INDUSTRY 4.0 & IIoT
By working with a partner offering all types of IoT connectivity in a blended solution, projects can be rolled out in the confidence that each protocol has been considered and is supported
may however require additional gateway capacity to ensure spreading the sensor message load. But if your use case requires guaranteed delivery of traffic within a specific time period, or a constant stream of messages, cellular protocols such as NB-IoT and LTE-M may need to be used. Another consideration is the protocols
certain sectors are already using to gain traction. In the utility monitoring sector, NB-IoT appears to be the protocol gaining the advantage. No gateways are required as signal towers are the enablement point and it has deep penetration under the ground with good signal strength to reach its destination. But when it comes to monitoring elements
deep within buildings, LoRaWAN can be more effective compared to what NB-IoT can do from the outside in. Refrigeration and temperature monitoring is one such example, with the rollout of the Covid-19 vaccine which must be stored at precise chilled temperatures. LoRaWAN can provide an effective protocol in this instance, measuring the temperature deep inside the building, all
the way down to the probe. Intensive monitoring and data collection will become critical. For a use case
such as measuring readings intermittently, on an alert basis or once an hour, you need to conserve battery power so the sensors last a long time and will likely be leading towards the unlicensed spectrum. At this point in time, there is no one protocol
PC-MAY21-GEORGEFISCHER.qxp_Layout 1 07/05/2021 09:45 Page 1
that is optimised for every use case or can cover an entire estate. The solution is, therefore, to deploy a hybrid model, one which blends different connectivity protocols together, from the unlicensed and licenced spectrums, to achieve total estate and use case coverage. A blended approach is inherently flexible, cost-effective and scalable – ideal for those that are looking to reap the
benefits of mass-scale IoT but are uncertain as to how and where to proceed. Longevity is crucial for the success of an IoT It’s clear that LoRaWAN in
deployment.
particular is on a growth trajectory that will provide that longevity. And the eventual maturity of 5G will also become another option for IoT projects, with much more efficiency in terms of capability to connect millions of sensors.
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MAY 2021 | PROCESS & CONTROL 9
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