Music-Based Positioning Aided By Dead Reckoning

a technology of dead reckoning and music, applied in the field of mobile electronic systems, can solve the problems of inability to perform mp sporadically, inability to accurately predict the position of the music, etc., to achieve the effect of improving the accuracy of dead reckoning, improving the temporal coverage of music-based positioning, and extending the temporal coverag
US20140372027A1Inactive Publication Date: 2014-12-18HANGZHOU HAICUN INFORMATION TECH +1
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HANGZHOU HAICUN INFORMATION TECH
Publication Date
2014-12-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

Music-based positioning (MP) provides positioning service only sporadically and therefore is not suitable for indoor positioning. The present invention discloses system and method for music-based positioning aided by dead reckoning (MP-DR). At each signature burst (i.e. a highly unique short musical segment suitable for positioning), musical sounds are used for positioning. Between signature bursts, positioning is performed by dead reckoning (DR). MP-DR is an ideal combination of MP and DR: DR extends temporal coverage for MP, while MP provides the much needed periodic calibrations for DR.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority of a provisional application entitled “Music-Based Positioning Aided By Dead Reckoning”, Ser. No. 61 / 835,527, filed Jun. 14, 2013.BACKGROUND

[0002] 1. Technical Field of the Invention

[0003] The present invention relates to the field of mobile electronic system, and more particularly to indoor positioning using human consumable sounds such as music.

[0004] 2. Prior Arts

[0005] Sound has been suggested as a medium for positioning. For positioning in a large venue like a shopping mall or a supermarket, an important metric is the range of the sound. To limit the number of sound sources (e.g. loudspeakers), the sound used for positioning preferably has a long range.

[0006] Ultrasound, although widely used for ranging, fails in this aspect. Ultrasound suffers from severe attenuation when transmitted in air. For a distance of 100 meters, the transmission loss for a 40 kHz ultrasound is ˜140 dB (FIG. 1). In fact, ultrasoun...

Claims

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