Alerting system of a vehicle deviating from its traffic lane

Details Alerting system of a vehicle deviating from its traffic lane Alerting system of a vehicle deviating from its traffic lane

2008-04-08

2008-04-08

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Traffic control indicator

C348S148000, C340S435000

Reexamination Certificate

active

11217324

ABSTRACT:
An alerting system of a vehicle deviating from its traffic lane on a highway or road is disclosed. It includes at least one left-side determining device, at least one right-side determining device and a warning device. For each side, its light intensity detector obtains a light intensity signal function first. A light intensity variation judging module makes a judge. Aft, it utilizes a misjudging preventing module to avoid the misjudging before sending out a warning signal that can activate a warning action. The advantages and functions of this invention includes having a changeable judging base depending on its environment, lowering the possibility of misjudging caused by shadow, and having several post-processing steps.

REFERENCES:
patent: 2002/0032515 (2002-03-01), Nakamura et al.
patent: 2004/0042638 (2004-03-01), Iwano
patent: 2005/0231389 (2005-10-01), Willemin et al.

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