IoT Gateways

 

IoT gateways and their central role in the Internet of Things

IoT gateways fulfil several roles in IoT  projects. As the number of devices, the scale of IoT projects (and volumes of – heterogeneous – data) and the need for faster intelligence, better security and more integration grows, so does the need for IoT gateways.

What is an IoT Gateway?

A gateway is a data communication device that provides a remote network with connectivity to a host network.

A gateway device provides communication to a remote network or an autonomous system that is out of bounds for the host network nodes. Gateways serve as the entry and exit point of a network; all data routed inward or outward must first pass through and communicate with the gateway in order to use routing paths. Generally, a router is configured to work as a gateway device in computer networks.

For example, your home Internet gateway connects your Local Area Network (LAN) to your Internet Service Provider (ISP). This gateway connects the ISP’s Wide Area Network (WAN) to your LAN using TCP/IP. The IoT gateway follows the same principle of bridging communication for different technologies. It creates a bridge between the IoT sensors / actuators and the Internet. The IoT gateway aggregates data, if necessary, translates the protocols of the sensors and processes the data before transmission.

The IoT gateway handles all communication between the sensors, devices in the field and remote connections such as the Internet, applications, or users. In this communication, the IoT gateways collect the data locally and then usually send it via MQTT or AMQP to a cloud system such as Azure or AWS.

 

Why are IoT gateways used?

 An IoT gateway contains communication technologies that connect end-devices such as actuators, sensors & more complex devices. It also connects backend platforms such as data, device & subscriber management to the gateway. The integrated computing platform facilitates pre-installed or user-defined applications for data management, routing, computing at edge, devices, security, communication and other gateway functionalities.

Advantages of IoT Gateways utilization:

 

1.Inter-Device Connection & Connection to the Cloud 

IoT Gateways allow for individual, remote control of devices from a centralized location that saves you time and effort. They can be programmed to work together and can be controlled individually.The central hub provides a singular location where data is transmitted to and from devices, which comes from other devices and users via the cloud. The information that is transmitted or received from an IoT device is communicated to devices through IoT gateways via cloud-enabled software.

2. Data Filtration

The IoT gateway allows for devices to communicate with simplification. The data which is communicated is filtered into useful bits of information. IoT gateways are intelligent and have the capability to work at the edge, which means that each gateway can detect and filter through available data prior to dispatching the filtered data through the cloud, which improves communication as well as response timings. 

3. Data Security & Risk Mitigation 

With the expansion of IoT devices comes various security risks. IoT gateways provide added layers between the internet and the device, which allows for protection against security breaches and unwarranted hacking and attacks. A gateway enables additional security for your IoT devices.

 

4. Intelligence at the Edge 

Data can be processed and interpreted by IoT Gateways, which eliminates the need for a third party or human intervention to decipher and process information. It is therefore more smart and autonomous to invest in IoT Gateways.

 

**fore more information : https://datagram.ae/blog/advantages-of-using-iot-gateways