Key details at a glance
IoT architecture flows through four layers: Edge (sensors/actuators/gateway), Protocol (MQTT, HTTP, WebSocket, LoRaWAN), Cloud (AWS IoT/Azure Hub, timeseries DB), and Visibility (dashboards). Protocol choice depends on use case — MQTT for low-bandwidth reliability, WebSocket for real-time dashboards, LoRaWAN for long-range low-power sensors. Common India 2026 IoT use cases include factory OEE monitoring, cold-chain tracking, energy metering, fleet tracking, and remote patient health monitoring. Device uptime monitoring (targeting 98%+) is as critical to IoT success as the sensor data itself — a silent device is worse than no device.