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Robust ultrasound-based room-level localization system using COTS components | IEEE Conference Publication | IEEE Xplore

Robust ultrasound-based room-level localization system using COTS components


Abstract:

Location-based services have become very popular in recent years. Although many previous works targeted the problem of indoor localization, several reasons still prevent ...Show More

Abstract:

Location-based services have become very popular in recent years. Although many previous works targeted the problem of indoor localization, several reasons still prevent the widespread adoption of most systems' implementations. Some of these reasons are their insufficient availability, and the need for extensive node deployment and maintenance. In this work, we present a highly accurate room-level indoor localization system that is based on ultrasound technology. Our system is robust to noise, scalable, has a low complexity on the receiver, and does not require synchronization between transmitter and receiver. Moreover, it uses commercial off-the-shelf (COTS) components and does not require special hardware or additional infrastructure to be deployed. The system relies solely on ultrasound, and does not use any RF signals. To deal with the problem of signal interference, we explain how signal collisions can be detected, and we propose a method for collision avoidance. The system was implemented and tested in scenarios with realistic conditions. The results prove that the proposed system is accurate and robust to ambient noise. This work was conducted in the frame of the European project `SmartHeat', which aims to improve heating conditions of elderly people, and reduce energy consumption. It employs rooms' occupancy information with other inputs, to adapt the heating according to users' habits.
Date of Conference: 02-04 November 2016
Date Added to IEEE Xplore: 09 January 2017
ISBN Information:
Conference Location: Shanghai, China

References

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