A Pocket PC Based ECG Monitor Instructor: Professor Chen Sao-Jie Presented by: James Lin 林青頤, R Chiang Yen-an 姜彥安, R Date:June 15, 2004
Outline Introduction Methodology System Implementation Hardware Software Discussion Conclusions
Introduction Mobility, Communication capability Personal Digital Assistants (PDA) Tele-care Patient Tele-monitoring Devices Data, Images Tele-monitoring Non-clinical environments Homes, elder communities, ambulances.…anywhere Telemedicine Save time, reduce cost, improve medicine quality… Improve the quality of life of the people Uses:
Motivation
Methodology PDA + ECG Acquisition Module ECG Monitor ECG Monitor Mobility Communication capability Personal health care
System Implementation System implementation Block diagram Testing architecture HW/SW Co-design iPAQ Pocket PC Software Languages
Block Diagram of the Pocket PC Based ECG Monitor Block Diagram of the Pocket PC Based ECG Monitor Pocket PC (running Flymedic ECG) RS232 ECG Amplifiers and Filters ECG Acquisition Controller Optical Isolation ECG Data Acquisition Module Electrodes
Architecture of the Tele-monitoring System
Hardware/Software Hardware iPAQ Pocket PC Pre-amplifier and Filters Power Circuit ADC and CPU Communication Interface PCB layout Prototype Software Development Tools
iPAQ Pocket PC H3630 Microsoft Windows for Pocket PC Color screen with 240x320 resolution 206 MHz StrongARM SA bits RISC processor 32 MB SDRAM ; 32 MB Flash ROM One standard serial port 950 mAh Li Battery
Pre-amplifier
Filters Bandwidth = Hz
Power Circuit
ADC and CPU Sampling rate = 200Hz, 10-bit resolution
Communication Interface Baud rate = 57600BPS
Developmental Tools Pocket PC Microsoft embedded Visual C Server site Borland C++ Builder 5.0
Results Lead II ECG waveform real-time displayed on the Pocket PC’s screen and the ECG waveforms displayed on the local center in real time.
Discussion Combined with a GSM and GPS module, the monitoring device can be converted into an emergency care system. There would be a lot of use for this product in a hospital or other areas where constant health monitoring is needed. Hardware/Software design for biomedical needs.
Conclusions The prototype of the Pocket PC based ECG monitor has been developed and tested. PDA or Pocket PC based monitoring devices offer more mobility and communication capability and flexibility over the traditional ones. For long-term recording, the power consumption of Pocket PC would determine the recording time. Personal health management can also be accomplished via a customized program.
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