| 摘要 |
A method of creating geographic zones may include receiving a selection of a first geographic zone located at least partially within a geographic region, storing a tree data structure that represents the first geographic zone, and sending the tree data structure to be stored on one or more asset tracking devices. The tree data structure may include a plurality of nodes organized into parent-child relationships where each of the nodes represents geographic areas. A root node may represent the geographic region, each child node may represent a sub-area of a geographic area represented by the respective parent node, each node may represent a geographic area that at least partially overlaps with the first geographic zone, and each node representing a geographic area that is entirely within the first geographic zone may include an identifier associated with the first geographic zone. |
