Symbolic object localization through active sampling of acceleration and sound signatures

Kai Kunze, Paul Lukowicz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Citations (Scopus)


We describe a novel method for symbolic location discovery of simple objects. The method requires no infrastructure and relies on simple sensors routinely used in sensor nodes and smart objects (acceleration, sound). It uses vibration and short, narrow frequency 'beeps' to sample the response of the environment to mechanical stimuli. The method works for specific locations such as 'on the couch', 'in the desk drawer' as well as for location classes such as 'closed wood compartment' or 'open iron surface'. In the latter case, it is capable of generalizing the classification to locations the object has not seen during training. We present the results of an experimental study with a total of over 1200 measurements from 35 specific locations (taken from 3 different rooms) and 12 abstract location classes. It includes such similar locations as the inner and outer pocket of a jacket and a table and shelf made of the same wood. Nonetheless on locations from a single room (16 in the largest one) we achieve a recognition rate of up to 96 %. It goes down to 81 % if all 35 locations are taken together, however the correct location is in the 3 top picks of the system 94 % of the times.

Original languageEnglish
Title of host publicationUbiComp 2007
Subtitle of host publicationUbiquitous Computing - 9th International Conference, UbiComp 2007, Proceedings
PublisherSpringer Verlag
Number of pages18
ISBN (Print)3540748520, 9783540748526
Publication statusPublished - 2007
Externally publishedYes
Event9th International Conference on Ubiquitous Computing, UbiComp 2007 - lnnsbruck, Austria
Duration: 2007 Sept 162007 Sept 19

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4717 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other9th International Conference on Ubiquitous Computing, UbiComp 2007

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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