| |
Laser Profiler System
What is it?
- The Laser Profiler is a stand-alone, snap-on tool for use with a CCTV survey
system/camera to collect survey data and create pipeline reports, including fault
measurements and internal pipeline features.
- Attaches to existing CCTV camera, using machine vision software to analyze
CCTV images.
- The Laser Profiler measures pipe size, laterals, water levels and other features.
- Performs automatic analysis of pipe ovality and capacity at a rate of 30 times
per second.
- The Laser Profiler enables the contractor, municipality, or engineer to determine
internal pipeline conditions before, during, or after rehabilitation.
- For use within 6" to 72" pipe diameters.
How It Works:
-
 |
Examples of quantifying lift in liner using both the
manual and the automated digital measurement
methods. |
 |
 |
| Automated Analysis- The software uses machine vision.
Machine vision is used to find the video image of the
laser profile (red laser line). Each frame of the inspection
video is analyzed to build a digital profile of the pipe. |
 |
A ring of laser light is projected
onto the internal pipe surface
- Laser image is in the field of view
of the camera while the camera
moves through the pipe
- Analysis is performed on the ring
of light using the Laser Profiler software
to build a digital pipe profile
- For use with live or pre-recorded
video (tape, CD, or DVD)Ovality - The Ovality function
calculates the “q” (as per ASTM F
1216, the internationally recognized
standard for CIPP rehabilitation).
- Capacity - The Capacity (X-sectional
Area) function calculates the crosssectional
area for each profile and
normalizes the results against the
expected internal pipe area.
- Interfaces with CCTV software.
- Delta - The Delta calculation finds the
maximum and minimum pipe radius
for each profile.
Three-Dimensional (3-D) Display
The pipe data can be displayed as a fully interactive three dimensional model. The user has the ability to zoom in and move around the model to find and
display points of interest. Reporting is available using the Profile Report. The model can be displayed using two methods:
- Topographic display: A user defined
topographic scale is applied to
highlight where the actual pipe radius
is greater than the expected internal
radius (shades of yellow, orange and
red) or less than the expected
internal radius (three shades of blue).
- Capacity and Ovality display: Cross-sectional coloring allows
users to easily locate sections of
pipe where user defined ovality
and capacity thresholds have been
exceeded. In this example, the red
rings highlight where capacity
threshold of 10.2% has been
exceeded.
|
|
