TWO-STEP SLEEPY DRIVING PREVENTION APPARATUS THROUGH RECOGNIZING OPERATION, FRONT FACE, EYE, AND MOUTH SHAPE
First Claim
1. A two-step drowsy driving prevention apparatus through motion, face, pupil and mouth recognition, the apparatus comprising:
- a driving judging unit to judge a forward driving state of a vehicle;
a photographing unit to photograph a driver'"'"'s condition;
a drowsiness judging unit to judge whether or not the driver is driving while drowsiness;
a warning unit to generate a warning sound; and
a controller to control the driving judging unit, the photographing unit, the drowsiness judging unit and the warning unit,wherein the driving judging unit comprises;
a first-step judging process to judge a drowsiness prelude action through recognition of the driver'"'"'s motion, face, pupil and mouth shape only when the vehicle is moving forward by receiving coordinate information of the current location of the vehicle from a GPS terminal and comparing the coordinate information with coordinate information of location for several seconds before the current location in order to judge whether the vehicle is driving forward, is driving backward or is stopped; and
a second step judging process to judge a drowsiness execution action, so that the drowsy driving prevention apparatus finally determines that the driver is in drowsy driving and generates a warning sound only when it is judged that there is a drowsiness execution action in the second step determination process after it is determined that there is the drowsiness prelude action of the first step.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed therein is a two-step drowsy driving prevention apparatus through motion, face, eye, and mouth recognition. A driving judging unit which includes a GPS device to detect a driving state of a vehicle and a drowsiness judging unit which receives image and three-dimensional depth information from a photographing unit including an infrared depth sensor and an infrared camera mounted at positions to observe a driver'"'"'s face judge a cycle of a yawn, a speed and a cycle of nodding the head and a speed and a cycle of a blink of the eye as a first step judgment. When it is judged that there is a drowsiness prelude action, the apparatus outputs a “preliminary warning”. After that, a warning unit outputs a “main warning” when there is a drowsiness execution action by inspecting a closed state of the eye, a forward looking state of the eye and an angle of the head as a second step judgment so as to accurately judge only a drowsy driving action except the closed state of the eye and the case that the driver does not look at the front or bends the head other than drowsiness through the two-step stepwise judging method based on various judgment criteria, such as the driver'"'"'s motion, face, pupil and a mouth shape, thereby preventing traffic accidents, human casualties and economic loss due to drowsy driving.
22 Citations
15 Claims
-
1. A two-step drowsy driving prevention apparatus through motion, face, pupil and mouth recognition, the apparatus comprising:
-
a driving judging unit to judge a forward driving state of a vehicle; a photographing unit to photograph a driver'"'"'s condition; a drowsiness judging unit to judge whether or not the driver is driving while drowsiness; a warning unit to generate a warning sound; and a controller to control the driving judging unit, the photographing unit, the drowsiness judging unit and the warning unit, wherein the driving judging unit comprises;
a first-step judging process to judge a drowsiness prelude action through recognition of the driver'"'"'s motion, face, pupil and mouth shape only when the vehicle is moving forward by receiving coordinate information of the current location of the vehicle from a GPS terminal and comparing the coordinate information with coordinate information of location for several seconds before the current location in order to judge whether the vehicle is driving forward, is driving backward or is stopped; and
a second step judging process to judge a drowsiness execution action, so that the drowsy driving prevention apparatus finally determines that the driver is in drowsy driving and generates a warning sound only when it is judged that there is a drowsiness execution action in the second step determination process after it is determined that there is the drowsiness prelude action of the first step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification