SU1213497A1 - Device for work-performance selection of radiotelegraph operators - Google Patents

Description

the input is connected to the output of the second element I, the first input of which is connected to the second output of the shift register connected to the second input of the third prohibition element,

The invention relates to automation and computing, in particular to devices for the study of an auditory analyzer, and can be used to determine the suitability of subjects for radio telegraph technician.

The purpose of the invention is to expand the didactic capabilities of the device to improve the quality of the selection of persons for training in speed telegraph-telegraphists by defining the interval of discreteness threshold time recognition of intermittent tonal sound signals.

FIG. 1 shows the structure of the device; in fig. 2 - time diagrams that show his work.

The device for professional selection of wireless telegraphs contains a low frequency generator of 50 Hz, a block of 2 dividers, allowing the receiver to receive pulses of 20, 40, 60, 80 and 100, 120 ms duration, a block of 3 elements AND, a ring shift register 4, a multi-input element OR 5 , inverter 6, control unit 7, information presentation unit 8 (sound stimuli), comparison unit 9, operator remote JO, registration unit 11 (correct answers), trigger 12, short impulse generator 13, counter 14 tenth signal output the counter appears overflow pulse), delay element 15, SH element 16 and indicator 17 (the test is completed).

Divider 2 contains the first, second and third dividers 18-20 by two, divider 21 by three and divider 22 by five.

The block of 3 elements And consists of the first - the sixth elements 23-28 And

the first and second inputs of the fourth OR element and the second inputs of the second AND third AND elements are the first inputs of the block, and the second input of the shift register is a speed input of the block.

five

The control unit 7 comprises a counter 29 (the capacity-counter is equal to two), prohibition elements 30 and 31, triggers 32-34, AND 35, the OR element 36 and the delay element 37. .

. Block 8 has a generator 38 (audio frequency) key 39 and electro-acoustic transducer 40,

Block 9 contains the shift register 41, the elements And 42 and 43, the element of the ban 44, the elements OR 45 and 46 and the element 47 delay.

The operator’s panel 10 includes the Start button 48f, the 49 1 1 button and the 50 2 button (1 and 2 are the number of distinct pulses).

Register 4 and indicator 17 are combined in the distributor 51 Pulses, and the counter 14 and the element 15 - in the counter 52.

When the power is turned on, the And logger and the J4 counter, registers 41 and 4 (LED 17 are lit) are set to the initial state, the triggers 12 and 34 are in the zero position, Then turn on the generators 1 and 38.

The subject presses the Start button 48 on the remote control unit 10. The pulse from the output of the button 48 through the OR element 16 enters the input of register 4 and transfers the latter from the seventh position (indicator 17 goes out) j to the first, ensuring the supply of a single potential from the first output of register 4 to one input element 28, to the other input of which pulses are received from the output of divider 20 (the duration of the pulses and the pauses between them are 120 ms).

These pulses from the output of the element 28 will pass through the element 5 (Fig. 2a, 6) to the information input of the element 30 and the input of the counter 29.

Let at one output of the trigger 32 zero potential (Fig. 2f), i.e. a zero is applied to the prohibiting input of element 30, then the first pulse from the output of element 30 will go to one input of element OR 36 (Fig. 2b). At the same time, the pulses from the output of the element OR 5 arrive at the input of the inverter 6. The zero output from the output of the inverter 6 applied to the other input of the element 35, to another input of which, for example, the unit potential from the output of the trigger 33 (FIG. 2d) | It does not change the trigger 34, since the output of the element And 35 will be zero potential. A pause following the first pulse will provide an output at the output of the inverter 6 of a single potential, which, having passed through the element 35, will go to the information input of the element 31, translate the Det trigger 34 into a single state (Fig. 23) and give a positive the potential at the input of the element OR 36. When a second pulse arrives from the output of element 5, the latter will also pass to element 36 (FIG. 2b), at the output of element 36 a signal is sent — one pulse (FIG. 2e). This pulse goes to the control input of the key 39, to the information input of which the tone frequency is supplied from the output of the generator 38. The sound image of the signal through the electro-acoustic transducer 40 will be presented to the subject. At the same time, this signal will go to the single input of the trigger 12, ensuring the transfer of the latter to a single state, and to the register 41 of block 9. A single potential supplied from the output of the trigger 12 to the input of the former 13 will provide the output at the output of the last short pulse. This pulse will go to counter 14 and record the first cycle signal for discrimination. A pause following the second impulse translates trigger 34 to the zero position (Fig. 23).

The subject, after listening to the signal, determines from how many (one or two) tonal sound parcels it consists of. If the subject believes that the listening signal is one package (solid signal

213497

then pushes button 49. The pulse from the output of button 49 goes to one input of element I 42, to the other input of which a single potential is applied from the output of register 41, and through element 44, to the prohibiting input of which receives zero potential from the output of register 41 (since one pulse will go to register 41), to the input of the element OR 45. From the output of the element OR 45, the pulse will go to block 11, register and record the correct answer. At the same time, the impulse from the exit of the button 49 through the element 46 will go to the element 37 and, delayed by the time required for the accurate operation of block 9, will go to

ten

15

input of the installation of register 41, transfer the last to the initial state ..

