SU771702A1 - Device for examining skill of radiotelegraphysts - Google Patents

Description

(54) DEVICE FOR THE CONTROL OF PROFESSIONAL SKILLS OF RADIO TELEVISIONERS

one

The invention relates to a technique for studying psycho-physiological reactions and can be used in the professional selection of radio telegraphists.

A device of similar purpose 1 is known, containing a sound generator, a key, a mixer, an attenuator, a power amplifier and an electro-acoustic transducer in series, as well as two memory switching units, a noise generator and a manual control unit. It gives an opportunity to make a qualitative assessment of the test subject's ability to learn telegraph signals by ear, i.e. To determine the limits of difference between the test tone (frequency-) and sound intensity, but does not allow to determine the zone of uncertainty of perception, by which one can judge the subject's ability to distinguish signals.

The closest to the invention is a device 2 containing signal sources, a switching unit with a binominal sequence sensor connected to it, a correct answer counter connected to a display unit, and a console: a student, as well as an interferer, a counter of spurious numbers and a key.

However, this device does not allow to quantify the limits of the possible rate of reception (training) of the subject, depending on the size of the area of perception uncertainty inherent in man. The purpose of the invention is to increase the accuracy of the track 1 device.

This circuit is achieved by the fact that in a known device comprising a sound signal generator,

t5 operator's console, sequentially connected pulse generator and switch, sequentially switched on counter of signals of correctness of answers, recording unit and blocks for presenting audio information, introduced in series the first OR element, delay element, group of elements OR, and first group of AND elements connected to the generator

25 sound signals with corresponding blocks for presenting sound information, a pulse generator connected to a pulse shaper, and a series-connected trigger,

30 second group of elements AND, the second element OR connected to the counter of signals of correctness of answers, the inputs of elements AND of the second group are connected to the outputs of the oniipaTopa pool, the inputs of the triper are connected to the outputs of the switch connected to the inputs of the first element OR and the elements of OR group, On The drawing shows a functional diagram of the device. The device for controlling the professional skills of radio telegraphs contains blocks 1 and 2 of presentation of sound information (stimuli) consisting of sources of euukovykhaniyani electroacoustic transducers 3 connected through the first group of electric signals I 4 to the generator 5 sound signals, Kot-cviyhator 6, shaper 7 pulses , control unit 8, consisting of a generator of 9 pulses with adjustable duration of their presentation and. frequency and delay element 10 with an adjustable delay time of one signal relative to another, trigger 11, counter 12 signals for correct answers, block 13 registration, elements OR 14-17, elements 18 and 19 forming the second group, and bullets 20 with buttons 21 and 22. The elements OR 14 and 16 form a group of elements OR. The device for controlling the professional skills of radio telegraphs works as follows. The experimenter sets the rate at which the stimuli are presented by adjusting the frequency of the generator 9 and the delay time relative to each other of the annoying signals appearing in the electroacoustic transducers 3 using the delay element 10. When the power is turned on, the pulses from the generator 9 through the driver 7 are fed to the input of the switch b. In this case, depending on the given law of distribution, the signal from switch b goes to either the first or second output. Assume that the signal is on the wils at the output connected to the input of the element OR 16. In this case, the unit 2 will be turned on, connected to the output of the element OR 16. E its acoustic signal converter 3 turns on the sound signal. At the same time, the signal from the switch output b comes through the Elocenter OR 15 to the input of delay element 10. In accordance with the previously set value of the delay time at the output of element 10, the signal turns on, which acts on the second inputs of the elements OR 14 and 16. At the same time, the unit 1 will be connected, and in its electroacoustic converter 3 it will also receive a beep with a delay of some the time given by element 10. Both blocks 1 and 2 of stimuli are included. The duration of the activation of blocks 1 and 2 is determined by the pulse duration at the output of the generator 9. The loss of the signal at the output of the generator 9 leads to the deactivation of the electroacoustic transducers 3. In the same way, the device will work even if the signal is connected to the output in KONwyTaTOpe with the input of the element OR 14. Only in this case the block 1 is connected first. The appearance of the signal at the switch b outputs changes the state of the trigger 11 accordingly, ensures the connection of the console 20 with the buttons 21 and 22 from ETA. Suppose that block 2 was turned on first. Then the signal from the switch b output will transfer trigger 11 to a state in which the unit is at the output associated with one input of the And 19 element. If the subject correctly determined which signal was sent first then it is on button 22 (second stimulus). In this case, the signal from the output of the element And 19 will go to the counter 12 through the element OR 17. If the answer was wrong, i.e. button 21 (first stimulus) is pressed - then element I 18 will not miss the answer, since it is connected to the trigger output 11, on which is zero. The operation of the device will not change if the first block was the 1st stimulus, and the subject gave an answer by tapping one or another button. Using the proposed invention for professional selection of radio telegraphists will allow to quantify the limits of the possible reception speed, depending on the size of the perception zone of perception that is inherent in man, will increase the quality of selection of radio telegraphists through an individual approach to their training, by creating groups with the same magnitude of the zone of uncertainty perceive it. This will reduce the time of their training. In addition, the definition of the perception uncertainty zone allows judging the functional state of a person. of the invention. A device for controlling the professional skills of radio telegraphs, comprising an audio signal generator, an operator console, a series-connected pulse generator and a switch, a series-connected counter of signals for correct answers, a recording unit and blocks for presenting audio information from. Determined by the fact that, in order to increase the accuracy of the device, the eye contains the first OR, a delay element, a group of OR elements and the first group of AND elements connected to the sound signal generator and the corresponding sound information presentation blocks, connected to pulse generator, and successively connected trigger, the second group of elements AND, and the second element OR, connected to the counter of the signals of the correctness of answers,

7

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the inputs of the elements And the second group are connected to the outputs of the operator's console, the trigger inputs are connected to the outputs of the switch, also connected to the inputs of the first OR element and the OR elements of the group.

Sources of information taken into account in the examination

1. USSR author's certificate 601741, class, G | 09 B 19/26, 1977.

2. USSR author's certificate on application 2577228 / 18-12,

MCL Q09 B 19/26, 1/30/1978 (prototype).

Claims (1)

Claim A device for monitoring the professional skills of wireless telegraphists ^ comprising an audio signal generator, an operator console, sequentially connected pulse shaper and a switch, subsequently included counter of correct response signals, a recording unit and sound presentation units, characterized in that, in order to increase the accuracy of the device, it contains a series-connected first OR element, a delay element, a group of OR elements, and a first group of AND elements connected to a sound generator signals and with the corresponding blocks for the presentation of sound information, a pulse generator connected to a pulse shaper, and a trigger connected in series, a second group of AND elements and a second OR element connected to a signal counter for correct answers, the inputs of the AND elements of the second group are connected to the outputs of the operator panel, the trigger inputs are connected to the outputs of the switch, also connected to the inputs of the first OR element and OR elements of the group.