Using ArcPad for Fieldwork with GIS Steve Dunn & Mark Smith.
EMERGING TECHNOLOGIES FOR GIS/GPS MAPPING … · ARCPAD SITE MATE ... LANDMARK OTHERS. ADVANTAGES...
69
EMERGING TECHNOLOGIES FOR GIS/GPS MAPPING FOR PIPELINES 2003 Petroleum User’s Conference Houston March 11, 2003 By: Ashok Wadwani Applied Field Data Systems, Inc. Houston, Texas Phone No.: 281-579-0492 e-mail: [email protected]
Transcript of EMERGING TECHNOLOGIES FOR GIS/GPS MAPPING … · ARCPAD SITE MATE ... LANDMARK OTHERS. ADVANTAGES...
EMERGING TECHNOLOGIES FOR GIS/GPS MAPPING FOR
PIPELINES2003 Petroleum User’s Conference
Houston
March 11, 2003
By: Ashok Wadwani
Applied Field Data Systems, Inc.
Houston, Texas
Phone No.: 281-579-0492
e-mail: [email protected]
ADVANCEMENTS
HardwareGPS ReceiversData Collectors
SoftwareLaser Range Finders
GPS RECEIVERS
SmallerCheaperGPS AccuracyWith the elimination of SA, autonomous accuracy is much better. Stand alone accuracy of 10-15 meters.Availability of Coast Guard Beacons for DGPSReal time differential service available throughout the world at reasonable cost
DGPS CORRECTION-WAAS
WAAS-WIDE AREA AUGMENTATION SYSTEMFAA is developing this system to help commercial aircraft use GPS as means of navigationNet work of reference stations monitoring and calculating standard GPS errors and broadcasting through 2 geostationary satellites.
DGPS CORRECTION-WAAS CON’T
Correction method similar to Coast Guard Beacon except beacon broadcasts corrections from ground stations at low frequency which are more susceptible to weather interference and has limited rangeWAAS provides extensive coverage which is less susceptible to weather, signal interference
DGPS CORRECTION-WAAS CON’T
Provides about 3 meter accuracy 95% of the timeBetter accuracy is experienced in lower latitudes. Accuracy worsens as you head north and is worse along northern most areas from Seattle through Chicago and BostonAs more satellites are launched this will change & entire U.S. is expected to be covered
DATA COLLECTORS
TRADITIONAL UNITS FOR DATA COLLECTION
For Data Collection, traditional GPS units use either:
On board memory orExternal data loggers
DISADVANTAGES OF TRADITIONAL DATA
COLLECTORS
In most cases, software is difficult to learnUnits are vendor specific to GPS enginesCannot be used for anything else.Proprietary operating systemSlow processor - difficult to manipulate dataSmall screen sizeLow battery lifeReplacement units expensive
NEW GENERATION DATA COLLECTORS
Hand held Personal Digital Assistant (PDA) and Ruggedized PC’s.
Palm PilotsUnits with Windows Pocket PC operating systems such as:Ruggedized PC’sTablet PC
MANUFACTURERS
DAPSHARPHP/COMPAQTRIPOD DATA SYSTEMSVIA
WALKABOUTPANASONICFUJITSUJUNIPER SYSTEMSPSION
Panasonic Toughbook 07
Hammerhead TDS Ranger
Panasonic Toughbook 01
AllegroTDS ReconCompaq iPaq
ADVANTAGES OF NEW GENERATION DATA COLLECTORS
Easy to use - most of the users are already familiar with the Palm, Pocket PC operating systems, and Windows O/S.Can be used with or without GPSCan be used for other applicationsLong battery lifeLight WeightColor DisplayVoice Recording systemsPen-based USB PortMemory cards
FIELD DATA COLLECTION SOFTWARE
TRADITIONAL FIELD DATA COLLECTON SOFTWARE
Difficult to learnVendor specific to their GPS enginesExpensiveOperate only on Windows platform
NEW SOFTWARE
FIELDWORKER
SOLO ARCPAD SITE MATE PATCHWORKS COMPOSER LANDMARKOTHERS
ADVANTAGES OF NEW SOFTWARE
Economical - $500 - $1,000Have capability to add background maps or digital orthophotosWill run with MR. SIDNot vendor specific to GPS engineRecreational to survey gradeEasy to useCan edit data dictionary in the fieldMost of them have a similar version running on the PC, so learning and training is easier.Accept two serial inputs simultaneouslyDigital camera input
ADVANTAGES OF NEW SOFTWARE
RHINO SOFTWARE ALLOWS
Post Processing of Garmin GPS receiver data
Collect feature and attribute data
EXAMPLE SCREENS
RASTER IMAGES
IMAGE
LOGGING DATA
OFFSETS
EXPORTING
STYLUS USES
APPLICATIONS
INFRASTRUCTURE
GEOLOGY
APPLICATION
Collect Point, Line and Polygon data
For Line and Polygon data, collect GPS reading at user selectable distance or time interval automatically and pause and collect point features on the way.
