Personal Navigation System and route guiding method in the personal navigation system
First Claim
1. A Personal Navigation System (PNS) comprising:
- a mobile terminal for transmitting a route guiding request message including its current position information and destination information in response to a route guiding request from a user; and
a personal navigation server for receiving the route guiding request message, determining the accuracy of the current position information included in the received route guiding request message, providing Route Guiding Information (RGI) according to the current position information and the destination information if the current position information has a high accuracy, and providing destination coordinate information and peripheral map information around a user'"'"'s current position to provide a direction toward a user'"'"'s destination if the current position information has a low accuracy.
1 Assignment
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Accused Products
Abstract
A Personal Navigation System (PNS) and a route guiding method in the PNS are provided. The PNS includes a mobile terminal for transmitting a route guiding request message including its current position information and destination information in response to a route guiding request from a user and a personal navigation server for receiving the route guiding request message, determining the accuracy of the current position information included in the received route guiding request message, providing Route Guiding Information (RGI) according to the current position information and the destination information if the current position information has a high accuracy, and providing destination coordinate information and peripheral map information around a user'"'"'s current position to provide a direction toward a user'"'"'s destination if the current position information has a low accuracy. Thus, when initial position of a user is inaccurate, route guiding using the inaccurate initial position is deferred and the user is guided in a direction toward a destination, thereby preventing additional deviation from a correct route due to inaccurate route guiding.
22 Citations
16 Claims
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1. A Personal Navigation System (PNS) comprising:
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a mobile terminal for transmitting a route guiding request message including its current position information and destination information in response to a route guiding request from a user; and
a personal navigation server for receiving the route guiding request message, determining the accuracy of the current position information included in the received route guiding request message, providing Route Guiding Information (RGI) according to the current position information and the destination information if the current position information has a high accuracy, and providing destination coordinate information and peripheral map information around a user'"'"'s current position to provide a direction toward a user'"'"'s destination if the current position information has a low accuracy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A route guiding method in a Personal Navigation System (PNS), the route guiding method comprising the steps of:
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a mobile terminal transmitting a route guiding request message to a personal navigation server in response to a route guiding request from a user;
the personal navigation server determining the accuracy of current position information included in the route guiding request message;
the personal navigation server providing Route Guiding Information (RGI) according to the current position information and destination information if the current position information has a high accuracy and providing destination coordinate information and peripheral map information around a user'"'"'s current position if the current position information has a low accuracy; and
the mobile terminal performing route guiding if RGI is provided and guiding the user in a direction toward a user'"'"'s destination if the destination coordinate information and the peripheral map information are provided. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification