User data management server managing biometric data for each driver in vehicle sharing system

1 . A shared vehicle management server of a vehicle sharing system that allows a plurality of users to share and use a vehicle, the shared vehicle management server comprising:

an interface that receives biometric data from the plurality of users;

a storage device that stores the biometric data received through the interface; and

a controller that assigns a unique tag number to each of the plurality of users and manages the biometric data of each of the plurality of users using the unique tag number,

wherein the shared vehicle management server operates as a host system in communication with one or more shared vehicles that transmit biometric data of the plurality of users to the interface,

wherein the controller stores the biometric data of each of the plurality of users in a same storage area of the storage device using the unique tag number,

wherein the unique tag number is an address value identifying a block of the storage device,

wherein the controller maintains the unique tag number for a same user when biometric data stored in the identified block becomes invalid, and

wherein the controller re-stores updated biometric data associated with the same user into a different block of the storage device while preserving the maintained unique tag number.

2 . The shared vehicle management server of claim 1 , wherein

the controller identifies whether newly input biometric data is biometric data of a registered user.

3 . The shared vehicle management server of claim 2 , wherein

the controller determines, when the newly input biometric data is the biometric data of the registered user, whether a tag number generated from the corresponding biometric data is present.

4 . The shared vehicle management server of claim 3 , wherein

the controller performs a write operation or a read operation on a storage area of the storage device, to which a tag number is assigned, when the tag number generated from the corresponding biometric data is present.

5 . The shared vehicle management server of claim 4 , wherein

the storage area is one or more memory blocks.

6 . The shared vehicle management server of claim 3 , wherein

the controller assigns a tag number and a storage area, and perform a write operation or a read operation on the assigned storage area when the tag number generated from the corresponding biometric data is not present.

7 . The shared vehicle management server of claim 1 , wherein

the storage device comprises:

a basic information storage area stores the biometric data and the tag number;

a user information storage area stores data identification information and user data information; and

a temporary information storage area used to perform a migration operation.

8 . The shared vehicle management server of claim 1 , wherein

the storage device is a flash storage device.

9 . A method of operating a host system including a shared vehicle management server and communicating with one or more shared vehicles, the method comprising:

receiving biometric data from a plurality of users;

storing the received biometric data in a flash storage device; and

assigning a unique tag number to each of the plurality of users and managing the assigned unique tag number,

wherein the biometric data of each of the plurality of users is stored in a same storage area using the unique tag number,

wherein the unique tag number is an address value identifying a block of the flash storage device,

wherein the method further comprises maintaining the unique tag number for a same user when biometric data stored in the identified block becomes invalid, and

wherein the method further comprises re-storing updated biometric data associated with the same user into a different block of the flash storage device while preserving the maintained unique tag number.

10 . The method of claim 9 , further comprising:

identifying whether newly input biometric data is biometric data of a registered user.

11 . The method of claim 10 , further comprising:

determining, when the newly input biometric data is the biometric data of the registered user, whether a tag number generated from a corresponding biometric data is present.

12 . The method of claim 11 , further comprising:

performing a write operation or a read operation on a storage area, to which a tag number is assigned, when the tag number generated from the corresponding biometric data is present; and

assigning a tag number and a storage area when the tag number generated from the corresponding biometric data is not present, and performing the write operation or the read operation on the assigned storage area.

13 . A user data management server configured to use biometric information to provide vehicle sharing service, the user data management server comprising:

an interface that receives biometric data and user data from a user;

a storage device that stores the biometric data, a tag number, and the user data received from the interface; and

a controller that manages the user data using the biometric data and the tag number of the storage device,

wherein the shared vehicle management server operates as a host system in communication with one or more shared vehicles that transmit biometric data of the user to the interface,

wherein

the storage device comprises:

a basic information storage area that stores the biometric data and the tag number;

a user information storage area that stores data identification information and user data information; and

a temporary information storage area used to perform a migration operation,

wherein the tag number is an address value identifying a block of the storage device,

wherein the controller maintains the tag number for a same user when biometric data stored in the identified block becomes invalid,

and wherein the controller re-stores updated biometric data associated with the same user into a different block of the storage device while preserving the maintained tag number,

wherein the user information storage area comprises one or more blocks, the one or more blocks comprise one or more pages, and a write operation and a read operation are performed in units of a page and an erase operation is performed in units of a block.

14 . The user data management server of claim 13 , wherein

the tag number is a single number assigned to a single piece of biometric data.

15 . The user data management server of claim 13 , wherein

the user information storage area stores the data identification information on a single piece of biometric data and the user data information in a single block or a single page.

16 . The user data management server of claim 15 , wherein

the controller performs a read operation once on a single piece of biometric data to read all user data.