SU1273975A1 - Device for training radiotelegraph operator - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used in the training of radio telegraph operators. The purpose of the invention is to expand the didactic capabilities of the simulator. Introduction to the simulator of the trigger 8, element 9, delay 10, switch 11, one-shot 12, element BAN 14, divider 13, indicator 34 and counter 7, as well as the response analyzer 2 allows you to train radio telegraphs to perceive Morse code signs . 1 hp f-ly, 2 ill.

Description

The invention relates to automation and computer technology and can be used in training operators (radio telegraph operators) to listen to radio telegraph signals in conditions close to real (simulating signal fading).

The purpose of the invention is to expand the didactic capabilities of the simulator due to the training of operators j, meaningful perception of Morse code signs (numbers) in tune, i.e. maintaining accurate radio reception in the presence of fading.

FIG. Figure 1 shows the functional electrical circuit of the simulator; in fig. 2 - time diagrams for the formation of fading in the displayed signs.

The simulator is glad | -ulegrafist containing HQiT series-connected nyjibT 1 operator, block 2 response analysis, block 3 controls, block 4 program settings, register 5, generator 6 clock pulses, counter 7 (correct answers), trigger 8, element .and 9, element 10 delays, switch 11, one-shot 12, divider 13, prohibition element 14, key 15, sound generator 16, electric-acoustic converter 17.

The operator’s console 1 has buttons 18; + 18 (0 replies, each of which has a nameplate to each of them, allowing to replace the letter (number) indicated in it, and the Start button 19,

The block for analyzing responses contains elements AND 20, + 20, (,, inverters 21 and 22, elements OR 23 and 24, element BANE 25 and element 26 of delay.

The control unit 3 includes a counter-decoder 27, delay elements 28 and 29, and UTI elements 30 and 31.

Vlok 4 tasks of the program contains a switch 32, -32, o and w-gfrator 33

The simulator also contains indicator 34,

The simulator works as follows.

Pre-switches, 0 in random order, set the letters (numbers), and switch 11 - the delay time of the pulse, ensuring the introduction of fading into the corresponding (specified) interval of the code combination of the sign on the power supply. Counterdecryptor 27, counter 7 and register

5 is reset, generators 6 and 16 are turned on. The simulator is ready for operation.

The student (operator) presses the Start button 19, the pulse from the output of which is fed to the second input of the trigger 8, and sets the latter to the zero position (the output is zero potential), and passes through the OR element 30, enters the input of the counter-decoder 27 and wakes the appearance at its first output 1, which is fed to the second input of the element AND 20 and through the switch 32 to the corresponding input of the encoder 33, at its output provides the formation of the sign of the Morse code in the form of a binary formalized number. The pulse from the output of the element OR 30, passed through the element OR 31 and the element 28 delay, enters the third input} and passes through the element 29 of the delay, and the fourth input of the register 5, providing a record of a binary formalized number from the outputs of the encoder 33 through the first inputs-register five,

The clock pulses from the output of the generator 6 to the second input of the register 5 are driven by a binary combination of the sign through the output. Single potentials of a binary combination of a sign (a point, a dash) are fed to the information input of the BANCH element 14 and, having passed the last (since its forbidding input has zero potential), are fed to the control input of the key 15, ensuring the passage of the tone frequency from the generator 16 output to the electroacoustic converter 17,

The operator, having listened to the sound image of the Morse code mark presented to him, identifies it and presses the corresponding button of the console 1, on the nameplate co. the second is the identified letter (number), for example button 18,

