SU1229793A1 - Training system for radiotelegraph operator - Google Patents

Description

1229793

Chika - the second input of the block, and the output of the block, the second input of the element the stroke of the element. control delays 1Soi soy-diyen with counter output.

The invention relates to training devices and can be used in the preparation of radio telegraphists for listening and transmitting on a key.

The purpose of the invention is to expand the didactic capabilities of the simulator, increasing the efficiency of the simulator and improving the quality of the simulator by taking into account and eliminating errors during the training caused by tempo and rhythm disturbances during transmission manifested in lengthening or shortening the transmitted elements of the mark (dots, dashes and pauses between ) and further elimination of obstacles for a rapid increase in the transmission rate.

Fig, 1 shows the structure of the simulator; in fig. 2 - time diagrams that show his work.

The wireless telegraph simulator contains Morse code shaper 1, electro-acoustic transducer 2, telegraph key 3, sign element analysis unit 4, shaper between signs, shaper pulses 5, display unit 6, generator 7 clock pulses, control unit 8 (generator frequency 7), control element 9 delays and the element OR 10.

Shaper 1 contains the counter decoder 11, the switches 12, the encoder 13, the register 14 and the elements 15 and 16 of the delay. The electroacoustic transducer consists of a sound (tone) generator 17, an analog key 18 and headphones 19.

. Block 4 contains BANKS 20 and 21, counters 22-24, and element OR 25. The capacity of the counters is adjusted depending on the degree of training of the trainees and the requirements that are provided individually to each telegraph operator.

Shaper 5 contains an inverter 26, one-shot 27, the element

And 28 and shaper 29 short mmpulse.

Block 6 has error banners; shortening of points, dash (lengthening

pauses between them) 30, lengthening of points, a dash (shortening the pauses between them) 31 and a time shift between the sign presented and reproducible to an emblem of the sign (changing the reaction time of the student) 32.

Block 8 contains a reversing register 33, a key node 34, the number of which is equal to the number of possible changes in the speed of wiring groups per minute - in the direction of increasing their value at 1 magnitude 5, counter 35 (number of elements), OR element 36 and delay element 37.

Student, perceived sound

The image of the Morse code mark, through the head phones 19 reproduces it with the help of a telegraph key 3 with the same speed.

If the number of errors in one cycle

does not exceed the specified level, then in the second cycle the rate of presentation of characters increases by one gr. per minute. If the number of errors exceeds the specified level, then

The simulator immediately goes to the presentation with a speed of less than one group per minute, and a banner showing the cause of the errors appears.

Tre1 {ager works as follows „

In advance, the element 9 sets the reaction time of the student - the delay time, which is determined in advance.

When the power is turned on, the counter-decoder II returns to its initial state, the counters 22-24 and 35. The switches 12 dial the characters

Morse code, for example, F, I, R, B, P, and t, d., which must be processed in the process of training. Using a button (not shown) in the register

33, the unit is inserted, which advances so that, from the output of the generator 7, the clock feed frequency corresponds to the transfer rate that the learner reaches by a given time, for example, ten groups per minute.

The student presses the Start button (not shown). The impulse. From its output goes to the input of counter-decoder 11, ensuring the appearance of a single potential at its first output, and to the input of element 15. The unit potential from the first output of the counter-decoder 1 1 through switch -12 goes to the corresponding the input of the encoder 13, ensuring the formation on its outputs of the sign of the Morse code indicated on this switch, for example A, in the form of a binary formalized number at which the dot corresponds to 1, a dash 111 and a pause between the elements of the sign - O

The same impulse, passed through element 15, enters the input of register 14, making the latter translate into parallel zacis mode, and passes through element 16, enters input of register 14, ensuring parallel recording of a binary formalized number (Morse code sign) from the encoder outputs 13 in the register 14.

Clock pulses from the output of the generator 7 to the input of the register 14, sequentially extend the binary combination of the sign from the output of the register 14 to the element 9 and to the control input of the key 18, ensuring the passage of the tone frequency from the output of the generator 17 to the headphones 19, characters that reproduce the sound image. Morse code that the student perceives. The elements of the sign of the binary combination are also fed to the counter 35, which records the number of received elements of the characters. Detained by element 9 for the reaction time, the learners about the elements of the sign pass to the information input of element 20 and prohibiting the input of element 21.

The perceived morse code characters are immediately (with a delay of response time) transmitted by the trainee on a telegraph key 3 (the master method). Formed by the learner signs (pulses) are fed to the prohibiting input of the element 20 and the information input of the element 21 and to the input of the imaging unit 8,

If a student learns at a given rhythm and without a shift (the beginning and end of the transferred element of the sign corresponds to the beginning and end of the sign given, taking into account the delay time equal to the reaction time of the student), the element of the sign passes, then at the outputs of elements 20 and 21 there are no pulses (Fig. 2a).

If the student transmits an element of the mark in a given rhythm, but with a shift, i.e. increase the reaction time for any reason, then the outputs of elements 20 and 21 appear pulses (Fig. 2b), which enter counters 22 and 23, respectively, through the element OR 25 - into counter 24 ..

