ccccttvv cctv – cctv ––– sewer imaging sewer … cctv –cctv ––– sewer imaging sewer...
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CWEA-SARBS Jan. 26, 2012
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CCTV CCTV CCTV CCTV –––– Sewer Imaging Sewer Imaging Sewer Imaging Sewer Imaging Technology UpdateTechnology UpdateTechnology UpdateTechnology Update
Lori S. Weiss
City of Santa Barbara, CA
Public Works Department,
Wastewater Treatment
SARBS – Collections Training Seminar Jan. 26, 2012
Gary N. Skipper, P.E.
Vice President
Infrastructure Monitoring and Assessment
Telespection by Halliburton Telespection by Halliburton Telespection by Halliburton Telespection by Halliburton –––– 1966196619661966----67676767
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CWEA-SARBS Jan. 26, 2012
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United States Pipe MarketUnited States Pipe MarketUnited States Pipe MarketUnited States Pipe Market
Small DiameterSmall Diameter
PipelinesPipelines
Mid-Diameter
Pipelines
Large Diameter
Pipelines
Interceptors/Tunnels
> 36” 15” – 33” 6” – 12”
40,000
Miles80,000
Miles600,000
Miles
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What are you trying to accomplish?What are you trying to accomplish?What are you trying to accomplish?What are you trying to accomplish?
� How many of you are involved with collecting sewer inspection images?
� Why are you CCTVing sewers?
� What technologies / cameras do you use?
� How did you select the technology?
� How do you determine if you are successful?
� Have you established key performance indicators (KPIs)?
CWEA-SARBS Jan. 26, 2012
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Today’s “Conventional” CCTV SystemToday’s “Conventional” CCTV SystemToday’s “Conventional” CCTV SystemToday’s “Conventional” CCTV System
� Color, seldom use black & white
� Pan, Tilt, Rotate, seldom use fixed fisheye lens
� Zooming capabilities (optical and/or digital)
� 1,000-1,500 lf of cable, typical
� Non-steerable or steerable, options
� Greatest percentage of systems are setup to inspect pipelines from 6” to 24” (maybe 30”) diameter
� Systems available for inspection of large diameter pipelines say, d>30”-36” diameter, but they require additional equipment such as hoists, pneumatic wheels, scissor lifts, floats, increased lighting, etc.
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WEFTEC 2011 WEFTEC 2011 WEFTEC 2011 WEFTEC 2011 ---- Exhibitor SearchExhibitor SearchExhibitor SearchExhibitor Search
� Pipe and Collection Systems > Pipe/Sewer Inspection Equipment
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Pole Mounted Zooming Camera Pole Mounted Zooming Camera Pole Mounted Zooming Camera Pole Mounted Zooming Camera Pipeline Pipeline Pipeline Pipeline andandandand Manhole Inspection AlternativeManhole Inspection AlternativeManhole Inspection AlternativeManhole Inspection Alternative
� Manufacturers claim inspection distances anywhere between 50 to 400 feet from access structure
� The brighter the lighting, the better the lens, the better the images
� Possible to eliminate pipelines from further full access inspection
Video Inspection of Manholes and Pipelines Video Inspection of Manholes and Pipelines Video Inspection of Manholes and Pipelines Video Inspection of Manholes and Pipelines
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Pipeline Inspection with Pole Mounted Pipeline Inspection with Pole Mounted Pipeline Inspection with Pole Mounted Pipeline Inspection with Pole Mounted Zooming Cameras Zooming Cameras Zooming Cameras Zooming Cameras
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MH Inspection Camera MH Inspection Camera MH Inspection Camera MH Inspection Camera ---- Digital CCTVDigital CCTVDigital CCTVDigital CCTV
IBAK’s Panaromo MH Camera• Digital 3D Optoscanner
• All-round manhole scanning
• Pan and rotate direction of view
• Inspection speed of ~ 1 ft/sec
• Data analysis in vehicle or office
• For manholes of any depth
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If the Pipes Are Large Enough, If the Pipes Are Large Enough, If the Pipes Are Large Enough, If the Pipes Are Large Enough, Entry is an Option for InspectionEntry is an Option for InspectionEntry is an Option for InspectionEntry is an Option for Inspection
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What Do We See With Zoom Cameras? What Do We See With Zoom Cameras? What Do We See With Zoom Cameras? What Do We See With Zoom Cameras?
