Start: Patient Interaction with Community Health Worker CHW

Tier 1: ARHA Device & On-Device AI Core

ARHA Hardware Device
Low-Cost Tablet with Optional
Portable Vital Sensors
Bluetooth

Multi-Modal Input Interface
Voice/Native Language,
Text, UI,
Image Capture, Vital Data
Import

Offline-First AI Core On-Device Slim AI Models for Triage, Symptom Analysis, &amp; Image Recognition

Structured Data Capture
Populates Local Electronic
Health Record EHR

Tier 2: Central Cloud

Centralized Secure
Database
Anonymized Aggregated
Health Data

Full-Featured AI Diagnostic
Engine
Runs heavier models on
richer data

Health Dashboard & Alert
System
For Regional Medical
Officers

Tier 3: Clinical Decision Support Layer

Generate Preliminary
Insights
Differential Diagnosis, Risk
Stratification,
Red Flags Identification

Protocol-Based Guidance
WHO/National guidelines
for
management, referral,
medication

Create Referral Package
Automated summary for
higher-level facility

Cloud AI Model Retraining &
Performance Monitoring

Push Model &amp; Protocol Updates to ARHA Devices

Schedule Async
Telemedicine
Consult with Doctor

Treatment Plan Provided
Education, Community
Management

Emergency Protocol
Activated
Direct Referral & Alert Sent

End: Patient Receives Care
CHW is Supported

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