In industrial IoT (IIoT) environments, smart edge devices (ranging from load breakers and meter concentrators to sensors, CCTV cameras, traffic monitoring and control units, remote PLC controllers, and other automation-enabled devices) are connected to operational networks and control centers via IIoT gateway devices, sometimes referred to as IoT edge gateways. Other common terms used for an IIoT gateway are: IoT smart gateway (or smart IoT gateway), IoT edge gateway, IoT gateway hardware (or IoT gateway software), IoT security gateway, or cellular IoT gateway.
The most talked about benefit of IIoT is the shift of focus to increased efficiency and lower costs using smart edge devices and Big Data analytics. Still, massive data transmissions to and from many IIoT devices in remote sites – over diverse network connections and in a timely manner – are not trivial challenges to overcome. Also challenging is the need for actionable information (in other words, real-time analytics) to make sense of all the data collected.