Key result
The fully integrated ECG-SoC using a non-volatile MCU and noise-tolerant heartbeat detector consumes 6.14 μA of power.
The proposed ECG-SoC achieves low power consumption (6.14 μA) through normally-off computing and accurate heartbeat detection.
May enable extended wearable ECG monitoring; leaves open clinical validation and outcome studies.
This paper describes an electrocardiograph (ECG) monitoring SoC using a non-volatile MCU (NVMCU) and a noise-tolerant instantaneous heartbeat detector. The novelty of this work is the combination of the non-volatile MCU for normally off computing and a noise-tolerant-QRS (heartbeat) detector to achieve both low-power and noise tolerance. To minimize the stand-by current of MCU, a non-volatile flip-flop and a 6T-4C NVRAM are used. Proposed plate-line charge-share and bit-line non-precharge techniques also contribute to mitigate the active power overhead of 6T-4C NVRAM. The proposed accurate heartbeat detector uses coarse-fine autocorrelation and a template matching technique. Accurate heartbeat detection also contributes system-level power reduction because the active ratio of ADC and digital block can be reduced using heartbeat prediction. Measurement results show that the fully integrated ECG-SoC consumes 6.14 μ A including 1.28- μA non-volatile MCU and 0.7- μA heartbeat detector.
No takes yet. Share an insight, caveat, or question.
Izumi et al. (2015) studied this question. ECG monitoring SoC with non-volatile MCU and noise-tolerant heartbeat detector was evaluated on Power consumption. The fully integrated ECG-SoC using a non-volatile MCU and noise-tolerant heartbeat detector consumes 6.14 μA of power.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: