SU1679195A1 - Device for forecasting the condition of control systems - Google Patents

Abstract

The invention relates to a measurement technique and can be used in predicting the state of control systems. The purpose of the invention is to improve the accuracy of prediction of the state of control systems. In the device, a horizontal scanning generator 8, a vertical scanning generator 9, a generator of sinusoidal oscillations 15 and a sawtooth generator 18 through block 16 coded matching provide three-dimensional oscillography through 3 H (L S o o ate

Description

the cathode ray tube 1, the mask 2, the optical system 3 and the photosensor 5 and affect the comparators 10.11 and 17, respectively, which receive input signals via the input buses 13.14 and 19, respectively. When an electron beam hits the screen The beam tube 1 at a certain position at the outputs of the comparators 10, 11 and 17 appears signals that trigger the element b coincidence. In this case, the signal from the output of the coincidence element 6 opens the key 5, from the output of which a signal characterizing the value of the hypothesis is supplied to the output bus 12. In addition, the signal of the coincidence element 6 at a time interval defined by the delay element 7 ensures the disappearance of the signals at the outputs of the comparators 10, 11 and 17 and the coincidence element 6, after which the screen scanning cycle of the cathode ray tube 1 is repeated .1 Il.

The invention relates to a measurement technique, namely, devices for predicting the state of control systems.

The purpose of the invention is to improve the accuracy of prediction of the state of control systems.

The drawing shows a proposed device for predicting the state of control systems.

The device contains a series-connected cathode ray tube 1, mask 2, optical system 3 and photo sensor 4, made in the form of a photoresistor and connected to the information input of the key 5, the coincidence element 6, the delay element 7, the horizontal scanning generator 8, the vertical scanning generator 9 , the first and second comparators 10 and 11, the output bus 12 and the first and second input buses 13 and 14. The key 5 is connected by an output to the output bus 12 and connected by a control input to the output of the coincidence element 6 connected to the input the delay element 7 and to the first control inputs of the horizontal scanning generator 8 and the vertical scanning generator 9. The horizontal scanning generator 8 and the vertical scanning generator 9 are connected by second control inputs to the output of the delay element 7 and connected to the first inputs of the first and second comparators 10 and 11, respectively. The first and second comparators 10 and 11 are connected by the second inputs to the first and second inputs, respectively. busbars 13 and 14 and are connected by outputs to the first and second inputs of coincidence element 6, respectively.

The device also contains a generator of 15 sinusoidal oscillations connected by the first and second control inputs to the outputs of the coincidence element 6 and the delay element 7, the coded matching unit 16 connected by outputs to the cathode ray tube 1, the third comparator 17 connected by the output to the third input of the element 6, and a low-frequency sawtooth generator 18. The coded matching unit 16 is connected by inputs to the outputs of a horizontal scanning generator 8, a vertical scanning generator 9 and a sawtooth voltage generator 18 and to a sinusoidal oscillator generator 15 output connected to the saw voltage generator 18 input and to the first input of a third comparator 17 fitted with connected its second input is the third input bus 19. The coded matching unit 16 consists of an encoder 20, a decoder 21 and a passive element block 22 connected between them and In this case, the inputs of the encoder 20 coincide with the inputs of the coded matching unit 16, and the outputs of the decoder 21 - with

the outputs of block 16 coded matching.

The signals of the horizontal generator 8, the vertical generator 9, the generator of 15 sinusoidal oscillations and the generator 18 sawtooth voltage are determined by the following inequalities:

g (0.5-0.9) fc fn fzffy fx;

2fnЈ fz: 5 fy / l67 10fz: Ј fy fy / 2.

where fc is the mains voltage frequency;

fz is the oscillator signal frequency of 15 sinusoidal oscillations;

fx - the frequency of the main harmonic of the signal generator 8 horizontal scan:

fy is the main harmonic frequency of the vertical oscillator signal 9;

fn is the fundamental frequency of the signal from the saw-tooth generator 18.

The device works as follows.

The projection of the electron beam on the screen of the cathode ray tube 1 is transmitted to the working surface of the photosensor 4 through the optical system 3 and the mask 2, so that areas corresponding to the hypotheses about different states of the control system are distinguished in three-dimensional space. In this case, the optical transmission coefficient of the mask 2 has the same value for the points of one hypothesis and different for different hypotheses. The electron beam travels across the screen of the cathode ray tube 1 along a predetermined trajectory determined by the horizontal scanning generator 8, the vertical scanning generator 9, the sinusoidal oscillator 15, the sawtooth generator 18 and the coded matching unit 16. In this case, the horizontal scanning generator 8, the vertical scanning generator 9, the sinusoidal oscillator 15 and the sawtooth voltage generator 18 provide three-dimensional oscillography,

The first, second, and third comparators 10, 11, and 17 compare the input signals on the first, second, and third input buses 13, 14, and 19, and the signals of the horizontal scan generator 8, the vertical scan generator 9, and the sinusoidal oscillator 15, respectively. The signals at the outputs of the first, second and third compilers 10, 11 and 17 are absent if the signals of the horizontal scanning generator 8, the vertical scanning generator 9 and the sinusoidal oscillator generator 15 are less than the input signals coming respectively through the first, second and third the input busbars 13, 14 and 19. When an electron beam hits the screen of the cathode ray tube 1 at a certain position, the signals of the horizontal scanning generator 8, the vertical scanning generator 9 and the sinusoidal oscillator 16 oscillate They exceed the input signals, respectively, on the first, second, and third input buses 13, 14, and 19, which leads to the appearance of signals at the outputs of the first, second, and third comparators 10, 11, and 17, which trigger the coincidence element 6. The signal from the output of the coincidence element 6 enters the first control inputs of the horizontal scanning generator 8, the vertical scanning generator 9, and the sinusoidal oscillator 15, ensuring that the signals corresponding to the input signals arriving at the first, second and third input buses 13 are stored at their outputs, 14 and 19. In addition, the signal from the output of the coincidence element 6 opens the key 5, from which output a signal characterizing the hypothesis value is supplied to the output bus 12. At the time interval defined by the delay element 7, the signal of the coincidence element 6 is fed to the second control inputs of the horizontal sweep generator 8, the vertical sweep generator 9 and the sinusoidal oscillator 15, which leads to the disappearance of the signals at their outputs. The signals at the outputs of the first, second and third comparators 13, 14 and 19 and the coincidence element 6 disappear, and the scanning cycle of the screen of the cathode ray tube 1 is repeated.

Claims (1)

Claims An apparatus for predicting the state of control systems comprising a series-connected cathode ray tube, a mask, an optical system and a photo sensor connected by an output to an information input of a key connected by an output to an output bus and connected by a control input to the output of a coincidence element connected to the input of the delay element and to the first control inputs of the horizontal scanning generator and the vertical scanning generator, which are connected to the control inputs and to the output of the delay element and the outputs are connected to the first inputs of the first and second comparators, connected by the second inputs to the first and second input buses, respectively, and connected by the outputs to the first and second inputs of the match element, respectively, characterized in that, in order to improve the accuracy of the prediction state neither the control systems, the generator of sinusoidal oscillations connected to the outputs of the first and second control inputs to the outputs of the coincidence element and the element aderzhki block coded matching coupled outputs with cathode ray tube, the third comparator output is connected to the third input element of matching between the generator and the sawtooth voltage, wherein the coded block matching inputs connected to the outputs of the horizontal sweep generator, generator vertikalnoygeneratora sawtooth and sweep and sawtooth generator on the first input of the third comparator of power supplies and to the output of a sine-wave generator connected to its second input long-range oscillations connected to the input of a third input bus.