Doc Type: Patent Application

A Positioning Device

Abstract

The invention relates to a method and arrangement for improving operation of a position detector (101) arranged to create location-indicating data (102) on the basis of a received radio signal (103). A solution according to the invention comprises a motion sensor (105) arranged to create motion-indicating data on the basis of a physical phenomenon associated with mechanical movement and a control unit (106) arranged to control creation of the location-indicating data on the basis of the motion-indicating data. The motion-indicating data expresses whether the position detector is moving. Switching the position detector off or into a power saving mode when the position detector is not moving reduces average power consumption. Preventing the location-indicating data from drifting when the position detector is not moving makes it possible to report trips with more accurate trip start locations and trip end locations.


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Document History
  • Publication: Nov 6, 2008
  • Application: Apr 30, 2007
    WO FI 2007000115 W
  • Priority: Apr 30, 2007
    FI FI 2007000115 W

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