Digital Signal Processing Reference
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Fig. 22.5 Cell controller architecture
Self Model . This model contains information regarding the essential
characteristics of the cell such as its identifier and region boundaries.
Object Model . This model includes information detailing physical entities
that are situated within the cell region but are not actual agents.
22.5 Case Study: Model Execution
In this section, we will consider the accident scenario depicted in Fig. 22.6 .
An accident has occurred in cell 12 (shown by the 'X'), and the vehicle onboard
Collision Avoidance System informs cell controller C12 of the accident. Under this
scenario, C12 immediately performs the following steps:
(a) Informs all the vehicles in the cell of the accident. The C12 cell controller
achieves this by broadcasting an accident notification over the cell-controller-
to-vehicle MTS to all vehicle agents currently stored in the cell's vehicle agent
model.
(b) Informs adjacent cell controllers of the accident. The C12 cell controller sends
accident notifications over the cell-controller-to-cell-controller MTS to neigh-
boring cell stored in the linked cell model.
(c) Communicates with higher level controllers to obtain broader traffic information
that is passed onto the vehicles. A hierarchy of cell controllers enables lower cell
controllers to exchange information with cell controllers on a broader scale.
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