SU1101874A1 - Device for evaluating working capability levels of radiotelegraphic operators - Google Patents

Abstract

A device for evaluating the professional fitness of radio operators, containing a unit for presenting educational information, connected to an electroacoustic converter and a logic unit, the panel of test subjects and counters of the number of transmitted characters, correct and incorrect answers, distinguished by the fact that, in order to improve the accuracy, concentration of auditory attention, a delay element, a comparator unit and a pause-forming unit, the input of which is connected to the output of the presentation and For information, the first output is connected to the counter of the number of transmitted characters and the second input of the logic unit, and the second output is. the progress through the delay element is with the third input of the logic unit, the outputs of which are connected to the inputs of the comparison unit, the other inputs of which are connected to the outputs of the test panel, and the outputs are connected to counters of correct and incorrect answers. SP 00 -vj

Description

The invention relates to the field of automation and can be used in educational institutions in the selection of training in the specialty of radio telegraphists and in simulators. A device for assessing the professional suitability of radio telegraphists, a control pulse driver, an information board, a program setting unit, a pulse distributor, a registration unit, a Morse code generator, a response input unit, a comparison unit, an AND block and an electroacoustic converter Cl are known. This device determines the stability of the auditory memory of the subject improving the quality of the selection, but makes it impossible to judge the degree of concentration of attention when receiving the melody of the mark, which subsequently affects the results of training (long training sessions to eliminate the mistakes made due to incorrect determination of the last element of the mark) due to insufficient selection accuracy. The closest to the invention in terms of technical essence is the operator operators' slug containing a training information node connected to Lenin in series, connected: through the tone changing unit with headphones, the answer evaluation node, the second input connected to the impact unit (keyboard, OR, logic block, the other inputs of which are connected to the information speed control block, and counters t23. However, the known device does not separate the errors caused by incorrect p the students learn about the last element of the sign, which makes it impossible to judge the degree of concentration of auditory attention. The greatest number of errors are made by students who receive signs that are identical in structure but differ in the last element, i.e., signs, the number of elements in which is the same the elements except for the last are similar to each other. These signs make up half the signs of the Morse code (s - f, f - th, 3 - y, v - p, n - h, and - n, o - d, b. b) , The aim of the invention is to improve the accuracy of the assessment by identifying the degree of concentration of auditory attention in the process of perceiving the received mark by determining the last element of the mark from the melody. The goal is achieved by the fact that a delay unit, a comparison unit and a pausing unit, whose input is entered into a device containing a training information module, connected to an electro-acoustic converter and a logic unit, a panel of test subjects and counters of the number of transmitted characters, correct and incorrect answers. connected to the output of the training information presentation unit, the first output is connected to the counter of the number of transmitted characters and the second input of the logic unit, and the second output through the delay element is connected to retim input logic unit which outputs are connected to inputs of a comparison unit, whose other inputs are connected to outputs of the test panel, and the outputs are connected to the counters of correct and incorrect answers. Figure 1 shows the functional diagram of the device; 2 shows timing diagrams for his work. The device contains a block 1 of presentation of educational information, consisting of serially connected sensor 2 random numbers, block 3 programs., Encoder 4 and sensor 5 Morse code (DKM ;, as a block 1 you can also use a tape recorder, on the magnetic tape of which all structural signs in a predetermined sequence and clock pulses. In addition, the device contains an electro-acoustic converter (EAF / b (headphones, delay element 7 {made on a T-trigger), a pause-shaping unit 8 consisting of an invert 9, one-shot 10 and element 11, logical block 12, having a register 13, the first (clock) and second (setting O 1 in the moves of which are the first and second inputs of the block, respectively, and two keys 14 and 15, information inputs which are connected respectively to the first and second outputs of the register bits 13, the control inputs are combined and are the third input j and the outputs respectively the first and second outputs of the block, the comparison block 16, the first output of which is connected to the correct answer counter 17, the second output to the counter 18 wrong answers, and the third and fourth inputs, respectively, with the first and second outputs of logic unit 12, the test console 19, consisting of a dash formation block 20 and a point (a dash is formed from two points), the first and second outputs of which are the console outputs and connected, respectively, to the first and second inputs of the comparison block 16, and the Dash 21 and 22 Point buttons, connected to the block 20, the 23-digit counter.

la transmitted characters connected to the second output of block 8.

