Connected Vehicle Telemetry Platform
Built an event-driven IoT telemetry architecture streaming 1.8 billion daily data points from 120,000+ connected vehicles with sub-5 second P99 end-to-end latency.
1.8B Events/Day120K Vehicles< 5s p99 Latency
Key Takeaways
- AWS IoT Core and Apache Flink stream processing ingested 21,000 events/second with sub-500ms safety alert routing.
- Delta Lake on Amazon S3 stores 2.8 PB of vehicle telemetry with time-travel query support for predictive warranty analytics.
- Real-time driver safety scoring enabled fleet operators to reduce high-risk driving incidents by 44%.
The Challenge
An automotive OEM collecting telemetry from 120,000 vehicles used a legacy batch processing pipeline with 6-hour data latency. Emergency collision and airbag alerts were delayed by hours, preventing real-time roadside emergency assistance.
Architecture & Technical Approach
- MQTT Telemetry Ingestion: AWS IoT Core authenticates vehicles via X.509 certificates and publishes events into Amazon Kinesis streams.
- Real-Time Stream Processing: Apache Flink processes event streams, routing critical safety triggers to emergency dispatch in under 500ms.
- Delta Lake Lakehouse: Stores compressed telemetry on S3 for Spark SQL analytics, battery degradation modeling, and warranty validation.
Quantitative Benchmarks & Results
| Platform Capability | Legacy 6-Hour Batch | Streaming Delta Lakehouse | Reliability Lift |
|---|---|---|---|
| Safety Alert Dispatch Latency | 3.0 Hours (Batch) | < 0.5 Seconds (Real-Time) | Instant Emergency Action |
| P99 End-to-End Ingestion Latency | 6 to 10 Hours | < 5.0 Seconds | Near Real-Time Fleet State |
| Fleet Capacity Scalability | 80,000 Vehicles | 1,000,000+ Vehicles | 12.5x Scale Headroom |
| Ingestion Data Backlog | Chronic Daily Delays | Zero Backlog | Continuous Real-Time Ingest |
Production Reliability & Lessons Learned
Partitioning Kinesis streams strictly by vehicle chassis ID preserved per-vehicle sensor event ordering without requiring expensive distributed database locks.