SU758236A1 - Trainer for radio telegraphysts - Google Patents

Description

The invention relates to simulators' and may find application for the training of wireless telegraphists.

A well-known simulator of wireless telegraphists containing an action unit associated with a signal determination unit and a signal mixing unit, one of the outputs of which is connected to one of the inputs of the action unit [1].

A disadvantage of the known simulator 10 is the low accuracy of the simulator.

To improve the accuracy of the simulator, the proposed trena-15 gers has a match node, a determination unit. critical parameters and a block for changing the evaluation criteria, while the other outputs of the signal mixing node through the coincidence node are connected to the first 20 inputs of the block for changing the evaluation criteria, the second input of which is connected to one of the outputs of the impact node, the output of the block for changing the evaluation criteria through the block for determining 25 parameters are connected to the Impact Node, one of the outputs of which is connected to the inputs of the coincidence node.

The drawing shows the proposed simulator. ^! thirty

It has a remote control 1 operator, object 2 training, detector 3 useful signals; block 4 determining the area of useful signals, block 5 for determining the deviation of the frequency characteristics of the signal, block 6 for determining the deviation of the amplitude characteristics of the signal, block 7 for setting the level of preparedness of the operator, block 8 for changing the signal-to-noise ratio, · mixer 9 frequency signals, block 10 for changing the parameter of fading sig'nala, impact switch 11, isolation unit 12, total signal mixer 13, operator critical parameter determination unit 14, evaluation criteria changing unit 15, and matching blocks 16, 17 and 18 s.

The impact node contains an operator console 1, a training object 2, a unit 7 for setting an operator preparedness level, and an impact switch 11.

The signal determination unit has a useful signal detector 3, a useful signal area determining unit 4, a signal frequency deviation determining unit 5 and a signal amplitude deviation determining unit 6.

758,236 '

The signal mixing unit comprises a signal-to-noise parameter ratio changing unit 8, a frequency signal mixer 9, a signal fading parameter changing unit 10, an isolation unit 12, and a total signal mixer 13.

The match node has a block of 16.17, · 18 matches.

The simulator works as follows.

Training object 2, which is a collection of blocks of disturbing influences, reference actions and presentation of information, produces a signal representing a combination of interference and signal, the percentage of which remains variable in time both in frequency response and in amplitude. The function of changing the percentage of the signal and interference over time in the training object 2 is performed by a block of disturbing influences. The signal generated by the training object 2 is fed to the input of the useful signal detector 3, the deviation determining unit 5 of the signal frequency response, and the deviation determining unit 6 of the signal amplitude amplitude b, and also to the frequency signal mixer 9.

From the signal produced by the training object, the useful signal detector 3 extracts a 'clean signal, which from its output goes to the input of the deviation determination unit 5 of the frequency response of the signal and the input of the deviation determination unit 6 of the signal amplitude. The useful signal detector is tuned to the transmitted signal using the useful signal area determining unit. - The frequency signal mixer 9 is a device in which the signal from the training object 2 is superimposed on the interference from the signal / interference parameter change unit 8. Information about the percentage of the signal and interference is entered into block 8 changes in the ratio of signal / noise parameters from block 7 to set the operator's level of preparedness.

This information can be entered as. the operator himself, while training in accuracy of work, and the examiner who ¹ wants to know the operator’s professional preparedness, in the latter case, in order to eliminate the influence of the subjective factor of the examinee, the connection of the operator’s console 1 with the training object 2 and the unit 7 for setting the operator’s level of training is eliminated.

Block 8 changes the signal-to-noise ratio, receives information about the percentage signal-to-noise ratio about the type of interference from the switch 11, which receives various types of interference from the training object 2, and about the absolute value of the pure signal and the pure interference and the 5 determine the deviation of the frequency characteristics of the signals. The converted signal through the decoupling unit 12 enters the mixer 13 of the total signal, which implements the modulation of the signal in amplitude. The depth of the modulation of the signal is determined by block 7 setting the level of preparedness of the operator. Since the signal emitted from the object 2 of the training has amplitude instability, 15 a special unit 6 for determining deviations of the amplitude characteristics of the signal is introduced, which receives information from the detector 3 of the useful signal. Information about the instability of the signal, the amplitude modulation depth, and data from the training object 2 are sent to the block 10 for changing the ratio of the signal fading parameters, which determines the modulation depth, 25 The total signal from the output of the mixer 13 of the total signal is sent to the operator console 1, where the signal receiving unit is located , a control unit that controls the object 2, - training and block 7 sets the level of preparedness of the operator. This device determines the psychophysiological capabilities of the operator in the learning process. These positive qualities of the device can be represented ³³ graphically. To do this, in the block for determining the critical parameters of the operator, data are provided for the plotter, who can determine the following dependencies during training:

• 1. The error-free reception of the signal by the operator only with a frequency disturbance = E (s _P ), where a _p is the ratio of the signal level to the noise level45 ^CI G ^% · ·

2. The accuracy of signal reception by the operator only with an amplitude perturbation - fading "= Over), where ao is the ratio of the minimum value of the signal level to the maximum,%. .

3. The area of error-free operation of the operator a »-p (a _A , a _p ), where

Г (а _А , а _р ) - the range of values а _А and э _р / at which the operator realizes the reliable reception of the incoming information.

4. The operator’s productivity in the <learning process B is ί (ι), where ϊ is the training time, it fixes the reliability of 40. the reception of incoming information during the training at constant values of the coefficients.

Information about the psychophysiological ’capabilities of the operator is formed by 45 coincidence blocks 16, 17 and 18. В ί

758236, 6 depending on the required preparedness of the block 15 changes in the evaluation criteria, the received signal can be considered as reliable or false. Psychophysiological information on capabilities of the operator coming from the unit 15 changes the evaluation criteria processed ⁵ Vaeth unit 14 determine the critical parameters of the operator and outputs to the control of the operator 1.

Information on the errors made by the ._ operator during a frequency disturbance is determined by the coincidence unit 18, which compares the information received from the operator console 1 and the mixer 9 of the frequency signals with the information perceived by the operator 15. Information with amplitude perturbation is determined by coincidence block 16. Information in this block comes from the operator’s console 1 and block 10 of the signal fading parameters change 20. Information with frequency and amplitude perturbations is determined by coincidence block 17. Information in this block comes from the console 1 of the operator and the mixer 13 of the total signal. Information on errors made by the operator is sent to block 15 for changing the evaluation criteria, which, depending on the required level of preparedness of the operator, determines the information as false or reliable. * ®

If this information is false, it is transmitted to the unit for determining the critical parameters of the operator, where 1 operator> a or a plotter is processed and issued to the console.

Claims (1)

Claim A simulator of wireless telegraphists containing an action unit associated with a signal determination unit and a signal mixing unit, one of the outputs of which is connected to one inputs of the action unit, characterized in that, in order to improve the accuracy of the simulator, it has a match unit, a determination unit • critical parameters and a block for changing evaluation criteria, while the other outputs of the signal mixing unit through a coincidence node are connected to the first inputs of the block for changing evaluation criteria, the second input of which is connected to one them from impacts output node, the output change of the evaluation criteria block through the block determining critical 'parameters is connected to the node effects, some of which outputs are connected to inputs of the coincidence unit.