High-Availability Clinical Data Integration
A local edge architecture for collecting measurements from connected medical devices, consolidating them reliably, and delivering standards-based messages to hospital systems.
- ProblemContinuous device measurements must remain available despite constrained hospital-edge infrastructure.
- DecisionSeparate device collection, aggregation, high availability, storage, and HL7 delivery into explicit responsibilities.
- ValueDependable local processing with failover and a seven-day rolling data window.
Architecture
Raspberry Pi collectors connect to bedside devices and forward measurements to dedicated aggregation nodes. Keepalived provides virtual-IP failover between redundant nodes; the aggregation application performs the data processing.
Data handling
High-frequency vital-sign readings can be summarized into configurable reporting intervals—for example, one median heart-rate value from 60 readings. Waveform streams remain distinct from this aggregation path.