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This is our
quarterly e-mail newsletter providing the latest news on our ROMDAS Road Measurement Data Acquisition System. Among our
news:
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Street Light
Illumination Measurements: We have commenced field testing
of our street light illumination meter. This will allow for the
location of street lights to be easily and accurately established
as well as monitoring their light levels over time.
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GPS Data Processing: A report is available on conducting
network GPS surveys and using the data to create a topologically
correct network in a GIS.
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HDM-4
Information Management System. An update to the HIMS is under
way with particular emphasis on the HDM-4 link.
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Software Updates: New versions of the ROMDAS Road
Management System (RMS), ROM-DOS and the Z-250 are available.
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ROMDAS Feature:
Directly Digitising Videos |
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The
ROMDAS for Windows (ROM-WIN) direct digitising system is a simple
solution for creating right-of-way or other videos during a survey.
Comprised of a camera
connected to a Firewire (IEEE-1394) PCMCIA card, the system directly
digitises videos onto the same computer used for the other ROMDAS
data. The videos are saved as .AVI files compressed using the
Pegasus MJPEG library. The camera is mounted on the inside of the
vehicle using a special suction-cup system which attaches to the
windscreen. An optional external mounting system is available.
During the survey key
data such as the GPS co-ordinates, roughness, visual rating, etc.
are superimposed on the video. The user can select what data to
display. The images are stored at user definable intervals (eg
10 m).
Priced at
approximately $USD 4,000 the direct digitising video system option
is a cost effective way to gather video images on the road network
while undertaking other surveys.
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Systems have recently been supplied to:
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Australia:
Laser roughness, GPS and direct video digitising
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Mozambique:
Roughness, GPS and direct video digitising
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Cambodia:
Roughness, Starfire GPS and direct video digitising
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Chile: Z-250
and roughness measurements
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Dominican Republic:
Roughness
measurements
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Dubai: Rut
depth and roughness measurements
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Trinidad and
Tobago: Roughness measurements
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| GPS Data
Processing |
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A
report on using ROMDAS for network GPS surveys has been prepared.
This covers all aspects of the surveys, from establishing nodes and
links, through conducting a ROMDAS GPS survey, processing the survey
data, to creating the final topologically correct network in a GIS.
This report will be of interest to anyone involved with, or
contemplating, GPS surveys. It can be downloaded from
www.ROMDAS.com. |
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| Illumination
Measurements |
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We have commenced
field testing of our streetlight illumination measurement system for
monitoring street lighting. This consists of a 40 Hz illuminance
meter which is connected directly to the computer. ROMDAS records
the illuminance against the location in terms of the distance along
the road and GPS co-ordinates (when also recording GPS data). The unit is
affixed to the vehicle with a special cone-shaped enclosure which
reduces the amount of ambient light and also has a protective
optical lens for the sensor.
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| HDM-4
Information Management System |
Road and Bridge Data Management
System
The
HIMS is a powerful relational database system designed to store and
manipulate data on any asset - from roads through bridges to traffic
and accident. With fully user definable tables, dynamic
segmentation, user definable forms, and more, it can be configured for any
application. It also has an embedded GIS, outputs files for analysis
with HDM-4, and more. For further information visit www.hdm-ims.com or request
an HIMS evaluation CD.
We have commenced our work on v 3 of the HIMS with particular
attention being paid to simplifying the transfer of data between the
HIMS and HDM-4. The new version will be released in the next quarter. |
The following software updates are available for download from
www.ROMDAS.com:
- ROMDAS
Road Management System: The RMS v 4 is
available. This features improved GPS data processing routines
for creating MapInfo files, ability to visually rate video
distresses from the computer keyboard, and ability to estimate
pavement and shoulder widths from videos. An upgrade to this
version is required from all existing users who have not
purchased the software in the last 12 months.
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Z-250:
The current release of the
Z-250 software has improvements for field surveys.
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ROM-DOS:
The latest version of ROMDAS for MS-DOS fixes some minor bugs.
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| Automatic
Control For Starting Measurements |
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photocell attachment for ROMDAS is under testing which will allow
for the automatic triggering of starting and stopping data logging.
The photocell will be directed at the pavement and when a reflective
strip is crossed the system will start/stop. This is designed to
improve the calibration accuracy. |
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