SU1571641A1 - Device for professional selection - Google Patents

Abstract

The invention relates to automation, in particular to devices for psycho-physiological research, and can be used in assessing the professional suitability of operators of various control systems. The purpose of the invention is to expand the didactic capabilities of the device by quantifying the amount of perception. The device contains a generator unit 1, a time setting unit 2, a comparison unit 3, a control unit 4, a task setting unit 5 (the number of characters per line), an information presentation unit 6, a registration unit 7, and an operator console 8. The introduction of the comparison unit 3 and the new execution of the control unit 4, the unit for setting standards and the presentation unit 6 made it possible to automate the process of conducting and completing tests (checks) and immediately quantify (in numbers) its result in terms of the test's short-term memory. 3 hp f-ly, 8 ill.

Description

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The invention relates to automation, in particular to devices for psychological research, and can be used in the evaluation of the professional suitability of operators of various control systems.

The purpose of the invention is to expand the didactic capabilities of the device. 1 Figure 1 shows the functional-JQ on the diagram of the device; Figures 2-8 are examples of a specific implementation of the blocks included in the device.

The device for professional selection contains (FIG. 1) a unit 1 of 15 generators, a time setting unit 2, a comparison unit 3, a control unit 4, a task setting unit 5, an information presentation unit 6, a registration unit 7 and an operator panel 8. 20

The generator unit 1 (FIG. 2) comprises a pseudo-random sequence generator 9, a clock pulse generator 10 and a prohibition element 11.

The comparison unit 3 (FIG. 3) includes a shift register 12, the first 13 and the second 14 groups of elements AND, the group of elements EXCLUSIVE OR - NOT 15, the first 16 and second 17 elements AND, delay element 18, prohibition element 19 and item NOT 20.

The control unit 4 (FIG. 4) contains a shift register 21, a pulse counter 22, a group of elements AND 23, a single vibrator 24, a driver 25 of pulses 3, an element AND 26, an element OR 27, the first 28 and a second 29 delay elements.

The standard setting unit 5 (FIG. 5) includes a reversing register 30, a group of PU elements 31, an RS flip-flop 32, the first 33 and second 34 elements OR, a delay element 35, the first 36 and second 37 switching elements (buttons), indicator group 38.4

The information presentation unit 6 (FIG. 6) contains a shift register 39, code converters 40 and an indication unit 41.

The registration unit 7 (Fig. 7) contains the first 42 and second 43 counters, the first 44 and second 45 switching elements, the first 46 and the second, 47 elect. cops delay, the first 48 and second 49 elements OR, the element And 50.

The operator’s console 8 contains a keyboard 51 with numeric keys from 0 to 9 and a Start key, a group of encoders

52, a group of elements OR 53, an element OR 54 and a banner 55 End.

The device works as follows.

Pre-switching elements 44 and 45 in block 7 set,. for example, in the fifth position, with a capacity of 42 and 43 counters, equal to ten, ensuring the likelihood of unrecognition, 5. In this case, the number of characters (digits) in the rows will provide 50% error-free reproduction, corresponding to the amount of perception (volume of short-term memory).

Turn on the power. Registers 12, 21, 30 and 39 are set to the initial state, counters 22, 42 and 43, trigger 32 are set to the first (at the output O position.

In the reverse register 30 of block 5, by pressing button 36, 1 is entered, and then by pressing button 37, 1 is advanced by register 30, setting to the position corresponding to the number of characters per line, initially presented to the subject, for example, six.

Press the Start buttons of the keyboard 51 of the console 8, start the generator 10 of the block 1. Clock pulses from the output of the generator 10 through the prohibition element 11, the control input of which has zero potential from the output of the element OR 33 of the block 5, are fed to the input of the generator 9, providing the appearance at its output a pseudo-random sequence of pulses applied to the information input of the register 39 of block 6, which is recorded in the last clock pulses fed to the shift input from the output of the generator 10.