At the same time, the third impulse arrives at block 7 (FIGS. 2a, 6). At the input of the counter 29 in Wits, an overflow pulse (Fig. 2g), which, entering the trigger 32, will change its state (at the first output 1, at the second O), applying to the inhibit inputs of the elements 30 and 31 a single potential providing a pause between pulses, which is equal to two pulses. The state of the trigger 33 does not change. At the same time, the overflow pulse will return the trigger 12. to the zero state and, after passing through the element 37, set the counter 29 to the initial position.

Upon receipt of the fifth pulse from the output of the element OR 5, the trigger 32 again changes its state (on the first output 0 on the second 1).

A single potential from the output of the trigger 32 goes to the input of the trigger 33. The trigger 33 changes its state, i.e. at its output, a potential with zero potential, which prevents the arrival of pulses from the output of inverter 6 to the input of the trigger 34, L - and sixth pulses, without overlap, from the output of the OR element 36, goes to the input of block 8 and the subject

For distinguishing, a signal from two parcels will be presented.

Depending on the state of the flip-flops 32 (Fig. 2h) and 33 (Fig. 2k), either a signal from two packages (Fig. 2) or a signal from one package (Fig. 2e) as well as two pulse (Fig. 2i). Therefore, on exit.

Block 7, signals consisting of one or two parcels appear. At each signal presentation, the subject must determine how many (one or two) of the packages he is in, and accordingly press the button 49 or 50,

After ten signals are presented, the device proceeds to the second cycle, the duration of the interval between pulses and the duration of the pulses is 100 ms, and then to the third, fourth, fifth and sixth cycles with a pulse duration and a gap between two pulses equal to 80, 60, 40 and 20 ms, respectively. In this case, the elements of the device work as described above.

According to the number of correct answers, in accordance with the methodology, the degree of suitability of the subjects for training in a radio telegrapher (in particular, a speeding telegraph operator) is determined.

The use of the invention in radio telegraph selection devices permits the identification of persons having a discrete interval, i.e. the late time threshold for intermittent tonal sound signals, not exceeding 20-40 ms, which allows these subjects to study at a highly qualified radio telegrapher (class 1) and to further improve their speed reception skills. If the interval of discreteness does not exceed 60-80 ms, then the test students can achieve the first class qualification, if they do not exceed 100-120 ms, then the second, third class, and if the interval of discreteness is more than 120 ms, then the training of a wireless telegraph operator is impractical.

Dividing into groups by discrete intervals reduces the material costs of training by preventing people who are not able to attain the speed of hearing the Morse code signs, at least the third class, from learning, and also ending the work of radio telegraphists, increasing the speed of hearing which has dropped dramatically.

FIG.

Editor N. Gunko

Compiled by A. Karlov

Tehred S. Migunova Proofreader A.T.

Order 784/59 Circulation A56 Subscription VNIIPI USSR State Committee

for inventions and discoveries P3035, Moscow, Zh-35, Raushsk nab, 4/5

Branch 1ShP Patent, Uzhgorod, st. Design,

Claims (3)

1. DEVICE FOR PROFESSIONAL SELECTION OF RADIO TELEGRAPHERS, comprising a generator connected to the input of the divider unit, series-connected control unit and information presentation unit, series-connected operator panel, comparison unit and registration unit, wherein the first output of the control unit is connected to the second input of the comparison unit, and two OR elements, characterized in that, in order to expand the didactic capabilities of the device, the first trigger, pulse shaper, is introduced in series s and the first counter, the output of which is connected to the first input of the first OR element, the pulse distributor and the block of AND elements connected in series, the second input of which is connected to the output of the divider unit, and the output to the input of the second OR element, and an inverter whose output is connected to the first the input of the control unit, and the input with the output of the second OR element connected to the second input of the control unit, the first and second outputs of which are connected respectively to the first and second inputs of the first trigger, the second output of the operator console The key to the second input of the first OR gate whose output is connected to the input of the pulse distributor. 2. The device according to π. 1, characterized in that the control unit comprises a first inhibit element, a first delay element and a second counter, a second trigger, a third trigger, a first AND element, a second inhibit element, a fourth trigger and a third OR element, the output of which is the first block output, and the second input is connected to the output of the first inhibit element, the first input of which is connected to the second output of the second trigger connected to the second input of the second inhibit element, the second input of the first element And is the first input of the block ka, and the first input of the second counter and a second input of the first element of the ban - the second input unit, the second counter output is the output unit and connected to the input of the first delay element whose output is connected to a second input of the second counter. 3. The device according to p. ^ Characterized in that the comparison unit contains a second AND element and a fourth OR element in series, a second delay element. the shift register, the third AND element, the third inhibit element and the fifth OR element *, the output of which is the output of the block, and the second input is connected to the output of the second AND element, the first input of which is connected to the second output of the shift register connected to the second input of the third inhibit element, the first and second inputs of the fourth OR element and the second inputs of the second AND third AND elements are the first inputs of the block, and the second input of the shift register is the first input of the block. "