Research Article

eMeD: An Experimental Study of an Autonomous Wearable System with Hybrid Energy Harvester for Internet of Medical Things

Table 1

Comparison between different wearable systems with its characteristics.

ReferenceMethodologyEnergy sourcesPower managementEnergy preservation algorithm

[12]Using simulator to simulate performance of hybrid energy-harvesting protocolRF and thermoelectricConceptual (simulated)NA
[13]Integrated power conditioning using 0.13 μm technology and full-wave NMOS rectifier to harvest biomechanical and photovoltaic energyBiomechanical and photovoltaicConceptual (simulated)NA
[14]Wearable system that measures vital signs and powered using hybrid energyPhotovoltaic and thermoelectricSimple DC-DC boost converterNA
[8]Using transparent multiport micromeshed antennasPhotovoltaic and RFParallel DC-DC boost converterNA
[15]Flexible transparent antenna with transparent rectifying circuit and photovoltaic cellPhotovoltaic and RFADP5091 onlyNA
Proposed eMeDWearable system that measures vital signs and powered using hybrid RF and photovoltaic energyPhotovoltaic and RFADP5091 with load switchYes