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Soft real-time smartphone ECG processing

Mobile health monitoring technology has the potential to bring a doctor’s office to the patient’s smartphone. In this context, we consider an end-to-end soft real-time out-ofhospital use-case that concerns transmission of patient ECG data from ST BodyGateway pulse sensor via an Android device (Patient App) to a Cloud server for ECG analysis and annotation and then to another Android device (Doctor App) for visualization. Using a prototype featuring ARMv7 technology (two Odroid-XU4s for Patient and Doctor App and one Zedboard FPGA board for server), we evaluate real-time performance and security overheads for supporting confidentiality, integrity and patient anonymity.