Title :
Multi-usage of microwave Doppler radar in pervasive healthcare systems for elderly
Author :
Postolache, O. ; Girão, P. ; Pinheiro, E. ; Madeira, R. ; Pereira, J. M Dias ; Mendes, J. ; Postolache, G. ; Moura, C.
Author_Institution :
Inst. de Telecomun., Inst. Super. Tecnico, Lisbon, Portugal
Abstract :
Health assessment requirements for aging population have accentuated the need of ubiquitous and pervasive e-Health environments. Recently, new implemented embedded vital signs sensors were joined to ubiquitous computation in order to materialize Ubi-Health systems with lower price and augmented interoperability in comparison with traditional clinical instrumentation for in house health status monitoring needs. The work reports the utilization of the smart sensor based on 24GHz microwave FMCW (frequency modulated continuous wave) Doppler embedded in smart objects such as wheelchairs, walkers or crutches used by elderly, that perform cardiorespiratory signs and physical activity monitoring. According to the requirements of sensor identification and wireless data communication between the smart sensor and the advanced signal processing, data logging and web publishing unit, a combination between Bluetooth MAC based identification and Virtual Transducer Electronic Data Sheet was implemented. The system allows vital signs and motor activity monitoring, including gait characterization.
Keywords :
Bluetooth; CW radar; Doppler radar; FM radar; access protocols; cardiology; data communication; geriatrics; handicapped aids; intelligent sensors; medical signal processing; microwave measurement; patient monitoring; pneumodynamics; ubiquitous computing; wheelchairs; wireless sensor networks; Bluetooth MAC based identification; Ubi-Health systems; augmented interoperability; cardiorespiratory monitoring; crutches; data logging unit; embedded vital sign sensors; frequency 24 GHz; frequency modulated continuous wave Doppler radar; gait characterization; health assessment requirements; microwave Doppler radar; microwave FMCW Doppler radar; pervasive e-Health environments; pervasive elderly healthcare systems; physical activity monitoring; sensor identification requirements; signal processing unit; smart objects; smart sensor; ubiquitous computation; ubiquitous e-Health environments; virtual transducer electronic data sheet; walkers; web publishing unit; wheelchairs; wireless data communication; Doppler radar; Intelligent sensors; Medical services; Sensor phenomena and characterization; Wheelchairs; human computer interfacing; microwave Doppler radar; motor activity; smart sensors; walking aid; wavelet algorithms; wheelchair;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944313
