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Transportation
Highway Tunnel Monitoring System
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Taiwan is an island of mountains, and where there are mountains,
there are tunnels. In fact, the length of some of Taiwan's highway
tunnels is measured in kilometers, making it necessary to monitor
critical environmental factors such as carbon monoxide concentration
and air temperature. Another problem is the possible effects of
earthquakes, including cave-ins, rockslides, and landslides, any
of which could cause motorists to become trapped inside a sealed
off tunnel.
The existing solution to these critical monitoring and control
requirements is to place thermometers, carbon monoxide sensors,
video cameras, and powerful fans at strategic locations in the
tunnel. Each device is connected to a computer, and the computer
is then connected to a central monitoring station via either a
high-speed leased line or regular telephone line. In this way,
a relatively small number of technicians can monitor the status
of literally hundreds of tunnels from one central location.
But one annoying and potentially serious problem remains. What
happens if the computer in one of the tunnels crashes? Remember
that some of these remote sites are indeed remote. They could
be located hundreds of kilometers from the central monitoring
station, and in some cases are halfway up a 4,000-meter high mountain!
The intelligent solution to the problem is to install Moxa NPower
Commander at each remote site.
NPower Commander is a Network Power Switch Server that can be
used to remotely OnOff the power to most electronic equipment-by
phone, over an ISP-PPP connection, or over a TCP/IP network. Furthermore,
the NPower Commander NT-model allows you to safely shut down and
reboot Windows NT/2000 servers. Making NPower Commander part of
the solution gives technicians the ability to turn equipment on
and off as needed, and more importantly, allows them to avoid
long road trips to reboot unresponsive computers.
Overall Benefit:
Saves administrative time and maintenance costs, increased system
uptime.
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