There have main four key levels in IOT Architecture It is
Application layer, Support layer, Network layer and persistence layer instead
of the Device layer. The lowest The level is persistence layer it is also known
as recognition.including information of object properties and environmental
conditions etc; and also physical information is RFID readers, various sensors,
GPS and many more items. The main purpose is that the layer is collecting data
by sensors To the physical world to the digital world.
The Next Level is the network layer.It is doing transmission information
from the persistence layer to support layer vice versa.in this layer,
transmission is occurring several networks, which is satellite nets, internet,
mobile communication networks, wireless networks and communication protocols
are help to exchange information to the devices.
The next level is the third layer.we called as support layer.it is
provided service connecting application layer and the network layer. this layer
is trust support for the application layer and also more organizing and cloud
computing and grid.
The last layer is the application layer .it is in the top terminal
level. application layer directly communicates with users and give services for
providing through interface.they can access in this layer through the
internet.Using computers, mobile phones.
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