US Patent Application 18026382. MAP DATA MANAGEMENT APPARATUS AND MAP DATA MANAGEMENT METHOD simplified abstract

MAP DATA MANAGEMENT APPARATUS AND MAP DATA MANAGEMENT METHOD

Organization Name

Mitsubishi Electric Corporation

Inventor(s)

Seigo Kanazawa of Tokyo (JP)

Mitsuo Shimotani of Tokyo (JP)

Yasushi Kodaka of Tokyo (JP)

Keisuke Inoue of Tokyo (JP)

MAP DATA MANAGEMENT APPARATUS AND MAP DATA MANAGEMENT METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 18026382 titled 'MAP DATA MANAGEMENT APPARATUS AND MAP DATA MANAGEMENT METHOD

Simplified Explanation

The abstract describes a map update controller for a map data management apparatus.

• The controller predicts which parts of the map data will be requested by a map application.
• It identifies meshes (sections) of the map data that are not up-to-date in the map database.
• These identified meshes are considered "update-necessary" meshes.
• The controller performs a first map update process to immediately update the map data of the update-necessary meshes if it can be done before the map application requests them.
• If the map data cannot be updated immediately, the controller performs a second map update process at a specific timing determined by a predefined condition.
• The purpose of this innovation is to ensure that the map data used by the map application is always up-to-date and accurate.

Original Abstract Submitted

A map update controller of a map data management apparatus predicts meshes whose pieces of map data will be requested from a map application, and identifies meshes whose pieces of map data stored in the map database are not latest as update-necessary meshes, from among the predicted meshes whose pieces of map data will be requested. The map update controller performs a first map update process of immediately updating pieces of map data of the update-necessary meshes when the pieces of map data of the update-necessary meshes can be updated before the map application requests the pieces of map data of the update-necessary meshes, and performs a second map update process of updating the pieces of map data of the update-necessary meshes at the timing that an operation of the map application satisfies a predefined condition when the pieces of map data cannot be updated.