The clock pulses from the third output of the generator 1 output unit 10 are fed to the first input of the And 26 element and the synchronization input of the one-shot 24 of the block 4, but do not pass further, since zero potentials are supplied to their other inputs.

The recording in register 39 of block 6 continues until it appears at the sixth separate output of the unit, which is applied to the second input of element AND 31 5 of block 5. Uniform potential from the output of element AND 313 through the element OR 33 is fed to the control input of element 11 of the prohibition of block 1

stopping the supply of clock pulses From the output of the generator-10 to the input of the generator 9 and the shifting point of the register 39 of the block 6.

The code combinations from each group of outputs of the register 39 are fed to the inputs of the corresponding converters 40, - AO code, which convert the input code 2421 to the output seven-segment code N7. The seven-segmented code from the outputs of the converters 40 is fed to the inputs of the display unit 41.

At the same time, a single potential from the output of the element OR 33 of block 5 is fed to the input of block 2, a potential one-shot, causing the appearance of a pulse with a duration of 2 s at its output. This pulse is applied to the control input of the display unit 41, ensuring that it is displayed during

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The subject visually fixes the flashing of the numbers on the indicators and their sequence in a row, and then reproduces the filling of the number in the same sequence using the numeric keys of the keyboard 51 of the console 8.

Let the row show the sequence of numbers 374275. The subject first presses the keys of the keyboard 51 with the number 3. The pulse from the output of the key with the number 3 is fed to the input of the encoder 52, ensuring the appearance at its output of a four-digit binary code corresponding to the number

3 in the code 2421 and identical to the code at the input of the converter 40 of block 6.

The code combination from the output of the encoder 524 of the console, 8 through the elements OR 53 is applied to the information inputs of the register 21 of block 4.

The impulse from the output of the key with number 3, through the OR element 54 of the console 8 is fed to the first control input of the register 21 of block 4, has transferred the last to parallel recording mode, and has passed through the delay element 28 to the second control input of the register 21, providing parallel writing of a binary number from the outputs of the elements OR 53 (encoder 524) of the console 8 to the register 21.

The pulse from the output of the delay element 28 is also fed to the first input of the one-shot 24, causing the appearance at its output at the moment the clock pulse arrives at the synchronizing input of a single potential.

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duration 4T - four periods of the clock pulse. A single potential from the output of the one-shot 24 is applied to the second input of the And 26 element, ensuring the passage of four clock pulses from the output of the generator 10 through the first input of the And 26 element, the shift input of the register 21 and the movement of information in the trans. 21 into four tons of act, t . advancement in register 12 of block 3, in which the code of this digit is written. At the same time, the pulse from the output of the single-detector 24 is recorded in the counter 22.

Then, the subject presses a key with the number 7, reproduces the second memorized number of the line, while the operation of the device elements occurs. dit similarly described.

After reproducing the digit 5, at the sixth output of the counter 22 of the block 4 there is a pulse that is applied to the second input of the element 233. Since the unit from the sixth output of the reverse register 30 of the block 5 is applied to the nepBot ry input of the element 23, the pulse from the output element 23, block 4 through the element OR 27 enters the input of element 29, the delay time of which is longer than the delay time of element 28, the delayed pulse from the output of element 29 enters the input of the imager 25, a short pulse from the output of which is fed to the third input of block 3 - the second element inputs in AND 13, ensuring the reading of information from the output of the register 39 of the block 6 and the register 12 of the block 3 to the inputs of the elements EXCLUSIVE OR - NOT 15.

If the line (answer) reproduced by the subjects is identical to the presented line, then at the output of the element 16 of block 3 there is a pulse, which through element 17, to another input of which a pulse is given from the first output of element 18 (the delay time of the first output is equal to the sum of triggered by elements 13 (14), 15 and 16), is fed to the first input of block 7 — the counting input of counter 42, fixing the correct answer.

