element, the second inverting input of which is the second information output of the device and connected to the output of the third And element connected by the second input to the direct output of the first control trigger connected by the R input to the output of the OR-NOT element S-input - with the output of the second element NAND.

t .. 2, Device p.1, that is, in that the frequency divider contains a counter, the input of which is the input of a frequency divider, and the output is connected to the T input of a transfer trigger, the direct and inverse outputs of which the first and second outputs of the frequency splitter, respectively.

27

Claims (2)

Claim 1. A device for monitoring electronic objects, comprising a first control trigger, first, second, third and fourth AND elements, an OR element and a frequency divider, the first output of which is a synchronization output of the device, characterized in that, in order to increase the reliability of control by identifying deviations of the delay and lead time 35 of the reaction of the control object to stimulating signals from the set values and expand the functionality of the device by issuing signals about the presence of delay · and ope Relay 40 of the reaction of the control object and the value of the delay and lead time, the pulse generator, the synchronization trigger, the second and third control triggers, the first and 45 second triggers of the sign, the fifth and sixth elements And, the first, second, third, fourth and fifth elements are introduced into it AND-NOT, element OR-HE, element NOT, the first and second one-shot, and the input 50 of the pulse generator is the input of the start of the device, its output is connected to the first inputs of the first and second elements And and to the T-input of the synchronization trigger connected by direct 55 output with the second input of the first element AND directly, and through the element NOT - with the second input of the second * element And and the input of the frequency divider connected by the first output to the first input of the first AND-NOT element and the input of the first one-shot connected directly to the first input of the second AND element, the inverse output to the first input of the fifth AND element *, connected by the second input with the output of the first AND element, with the first input of the fourth AND element and the first inverting input of the sixth AND element, the output with the first input of the OR-HE element, the third input with the direct output of the first trigger of the mark connected by the inverse output to the first the course of the third AND-NOT element, the S-input - with the output of the first AND-NOT element, and the R-input of the first sign trigger is the information input 20 of the device and connected to the second input of the first AND-NOT element, the second input of the third AND-NOT element R is the input of the second trigger of the sign connected by the inverse output to the third input of the first AND-NOT element, the second input of the second AND-NOT element, the S-input with the output of the third AND-NOT element, the direct output is from the second input of the OR-HE element with the input of the second 30 one-shot connected to the first input of the fourth element AND NOT connected by the second input to the second you. the frequency divider, the third input of the third AND-NOT element and the R-inputs of the second and third control triggers, the output - with the S-input of the second control trigger connected by a direct output to the first input of the fifth AND-NOT element connected by the second input to the first input of the third element And and the output of the second element And, the output is with the S-input of the third control trigger connected by a direct output to the second input of the fourth element And, the output of which is the first information output of the device, and the second. input is connected to the first input OR element whose output is the control 'output of the device, and the second input is connected to the output of the sixth AND element, the second inverting input of which is the second information output of the device and connected to the output of the third AND element connected by the second input to the direct output of the first control trigger connected by R -input with the output of the element 7 1262457 that OR-HE, S-input - with the output of the second element AND-NOT. t .. 2. The device of Claim 1, which includes the fact that the frequency divider contains a counter, the input of which is the input of the frequency divider, and the output is connected to the T-input of the transfer trigger, the direct and inverse outputs of which are respectively the first and second outputs of the frequency divider. ^f7 U t -b • 5 ** / -plpllgii gppppppppgggplp- ··· lpllllshu JUU-LTU-L Π Π Π η - Л ΓΊ Π Π Π. _Γ nJTJTJTTlJTJTJ-Lr-L -GT ~ L_ „ A -4 = I i ......____________ I ——- τι — Щ - *** GUT! -.- ——-----—— 1...- .  At: tI I ΙΙ, Πί V —I --- 1—! Jp I \ JP & ftwtAT <0 J