Embed Size (px)
Citation preview
© Daconi Ltd 2005
Deploying wireless and Wi-Fi tracking in a hospital environment
Keith Jones, CEO, [email protected]
© Daconi Ltd 2005
ContentsDaconi Summary Hospital Requirements Location TechnologiesDeploying wirelessTracking in ContextHeartlands Pilot
© Daconi Ltd 2005
Daconi background Daconi Wireless founded January 2002
Turnkey wireless networking solutions for public hotspots, businesses, schools, hospitals
Leased line replacement, Community broadband UK focus
Daconi Healthcare (Ireland) founded 2004 to address Healthcare sector
Based on standard WiFi technology Vision:
To leverage WiFi and location tracking technology to produce innovative products for the healthcare sector, improving hospital efficiency and productivity of clinical professionals whilst enhancing patient safety
© Daconi Ltd 2005
Typical NHS Hospital Trust Facts 4,800 babies born every
year 153,000 people attend A&E 60,000 inpatients, 22,000 day case patients 450,000 outpatients £270 million budget 7,500 people work for a
Trust
© Daconi Ltd 2005
Wireless in Healthcare Hospital clinical staff are mobile workers Fixed IT infrastructure does not go all the way to
the bedside Time wasted in trips to fixed PCs Patient records are updated on paper at the
bedside Delay in updating database Possibility to introduce error
WiFi can save time and reduce error Most Hospitals already have some WiFi coverage
Leverage installed base
© Daconi Ltd 2005
Typical Hospital ConstraintsTheatre’s and X-ray areas lead linedWork in a Theatre can cost €10,000 per
theatre:Loss of Theatre during workCost of sterilisation
Large number of stakeholders so product champion is key
High staff numbers due to shiftsEasy of use, minimal training, critical
© Daconi Ltd 2005
Location technologiesGPS
Accuracy within 2-20m
Does not work well indoors and in the urban canyons of large cities
RFID
Needs special readers, tags
Can be used to locate object passing close to RF reader
Cell Phone Tracking EOTD, TDOA, CELL-ID
At best 100m accuracy
Not adequate accuracy for indoor tracking
WLAN
Cell-ID: Poor accuracy, Cannot differentiate one floor from the other
WLAN proprietary “location” access points: Needs special infrastructure and Costly, difficult to deploy
Software only solutions like Ekahau
Illustration by John MacNeillSource: Ekahau
© Daconi Ltd 2005
Location TechnologiesINDOOR URBAN RURAL
Required Accuracy
1-15m 15-150m 50-500m
Solutions for Standard
Infrastructure
?? ?? EOTD-MCELL-ID
Solutions for Proprietary Infrastructure
RFIDInfrared
A-GPS (when line-of-sight)
A-GPSEOTD
EKAHAU POSITIONING ENGINEWLAN: 1-10m accuracyGSM: 10-20m accuracy
DECT: under testing
EKAHAU POSITIONING ENGINEWLAN: 1-10m accuracyGSM: 10-20m accuracy
DECT: under testing
EKAHAU POSITIONING ENGINEWLAN: 5-15m accuracyGSM: 10-50m accuracy
EKAHAU POSITIONING ENGINEWLAN: 5-15m accuracyGSM: 10-50m accuracy
Source: Ekahau
© Daconi Ltd 2005
Steps for wireless deployment Survey existing WiFi installation
Using Ekahau Site Survey
Survey the 2.4GHz band using spectrum analyser e.g. Yellow jacket
Plan additional points based on required location accuracy WiFi tag needs to see 3 active AP’s for 1 to 10m accuracy
Install AP’s Check with Ekahau Site Survey Program Ekahau Positioning Engine database
© Daconi Ltd 2005
Survey Results - Interfering PIR
© Daconi Ltd 2005
Survey Results
© Daconi Ltd 2005
Choosing the right access point High performance enterprise features
802.11bg and 802.11a where appropriate Proactive security
Rogue AP detection Wi-Fi Protected Access, AES and 802.11i
Simple to deploy and manage Secure management WDS repeating and mesh capability Automatic channel selection and cell sizing
power control make deployment easier and optimizes coverage to match survey plan
Daconi have been using Orinoco since they were Lucent... Good management, reliable, feature rich Reasonably future proof Track & influence standards
© Daconi Ltd 2005
Tracking in Context - Pull or Push?
When you know the contextPush delivery is better
Web browsingEmailMedia streaming
Location based services(x, y, floor)
Push
© Daconi Ltd 2005
Location, location, location
The crux is knowing where a client device is
We know:• who is using the device• what their role is• what their permissions are
We can:• work out what information they need• deliver pertinent information to the user
© Daconi Ltd 2005
DATADATA VOICE/VIDEOVOICE/VIDEO
The Missing Piece!
WIRELESS LANWIRELESS LAN
Adding location to the standard Wi-Fi wireless LAN network without any proprietary hardware is the goal.
LOCATIONLOCATION
Source: Ekahau
© Daconi Ltd 2005
Ret
ail
Hea
lth
care
H-n
avT
M
app
licat
ion
War
eho
use
s
Man
ufa
ctu
rin
g
Co
rpo
rate
Location-Based Applications and ServicesLocation-Based Applications and Services
H-navTM secure architectureH-navTM secure architecture
Location in the WiFi Value Chain
Ekahau Positioning
Engine (X, Y, Floor, Area)
Input from Ekahau
Wireless LAN 802.11Wireless LAN 802.11
H-nav is a trade mark of Daconi Ltd.
© Daconi Ltd 2005
Motion-enabled patient tag Small, self-contained and inexpensive Monitors assets and people within existing WLAN
infrastructure Can announce to a server on the LAN
“I am moving”
Can be continuously tracked and monitored Time, date, ID, starting location “Help me, I have an emergency”
Motion-activated manage by exception
to manage power use Rechargeable
© Daconi Ltd 2005
H-navTM Hospital Navigation Application System User Requirements
Patient Safety Right site, right side surgery
Replace paper process Nurse, Anaesthetist and
Surgeon checkpoints Changes available in real time
Reduce errors Audit trail
updates/changes time stamp events
Simple to use Menu driven, 2 clicks
© Daconi Ltd 2005
BBC video
© Daconi Ltd 2005
H-navTM Benefits Improve hospital efficiency and save
moneyPatient tracked through process
Logs of decisions and timing available to management
Operating schedule updated in real timeChanges made by Nurse, Anaesthetist or
Surgeon available instantly to allPatient safety improved
Right: patient, site, side and operation
© Daconi Ltd 2005
Partners
Ekahau Oy • Positioning Engine and Site Survey Tools www.ekahau.com
Heartlands Hospital • facilitator of the pilotMr David Morgan, FRCS • application consultancy• pilot champion
Proxim Incwww.proxim.com
Department of Trade and Industrywww.dti.gov.ukSMART feasibility award
