SU1751804A1 - Device for checking professional fitness of operators - 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 determining the rate at which the task is carried out when the perception volume is reached. The device contains a generator unit 1, a symbol time latching unit, a comparison unit, a pulse distributor (control), a task setting unit, an information presentation unit, an equal response determining unit, an operator console and a recorder. The invention makes it possible to determine the time taken to memorize numbers when the amount of perception (short term memory) is reached, and the number of numbers (characters) presented at the same time, 9 ill.

Description

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.

A device for assessing the professional suitability of operators is known, comprising a test information presentation unit, a unit for setting the number of characters, a time setting unit, a tag extraction unit, an AND unit, a control unit, a registration unit, and an operator console. This device objectively assesses the possibility of using the operator of man-machine systems, but does not allow to determine the psychomotor activity of the subject.

Closest to the invention is a device for professional selection, comprising a generator unit, a unit

time settings, comparison unit, control unit, task setting unit, information presentation unit, equal response selection unit, operator console, group output and the second output of which are connected to the second group input and first control unit input, and the first output to the second the input of the generator unit, the third output of which is connected to the second input of the control unit, and the first and second outputs to the second and third inputs of the information presentation unit, respectively, the first input of which is connected to the output of the time setting unit , the first output of the group is with the input of the group of the task setting unit, and the second output of the group is with the input of the group of the comparison unit, the first - the third inputs of which are connected to the corresponding outputs of the control unit, the third output - to the fourth exit of the information presentation unit and to the third input block

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control, and the first and second outputs to the corresponding inputs of the equal response selection block, the third output of which is connected to the input of the operator’s console and the third inputs of the standard setting block and the generator block, and the first and second outputs to the corresponding inputs of the standard setting block, output which is connected to the input of the time setting unit and to the first input of the generator unit, and the output of the group to the first input of the group of the control unit.

However, this device does not allow to determine the pace of the assignment (the average time of memorizing the characters-figures) when the subject reaches a short-term memory, which limits its didactic possibilities.

The purpose of the invention is to expand the didactic capabilities of the device by determining the pace of the task (average time for memorizing character-numbers) when the subject reaches a short-term memory.

The goal is achieved by the fact that in the device for professional selection of operators, containing a unit for setting standards, the information outputs of which are connected to the corresponding information inputs of the first group of pulse distributor, the clock input is with the synchronizing output of the equal response generator that controls the input of the operator console and the input stopping of the generator block, information inputs - with the corresponding outputs of the first group of the information presentation block, synchronizing output - with the first and second control inputs, respectively, with the first and second information outputs of the uniform response block, the first and second information inputs of which are connected to the first and second outputs of the comparison unit, the third output of which is connected to the installation inputs of the information presentation unit and the pulse distributor, the information, control and synchronization inputs - respectively to the first, second and third outputs of the impedance distributor sov, and data inputs of the group - to the corresponding outputs of the second group unit pred occurrence information, the first and second outputs of the generators are connected to the information unit and the control unit inputs respectively pred detection information, the third output - to a clock input of the pulse distributor and the entrance

start - with the control output of the operator's console, the information outputs of which are connected to the corresponding information inputs of the second group of the pulse distributor, and the synchronization output - to the information input of the pulse distributor, according to the invention, a trigger is inserted, the single and zero inputs of which are connected to the synchronization outputs

respectively, the task setting unit and the operator’s console, and the output with the synchronization input of the information presentation unit, a timer, the setup input of which is connected to the control output of the console

operator, and the launch input - to the trigger output, and the recorder, the information input of which is connected to the fourth output of the distributor pulse.

Figure 1 shows the structural diagram of the device; figure 2 is a functional diagram of the generator unit; in FIG. 3, the same unit of comparison; figure 4 - the same, the pulse distributor; Fig. 5 is the same, the unit for setting standards; fig b - the same block

presentation of information; Figure 7, too, a block for determining equally-sized answers; on Fig - the same, the operator’s console; Fig. 9 is the same as the time lag block for presenting symbols.

The device for professional selection contains a generator block 1, a block 2 for fixing the time for presenting characters (digits), a block 3 for comparison, a distributor for 4 pulses (control), a block 5 for setting standards (the number of characters per line), a block for presenting information (lines c numbers arranged in a random sequence), block 7 for determining equally-sized answers, operator’s console 8

and recorder 9 (symbol presentations) with circuit connections described above and in the formula.

Block 1 contains (2) the generator 10 clock pulses, the element 11 of the ban and

generator 12 pseudo-random sequence (PSP) pulses.

Block 3 includes (fig. 3) the first and second groups of elements AND 13 and 14, the group of elements EXCLUSIVE OR NOT 15, the first

and the second elements are And 16 and 17, the element 18 delay (with two outputs), the element 19 of the ban and the shift register 20.

The distributor 4 contains (FIG. 4) a shift register 21, a pulse counter 22, an AND 23 group of elements, a single vibrator 24, a short pulse shaper 25, an AND 26 element, an OR 27 element, and a delay element 28 and 29.

