Building data platform with external twin synchronization

A method comprising:

• storing, by a processing circuit, a digital twin of a building comprising a graph data structure, the graph data structure comprising a plurality of nodes representing entities of the building and a plurality of edges between the plurality of nodes representing relationships between the entities of the building;
• receiving, by the processing circuit, a modification to the digital twin of the building, the modification modifying at least one of the plurality of nodes or the plurality of edges;
• generating, by the processing circuit, a change feed event of a change feed, the change feed event recording the modification to the graph data structure, the change feed comprising a plurality of change feed events representing modifications to the graph data structure at a plurality of different times;
• generating, by the processing circuit, an update for an external digital twin stored by an external system based on the change feed event, the update indicating a change to the external digital twin;
• and
• synchronizing, by the processing circuit, based on the update, the external digital twin of the building of the external system with the digital twin of the building by communicating with the external system.

One or more memory devices having instructions thereon, that, when executed by one or more processors, cause the one or more processors to:

• store a digital twin of a building comprising a graph data structure, the graph data structure comprising a plurality of nodes representing entities of the building and a plurality of edges between the plurality of nodes representing relationships between the entities of the building;
• receive a modification to the digital twin of the building, the modification modifying at least one of the plurality of nodes or the plurality of edges;
• generate a change feed event of a change feed, the change feed event recording the modification to the graph data structure, the change feed comprising a plurality of change feed events representing modifications to the graph data structure at a plurality of different times;
• generate an update for an external digital twin stored by an external system based on the change feed event, the update indicating a change to the external digital twin;
• and
• synchronize, based on the update, the external digital twin of the building of the external system with the digital twin of the building by communicating with the external system.