DATA DICTIONARY
Crossings manyType picklist
Cable lineElectrical LineGas LineLiquid Petroleum LineOverhead Crossing (Other)Overhead pipeline crossingSewer LineTelephone CableWater Line
DATA DICTIONARY CON’T
City alphaCompany alphaContact Tel. numberonlyDepth cover numberonlyMarked? checkboxVert Sep ft. numberonlyDate Visit date mandatoryTime Visit time mandatory
DATA DICTIONARY CON’T
BoundariesmanyType picklist
City LimitsFence LinesProperty Line
City alphaOwner alphaDepth Cover numberonlyDate Visit dateTime Visit time
DATA DICTIONARY CON’T
Roads manyType picklist
RailroadRoad CenterlineRoad EdgeSubdivision Line
Road Name alphaRoad Type picklist
CityCountyState HighwayFederal HighwayInterstateFrontage road
DATA DICTIONARY CON’T
Name alphaMile # NumberonlyEquipment picklist
Pump UnitMotor UnitControl ValveControl BuildingTark EdgeRack EdgeManifoldMetersStrainers
DATA DICTIONARY CON’T
Condition picklistGoodFairNeeds RepairNeeds Replacement
Date Installed dateDate Visit DateTime Visit Time
DATA DICTIONARY CON’T
Pipe manyType picklist
CPL Route SurveyAbondoned-in-place pipePoint of intersectionExposureSuspended PipeDepth cover
Date Abondoned dateDepth cover numberonlyDate Visit dateTime Visit time
DATA DICTIONARY CON’T
Check Valve mixedName alphaANSI ratingpicklist
150CV150
300CV300
600CV600
900CV900
1500CV150
Date Visit dateTime Visit time
DATA DICTIONARY CON’T
Block Valve mixedName alphaANSI ratingpicklist
150BV150
300BV300
600BV600
900BV900
1500BV1500
DATA DICTIONARY CON’T
Type picklistballslab gate
slabgtwedge gate
wedgegplugdbl blk/bleed
dlbblk
DATA DICTIONARY CON’T
Instrument manyInstrument picklist
Temperature probePressure ProbeTest Head
Date Installed dateSerial No NumberonlyDate Visit dateTime Visit time
DATA DICTIONARY CON’T
Cathodic manyType picklist
Close Interval SurveyInterference BondGround BedRectifierTest Lead
Name alphaDate Visit dateTime Visit time
DATA DICTIONARY CON’T
Anomalys & Defects manyType picklist
AnomalyDentExternal CorossionInternal CorossionGougeLamination
Name alpha
DATA DICTIONARY CON’T
Cathodic manyType picklist
Close Interval SurveyInterference BondGround BedRectifierTest Lead
Name alphaDate Visit dateTime Visit time
DATA DICTIONARY CON’T
Type picklistdent
Andentgouge
AngougLamination
AnlamnInternal Corossion
AnIntlExternal Corossion
AnExtlO'clock numberonlyPostn Dwnst numberonlymax depth numberonlymax length numberonlymax width numberonly
DATA DICTIONARY CON’T
Ext Corr Type picklistlocalized
ExtLocgeneral
ExtGenInt Corr Tpe picklist
localizedgeneral
Date Visit dateTime Visit time
end
DATA DICTIONARY CON’T
Exposed Pipe Evaluation Check list
Waterway Crossing Evaluation Checklist
ROW Evaluation Checklist
Closed Interval Survey
LASER RANGE FINDERS
Data acquisition challenge #1 “You can’t get there from here”
Terrain separates you from the feature you want to map.
Data collection challenge #2“You can get there ... but don’t want to”
Also known among field mapping technicians and postal delivery personnel as the Doberman factor.
Data collection challenge #3“You can get there ... but the satellite can’t”
Data collection challenge # 4“You can get there, and there, and there .....”
To address these challenges, consider using laser mapping systems
The key to laser mapping is ...
You don’t have to get there from here!Instead, just shoot it with the laser.
What makes a laser mapping system work?
Eye-safe diode pulse laser measures distance without reflectors.Digital flux-gate compass or angle encoder (not affected by magnetic fields)Electronic tilt sensor determines vertical angle.
General range finding specifications
Multiple pulse averaging gives better accuracy.Mapping grade lasers vary in accuracy from about 5 cm. up to 1.5 meters.Maximum range varies from 1000 ft... up to 2500 ft.
Direct GPS Integration
Data loggingdevice
GPS
CRITERION
Laser gun
Indirect laser / GPS integration
GPS
Laser
Features
Independent laser mapping
Laser with data collection hardware and software.Base map coordinates or survey markers provide reference points.Features are accurate to base map and to each other.Can be geo-referenced again when more accurate base maps become available.Requires origin coordinates.
DIGITAL CAMERA AND GIS
MediaMapper
A desktop mapping software that links pictures and other files to GIS map layers.Creates “media maps” that can be used in Arcview GIS, MapInfo Professional, or on the web.The mapping solution for GIS users wanting a fast, easy way to link photographs or other multimedia files to map locations.
How MediaMapper Works With Digital Still Pictures
Take digital pictures while recording GPS data.Media Mapperdownloads the pictures and the GPS data file.Click the map to view the pictures of location.
Get the Picture … Make the Map
Take Pictures and Collect GPS data
Pictures Link to Map Via GPS
Metadata
Download to MediaMapper
Customize the Map
Environmental Application
Pollution MonitoringEnvironmental Assessment ProgramsHazardous SpillsPublic Education and OutreachMandatory ReportingWaste Contamination PointsCleanup AreasEnvironmental Data CollectionWater ManagementWetlands
Benefits
Works with Off-the-Shelf ComponentsSmall, Lightweight for Individual UsersNo Need for Expensive Outside ProgramsSimple to OperateFast Turnaround from the Field to the InternetQuick Association of Images with MapsCreates .shp, .tab, or html maps
Questions?
