SU1709376A1 - Apparatus to asses the skill level of the operators - Google Patents

Abstract

The invention relates to automation and can be used in determining the professional suitability of operators. The purpose of the invention is to improve the accuracy of the device, increasing the objectivity of the assessment by eliminating the possibility of guessing characters. The device contains a generator 1 (clock pulses), a pulse distributor 2, a Morse code shaper 3, a comparison unit 4, an operator console 5, a pseudo-random sequence of pulses forming unit 6, a unit 1 for presenting audio information (characters), a recording unit 8 (and evaluating results ), counter 9 cycles and switch 10. The invention randomly feeds the same number of Morse code characters to each of the headphones (left and right) in one cycle, eliminates the possibility of guessing (there is no cycling in occurrence signal) and reduces the time of checking, increasing the objectivity results. 5 il. SLS

Description

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FIG. one

The invention relates to automation and can be used in determining the professional suitability of operators.

A device for professional selection of radio telegraphs is known, containing the operator's console, the response analysis unit, the delayed response determination unit, the test program setting unit, the recording unit, the pulse generator, the pulse distributor, the sound generator, the key, the amplifier, and the electroacoustic converter.

This device allows the selection of operators for hearing sensitivity, distinguishing or not distinguishing the tone of a signal under conditions of limited time, but does not make it possible to evaluate the suitability of the operator for conducting radio reception in two-channel warning systems.

Closest to the invention is a device for the professional selection of radio telegraphists, which contains a clock pulse generator, the first output of which is connected to the trigger input, operator console, clock counter and the first delay element, and the second output is connected to the register shift information, operation mode and resolution inputs the records of which are connected respectively to the outputs of the first and second delay elements connected in parallel, and the information inputs to the corresponding outputs of the program setting block, the moves of which are connected to the corresponding outputs of the decoder connected to the corresponding inputs of the first group of the comparison unit, the inputs of the second group of which are connected to the information outputs of the operator’s console, and the output to the first inputs of the first and second elements I, whose output is connected to the corresponding counters, and the second inputs connected to the control inputs of the corresponding keys and connected respectively to the direct and inverse outputs of the trigger; the outputs of the keys are connected to the corresponding electroacoustic ii converter, and data inputs - a yield of a sound generator whose input is connected to an output register which outputs clocks with respective counter soediieny decoder inputs.

However, in this device, the signals | Morse code signs) are sent to the right and right acoustic analyzer cyclically, repeated in one, i.e. each ear distinguishes only two characters (half of the signs presented). This reduces the objectivity (accuracy) of the assessment, stimulates the guessing of characters and leads to the tightening of tests.

The aim of the invention is to improve the accuracy of the device with an increase in the objectivity of the assessment by eliminating the possibility of guessing characters by randomly presenting signals to each (right and left) auditory analyzer (ear)

while reducing the time for testing (verification).

The goal is achieved by the fact that a device for professional selection of operators, containing a pulse distributor, whose outputs are connected to the corresponding inputs of the first group of the comparison unit and the corresponding information inputs of the Morse code generator, and the input to the first input of the operator console, which controls the input of the driver Morse codes and the first output of the first generator, the second output of which is connected to the information input of the presentation unit

audio information, the inputs of the second group of the comparison unit are connected to the corresponding. The operator’s output and the output to the information input of the registration unit were entered to the cycle counter, a switch whose inputs are connected to the corresponding outputs of the cycle counter, and the output to the second input of the operator’s console, trigger, second generator, first prohibition element, information and control inputs connected respectively to the first output of the first generator and the output of the switch, a ring counter, the input of which is connected to the output of the first prohibition element and the input of the second generator, and the output from the input mi

the cycle counter and the trigger, the first and second elements And, the first inputs of which are connected to the corresponding outputs of the trigger, and the second inputs to the output of the second generator, the first and second inverters, the EXCLUSIVE OR element, the first and second inputs of which are connected respectively to the output of the first element And and the output of the first inverter, whose input is connected to the output of the second element I, and the second prohibition element, the output of which is connected to the first control inputs of the recording units and the presentation of the audio information, information in the stroke is with the output of the EXCLUSIVE OR element and the input of the second inverter, and the control input is with the output of the second inverter and the second control inputs of the recording and presentation units of the sound information.

