Production Description: ROADEFENDTM Lane Departure Warning (LDW.), an accessory of Drowsiness Warning System, is a lane tracking product based on machine vision. This product is combined to the host of RDT series Drowsiness Warning System, and therefore consists,together with the host, of ROADEFEND Driver’s Attention Comprehensive Assessment System.         With the adoption of a forward-looking camera, this product is employed to detect a lane boundary on a roadway over which a vehicle is travelling ahead; to calculate a traveling direction of the vehicle as well as a lateral distance between the lane boundary and the vehicle, then it can determine a reasonable time for generating a departure warning.          This product is also employed to judge whether the driver was or is drowsing or will drowse during the long period of driving by means of capacity of Lane Keeping Analysis (LKA).    Note: LDW works only together with the host of RDT series Drowsiness Warning System.  Product Advantage:        High Quality & Reasonable Price         (1) S hare the same image processer with host of Drowsiness Warning System.        (2) Play the rose of Car Digital Video Recorder.  M ore accurate alarm          (1) Judge whether the driver is abstracted or is drowsing with the aid of information coming from host of Drowsiness Warning System to determine alarm degree.       (2) assist the host of Drowsiness Warning System to forecast whether the driver is drowsing.   E asy installation         (1) Improve installation efficiency with adoption of self-calibration function by lowering installation accuracy.