公开(公告)号：US06249740B1

公开(公告)日：2001-06-19

申请号：US09234479

申请日：1999-01-21

申请人： Yasuo Ito ,  Naoki Gorai ,  Takashi Sugawara ,  Satoshi Kitano

发明人： Yasuo Ito ,  Naoki Gorai ,  Takashi Sugawara ,  Satoshi Kitano

IPC分类号： G01C2100

CPC分类号： G08G1/096811 ,  G01C21/34 ,  G06Q10/02 ,  G06Q10/047 ,  G08G1/096822 ,  G08G1/096861 ,  G08G1/096866 ,  G08G1/096872

摘要： A commucations navigation system in which data is transmitted and received between a navigation base apparatus provided at a navigation base and a vehicle navigation apparatus provided in a vehicle using communication. The vehicle navigation apparatus is adapted to transmit at least data concerning the current position of the vehicle and the destination thereof to the navigation base apparatus, and the navigation base apparatus stores navigation data in its data base and is adapted to determine a recommended route based on the transmitted data of the current position of the vehicle and the destination thereof and then extract data of the recommended route from the navigation data stored in the data base and transmit the extracted data to the navigation apparatus. The navigation base apparatus is adapted to be able to extract detailed navigation data only for a surrounding areas of a specified point on the recommended route from the navigation data stored in the data base and then transmit the detailed navigation data to the navigation apparatus. The specified point includes a departure point, a destination and a course-change point which are located on the recommended route. During traveling other places on the recommended route such as intermediate sections, the navigation apparatus transmits simple navigation data such as a simple map to the vehicle, thereby enabling to reduce an amount of data to be transmitted from the navigation base apparatus to the vehicle navigation apparatus.

摘要翻译： 一种通信导航系统，其中在设置在导航台的导航基站装置和使用通信的车辆中提供的车辆导航装置之间发送和接收数据。 车辆导航装置至少将与车辆的当前位置及其目的地有关的数据发送到导航基站装置，并且导航基站装置将导航数据存储在其数据库中，并且适于基于 车辆的当前位置和目的地的发送数据，然后从存储在数据库中的导航数据中提取推荐路线的数据，并将提取的数据发送到导航装置。 导航装置适于仅从存储在数据库中的导航数据提取对推荐路线上的指定点的周围区域的详细导航数据，然后将详细的导航数据发送到导航装置。 指定点包括位于推荐路线上的出发点，目的地和路线改变点。 在诸如中间部分的推荐路线行驶的其它地方，导航装置将诸如简单地图的简单导航数据发送到车辆，从而能够将从导航基站装置发送的数据量减少到车辆导航装置 。