SU1564679A1 - Device for professional selection of radio telegraph operators - Google Patents

Abstract

The invention relates to automation and computing and can be used in the professional selection of radio telegraph operators. The purpose of the invention is to increase the speed of the device. The device contains a pulse generator 1, a pulse distributor 2, a Morse code shaper 3, a key 4, a generator 5 (audio frequency), a voltage divider 6, an electroacoustic converter 7, a trainer console 8, a comparison unit 9, a response result averaging block 10, a reversible counter 11, the decoder 12 and the indicator 13. By introducing the result response averaging unit 10, the tests are terminated when the probability P of the identification is 0.5, and the time for conducting the tests is reduced. 1 il.

Description

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(21) 4483143 / 24-24 (22) 16.06.88 (46) 15.05.90. Bul Number 18 (72) V.D.Kryukov and N.I. Kudr seam

(53) 681.3.071 (088.8)

(56) USSR Copyright Certificate No. 1267465, cl. G 09 B 19/26, 1984.

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(54) DEVICE FOR PROFESSIONAL SELECTION OF RADIO TELEGRAPHERS

(57) The invention relates to automation and computer technology and can be used in the professional selection of radio telegraphers. The purpose of the invention is to increase the speed

devices. The device contains a pulse generator 1, a pulse distributor 2, a Morse code shaper 3, a key 4, an audio frequency generator 5, a voltage divider 6, an electroacoustic converter 7, a trainer 8, a comparison unit 9, a response result averaging unit 10, a reversible counter 11, a decoder 12 and an indicator 13. By introducing a unit 10 averaging the result of the answers, tests are stopped when the probability of identification P is reached equal to 0.5, and the time for conducting research is reduced. 1 il.

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About SI

This invention relates to the field of automation and computing.

can be used for conducting and professional selection of operators.

The aim of the invention is to increase the speed of the device by reducing the time spent on research. The drawing shows the functional diagram of the device.

The device for professional selection of wireless telegraphists includes a generator 1 (pulses), a distributor 2 pulses, a Morse code shaper 3, a key 4, a generator 5 (audio frequency), a voltage divider 6, an electroacoustic converter 7, a student console 8, a comparison unit 9, block 10 averaging the result of the responses, reversible counter 11, decoder 12, indicator 13.

Shaper 3 contains switches 11, encoder 15, register 16, delay elements 17 and 18. I Remote 8 includes triggers 19 and switches 20.

Unit 9 has the elements BANKS 21, 42 and inverters 23.

Unit 10 contains counters 24 and 25 of the Right and correct answers), switches 26 and 27, the element And 28, the elements 29, 30 of the delay and the elements of fs 31, 32.

The device works as follows.

Pre-switches 26 i} 27 of block 10 set, for example, the fifth position with a capacity of Counters 24 and 25 equal to ten,,. Ensuring the likelihood of identification (non-identification), 5, i.e. in this case, the Subject will move closer to his or her lower YEAR hearing threshold.

When the power is turned on at one output of the generator 1, a pulse appears that acts on the inputs of the flip-flops 19, sets the last to one (zero) state, and enters the input of the distributor 2, causing a call on its first output 1 This 1 through the inverter 231 of block 9 is applied to the control input of the BAN element 221 preparing the correct response circuit, and to the second input of the BAN 211 element, preparing the wrong answer circuit, and through the switch 141 - to the input of the encoder 15, providing the output on its outputs

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the corresponding sign of the Morse code in the form of a binary formalized number.

At the same time, this pulse through the element 17 of the imaging unit 3 is fed to one input of the register 16, has transferred the latter to the parallel recording mode, and has passed through the element

18 enters the other input of register 16, ensuring parallel recording

the binary number from the outputs of the encoder 15 is entered into it. When pulses are output from the generator 1 to the input of register 16, a binary combination is advanced that displays the structure of the telegraph sign (a dash is three 1, a dot is one 1, the pause between elements and characters is O), which from the output of the register 16 is fed to the input key 4, which converts the tone frequency generated by the generator 5, in the Morse code tones

The subject, having heard the sign of the Morse code, identifies it and presses the corresponding switch 20, on the label of which the letter identified by it, for example A.

If the subject correctly identified the sign, then when the switch 20 is pressed, the unit potential from the trigger output

19, arrives at the information inputs of the elements of the PROHIBITION 21, and 22, to the other inputs of which, from the first output of the distributor 2, the single and zero potentials are received, respectively.

Thus, the unit potential of the correct answer, the passage of which is allowed, from the output of the element BANGE 22 enters the input of the counter 25 of the block 10, fixing the correct answer.

