SU1167640A2 - System for training radiotelegraph operator - Google Patents

Abstract

1. SIMULATOR OF RADIOTELEGRAPHIST on author. St. No. 947904 ,. characterized in that, in order to increase the accuracy of the simulator, a trigger and an inverter connected in series, a third pulse generator, a single pulse former, a third counter, a decoder, an error detection unit and a display unit are inserted into it, the output of the single pulse former is connected to the second input the error detection unit and the first input of the trigger, the second input of which is connected to the output of the adder, and the output to the third input of the error detection unit, the fourth input of which is connected to the output of the sums the fifth input is with the output of the third pulse generator, the sixth input is with the output of the memory unit, the seventh input is with the output of the operator response input unit connected to the input of the inverter and the second input of the third counter. (L 05 O5 N

Description

2. The simulator according to claim 1, wherein the error detection unit comprises sequentially included registers of the first group, nodes of the AND groups of the elements and registers of the second group whose outputs are the output of the block, second inputs of the nodes of the elements of the AND group, second inputs of the registers The first group, the third inputs of the node elements of the AND group, the second inputs of the registers of the second group, the fourth inputs of the node elements of the AND group, the third and fourth inputs of the registers of the first group are the first, second, third, fourth, fifth, sixth and c the fourth entry block.

3. The simulator according to claim 1, characterized in that in it the display unit contains sequentially included group encoders, elements of the OR group and an indicator, and the inputs of the group encoders are the corresponding inputs of the block.

i

The invention relates to automation and computing, can be used in the training of radio telegraph operators on the key.

According to the main author. St. No. 947904 is known to a radiotelegraphist simulator, which contains an operator response input unit, two counters, an indicator, a serially connected code generator and an electroacoustic converter and a series-connected adder and first integrator, as well as a memory unit, two pulse makers and the first generator, with the input the first pulse shaper is connected to the output of the shaper code generator, and the output is connected to the first input of the memory unit, the second and third inputs of which are connected to the outputs of the first and second counters respectively, the output of the memory unit is connected to the first input of the adder, the second input of which through the second pulse shaper is connected to the output of the operator response input block connected to the output of the second counter, the input of the first counter is connected to the output of the code generator, the integrator output is connected to the indicator inputs and the first generator, the output of which is connected to the input of the driver codes 1.

However, this simulator is characterized by insufficient efficiency, since it does not allow to fix incorrectly transmitted signs.

The purpose of the invention is to increase the accuracy of the simulator by recognizing incorrectly transmitted Morse code characters.

The goal is achieved by introducing a trigger and a series-connected inverter, a third pulse shaper, a single pulse shaper, a third counter, a decoder, an error detection unit, and a display unit into the radio telegraph grapherist;

a single pulse generator is connected to the second input of the detection unit ibiq and the first input of the trigger, the second input of which is connected to the output of the adder, and the output to the third input of the error detection unit, the fourth input of which is connected to the output of the adder, the fifth input - to the output of the third imager pulses, the sixth input - with the output of the memory block, the seventh input - with the output of the input block from the operator's input actions connected to the input of the inverter and the second input of the third counter.

The error detection block contains sequentially included registers of the first

, groups, nodes of elements AND of a group and registers of the second group, whose outputs are outputs of a block, second inputs of nodes of elements AND of a group, second inputs of registers of the first group, third inputs of nodes of elements AND of a group, second inputs of registers of the second group, fourth inputs of nodes the elements AND groups, the third and fourth inputs of the registers of the first group are respectively the first, second, third, fourth, fifth, sixth and seventh inputs of the block.

The display unit contains sequentially included encoder groups, elements of the OR group, and an indicator, the inputs of the group encoders being the corresponding inputs of the block.

0 FIG. 1 shows the structure of the simulator; in fig. 2 is a pulse driver circuit.

The wireless telegraph simulator contains a shaper 1 codes (automatic Morse code sensor - ADRC), an electroacoustic transducer 2 (headphones), a counter 3 (write addresses), a shaper 4 pulses (dash), a memory block 5, a counter 6 (read addresses), Operator response input block 7

0 (telegraph key), shaper 8 pulses (dash) adder 9 (modulo two), integrator 10, generator AND (linearly varying voltage), indicator 12 (errors), inverter 13, shaper 14 pulses ("pause between characters, error detection unit 15 (characters in which admission is detected, transmission error), display unit 16 (characters incorrectly transmitted), trigger 17, single impulse generator 18 (on the falling edge of the “pause between characters”), counter 19 ( elements in the sign), the decoder 20.

