SU1651306A1 - Exerciser to determine professional skills of operators - Google Patents

Abstract

The invention relates to automation and computing and can be used for the professional selection of operators of various control systems. The purpose of the invention is to expand the didactic capabilities of the device by determining the operational threshold for the difference in the interval between signals. The device contains 1 clock pulse generator, program setting block 2, switching block 3, multiplexer 4, demultiplexer 5, response analysis block 6, control block 7, information display block 8, operator console 9 and indicator 10. The invention provides presentation to the subject ten different lengths of intervals with repetitions decreasing in duration from cycle to cycle. 9 il.

Description

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The invention relates to automation and computing and can be used for the professional selection of operators of various control systems.

The purpose of the invention is to expand the didactic capabilities of the device by defining an operational threshold for distinguishing the interval between signals, which makes it possible to make recommendations on the use of subjects as operators of appropriate control systems.

Figure 1 shows the structure of the device; Fig. 2 is a functional block diagram of the program setting; fig.Z - the same switching unit; 4 is the same, the block for determining the correct answers; fig. 3 - the same, control unit; 6 is the same as the information presentation unit; 7 - the same, the operator’s console; on Fig - the same indicator; Fig. 9 shows timing diagrams explaining the operation of the device.

The device for professional selection of operators contains 1 clock pulse generator (generates pulses of 1, 2, 4 and 8 ms duration), program setting block 2, switching block 3, multiplexer 4, demultiplexer 5, response analysis block 6 (determining the correct answers) , control unit 7, unit 8 for presentation of information, operator console 9 and indicator 10.

Block 2 contains a generator of 11 pseudo-random sequence of codes (five-bit), the first and second single-oscillators 12 and 13 (respectively, the duration of the pulses at the output 1 s and 3 s), the element NOT 14, the prohibition element 15, the element AND 16 and the element OR 17

Switching unit 3 includes a shift register 18 (distributor), the first and second triggers 19 and 20, and the first and second elements OR 21 and 22.

Block 6 contains a counter 23, the first and second groups of elements AND 244- 244 and 254- 254-, a group of counters 26-26, a driver 27 for a short (single) pulse, element 28 and ban element 29, delay element 30 and element 31 The control unit 7 includes a shift register 32, an input element And 33, a trigger 34, a first and second elements And 35 and 36, a HANDWARE 37.

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Unit 8 contains a sound (tone) frequency generator 38, a key 39, and headphones 40.

The operator’s panel 9 includes the buttons (single pulse shapers) 41 Start and 42 Yes, indicators 43 Check and 44 Stop.

Indicator 10 has LED indicators: the upper row with the numbers 2, 4, 8, and 16, and the lower row with the numbers 1, 2 ,, 3, and 4.

The device works as follows.

Power on. The trigger 34 is installed in a single position (at the first output - a single potential). The tone frequency signal (1000 Hz) from the output of the generator 38 is fed to the information input of the key 39 (Fig, 9a). Generator 1 is started, the clock pulses from the outputs of which are fed to the inputs of multiplexer 4.

Depending on the position of the flip-flops 1 9 and 20 of the block 3, which form the binary inputs 01, 00, 10 or 11 on the control inputs of the multiplexer 4 and the demultiplexer 5, the clock pulses of 8, 4, 2 or 1 respectively are transmitted ms Suppose that at the outputs of the flip-flops 19 and 20, after power is turned on, there are zero potentials (00). The multiplexer 4 transmits clock pulses with a duration of 4 ms from the second output of generator 1 to the information input of element 15. Since zero potential is supplied to the control input of element 15 from the output of element OR 17, the clock pulses (Fig. 96) go to the second (clock) the input of the register 32 and the input of the generator 11, ensuring the appearance at the output of the last pseudo-random sequence (Figure 9c). The pulses from the output of the generator 11 are fed to the first (informational) input of the register 32, advancing in it the clock pulses arriving at the second (shifting) input C and to the input of the element NOT 14.

The inverted pseudo-random sequence of pulses from the output of the NOT element 14 (Fig. 9d) is fed to the control input of the key 39, to one input of the AND element 16, to another input of which clock pulses are output from the output of the inhibit element 15 and to the inputs of the single vibrators 12 and 13.

A single pulse from the output of the element NOT 1A stops the signal from the tone frequency from the output of the generator 38 to the headphones 40 (FIG. 9a) for the duration of the pulse, triggers the one-shot 12, providing a pulse from its output with a duration of 1s (FIG. 9d) to the button 42 and fixes its duration by the number of clock pulses in the counter 23 (Fig. 9e)

The falling edge of a single impulse (negative impulse) from the output of the NOT element 14 triggers a one-shot 13 (FIG. 9G), providing a pulse from its output with a duration of 3C, through the OR element 17, to the control input of the inhibit element 15, which stops the clock pulses the input of the generator 11 (Fig.9b).