The principle of operation of the proposed device is as follows.

The test subject is presented with a consecutive series of Morse code characters consisting of .3–4 elements (structural signs formed in the training information presentation unit 1. After listening to each sign, the subject determines the element by which the character ends with the melody: dash or point, and presses the corresponding button 21 or 22 on the panel 19 of the test.

The number of mistakes made, taking into account the omission of marks, determines the degree of concentration of auditory attention in the process of perception, taken according to the melody of the mark.

The device works as follows.

In block 1 of presentation of training information, random number sensor 2 produces pulses - an random sequence of numbers that go to block 3 of programs. The output signals of block 3 of programs go to encoder 4, where they are converted into Morse code signals and sent to DCM 5 and the input of the inverter 9 (lig. 25) of the pause forming unit 8. From the output of DCM 5, the signals arrive at the EAP b, and from the clock pulse generator (output 2 DKM 5) - to the clock input of the cipher timer 4 and to the counting input (clock input of the register 13 of the logic unit 12 (Figure 2 a). From the inverter 9 output inverted The Morse code signal (Fig. 2b) is applied to the inputs of delay element 7.

(providing a delay of one cycle), the one-shot 10 and element 11, the second input of which is connected to the inverse output of the one-shot 10. From the output of element 7, the delayed inverted signal (gp1.2g) nocTynaieT to the second input of the register 13. Clock pulses; Coming from the output 2, the DCM 5 (Fig. 2a), fed to the first input of the register 13, appears at the outputs of the first and second bits (Pig 2 a and e). During the transmission of the sign elements to the control inputs of the keys 14 and 15, an impulse of control is not applied; there are no signals at the output of the keys. During a pause between the signs from the output of the element I 1, a pause pulse is applied (Lig.2). which, acting on the control inputs of the keys 14 and 15, reads the information from the first and second bits of the register 13 into the comparison block 16 (FIG. 2e and k) to the third and fourth inputs, respectively, and enters the counter 23, fixes the number of subjects listened marks. If the last element of the sign is a dash, then on both outputs of register bits 13 there is a signal, and if it is a dot, then the signal is only on the first bit (Fig. 29 and e). ;

 The subject recognizes by the melody the end. (Last element) of the character and presses the corresponding button. With the correct identification at the end of the dash mark, the subject presses the button

 and an impulse appears at the first output of the comparator block 16, and the counter 17 records the correct answer (Fig. 21. If it is not correctly recognized (the subject presses the button

22 Point) a pulse appears at the second output of block 16 of comparison, and counter 18 records the wrong answer. If, however, during the pause between the signs, the test person did not have time to press the button (21 or 22), then it is recorded as a pass of the sign, which indicates that the end of the sign is not distinguished or the subject’s response is slow.

The use of the proposed invention allows to improve the quality (accuracy) of selection and reduce the time of training due to the refusal in admission to an institution of persons with a low concentration of auditory attention when receiving telegraph signals of the Morse code.

The known device does not allow to distinguish small errors, errors made at the beginning of the sign, errors made at the end of the sign, and to identify the causes of incorrect identification, the construction of error graphs of each sign is required. The proposed invention improves the error analysis and improves the accuracy of the device by fixing errors associated with the incorrect distinction of the end of the sign (the last element in the sign).

d e

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Claims (1)

DEVICE FOR ASSESSING THE PROFESSIONAL SUITABILITY OF RADIO TELEGRAPHERS, containing a unit for presenting educational information connected to an electro-acoustic transducer and a logical unit, a panel of subjects and counters of the number of transmitted characters, correct and incorrect answers, characterized in that, in order to increase the accuracy of the pupil by detecting the degree of concentration of the pupils auditory attention, a delay element, a comparison unit and a pause forming unit, the input of which is connected to the output of the training information presentation unit, are introduced into it FDI, the first output is connected to the counter of the number of transmitted characters and the second input of the logical unit, and the second output through the delay element is connected to the third input of the logical unit, the outputs of which are connected to the inputs of the comparison unit, the other inputs of which are connected to the outputs of the test panel, and the outputs are connected to counters of correct and incorrect answers. FIG. 4