Creating Safety Zones
Seoul expands wireless network video surveillance
- By Ksenia Coffman
- Jul 01, 2010
To prevent child kidnappings and locate missing children, Seoul City, Korea,
commissioned NongShim NDS, one of the country’s largest system integrators,
to expand on its Seoul U-City plan and provide safety zones for
children, requiring the addition of a wireless infrastructure mesh network.
NongShim deployed Firetide’s MIMO-based video surveillance network for
the child safety zones, which in Seoul represented the fourth and fifth phases of an
ambitious plan to create a city-wide wireless sensor network.
A City-wide Effort
The Seoul U-City wireless network provides digital services to residents, tourists,
city employees and businesses. So far, the wireless infrastructure mesh equipment
has been deployed in Seoul to provide critical, city-wide public and private infrastructure
supporting multiple applications, from public safety to Wi-Fi access and
municipal department connectivity.
“Since we began the Seoul U-City initiative in 2007, we have been able to deploy
exciting applications and services that we did not foresee,” said Kim Jeong
Hyun, project manager of Seoul City Hall. “The wireless network is allowing us
to more easily provide valuable public and private services, enhancing the wellbeing
of our community.”
The main goal of the new phase is to provide video surveillance with motiontracking
capabilities in select neighborhoods to help locate missing children.
Kiosk-based video conferencing systems also have been deployed on the network
for emergencies, allowing people to make emergency calls to Seoul’s Disaster
Prevention Center. Now, officials at the DPC can view incidents in real time
and respond quickly.
For the safety zones’ surveillance network, NDS chose new high-performing
MIMO 802.11n-based HotPort 7200 units from Firetide because of the capacity
to backhaul concentrated video traffic from 30 IP surveillance cameras networked
by HotPort 6202 nodes. The addition of high-capacity MIMO mesh nodes eliminates
the need for a third-party backhaul and created a seamless network that is
easier to manage and more cost effective.
“The solution was critical for the safety zones because there is no other wireless
mesh product that would allow us to transport such bandwidth-intensive video
feeds,” said Daniel Park, general manager of NongShim NDS. “With its groundbreaking
performance and capacity, the solution is enabling Seoul to expand and
build a city-wide infrastructure on a large scale.”
A location-based system was deployed on the network using sensor nodes and
gateway and RF tags. Parents can opt to have their children wear the RF necklaces
that communicate to the sensor nodes so teachers and their parents know their
location at any time. This is the same LBS solution that is being used in the wireless
network in Seoul Forest Park—Seoul’s equivalent of New York City’s Central
Park—that also provides other digital services, including free public Internet access
and ecological monitoring.
“With the new MIMO-based solution, Firetide is helping the city of Seoul realize
its goal of a city-wide wireless infrastructure for its citizens
and visitors,” said Bo Larsson, CEO of Firetide. “Seoul’s approach
demonstrates how ubiquitous networking can enhance
a municipality’s ability to protect the community and provide
About the Author
Ksenia Coffman is marketing manager at Firetide.