ON-VEHICLE DEVICE AND PROCESS METHOD FOR ON-VEHICLE DEVICE

PROBLEM TO BE SOLVED: To provide an "on-vehicle device" for facilitating setting of route change by toll road entrance change during route guiding of a vehicle.SOLUTION: An on-vehicle device for carrying out route guiding of the vehicle is composed to include: off route spot detection means for detecting an off route spot from a guide route directing to a toll road entrance; entrance guide plate position detection means for detecting the position of a nearest toll road entrance guide plate to the off route; prescribed distance determination means for determining whether the off route spot and the entrance guide plate position are within a prescribed distance; toll road entrance determination means for determining existence of another toll road entrance within a prescribed distance range in a direction of travel of the off route travel; display control menas for creating and displaying a change display screen to another toll road entrance when the existence of another toll road entrances in the travel direction which is off the guide route is determined with the distance between the off route spot and the guide plate position within a prescribed distance; and guide route change setting means for carrying out change of the guide route based on the change setting.SELECTED DRAWING: Figure 2 【課題】車両の経路誘導中に有料道路入口変更による経路変更の設定を容易にする「車載装置」。【解決手段】車両の経路誘導を行う車載装置であって、有料道路入口に向けた誘導経路からオフルート地点を検出するオフルート地点検出手段と、オフルート地点に直近の有料道路入口案内板の位置検出する入口案内板位置検出手段と、オフルート地点と入口案内板位置とが所定距離内かを判定する所定距離判定手段と、オフルート走行する進行方向の所定距離範囲内での他の有料道路入口の有無を判定する有料道路入口判定手段と、オフルート地点と案内板位置との距離が所定距離以内で、かつ前記誘導経路から外れた進行方向に他の有料道路入口があると判定されたとき、他の有料道路入口への変更表示画面を作成して表示させる表示制御手段と、変更設定に基づいて誘導経路の変更を行う誘導経路変更設定手段と、を有する構成となる。【選択図】図２