SU1169005A1 - System for training radiotelegraph operator - Google Patents

Abstract

TREIAZH1 P RADIOTELEGRAPHIS / GA, containing 11d..1 successively connected, the input unit of the operator’s response, the first delay element and the generator of the reference pulses, the second input of which is the simulator output, the third input is connected to the second output of the response unit. p / ator, and even / .-; TI; and () D; -: lH (HCH1L generator, ale Mfiii OR, and 11e; nz G1os..1 consistently connected elements of comparison, blocks counter

Description

The invention relates to automation and computing, in particular to devices for training and controlling radio telegraph operators on the key, and can be used in setting up and testing Morse code sensors. The purpose of the invention is to increase the accuracy of the simulator by analyzing all the elements of the sign by comparing with the reference ones, the duration of which is determined by the transmission rate reached by the student at the time, regardless of which element the sign begins (dots, dashes, this does not affect accuracy), while switching to the transfer of characters with a different number of elements is carried out automatically. FIG. 1 is a block diagram of a simulator; in fig. 2 is a diagram of a reference pulse driver; in fig. 3 is a diagram of the reference element; in fig. 4 - time diagrams that show the operation of the simulator. The wireless telegraph simulator contains an operator response input block 1, delay element 2, counter 3, decoder 4, generator 5 (time stamps), generator 6 reference pulses, comparison elements 7, counters block 8, indicators 9, time recorders 10 (to select a pause between characters), counter 11, distributor 12, counter 13, decoder 14, the element OR 15, and the element 16 of the delay. Unit 1 contains a telegraph key 17, a differentiation element 18 and a pulse shaper 19. Shaper 6 contains a trigger 20 (with a counting input) one-shot 21, an Element Meirr 22 of differentiation, a driver of 23 pulses, an element OR 24, an element 25 of differentiation, a driver of 26 pulses, an element AND 27, a counter 28, a trigger 29, a element 30 of differentiation, a driver of 31 pulses , element 32, one-shot 33 and 34, while the second inputs of one-shot 21, 33 and 34 are combined and are the second input of the driver, which is used to set the speed of wiring (reference sign elements). Elements 7 contain an inverter 35 and elements 36-38. The recorders 10 contain elements And 39 and the counter 40. The simulator works as follows. Before starting, set the duration of the reference signal, based on the transfer rate reached by the learner, using a switch (not shown) connected to the second input of the imager 6 reference signals, controlled the duration of the signals generated by one-shot (pulses). Turn on the power. All the counters and indicators are set in the iic-running state, and the trigger 20 in the driver 6 is set to the first position. Generator 5 is running. The simulator is ready for operation. Trained by the telegraph key 17 forms the first element of the sign, for example a dash (Fig. 4a). The positive potential from the second output of the block 1 is fed to the input of the element AND 27, to the other input of which pulses are delivered from the generator 5 (Fig. 46). These pulses (time stamps) arrive at counter 28, where their number is counted. If the number of pulses does not exceed 1.5 (where C is the duration of the elementary parcel, the point), then the counter 28 does not overflow; at the output of the trigger 29 there is zero potential. The learner passes the point. If the number of pulses exceeds 1,5-l, 9f; then the counter 28 overflows, which indicates the transfer of the learnable dash, and the overflow pulse arrives at the single input of the trigger 29, thereby ensuring that the unit potential from the output of the second input of the And 32 is applied, preparing the circuit for the pattern former - the dash. The first element of the mark (dash) from the output of the telegraph key 17, having passed through the differentiation element 18, is converted into two pulses generated by the leading and trailing edges, and through the imaging unit 19 will arrive at the delay element 2 (Fig. 4c). From the output of element 2, the first impulse delayed by time G enters the input of the imaging unit 6, ensuring the formation of the reference sign element (dash) and the appearance of the first short rectangular pulse at its second output (Fig. 4e). This impulse is fed to the counter input 11, providing the output of the decoder 12 of a single potential, which is fed to the input of the comparison element 7 (Fig. 4g). The simultaneously delayed first pulse (Fig. 4d) is fed to the input of the counter 3, ensuring the appearance of a single potential at the output of the decoder 4, ory input to comparing member 7 (FIG. 4g). The second pulse of the first element of the sign, arriving at the input of the counter 3, will ensure the cessation of a single potential at one output of the decoder 4 and the appearance of a single potential at another output that is input to the input of the element 7. This same impulse, having entered the input of the thruer 6, will provide the formation of the reference pause. The first impulse of the reference pause from the output of the imaging unit 6 is fed to the input of the counter 13, ensuring the appearance at the output of the decoder 14 of a single potential that is applied to the input of the element 7. The formation of the reference point (dash) occurs as follows. An impulse (odd) from the output of element 2, applied to the input of the trigger 20 (Fig. 2), transfers it to the second position, ensuring the appearance of a single potential at the second output. Front edge pulse

