电梯

Senfi里的电梯代表着现实世界中的物理电梯。电梯是Senfi中的专用传感器，可能包含一个或多个测量值。

必须在测量中创建lsid标签，并将其标记为必需标签。

三维模型中的电梯是由电梯井道（蓝色盒子）和电梯轿厢（绿点）表示。

大堂代表现实世界中的电梯大堂。一个大堂可能包含一个或多个电梯。

停靠站是电梯可以行驶的楼层。停靠站从1开始，并且从最低到最高服务楼层开始排序。

For example: Lift A in below image is serving from level 2 of Blk A, so stop 1 of the Lift A is Level 2.

Lifts are associated with lobby and lift's stops may within one or more blocks of the same building.

For example: Lift A in below image is serving levels within Blk A but Lift C is serving from level 1 of Blk B to level 5 of blk C.

Lift relation with BBL