Fig, 1 shows a block diagram of the device; Fig. 2 is a functional diagram of a pseudo-random pulse train formation unit; Fig. 3 is the same, the unit for presentation of audio information; in FIG. 4, the same registration block; Fig. 5 shows timing diagrams for the operation of the device.

The device for professional selection of operators contains a clock pulse generator 1, a pulse distributor 2, a Morse code generator 3. unit 4 comparison, operator console 5, unit 6 for the formation of a pseudo-random sequence (P SP) of pulses, unit 7 for presentation of audio information, unit 8 for recording, counter 9 cycles, switch 10, and also (figure 2) ring counter 11 With counting cycle fifteen pulses, trigger 12, generator 13 (PSP is four-bit), first and second elements 1/1 14 and 15, first and second inverters 16 and 17 (elements NOT), first and second elements 18 and 19 of the prohibition and element EXCLUSIVE OR 20.,

Unit 7 contains a sound generator 21, the first and second keys 22 and 23 and the first (right) and second (left) headphones 24 and 25.

Block 8 contains the first and second elements And 26 and 27, the first and second counters .28 and 29.

The device works as follows.

Turn on the power. The memory elements of the device are reset. At the first output of generator 1, an impulse appears, which is fed to the input of generator 3, preparing circuits for forming and writing the characters of Morse code preset by switches (not shown) at the input of distributor 2, causing the appearance of a logical unit at its first output, which is applied to the inputs of block 4 and driver 3, providing the formation and recording in the latter of the corresponding sign of the Morse code in the form of a binary formalized number, and on the information input of element 18, to the control input of which a zero potential is supplied from the output of the switch 10. An impulse from the output of the element 18 (Fig. 2b) is fed to the input of the counter 11, which fixes the arrival of the first clock pulse, and to the input of the generator 13, ensuring the appearance at its output of a zero potential (pulse) of a pseudo-random sequence ( Fig. 56), which is applied to the inputs of the AND elements 14 and 15.

Suppose that at the first (direct) output of the trigger 12 there is a single potential (Fig. 5a), then the outputs of the elements 14 and 15 have zero potentials. At the output of the inverter 16 of the torus there is a single potential, i.e. the inputs of the element EXCLUSIVE OR 20 are applied to zero and unit potentials. At the output of element 20, there is a unit potential that is fed to the input of the inverter 17 and to the information input of the element 19. The zero potential from the output of the inverter 17. applied to the control input of element 19, provides the appearance of a single potential (logical unit) at its output, which is applied to the control input of the key 23, preparing the circuit for passing the mark of the Morse code from the output of the generator 21, and to the input of the And 26 element, preparing the counting circuit of correctly recognized characters.

The pulses from the second output of the generator 1 to the shift input of the imaging unit 3, extend the binary combination recorded in it,

5 showing the structure of the sign (dash, point 1, the pause between the elements of the sign - O), which, acting on the input of the generator 21. converts the code (single) parcels into tones of the sign-.

0 morse code. The sign of the Morse code from the output of the generator 21 through the key 22 enters the electro-acoustic converter of the left head phone 24.

The subject, having listened to the sign, identifies

5 him.

If the sign is recognized correctly, then when you press the corresponding button (not shown) on the console 5, the output of block 4 is a pulse that arrives at the inputs of elements And 26 and 27 ..

Since there is a single potential at the other input of the AND 26 element, an impulse appears at its output, which is fed to the input of the counter 28 and captures the correct wipe.

When a single potential (PSP pulse) arrives at the output of the generator 13, a single potential appears at the output of AND 14, and a zero potential at the output of AND 15 (Fig. 56). At the output of the inverter 16 - a single potential, i.e. Both inputs of the EXCLUSIVE element OR OR 20 are unit potentials which form zero at its output.

5 Potential-l. The zero potential is applied to the information input of the element 19 and to the input of the inverter 17, ensuring the appearance at the output of the last single potential (the second output of block 6), which is fed to the control input of the key 23, preparing

chain to pass the mark of the Morse code, and the input element And 27, preparing the circuit for the counting of correctly identified characters. The arrival of pulses from the second output of the generator 1 to the shifting input of the imaging unit 3 ensures the appearance of Morse code sign tonal signals at the output of the generator 21, which through the key 23 goes to the head phone 25 (right),

If in this case the sign is recognized correctly, then when the button on the remote control 5 is pressed, the output of element 27 appears to be a pulse, which enters the input of counter 29 and fixes the correct answer.

If the sign is incorrectly recognized and a button is pressed on the remote control 5, there is no pulse at the output of block 4, i.e. wrong answer is not fixed.

The arrival of the sixteenth clock pulse at the information input of the element 18 causes the appearance at the output of the counter 11 of a single pulse (Fig. 5d), which throws the trigger 12 (Fig. BB) to the second position (at the inverse output, the unit potential), i.e. the pseudo-random sequence of pulses from the output of the generator 13 is presented to the examinee inverted (Fig. 56).

At the same time the pulse from the output of the counter 11 is fed to the input of the counter 9, fixing the first half cycle.

If the switch 10 is set in the first position (the cycle is thirty symbol representations), then the appearance after the second half cycle at the output of the unit pulse counter 11 (Fig.bg) provides a single pulse (potential) from the first output of the counter 9 to the control input element 18, which stops the supply of clock pulses from generator 1 to inputs of generator 13 and counter 11, and the End (not shown) of console 5 filed on a banner warns the subject about reading from meters 28 and 29.

According to the number of recognized (unidentified) marks, they are judged on the suitability of operators to conduct auditory radio reception in two-channel warning systems.

Retesting is performed by turning the power off and then on.

The use of the invention in devices for determining the professional suitability of operators improves the accuracy of the device and the objectivity of radio telegraphists to auditory reception in two-channel warning systems, since it eliminates the possibility of guessing signs when tested for random (pseudo-random) presentation of signals, the number of which is in each cycle for the left and the right hearing analyzers remain the same. At the same time, the manager has the opportunity to reduce the check to the minimum (1 cycle) or increase to the maximum (5 cycles).

This device can be used for training (switch 10 in the zero position), which allows determining the recency in two-channel warning systems.

Claims (1)

Invention Formula A device for professional selection of operators, containing a pulse distributor, the outputs of which are connected to the corresponding inputs the first group of the comparison block and with the corresponding information inputs of the Morse code generator, and the input with the first input of the operator’s console, the control input of the Morse code generator and the first output of the first generator, the second output of which is connected to the information input of the audio information presentation unit, the inputs of the second group of the comparison unit are connected to the corresponding outputs of the operator console, and the information input of the recording unit, characterized in that, in order to improve the accuracy of the device, entered loop counter, switch, inputs which are connected to the corresponding outputs of the cycle counter, and the output to the second input of the operator’s console, a trigger, a second generator, the first prohibition element, whose information and control inputs are connected respectively to the first output of the first generator and the switch output, a ring counter whose input is connected to the output of the first element of the prohibition and the input of the second generator, and output - with the inputs of the cycle counter and the trigger, the first and second elements And, the first inputs of which are connected to the corresponding outputs of the trigger, and the second inputs - to the output of the second generator, the first and second inverters, the element EXCLUSIVE OR, the first and second inputs of which are connected respectively to the outputs of the first element And the first inverter, the input of which is connected to the output of the second element And, and the second prohibition element, the output of which is connected by the First control inputs of the registration units and the presentation of audio information, the information input to the output of the EXCLUSIVE OR element and the input of the second inverter, and the control input to the output of the second inverter and the second control inputs of the blocks registration and presentation of audio information.