from the output of the trigger 20, triggers the one-shot 34 and the appearance at its output of a pulse of duration C (reference point). This pulse, through element 24, will go to differentiation element 25, causing the appearance at its output of short pulses, which, having entered the shaper 26, are converted into square-shaped pulses (Fig. 4e). The rear edge of the pulse from the one-shot 34, differentiated by element 30, through the driver 31 will go to the input of counter 28, setting the latter to its original state, and to the input of element 32. When transmitting a point at the input of element 32, there is zero potential not; when transmitting a dash at the input of element 32 there is a single potential that ensures the passage of a pulse from the output of shaper 31 to the input of one-shot 33 At the output of one-shot 33 a signal of 2 € duration appears, which, affecting the second input of trigger 29, returns the latter to zero state enters the element OR 24, adds to the signal from the output of the one-shot 34, forming a reference dash of duration 3. The reference signal (dash) differentiated by the element 25 and formed in the driver 26, in the form of two boxes powerful rectangular pulses are applied to the second output of the imaging unit 6 (Fig. 4e).

The reference elements of the mark (points, dashes) are fed from the odd outputs of the decoder 12 to the inputs of the odd elements 7 (Fig. 4d).

When a reference pause is formed, an impulse (even) is applied to the input of trigger 20, which takes it to the first position, ensuring the appearance of a single potential at the first output. The leading edge of the pulse from the output of the trigger 20 triggers a one-shot 21, at the output of which a signal (pulse) of duration t appears; (standard pause). This signal, differentiated by element 22, is fed to a shaper 23, at the output of which short rectangular pulses appear (Fig. 46).

Reference pauses (between the elements of the sign) are fed from the odd outputs of the decoder 14 to the inputs of the even elements 7.

Consequently, pulses (time stamps) from generator 5 are supplied to one input of element 7, the unit potential from output of decoder 4 is supplied to another input, and unit potential from output of decoder 12 is transmitted to the third input when transmitting the first character element.

If the duration of the element formed by the student is equal to the duration of the reference, then there are no time marks at the outputs of the element 7 ..

In the absence of signals at the inputs of the elements 7 (Fig. 3), i.e. on the first and second inputs of the element 38, there are no signals at their outputs. If a single potential arrives at one input of the element 38, the duration of which is longer than the duration of the single potential received at the other input, then at the output of the element 36 there is a time stamp in the vehicle that goes to block 8 and fixes in the indicator 9 a deviation (increase) from the reference element. If a single potential arrives at one input of the element 38, the duration of which is less than the duration of the single potential received at the other input, then at the output of the element 37 there is a time stamp in the output of the module 8 that the deviation (decrease) is fixed in the indicator 9 from the reference element.

In this way, each transmitted element of the mark is compared alternately with a reference point (a dash, a dash, a pause between them), and the number of variable marks determines the amount of deviation from the reference elements for a given wiring speed.

