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IoT Gateway Devices vs IoT Devices: Types & Functionality

IoT has impacted the way we interact with our objects, homes and cities, but it is also revolutionising industrial automation and healthcare. At the heart of this transformative technology are the IoT Gateways, a set of networking and computing devices which play the main role in connecting and managing the things we connect to the internet (IoT devices). In this article, we'll delve into the different types of IoT devices and IoT gateway devices and the latter's functionalities.


IoT Gateway Devices


Examples of IoT Devices

The Internet of Things (IoT) encompasses a wide range of devices across various industries and applications. Here is a list of examples of IoT devices:


Industrial or Business-grade IoT Devices


Industrial Sensors: Sensors used in manufacturing and industrial settings to monitor equipment health, production processes, and safety. For instance:

  • Tooling Performance Sensors: Specialised sensors used in manufacturing and machining processes to monitor and optimise the performance of tools, such as servos, e-chains, LM rails and guides, cutting tools, drills, and milling tools. These can help to monitor tool wear, temperature, force and torque, tool breakage, tool life, process compliance, quality and OEE, often in real-time. Data can be shared to MES / SCADA applications for maintenance and OEE monitoring.

  • Predictive Maintenance Sensors: In industrial settings, sensors are utilised for predictive maintenance. For instance, vibration sensors such as those from NSK, SKF or Rockwell Automation can monitor the vibrations of rotating machinery. By analysing these vibrations, the system can forecast when equipment might fail, allowing for timely maintenance to prevent costly breakdowns.

  • Temperature and Humidity Sensors in Food Storage: In the food industry, temperature and humidity sensors are critical for maintaining product quality. IoT sensors can be placed in refrigerators, freezers, and storage areas. These sensors monitor conditions in real-time and send alerts if temperatures or humidity levels deviate from safe ranges.

  • Smart Thermostats: These devices can be controlled remotely and adapt to your heating and cooling preferences.

  • Energy Efficiency IoT Devices: Energy Management IoT Devices play a critical role in the manufacturing industry by helping companies monitor, control, and optimise their energy consumption, contributing also to environmental sustainability. Some of these include IoT-enabled Smart Electricity Meters, Power Quality Monitors, Energy Flow Sensors, IoT-Enabled HVAC Controls, Smart Lighting Solutions, IoT-Enabled Demand Response Controllers and Battery Energy Storage Systems (BESS).

  • Advanced Plant Monitoring: APM (Advanced Plant Monitoring) IoT Devices enable monitoring of the manufacturing plant, extracting data from manufacturing systems such as robots, CNC machines, autonomous mobile robots, PLCs and energy meters, presenting the data on various front ends such WEB application and mobile App, which can be used interchangeably. The user can have alerts, production level in a certain time frame, OEE and other information displayed on the holographic interface.

Learn more about IoT Edge for Industrial purposes.


Connected Cameras: Industrial cameras aid computer vision in industrial processes, facilitating predictive maintenance, product quality and process efficiency. Security cameras that stream video to your smartphone and offer features like motion detection.


Asset Tracking Tags: Small, battery-powered devices used in logistics and supply chain management to track the location and condition of assets.


Environmental Sensors: Devices that measure air quality, temperature, humidity, and other environmental factors for home or industrial use. For instance:

  • Air Quality Monitor: Devices such as the "AirVisual Node" that measure air quality by detecting pollutants like particulate matter (PM2.5), volatile organic compounds (VOCs), and carbon dioxide (CO2). These sensors provide real-time data and can connect to your smartphone to provide air quality alerts and historical trends, aiding you in making informed decisions regarding indoor air quality.

  • Smart Thermostat with Environmental Sensors: Some smart thermostats, like the Ecobee SmartThermostat, incorporate environmental sensors to monitor temperature, humidity, and occupancy. These sensors help optimise heating and cooling settings based on room conditions, making your HVAC system more energy-efficient.

Smart Smoke Detectors: Smoke detectors that send alerts to your phone and provide real-time information about potential fires.


