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emergency page for fall detection
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heart rate monitoning and measurement using camera and flash
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home page
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our project idea in a image
I SMART HEALTH GUARD A Flutter-based AI-powered healthcare app focused on real-time health monitoring, emergency detection, and smart home control — designed for safety, accessibility, and rapid response. 🚨 Features Emergency Detection & Alert Fall detection using a machine learning model (CNN algorithm)
Auto-alert to emergency contacts if no response is detected
Loud alarm + live location sharing to 108 + emergency call
Health Monitoring Uses phone’s camera and flashlight (torch)
Employs Photoplethysmography (PPG) by analyzing fingertip blood flow
No need for external devices or wearables
Smart Appliance Control Manage fan, AC, lights, and more
Works with Wi-Fi and Bluetooth-enabled devices
Medication Reminders Push notifications to take medications
Mark meds as “taken” or “missed”
🧠 Why We Use Camera & Flashlight for Heart Rate Detection To measure heart rate without extra hardware, we use Photoplethysmography (PPG):
Flashlight illuminates the user’s fingertip
Camera detects blood volume changes via color/intensity variations
Real-time frame analysis estimates BPM (Beats Per Minute)
Permissions Required:
CAMERA: Captures blood flow under skin
FLASHLIGHT: Illuminates fingertip for accuracy
🛠️ Tech Stack Technology Purpose Flutter UI and app logic Syncfusion Charts Visualize heart rate trends Camera + Flash Heartbeat & vitals via PPG Flutter TTS / STT Elder-friendly voice alerts & commands Shared Preferences Store vitals & medication logs Local Notifications Medication & emergency reminders HTTP / MQTT Smart appliance API/communication Geolocator Real-time location sharing
❤️ How to Use Heartbeat Measurement Install the app on a real Android device (camera required)
Open the app and tap “Measure Now”
Place your fingertip gently over the camera + flashlight
Wait 15–30 seconds to get BPM and trend line
Use the bottom bar for:
Viewing vitals history
Emergency actions
🔒 Privacy First All health data is stored locally
Emergency alerts & location sharing happen only with permission
No data sent to cloud unless explicitly allowed by user
🚀 Future Scope Integrate ML models for predictive health alerts
Smartwatch integration for 24/7 passive monitoring
Cloud sync with Google Fit / Apple Health
Fully offline speech command capabilities
Your health, always under watch—smart, simple, and secure.
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