At the same time, if the transfer rate of the student is greater than the set speed on the imaging unit 6, but the transmission rhythm is not disturbed, then after each element of the sign is transmitted on the same outputs of the elements 7, the same number of time stamps (it is necessary to increase the transmission speed on the imaging unit 6), if the transmission speed is lower installed, then on the other outputs of the elements 7 the same number of timestamps (it is necessary to reduce the transmission rate on the imaging unit 6).

With uneven transmission, time stamps of different numbers appear on one or the other of the outputs of elements 7.

The third impulse from the output of element 2, the corresponding end of the pause and the beginning of the second element of the sign (for example, a point), will go to the input of counter 3 and will provide the output at decoder 4 of a unit potential that is applied to the input of element 7. This same impulse arriving at the input of the imaging unit 6, it will cause the appearance at its output of a short rectangular impulse, which enters the input of the counter 11. The signal from the output of the counter 11 will ensure the appearance at the output of the decoder unit 12 of a single potential that acts on the input elec cient 7, etc.

If the duration of the pause between the elements of the character, for example after the transfer of two elements, exceeds 2.2-2.5, which indicates a pause between the characters, which is 4-bG, then the time stamps received through AND 39, whose input is connected to the output of the decoder 4, enters into the counter 40 and overflows it (Fig. 4h). The overflow pulse from the output of the counter 40 will go through the element OR 15 to the inputs of the counters 3, 11, 13 and blocks 8

counters, returning them to their original state, and to indicators 9, highlighting the deviation of the transmitted elements of the mark from the reference ones. The deviation indication continues during the formation of the next character.

When transmitting a sign consisting of five elements, the simulator returns to its initial state for transmitting the next sign due to the pulse generated by the falling edge of the fifth sign element coming from the output of the decoder 4 through the delay element 16 (the delay time of which is 1.2-1.51) to the input element OR 15.

The use of the invention improves the accuracy of the transmission quality assessment by analyzing all the elements of the mark, including the first element. The exclusion of an integrator from the scheme also led to an increase in the accuracy of determining the quality of the transmission, which sharply decreased during the transmission of characters, the first element of which was

dash since the frequency of the time stamp generator has decreased. This is confirmed by the practice of using a prototype. Automating the process of switching when the number of elements in a sign changes eliminates the possibility of the student's attention being dispersed, which contributes to an increase in the effectiveness of the training. Monitoring each element of the mark makes it possible to detect such deficiencies in the transmission as the separation of short signals from long ones and vice versa, as well as shortening of long signals that require immediate elimination. The use of the proposed simulator most fully allows, using appropriate techniques, to eliminate the indicated shortcomings of the trainees, speed up the process of increasing the transmission speed while maintaining a clear rhythm, which does not allow for the appearance of individual handwriting, and reduce the time for training of radio telegraph operators on the key. JULULL 1 LL L

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Claims (1)

A RADIOTELEGRAPHIC SIMULATOR containing an operator response input block sequentially connected, a first delay element and a reference pulse shaper, the second input of which is the simulator input, the third input is connected to the second output of the operator response input block, and the third input is the generator output, element OR and chains of series-connected comparison elements, blocks of counters and indicators, the first inputs of the comparison elements of the chains connected to the output of the generator, characterized in then, in order to improve the accuracy of the simulator, a second delay element, time recorders, three counters and three decoders are introduced into it, the inputs of which are connected to the outputs of the corresponding counters, the first inputs of which are connected to the output of the OR element connected to the second inputs of the counters and indicators blocks and the first inputs of time recorders. the second · inputs of which are connected to the output of the generator. the third inputs are with the first output of the first decoder, and the outputs with the first input of the OR element, the second input of which is connected through the second delay element to the second output of the first decoder, the first output of which is connected to the second inputs of the chain comparison elements, the third inputs of the s odd chain comparison elements are connected to the output of the second decoder, and the third inputs of the elements of comparison of even chains to the output of the third decoder, the second input of the first counter is connected to the output of the first delay element, and the second inputs of the second and third counters - from the first! and the second outputs of the shaper of the reference pulses, respectively. 169005