Block 5 includes (FIG. 5) rej44CTp reversing 30, the group of elements And 31, trigger 32,

the elements OR 33 and 34, the delay element 35, the Unit input button 36, the button 37 for initial setting of the number of characters (digits), the signal indicator light bulb 38.

Unit 6 contains (fig.b) shift register 39, the Converter 40 code code code (GAC) and the node 41 of the display (digital line).

Block 7 includes (Fig.7) the counter 42 of the correct answers, the counter 43 of the wrong answers, the first and second switches 44 and 45, the first and second elements 46 and 47 of the delay, the first and second elements OR 48 and 49 and the element 50.

The remote control 8 contains (Fig. 8) a keyboard 51 with keys of numbers 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.

Block 2 has (Fig.9) timer 56 and trigger 57.

The device works as follows.

Pre-switches 44 and 45 are set, for example, in the fifth position with a capacity of counters 42 and 43 equal to ten, ensuring the likelihood of recognition. (Unidentified) B, 5. In this case, the number of characters (digits) in a line will provide 50% error-free reproduction corresponding to the volume of perception (volume of short-term memory).

Turn on the power. Registers 20, 21, 30 and 39, counters 9, 22, 42 and 43, trigger 32 in the first (output O) position are set to the initial state.

In reversing register 30, pressing button 36 introduces 1, and then pressing button 37 advances it to register 30, setting it to the position corresponding to the number of characters in the line, initially presented to the subject, for example, six.

Press the Start key of the keyboard, set timer 56 to the initial position and start generator 10. Clock pulses from the generator output 10 through element 11, to the control input of which zero potential is supplied from the output of the element OR 33, are fed to the input of generator 12, ensuring the appearance of its output is a pseudo-random sequence of pulses fed to the information input of the register 39, which is recorded in the last current pulses supplied to the shift input from the output of the generator 10.

The clock pulses from the output of the generator 10 are received at one input element And 26 and the synchronization input of the one-shot 24, but

they do not go further because zero potentials are fed to their other inputs.

The recording in register 39 continues until the appearance at the sixth separate output 5 (between the groups) of the Units, which is applied to the second input of the AND 31z. A single potential from the output of the element AND 313, through the element OR 33, is applied to the control input of the element 11, stopping the supply of clock pulses from the output of the generator 10 to the input of the generator 12 and the shift input of the register 39.

Code combinations with each group of outputs of register 39 (the group includes four

15 outputs) are fed to the inputs of the respective converters 401 40b code-code code, which convert the input code 2421 into an output seven-segment code. Seven-segment code from the transducer outputs

0 40 is fed to the inputs of the respective indicators 41.

At the same time, the unit potential from the output of the element OR 33 is fed to the input of the trigger 57, transferring the latter to the single position. A single potential from the output of the flip-flop 57 is fed to the start-up input of the timer 56, which starts counting the time, and to the control inputs of the indicators 41, ensuring their flashing.

0 The subject visually fix the highlighted numbers on the indicators and their sequence in a row, and then reproduces the stored numbers in the same sequence using the numeric keys of the keyboard 51.

Let, for example, a sequence of numbers 374275 be highlighted in a line. The subject first presses the keyboard key 51 with the number 3. Impulse from the exit of the keys

0 with digit 3 is fed to the input of the element OR 54 and to the input of the encoder 524, ensuring the appearance at its output of a four-digit binary code corresponding to number 3 in code 2421 and identical to the code at the output of converter 40i. The code combination from the output of the encoder 524 through the elements OR 53 is applied to the information inputs of the register 21.

0 The pulse from the output of the element OR 54 is fed to the input of the trigger 57, having transferred the latter to the zero position, stopping the flashing of the string of digits on the indicator 41 and timing the timer 56, and to the first control input of the register 21, having transferred the latter to the parallel recording mode, and passing through the delay element 28, enters the second control input of the register 21, providing

parallel writing of a binary number from the outputs of the elements OR 53 (encoder 52p) to the register 21.

The pulse from the output of the element 28 also enters the input of the one-shot 24, causing the appearance at its output at the moment of arrival of the clock pulse to the synchronizing input of a single potential with a duration equal to 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 26T element to the shift input of the register 21 and the movement of information in the register 21 by four cycles, i.e. advancement to register 20, in which the code of this digit is written. At the same time, the pulse from the output of the one-shot 24 is recorded in the counter 22 and the recorder 9.

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 is similar to that described above,

After the reproduction of the sixth digit 5 at the sixth output of the counter 22, a pulse is applied to the second input of the element And 23z. Since a unit from the sixth output of the reversing register 30 is applied to the first input of the And 23z element, the pulse from the output of the And 23z element through the OR element 27 enters the input of the element 29, whose delay time is longer than the delay time of the element 29, enters the input of the imaging unit 25, a short the pulse from the output of which is fed to the second inputs of the And 13 and 14 elements, ensuring reading of information from the outputs of the registers 20 and 39 to the inputs of the elements EXCLUSIVE OR - NOT 15.

