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    • 3. 发明公开
    • NAVIGATION DEVICE
    • NAGIGATIONSVORRICHTUNG
    • EP1096228A4
    • 2001-08-22
    • EP99921160
    • 1999-05-17
    • SANYO ELECTRIC COTOKYO SANYO ELECTRIC CO
    • YOSHIMURA TOMOYUKIABE YUICHI
    • G01C21/30G01C21/00G01C21/36
    • G01S19/13G01C21/30G01S19/50
    • A navigation device which performs map-matching for checking the current position detected by a position detection means against a road on a map, and displays, when a road matching the current position is found, the name of the road on a display means or displays, when a matching road is not found, location information showing the current position on the display means. In addition, when the current position detected by a position detection means is checked against a road on a map for map-matching and the name of a road cannot be displayed on a display means, location information is displayed instead. Further, the device checks as to whether or not power is supplied from an outside power source and, when power supply from an outside power source is confirmed by an outside power detection means, map-matching is performed or, when power supply from the outside power source is not confirmed, the map-matching is not performed.
    • 本发明提供一种导航装置,该导航装置进行地图匹配,以检查由位置检测装置检测到的当前位置与地图上的道路相对,并且当找到与当前位置匹配的道路时在显示装置上显示道路的名称或显示 当找不到匹配道路时,在显示装置上显示表示当前位置的位置信息。 另外,在对地图上的地图上的道路检查由位置检测装置检测到的当前位置以进行地图匹配并且在显示装置上不能显示道路的名称时,替代地显示位置信息。 此外,设备检查是否从外部电源供应电力,并且当通过外部电力检测装置确认来自外部电源的电力供应时,执行地图匹配,或者当来自外部的电力供应 电源未被确认,地图匹配不被执行。