Smart Agriculture Devices: IoT devices used in agriculture for soil monitoring, crop health, and automated irrigation.


Smart Streetlights: Streetlights equipped with sensors to adjust lighting based on traffic and weather conditions, saving energy.


Smart Grid Devices: Devices used in the electrical grid to monitor and manage energy distribution efficiently.


Water Quality Sensors: Sensors placed in bodies of water to monitor water quality and detect pollution.


Smart Vending Machines: Vending machines equipped with sensors and connectivity for inventory management and sales tracking.


Retail IoT Devices: Devices like smart shelves and beacons used in retail stores for inventory management and customer engagement.


Smart Mirrors: Mirrors with built-in displays that provide information like weather, news, and fitness data.


Healthcare IoT Devices: Devices like connected glucose monitors, pill dispensers, and remote patient monitoring systems. For instance:

  • Remote Patient Monitoring Devices: IoT devices in healthcare encompass remote patient monitoring solutions. These systems enable patients to measure and transmit vital signs, such as blood pressure, heart rate, and glucose levels, to healthcare providers remotely. This facilitates continuous monitoring of patients with chronic conditions and reduces the need for frequent hospital visits.

  • IoT-enabled Medical Devices: Medical devices such as insulin pumps, pacemakers, and continuous glucose monitors with remote monitoring capabilities

  • IoT-Enabled Imaging: Advanced X-ray, CT or Ultrasound machines in healthcare facilities are now equipped with IoT capabilities. These devices capture high-resolution medical images and transmit them digitally to a secure network for immediate analysis by radiologists and other specialists. This technology improves the speed and accuracy of diagnoses.

  • Smart Hospital Beds: These beds come with occupancy sensors that monitor patient movement and occupancy status. Healthcare staff can check the availability of beds and receive alerts when a patient needs assistance.

  • IoT-Based Patient Room Monitoring: Smart sensors in patient rooms can detect occupancy and adjust lighting, temperature, and other environmental factors to enhance patient comfort and conserve energy when rooms are unoccupied.

  • Medical Equipment Tracking: Hospitals use IoT-enabled tags and sensors to track the location and status of medical equipment such as defibrillators, infusion pumps, and wheelchairs. This ensures equipment availability and reduces the time spent searching for essential items.

  • Pharmaceutical Inventory Management: IoT devices are employed to monitor pharmaceutical inventory levels in hospitals and clinics. When stocks are low, automatic alerts are generated, helping to prevent medication shortages.

  • Temperature and Humidity Control: Healthcare facilities require precise control of temperature and humidity for patient comfort and the safe storage of medications and laboratory samples. IoT sensors and systems regulate these conditions, with remote monitoring and alerts for maintenance.

  • Airborne Pathogen Monitoring: IoT devices can monitor the air for potential pathogens and contaminants, providing early detection of airborne diseases or pollution, which is crucial for infection control in healthcare settings.

  • Smart Pill Dispensers: These devices dispense medication according to a prescribed schedule and send reminders to patients' smartphones. They also track medication adherence and can alert healthcare providers or family members if doses are missed.


Personal-use IoT Devices


  • Smart Home Lighting: Bulbs and fixtures that can be controlled and scheduled through a smartphone app or voice commands.

  • Smart Locks: Locks that can be controlled and monitored remotely, allowing you to grant access to your home or business securely.

  • Smart Appliances: Appliances like refrigerators, ovens, and washing machines that can be controlled and

  • Wearable Fitness Trackers: Some devices can monitor your health and activity levels.

  • Smartwatches: Watches with IoT capabilities, including notifications, health tracking, and even making calls.

  • Connected Cars: Vehicles equipped with sensors and connectivity features for navigation, diagnostics, and entertainment.

  • Pet Trackers: GPS-enabled devices that help you keep tabs on your pets' location and activity.

  • Connected Coffee Makers: Coffee machines that can be controlled and programmed through a smartphone app.

  • Smart Garden Devices: IoT devices for gardening and landscaping, including automated irrigation and soil monitoring.

