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Entity Management Module
The entity management module (EMM) provides an entity formation and
maintenance service. The EMM has several essential functions. First,
an entity must be created and identified when an event first occurs in
the sensor network. Second, once established, the EMM must maintain this
single entity and prevent spurious entities from forming around a
previously abstracted event. While an entity exists the EMM must
maintain its persistent state such as its unique identity which
signifies the local environmental event. Finally, the EMM is
responsible for ensuring that nodes that sense an event for the first
time know when to become a member of an existing entity and when to
spawn a new entity around the sensed event. These functions are
described below.
Subsections
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2003-03-05