SU1660026A2 - Device for radiotelegraph operator proficiency testing - Google Patents

Description

The invention relates to teaching devices, may find application in controlling the transmission of text of radiograms of a group of trainees and is an improvement of the invention according to ed. Ν? 1538181.

The aim of the invention is to improve the accuracy of control.

Figure 1 shows the structural electrical diagram of the device; figure 2 is a diagram of a clock generator; Fig. 3 diagram of a comparison unit; figure 4 - diagram of the shaper control pulses; figure 5 - diagram of the operator panel; Fig.6 block diagram of the synchronization; 7 is a diagram of a block input standards; on Fig is a block diagram of the formation; Fig.9 is a diagram of a signaling unit; in FIG. 10 -. Circuit block counters; figure 11 is a diagram of the switch consoles.

A device for monitoring the professional suitability of wireless telegraph operators contains I-1 _t operator panels, where t is the number of seats in the class, 2 switch boards, comparison unit 3, 4 counters block, 5 standard input unit (Morse code generator), 6 clock pulses generator, 7 shaper control pulses, block 8 formation, blocks 9ι ~ 9t alarm, block 10 start and switch 11.

The clock generator 6 contains a dual-frequency generator 12 (adjustable) and a divider 13 into two.

Comparison block 3 contains register 14, AND elements 15ι-15η, where η is the maximum number 1 and ”0 in the sign, EXCLUSIVE OR elements 16ι-16 _η , multi-input OR elements 171-17p, OR element 18, prohibition element 19 and element 20 delays (delay time is equal to the sum of the response time of elements 15, 16 and 18).

Shaper 7 control pulses contains the first and second elements 21 and 22 of the ban, single-shot 23 and trigger 24.

The operator panel 1 contains a telegraph key 25, register 26, AND 27h-27p trigger elements 28, a synchronization unit 29, a pause highlighting unit 30, and the first and second elements And 31 and 32.

Block 29 synchronization contains a trigger 33, the first and second elements AND 34 and 35, the element OR 36 and the element 37 prohibition.

Block 5 input standards contains a counter-decoder (distributor) 38, switches 39- | —39к, where k is the number of different characters, encoder 40, register 41, element OR NOT 42, element 43 of the ban, the first and second elements 44 and 45 delays, AND element 46 and OR element 47.

The forming unit 8 comprises a shift register 48, an OR element 49, an ORINE 50 element, and a one-shot 51.

Signaling unit 9 comprises a trigger 52, first and second prohibition elements 53 and 54, and first and second LEDs 55 Late and 56 Early.

Block 4 of the counters contains 571-57 _t meters, elements 581 ~ 58 _t and 591-59 ™ prohibition and LEDs 601-60 _t and 611-61 _t .

The switch 2 remote controls contains an annular shifting register 62, the first, second and third multi-input elements OR 63-65.

The device operates as follows.

Preliminarily, in the generator 6 clock pulses, the frequency corresponding to the speed at which the wireless telegraphs are to transmit is set, and the switches 39 in the unit 5 for entering the standards show the sequence of presentation of the control characters of the Morse code in accordance with the text printed on the radiogram forms that are issued to each operator of the group. The switch 11 on the leader’s remote control is set to the On position by supplying the housing to the cathodes of the LEDs 55 and 56 of the signaling units 9.

Turn on the power. Triggers 24, 28 and 52 are set to zero.

At the command of the teacher, the signal from the output unit 10 start wireless telegraphs begin to transmit text. The pulse from the output of the start block 10 with a duration greater than the clock pulse for the time the generator 12 is turned on starts the generator 6 and is fed to the third input of the reference input block 5 - the first input of the And element 46. The first clock pulse from the second output of the generator 6 is fed to the second input of the input block 5 standards, passing through the second input of the AND element 46 and the OR element 47, enters the inputs of the delay element 44 and the counter decoder 38.

When you press the telegraph key 25 at the output of the console 1, a pulse-sign element appears, which from its second output goes to the 5-input of trigger 52 of alarm blocks 9, providing the output from the last unit potential to the control and information inputs of the ban elements 53 and 54 and information and control inputs of the corresponding elements '58 and 59 of the prohibition of block 4 counters. The pulse from the second output of the console 1 through the OR element 63 of the switch 2 is fed to the information input of the inhibitor element 21 of the shaper 7, to the control input of which there is a zero potential 5 al from the output of the trigger 24. The unit potential from the output of the inhibit element 21 is fed to the input of a single vibrator 23. A short pulse from the output of the one-shot 23 is fed to the first input of the trigger 24, transferring the latter to a single state, to the third inputs; register 62, switch 2, register 14 of comparison unit 3 and register 26 of consoles 1, setting them in the initial state, at the first input of trigger 28, providing a unit potential from its output to the second (control) input of the And 32 element, and to the input of the element And 35 block 29 synchronization, ensuring the supply of clock pulses from the third output of the generator 6 to the second input of the register 26.

