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Portable rescue device and a method for locating such a device
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
2007 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

A portable rescue device and a method for locating, by means of a first rescue device set in a search mode, a second rescue device set in a distress mode. In the method, a distress signal carrying a device identification is received from said second rescue device. A first bearing and a second bearing to the second rescue device are obtained. The first and second bearings are taken from a first and a second position, respectively. A distance between these positions is determined. A current distance and a current bearing to the second rescue device are determined on basis of the first and second bearings and the distance. The current bearing and the current distance are communicated to a user of the first rescue device. The portable rescue device is used for performing the method and for that purpose it includes a first communication unit for distress signal transmission and reception; a compass; a processor; a user interface; and a mode switch for switching between a search mode and a distress signal mode. The first communication device has an antenna structure that provides directional capability.

Place, publisher, year, edition, pages
2007.
Keywords [en]
rescue; avalanche; transmitter; receiver; radio waves;
National Category
Production Engineering, Human Work Science and Ergonomics Information Systems Signal Processing
Identifiers
URN: urn:nbn:se:miun:diva-10101OAI: oai:DiVA.org:miun-10101DiVA, id: diva2:273131
Patent
7245899 (2007-07-17)Available from: 2009-10-20 Created: 2009-10-20 Last updated: 2018-01-12Bibliographically approved

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Koptioug, Andrei

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