Gateways

Integrating edge devices that aggregate data from multiple sources.

Overview

Gateways are edge computing devices that collect data from multiple sensors or devices before forwarding to the cloud.

Use Cases

Industrial IoT

Aggregating factory sensor data.

Mobile Assets

Trailer with multiple sensors reporting through single gateway.

Remote Sites

Multiple assets at a location sharing connectivity.

Gateway Responsibilities

• Local collection - Gather data from connected sensors
• Aggregation - Combine related readings
• Buffering - Store data during connectivity loss
• Compression - Reduce bandwidth requirements
• Forwarding - Transmit to ModularIoT

Integration Approaches

Gateway as Device

Gateway appears as single device, manages sub-devices internally.

Gateway as Proxy

Gateway transparently forwards individual device messages.

Hybrid

Gateway reports own data plus forwards device data.

Protocol Considerations

• Local protocols (BLE, Zigbee, RS-485)
• Cloud protocols (MQTT, HTTP)
• Protocol translation at gateway
• Security at both hops

State Management

• Heartbeat from gateway
• Sub-device status tracking
• Connectivity change events