SU896666A1 - Trainer for radiotelegraphysts - Google Patents

Description

(54) RADIOTELEGRAPHIST TRAINER

The invention relates to radio telegraph simulators and can be used as a simulator of control system operators.

A wireless telegraphic simulator is known that includes a radio telegraph operator connected to a signal duration conversion unit, through a single pulse generator — with a prohibition logic unit, and through a pulse shaper — with a logical information conversion unit, which is connected to a comparison unit and a time stamp generator, via a prohibition logic unit with an electroacoustic conversion unit and a pulse shaper, and an information display unit 1.

A disadvantage of the known simulator is the low efficiency of the simulator.

The purpose of the invention is to increase the effectiveness of training.

The goal is achieved by the fact that the simulator has a reversible counter, a re-cycle counter and a frequency divider, while the output of the comparison unit is connected to the input of the reversible counter, the outputs of which are directly and through the counter

re-cycles are connected to the inputs of the display of information, and the output of the generator of single pulses is connected via a frequency divider to the control input of the radio telegraph operator.

FIG. 1 shows a structural diagram of the simulator; in fig. 2 - block diagram of the mode of operation; in fig. 3 is a block diagram of a transform scale setting unit.

The simulator contains a wireless telegraph operator 1 consisting of a block 2 mode

Q operation, conversion scale unit 3 and key 4, single pulse generator 5, prohibition logic unit 6 consisting of AND 7 and 8 logic elements and prohibition logic element 9, OR 10 logic element, electroacoustic converter 11, duration conversion unit 12 signals consisting of trigger 13, time delay elements 14, AND 15 logic elements and OR 16 logic element, pulse shaper 17, time stamp generator 18, logical information conversion unit 19, consisting of logical Their elements are 20 and 21, a comparison unit 22, consisting of logic elements I23-25 and inverters 26 and 27, a frequency divider 28, a reversible counter 29, a repeat-cycle counter 30 and an information display unit 31 consisting of a banner indicating the number mistakes, and banners I cycle, II cycle and the end of the work, triggers 32 and 33, logical gate 34, decipher 35 and counter 36. The position 37 designates the control input of the wireless telegraph operator. The electroacoustic conversion unit has an electroacoustic converter 11 and a logic element OR 10. The operation mode block 2 consists of a trigger 32, a trigger 33 and an AND 34 logic element. The block 3 is a pulse distributor consisting of decipher 35 and a counter 36. Simulator Wireless telegraphy works as follows. When the power is turned on, the pulse distributor of block 3 (de-baffle 35 and counter 36), unit 2 of operation mode, reversible counter 29 and counter of repeated cycle 30 are reset, on the display of information display unit 31, the "I cycle" is displayed. The user presses key 4. At the same time, the signal is fed to the input of the pulse shaper 17, the output of which is connected to one input of the logic element AND 20, to the other input of which nothing is fed into the nerve mode, and to the information input of the logic element 9 ban, prohibiting the input of which is connected to the output of the logical element And 8, and starts the generator 5 single and. pulses, which generates a pulse of a certain duration T. This pulse arrives at the input of block 2 of operation mode (at the counting input of trigger 32 and the single input of trigger 33) at the input of divider 28, at the first input of the logic element I 7 and the first input of the logic element I 8. At the same time, from the output of block 2 which, under the influence of the leading edge of the pulse from the generator 5, is set to the first mode, a pulse is applied to the second input of the logic element AND 8, and from its output through the logic element OR 10 to the input of the electroacoustic converter 11. The conversion scale unit 3 avlivaets a first position corresponding to the minimum masschtabu conversion (transform coefficient vysvechivaets 1 and the remote indicates how many times it is necessary to increase the duration of the reproduced signal compared with the control) and the electroacoustic transducer 11 reproduces the sound image of this pulse. The student listens to the sound image of the pulse and records its duration T. 6. Then re-presses key 4 and, in accordance with a predetermined program specified in the training method, withstands a pressing duration equal to pi (where 2 is automatically set in block 3 of the conversion scale setting) . In this case, the signal from key 4 starts the generator 5, the pulse from the output of which transfers the operation mode unit 2 to the second mode, and the conversion scale setting unit 3 does not change its state, since this pulse (second) does not pass through the frequency divider 28 . At the same time, the signal from the key 4 is fed to the input of the pulse generator 17, from the output of which to the first input of the logical element I 20 and to the information input of the logical prohibition element 9. The impulse from the output of block 2 of the operation mode arrives only at the second input of the logical element I 7 and to the trigger input of the generator 18 time stamps, the output of which is connected to the second inputs of the logical elements And 20 and 21 of the logical information conversion unit 19. At the output of the logical element And 8 the first input of which is connected to the output of the generator 5, there will be no signal, since there is no signal at the second input, since it is connected to the prohibitory input of the inhibiting logic element 9, the signal from the driver 17 passes through the logical element 9 the prohibition and the logical element OR 10 on the electroacoustic transducer 11, and the learner has the ability to control the transformed impulse generated by him. The pulse from the output of the generator 5 single pulses through the first input of the logic element And 7 also enters the input of the block 12 converting the duration of the signals. The leading edge of this pulse, acting on one of the inputs of the trigger 13, translates the latter into a state in which the signal appears at the first input of the logic element 21. The duration of the transformed control signal is automatically set and varies in steps, age by n times (where P1, 2, 3 ...) by block 3 of the conversion scale, the outputs of which are connected to the control inputs of logic elements AND 15. The second inputs of logic elements AND 20 and 21 receive time stamps from the generator 18. If the student is uet pulse exactly corresponding to nt, t. e. signals with the output of the block 17 and 12 are equal, the outputs of the AND gates 20 and 21 sformiruyuts same duration signals which are input to the comparison unit 22. The comparison unit 22 is designed in such a way that with equal signals at its input from the output, the time stamps are not removed.

