Q18Internet of Things
Question
What are IoT levels? Explain all the six IoT levels with suitable examples and architectural block diagrams.
Answer
IoT levels classify systems from single-node local setups to multi-node distributed cloud architectures.
IoT system levels define the complexity and architecture based on where data is stored, processed, and analyzed. There are six defined levels:
Level 1: A single node handles sensing/actuation, local storage, and local analysis. (e.g., A simple smart thermostat without cloud access). Level 2: A single node performs sensing but uses cloud storage and application. (e.g., Smart agriculture sensor logging data to the cloud). Level 3: Single node, but the primary analysis is computationally intensive and occurs in the cloud. Level 4: Multiple independent nodes send data to the cloud where a central application integrates and analyzes it. (e.g., City-wide noise monitoring). Level 5: Multiple end nodes communicate with a coordinator node (gateway) that aggregates data before cloud transmission. (e.g., A WSN in a forest for fire detection). Level 6: Multiple independent nodes connect to the cloud, utilizing a centralized controller for system management and analytics.