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If the Pipes Aren’t Large Enough for Entry,If the Pipes Aren’t Large Enough for Entry,If the Pipes Aren’t Large Enough for Entry,If the Pipes Aren’t Large Enough for Entry,What are the Options for Inspection?What are the Options for Inspection?What are the Options for Inspection?What are the Options for Inspection?
CCTV is the most widely available and used sewer pipeline inspection option today 13
Newer Types of Tracked TransportersNewer Types of Tracked TransportersNewer Types of Tracked TransportersNewer Types of Tracked Transporters
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Newer Types of Wheeled TransportersNewer Types of Wheeled TransportersNewer Types of Wheeled TransportersNewer Types of Wheeled Transporters
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Newer Floating Platform Transporter OptionsNewer Floating Platform Transporter OptionsNewer Floating Platform Transporter OptionsNewer Floating Platform Transporter OptionsUsed in Pipes Too Full to Drive ThroughUsed in Pipes Too Full to Drive ThroughUsed in Pipes Too Full to Drive ThroughUsed in Pipes Too Full to Drive Through
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New LongNew LongNew LongNew Long----Range TransportersRange TransportersRange TransportersRange Transporters
Inspection Distances of
5,000 to 7,000 feet are
now an option for pipes
as small as 12” diameter17
Mainline and Lateral InspectionMainline and Lateral InspectionMainline and Lateral InspectionMainline and Lateral Inspection OptionsOptionsOptionsOptions
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Laser Diodes & Video Caliper MeasurementLaser Diodes & Video Caliper MeasurementLaser Diodes & Video Caliper MeasurementLaser Diodes & Video Caliper Measurement
Laser Diodes combine the latest laser beam
technology with an advanced digital video caliper
for measuring pipe joints, cracks, defects, debris
and other abnormalities within the pipeline 19
360360360360°°°° Digital Video Optical ScanningDigital Video Optical ScanningDigital Video Optical ScanningDigital Video Optical Scanning
Optical Visual Scanning
� Inspection above water surface in pipe
� Record of 100% of pipe surface
� Advantages
– Enhanced defect classification
– Defects are Measurable
– Enables future defect classification comparison and trend analysis
– Manufacturers claim faster than CCTV
360 degree
scanned
image
Cylindrical scan to
flat image
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CWEA-SARBS Jan. 26, 2012
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User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data
2D P
lan
Vie
w o
f P
ipel
ineObservations
highlighted on Side and Front View
seen in thumbnail
view
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User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data User Selects View of Pipe from Visual Scan Data
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Autonomous Digital Scanning Autonomous Digital Scanning Autonomous Digital Scanning Autonomous Digital Scanning CCTV Robot Suitable for 6”CCTV Robot Suitable for 6”CCTV Robot Suitable for 6”CCTV Robot Suitable for 6”----12” Pipes12” Pipes12” Pipes12” Pipes
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Laser Scanning Laser Scanning Laser Scanning Laser Scanning –––– A Simple ConceptA Simple ConceptA Simple ConceptA Simple Concept
� Performed in conjunction with CCTV, with lights turned low or off
� Ring of laser light is projected onto the internal pipe surface for inspection above the flow surface
� Laser image is in the field of view of the CCTV camera while it moves thru the pipe
� Analysis is performed on the laser light ring to build a digital profile via dimensional measurements
� For use in real-time or with historic video records (VHS, CD, DVD)
� Measurement vs. Visual Inspection
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Ring Laser (2D) Scanner Ring Laser (2D) Scanner Ring Laser (2D) Scanner Ring Laser (2D) Scanner –––– CCTV AddCCTV AddCCTV AddCCTV Add----on on on on
CCTV Inspection Camera Laser Profiler
Cues, Pearpoint, Aries, Envirosight, IBAK Panoramo, iPEK,
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Encoded Wheels Measure Distance
Laser Beam to Measure Pipeline
Ring Laser Scanner Ring Laser Scanner Ring Laser Scanner Ring Laser Scanner –––– Stand Alone SystemStand Alone SystemStand Alone SystemStand Alone System