At the end of the pulse from the output of the single-oscillator 13, the delivery of clock pulses from the output of multiplexer 4 through element 15 is resumed, ensuring the appearance of the next single pulse of the inverted sequence (Fig. 9d).

Pulses (single) direct sequences (Fig. 9c) cause the output of a register of 32 unit A035.potentials that are applied to the inputs of AND 38. Upon receipt of a single pulse I IJJ1 of five units (I fig. 3), single potentials are applied to all the inputs of the AND 33 element, providing a single pulse at its output, which is fed to one input of the AND 35 and 36 elements. Since the other potential of the I 35 element is supplied with a single potential from the output of the trigger 34 , then pulse from its output goes to the input of the indicator 43, lighted tran35

40

Clock pulses (Fig. 9b) of 8 ms duration (combination 01 on the control inputs of multiplexer 4) from the output of multiplexer 4 arrive at the input of generator 11, ensuring that its output is fed to a pseudo-pulse sequence of pulses that is fed to the information input of the register 32. The inverse sequence from the output of the element NOT 14, whose pulses have a duration of 16, 32, 48, 64 ms, is fed to the inputs of the one-oscillator 12 and 13, to one input of the element 16, to the other input which enters

Sparant Check (Fig.9i), and after 45 clock pulses from the output of the element

the element OR 47 is fed to the control input of the element 15, stopping the supply of clock pulses (Fig.96) to the input of the generator 11.

The unit potential from the output of the element And 35 also enters the information input of the register 18 and through the element OR 21 to the clock input of the register 18, ensuring the appearance at its first output of a single potential that sets the trigger 19 to zero and the trigger 20 to the single position. The control combination 01 is a zero and a single potential 15, and a control input of the key 39.

The pulse from the generator output 11 (fig.9g), duration 111 - three units (24 ms), received at the control key input 39, will stop the tone signal from the generator 38 output to the headphone backgrounds 40 (figure 9a ). At the same time, the pulse from the output of the element HE 14 is filled with a single vibrator 12, the pulse from which 1c duration is fed to the first input of the console 9 (the input of button 42), and applied to the input of the element I 16 provides passage

Alov from the outputs of the flip-flops 19 and 20 is attached to the corresponding control inputs of the multiplexer 4 and demultiplexer 5, providing the output of the multiplexer 4 clock pulses from the fourth output of the generator 1 of the maximum period (16 hrs) and preparing the circuit for

the indicator is turned on in block 10 at the fourth output of the demultiplexer 5 (with figure 16).

Flashing the indicator 43 The check alerts you when the device is ready.

5 When the test subject is ready, the latter presses the Start button 41. The impulse from its output (Fig. 9k), through the OR element 31, goes to the zeroing input of the counter 23, transferring it to the initial

0 position, to the input of the installation of the register 32, returning it to the initial state, to the input of the trigger 34, preparing the circuit for the passage of pulses from the output of the element And 33, through the element 36,

5 to the counting input of the counter 37 (with pre-installation) „

Indicator 43 Verification goes out, zero potential is supplied to the control input of the element 15 from the output of the element

And 35.

Clock pulses (Fig. 9b) with a duration of 8 ms (at the control inputs of multiplexer 4, combination 01) from the output of multiplexer 4 arrive at the input of the generator 11, ensuring the appearance at its output of a pseudosporain. a sequence of pulses that is fed to the information input of register 32. The inverse sequence from the output of the element is HE 14, the pulses are cat. The second ones have a duration of 16, 32, 48, and 64 ms, are fed to the inputs of the one-vibrator 12 and 13, to one input of an AND 16 element, to the other input of which

clock pulses from the output element

15 and to the control input of the key 39.

The impulse from the generator output 11 (fig.9g), the duration 111 - three units (24 ms), which arrived at the control input of the key 39, will stop the signal of the tone frequency from the output of the generator 38 to the headphones 40 (fig.9a). At the same time, a pulse from the output of the element HE 14 is detonated by a one-shot 12, a pulse from the output of which is 1 s long, is fed to the first input of the console 9 (the input of button 42), and applied to the input of the element 16, provides 8

through it, the clock pulses from the output of the element 15 to the counting input of the counter 23. At the third output of the counter 23 there appears a unit potential.

The subject, having distinguished the interval in the presented tone signal, presses the button 42 There is. If the reaction time of the subject was no more than s, then the output of button 42 is an impulse that arrives at one input of elements AND 24. Since at the other input of one of the elements 24 (third) there is a single potential from the output of counter 23, then the pulse from the output of the third element And 24 enters the third counter 26, fixing the correct answer to the time interval of 48 ms (second gradation). The regulated counting cycle of the first counter 26 is set to 20, the second counter 26 10, and the third and fourth counters 26 5.

