Navigation apparatus for providing social network service (sns) service based on augmented reality, metadata processor, and metadata processing method in augmented reality navigation system

A metadata processor comprising:

• a map node defining component configured to define a map node for setting a virtual map;
• a map overlay node defining component configured to define a map overlay node for setting a layer in which augmented reality objects are to be overlaid on a set virtual map;
• a map marker node defining component configured to define a map marker node for setting a point of interest (POI) at which the augmented reality objects are to be overlaid on a set layer on the set virtual map;
• an Social Network Service (SNS) container node defining component configured to define an SNS container node for setting SNS information at the POI on the virtual map;
• and
• a node processor configured to load the virtual map according to the defined map node, load the layer according to the map node, load the map marker according to the defined map marker node, and load SNS information according to the defined SNS container node.

A metadata processing method comprising:

• defining a map node, a map overlay node, and a map marker node;
• defining a Social Network Service (SNS) container node for setting SNS information at a point on a map;
• loading a virtual map according to the defined map node, loading a layer in which augmented reality objects are to be overlaid on the virtual map according to the defined map overlay node, and loading a map marker on the layer according to the defined map marker node;
• and
• loading SNS information to the map marker according to the defined SNS container node.