APPARATUS AND METHOD FOR PARTIALLY UPDATING A NAVIGATION DATA WHILE DRIVING

• US 20150112591A1
• Filed: 11/27/2013
• Published: 04/23/2015
• Est. Priority Date: 10/21/2013
• Status: Abandoned Application

• Current Assignee: RealTimeTech Co., Ltd.
• Original Assignee: RealTimeTech Co., Ltd.
• Inventors: Kim, Jae Kwang, HAN, Hyeok, JIN, Seong Il
• Application Number:
  US14/091,617
• Publication Number:
  US 20150112591A1
• Time in Patent Office: Days
• US Class Current: 701/532
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G01C 21/32 Structuring or formatting of map data

Abstract

An apparatus and method are provided to partially update a navigation data without interrupting route guide service while a navigation apparatus based on a database provides the service. The apparatus includes a database file stored in a storage medium; a log file stored in the storage medium; a core module for supporting record or access of data into or from the database file and the log file; an update manager for storing a data for updating the database file into the log file using the core module; and a route guide manager for accessing the data stored in the database file using the core module and providing a route guide service.

Claims

1. An apparatus for partially updating a navigation data while driving, the apparatus comprising:

a database file stored in a storage medium;

a log file stored in the storage medium;

a core module for supporting record or access of data into or from the database file and the log file;

an update manager for storing a data for updating the database file into the log file using the core module; and

a route guide manager for accessing the data stored in the database file using the core module and providing a route guide service, wherein

the core module includes a restoration manager for performing log file creation and log record in response to a request of the update manager, being activated only while migration occurs from the log file to the database file, and reading a data from the log file in response to a request of the route guide manager in a case of a changed data.

2. The apparatus according to claim 1, wherein the core module further includes:

a user callback function for performing communication between the route guide manager and the update manager and informing the route guide manager of a start time (MIGCB_MIGRATION_BEFORE) and an end time (MIGCB_MIGRATION_AFTER) of the migration; and

a user API restartupSystem for providing an effect of rebooting the core module by means of a call of the route guide manager at the start time and the end time of the migration.

3. The apparatus according to claim 2, wherein the core module further includes a user API setUserCallbackFunc for registering the user callback function after the update manager is driven.

4. A method of partially updating a navigation data while driving, the method comprising the steps of:

driving a route guide manager, and providing a route guide service by accessing data stored in a database file using a core module;

driving an update manager, performing an update operation on the database file, activating a restoration manager of the core module, and creating a log file and recording a log in the created log file by the restoration manager;

requesting, by a restoration manager of the update manager, the route guide manager to transit a state to ‘

MIGCB_MIGRATION_BEFORE’

, before migration from the log file to the database file is started;

activating a restoration manager of the route guide manager and reading a data from the log file in a case of a changed data;

requesting, by the restoration manager of the update manager, the route guide manager to transit the state to ‘

MIGCB_MIGRATION_AFTER’

, after the migration from the log file to the database file is completed; and

deactivating the restoration manager of the route guide manager, and providing the route guide service by directly accessing the data stored in the database file using the core module.

5. The method according to claim 4, wherein when the restoration manager of the update manager requests the route guide manager to transit the state to the ‘

MIGCB_MIGRATION_BEFORE’

or the ‘

MIGCB_MIGRATION_AFTER’

, the restoration manager of the update manager uses a user callback function which performs communication between the update manager and the route guide manager.

6. The method according to claim 5, wherein the update manager registers the user callback function using a user API setUserCallbackFunc configured in the core module, after being driven.

7. The method according to claim 4, wherein if the state of the route guide manager is transited to the ‘

MIGCB_MIGRATION_BEFORE’

or the ‘

MIGCB_MIGRATION_AFTER’

, a user API restartupSystem is called to provide an effect of rebooting the core module.

8. A computer-readable recording medium for recording a program implementing the method of claim 4.

9. A computer-readable recording medium for recording a program implementing the method of claim 5.

10. A computer-readable recording medium for recording a program implementing the method of claim 6.

11. A computer-readable recording medium for recording a program implementing the method of claim 7.