Internet of Things (IoT) – Summary Notes
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1. Introduction
2.
IoT (Internet of Things) refers to a network of physical devices embedded with sensors,
software, and connectivity that allow them to collect, exchange, and act on data.
Goal: Smart automation and real-time decision-making.
Examples: Smart homes, wearable devices, smart cities, industrial IoT.
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2. IoT Architecture
Typical IoT Architecture (4 Layers):
1. Perception Layer (Sensors/Actuators)
Detects physical parameters (temperature, pressure, motion)
Converts them into digital signals
2. Network Layer
, Transfers data from devices to servers/cloud
Protocols: Wi-Fi, Bluetooth, Zigbee, LoRa, NB-IoT
3. Processing / Middleware Layer
Stores, analyzes, and processes data
Often cloud-based or edge computing
4. Application Layer
Provides user services and interfaces
Examples: Smart home apps, health monitoring dashboards
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3. Key Components
Component Function
Sensors Collect data from the environment
Actuators Perform actions based on commands
Gateway Connects devices to the internet
Cloud Platform Data storage, analytics, and processing
---
1. Introduction
2.
IoT (Internet of Things) refers to a network of physical devices embedded with sensors,
software, and connectivity that allow them to collect, exchange, and act on data.
Goal: Smart automation and real-time decision-making.
Examples: Smart homes, wearable devices, smart cities, industrial IoT.
---
2. IoT Architecture
Typical IoT Architecture (4 Layers):
1. Perception Layer (Sensors/Actuators)
Detects physical parameters (temperature, pressure, motion)
Converts them into digital signals
2. Network Layer
, Transfers data from devices to servers/cloud
Protocols: Wi-Fi, Bluetooth, Zigbee, LoRa, NB-IoT
3. Processing / Middleware Layer
Stores, analyzes, and processes data
Often cloud-based or edge computing
4. Application Layer
Provides user services and interfaces
Examples: Smart home apps, health monitoring dashboards
---
3. Key Components
Component Function
Sensors Collect data from the environment
Actuators Perform actions based on commands
Gateway Connects devices to the internet
Cloud Platform Data storage, analytics, and processing
