SU1571640A1 - Device for submitting information to operator - Google Patents

Abstract

The invention relates to automation and can be used to control the vigilance level of a human operator of ergatic systems, in particular when controlling the level of vigilance of a driver of a vehicle. The aim of the invention is to improve the accuracy of the device with the expansion of its functionality through the organization of dynamic biofeedback. For this, the device containing the driver of the physiological state of the operator with the release of the phasic component of the skin's electrical resistance, the amplitude selector 2, the indicator 4 and the element 11 and 11, is supplemented by a block for measuring the phase component containing, in addition to the element 11, also the formers 5, 6 pulses, counters 7, 8, generator 9, unit 10 comparison, element I 12, decoder 13. 2 Il.

Description

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The invention relates to automation and can be used to control the level of vigilance of a human operator of erratic systems, in particular when controlling the level of vigilance of a driver of a vehicle.

The aim of the invention is to improve the accuracy of the device with the expansion of its functionality through the organization of dynamic biofeedback, on the basis of which the level of vigilance is controlled (self-regulated).

Figure 1 shows the block diagram of the device; Fig. 2 is a block diagram of the measurement of the phasic component.

The device contains an operator shaper 1 of the physiological state of the operator, isolating the phasic delivery (FS) of the electrical resistance of the skin, the amplitude selector 2, the FS measurement unit 3 and the FS level indicator 4. Block 3 contains pulse shapers 5 and 6, counters 7 and 8, generator 9, comparison block 10, elements 11 and 12, and decoder 13.

The device works as follows.

In the normal functional state of the operator, at the output of the imaging unit 1, a physical signal is sent to the amplitude selector 2, and from its output the amplitude-normalized pulses are transmitted to block 3, which realizes the function of determining time t. between the last n and the last but one n-1 pulses (FS), compares the time t with the FS value (t0) displayed on the indicator 4, and provides control over the display of the FS change dynamics .. on the indicator 4. At the same time, if time, then on the indicator 4, a value corresponding to the time tnj is output. If by an amount greater than ut, the indicator 4 is reduced by the value 4 t.

Let us consider how the device works when controlling the level of wakefulness, for example, at operators of railway locomotive operators. First, in stationary conditions, they develop a skill for adaptive state transformation.

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Neither type of vigilance is vigilance, on which the adequacy and timeliness of perception of information depends (warning, stating, prohibiting signals, assessing the situation on the railway track, etc.), and as a result, timeliness and correctness of the situation recognition, decision making and testing certain algorithms of activity according to the incoming information (for example, changing traffic signals from green to yellow instructs the locomotive pursuer to follow a certain part of the road at speeds New X km / h, etc.). The operator’s vigilance level is determined on the basis of the electrical resistance characteristic of the skin (ESC), from which PS is released (practically a galvanic skin response), according to which the skill of self-regulation (adaptive state transformation) is developed.

The control of the level of wakefulness directly at the workplace, during the execution of the algorithms of activity, is carried out according to the values of the FS that are obtained, for example, from the output of the selector 2.

Indicator 4 displays the dynamics of FS change (dynamic visual biofeedback is practically organized), and the operator-operator at the optimal time (when he is least loaded with the development of the algorithm of activity) controls (based on self-regulation) his vigilance level, t . It does not allow the FS to go beyond the set limit values (on the indicator, the zone is made in orange color). At the same time, the operator realizes that if he does not allow the FS values to exceed the maximum permissible values or exceed it, then it is not necessary to develop an additional function due to the operation of the device for monitoring vigilance, which in itself is a motivation - an important factor in controlling human operator. The absence of the need to perform an additional function (of any kind) does not distract the operator from the execution of the algorithm of activity and eliminates the possibility of an unjustified transition of ergatic

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the engine-locomotive system for emergency operation (for example, switching on the braking system on the vehicle). An additional function, such as pressing the alert handle, which is part of an automatic continuous locomotive alarm system and installed in the locomotives, is installed on the control panel and in the front upper part of the cab (above the windshield) in order to press the last operator beforehand. hand and only then press the first handle, with the time for working out an additional function limited to a few seconds. If the operator delays due to the urgency and importance of working out other business algorithms that have high priority (for example, recognizing and assessing the situation on the railway track, crossing, etc.), the braking system is also activated, which can cause an emergency situation.

In the intervals between the arrival of the FS pulses from the output of the selector 2, the counter 7 counts the pulses of the generator 9. Upon the arrival of the FS pulse, the counter 7 is disabled and the counter 8 is enabled. The pulse of the imaging unit 5 enters the inputs of the elements 11 and 12. At the same time, depending on the result of the comparison the contents of counters 7 and 8 at the moment of arrival of the FS pulse, this pulse passes to counter 8 or through element 11 and sets counter 8 to read the counter 7, cog. Yes, the number of the cash register / gchik 7 is greater than the number in the counter 8, or through the element 12 and reduces the counter 8 readings by one increment when the number of the counter 7 is less than the number in the counter 8. Information from the output of the counter 8 goes through the decoder 13 to the output of block 3 for subsequent displays on indicator A of the FS level.

At the end of the pulse of the driver 5, the driver 6 generates a single pulse arriving at the counter 7 and preparing it for measuring the next FS level. Counter 7 resumes counting from the initial value.

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The use of the proposed mouth-. This feature allows you to reduce the number of additional functions that are triggered by the operation of the device for monitoring vigilance, or to completely eliminate it during the time of the operator operator's operation if he successfully controlled the level of his alert FIOCTII.

Thus, the proposed device has an increased accuracy of information presentation and enhanced functionality, which allows controlling the level of operator vigilance and thereby increasing the reliability and efficiency of the functionality.

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consequence of the ergatic system as a whole.

Claims (1)

Invention Formula A device for presenting information to the operator, containing the driver of the physiological condition of the operator, whose input is the input of the device, and the output is connected to the input of the amplitude selector, the indicator and the first AND element, which differs in that self-regulation of the operator’s vigilance level, the first and second pulse formers, the first and second counters, the generator, the decoder, the second element I and the comparison unit, one input of which is connected to the output the first counter and the information input of the second counter, the other input - with the output of the second the counter and the input of the decoder, and the first and second outputs are connected to the same inputs of the first and second elements, respectively, whose outputs are connected to the enable input record and subtractive input, respectively, of the second counter, and other inputs with the output of the first pulse shaper connected to the input of the second pulse shaper, the output of which is connected to the setup input of the first counter, the C input of which is connected to the output of the generator, and the prohibition input - to the input of the first pulse former, C-input of the second the counter and the output of the amplitude selector, the output of the decoder is connected to the input of the indicator. one I 1