| 摘要 |
Disclosed is a technique to maximize performance of normal navigation by complementing incomplete GPS information using location information on an access point around a station in case a GPS receiving state becomes abnormal while the station moves and navigates. More specifically, disclosed is a technique to maximize performance of normal navigation building a database, in advance, of the location information on the access point around a route wherein the station moves while the GPS receiving state is excellent, and complementing the incomplete GPS information based on the location information on the access point by obtaining the location information of the access point from the database built in advance after the access point around the station is identified in case the GPS information becomes incomplete as the GPS receiving state is poor. |