The pulses from the outputs of the delay elements 44 and 45 and the counter-decoder 38 of the standard input unit 5 are carried out by pulling from its first output a code combination of a control character corresponding to the first character of the radiogram text, which, by means of clock pulses coming from the second output of the generator 6 through the information input of the element 43 of the prohibition of the unit 5 for entering standards, to the control input of which, when the sign is extended, a zero potential is supplied from the output of the OR-NOT 42 element, at a speed twice that of the radio telegraph ISTA is written into the register 14, the comparison unit 3. The single potential from the output of the trigger 24, applied to the control input of the inhibit element 21, will prevent the passage of the following sign elements to the input of the one-shot 23, and the acting on the control input of the inhibit element 22 will stop the arrival of clock pulses from the first output of the generator 6, the frequency of which is ten times higher than the frequency pulses from the second output to the shift input of the register 62 of the switch 2.

At the same time, the code combination from the outputs of the encoder 40 of the reference input unit 5 is supplied to the corresponding inputs of the register 48 of the forming unit 8, the first and second control inputs of which receive control pulses from the outputs of the delay elements 44 and 45, i.e. the same formalized binary number is recorded in the shift register 48 of the forming unit 8 as in the register 41 of the standard input unit 5. Reading information from the outputs of the shift register 48 is carried out by clock pulses supplied to the shift input of the register 48 from the third output of the generator 6, i.e. at a given baud rate.

When a code combination appears at the outputs of the register 48 at the output of the element

OR 49, a single potential appears, which is fed to the information and control inputs of the inhibit elements 53 and 54 of the alarm blocks 9 and to the control and information inputs of the inhibit elements 58 and 59 of the counter block 4.

When the operator transmits the sign element, formed by the telegraph key 25 of the console 1, are converted using the synchronization unit 29 into a code combination in which the dot corresponds to 1, dash - 111 ”, and the pause between the sign elements - 0, and, arriving at the first input of the register 26 , clock pulses supplied to its second input from the second output of the synchronization unit 29 are recorded in the register 26.

If the operator responds slowly, is late with the sign, then the unit potential from the output of the OR element 49 of the forming unit 8, received at the information input of the inhibit element 53, will light up the LED 55 Late, since the potential input of the inhibit element 53 receives zero potential from the output of the trigger 52 The burning of the LED 55 warns the operator of a delay in the transmission of a sign.

If the operator quickly responds, transmits the sign before the appearance of the control character, then the unit potential from the output of the trigger 52, applied to the information input of the inhibit element 54, will light up the LED 56 Early, since the potential input receives the zero potential from the output of the OR element 49 of the block 8 formation. The burning of LED 56 warns the operator to run ahead when transmitting a character.

Upon completion of the transmission of the sign by the operator, a pause pulse from the third output of the console 1 is fed to the P-input of trigger 52 of signaling unit 9, providing the output from the output of the last zero potential to the control and information inputs of the inhibit elements 53 and 54 and to the information and control inputs of the corresponding elements 58 and 59 prohibition block 4 counters.

The pulse from the third output of the console 1 through the OR element 64 of the switch 2 is fed to the first input (record) of the register 62, providing a record 1 in the first discharge, and to the second input of the trigger 24 of the shaper 7, transferring the latter to the zero state and ensuring the passage of clock pulses from the first the output of the generator 6, through the prohibition element 22, to the control input of which there is a zero potential from the output of the trigger 24, to the shift input of the register 62. 1, recorded in the register 62,

Ί with the incoming clock frequency is sequentially fed to the information inputs of the elements And 31 remotes 1.

If a slow-responding operator transmitted a sign at a given speed or slower, then the unit potential from the output of trigger 52 will go to the information input of the inhibit element 58, the control input of which will send zero potential from the output of the OR element 49, and the LED 60 will light up. This operator lags behind in block 4 counters.

If the fast-responding operator passes the sign at a given speed or faster, then the zero potential from the output of the trigger 52 will go to the control input of the inhibit element 59, the information input of which will be the unit potential from the output of the OR element 49, and the LED 61 will light up Ahead of this operator in block 4 counters.

Therefore, the beginning of the transfer of the mark is controlled by the operator, the end of the transfer of the mark by the head.

