Data Flows

Status: DRAFT

DF-1 Telemetry

Inverter -> RS485 -> Gateway -> NATS -> Backend -> Database

Data classes:

• energy telemetry
• inverter status
• device health
• firmware/software version

DF-2 Control command

Backend -> NATS -> Gateway -> validation -> Modbus -> Inverter

Required controls:

• authenticated sender/service
• authorized device subject
• command schema validation
• replay/idempotency strategy
• audit record
• result acknowledgement

DF-3 Device registration

Current model:

customer e-mail + Raspberry Pi serial -> backend device record

TODO: document proof-of-possession / activation procedure used during initial registration.

DF-4 Software update

TODO: document package build, signing, distribution, verification, installation and rollback.