SU1479952A1 - Operator testing machine - Google Patents

Abstract

The invention relates to automation, in particular, to devices for the professional selection of operators in the ACS. The purpose of the invention is to improve the accuracy of the device with an increase in the quality of selection of ACS operators by determining the duration of the visual sensory memory. The device contains a generator of 1 / pseudo-random pulse sequence /, block 2 of presentation of training information, switch 3, block 4 of forming sound signals, block 5 of comparison, operator’s panel 6, block of recording 7, timer 8 and delay element 9. The introduction of element 9, blocks 4 and 5, as well as the execution of switch 3, blocks 2.4 and timer 8 in a certain way, provide information for a certain time in the form of a three-line table of 12 consonant letters arranged in random order. In this case, the signal for reproducing the corresponding line is the high, low and medium sound tones transmitted through the electroacoustic transducer. 4 hp f-ly, 9 ill.

Description

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The invention relates to automation and computing, in particular, to devices for the professional selection of automated control systems (ACS) operators.

The aim of the invention is to improve the accuracy of the device by improving the quality of selection of ACS operators by presenting the person under test for a certain time and polling for reproduction before, during and after the image is perceived, i.e. determination of the duration of the visual sensory memory.

Figure 1 shows the structure of the device; figure 2 is a functional diagram of the timer; Fig. 3 is a block diagram of the formation of sound signals; 4 is a diagram of a block of presentation of educational information; FIG. 3 is a diagram of a switch; figure 6 - diagram of the operator; figure 7 - diagram of the registration unit; Fig. 8 is a block diagram of the comparison; Fig. 9 is a timing diagram explaining the operation of the device.

The device for evaluating operators comprises a generator 1 (pseudo-random sequence (PRS), unit 2 for presenting training information, switch 3, unit 4 for generating audio signals, unit 5 for comparing operator console 6, unit 7 for recording, timer 8 and element 9 for delay.

Block 4 contains a counter 10, a dispenser 11 pulses, delay elements 12, elements 13, generator 14, element 15, keys 16, one-oscillator 17, sound generators 18 high, medium and low, first, second and third elements OR 19-21 and electroacoustic transducer 22.

Block 2 contains the shift registers 23, the counters 24, the elements 25 of the ban and the element OR 26.

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

Switch 3 contains a short pulse shaper 30, prohibition elements 31, elements OR 32, first 33, second 34 and third 35 groups of elements AND, first 36, second 37 and third 38 groups of triggers and group of elements OR 39.

The operator’s panel 6 includes the indicators 40 (first, second and third lines respectively), keyboard 41 (with consonant letters on the keys), trigger 42, element OR 43, elements 44, buttons 45 of tone (high, medium, low) and start button 46.

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

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

In accordance with the instruction, for 50 ms the subject is presented with information - a table of three lines with four consonants in each line, which he memorizes, and reproduces only one of

5 lines after distinguishing the corresponding tone of the audio signal. In this case, a sound signal is presented 50 ms before the indicators (information board) are displayed, simultaneously with them and after 150, 300, 500 to 1000 ms after them.

The device works as follows.

Turn on the power. When ready, the subject presses the Start button 46 on the remote control 6. An impulse from its output (Fig. 9a) sets the trigger 42 to the zero position (Fig. 9b), enters the input of the one-shot 27 tiQ measure 8, launching the latter (Fig.9b), the OR elements 32 of the switch 3 is fed to the input of the flip-flops 36, 37, 38, setting them to the zero position, being fed to the input of the delay element 9, to the input of the 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 recording of the corresponding number of pulses from the generator 14 in the distribution Tel and 11. On one of the outputs of the distributor 11, for example the second (fig.9g2) of the unit is the potential that is applied to the control input of switch 16.

5 The delayed pulse from the output of the element 9 is fed to the input of the generator 1, ensuring its inclusion (fig.9d) and the supply of a pseudo-random sequence.

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pulses from the outputs to the inputs of the registers 23 (fig.9e), and from the output of the generator 1 - through the elements 25 to the inputs of the registers 23 (fig.Ezh). A pseudo-random sequence of pulses from the output of the first bit of register 23 is fed to the counting input of the corresponding counter 24. Since the four-bit generator 1 has outputs X, then the inputs of registers 23 receive combinations of ones and zeros in accordance with the symbols in Fig. 9e - 1, 2, 3.

When the first register 23 of the unit arrives at the input (the ninth clock pulse per shift input), an overflow pulse appears at the output of the first counter 24, which arrives at the control input of the first element 25, stopping the flow of clock pulses to the input of register 23, and to the input element and 26.

