| 摘要 |
PURPOSE: A suitable OSD(On Screen Display) guide line setting device for backward parking is provided to enable safe backward parking since a guide line for backward parking is accurately set up in an image display. CONSTITUTION: A suitable OSD(On Screen Display) guide line setting device for backward parking comprises a microcomputer(11). The microcomputer comprises perpendicular and transverse position value calculating units(7,9). If a guide-line is set up around a back wheel, the microcomputer calculates values accruing to the following formula: atan{(rl-oh)/ch}, atan{(gl-oh)/ch}, ch*tan(ya)+oh. An a-angle and b-angle are calculated from the perpendicular and transverse position value calculating unit. The 'y' is actual driving distance corresponding to the location of a camera. The desirable position correspondent to the width of a display mapping screen for the width of the real ground is calculated.
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