Block 15 contains a group of registers 21, consisting of five registers, the first of which has one bit, the second - two, etc., fifth - five bits, a group of nodes of elements And 22, in which the first node consists from one element And, the second - from two, etc., fifth from five elements And; a group of registers 23, having in its composition five registers, the first of which has one bit, the second - two, etc., and the fifth - five bits.

The first group of registers 21 is designed to write one code character in parallel to all registers, the second group of registers 23 is intended to write one code character to one of the registers, which has the number of bits equal to the number of elements in the written character.

The display unit 16 contains a group of encoders 24 consisting of five encoders, the first of which has one input, the second - two, etc., the fifth - five inputs, according to the possible number of elements in the Morse code, are intended for code conversion of a non-uniform Morse code into a sixteen-digit code of an alphanumeric indicator, a group of elements 25 OR, consisting of sixteen elements OR by the number of segments of the indicator used, and an alphanumeric indicator 26.

The imaging unit 4 (8, 14) pulses contains a series-connected integrator 27, a generator 28, an element And 29 and a counter 30.

The student listens to the signals (signs) received from the driver of the 1 codes, the automatic Morse code sensor (ADCM), which are transmitted to the electroacoustic converter, and transmits them at the blss 7 key at the same speed. The rate of presentation of signals (signs) gradually increases, which, in its queue, causes an increase in the trainee's transmission rate on the key.

If the trainee makes an error during transmission, the speed increase slows down, an incorrectly transmitted character will immediately appear on the indicator 26, and when the error rate reaches the set level, the indicator 12 will illuminate the indicator 12, ordering the learner to stop

transfer, concentrate, and then according to the instructions, after a certain period of time, start work again. The device works as follows.

When switched on, the block 5, the counters 3 and 6 are reset to the initial state. Pressing a button (not shown) starts the generator 11 (linearly varying voltage), and from the driver 1 through

0 electroacoustic transducer 2, telegraph signs will be shown to the student. At the same time, these characters arrive at counter 3, where an address code is generated for writing to memory block 5. In block 5, the logical zero corresponds to the “point, the logical one is dash. The elements of telegraphic characters are recognized by the former 4, the pulse at the output of which is permissive for recording the logical unit in memory block 5.

0 The trainee immediately transmits the received telegraph signs on the block of block 7. The marks generated by the learner go to the imaging unit 8 and to the counter 6. The counter 6 provides sequential reading

5 from the block 5 pa.ti, also the elements of characters, i.e. the pulses corresponding to the "dash" element are read and fed to the adder 9 to detect transmission errors. The other input of the adder 9 receives pulses corresponding to the element “dash, from the imaging unit 8, formed by the learner on the key of block 7. If the student reproduces the received signals on the key of block 7 without errors, then there will be no pulses at the output of the adder 9.

The generator 11 is connected to the shaper 1 and controls the change in the rate at which characters are transmitted from it, which can smoothly increase. The slew rate sets 0 SI preliminarily by a set of parameters of the generator 11.

If the trainee made a mistake, then at the output of the adder 9, the Wits pulse that goes to the integrator

5 low frequencies) 10, at the output of which the constant component of the Vits is proportional to the error rate. The magnitude of this constant, affecting the input of the generator 11, changes its parameters, thereby regulating (decreasing) the rate of increase in the transmission of characters from the former 1. When the voltage at the output of the integrator 10 exceeds a predetermined threshold value (the error rate has become unacceptable large) indicator 12 lights up when the equipment ends. In this case, the trainee stops transferring and, after the necessary interruption, resumes training.

At the same time, recognition and indication of an incorrectly transmitted character is carried out.

