| 摘要 |
The present invention relates to a method for calculating moving a k-nearest query result and a safe exit point in a road network and, more specifically, to a method and a device for providing a k-nearest query result, a safe zone, and a safe exit point by receiving a request of a client terminal. The present invention can protect location information of a query user by processing a query in a server, receiving a query request and the location information of the query user from a LBS, transferring the query request to the server by anonymizing the location information of the query user; and receiving a query result corresponding to the anonymized location information of the query user from the server so as to transfer the received query result to the query user. |
