WiFi + satellite redundancy
The communication stack uses both local WiFi and Iridium links to keep data flowing when one path is unavailable.
Transmit
Dual-path communication architecture for reliable environmental data delivery.
Communication architecture overview
PEARL uses a dual-path communication architecture designed for reliable environmental data transmission in remote marine environments. Sensor data collected by the onboard Raspberry Pi is continuously logged, organized, and prepared for transmission through both WiFi and satellite communication pathways. When local WiFi connectivity is available, data is transferred directly to the server for faster synchronization. In parallel, a satellite-based Iridium communication system provides low-bandwidth long-range transmission capability for remote deployments beyond conventional network coverage. The system is designed to handle intermittent connectivity, resume interrupted transfers, and maintain continuous environmental data delivery from the field to the cloud.
Transmission reliability highlights
Reliable transfer workflow
Onboard files are logged and organized for staged upload, reducing data loss risk during unstable connectivity.
Remote deployment continuity
Low-bandwidth long-range satellite communication enables cloud delivery even beyond conventional network coverage.
Data Transmission
End-to-end file flow from onboard sensing to server ingestion through WiFi and Iridium pathways.
Continuous field-to-cloud delivery
The combined transfer strategy supports intermittent links, resumes interrupted uploads, and maintains dependable environmental data availability across long-duration remote missions.