If the operator correctly identified the sign, then the pulse from the output of button 18 (through element AND 20 (of which there is one at the second input) and element OR 23 goes to the first input of counter 7 and records the correct answer, and passes through element OR 30, goes to the input of the counter-decoder 27 and provides the appearance of 1 at the second output, which is fed to the second input of evil, And 20 and passed through switch 32, to the corresponding input of the encoder 33, ensuring at its outputs the formation of the next Morse code sign, which regis 5 is supplied to the electroacoustic converter 17. At the same time, the pulse from button 18 is fed to the input of the OR 24 element, the output of which through the delay element 26 is fed to the second input of the AND 9 element (but does not go further, as the first input of the AND 9 circuit receives a zero potential from the output three hera 8), and through the inverter 21 - to the forbidden input of the element 25 (but it will not go further either, since zero potential is supplied to the information input of the element 25 from this output of the inverter 22). The operator is presented with the following (second) sign for identification. If the operator has incorrectly recognized the sign, i.e. instead of button 18 (for example, pressed button 18 (d, then the unit potential from its input through the element OR 24 and the inverter 21 enters the prohibiting input of element 25. As the outputs of the elements 20-20 and, accordingly, the input of the inverter 22 equal to zero, then the unit potential from the output of the inverter 22. is fed to the information input of the element ZALRET 25. The pulse from the output of the element 25 goes to the second input of the counter 7, returning the last to the initial state, and to the third input of the block 3 (the input of the element OR 31 ), ensuring that the second presentation is incorrect in The same character is presented for identification until the operator reproduces it correctly. If the operator correctly identified (reproduced) all ten characters without repetition, then when you press the button for the tenth of tenth answer, the pulse from the output ment OR 24 is fed to the input of element 26, the delay time of which is determined by the response time of elements 20, 23, 7 and 8. At the same time, the same pulse through the elements AND 20 and OR 23 is fed to the first input of counter 7, ensuring the appearance at its pulse output overflow which and 10 indicator light 34, alerting the operator to move pred fading phenomenon characters, and will go & is input to the first flip-flop 8, translating it into a single state (output unit potentsiap). A single potential from the output of the trigger 8 applied to the first input of the element AND 9 ensures the passage of a pulse from the output of the input delay element 26 to the element 10, the delay time of which is determined by the position of the switch 11. The delayed pulse from the output of the element 10 goes through the switch 11 to the first input synchronous one-shot 12, to the second input of which clock pulses are output from the splitter 13 (Fig. 2), the input connected to the generator 6, the pulse sequence on which code is shown in FIG. 2a At the output of the one-shot 12, a pulse appears with a duration equal to the period of the clock pulse received from the output of the divider 13 (Fig. 2d). This pulse arrives at the prohibiting entry of the element BANCH 14 and does not allow the input of the key 15 to be an element of the sign of the Morse code supplied from the output of the register 5 to the information element 14 (FIG. 2 #), which is in phase with it. From the output of the key 15, a code combination of a character (digit) is removed, in which one element is missing (FIG. 2e-). This is equivalent to short-term signal fading. The operator, having listened to the presented signal, interprets it, restores the sound image of the sign from the previously memorized melody and presses the corresponding button 18. If the operator correctly identifies the sign, a pulse appears at the first output of block 2, which fixes the correct answer in counter 7 and entering the first input of block 3, provides the presentation of the next character. If the operator has incorrectly recognized (reproduced) the sign, then a pulse appears at the second output of block 2, which returns the counter 7 to the initial state and, arriving at the third input of block 3, provides the repeated presentation of the incorrectly reproduced sign. The training continues until the operator learns to recognize the signs from the first presentation. If the operator all ten characters (hffr) with fading recognizes without

repetitions, an I1 overflow pulse appears at the output of the counter .7, which will again illuminate the indicator 34, warning the operator to transfer the switch 11 to the next position (insert another element sign).

Thus, the operator is trained in the identification of characters with a short fading of any element of the character.

Claims (2)

1. A wireless telegraph simulator containing a response analysis unit, a control unit, a program setting unit, a register, a clock generator, an operator console, the first output of which is connected to the first input of the control unit, and the other outputs from the W input of the first group of response analysis unit, The second outputs of which are connected respectively to the second and third inputs of the control unit, the outputs of the group of which are connected to the inputs of the second group of the response unit and the inputs of the program setting unit, the first and second outputs of the control unit Inen respectively with the first and second inputs of the register, the third input of which is connected to the output of the clock pulse generator, and the group inputs to the outputs of the program task block, connected in series to the sound generator, key and electro-acoustic transducer, with the aim of expanding the didactic capabilities of the simulator, the trigger connected in series, the element I, the delay element, the pryyuhyuchatel, one-shot and the element BAN, the second input of which is connected to the output of the register and you one - with the second key input, a divider whose input is connected to the output of the clock pulse generator, and an output to the second one-vibrator input, an indicator and a counter, the inputs of which are connected to the first and second outputs of the analysis unit, and the output to the indicator input and the first input trigger, the second input of which is connected to the first output of the operator’s console, the second input of the element I is connected to the third output of the analysis unit. 2. The simulator according to claim 1, characterized in that the response analysis block comprises the first OR element, the first inverter and the BAN element, whose output is the first output of the block AND elements, the first inputs of which are the inputs of the first group of the block, and the outputs are connected to the inputs of the OR element, whose output is the second input of the block, the second inverter, the delay element and the second OR element, the inputs of which the second inputs of the corresponding AND elements are the inputs of the second group of the block, the output of the second element This OR is connected via the second inverter to the second input of the BAN element and directly to the input of the delay element, the output of which is the third input of the unit.