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As previously posted in IoT Evolution
As more industry organizations take their first cautious
steps towards the Internet of Things (IoT), they are quickly realizing the need
for a new class of systems: the IoT gateway. As with any new technology
introduced into an industrial environment, the question arises: will new risks
arise?
The IoT gateway sits between systems at the edge and
centralized control and management systems, often linked through the cloud. The
gateway collects data from hundreds or thousands of sensors and other advanced
systems by broadcasting protocols and device control models. IoT gateways are
moving from simply providing this broadcast function to smart systems that
provide higher-level control functions at the edge and ultimately reduce the
burden on central control systems.
System vendors have taken advantage of the growing demand
for IoT gateways by offering turnkey solutions that combine software and
hardware. In fact, you will find a range of IoT gateway solutions offered by
some of the most renowned computer hardware manufacturers. These systems have
some attractive features. They are generally robust and designed specifically
for workshop use. And they are usually cheap. What's not to like?
Unfortunately, these systems also have some limitations.
They usually don't have much power; they cannot replace the current Edge
Servers. They are not virtualized - and if they are, they can be as expensive
as a more complete system. And because they are based on low-cost off-the-shelf
equipment (COTS), the expected lifecycle is limited, as are the expectations
for reliable support from suppliers.
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