Maintaining a consistent JSON-based digital twin of millions of connected vehicles requires lightweight delta-state synchronization over intermittent 5G networks. This architecture decouples edge sensor sampling from cloud streaming, applying conflict-free replicated data types (CRDTs) to reconcile offline changes reliably.
In an automotive digital twin architecture, state is split into two documents: 'reported' (what the vehicle edge ECUs currently confirm) and 'desired' (what a fleet manager, mobile app, or cloud service requests). When a user remotely triggers pre-conditioning from their smartphone, the cloud modifies the 'desired' climate temperature. The vehicle shadow daemon consumes this delta via MQTT, commands the HVAC actuator, and emits a 'reported' update upon completion.