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Optical Wake-up from Power-off State for Autonomous Optical Sensor Nodes [article]

Uliana Dudko, Ludger Overmeyer
2020 arXiv   pre-print
In this study, we propose a novel approach of an optical wake-up for autonomous sensor nodes, which employs a solar cell as a wake-up signal detector.  ...  Wireless sensor nodes spend most of their time in standby mode and wake up periodically to send the measurement data.  ...  Thus, no power for keeping a microcontroller of a wireless sensor in standby mode is required.  ... 
arXiv:2005.09914v1 fatcat:lcdqefi6lvfv3noegb5wifnudm

Acoustic Wake-Up Receivers for Home Automation Control Applications

Amir Bannoura, Fabian Höflinger, Omar Gorgies, Gerd Gamm, Joan Albesa, Leonhard Reindl
2016 Electronics  
Our wake-up receiver consists of two parts: a low power passive circuit connected to a wake-up chip microcontroller and an active micro-electromechanical system (MEMS) microphone that receives the acoustic  ...  The receiver contains a low power wake-up module that reacts to an addressable acoustic 20-kHz sound signal that controls home devices that are connected to it.  ...  Amir Bannoura and Fabian Höflinger designed, developed and tested the functionality of the wake-up receiver.  ... 
doi:10.3390/electronics5010004 fatcat:vl4zacfawzggrd4ruza2ivszlu

On-Demand Sensor Node Wake-Up Using Solar Panels and Visible Light Communication

Carolina Carrascal, Ilker Demirkol, Josep Paradells
2016 Sensors  
In [7], a 695 pW standby power optical wake-up receiver for wireless sensor nodes is introduced. The receiver consumes 695 pW in standby mode and in active mode 140 pJ/bit at 91 bps.  ...  To significantly reduce, or eliminate completely, the energy waste caused by the standby (idle) mode of wireless sensor nodes, we propose a novel on-demand wake-up system, which allows the nodes to be  ...  Wake-up radios are small and low-or no-power devices that activate the wireless sensor nodes when an external wake-up call occurs.  ... 
doi:10.3390/s16030418 pmid:27011190 pmcid:PMC4813993 fatcat:ac3tc6yvmreqfepwgdu7dfvhoi

Ultra Low Power Wake-Up Radios: A Hardware and Networking Survey

Rajeev Piyare, Amy L. Murphy, Csaba Kiraly, Pietro Tosato, Davide Brunelli
2017 IEEE Communications Surveys and Tutorials  
This wake-up receiver technology represents 11 the ultimate frontier in low power radio communication.  ...  In 12 this paper, we present a comprehensive literature review of 13 the research progress in wake-up radio (WuR) hardware and 14 relevant networking software.  ...  695 pW in standby mode and 12.2 nW in 1302 active mode.  ... 
doi:10.1109/comst.2017.2728092 fatcat:v7uonj6q6jev7lhefifvgph6vq


To achieve this goal, a cerebellar area with a well-known cognitive role, Crus I-II, was examined.  ...  In this context, a protocol of Magnetic Resonance Spectroscopy was developed, able to characterize and quantify metabolites in a cerebellar area of interest. The [...]  ...  Unfortunately, these experiments are on standby, searching for a more easy available MRS facility.  ... 
doi:10.13130/marchese-silvia-maria_phd2020-01-20 fatcat:5636xfpzxvduxehii7ev3g5h6q