| 摘要 |
<p>The present invention relates to a rear alarm device depending on a relative velocity using a rear sensor, and a method thereof. After acquiring a rear vehicle position information and acquiring a rear vehicle velocity from the acquired rear vehicle position information to compare a vehicle velocity of its own and the acquired rear vehicle velocity; provides a warning information to the rear vehicle if the rear vehicle velocity exceeds its own vehicle velocity, and a distance between the rear vehicle and the front vehicle is within a predetermined threshold value.</p> |
