VLSI FRIENDLY ECG QRS COMPLEX DETECTOR FOR BODY SENSOR NETWORKS__________________________________________Project byK.BijugirbaReg.No :960211403007M.E.(CS)- II year

SupervisorMs.R.Pugalpriya M.E.,A.P/ ECEArunachala College of Engineering for Women

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OBJECTIVE___________________________________________To present a VLSI friendly ECG QRS detector for BSN using Mathematical morphology.**/36

EXISTING METHODS___________________________________________________________________________________________________**/36

Sl.NoTitle of the paperAuthorYearMeritsDemerits1Real time QRS detection algorithmJ.Pan etal.1985Automatical-ly adjust threshold & parameters periodically.Dual threshold useful only if heart beat regular.Some beats are not detected2ECG beat detection using filter banksV.X.Afonso etal.1999Beat detection performed at lower rate.Very noisy.3Quantitative investigation of QRS detection rules using MIT/BIH arrhythmia databaseP.S.Hamilto-netal.1986All beats detected.Fewer false detection.Search-back beat detection latency time high.Not useful when immediate beat detection needed.

EXISTING METHODS (contd)_________________________________________________**/36

Sl.NoTitle of the paperAuthorYearMeritsDemerits4Real time microprocessor QRS detector system with 1ms timing accuracy for measurement of HRVA.Ruha etal.1997No search-back method employed.Timing SD of less than 1ms achieved.Large power consumptionIncrease false positive.5Neural-network based adaptive matched filtering for QRS detection.Q.Xue etal.1992Better adap-tation to sig-nal changes.Less comp-utation time.Need more powerful analytical tools.6Low complexity, low power, progr-ammable QRS dete-ctor based on WT for pacemaker ICT.Hoang etal.2006Reduce dynamic and leakage power in low frequency areaT point value affect decision of threshold comparator.

EXISTING METHODS (contd)

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Sl.NoTitle of the paperAuthorYearMeritsDemerits7Adaptive QRS detection based on Maximum A posteriori methodO.Pahlm etal.1982Detector adapts quickly to the changes in QRS MorphologyOptimization procedure is time consuming.8Removal of base-line wander and power-line interference from the ECG by an efficient FIR filter with reduced number of tapesJ.A.Van Alste etal.1985Reduce base-line wander and power-line interference.Amount of filtering is not specified.

EXISTING METHODS (contd)___________________________________________**/36

Sl.NoTitle of the paperAuthorYearMeritsDemerits7Adaptive QRS detection based on Maximum A posteriori methodO.Pahlm etal.1982Detector adapts quickly to the changes in QRS MorphologyOptimization procedure is time consuming.8Removal of base-line wander and power-line interference from the ECG by an efficient FIR filter with reduced number of tapesJ.A.Van Alste etal.1985Reduce base-line wander and power-line interferenceAmount of filtering is not specified.9VLSI Friendly ECG QRS Complex detector for BSNChris F. Zhang etal.2012No need of prior frequency knowledgeAccuracy is reduced.

Flow chart**

Existing algorithms**

PROPOSED ALGORITHM _______________________________________________

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Explanation of the previous slide in steps________________________________________________

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results and discussion**

Database nameSome sample images from that data base**

APPLICATIONS________________________________________

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