SALUS.MATERNA is a solar-powered, AI-driven vital signs monitor designed to reduce maternal mortality in rural Kenya. It tracks SpO₂, temperature, and cuffless blood pressure, using ML to detect risks like PPH and sepsis. Alerts are sent via SMS/call, with data streamed to Azure cloud.
# SALUS.MATERNA — AI & Solar-Powered Maternal Health Monitoring System
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## 🏥 Overview
SALUS.MATERNA is a solar-powered, IoT-enabled maternal health monitoring device designed for rural Kenyan healthcare facilities. It was developed to address the critical infrastructure gaps that contribute to Kenya's maternal mortality rate of **355 deaths per 100,000 live births** — equivalent to roughly 16 women every single day.
Rural facilities face three core, interconnected problems this system targets:
1. **No continuous monitoring** — intermittent manual checks every 4–6 hours miss early deterioration
2. **Frequent power outages** — blackouts render conventional electronic equipment non-functional
3. **No remote alerting** — understaffed clinics have no way to notify off-site clinicians of deteriorating patients
SALUS.MATERNA addresses all three simultaneously through continuous vital signs monitoring, solar-powered off-grid operation, real-time cloud telemetry, and remote SMS/voice call alerts — combined with an ensemble machine learning model for early detection of maternal complications including PPH, sepsis, hypertensive disorders, and pulmonary embolism.
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## ✅ Key Features
- **Continuous vital signs monitoring** — Heart Rate, SpO₂, Temperature, and cuffless Blood Pressure
- **Novel cuffless BP measurement** — Piezoelectric + PPG sensors along the radial artery, using Pulse Wave Velocity derived from the Moens-Korteweg equation and Beer-Lambert PIR model
- **Solar-powered operation** — Full off-grid functionality via 6V PV panel and Li-ion battery
- **Cloud telemetry** — Real-time data upload to Microsoft Azure at 60-second intervals
- **Remote alerting** — Twilio SMS and voice calls delivered within 60 seconds of a detected risk
- **On-device alerts** — OLED display, LED indicators, and buzzer for local notification
- **Ensemble ML model** — Early detection of PPH, sepsis, hypertensive disorders, and pulmonary embolism
- **Web dashboard** — Real-time …