If the learner generates a pulse whose duration is shorter, then the signal from driver 17 stops earlier than the control signal from the output of block 12. There will be no signal at the output of the logic element AND 20, and time stamps will arrive at the output of the logic element AND 21 which are output from the logic element AND 25 of the comparator unit 22 are fed to the input of the reversible counter 29. The error value is counted by the counter 29 and simultaneously in parallel code is rewritten on the display of the information display unit 31.

If the learner generates a pulse, the duration of which is longer, then the control signal from the output of the flip-flop 13 stops before the signal from the driver 17 pulses. There will be no signal at the output of the logic element AND 21, but time stamps will still be received from the output of the logic element 20, which, having passed through the comparison block 22, go to the reversing counter 29, and are also displayed as an error on the display of the block 31. The magnitude of the error is judged on the degree of learning of the mastering skill of the radio telegraphist.

If the amount of student error exceeds a predetermined rate, then the reversible counter 29 overflows. The impulse from the overflow output of counter 29 arriving at the installation O of the block 3 of the conversion scale installation sets it to its initial position, and the impulse received on the display of the information display unit 31 draws the inscription "I cycle and flashes" II cycle, which is a warning to the student about increased attention, since he made a significant amount of mistakes. The incoming pulse in the counter 30 of the repeated cycle will record one.

The student starts the second second cycle, similar to the first cycle described. If the reversible counter 29 overflows again, the pulse from the overflow output overflows the repeat-cycle counter 30, the pulse from which is highlighted on the display of the information display section 31 End of Work. The elements and units of the simulator are then set to their initial state. It testifies

that the trainee did not cope with the task.

Each odd pressing of key 4 provides a transition to the first mode of block 2 of the operation mode and a transition to the next position of the block 3 of the conversion scale setting, highlighting the transformation ratio n on the student console and listening to the duration T of the control signal.

Each even pressing of the key 4 provides a transition to the second mode of the block 2 operating modes, playback of the transformed signal in accordance with the highlighted transformation ratio and control over its length; 5.

The use of the invention makes it possible to increase the efficiency of the training apparatus by reducing errors by performing a repeated cycle.

Claims (1)

Invention Formula A radio telegraph simulator containing a radio telegraph recorder connected to a duration conversion unit signals, through a single pulse generator — with a prohibition logic block and through a pulse shaper — with a logic information conversion unit, which is connected to the comparison unit and a time stamp generator, via a prohibition logic unit with an electroacoustic conversion unit and a pulse shaper, and an information display unit, characterized in that it has a reversible counter, a repeat cycle counter, and a frequency divider to increase the efficiency of the exercise, and the output of the comparison unit is connected to the input reversible counter, the outputs of which are directly and via a re-cycle counter connected to the inputs of the information display unit, and the output of the generator of single pulses through a frequency divider is connected to the control Wireless remote controller. Sources of information taken into account in the examination 1. USSR USSR Author's Certificate for Application No. 2768783 / 18-12, 17.05.79.