Smart Remote Nodes Fed by Power Over Fiber in Internet of Things Applications

Smart IoT solutions integrated into power grid
stations are important due to their high economic and social
value. Power over fiber technology to remotely feeding sensors
and control electronics is a good choice in these environments
of high electromagnetic interference. A sensing system design
for magnetic field monitoring, fire and temperature/presence
detection, and remotely fed by optical means is discussed. This
design includes two types of nodes, smart and passive. Smart
remote nodes have an energy manager to provide power on
demand. Asymmetric splitting is proposed to optimize power
distribution. Some tests on remote node power consumption,
feeding, sensing, and centralized monitoring in one type of those
nodes are successfully performed and reported.