Four units are written in a similar way to other registers 23. When units appear at the outputs of all counters 24, a unit potential appears at the output of the AND element 26 (FIG. 9h), which is fed to the input of the generator 1, turning off the latter, and the control inputs elements And 33, 34 and 35 of the switch 3.

Recorded in the registers 23 block 4 units through the elements 33, 34 and 35 are fed to the inputs of the corresponding triggers 36, 37 and 38, ensure the supply of unit potentials from their outputs to the corresponding indicators 40 of the console 6.

When the output element 28 of the timer 8 delayed pulse with a duration of 50 ms (figv) last arrives at the input of the counter 10 of block 4, ensuring the appearance at its first input (output of the first discharge) of a single potential, which through the element OR 19 starts one vibrator 17 (Fig. 19i). At the same time, the unit potential from the output of the first discharge of the counter 10 is supplied to the control input of the key 47 of the unit 7.

The pulse from the output of the one-shot 17, filed on the information inputs of the keys 16, passes through the second key 16, because its control potential is given a single potential with you

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the course of the distributor 11, to the input of the second generator 18, by running the latter.

The mid-tone sound frequency from the output of the generator 18 is fed through element 20 to element 13, to another input of which the unit potential is fed from the input of the first discharge of counter 10, and element 21, to the input of the electroacoustic converter 22, which emits a short tone of the middle frequency (Fig. 9k), ordering the subject to reproduce on the keyboard 41 the letters of the second line.

A delayed pulse with a duration of 50 ms (unit potential) from the output of the element 29 of timer 8 is fed to the inputs of the indicators 40 of the console 6, providing for 50 ms (FIG. 9L) those indicator cells to which the unit potentials from the outputs of the flip-flops 36, 37 and 38. The falling edge of the delayed pulse applied to the input of the imaging unit 30 causes a short pulse to appear at its output, which appears through the information inputs of the first and third elements 31, since zero control potentials are applied to their control inputs In its allocator bits 11, the first and third elements, OR 32, returns the t / iggers 36 and 38 (first and third rows) to the zero state. To the inputs of block 5, the unit potentials (signals) of the second line only (from the flip-flops 37 of the switch 3) are received.

According to the sound signal (middle frequency tone), the subject presses the second button 45. The pulse from its output through the second element AND 44, to another input of which the unit potential from the output of the distributor 11 is fed, and the element OR 43 flips trigger 42 (Fig.96), ensuring supplying a single potential to the keys of the keyboard 41. Then the operator reproduces the memorized characters of the second line by pressing the corresponding keys of the keyboard 41. If the subject correctly reproduced the sign (pressed the keys corresponding to the ones highlighted on the second indicator 40), then -boundary potential from the output 41 of the keyboard keys arrive at the inputs 5 - the information input elements

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50, the control input of which is fed zero potential from the output of the element NOT 52, the input connected through the element OR 39 to the output of the trigger 37 of the switch 3. The pulse from the output of the element 50 through the element OR 53 of the block 5 and the information input of the first key 47 of the block 7, because A single potential is applied to the equalization input from the first output of the counter 10 of the block 4, enters the first counter 48, fixing the correct answer for the given (50 ms before luminescence) sound presentation.

If the response from the keyboard output 41 is incorrect, the information input of element 51 is sent to the control input, zero potential from the trigger output 37 is fed, passes from the output of element 51 through the OR 54 element to the input of block 7, registering the wrong answer in counter 49.

If the tone (line) is recognized incorrectly, the answer is not fixed.

After answering (reproducing the characters of the line), the subject presses the Start button 46 again, thereby changing the time for the sound signal (response time) and. receiving in random order an instruction to play the next line.

At the output of the distributor 11, for example, the output of the third discharge, a single potential appears, giving the third row a low tone signal, and a delayed pulse from the output of element 28 provides the output of the second discharge of the counter 10 of the unit potential, which through element 12 (the delay time is 50 ms) and the OR element 19 is fed to the input of the one-oscillator 17, providing a sound signal simultaneously with the start of the presentation of information (the display of the indicators 40).

The work of the remaining blocks and elements of the device is similar (as with the first pressing of the button 46). Subsequent presses of button 46 - the third - sixth of this cycle (the cycle includes 6 presses of button 46), the delay of a single potential (pulse) is provided by elements of the 12th group and is 150, 300, 500 and 1000 ms, respectively.

