Samara: Low-cost Deployment for Environmental Sensing Using Passive Autorotation. Valdes, S., Urza, I., Pounds, P. E. I., & Singh, S. P. N. In Robotics: Science and Systems (RSS) Workshop on Bio-inspired Robotics, 2012.
Samara: Low-cost Deployment for Environmental Sensing Using Passive Autorotation [link]Paper  abstract   bibtex   
Distributed sensing offers a variety of benefits for environmental monitoring applications such as bushfire fighting. The cost and delay in distributing sensors over a large geographic area makes ad hoc aerial deployment via air-drop a compelling technology. However, the need to ruggardise sensors to survive free-fall impact, or the cost of including aerodynamic arrest devices such as parachutes for soft-landing, makes aerial deployment less viable. We present a method for constructing low-cost light-weight sensor modules that incorporate a mono-wing into the structure of the sensor PCB. This allows the sensors to autorotate to a soft-landing after release from the air, without additional processing or fabrication steps.
@INPROCEEDINGS{rss.samara.2012,
  author = {Samuel Valdes and Ignacio Urza and Paul E. I. Pounds and Surya P.
	N. Singh},
  title = {Samara: Low-cost Deployment for Environmental Sensing Using Passive
	Autorotation},
  booktitle = {Robotics: Science and Systems (RSS) Workshop on Bio-inspired Robotics},
  year = {2012},
  abstract = {Distributed sensing offers a variety of benefits for environmental
	monitoring applications such as bushfire fighting.  The cost and
	delay in distributing sensors over a large geographic area makes
	ad hoc aerial deployment via air-drop a compelling technology.  However,
	the need to ruggardise sensors to survive free-fall impact, or the
	cost of including aerodynamic arrest devices such as parachutes for
	soft-landing, makes aerial deployment less viable.  We present a
	method for constructing low-cost light-weight sensor modules that
	incorporate a mono-wing into the structure of the sensor PCB.  This
	allows the sensors to autorotate to a soft-landing after release
	from the air, without additional processing or fabrication steps.},
  pdf = {RSS2012_Samara_Paper.pdf},
  url = {https://wiki.cites.uiuc.edu/wiki/display/wkshplocomotion/Home}
}

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