VirtualSense : A Java-Based Open Platform for Ultra-Low-Power Wireless Sensor Nodes
Joint Authors
Bogliolo, Alessandro
Lattanzi, Emanuele
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-08
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Electronic engineering
Information Technology and Computer Science
Topics
Abstract EN
Idleness has to be carefully exploited in wireless sensor networks (WSNs) to save power and to accumulate the energy possibly harvested from the environment.
State-of-the-art microcontroller units provide a wide range of ultra-low-power inactive modes with sub-millisecond wakeup time that can be effectively used for this purpose.
At the same time they are equipped with 16-bit RISC architectures clocked at tens of MHz, which make them powerful enough to run a Java-compatible virtual machine (VM).
This makes it possible to bring the benefits of a virtual runtime environment into power-constrained embedded systems.
VMs, however, risk to impair the effectiveness of dynamic power management as they are seen as always-active processes by the scheduler of the operating system in spite of the idleness of the threads running on top of them.
Avoiding to keep sensor nodes busy when they could be idle is mandatory for the energetic sustainability of WSNs.
While most of the tasks of a sensor node are inherently event-driven, the functioning of its hardware-software components is not, so that they require to be redesigned in order to exploit idleness.
This paper presents VirtualSense, an open-hardware open-source ultra-low-power reactive wireless sensor module featuring a Java-compatible VM.
American Psychological Association (APA)
Lattanzi, Emanuele& Bogliolo, Alessandro. 2012. VirtualSense : A Java-Based Open Platform for Ultra-Low-Power Wireless Sensor Nodes. International Journal of Distributed Sensor Networks،Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-450186
Modern Language Association (MLA)
Lattanzi, Emanuele& Bogliolo, Alessandro. VirtualSense : A Java-Based Open Platform for Ultra-Low-Power Wireless Sensor Nodes. International Journal of Distributed Sensor Networks No. 2012 (2012), pp.1-16.
https://search.emarefa.net/detail/BIM-450186
American Medical Association (AMA)
Lattanzi, Emanuele& Bogliolo, Alessandro. VirtualSense : A Java-Based Open Platform for Ultra-Low-Power Wireless Sensor Nodes. International Journal of Distributed Sensor Networks. 2012. Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-450186
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450186