Location, Identification and Tracking at hospitals

Section 5: Location Based Services using ZigBee

Serafin ArroyoJosé Blasco

27th-28th April 2010

• INTRODUCTION

• State of the art

• Health strategies

• WHAT IS REQUIRED AT HEALTH ENVIRONMENTS

• TECHNOLOGY PROPOSAL

• HOW IT WORKS?

• Components

• Communications

• Location network

• FUNCTIONALITIES

• CONCLUSIONS

Contents

2

State of the art

3

Location technologies have been improved and become popular during last years

•Outdoor technologies such as GPS (Global Positioning System) or LBS (Location Based Service) consolidated in our day to day life.

•Indoor technologies still a huge discussion, and it seems very dependant of application associated

The possibility of always knowing where your patients are provides a tremendous opportunity to the hospital to

improve patient’s safety and clinical effectiveness.

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Health Strategies

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Clinical security in hospitals is a key issue

•World Alliance for Patient SafetyWashington DC, USA — 27 October 2004

"Please do me no harm“

•CISP (Research Center for Clinical Safety of Patients)

•Alert nº1: False identification of patients•Alert nº4: Mistakes on Surgery•Alert nº7: Safe administration of drugs and medicaments

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HAT IS REQUIRED?•Precision •Room level approach•Area level approach

•Real time access to information •Centralized system •Available for medical and administrative staff •On real time, everywhere

•Secure identification •Automatic security•Proximity identification

•Tracking and analytics •Record the patient’s habitual movements

• time spent in one area• time needed to move from one area to other

•Areas and rooms•Percentage usage of areas and rooms, •Load and flow or patients, etc.

•Define alerts

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ECHNOLOGY PROPOSAL•Cost/effective solution which fulfillsthe room level accuracy requirement

•Minimize the size and weight of tags patient

•Long battery life, avoiding recharges and replacement processes in the day to day work. •Scalable network:

•Location, identification and tracking•Network sensors

• Health • Ambient Assisted Living

•Coexistence with other wireless technologies and medical devices

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Components

Bracelets

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BeaconsProcess frames

from bracelets and send the

information back to the server

ServerNetwork

coordinator and location engine

Mobile beaconsAct as fixed beacons but carried by

a person. Location information can be consulted on them

Transmit periodic ZigBee frames with information about the patient

Ho

w it w

orks?

Communications

ZigBee Mesh network: Wristbands and mobile devices (End devices) RF Primary Beacons (Routers) RF Secondary Beacons (Gateways) RF - Ethernet Server – (Coordinator) Ethernet

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Ho

w it w

orks?

ZigBee aspects ZigBee 2007 Migrating to ZigBee-PRO

Network scalability (stochastic address assignment)

Mobility Higher security level (clinical data security and privacy)

Profiles Manufacturer Specific Profile testing (MSP) as first

approach Health care profile possibilities

Adding location attributes to be merged to the profile Compatible with location algorithm requirements Continua Health Alliance support

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Ho

w it w

orks?

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LAN

Coordinator

End- Device

End- Devices

Routers

Gateways

Centralized location engine

Location network

Mobile Identification

Ho

w it w

orks?

Identification

Clinical Security

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•Through the nearest reading of the bracelets•In specific areas with continuous real time information•Reliable patient details provided in different situations

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LIT

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Location Physical Security

Assets PatientsCombined right

Place Time ID

Real time access

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Traceability Patient’s movements and assets Recorded and shown in statistics such as length of time spent in one

place, length of time needed for going from one room to another etc… Usage of areas and rooms, load and flow or patients, etc.

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ConclusionsThe ZigBee based system at hospital allows:

Safe location of patients and assetsSecure identification, avoiding mistakes Increasing security based in patients'

detection in not allowed zonesTime optimization tracking and monitoring

patients in real time Cost effective solution for area level accuracy

and minimum battery consumption Scalability of the system Usability and easy wearable system

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Package

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VIDEO

Scenario

M A N Y T H A N K S F O R YO U R

A T T E N T IO N

Serafin ArroyoJosé Blasco

Ronda Auguste y Louis Lumiere 23, Nave 13 Parque Tecnológico de Valencia46980 · Paterna, Valencia · SpainTel: +34 96 182 71 77 Fax: +34 96 182 94 15 infotsb@tsbtecnologias.es http://www.tsbtecnologias.es