The impulse from the first output of the element 18, applied to the information input of the element 19 of the prohibition, will not pass to its output, since a single impulse from the output of the element 16 is fed to the control input.

The delayed pulse from the second output 18 will go to the inputs Reset registers 12, 21 and 39 and the zeroing input of counter 22.

When a zero potential appears at the control input of element 11 of block 1 after resetting the register 39, clock pulses from the output of generator 10 are fed to the input of generator 9, ensuring that a pseudo-random sequence is fed from its output to information input of register 39, which is recorded in the last clock pulses arriving at its shift input.

The operation of the elements and blocks is carried out similarly to that described to the subject, again a string of six characters (numbers) will be presented.

If the reproduced response of the subject is not identical to the displayed line, then the output of the element AND 16 of block 3 will not have a pulse, a zero potential is applied to one input of the element And 17. The pulse from the first output of the element 18 goes to the information input of the element 19, the control input of which is supplied with zero potential from the output of the I 16 element. The pulse from the output of the element 19 (the second output of block 3) goes to the second input of block 7 - the counting input of the counter 43, fixing the wrong answer.

If the subject reproduces the fifth answer correctly, then at the output of element 44 of block 7 there is a unit potential that is applied to one input of element And 50. In the absence of correct answers or their small number compared to the correct one, the other input of element 50 will be applied zero. potential. The next correct answer will translate a single potential from the fifth output of counter 42 to the sixth output.

The tenth correct answer will cause the last output of the overflow pulse counter 42 to arrive at the input of element 46 and the first input of block 5 - R-input of trigger 32, confirming zero potential at its output, and through element OR 34 and delay element 35 will translate unit in the reversible counter 30 one bit to the right (from the sixth to the seventh exit), i.e. will increase the number of numbers presented in the line by one

in the next cycle and removes a single potential from the control input of the element 11 of block 1.

At the same time, a delayed pulse from the second output of element 18 of block 3 (the delay time of which is equal to the time of movement of the unit by one bit in the reversing register 30 of block 5) goes through the element NOT 20, to the inputs Reset registers 12, 21, and 39 and the cancel input of counter 22.

The delayed pulse from the output of the element 46 of block 7, pass elements

, OR 48 and 49, will go to the inputs of zeroing counters 42 and 43, setting to the initial state.

If the correct answers are absent or the number of incorrect answers predominates over the correct ones, then the tenth wrong answer will cause the output of the overflow pulse at the output of the counter 43, which will go to the input of the delay element 47 and

5, the second input of the block 5 - S-input of the trigger 32, transferring its unit state and ensuring that the unit in the reversing register 30 is transferred one digit to the left (from the sixth to the fifth you), i.e. will reduce the number of numbers presented in a row by one in the next cycle.

The appearance of the same number of correct and incorrect answers indicates that the subject has reached

volume of perception (volume of short-term memory). In this case, at the appearance at the fifth output, for example, the counter 42 of a single potential at the next identification, the single potential at the fifth output of the counter 43, i.e. unit potentials are applied to both inputs of the AND 50 element. The second potential received by the second will cause a single pulse at the output of the element 50, which will go to the second input of the generator 10 and turn off the last one, i.e. tests are terminated. At the same time single potential

0 from the output of the element I 50 is fed to the input of the remote control 8, illuminating the banner 55 End, and to the third input of the unit 5, illuminating the indicator 38, the number beside which indicates the volume of the short 5 time memory of the subject.

Using the invention extends the functionality of the device, allows you to quantify

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volume of short-term memory (perception volume) by detecting after presenting the line for a certain time (2s) the number of images (digit characters) simultaneously held in consciousness, taking into account their position and meaning. The displayed line, depending on whether the correct or incorrect answers prevail during reproduction, automatically increases or decreases, the achievement of such an application, when the probability of identification is equal to the probability of unrecognition, i.e. the number of correct and incorrect answers becomes 50% each, which indicates that the subject has attained a short-term memory. Automatic determination of the achievement of 50% of correct, (incorrect) answers leads to an increase in the reliability of the estimated amount of perception and a reduction in the time of testing.