If the line (answer) reproduced by the test is identical to the presented line, then the output of element 16 is a pulse, which through element 17, to another input of which a pulse is output from the first output of element 18 (the delay time for the first output is equal to the sum of the response time of elements 13 (14), 15, 16), enters the counting input of the 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 of the element 18 will go to the inputs Reset registers 20, 21 and 39 and the zero input of the counter 22.

When a zero potential appears at the control input of the element 11 after the Reset of the register 39, the clock pulses from the generator 10 output to the generator input

12, providing a pseudo-random sequence from its output to the information input of register 39, which is recorded in the last clock pulses at its shift input.

0 The operation of elements and blocks occurs as described above, the subject will again be presented with a string of six characters (numbers).

If the test response of the test person is not identical to the presented string, then the output of the AND 16 element will not have a pulse, zero potential is applied to the same input of the AND 17 element. The impulse from the first output of element 18 will go to the information input of element 19, the control input of which is supplied with zero potential from the output of element 16. The impulse from the output of element 19 will go to the counting input of counter 43, registering a wrong answer.

If the subject reproduces the fifth answer correctly, then at the output of switch 44 there is a unit potential that is applied to one input.

0 of element 50. In the absence of incorrect answers or their small number in comparison with the correct ones, zero potential will be applied to another input of element 50. 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 42 to arrive at

0 to the input of the element 46 and the input of the trigger 32, confirming the zero potential at its output, and through the element OR 34 and the delay element 35 will translate the Unit in the reversing counter 30 by one bit to the right (with

5 of the sixth to the seventh output), t, e, will increase the number of digits in the row by one in the next cycle and remove the potential from the control input of the element 11.

0 Simultaneously, a delayed pulse from the second output of element 18 (the delay time of which is equal to the time of movement of the Unit by one bit in the reversing register 30) will go to the inputs Reset of registers

5 20, 21 and 39 and the zero input of counter 22.

The delayed pulse from the output of element 46, having passed the elements OR 48 and 49, will go to the inputs of zeroing of the counters 42 and 43, setting the latter to the initial state.

If the correct answers are absent or the number of incorrect answers prevails over the correct ones, then the tenth incorrect answer will cause the output of the overflow pulse at the output of counter 43, which will go to the input of delay element 47 and to the trigger input 32, transferring it to a single state and ensuring translation of the Units in the reverse register 30 one digit to the left (from the sixth to the fifth exit), 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 reached a perceptual volume (volume of short-term memory). In this case, at the appearance at the fifth output, for example, the counter 42, a single potential at the next identification, the single potential at the fifth output of the counter 43, i.e. Single potentials are applied to both inputs of the AND 50 element. A single potential that arrives second will cause the appearance at the output of an AND 50 element of a single pulse that will go to the second input of the generator 10 and turn off the last, t, e. tests are terminated. At the same time, a single potential from the output of the element I 50 is fed to the input of the remote control 8, illuminating the transparency 55 End, and to the input of the unit 5, illuminating the alarm light 38, the number next to which indicates the amount of short-term memory of the subject. Timer 56 shows the time taken to memorize, and recorder 9 shows the number of responses (presentations of characters) during the test.

Using the invention in devices for psychophysiological research and evaluating the professional fitness of operators in quantifying the amount of short-term memory expands the didactic capabilities of the device, as it allows the psychomotor activity of the operator to be assessed by detecting the pace of the task — determining the time spent on memorizing the image and sequence characters (numbers), and the number of numbers presented to achieve the amount of perception.

Claims (1)

Invention Formula A device for the professional selection of operators, containing a task block the standards, whose information outputs are connected to the corresponding information inputs of the first group of the pulse distributor, the clock input is 5 with the clock output of the equal response response unit, the control input of the operator console and the stop input of the generator unit, the information inputs are with the corresponding outputs 0 of the first group of block presentation of information; sync output - with control input of the generator unit, and the first and second control inputs, respectively, with the first and second information outputs of the equal response block, the first and second information inputs of which are connected to the first and second outputs of the comparison unit, the third output 0 which is connected to the installation inputs of the information presentation block and the pulse distributor, information, control and synchronization inputs are connected respectively to the first, second and third outputs of the pulse distributor, and the information inputs of the group to the corresponding outputs of the second group of the information presentation block, the first and the second outputs of the generator unit 0 are connected to information and control inputs, respectively, of the information presentation unit, the third output is connected to the pulse input of the pulse distributor, and the start input is connected to the operator’s output control, the information outputs of which are connected to the corresponding information inputs of the second pulse distributor, and the synchronizing output - to the informational input of the pulse distributor, characterized in that, in order to expand the didactic capabilities of the device, a trigger is inserted in it, the unit and zero The inputs of which are connected to the synchronization outputs of the standards setting unit and the operator’s console, respectively, and the output is connected to the synchronization input of the information presentation unit, the timer whose setup input is connected to the control output 0 of the operator’s console, and the start-up input - to the trigger output, and the recorder, whose information input is connected to the fourth output of the pulse distributor, FIG. HL I FIG. four V 3 7 rtlF-3 5s " JAA2 FIG. 9 Fig.8 5 K " AA2