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Siemens Customer Education SymposiumSharing ideas. Expanding knowledge.
Total Wireless Convergence – Data, Voice, Medical Equipment, Location Tracking
Session 6 - 254
Nick Volosin, CCNA, VCP, CCAISS Director of Technical SvcsKaweah Delta Health Care District
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Kaweah Delta Health Care District
581 licensed beds Not for profit organization 70,000 emergency visits annually 9 locations within 25 mile radius Serves population of 575,000 over
6,213 square miles Siemens Soarian SC 2.0C5 ICO Siemens Invision RCO for financials
http://www.kaweahdelta.org
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Agenda
The six rights to support reason for wireless
Beginning of wireless at Kaweah Delta
Starting to go beyond data services for wireless
Growth drivers/trends
Tools to monitor and configure wireless
Describe opportunities and challenges
Please don’t hesitate to ask questions… interactive
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Information Management Division Vision
To Make accessible The right information (accurate, timely)
In the right format (electronic, pda, fax, paper, phone)
At the right place (office, home, unit, room)
At the right time (anytime, always available)
To the right person (physicians, clinicians, techs)
At the right value (appropriate cost/beneft relationship)
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Wireless began with a small need
Pharmacy wanted on-line access to drug information databases while on the nursing units of the main hospital.
The project allowed us to put 10 access points to support the 5 roaming HP iPaqs.
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“If you build it, they will come” – Field of Dreams
Soon, other wireless applications followed
Physician PDA & Laptop access
Siemens Invision PDAccess
Siemens Invision Clinical documentation using tablets & COWs
The need for expanded coverage and reliability grew
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Wireless becomes a “Solid Solution”
The advantages of wireless devices are realized
Clinicians rely on wireless devices as part of normal workflow
-- COW Halloween contest
winner… Johnny 5 is alive
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Voice over WLAN…. New challenges
With the decision to move to Cisco wireless phones, the wireless configuration needed to be changed.
Additional access points
Different antennas for different building environments
Tools to monitor coverage, utilization
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Medical-Grade Network
Responsive
Maximizing the effectiveness of application and device performance to intelligently distribute information to improve quality of care
Protected
Protecting the information and physical assets of the hospital environment
Resilient
A highly reliable infrastructure that meets the network challenges and continually changing business requirements of healthcare
Interactive
Connecting technology and caregivers to create greater collaboration and knowledge
A Responsive, Protected, Resilient, Interactive Solution
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What Does an Enterprise WLAN NeedTo Create a Good Voice Environment?
On
e In
teg
rate
d N
etw
ork
Security
QoS
Roaming
Management
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The Steps to Success
Design
Implement
Prepare
PlanOptimize
Operate
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Cell Coverage
Cell Overlap
Site Survey Tools
Channel Re-use
Data Rates
Signal Noise Ratio
Wireless Site Survey
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Wireless AP
Channel 11
Channel 6
Channel 11Wireless AP
Wireless AP
Wireless AP
Wireless AP
1st Floor
2nd Floor
Channel 1
Wireless AP
Channel 1
Wireless AP
Channel 6
Wireless AP
Site Survey in 3D
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Spectrum Analysis: Sample 1
AP & client receiverthreshold -86 dBm
Cisco wireless voicedesign threshold -67 dBm
DSS signal trace from two pre-existing WLAN APs
DSS signal above the upper blue reference line shown below can be considered acceptable (from a WLAN design standpoint) for Cisco 7920 wireless phones.
Probable 2.4 gHz cordless phone/headset signal
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MetaGeek.net Wi-Spy – Great $99 tool
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Cisco Cognio Spectrum Expert – few thousand $$
• Provides more detailed testing than Wi-Spy
• Creates trace files that Cisco and other wireless experts can review
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Wireless LAN QoS
Improved Access to WLAN
Improved Access to WLAN
Video Video
BackgroundBackground
© 2003 Cisco Systems, Inc. All rights reserved.
Voice Voice
Best effortBest effort
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VoWLAN in the Office: Increased Productivity
Eliminate missed calls and voice mail tag
Reduce cell phone usage within campus, leverage least call routing & IP Communications features
Consistent user experience for improved user satisfaction
181818
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VLANs – Voice should be on a separate VLAN from data
QoS – Need end-to-end QoS (AP’s, Switches, Routers)
AP Coverage – VoWLAN phones, which are used while the user is in motion, can expose coverage “holes”
Interference – Voice apps won’t perform well if there is a lot of AP-to-AP interference, so a good site survey is important
Capacity – To handle voice+data load, use more AP’s, and reduce transmit power
To run VoWLAN, now or in the future, use the following
Network Design Recommendations:
Future-Proof Your WLANDesign It To Be “Voice-Ready”
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Cisco Voice over WLAN Solution
SiSiSiSi
Wired PhonesWireless Control System Management
Cisco Compatible Clients
Voice Capable Autonomous or Lightweight AP’s
Integrated Wired + WirelessSwitch/Controller
Cisco Call Manager
Security
End to End Intelligent Integration
Network
792X Wireless IP Phone
IP Communicator
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Alaris IV Pumps on Wireless network
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Draeger Patient Monitoring on Wireless network
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VMWare Server USB tip
Use Digi AnywhereUSB network USB hub to utilize USB functionality
Allows VMotion and HA/DRS to function
Works with Alladin Hasp USB license devices
Works with USB modems
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WCS - AP Heatmap of typical floor (34 APs)
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WCS report of devices connected to ALARIS WLAN
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WCS report of devices connected to TELE WLAN
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WCS report of devices connected to guest WLAN
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Guest Internet free web content filter tip
Use OpenDNS.org web filtering for guest internet
Free
Easy to setup, just register your guest public IP address, change DNS servers on DHCP server/router
Customize categories to be filtered (adult, phising, malware, adware, P2P, etc)
Reports available for accessed and blocked
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WCS Demo of FindingAlaris IV Pump by Serial Number
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WCS Demo of showing trackingof Cisco wireless phone
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KDHCD Wireless Evolution
data wireless at nursing stations data wireless at nursing units/patient rooms managed autonomous APs using WLSE implemented WLANS (multiple SSID/VLANs) for data,
voice and guest with QoS increased APs by 50% and switched to LWAPP with
location server with addition of Alaris smart IV pumps increased APs by another 30% with implementation of
Draeger M300, Gamma and Delta moved voice (Cisco 7921) and data to 802.11a where
possible (12 non overlapping channels) Next ?? (Refrigerator monitoring, asset tracking)
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Supporting over 760 concurrent wireless devices
> 200 Alaris IV pumps
> 275 Cisco wireless phones
> 170 Draeger monitoring devices
> 130 laptops, carts, tablets
14 wireless Pyxis in OR
> 20 guest devices
Video conference interpreter carts
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Take aways
Wireless environment has to evolve/change with your device type needs and changes to environment
Site surveys are very important to plan and predict for new devices, but is not 100% replacement of actual devices with load
Simple tools and built in device site surveys functions are best tools to start diagnosing problem.
Medical device connectivity more sensitive than Cisco wireless VoIP devices
Need to round areas frequently and inquire with users about wireless issues (drops, echo, static)
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Thank you for attending this session.
Session #6 - 254
Total Wireless Convergence –Data, Voice, Medical Equipment, Location Tracking
Nick Volosin – [email protected]
http://www.kdhcd.org/wireless.ppt
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