EDGE

How edge gateways maintain data continuity

Network loss and power loss require different recovery mechanisms. Local storage, durable queues and server-side deduplication work together.

Caching and restart recovery

During a network outage, acquisition can continue writing to durable local storage. Once connectivity returns, uploading resumes from the acknowledged position. Power-loss recovery additionally requires queue state, source timestamps and upload progress to survive a restart.

Recovery does not eliminate duplicates

A network failure can occur after the server commits a record but before the device receives acknowledgement. Retries can therefore duplicate messages. Device identifiers and record IDs support idempotent writes; source timestamps distinguish recovered history from current measurements.

Validate realistic interruptions

Test brief and prolonged outages, power loss during upload and repeated interruptions. Compare source and platform records for completeness, duplicates and ordering. Specify local capacity, sampling frequency and retention; storage duration depends on the actual configuration.

Zhiyue technical note. Specific solutions depend on site conditions, agreed scope and validation.