SU1559365A2 - Device for estimating professional fitness of operators of automatic control systems - Google Patents

Abstract

The invention relates to automation, in particular to devices for the professional selection of operators. The purpose of the invention is to improve the accuracy of the device by fixing errors made in determining the location of characters in the sequence. The device contains a pseudo-random sequence generator 1, block 2 for presenting training information, switch 3, block 4 for generating audio signals, block 5 for comparison, operator console 6, block 7 for recording, timer 8 and block 9 for controlling the sequence of actions. Introduction to the device of the sequence control unit 9 makes it possible to determine the number of correct answers reproduced in violation of the sequence presented, i.e. more fully characterize the sensorimotor memory of the operator selected for work with complex ACS. 1 hp f-ly, 10 ill.

Description

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The invention relates to automation, in particular, to devices for the professional selection of automatic control system operators, and is an improvement of the device according to auth. No. 1479952.

The aim of the invention is to improve the accuracy of the device by fixing errors made in determining the location of characters (letters) in the sequence.

Figure 1 presents the block diagram of the device; Fig. 2 is a functional block diagram of the formation of audio signals; FIG. 3 shows a training information presentation unit; FIG. 4 - timer; figure 5 - switch; figure 6 - the operator; 7 shows a faint comparison; on Fig - registration unit; figure 9 - block control sequence of actions; 10 shows timing diagrams explaining the operation of the sequence control block.

A device for assessing the professional suitability of ACS operators contains a pseudo-random sequence generator (SRP), block 2 of presentation of educational information; the switch 3, the sound generation unit 4: the signals, the comparison unit 5, the operator console 6, the registration unit 7, the timer 8 and the action sequence control unit 9.

The sound signal generation unit 4 contains a counter 10, a counter-decoder 11, delay elements 12, elements 13, pulse generator 14, element 15, keys 16, one-wave op 17, generators 18 of sound (high, medium and low). ), first, second and third elements. OR 19-21 and electroacoustic transducer 22.

Unit 2 of presentation of educational information includes shift registers 23, counters 24, prohibition elements 25 and element 26.

- Timer 8 has a one-shot 27 (the pulse duration at the output is 59 ms), the first and second delay elements 28 and 29 (the delay time is 450 and 50 ms, respectively).

The switch 3 contains a short pulse shaper 30, the elements of the 31-ban, the elements of OR 32, the first, second and third groups of elements AND 33-35, the first, second, third groups

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Rs of RS-triggers 36-38 and a group of elements OR 39.

The operator’s panel 6 includes indicators 40, keyboard 41, RS flip-flop 42, element OR 43, elements AND 44, tone buttons 45, and Start button 46.

Block 7 of registration has keys 47, counters 48 correct answers and counter 49 wrong answers.

Comparison unit 5 contains the first and second groups of prohibition elements 50 and 51, the group of elements NOT 52 and the first, second elements OR.53 and 54.

The SRP generator 1 has the generator 55 itself (a pseudo-random sequence) and a delay element 56.

Sequence control unit 9 contains a shift register 57, first groups and second groups of elements 58 and 59, clock generator 60, one-shot 61, first-fourth elements OR 62-65, prohibition element 66, delay element 67 and counter 68.

In accordance with the instruction, the subject is presented with a table of three lines for 50 ms, four consonants in each line, which he memorizes, and reproduces only one of the lines, after distinguishing the corresponding tone of the sound signal. In this case, a sound signal is presented 50 ms before the display of the indicators (the lines of the letters on the information display board); simultaneously with them and after 150, 300, 500 and 1000 ms after them.

The device works as follows.

with

Turn on the power. By readiness

the subject presses button 46 on the remote control 6. The pulse from its output sets the trigger 42 to the zero position, enters the one-vibration input 27 of timer 8, triggers the latter through the elements OR 32 of the switch 3, feeds to the second R inputs of the flip-flops 36-38, setting they are in the zero position, will go to the input of the generator 56 delay element 1. to the third input of block 9, setting the register 57 to the initial position, to the third input of block 2, setting the registers 23 and counters 24 to the initial state, and to the control input of the element And 15 block 4, ensuring the record is consistent the number of pulses from the generator 14 to the counter-decoder 11. At one of the outputs of the counter-decoder 11, for example the second, a single potential is applied to the equalizing input of the key 16.

The delayed pulse from the output of the element 56 is fed to the first input of the generator 55, ensuring that it is turned on and supplying a pseudo-random sequence of pulses from the first outputs to the first inputs of block 2 - information inputs of registers 23, and from the second output of the generator 55 - clock pulses, through the information inputs of elements 25 prohibition of the second (shift) inputs register

23. Pseudo-random sequence of pulses from the output of the first bit of register 23 is applied to the counting input of the corresponding counter.