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At the end of the test (the number of cycles is set by the supervisor) readings are taken from counters 48, in which the correct answers are recorded depending on the time of the sound signal, and from counter 49, which takes into account incorrect answers. According to the results of meter readings, the duration of the operator’s visual sensory memory is judged. The use of the invention in devices for the professional selection of operators improves the quality

5 selection by detecting the image perception skill by presenting information for 50 ms in the form of a table of 12 consonant letters arranged in a random order in three lines, while for subsequent reproduction of one of the lines the sound signal of the corresponding tone is sent to a different time: 50 ms before the information is presented,

5 simultaneously with it and after 150, 300, 500 and 1000 ms after it. Since the subjects coped with this task approximately equally in each row, the number of letters about which they currently have information is three times greater than the proportion that the operator correctly reproduces in the row (line) indicated by the tone . This makes it possible to determine the duration of the sensor.

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memory, which is judged on the possibility of using operators to work with complex automated control systems.

Claims (5)

1. A device for evaluating operators, containing an educational information management block, whose information inputs are connected to the corresponding generator outputs, and information outputs to the corresponding inputs of the switch, the outputs of the first group of which are connected to the corresponding inputs of the first group of the operator’s console, the synchronous input of which is connected to The first timer output, and the registration unit, characterized in that, in order to improve the accuracy of the device, an audio signal generation unit, a delay element and a b approx comparison, inputs of the first and second the groups of which are connected respectively to the information outputs of the operator’s console and the outputs of the second switchboard group, and the first and second outputs to the corresponding inputs of the registration unit, the inputs of the group of which are connected to the corresponding outputs of the first group of the sound signal generation unit, the outputs of the second group of which are connected to the corresponding control the inputs of the switch group and the corresponding inputs of the second group of the operator’s console, and the first and second inputs, respectively, to the second output, timer and sync the operator’s control panel connected to the first syncs of the educational information management block and switch, the timer input and the input of the delay element whose output is connected to the generator start input, the clock output and stop input of which are connected respectively to the second synchronous input and educational information control block , the second synchronization input of the switch is connected to the first output of the timer, and the control input is connected to the corresponding output of the educational information control unit. 2. The device according to claim 1, characterized in that in it the sound signal generation unit comprises a counter, the input of which is the first input of the block, and the output and outputs of the group are outputs of the first group of the block and are connected respectively to the first input of the first element I and inputs delay elements whose outputs are connected to the first inputs of the corresponding AND elements of the group and the corresponding inputs of the group of the first OR element, whose input is connected to the output of the counter, and the output to the single-input input, the second OR element, whose output is The dinene with the second inputs of the first element I and the elements of the group I, and the inputs with the outputs of the corresponding group generators, the inputs of which are connected to the outputs of the corresponding keys, the first inputs of which are connected to the output of the one-oscillator, and the second inputs with the corresponding outputs of the pulse distributor, the corresponding outputs of the second group of the block, the second element I, whose output is connected to the input of the pulse distributor, the first input to the output of the generator, and the second input is the second input of the block, the outputs of the first element AND and elements AND groups are connected to the corresponding inputs of the element OR, the output of which is connected to the input of the electroacoustic converter. 3. The device according to claim 1, about tl and - the fact that in it the switch contains a short pulse shaper, the output of which is the second synchronization input of the switch, and the output is connected to the information inputs of the inhibit elements, the control inputs of which are the corresponding control inputs of the switch group, and the outputs are connected to the first inputs of the corresponding OR elements of the first group, the second inputs of which are the first synchronization input of the switch, and the outputs connected to the R-inputs of the flip-flops of the corresponding group, the S-inputs of which are connected to the outputs of the corresponding AND elements, the first inputs of which are the control input 0 switch, the second inputs - the corresponding information inputs of the switch, the outputs of the flip-flops are the corresponding outputs of the first group of the switch and connected to the inputs of the corresponding elements OR of the second group, the outputs of which are the corresponding outputs of the second group of the switch. 4. The device according to claim 1, in which the block for presenting educational information contains registers and counters, the installation inputs of which are the first synchronized input of the block, the information inputs and outputs of the registers are the corresponding information inputs and outputs of the block, the first inputs are connected to the information inputs of the respective counters, 0 and the clock inputs are with the outputs of the corresponding protection elements, the information inputs of which are the second synchronized input of the block, and the control inputs are connected to the outputs 5 corresponding counters connected to the corresponding inputs of an AND element, the output of which is the control output of the block. 5. The device according to claim 1, wherein the timer contains a one-shot, the input of which is the input of the timer, and the output is connected to the input of the first delay element, the output of which is the second output of the timer and connected to the input of the second delay element the output of which is the first output of the timer. Fie.g fig.Z rgpf g “bj fie.7 (pus.8