LAURA - LocAlization and Ubiquitous monitoRing of pAtients for health care support

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This works illustrates the LAURA system, which performs localization, tracking and monitoring of patients hosted at nursing institutes by exploiting a wireless sensor network based on the IEEE 801.15.4 (Zigbee) standard. We focus on the indoor personal localization module, which leverages a method based on received signal strength measurements, together with a particle filter to perform tracking of moving patients. We discuss the implementation and dimensioning of the localization and tracking system using commercial hardware, and we test the LAURA system in real environment, both with static and moving patients, achieving an average localization error lower than 2 m in 80% of the cases.

Technology

LAURA – Localization And Ubiquitous monitoRing of pAtients for health care support Politecnico di Milano A dvanced N etwork T echnologies Lab oratory A. Redondi, M. Tagliasacchi, M. Cesana, L. Borsani, F.Salice and P. Tarrìo Speaker: Alessandro Redondi 2 novembre 2010

The LAURA project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

The LAURA system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

The LAURA system Alessandro Redondi 2 novembre 2010

Related work – indoor localization Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RSSI Fingerprinting ,[object Object],[object Object],Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object]

Propagation model ,[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

RSSI-based localization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Self-calibration [Lim et al., 2010] ,[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Self-calibration [Lim et al., 2010] ,[object Object],[object Object],Alessandro Redondi 2 novembre 2010

RSSI-based localization Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object]

Localization ,[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Tracking Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object],[object Object]

Tracking ,[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Monitoring [Karatonis et al., 2006] Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object]

Monitoring [Karatonis et al., 2006] Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Network Architecture Alessandro Redondi 2 novembre 2010 ,[object Object],[object Object],[object Object]

Network Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Performance evaluation ,[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

Performance – static nodes Alessandro Redondi 2 novembre 2010

Performance – moving nodes Alessandro Redondi 2 novembre 2010

LAURA system overview Alessandro Redondi 2 novembre 2010 GATEWAY / LOCALIZATION ENGINE CLIENT 1 CLIENT 2 CLIENT N

Graphical user interface Alessandro Redondi 2 novembre 2010

Ongoing work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alessandro Redondi 2 novembre 2010

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