Transcript Wireless Mesh in Granbury Texas

Wireless Mesh in Granbury, Texas
A Case Study in Public/Private Partnerships in a
Public Safety/Public Access Metro WIFI Network
www.granbury.org
Topics For Discussion
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www.granbury.org
Where did we start from
What needs and goals drove the project
Cost/Benefit Model
What equipment was procured
How was it installed
Public/Private partnership
Purchase of the system by the City
Redeployment after purchase
Next Steps
Questions
Where did we start from
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www.granbury.org
No Technology Department prior to
November 2002
$6000 Total Budget
No staff
“Worst Environment Imaginable”
Internet access at one building via Cisco
Aironet to Frontier
ISDN at one building
No WAN Network at all
City Manager, Finance Director, and City
Council bought into new technology plan
What needs and goals drove
the project
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Police Officer access to local databases from patrol
vehicles
Interoperable communications with other agencies
Internet access to listserv groups for investigations
Fire Department access to GIS
Fire Department access to WISER
Fire Department access to local database
(Firehouse)
City Inspector access to local database (PermitLV)
Read electric and water meters from network
Inexpensive Broadband access to citizens
Tourist access to Broadband
Ability to do remote live web casts
Strategic plan to role out to adjoining Cities and
Counties for complete interoperability
Cost/Benefit Model
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www.granbury.org
$50,000/Sq. Mile for Tropos, Infrastructure, and end user
hardware
Approx. $4000 Deployment Cost
3 FTE * 1.5 hours * $20/hr * 3 shifts * 365 days.
1st Yr. Estimated Savings $98,000
Intangible of having the officer on the street an additional
1.5 hours per shift per day.
Ability to quickly solve crime on the street
Meter Reading not factored in (100k/yr estimate)
Inspectors not factored in
City portion for network and services for 5 yrs $305,000
All employees granted free internet access
Hard dollar cost
Hard dollar savings
Soft dollar benefits
What equipment was procured
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www.granbury.org
22 Toughbook 29’s and 6 Toughbook 50’s
10 Jotto Desk Car Mounts, 22 Toughbook Port
Replicators, and 22 Lind Power Converters, 7
Gamber Johnson Truck Mounts
14 SMC High Power 802.11 B 200mw cards and
5db external antennas, 8 Delmarc 300mw cards
and 8 - 3db Antenex external antennas
5 HP NX9010s purchased for inspectors
100 Tropos radios
19 Canopy 5.7 Backhauls
Netmotion Software License
Colubris Gateway
Airpath Service
Not included in the $305,000 cost
Included in the $305,000
How was it installed
www.granbury.org
How was it installed
City of Granbury 250’
Communication Tower
Motorola 20 meg
5.7 backhaul
www.granbury.org
How was it installed
City of Granbury 165’
Cemetery Communication
Tower
www.granbury.org
Motorola 20 meg
5.7 backhaul
How was it installed
City of Granbury 125’ South Water Tower
Motorola 5.7 AP
Array
www.granbury.org
How was it installed
City of Granbury 45’ City Hall
Communication Tower
www.granbury.org
How was it installed
TROPOS 5210
Radio
Motorola 5.7 SM
Gateway
www.granbury.org
Photocell power
interface
How was it installed
SMC External
7db antenna
www.granbury.org
How was it installed
SMC High Power
802.11B with
external 7db
antenna
Panasonic
Toughbook 29 w/
WEB273 Port
Replicator and
Lind power
Inverter
Jotto No-Holes
Mount
www.granbury.org
How was it installed
Panasonic
Toughbook 29 w/
touchscreen
Gamber Johnson
mount
www.granbury.org
How was it installed
3db Antenex
antenna
www.granbury.org
How was it installed
www.granbury.org
How was it installed
Recently annexed
and without
coverage
www.granbury.org
How was it destroyed
www.granbury.org
Public/Private Partnership
Model
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Frontier Broadband was existing ISP for the city
Also provided wireless wan equipment to connect campuses
Needed mobile solution
Narrowed Mobile WIFI search to Tropos solution August 04
Frontier to buy equipment, City provide mounting assets and
manpower to mount equipment
Pilot Project with TROPOS 5110 radios for approximately
60% City coverage launched November 2004
Contracted with Frontier to install, maintain, operate
TROPOS network for $305,000 for five years without
additional costs to the City.
Began installation of TROPOS 5210 in October 05
January 06 identified areas with no coverage
Began to see network degradation due to Canopy network
changes
Purchase of the system by the
City
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www.granbury.org
City recognized a difference in priorities
Initial $100,000 payment made, $205,000 payment pending upon
system acceptance
Lack of coverage areas given to ISP for resolution
May 06 TROPOS system virtually unusable
October 06 ended ISP use and went to independent T1 lines at all
facilities
December 06 began Negotiation with Frontier to purchase system
February negotiated sale agreement with Frontier of the complete
system purchase for $225,000.
Transfer ownership of 110 TROPOS 5210’s, 9 TROPOS 5110’s, 18
Motorola 5.7 SMs, 8 Motorola 5.7 Aps, Colubris MSC5500 gateway,
Airpath billing account.
City would purchase additional 5.7 backhauls, additional 5.7 AP
arrays, maintenance contract and management software from
TROPOS all for an additional cost of 70,000.
Add additional T1s at City Hall NOC
Redeployment after
purchase
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Only TROPOS traffic on backhauls
Focus on minimizing number of hops from TROPOS units to
backhauls (2 max)
Minimize number of hops on backhauls to T1 access (1)
Deploy AP arrays with expansion capabilities factored in
Notify all customers of the change of ownership and the plan for
the network changes
Focus on customer service with commitment to contact customers
with issues the same day
60 day redeployment schedule during which service was free of
charge and saw customer usage peaked at 160.
Go Live was June 1, 2007
Three rate plans going forward
As of July 10, 2007 48 monthly customers and averaging 6 – 8
daily customers on the weekend
Minimum speeds back to the NOC from vehicles averaging 1.8
Mbps with speeds as high a 4 Mbps
Next steps
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Install TROPOS 3210’s in businesses
Install TROPOS 4210’s in PD vehicles to expand mesh to nondeployed areas within recently annexed areas
Tie Video Surveillance Systems into the mesh for public safety
access in exchange for free service to the business owner
Pursue partnering with County on expansion to high crime areas
using mini cell architecture
Begin advertising campaign to increase community awareness of
the network and subscription rates
Rollout laptops to Public Works department heads for access to
InTouch CSRS
Purchase Ruckus Wireless devices for use as CPE in customer
premises
Revise Subdivision Ordinances to require radio infrastructure
deployment at the time of construction
AMR implementation when we reach 75% radio read water meter
install base
Lessons Learned
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www.granbury.org
Availability of mounting assets are crucial for proper
coverage
Select a vendor based on real life system test results with an
adequate size deployment
Private partners need to be financially dependent on the
success of the network with enough working capital for the
long haul
Regardless of who owns the network make sure the finance
model works based on previous experience not first time try
Define, define, define
If public safety is going to use it its got to be easy to use
and work every time
Segregate mesh network from all other wireless networks
For small networks (<1000), subscription revenues alone will
not offset ongoing operational and support costs, but should
it
Questions
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www.granbury.org
[email protected]
817-573-1114 X1150
817-408-7170