Page 405 - ARM Based Microcontroller Projects Using MBED

16.2 INTERNET OF THINGS (IoT) 391
There can be several variations of the basic distributed processors architecture. In shared
distributed processors architecture shown in Fig. 16.2, a group of IoT devices can share a local
processor. This architecture has the advantages that it is simpler and also the cost is less since
the local processor count is reduced. The disadvantage of this architecture is that some IoT
devices may be located far away from the shared processors and it may not be possible to
make direct connections. In this architecture the IoT devices can be connected directly to
the local processors with wires and only one wireless communication device can be used.
Fig. 16.3 shows the IoT common processor architecture. Here, all the sensors as well as the
actuators are connected to a local common processor using wires. The common processor can

FIG. 16.2 IoT using shared distributed processors.

FIG. 16.3 IoT using a common processor.