24. Since the four bits of the first generator 1 bandwidth use outputs X, X3 and Y, the corresponding combinations of ones and zeros are sent to the inputs of registers 23.

When a unit arrives at the first input of the register 23t, the output of the counter 24 {overflow pulse, which goes to the control input of the element 25, stopping the supply of clock pulses to the second input of the register 231 and the input of the And 26 element.

In the same way, four units will be written into registers 23 4 and 233. When units appear at the outputs of all counters 24 at the output of the AND 26 element, the potential that goes to the second input of the generator 1, including the last, and to the control inputs of the AND 33 elements -35 switch 3.

The 4 units recorded in the registers 23 of the block go through elements 33-35 to the first S-inputs of the corresponding flip-flops 36-38, ensuring the supply of unit potentials from their outputs to the corresponding indicators 40 of the console 6 and through the elements OR 39 to the elements HE 52 of the block 5 and elements AND 58 block 9.

When occurrence at the output of the element 28 of the timer 8 delayed pulse with a duration of 50 ms, the latter arrives at the input of the counter 10 of block 4, ensuring the appearance At its first output a unit potential, which through

element OR 19 zapugtng one-shot 17. At the same time a single potential from the first output of the counter 10 pod0

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17,

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On the control input of the key block 7.

The impulse from the output odchovibratorg fed to the information inputs of the keys 16 passes through the key I6g, since a unit potential from the output of the counter-decoder 11, ng the input of the sound generator 18 is fed to the control input by running the latter.

The mid-tone sound frequency from the output of the generator 18 is fed through the element OR 20, the element AND 13 ,, to the other input of which the unit potential is fed from the first output of the counter 10, and the element OR 21 to the input of the electroacoustic converter 22, which emits a short tone of the middle frequency instructing the subject to reproduce on the keyboard 41 letters of the second line.

A delayed pulse with a duration of 50 ms from the output of element 29 of timer 8 is fed to the second inputs of indicators 40 of console 6, ensuring for 50 ms those indicator cells to which unit potentials from the first output of the switch group are supplied to the 3rd outputs of flip-flops 36-38. The falling edge of the delayed pulse applied to the input of the imaging unit 30 will cause a short pulse to appear at its output, which passed through the information inputs of the elements 314 and 31 (since zero control potentials are applied to their control inputs from the first and third bits of the counter- decoder 11) and elements OR 324 and 32, will return

5 triggers 36 and 38 to zero position. The inputs of the second group of the block 5 - the elements NOT 52 and the inputs of the second group of the block 9 - the elements I 58 receive only a single potential

0 lines (from trigger 37 of switch 3).

At the same time, a short pulse from the output of the imager 30 is supplied through the OR element 63 of block 9 to the shift, and the delay element 67 to the information input of the register 57, writing to its first bit unit.

At the beep (medium frequency tone), the subject presses

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45Ј button. The impulse from its output through the element I 44, to another input of which the unit potential is fed from the output of the counter-decoder 11 and the element OR 43, transfers the trigger 42, ensuring the supply of the unit potential to the keyboard keys 41. The operator REPRODUCES the filled characters (letters) of the second line, pressing the corresponding keyboard keys 41.

The impulse from the output of the keyboard key 41 (Fig. Ua) through the element OR 62 of the block 9 is fed to the first input of the clock generator 60, the launch of the last Clock pulses (Fig. 106) from the output of the clock generator 60, fed through the element OR 63 to the first (shift) the input of register 57 moves the unit along its bits (outputs) until a single potential is supplied to the second input of the AND 58 element, at the first input of which there is a single potential from the output of the OR element 39 of the switch 3.

Suppose that at the output of the element OR 39 there is a single potential. When a unit appears at the second output of the register 57, which is applied to the second input of the element 58, the output potential of the latter appears as a unit potential (Fig. IV), which is fed through the element OR 65 to the input of the one-shot 61 (the one-shot 61 delays whose time is 0.5 times the duration of a clock pulse). The pulse from the output of the one-shot 61 (Fig. South) is fed to the information input of the prohibition element 66 and to the second input of the clock generator 60, stopping the supply of clock pulses from the output of the last (Fig 106) to the shift input of the register 57. At the same time, the unit potential from the output of the And element 58Ј is applied to the first input of the AND element 592.