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If the subject in two gradations, the first and the second, the correct answers for which are recorded by the counters 26 4. and 26, respectively, distinguished all the intervals, then the single potentials from the outputs of the counters 26 and 26 are applied

four

JQs to the first inputs of the And 25 25z elements, respectively, will ensure the passage of a pulse from the output of the counter 37 to the inputs of the And 28 element, and from the output of the And 25z element to the control input

15 of the element 29, by pre-dodging the exposure of the indicator 44, the pulse from the output of the element AND 28 is fed to the input of the element 30 and the input of the element OR 21.

Pulse from the output of the element OR 21

2Q enters the shift input of register 18, ensuring the movement of the unit to the second output. A single potential from the second output of register 18 is fed to the input of trigger 19, ensuring that if the subject but distinguished the gap at the output of the zero potential in the tone frequency signal, he does not take any action, therefore, the specified time interval is considered indistinguishable this test subject.

The trailing edge of the inverse pulse triggers a one-shot 13, providing a three-second delay before the next interval is presented.

After the presentation of five pseudo-random sequences of the first cycle (time intervals of different durations 1–4 gradations), the output of the counter 37 appears a pulse (FIG. 9l), which goes to the AND 25 element.

If the subject distinguished all time intervals by the first gradation of the duration (maximum 64 ms), the unit potential is 26 at the output of the counter 26, and not all by the second gradation (with the time interval 48 ms), the output potential of the counter 26 is zero Then the zero potential from the output of the element And 25j, applied to the control input of the prohibition element 29, ensures the passage of a pulse from the output of the counter 37 to the input of the indicator 44 Stop, notifying the subject of the test termination. The impulse from the output of counter 37, fed to the control input of multiplexer 5, is high (in element 10, the element with digital

eight

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to the first inputs of the And 25 25z elements, respectively, will ensure the passage of a pulse from the output of the counter 37 to the inputs of the And 28 element, and from the output of the And 25z element to the control input

element 29, predotvrativ exposure of the indicator 44, the pulse from the output element And 28 is fed to the input element 30 and the input element OR 21.

Pulse from the output of the element OR 21

enters the shift input of register 18, ensuring the movement of the unit to the second output. The unit potential from the second output of the register 18 is fed to the input of the trigger 19, ensuring 0

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0

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Zero potentials are applied to the control inputs of multiplexer 4, which provide a 4 ms clock pulse at its output, which is fed to the input of rator 11, forming at its output a sequence of pulses of 8, 16, 24 and 32 ms duration.

The control pulses from the output of block 3, fed to the corresponding control inputs of the demultiplexer 5, prepare the circuits for displaying in the indicator 10 an element with the number 8.

The delayed pulse from the output of the element 30 increases the counter 26 and the counter 37 to its initial state.

The subject is presented with time intervals twice as long as the previous ones.

If the subjects in three or four gradations of the cycle distinguished all intervals, then the operation of the device blocks occurs as described above with the difference of two gradations in the cycle, i.e. the subject in the next cycle will be given impulses (time intervals) with a halved duration.

When the indicator 44 lights up, the LEDs in the indicator 10 are illuminated.

The operational threshold of the difference in the time interval is determined by multiplying the number of the light of the indicator

the upper row to the number of luminous elements of the lower row in the indicator 10.

The use of the invention in devices for professional selection of operators allows the definition of an operational threshold for distinguishing an interval, which expands the didactic capabilities of the device.

In the proposed device, when going from cycle to cycle, gradations of t (time intervals) are presented with overlap (repeat half the gradations in the next cycle), and the change in the duration of time intervals in gradations decreases as the operational threshold approaches. . Determining the operational threshold for distinguishing the interval makes it possible to make recommendations on the use of operators in the corresponding control systems with high reliability, since it determines not the limit of the absolute threshold for the difference in the interval, but the minimum interval, the excess of which does not improve its perception indicators.

Claims (1)

Invention Formula A device for professional selection of operators containing a response analysis block, the first to fourth inputs of which are connected respectively to the first and second outputs of the program setting block and the first and second outputs of the operator console, pulse distributor, the first and second inputs of which are connected to the third and fourth outputs of the block task- these programs, respectively, a clock pulse generator, an information output block and a switching unit, the information input of which is connected to the first output of the response analysis block, characterized in that, in order to expand the actual capabilities of the device, a multiplexer is inserted into it, informational inputs of which are connected to the corresponding outputs of the clock generator, the first and second control inputs to the corresponding outputs of the switching unit, and the output to the clock input of the program setting block, n n Its output is connected to the input of the information presentation unit, and the control input is connected to the first output of the pulse distributor, the first input of the operator’s console and the control input of the switching unit, the indicator whose inputs of the first group are connected to the corresponding outputs of the response analysis group, and - a multiplexer, the outputs of which are connected to the corresponding inputs of the second group of the indicator, the first and second control inputs to the corresponding (outputs of the switching unit, and the information input to the second input of the console eratora and second output response analysis unit, the third output, and a fifth input of which are respectively connected to the third input and the second output pulse distributor, the third remote operator input is connected to the first output block specifying program, and the first output - to a fourth input of the pulse distributor. -tsN