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2 034 724

(13)

C1

(51)

IPC

(21) (22)

Application

4937275/11, 1991-05-20

(22)

Actual filing date

1991-05-20

(45)

Published

1995-05-10

(72)

Inventor

Shkrabak V.S.Kalinin V.I.Prokopenko Ju.Ja.Shkrabak V.V.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Agrarnyj Universitet

VIGILANCE DEVICE Russian patent published in 1995 - IPC

Abstract RU 2034724 C1

FIELD: transport. SUBSTANCE: device has driver's head position pickup with optical reflector 9 installed on vehicle windshield and three optocouplers 1, 2, 3 installed in headrest so that extreme optocouplers are arranged, respectively, opposite to left-hand and right-hand ear lobe and central optocoupler is arranged at level of driver's head top. Device has resonance amplifiers 11, 12, 13, NOT gates 14, 15, OR gate 16, time relay 17 and signalling device 18. EFFECT: enhanced reliability of operation. 3 dwg

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RU 2 034 724 C1

Authors

Shkrabak V.S.

Kalinin V.I.

Prokopenko Ju.Ja.

Shkrabak V.V.

Dates

1995-05-10—Published

1991-05-20—Filed

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