If the subject reproduced the sign correctly (pressed the keys corresponding to the indicator 40 displayed), then the unit potential from the output of this keyboard key 41 will go to the first inputs of the group of block 5 - to the information input of the element 50, to the control input of which zero potential is given NOT 52, Impulse with output0

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Yes, element 50 through the element OR 53 and the information input of the key 47 of block 7, to the control input of which the unit potential is fed from the first output of the counter 10 of block 4, will go to the counter 484, fixing the correct answer on this sound presentation.

At the same time, the pulse from the output of the corresponding element 50 of block 5, if the subject correctly identified the letter in the line and its location — the first (the subject reproduces information in the same sequence as it was shown on the display), goes to the second input of the element 59g of the block 9. The impulse from the output of the element AND 592 (FIG. YD) through the element OR 64 will go to the control input of the prohibition element 66, preventing the response, reproduced in a predetermined sequence, from being recorded by the counter 68 of block 7 (FIG. 10-1).

If the subject correctly identified the letter, but reproduced it not in accordance with the location in the line on the scoreboard 40 (for example, he passed the second one at the location in the line), then there would be no pulse at the output of the And 59 element (FIG. 2), at the control input of the element 66 there is a zero potential. The pulse from the output of the one-shot 61, filed on the information input of the element 66 of the ban, the output of the latter is fed to the input of the counter 68, fixing the last response, played in violation of the specified sequence (figure 10-2).

If the answer is incorrect, the pulse from the output of the keyboard key 41 enters the information input of the element 51, the control input of which has zero potential from the output of the trigger 37 of the switch 3, passes from the output of the element 51 through the element OR 54 to the second input of the block 7, fixing in the counter 49, the wrong answer, and the input element OR 64 block 9 (fig.10zh-3), preventing the passage of a pulse from the output of the one-shot 61 (figure 10-3).

If the tone (line) is recognized incorrectly, the answers are not recorded.

After the answer (reproduction of all characters of the line) the subject is tested again.

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Va presses button 46, thereby changing the time of the sound signal and receiving in random order an indication of the playback of the next line.

At the output of the counter-decoder 1 of block 4, for example, the third, there is a unit potential that specifies the third line, a low tone signal, and a delayed pulse from the output of the element 28 of the timer 8 provides the appearance at the second output of the counter 10 of the unit 4 potential that through the element 12 ,, (delay time 50 ms) and the OR element 19 is fed to the input of the one-shot 17, providing a sound signal at the same time as the start of the presentation of information (the display of indicators 40).

The operation of the remaining blocks and elements of the device is similar to that described (as with the first pressing of button 46). With the subsequent pressing of the button 46, the third through the sixth of this cycle, the delay of a single pulse is provided by the elements 2g - 125 and is 150,300, 500 and 1000 ms, respectively.

At the end, the checks are removed; readings from counters 48 g - $ 48, in which the correct answers are recorded depending on the time of presentation, signal, from counter 49, which takes into account incorrect answers, and from counter 68, which fixes the number of violations of the sequence of answers, according to which, in accordance with the method developed by the authors , the duration of the visual memory of one torus is judged.

Claims (2)

1. A device for assessing the professional suitability of operators of automated control systems for auth.St. No. 1479952, characterized in that, in order to improve the accuracy of the device, a sequence of actions control unit is introduced into it, the first group of information inputs of which are connected to the top 10 Jq 15 0 five 0 five 0 five 0 operator dashboards, the second group of information inputs — with the outputs of the second switch group, the output of which is connected to the recording entry of the control unit — control sequence, the third group of information inputs of which is connected to the outputs of the comparison unit, the reset input of the sequence control control unit, connected to the output of the operator's console, and the prohibition input - with the second output of the comparison block. 2. The device according to p. Differs in that the sequence control block contains a register, two groups of AND elements, four OR elements, a clock generator, a one-shot, a prohibition element, and a delay element, whose input is connected to the first input of the first element. the entry entry of the block, and the output is connected to the information input of the register, the shift input of which is connected to the output of the first element OR, the second input of which is connected to the output of the clock generator, the start input of which is connected to the output of the second element OR, whose inputs are the first group of information inputs of the block, the clock generator stop input is connected to the one-shot output, the input of which is connected to the output of the third OR element, whose inputs are connected to the outputs of the first group of And elements, the outputs of which are connected to the inputs of the fourth OR element, whose input is the block inhibit input, and the output is connected to the control input of the inhibit element, the output of which is connected to the counter input of the counter, and information The input is with the one-shot output, the block reset input is the register reset input, the outputs of which are connected to the first inputs of the first group of elements AND, the second inputs of which are the second group of information inputs of the block, the third group of information inputs of which are the second inputs of the second group of elements AND. s „FLn Ln C - U O CPU Fie.7 / V FIG. 8