The pulses corresponding to the elements of the Morse code dash also go to the inputs of the group of registers 21 from the output of block 5. The first register of group 21 has one bit, the second has two, and so on, five - five bits, in accordance with irregular morse code. Writing a code in each register 21 permits pulses from the output of the key of block 7, which are fed to the input of block 15, to the clock input of registers 21. To the input of block 15, a signal comes from the output of trigger 17, which is set to this state by an error pulse that occurs at the output of adder 9 in the case of an incorrectly transmitted Morse code element, and prepares a group of nodes 22 for opening. In addition, the pulses from the output of the key of the block 7 are counted by the counter 19.

At the time of the appearance of a pause between the signs of the Morse code at the output of the driver 14, a pulse is applied to the inputs of the nodes 22 and also prepares them for opening. Simultaneously with the appearance of a pause, the counter 19 stops counting the elements of the generated characters, it will fix the number of elements in the character of the code, then a pulse will open on one of the outputs of the decoder 20, which will open one of the nodes 22 to overwrite the code from the register 21 into one of the registers 23 This thereby ensures the separation of the non-uniform Morse code into separate characters (letters, numbers).

Further, at the end of the pause, a pulse 18 is generated by the shaper 18, which initializes the counter 19, the registers 21 for recording the elements of the next character in them, as well as the trigger 17.

The fixed code of an incorrectly transmitted character in one of the registers 23, in which the width corresponds to the number of elements in this character, enters the corresponding encoder 24 and then, through the elements 25, illuminates the incorrectly transmitted character on the indicator 26.

The display of this sign is terminated by the occurrence of the next error, which is displayed after the recognition. Further, the operation of the device for recognizing incorrectly transmitted characters repeats as described.

Shaper 4 (8) pulses provides the selection of the elements of the "dash mark as follows.

The signal corresponding to the Morse code symbol enters the integrator 27, the output of which is a constant component. This voltage controls the frequency of the generator 28, which is proportional to the transmission rate of the Morse code characters. The pulses from the generator 28 are fed to one input of the element 29, the other input of which receives the transmitted pulses of the Morse code. The output of element 29 is connected to counter 30, where the number of pulses received from generator 28 is counted in a time equal to the duration of the element of the transmitted Morse code sign. If counter 30 overflows at its output, a Wits pulse indicates that there is a dash in the transmitted Morse code sign. The counter 30 is reset to the falling edge of each transmitted element of the mark.

The driver circuit 14 and its operation is similar to that of driver 4 (8) and its operation, but is somewhat different in the parameters of the elements. The presence at the input of the imaging unit 14 of the inverter 13 provides for the selection of the “pause between the characters.

The use of the invention makes it possible to increase the effectiveness of training by recognizing incorrectly transmitted characters and displaying them in the course of work, so the trainee has the opportunity to visually see the signs formed with errors and take this into account during training, which eliminates systematic errors and errors. reduce learning time.

Claims (3)

1. TRAINER OF A RADIOTELEGRAPHICIST by ed. St. No. 947904 ,. characterized in that, in order to increase the accuracy of the trainer, a trigger and a sequentially connected inverter, a third pulse shaper, a single pulse shaper, a third counter, a decoder, an error detection unit and an indication unit are introduced into it, and the output of a single pulse shaper is connected to the second the input of the error detection unit and the first input of the trigger, the second input of which is connected to the output of the adder, and the output to the third input of the error determination unit, the fourth input of which is connected to the output of the adder , the fifth input - with the output of the third pulse shaper, the sixth input - with the output of the memory block, the seventh input - with the output of the operator response input block connected to the inverter input and the second input of the third counter. FIG. 1 2. The simulator according to π. 1, characterized in that the error determination unit contains successively included registers of the first group, nodes of the elements AND groups and registers of the second group, the outputs of which are the output of the block, the second inputs of the nodes of the elements AND groups, the second inputs of the registers of the first group, the third inputs of the nodes of the elements And the groups, the second inputs of the registers of the second group, the fourth inputs of the nodes of the elements of the And group, the third and fourth inputs of the registers of the first group are the first, second, third, fourth, fifth, sixth and seventh inputs of the block a. 3. The simulator according to π. 1, characterized in that in it the display unit contains sequentially connected group encoders, elements OR groups and an indicator, and the inputs of the group encoders are the corresponding inputs of the block.