If the operator works (transmits) at a pace with a predetermined speed and has entered the transmission rhythm, then the operator and the head are not lit by LEDs.

If the operator, for example, working behind the пуль-th console 1 (where I is any integer from 1 to t), transmitted the first character, then the pause pulse from the output of the pause highlighting unit 30 close to the control input of the And 31 element will ensure the passage of the signal from 1 the output of the register 62 of the switch 2 through the information input of the element And 31 to the second inputs of the elements And 27 and will read information from the outputs of the register 26 through the element OR 17 of the block 3 comparison, to the second inputs of the elements EXCLUSIVE OR 16. Simultaneously, the pulse from the output of the element And 31 will arrive through the item LEE 2 switch 65 to the second inputs of AND gates 15, reads information from the outputs of the register 14 to the first inputs of the exclusive OR element and to the input 20 of the delay element ..

If the operator transmitted the character correctly, then the code combinations recorded in registers 26 and 14 will be identical; at the output of the OR element 18, the zero potential applied to the control input of the prohibition element 19 will not change. The delayed pulse from the output of the delay element 20 will pass through the element 19 of the ban on the information input of the And 32 element. Unit potentials are supplied from the output of the And 31 element and the trigger 28. The pulse from its output will go to the input of the counter 57 of the counter block, fixing the correct answer, and to the second trigger input 28, ensuring the supply of zero potential from the output of the latter to the second control input of the And 32 element, which prevents writing the correct answers to the counter 57! with repeated arrivals of the unit potential with bglo register output 62.

If the operator made a mistake when transmitting the sign, then the code combinations recorded in the registers 26 and 14 will be different, a single pulse will appear at the output of the OR element 18, which is applied to the control input of the inhibit element 19, preventing the pulse from passing from the output of the delay element 20, t .e. incorrect (erroneous) answers are not recorded.

If one of the operators transmits with great slowdown or much faster in comparison with the set speed, losing speed and rhythm, then on the leader’s remote control (in block 4 counters) the LEDs 58 and 59 related to this operator blink. The head identifies such operators, finds out the reason for the lag (lead) and takes measures to eliminate them.

When operators transmit elements of subsequent characters of the Morse code, the work of blocks is carried out similarly to that described above. After the transmission of radiograms, the teacher determines the degree of preparedness of the operators according to the readings of counters 57 and the results of visual analysis.

The use of the invention allows, according to the readings of counters 57 and the behavior of LEDs 58 and 59 on the supervisor’s panel, to more objectively evaluate each operator and form small groups with approximately the same abilities of trainees, to apply individual methods to improve the quality of training and reduce the time for training radiotelegraphs.

In addition, the invention makes it possible to determine the time of entry into the pace and rhythm of the trainee with both the alarm turned on and off by the operator, providing an opportunity to judge the adaptation time (entering the pace and rhythm) and the degree of its decrease, and also provides a sense of speed.

Claims (3)

Forum of the invention • ^ .. Device for monitoring the professional suitability of wireless telegraphists by ed. No. 1538181. Characterized in that, in order to improve the accuracy of control, a start block, a switch, alarm blocks and a formation block are introduced into it, the first, second and third 1660026 'inputs and the first output of which are connected respectively to the third, fourth and fifth outputs and the second input of the input unit of standards, the second output of the clock generator is connected to the fourth input of the forming unit, the second output of which is connected to the first additional input of the counter block and to the first inputs of the blocks alarms, the second and third inputs of each of which are 10 connected respectively with the first and third outputs of the corresponding operator console, the first and second outputs of the alarm units are connected respectively respectively, to the second additional 15 inputs of the counter block and the input of the switch, and the output of the trigger block is connected to the input of the clock pulse generator and the third input of the reference input block. 2. The device according to claim 1, characterized in that the formation unit contains a shift register, the outputs of which are connected to the inputs of the OR or NOR element, the output of which is connected to the input of the one-shot, the output of which is the first output of the formation unit, the second the output, the first, second, third, and fourth inputs of which are respectively the output of the OR element and the inputs of the shift register. 3. The device according to claim 1, about l and m ayuyu es that. that each signaling unit contains a trigger, the output of which is connected to the control input of the first and the information input of the second inhibit elements, the control input of which and the information input of the first inhibit element are combined, the outputs of the first and second elem; The barriers are connected to the anodes of the LEDs, the cathodes of which are combined and are the second output of the alarm unit, the first input, the first, second and third inputs of which are the trigger output, the information input of the first ban element, the first and second inputs of the trigger. Figure 2 Fig.Z Figure 5 6 Fi. 7 o g 1