Abstract

Thedirectreflectionofhumanhealthstatusliesinphysiologicalsignals,andthe

acquisitionandmonitoringofphysiologicalsignalsarecrucialforhumanhealthmanagement.

Thisarticlepresentsaportable,low-cost,andintelligentmulti-physiologicalsignalacquisition

systemthatmeetstherequirementsofhomehealthmonitoring.

Thedesignedportablemulti-physiologicalsignalacquisitionsysteminthisarticleconsists

ofhardwareandsoftwarecomponents.Thehardwaresystemincludesafront-endsignal

acquisitionmodule,controlmodule,communicationmodule,andpowermodule.Thesoftware

systemconsistsofamobileAndroidappandacloud-baseddatabase.Thehardwaresystem

utilizestheADS1299front-endamplificationchip,MAX30102photoplethysmographysensor,

andLMT70temperaturesensortocapturephysiologicalsignalssuchaselectrocardiogram

(ECG),electroencephalogram(EEG),electromyogram(EMG),electrooculogram(EOG),body

temperature,andpulsewave.ThecontrolmoduleemploysanSTM32F103series

microcontroller.Communicationbetweenthehardwareacquisitionterminalandthemobileapp

isachievedusingaBluetoothmodule.Themobileappreceivesandinterpretsthesignals,

appliesalgorithmssuchasadaptivefiltering,wavelettransform,andmedianfilteringtoprocess

thesignals.Featuredetectionalgorithmsareutilizedtoanalyzethewaveformandcalculate

physiologicaldatasuchasheartrate,bloodoxygensaturation,heartratevariability,RR

intervals,andbodytemperature.TheAndroidappdisplaysthephysiologicalsignalwaveforms,

relatedphysiologicalparameters,anduploadsthecorrespondingmeasurementdatatothe

cloud-baseddatabaseforstorage.

Accordingtomarketapplicationstandards,thesystemunderwentstabilit