Energy-efficient signal processors with silent mirror tracer for long-term activity monitoring

Jaeyong Jung, Jeounghun Cho, Daejin Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

An energy-efficient biosignal processing (BSP) system with a silent mirror tracer is proposed for long-term activity monitoring in battery-operated wearable devices. We implemented our approach using the PRUDAQ analog front stacked on the BeagleBone base station. A low-power highspeed sampler in PRUDAQ is directly integrated with the digital signal processing (DSP) unit in BeagleBone to reduce the communication overhead on connecting to any cloud-side host computer. The BSP on-chip timer-driven hardware directly drives the PRUDAQ sampler without CPU activation and silently traces samples into a mirrored buffer. The proposed method could significantly reduce the number of temporary pauses by running the interrupt service routines and frequent buffer flush to swap traced samples betweeen the host computer. The proposed BSP system results in a 15% reduction of total energy consumption by silently tracing incoming samples in case of extracting features from the 20 million samples for long-term activity monitoring applications such as electrocardiogram (ECG) signals.

Original languageEnglish
Title of host publicationProceedings - IEEE 17th International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages376-379
Number of pages4
ISBN (Electronic)9781728130248
DOIs
StatePublished - Aug 2019
Event17th IEEE International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019 - Fukuoka, Japan
Duration: 5 Aug 20198 Aug 2019

Publication series

NameProceedings - IEEE 17th International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019

Conference

Conference17th IEEE International Conference on Dependable, Autonomic and Secure Computing, IEEE 17th International Conference on Pervasive Intelligence and Computing, IEEE 5th International Conference on Cloud and Big Data Computing, 4th Cyber Science and Technology Congress, DASC-PiCom-CBDCom-CyberSciTech 2019
Country/TerritoryJapan
CityFukuoka
Period5/08/198/08/19

Keywords

  • Dual buffer
  • Energy-efficient signal processing
  • Interrupt service routine
  • Sampling

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