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A Wireless Medical Surveillance System

 
A Wireless Medical Surveillance System

Description

Inhaltsangabe:Abstract:
This thesis has the development of a Digital Signal Processor (DSP) based on an Electro-Cardiogram (ECG) analysis system as its main theme. The system measures cardiac signals using two surface ECG leads from which individual heartbeats and pulse trends are extracted. Processed information can be presented on any Bluetooth enabled Personal Digital Assistant (PDA).
The system combines several technologies, e.g. signal measuring and forming unit, DSP hard- and software and a WAP1 server with Bluetooth interface. A basis for this project was a master's thesis that investigates and implements WAP over Bluetooth (see Chapters 5 and 6).
The focus of this work is hardware and software design of the ECG measurement and DSP system. The DSP software includes implementation of medical real-time algorithms for heart beat detection, average beat and pulse trend calculation. All algorithms have been implemented using the C language.

Inhaltsverzeichnis:Inhaltsverzeichnis:
Abstract2
Acknowledgement3
Contents4
Figures6

  1. Introduction8
  2. 1System overview8
  3. 2Functional description9
  4. Introduction into heart anatomy, cardiac signals and measuring methods10
  5. 1The heart and the atrial contraction10
  6. 2Cardiac signal characterization and measuring methods12
  7. Hardware14
  8. 1Hardware architecture14
  9. 2Analog measurement hardware design14
  10. 2.1System architecture15
  11. 2.2Patient safety aspects16
  12. 2.3Detailed system description17
  13. 3DSP hardware26
  14. 3.1Development board overview26
  15. 3.2TI TMS320C5402 DSP features27
  16. 3.3DSP and DSP board integration29
  17. Software31
  18. 1DSP software architecture31
  19. 2Main program32
  20. 3Sensor data acquisition and voltage supervision33
  21. 3.1McBSP33
  22. 3.2DMA controller36
  23. 3.3Timer operation39
  24. 4Digital signal processing40
  25. 4.1Signal preprocessing41
  26. 4.2Beat detection and pulse calculation49
  27. 4.3Average beat and pulse trend calculation50
  28. 4.4Preamplifier gain setting51
  29. 5WAP server communication51
  30. 5.1UART51
  31. 5.2EWS commands and UART ISR52
  32. 6Labview PC-application53
  33. Embedded WAP-server55
  34. 1Wireless Application Protocol55
  35. 1.1The WAP concept55
  36. 1.2WAP servers57
  37. 2Embedded WAP server (EWS)57
  38. 3Medical surveillance WAP application58
  39. Bluetooth interface60
  40. 1Introduction into Bluetooth60
  41. 2WAP over Bluetooth (WOB) Implementation62
  42. Conclusions63
  43. References64
Appendix A - ECG measurements hardware65
Appendix B - DSP software source code73
Appendix C [...]

Product details

EAN/ISBN:
9783838672267
Medium:
Paperback
Number of pages:
98
Publication date:
2001-01-01
Publisher:
Diplomarbeiten Agentur diplom.de
Manufacturer:
Unknown
EAN/ISBN:
9783838672267
Medium:
Paperback
Number of pages:
98
Publication date:
2001-01-01
Publisher:
Diplomarbeiten Agentur diplom.de
Manufacturer:
Unknown

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