Lane departure algorithm based on classification roadway type using DGPS/GIS
Ihn-Sik Weon,Dept of Mechanical Engineering, Graduated School, Kyung Hee University, Yongin-si, Korea
Soon-Geul Lee,Dept of Mechanical Engineering, Kyung Hee University, Yongin-si, Korea
This paper suggestion detection algorithm when the vehicle depart lane boundary using GIS based on DGPS in the whole roadways. Lane segments obtained by GIS will be calculated its relative distance based on vehicle position. The lane segments are composed of consecutive straight lines and have a steady numerical error of design. In the curved section, its numerical error is bigger upon characteristics. Curve lane section, overlap area made of Bezier curve is calculated departure distance through continuity of driving characteristic and determines lane departure at curved roadways. To verify for proposed algorithm, lane departure test has driven 2-times of lane departure at each roadways. The result of compared between vision and departure alarm is showed driver its time within 0.1 seconds.
Lane departure, Intelligent function, Precision Localization, Bezier curvev, Classification roadway, DGPS/GIS
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