PROJECT TOPICHealthcare, Assistive & Bio-Mechatronics
Contactless Vital Sign Sentinel
A biomedical telemetry concept studying 60GHz frequency-modulated continuous-wave (FMCW) radar Doppler processing and video photoplethysmography to infer breathing patterns and heart rate without skin contact.
Non-Invasive Biometric Radar Telemetry
- ✓Monitors vital respiration patterns through blankets and clothing without touch.
- ✓Separates tiny heart-rate micro-oscillations from larger breathing motions via frequency filters.
- ✓Provides non-obtrusive monitoring for sleep study and eldercare test environments.
The Engineering Challenge
Problem / Objective
Wired vital sign sensors cause skin irritation in neonatal or burn units and detach when patients move in bed.
Conceptual Signal Flow
System Concept
60GHz FMCW Radar → Phase Demodulation & FFT → Heart/Respiratory Separation → Continuous Telemetry.
Architecture Modules
160GHz mmWave Radar Front-End
2Digital Signal Processing Filtering Core
3Video Photoplethysmography Backup Sensor
4Telemetry Dashboard & Out-of-Range Alarm
Hardware Categories
60GHz FMCW Radar ModuleDSP MicrocontrollerRGB Video SensorEnclosure
Technologies & Software
mmWave RadarDoppler Signal ProcessingBiomedical TelemetrySignal DecompositionFFT Peak Detection AlgorithmBandpass Filter Pipeline
Engineering Considerations & Edge Cases
- Gross body movement artifacts masking subtle chest displacements
- RF wave absorption from thick bedding
Applications
Eldercare non-contact sleep tracking
Laboratory animal monitoring
Driver drowsiness detection
Engineering Inquiry & Collaboration
Interested in Developing this Architecture?
Connect directly with Tamizh Tech engineers in Coimbatore to discuss mechanical fabrication, sensor selection, firmware implementation, or turnkey system commissioning.