Claims (4)

1. A device for professional selection, comprising an operator panel, a time setting unit, a control unit, a standard setting unit, an information presentation unit, a registration unit and a generator unit, the first output of which is connected to the information input of the information presentation unit, the control input of which is connected with the second output of the generator unit, characterized in that, in order to expand the didactic capabilities of the device, a comparison unit is introduced into it, the inputs of which are connected to the outputs of the first group of the unit information, the outputs of the second group of which are connected to the corresponding inputs of the group of the task setting unit, the output of which is connected to the input of the time setting block and its input to the prohibition of the generator unit, the start input of which is connected to the first output of the operator console, the output of which is connected to the inputs of the first group of the block control, the first, second and third outputs of which are connected to the first, second and third inputs, respectively, of the comparison unit, the first and second outputs of which are connected to the first and second information the ion inputs of the registration unit, the first output of which is connected to the R- ten 15 20 57164110 The BLOCK of the pattern setting unit, the S- input of which is connected to the second output of the registration unit, the third output of which is connected to the information inputs of the standard setting block and the operator’s console and the stop input of the generator unit, the third output of which is connected to the synchronization input of the control unit whose reset input is connected with the third output of the comparator unit and the reset input of the training information presentation unit, the information input of which is connected to the output of the time task unit, the outputs of the group of the task standard unit s troupe to inputs of the control unit, which mode input is connected to the second output of the operator console. 2. The device according to claim 1, characterized in that the control unit contains a shift register, a counter, elements AND groups, a one-oscillator, a pulse shaper, an element AND, an element OR, and two delay elements, and the input of the first delay element is connected to the input of the shift register mode and is the input of the block mode, the first group of inputs of which are information inputs of the shift register whose output is the first output of the block and the clock input is connected to the output of the AND element and is the second output of the block which is the synchronization input of the one-vibrator connected to the first input of the element I, the second input of which is connected to the output of the single-vibrator and to the counter input of the counter, the zero input of which is connected to the zero input of the shift register and the reset input of the block, the counter outputs are connected to the first inputs of a group of And elements, the second inputs of which are the second group of inputs of the block, and the outputs are connected to the inputs of the OR element, the output of which is connected to the input of the second delay element, the output of which Single with the pulse driver input, output ;, which is the third output of the block, the output of the first delay element is connected to the write input of the shift register and the one-shot start input. 3 A device according to claim 1, characterized in that the unit for setting standards contains a reverse register, a group of elements AND, RS-trig thirty 35 40 45 50 55 rep, two OR elements, a delay element, two switching elements, a group of indicators whose inputs are combined and are the information inputs of the block, and the outputs are connected to the first inputs of the AND elements of the group and to the outputs of the reversing register, and the first and second switching elements are combined and connected to the single potential bus, the output of the first switching element is connected to the first input of the first element OR and to the D input of the reversing register, whose C input is connected to the output of the connecting element holders whose input is connected to the output of the first OR element, the second input of which is connected to the output of the second switching element, and the third and fourth inputs are connected to the R-and S-inputs of the PS-flip-flop. Accordingly, they are the R- and S-inputs of the block whose output is 0 the output of the second element OR, the inputs of which are connected to the outputs of the group of elements And, the second inputs of which are a group of block inputs. i 4. The device according to claim 1, characterized in that the information supplying unit contains a shift register, code converters and an indication unit whose information inputs are connected to the outputs of code converters whose inputs are connected to the corresponding outputs of the first shift register group and are the first group the outputs of the block, the second group of outputs of which is the second group of outputs of the shift register, the information input of which is the information input of the block, the control input of which is cycles This is a shift register input whose zero input is a block reset input. Fig.Z Editor E. Kopcha Compiled by G. Levin Tehred M. Hodaiich Proofreader S. Shevkun