When the next pulse arrives from the output of the generator 1, the flip-flops 19 are reset, 1 appears, for example, at the fourth output of the distributor 2 and through the switch 14 on the encoder 15, forming the next character, for example 1. The operation of the device elements is similar to that described.

When reproducing the fifth correct answer, a single potential appears at the output of switch 27 of block 10, which is applied to one input of element 28. If the incorrect answers are missing or the number of correct answers prevails over incorrect answers, then at another input of element 28 zero potential. Next515

The correct answer will translate a single potential from the fifth output of the counter 25 to the sixth output. The tenth correct answer will cause the output of the overflow pulse at the output of the counter 25, which will go to the input of the element 30 and to the input of the direct account of the reversible counter 11, as a result of which the decoder 12 will change its state

the corresponding resistor in divider 6 to attenuate loudness when the next sign of the Morse code arrives at the input of the electroacoustic converter 7. The delayed pulse from the output of element 30, passed the elements OR 31, 32, will go to the zeroing inputs of the counters 24 and 25, setting them to the original condition.

Thus, during reception of signs, if they are correctly identified, the reproduction volume will decrease, approaching the individual hearing threshold of the subject in receiving telegraph signs.

If the subject incorrectly identified the sign, for example A, i.e. instead of the switch 20. pressed the switch 20, on the nameplate of which B11 is marked, the unit potential from the output of the trigger 19 goes to the first inputs of the BANNER elements 21d and 22a, the second inputs of which from the second output of the distributor 2 are supplied to zero and one potential, respectively. The unit potential of an incorrect response from the output of the element BANGE 21 is fed to the counting input of the counter 24, fixing the wrong answer.

The appearance of the same number of correct and incorrect answers indicates that the subject has reached the lower auditory threshold. In this case, at the appearance, for example, at the fifth output of the counter 25 of a single potential, for the next identification, for example, a single potential appears at the fifth exit of the counter 24, i.e. A single potential is applied to both inputs of the AND 28 element. The second potential received by the second will cause the appearance at the output of the element 28 of an impulse that enters the input of the generator 1, disconnecting the last, i.e. tests are terminated.

If the subject has crossed the border of the lower auditory threshold, then the number of incorrect answers will exceed the number of correct answers. Upon enrolment

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The tenth wrong answer at the output of the counter 24 of the VITS overflow pulse, which goes to the input of the element 29 and to the reverse counting input of the counter 11, as a result of which the decoder 12 changes its state, switching resistors in the divider 6 to increase the volume when the next character arrives morse code. The delayed pulse from the output of element 29 returns the counters 24 and 25 to the initial state.

Thus, in the process of recognition, the loudness of the signs adaptively approaches the auditory threshold of the subject and, upon reaching, the 5 tests are terminated. The indicator 13 displays the state of the reversible counter 11 and the decoder 12, according to which it is concluded that the operator is capable of receiving signs at a volume below nominal.

The use of the invention significantly increases the efficiency of the device in determining the professional suitability of operators, since the time to determine the lower hearing threshold of each person tested with this device is reduced by 25-30%.

Claims (1)

Invention Formula A device for professional selection of wireless telegraphists, containing a student console, the input of which is connected to the first output of the first generator, the input of the pulse distributor and the first input of the Morse code generator, and the outputs - with the corresponding inputs of the first group of the comparator, the inputs of the second group of which are connected to the corresponding outputs of the pulse distributor and to the corresponding inputs of the Morse code generator group, the second input of which is connected to the second output of the first i generator, and the output to the first the key input, the second key input is connected to the output of the second generator, and the output is connected to the control input of the frequency divider, the information inputs of which are connected to the corresponding outputs of the decoder, and the input of the electroacoustic converter, a reversible counter, the outputs of which are connected to the corresponding inputs a decoder and indicator, characterized in that, with the aim of 715646798 Increase the speed of the device, inputs - to the outputs of the first and second and he introduced two counters, two ne-elements OR, respectively, information switch, two delay elements, switching outputs to the corresponding d | va element OR and element I9 the first inputs of the first and second switch; the second inputs of which are connected to the steles, respectively, and the outputs by means of the first and second switch-complement - to the inputs t | spruce, respectively, and the output - summing and subtracting reversible the input of the first generator, the information counter and to the inputs respectively the axle inputs of the first and second counter, JQ of the first and second delay elements, The coils are connected to the corresponding output outputs of which are connected to the corresponding sections of the comparison unit, the installation inputs of the OR elements.