站点
如整体概念所指出的，站点是实在放置传感器的地方。每个站点都有一个分配的ID（site_id），而开发者在与Senfi集成时可使用该ID。
建筑物，楼，层
一个站点通常包含建筑物，这些建筑物可能由不同的大楼组成。每个大楼都由多个楼层组成。因此，Senfi中的站点组织为：建筑物>楼>层，或简称BBL。
模型类型
Senfi支持两种类型的模型。
- 定制模型
- 手画建模
Bespoke Model
A bespoke model is one which is prepared in a 3D modelling software like 3DS Max. Building/block/level information is already present in a bespoke model and these cannot be changed in the CMS.
User-drawn Model
A user-drawn model is one which is drawn by tracing on a map. Currently, you can only draw one outline in the user-drawn model. This will be used as the building footprint. You can specify the number of floors in this building and the system will generate a building model for you. You can modify the building, block and level of a user-drawn model.
Floorplan Calibration
It is strongly encouraged to have a floorplan associated with each level of a building/block. This makes it easy to locate things both in 3D as well as in 2D. Associating a floorplan with a level requires calibration. This process involves selecting a few corresponding points in the 3D building and the floorplan. This only needs to be done once when adding a floorplan, or when there are changes to the floorplan or 3D model.
