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Architecture


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Is Gateway-Less the Future of IoT Deployments?

As edge computing architecture becomes increasingly mature, Internet of Things devices won’t require a gateway to aggregate sensor data.
  • Written by Bill Kleyman
  • 31st January 2020

When you think about connected devices examples immediately come to mind. Whether it’s a car, a door sensor or a medical device, each connects and processes data differently. 

Some iterations are smarter than others. A camera can connect to a Wi-Fi access point and send data directly to the cloud. A door sensor is simpler. Both technologies need to connect to intermediary physical devices on the network where they then process the data and send it on.

Known as IoT gateways, they play an important role in IoT deployments to collect and aggregate sensor data from various devices. An IoT gateway device bridges the communication gap between IoT devices, sensors, equipment, systems and the cloud. By systematically connecting the field and the cloud, IoT gateway devices offer local processing and storage solutions, as well as the ability to autonomously control field devices based on data input by sensors.

From there, they translate between sensor protocols and process data from these sensors and devices before sending it onward to be processed. With simpler devices and sensors, they’ll often connect to the IoT Gateway using short-range wireless transmission modes such as Bluetooth LE, Zigbee, Z-wave or long-range like LTE, LTE-M and even Wi-Fi. 

Once connected, the IoT gateway provides a few key functions including the following: 

  • Bridging communications and facilitating machine-to-machine (or M2M) communications.
  • Offline support services so WAN connectivity is not always required. 
  • Data ingestion, cleaning, filtering, positioning and even early analytics prior to being sent to a cloud or remote data center. 
  • Additional security as the IoT gateway acts as a buffer between a WAN and devices.
  • Real-time configuration, control, management and change management tracking.

But an IoT gateway does add an extra component on the network, and another attack vector that can potentially be breached. This means you will have an additional device on the network that has to be updated, managed and secured. That said, what happens when we remove this IoT gateway? Will future edge and distributed computing solutions be able to handle the billions of IoT and connected devices that will be coming online over the course of the next few years?

For there to be a gateway-less IoT deployment, something will have to change.

A New Frontier for IoT Devices

Even today, IoT gateways play a key role in helping sensors and devices connect to an intermediary source that aggregates data and then sends it off for further processing and analytics. However, edge computing is specifically designed to overcome the challenges of IoT connectivity. 

Edge computing architecture helps with latency. Couple that with 5G technology (where latency is often less than 1 ms and speeds exceed 100 Mpbs) and you’ve got a powerful platform where devices close to edge can now connect and process all of their data. 

Is the Edge the New IoT Gateway?

The real answer isn’t black and white; it depends. Over the next five years or so, edge deployments will become a key component of IoT integration and working with connected devices. Realistically, you will be able to connect simple devices and sensors directly to an edge ecosystem, given that that the edge network is close enough and can support your requirements. 

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Tags: Cloud computing Edge computing IoT platforms Architecture Other Content Features

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