III-5. WIRELESS REMOTE IMAGING SYSTEM
79
III-5. EAGLE RIVER FLATS WIRELESS
REMOTE IMAGING SYSTEM
Christopher R. Williams and Gary M. Trachier
U.S. Army Cold Regions Research and Engineering Laboratory
trieve images documenting pumping opera-
INTRODUCTION
tions, soil drying, tidal activity, and flooding
A remote imaging system proved to be use-
at two pond sites (Ponds 183 and 258) on the
ful for monitoring the daily operations of the
Flats. A Web site was developed where the
Pond Pumping Remediation Project at Eagle
daily retrieved images would be archived for
River Flats (ERF). By visually inspecting the
monitoring purposes. The Web page's URL is
daily retrieved images from the remote im-
aging systems, project managers could moni-
conclusion of the 2000 field season, the per-
t o r the effectiveness of the pumping
formance of the RIS was thoroughly analyzed,
remediation efforts. Retrieving images from
and potential future improvements were
ERF proved to be difficult during the 1999
identified.
field season. We analyzed the shortcomings
and designed a new robust image retrieval
system from the bottom up. The new system,
EXPERIENCE WITH REMOTE IMAGING
based on wireless technology, was deployed
EQUIPMENT
in two ponded areas under treatment. The
retrieved images were successfully used
Remote imaging equipment used during
throughout the 2000 field season to monitor
the 1999 and 2000 field seasons was designed
the conditions of the pumping remediation
utilizing the AXIS 200+ Network Camera
efforts.
Server. The equipment that supports the AXIS
200+ is the primary difference between the
systems used during the two field seasons.
The 1999 design utilized a cell phone and lo-
GOAL FOR THE 2000 FIELD SEASON
cal internet service provider (ISP) as a means
The goal of the 2000 field season was to de-
of transferring images via file transfer proto-
velop a reliable wireless remote imaging sys-
cols (ftp) from the Axis 200+ to the Cold Re-
tem (RIS) that could visually monitor the
gions Research and Engineering Laboratory
white phosphorus attenuation parameters of
(CRREL) in Hanover, NH. The AXIS 200+
the Eagle River Flats Remediation Project.
camera, working via a time- and event-based
Once deployed, the RIS would remotely re-
scripting language (cron), would capture an
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