Real time QRS detector based on field programmable analog array

• Autorzy: Malcher A. , Pietraszek S. , Przybyła T. , Kidoń Z.
• Języki publikacji: EN

Abstrakty

EN

In some applications it is important to detect the QRS complex in the ECG waveform with possibly low time delay. Traditional software detectors of the QRS complex implement algorithms usually based on cascades of digital filters that introduce delays up to parts of a second. On the other hand, hardware QRS detectors fulfil the low delay requirements, but have worse adaptive features for the changing ECG shape. In this paper a new approach to QRS detection is presented. The proposed detector is based on a Field Programmable Analog Array (FPAA). This solution makes it possible to modify the parameters of particular blocks of the detector or even the whole structure without any changes in hardware, while the processing path is fully analog and does not introduce an additional delay. The most interesting feature of the FPAA is the dynamic reconfigurability. The parameters can be changed during runtime without any reset of the circuit or any other disturbances of the system functionality. The prototype QRS detector was built using the AN221E04 circuit from the Anadigm company.

Słowa kluczowe

EN

QRS detector; field programmable analog array; baseline drift; cardiac assist device; artificial stimulator; pacemaker

PL

detektor QRS; stymulator serca; sztuczny stymulator

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2009
• Tom: Vol. 13
• Strony: 183--188
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Malcher A.

• Institute of Electronics, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice. Poland

autor

Pietraszek S.

autor

Przybyła T.

autor

Kidoń Z.

Bibliografia

• [1] BARANOWSKIJ A.L., NIEMIRKO A.P.: Kardiomonitory Aparatura Nieprerywnogo Kontrola EKG, Radio i Swiaz, Moskwa, pp. 72-87, 1993.
• [2] AUGUSTYNIAK P., Przetwarzanie sygnałow elektrodiagnostycznych, Uczelniane Wydawnictwa Naukowo-Dydaktyczne AGH, Kraków, pp. 141-147, 2001.
• [3] MOODY, G.B.; MARK, R.G.; GOLDBERGER, A.L., PHYSIONET: A Web-Based Resource For The Study Of Physiologic Signals, Engineering in Medicine and Biology Magazine, IEEE, Vol. 20, Issue 3, pp. 70-75, May-June 2001.
• [4] MIT-BIH Arrythmia Database: http://www.physionet.org/physiobank/database/mitdb/
• [5] AN221E04 Field Programmable Analog Arrays - User Manual (2008) http://www.anadigm.com/_doc/UM021200-U007.pdf
• [6] AN221E04 Datasheet, Dynamically Reconfigurable FPAA with Enhanced I/O (2008) http://www.anadigm.com/_doc/DS030100-U006.pdf
• [7] AN221K04 v3 development board User Manual (from dec06): http://anadigm.com/_doc/UM022100-K003.pdf
• [8] IAR Embedded Workbench: http://iar.com/website1/1.0.1.0/50/1/
• [9] National Instruments LabVIEW Homepage: http://www.ni.com/labview/