Courtesy of RST26
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Laser Scanning in difficult CCTV LightingLaser Scanning in difficult CCTV LightingLaser Scanning in difficult CCTV LightingLaser Scanning in difficult CCTV Lighting
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Laser Scanning Measures Pipe DimensionsLaser Scanning Measures Pipe DimensionsLaser Scanning Measures Pipe DimensionsLaser Scanning Measures Pipe Dimensions
Determine Pipe Shape/GeometryDetermine Pipe Shape/GeometryDetermine Pipe Shape/GeometryDetermine Pipe Shape/Geometry 28
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Laser Scanning Provides Measurements to Laser Scanning Provides Measurements to Laser Scanning Provides Measurements to Laser Scanning Provides Measurements to Augment Visual CCTV DataAugment Visual CCTV DataAugment Visual CCTV DataAugment Visual CCTV Data
Laser Scan provides measurement of pipe material loss29
CCTV with Laser Scan CCTV with Laser Scan CCTV with Laser Scan CCTV with Laser Scan –––– Partially Full PipePartially Full PipePartially Full PipePartially Full Pipe
CCTV and Laser Scanning work well in dry pipes for CCTV and Laser Scanning work well in dry pipes for CCTV and Laser Scanning work well in dry pipes for CCTV and Laser Scanning work well in dry pipes for pipeline inspection above the water surfacepipeline inspection above the water surfacepipeline inspection above the water surfacepipeline inspection above the water surface
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CWEA-SARBS Jan. 26, 2012
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CCTV with Laser Scan CCTV with Laser Scan CCTV with Laser Scan CCTV with Laser Scan –––– Nearly Full PipeNearly Full PipeNearly Full PipeNearly Full Pipe
Now’s a great time to use Sonar Inspection Tools to Now’s a great time to use Sonar Inspection Tools to Now’s a great time to use Sonar Inspection Tools to Now’s a great time to use Sonar Inspection Tools to inspect the pipeline below the water surfaceinspect the pipeline below the water surfaceinspect the pipeline below the water surfaceinspect the pipeline below the water surface
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Data Presentation Data Presentation Data Presentation Data Presentation –––– Scan to Profile ViewScan to Profile ViewScan to Profile ViewScan to Profile View
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Scan Data used for Corrosion ProfileScan Data used for Corrosion ProfileScan Data used for Corrosion ProfileScan Data used for Corrosion Profile
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Sonar Profiling below the Water SurfaceSonar Profiling below the Water SurfaceSonar Profiling below the Water SurfaceSonar Profiling below the Water Surface
� Sediment by Footage measurement
� Total Cumulative Sediment
� Capacity Loss due to Sediment
� Pipe Blockage Identification
� Pipe Shape
Distance measurement viatime of flight
Pipe Sediment
SONAR sensor rotates 360 degrees
Distance measurement viatime of flight
Pipe Sediment
Distance measurement viatime of flight
Pipe Sediment
SONAR sensor rotates 360 degrees
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CWEA-SARBS Jan. 26, 2012
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Incline and Meander Units are ImprovingIncline and Meander Units are ImprovingIncline and Meander Units are ImprovingIncline and Meander Units are Improving
•Blue indicates Uncalculated Incline (raw data includes bumps
at joints, debris, cracks, etc.)
•Red indicates Calculated Incline, of Vertical Alignment
•Can be a difficult proposition in small lines 35
LASERSONAR
V-360
GAS CCTV
DATA SYNC
Laser
Gas
Sonar
Incline &Meander
CCTV
Visual Scan
MultiMultiMultiMulti----Sensor Inspection Options AvailableSensor Inspection Options AvailableSensor Inspection Options AvailableSensor Inspection Options Available
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Questions, Comments?Questions, Comments?Questions, Comments?Questions, Comments?
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Questions, Comments?Questions, Comments?Questions, Comments?Questions, Comments?
Gary N. Skipper, P.E.BROWN AND CALDWELLVice President, Infrastructure Monitoring and Assessment9665 Chesapeake Drive, Suite 201San Diego, CA 92123Tel: (858) 571-6792Cell: (858) 699-6824
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