SU760168A1 - Device for examining radiotelegraphysts for skill - Google Patents

Description

The invention relates to the study of psycho-physiological reactions and can be used to assess the functional state of operators of various systems and in the professional selection of radio telegraphers.

A device is known that contains sensors of sound stimuli, recording devices, a switching circuit, as well as measuring instruments, attenuators of a discrete reference and matching transformers, a stepping finder and a set of static and dynamic switches providing a consistent supply of stimuli [1].

‘The drawback of the device is the impossibility of exploring the area of the Unclear perception of the sequence of sound signals. Namely, the study of the border from the simultaneity to the sequence makes sense in studying the problem of perception of the sequence. ,

It is also known a device containing an operator console, a switch, an electronic relay unit time2

No, the unit of test signals and the electric stopwatch £ 2 ^ · ι The disadvantage of the device is the impossibility of investigating the area of its intersection percept boundaries between continuous and sequential perception.

The closest technical solution to the invention is a 10 device containing a source of irritation (a block of stimuli), a switching unit, a response time meter and sensors' response (the test console), as well as a set of light filters and adjustable AC amplifiers, the stimulus being made in · form a set of lamps with a continuous spectrum of radiation, some of which create a signal stimulus, and the other part of the background £ 3.

The drawback of the device is the low quality of the use of the perception reaction, which doesn’t allow to determine the 25 zone of unclear perception in the case when the interval between two events is weakly expressed. Practice shows that in the problem of perception of the sequence, the greatest interest is the study of

ΊΠίΙ 1111151.¼

there are uncertainties, η within which order or simultaneity cannot be determined precisely.

The purpose of the invention is to improve the accuracy of the device by determining the range of reactions between continuous and discrete perception.

The goal is achieved in that a known device containing a control unit connected to the switch of the presented signals, an operator console connected to the registration unit, a switch on the signals presented in series and a block of sound signals presentation, a response time meter connected to the switch of the presented signals, a switch signals of the correct answers, connected to the operator’s console, the switchboard of the presented signals and the registration unit, random number generator, connection connected to the control unit and the switch of the presented signals, a delay element connected to the switch of the presented signals, and an OR element connected to the operator’s console, the recording unit, the reaction time meter and the control unit, the registration unit containing a counter of correct answers, total number of responses and signals uncertainties of distinguishing sounds, connected to the corresponding display nodes.

The drawing shows a block diagram of the proposed device. The device contains the block 1 of presentation of sound information, made in the form of separate sound stimuli. Leu 2 of the same intensity but different frequency, switch 3 of the presented signals, consisting of logical elements 4 OR, logical element 5 OR and distributor b, delay element 7, driver of 8 random numbers, control unit 9, switch 10 of correct response signals, containing logical elements 11 TH and 15 OR, operator panel 13, consisting of buttons 14 and button 15 "Simultaneously", registration unit 16 containing counter 17 correct answers, connected to display node 18, counter 19 Total answers associated with scrap 20 and counter 21 indicating signals uncertainty distinguishing sounds connected to node 22 indicating logical. element 23 OR and meter 24 reaction times.

Device for monitoring the professional skills of wireless telegraphs works as follows.

The subject is asked to determine which of the signals was given

. the first. If he has determined the signal, then press the button 14 corresponding to the given signal. If, in his opinion, all signals were given simultaneously, he presses the button 15 "Simultaneously". The experimenter with the help of control unit 9 sets the study program, namely: the number of stimuli presented, the frequency of presentations and the duration of the sound. On the element

7 sets the delay time for the onset of the remaining stimuli with respect to the signal.

The command from block 9 is connected to the switch 3 driver

8 random numbers. At the same time on one of the outputs of the switch 3 appears a signal corresponding to a random number. This signal through the corresponding element 4 OR switches on one of the stimuli 2. At the same time, the same signal through element 5 OR enters the delay element 7 and starts the meter 24 reaction times. After some time, element 7 through the second inputs of logic elements 4 OR simultaneously connects all other stimuli. In addition, the switch output

3 sends a signal to one input of a logic element 11 AND switch 10.

If the subject correctly determined which of the signals was presented. flax first then he presses the button

14. At the same time, from the output of element 11, the signal through element 12 OR enters counter 17, the contents of which are displayed in display unit 18. In addition, the signal from the second output of the button 14 through the element 23 ·

OR will turn off the meter 24, prepare the control unit 9 for the next presentation and write “1” to the counter 19, the contents of which are displayed by the display unit 20.

If the subject incorrectly determined which of the signals was presented first, then at the output of the switch 10 there will be no signal and "1" will be recorded only in counter 19.

If the subject presses the button 15 "Simultaneously", then from its output the signal will go to the counter 21, the contents of which is displayed by the node 22, through element 23 OR to the counter 19, turn off the meter 24 and prepare block 9 for the next presentation.

The delay element 7 allows you to set the interval between the signal and signal stimuli within 50-300ms, i.e. interval, which is equal to the zone of uncertainty perception. The presence of several stimuli and the accidental inclusion of each of them first practically exclude

760168

6

It provides guessing and enhances the objectiveness of research.

The proposed device allows to improve the quality of perception response research when assessing the functional state of operators of various systems due to a more accurate fixation of a zone of unclear perception depending on physical, biological and psychological factors.

Claims (2)

Claim 1. A device for monitoring the professional skills of radio telegraphists, containing a control unit connected to the switchboard of the presented signals, an operator console connected to the recording unit, a series-connected switchboard of the presented signals and a sound signal presentation unit and a response time meter connected to the switchboard of the presented signals, different in order to increase the accuracy of the device by determining the range of reactions between continuous and discrete perception of information It contains a switch of correct response signals, connected to an operator’s console, a switch of presented signals and a registration kOm block, random number generator connected to a control unit and switch of presented signals, a delay element connected to a switch of the displayed signals, and an OR element , connected to the operator’s console, recording unit, reaction time meter and control unit. 2. The device according to claim 1, about tl and,. that in it ³ registration block contains a counter correct answers, the total number of answers and the signals of ambiguity of distinguishing sounds, connected to the corresponding display nodes. 20