A low-cost data logging platform is presented that provides long-term operation in remote or submerged environments. Three premade "breakout boards" from the open-source Arduino ecosystem are assembled into the core of the data logger. Power optimization techniques are presented which extend the operational life of this module-based design to >1 year on three alkaline AA batteries. Robust under...

This paper describes a method and a piece of equipment for capturing data about the use of a mobile multimodal device in natural settings . The equipment includes an instrument worn by the user to capture his or her perspective while moving, a means of capturing a wider view of the context and a multimodal data logger.

Bibliography This special bibliography contains references that have been sent to us as well as citations for abstracts from scientific meetings. It is not intended to be a complete bibliography, rather it presents a sample of the work that has been done with this equipment. Abstract 320.I, pg. A173. L.F. 2003. Self-reported sleep quality and fatigue correlates with actigraphy in midlife women ...

Variometer is a device that informs user about his/her vertical velocity. It is particularly useful in paragliding, hang gliding and other air sports. The device has to inform user about vertical velocity by sound. Ground position of user is important too, because of complex functions (e.g., computing flying range, altitude above ground) and after-flight evaluation. This paper deals with the ha...

The body tilt angle of a fish has a large effect on the acoustic target strength. For an accurate estimation of fish abundance using acoustic methods, it is necessary to measure body tilt angles in free-ranging fish. We measured diurnal body tilt angle distributions of threeline grunt (Parapristipoma trilineatum) while swimming in schools in a fish cage. Micro-acceleration data loggers were use...

Proliferation of technologies and services related with wireless sensor network has made a great impact on all aspects of life. Research and development in this domain naturally calls for real-time WSN testbeds. Present day WSN testbeds are expensive and complex in operation and simulators are unable to justify real-time field interaction. Design of SWiFiNet completely eliminates expensive back...