  • Connected Gaming Consoles: Gaming consoles that offer online multiplayer gaming and content streaming.



What is an IoT Gateway Device?

An IoT gateway is a hardware device which includes software to act as a data protocol intermediary and data transferrer between IoT devices and the Cloud, a Central Data Centre, or an Edge Computing device. These gateways are responsible for collecting data from IoT device sensors, processing real-life data locally, and then transmitting it to the cloud or an edge computing platform for further analysis and use. They play a vital role in ensuring the security, reliability, and efficiency of IoT ecosystems (Examples of IoT Gateway Devices).




Examples of IoT Gateway Devices

Edge Gateways: Edge gateways are deployed at the edge of the network, close to IoT devices, and sensors. They are designed to perform data preprocessing and filtering tasks. Edge gateways are particularly useful in scenarios where low-latency processing is crucial, such as industrial automation and autonomous vehicles. Their key functionalities include data aggregation, protocol translation, and local analytics.


Cloud Gateways: Cloud gateways, also known as cloud connectors, facilitate the communication between IoT devices and cloud platforms. These gateways are responsible for securely transmitting data to the cloud, where it can be stored, analysed, and visualised. They often employ standard IoT protocols like MQTT or HTTP to send data to cloud-based applications.


Mobile IoT Gateways: Mobile IoT gateways are designed to support IoT deployments in remote or mobile environments. They can operate in areas without a fixed internet connection by utilising cellular networks and Data Sims. These gateways are commonly used in applications such as asset/fleet management, agriculture, and personnel/asset tracking.


Industrial IoT (IIoT) Gateways: IIoT gateways are tailored for industrial environments and are built to withstand harsh conditions. They often feature ruggedised designs and support industry-specific communication protocols like Modbus or OPC UA. IIoT gateways help in connecting and managing sensors, controllers, and machinery on the factory floor.


Multi-Protocol Gateways: Multi-protocol gateways are versatile devices that support multiple communication protocols simultaneously. This flexibility makes them ideal for IoT ecosystems with diverse devices using various communication standards. They can bridge the gap between devices that communicate using different protocols, ensuring seamless data exchange.


Security Gateways: Security gateways prioritise data security and privacy. They often incorporate advanced encryption and authentication mechanisms to protect data in transit and at rest. Security gateways are vital in applications where sensitive information is collected, such as healthcare and financial services.


Know more about our portfolio of IoT Gateway Devices.


Functionality of IoT Gateway Devices:

  1. Data Aggregation: IoT gateways collect data from multiple devices and sensors, aggregating it into a coherent dataset for further processing.

  2. Protocol Translation: They can translate data between different communication protocols, ensuring that devices with varying protocols can communicate effectively.

  3. Local Processing: Edge gateways perform local data processing and analytics, reducing the need to transmit large volumes of data to the cloud. This helps in reducing latency and conserving bandwidth.

  4. Data Filtering: IoT gateways filter out irrelevant or redundant data, ensuring that only meaningful information is transmitted, which improves network efficiency.

  5. Security: Many IoT gateways include security features such as firewalls, encryption, and intrusion detection to protect data and devices from cyber threats.

  6. Device Management: Gateways often provide device management capabilities, allowing administrators to configure, monitor, and update connected IoT devices remotely.

  7. Scalability: IoT gateways are designed to scale as the IoT ecosystem grows. They can handle an increasing number of devices and adapt to changing requirements.


Conclusion on IoT Gateways & IoT Devices

IoT gateways are indispensable components of IoT ecosystems, serving as bridges between IoT devices and the cloud. They come in various types, each tailored to specific applications and environments. Understanding the different types of IoT gateway devices and their functionalities is essential for designing efficient and secure IoT solutions that meet the unique needs of various industries and use cases. As IoT continues to evolve, these gateways will play an increasingly critical role in ensuring the success and sustainability of IoT deployments.


Contact us for further guidance on the Digital Transformation of your SMB or your Manufacturing Corporation.


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