IoT Level-5

A Level-5 IoT system has multiple end nodes and one coordinator node as shown in Figure 1.10. The end nodes perform sensing and/or actuation. The coordinator node collects data from the end nodes and sends it to the cloud. Data is stored and analyzed in the cloud and the application is cloud-based. Level-5 IoT systems are suitable for solutions based on wireless sensor networks, in which the data involved is big and the analysis requirements are computationally intensive.

Fig. 1.10: IoT Level-5.

Working of IoT Level-5

A Level-5 IoT system consists of multiple end nodes connected to a coordinator node. The end nodes are responsible for sensing environmental parameters and/or performing actuation. Instead of each node communicating directly with the cloud, all sensed data is first transmitted to the coordinator node.

The coordinator node acts as a gateway between the wireless sensor network and the Internet. It collects data from all the end nodes, performs basic processing if required, and forwards the aggregated data to the cloud. The cloud stores the data, performs computationally intensive analysis, and provides cloud-based applications for monitoring, visualization, and decision-making.

This architecture reduces communication overhead for the sensor nodes and is widely used in wireless sensor network (WSN) applications.

Example: Forest Fire Detection System

Let us consider an example of a Level-5 IoT system for forest fire detection.

The system consists of multiple nodes placed in different locations for monitoring temperature, humidity, and carbon dioxide (CO₂) levels in a forest.

The end nodes in this example are equipped with various sensors such as:

• Temperature sensor
• Humidity sensor
• Carbon dioxide (CO₂) sensor

The coordinator node collects the data from the end nodes and acts as a gateway that provides Internet connectivity to the IoT system.

The controller service on the coordinator device sends the collected data to the cloud. The data is stored in a cloud database.

The analysis of data is performed in the computing cloud to aggregate the data and make predictions. A cloud-based application is used for visualizing the data.

Features of IoT Level-5

• Multiple end nodes
• Single coordinator (gateway) node
• End nodes perform sensing and/or actuation
• Coordinator collects data from all end nodes
• Gateway provides Internet connectivity
• Cloud-based data storage
• Cloud-based data analysis
• Cloud-based application
• Suitable for wireless sensor network (WSN) applications
• Supports computationally intensive analytics

Applications of IoT Level-5

Some common applications of IoT Level-5 include:

• Forest fire detection
• Precision agriculture
• Smart irrigation systems
• Environmental monitoring
• Wildlife monitoring
• Industrial wireless sensor networks
• Smart city sensing applications
• Pipeline monitoring

IoT Level-5 is particularly suitable for large-scale wireless sensor network deployments where numerous sensor nodes communicate through a coordinator node. This architecture minimizes the communication burden on end devices while leveraging cloud computing for large-scale data storage, analysis, prediction, and visualization.