Evernight — Industrial Protocol Broker

Evernight is the industrial edge: a cross-platform broker that speaks the field protocols (Modbus, S7comm, MC Protocol, EtherNet/IP, EtherCAT, CAN, OPC UA, MQTT, …), polls sensors, evaluates alarms, and pushes events into the celestia-island stack. It also manages on-node model servers (ollama / whisper / vLLM) for edge inference.

Architecture at a glance

Field: PLC / MCU / sensors (Modbus, S7comm, MC, EtherCAT, CAN, OPC UA, …)
        ▼
   evernight (edge node)
   ├─ Protocol adapters: poll → decode → typed readings
   ├─ Alarm engine: threshold rules → trigger events
   ├─ Time series: buffered readings with double timestamps
   ├─ Record/replay: ring buffer → segmented storage → replay injection
   ├─ Model server manager: deploy ollama/whisper/vLLM (GPU-first)
   └─ Northbound: Unix-socket JSON-RPC triggers → entelecheia
        │
        ▼
   scepter (agents, industrial workflows, write approval)

1. Field protocols

Adapters convert each protocol's native read/write into typed readings and commands. The write path is gated: industrial writes require policy validation and human approval in the platform (OreXis + approval flows).

2. Sensing and alarms

• Polling loops per station with configurable periods; failures surface as health events.
• The alarm engine evaluates threshold rules over readings and emits topic routed events to the northbound trigger sink.

3. Time and recording

Readings carry dual timestamps (wall clock for display/audit, monotonic for ordering/fusion). A record/replay pipeline keeps a ring buffer, persists segments, and can inject replayed data back into the trigger pipeline — the shared prerequisite for the world-state and learning layers.

4. Edge model serving

model_server manages model runtimes on the node: model deployment on containers (ollama, whisper.cpp, vLLM) with GPU-first, CPU-fallback placement — the building block for reactive edge inference that never depends on an online LLM.

5. Northbound integration

Events flow to entelecheia's scepter via a Unix-socket JSON-RPC trigger sink (topic-routed); the device↔cloud gateway registers node identity and telemetry. Everything physical routes through evernight.

Env reference (subset)