Communication Navigation Apparatus
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Accused Products
Abstract
A communication navigation apparatus (102) predicts a planned en route point that may deviate from a guidance route and previously connects a communication line for connection with a communication server (101). For example, when current waypoint information (P) is positioned on a link (L2), the apparatus extracts a node (V2) as en route point information and connects a communication line with the communication server (101). If the current waypoint information (P) is positioned on a link (L3) after the apparatus passes the node (V2), it means that the apparatus is not deviated from a guidance route corresponding to guidance route information (R), so that it cuts the connected communication line. On the other hand, if the current waypoint information (P) is positioned on a link (L3a) after the apparatus passes the node (V2), it means that the apparatus has deviated from the guidance route corresponding to guidance route information (R), and the apparatus acquires new guidance route information (r) from the communication server (101).
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Citations
23 Claims
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1-13. -13. (canceled)
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14. An apparatus that performs route guidance using information on a guide route to a destination point, the information obtained through data communication with a server and including point information of points on the guide route, the apparatus comprising:
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a position-information obtaining unit that obtains position information on a real-time position of the apparatus;
an extracting unit that extracts information on a planned transit point through which the apparatus is planned to pass next, from the point information;
a communication control unit that controls communication between the apparatus and the server to be established before the apparatus passes through the planned transit point, based on the position information and the information on the planned transit point;
a deviation determining unit that determines whether the apparatus has deviated from the guide route, based on the position information and the information on the guide route; and
a guide-route obtaining unit that, when the determining unit determines that the apparatus has deviated from the guide route, obtains information on another route to the destination point from the server through the communication established by the communication control unit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method of performing route guidance using information on a guide route to a destination point, the information obtained through data communication with a server and including point information of points on the guide route, the method comprising:
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obtaining position information on a real-time position of the apparatus;
extracting information on a planned transit point through which the apparatus is planned to pass next, from the point information;
controlling communication between the apparatus and the server to be established before the apparatus passes through the planned transit point, based on the position information and the information on the planned transit point;
determining whether the apparatus has deviated from the guide route based on the position information and the information on the guide route; and
obtaining information on another route to the destination point from the server when it is determined that the apparatus has deviated from the guide route at the determining. - View Dependent Claims (23)
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Specification