If the trainee shortens the transmitted element of the sign (elongation of a pause) when transmitting, then the output of element 20 is a pulse (Fig. 2c), which enters counters 22 and 24.

If the trainee, when transmitting, extends the transmitted element of the character (shortens the pause) J, then the output of the element 21 is a 1-pulse (Fig. 2d), which enters counters 23 and 24,

Upon completion of the transfer of the first character from the output of the shaper 5 to the input of the element 15 and the input of the counter-decoder 11 receives a pulse, which translates the counter-decoder 11 to the second position, ensuring the formation of the next character code. Morse is similar to that described. The student, perceived the next sign, telegraph, key 8 again reproduces it.

Since each student in the process of transferring marks allows for the same type of inherent errors (the shift between the received and transmitted element of the mark, the lengthening or shortening of elementary assignments), the filling of one or another counter 22-24 depends on whether the type of errors prevails.

If the student transmits signs with a shift, i.e. its reaction time has increased compared to the previously measured, then the counter 24 overflows, as its capacity is set 1.5 times greater than the capacity of each individual counter. (22 and 23) ,. the capacity of which is the same. Overflow pulse - From the output of the counter 24 enters the input of the banner 32 and flashes

the cause of errors (shift in the transmission of characters), which usually occurs 53 due to a deterioration in the functional state of the student,

If the trainee in transmission exceeds the permissible number of errors, for example, the type of shortening of the parcel-extension pause, then the overflow pulse from the output of the counter 22 enters the input of the banner 30 and highlights the cause of the errors. This same impishsh. element 10 enters the input of register 33, providing a reduction in the transmission rate by one group per minute, and through elements 36 and 37 to the installation inputs of counters 35.22-24, ensuring the latter are reset to their original state. The trainee is presented with the next sign of the Morse code with a speed of one I pynny per minute (nine groups per minute). If a student, when transmitting a certain number of characters, for example, 40, including 00 elements, does not exceed the permissible number of errors, then the output of the counter 35 (capacity 99) causes an overflow pulse, which enters the input of the register 33, providing an increase speeds - transfers per group per minute, and through elements 36 and 37 (to the installation inputs of counters 35, 22-24, ensuring the latter are reset to their original state.

 The trainee is presented with the following Morse code signs with a speed increased by one group per minute (11 groups per minute).

The use of the invention in devices for the training of radio telegraphs improves the efficiency of the simulator while simultaneously increasing didactic capabilities and improving the quality of the simulator by fixing in the course of the training not only errors caused by the transfer of an extra element of the sign or a reduction in the number of transmitted elements of the sign, as well as a permutation of the dot - dash. but also errors caused by tempo and rhythm disturbances, leading to shortening or lengthening of the signs, lengthening or shortening of the pauses between and. Unremarkable elimination of errors associated with the shortening or lengthening of the elements of signs and pauses between them makes it difficult to further increase the transmission speed or leads to the termination of its increase. This impairs the quality of training of trainees. Timely removal and removal. errors in transmission leads to a reduction in the time spent on individual work with radio telegraph operators who are not rapidly increasing the transmission speed.

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Claims (4)

. 1. A RADIOTELEGRAPHIC SIMULATOR containing a telegraph key, an indication unit and a series-connected clock generator, a Morse code generator and an electro-acoustic transducer, characterized in that, in order to expand the simulator’s didactic capabilities, a pause pulse generator between characters, an input and an output are introduced into it which are connected respectively to the output of the telegraph key and to the second input of the Morse code generator, and the delay element included in series, the analysis of the sign elements, OR element and control unit, the second input of which is connected to the output of the Morse code generator, information outputs - with the corresponding inputs of the clock generator, and the control output - with the second input of the sign element analysis unit, the third input of which is connected to the telegraph key output, and the outputs - to the corresponding inputs of the display unit, the input of the delay element is connected to the output of the Morse code generator. 2. The simulator according to claim 1, characterized in that the pulse shaper of the pause between the signs contains an inverter, a single vibrator, an element And and a short pulse shaper, the output of which is the output of the shaper, the second input of the element And is connected to the output of the inverter, the input of which is the input of the shaper. 3. The simulator according to π. 1, characterized in that the sign element analysis unit therein comprises a first prohibition element and a first counter connected in series, a second prohibition element and a second counter connected in series, or an OR element and a third counter connected in series, the first inputs of the prohibition elements are the first input of the block, the second inputs counters - the second input of the block, the second inputs of the prohibition elements - the third input of the block, and the outputs of the counters corresponding outputs of the block, the first and second inputs of the OR element are connected to the outputs of the first and the second elements of the ban, respectively. 4. The simulator on π. 1, characterized in that the control unit contains an OR element in series, a delay element, a counter, a register and a key node, the outputs of which are the corresponding information outputs of the block, the first input of the OR element and the second input of the register are the first input of the block, the second input is SU “1229793 chik - by the second input of the block, and by the output of the block, the second input of the element is the stroke of the delay element - by the control OR is connected to the output of the counter. ' 1