EMERGING TECHNOLOGIES FOR GIS/GPS MAPPING FOR PIPELINES

Transcription

1 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.: afdsaw@aol.com

2 ADVANCEMENTS Hardware GPS Receivers Data Collectors Software Laser Range Finders

3 GPS RECEIVERS Smaller Cheaper GPS Accuracy With the elimination of SA, autonomous accuracy is much better. Stand alone accuracy of meters. Availability of Coast Guard Beacons for DGPS Real time differential service available throughout the world at reasonable cost

4 DGPS CORRECTION-WAAS WAAS-WIDE AREA AUGMENTATION SYSTEM FAA is developing this system to help commercial aircraft use GPS as means of navigation Net work of reference stations monitoring and calculating standard GPS errors and broadcasting through 2 geostationary satellites.

5 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 range WAAS provides extensive coverage which is less susceptible to weather, signal interference

6 DGPS CORRECTION-WAAS CON T Provides about 3 meter accuracy 95% of the time Better accuracy is experienced in lower latitudes. Accuracy worsens as you head north and is worse along northern most areas from Seattle through Chicago and Boston As more satellites are launched this will change & entire U.S. is expected to be covered

7 DATA COLLECTORS

8 TRADITIONAL UNITS FOR DATA COLLECTION For Data Collection, traditional GPS units use either: On board memory or External data loggers

9 DISADVANTAGES OF TRADITIONAL DATA COLLECTORS In most cases, software is difficult to learn Units are vendor specific to GPS engines Cannot be used for anything else. Proprietary operating system Slow processor - difficult to manipulate data Small screen size Low battery life Replacement units expensive

10 NEW GENERATION DATA COLLECTORS Hand held Personal Digital Assistant (PDA) and Ruggedized PC s. Palm Pilots Units with Windows Pocket PC operating systems such as: Ruggedized PC s Tablet PC

11 MANUFACTURERS DAP SHARP HP/COMPAQ TRIPOD DATA SYSTEMS VIA WALKABOUT PANASONIC FUJITSU JUNIPER SYSTEMS PSION

12 Panasonic Toughbook 07 Hammerhead TDS Ranger Panasonic Toughbook 01 Compaq ipaq TDS Recon Allegro

13 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 GPS Can be used for other applications Long battery life Light Weight Color Display Voice Recording systems Pen-based USB Port Memory cards

14 FIELD DATA COLLECTION SOFTWARE

15 TRADITIONAL FIELD DATA COLLECTON SOFTWARE Difficult to learn Vendor specific to their GPS engines Expensive Operate only on Windows platform

16 NEW SOFTWARE FIELDWORKER SOLO ARCPAD SITE MATE PATCHWORKS COMPOSER LANDMARK OTHERS

17 ADVANTAGES OF NEW SOFTWARE Economical - $500 - $1,000 Have capability to add background maps or digital ortho photos Will run with MR. SID Not vendor specific to GPS engine Recreational to survey grade Easy to use Can edit data dictionary in the field Most of them have a similar version running on the PC, so learning and training is easier. Accept two serial inputs simultaneously Digital camera input

18 ADVANTAGES OF NEW SOFTWARE RHINO SOFTWARE ALLOWS Post Processing of Garmin GPS receiver data Collect feature and attribute data

19 EXAMPLE SCREENS

20 RASTER IMAGES

21 IMAGE

22 LOGGING DATA

23 OFFSETS

24 EXPORTING

25 STYLUS USES

26 APPLICATIONS

27 INFRASTRUCTURE

28 GEOLOGY

29 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.

30 DATA DICTIONARY Crossings Type many picklist Cable line Electrical Line Gas Line Liquid Petroleum Line Overhead Crossing (Other) Overhead pipeline crossing Sewer Line Telephone Cable Water Line

31 DATA DICTIONARY CON T City alpha Company alpha Contact Tel. numberonly Depth cover numberonly Marked? checkbox Vert Sep ft. numberonly Date Visit date mandatory Time Visit time mandatory

32 DATA DICTIONARY CON T Boundariesmany Type picklist City Limits Fence Lines Property Line City alpha Owner alpha Depth Cover numberonly Date Visit date Time Visit time

33 DATA DICTIONARY CON T Roads many Type picklist Railroad Road Centerline Road Edge Subdivision Line Road Name alpha Road Type picklist City County State Highway Federal Highway Interstate Frontage road

34 DATA DICTIONARY CON T Name alpha Mile # Numberonly Equipment picklist Pump Unit Motor Unit Control Valve Control Building Tark Edge Rack Edge Manifold Meters Strainers

35 DATA DICTIONARY CON T Condition picklist Good Fair Needs Repair Needs Replacement Date Installed date Date Visit Date Time Visit Time

36 DATA DICTIONARY CON T Pipe many Type picklist CPL Route Survey Abondoned-in-place pipe Point of intersection Exposure Suspended Pipe Depth cover Date Abondoned date Depth cover numberonly Date Visit date Time Visit time

37 DATA DICTIONARY CON T Check Valve mixed Name alpha ANSI ratingpicklist Date Visit date Time Visit time CV150 CV300 CV600 CV900 CV150

38 DATA DICTIONARY CON T Block Valve mixed Name alpha ANSI ratingpicklist BV150 BV300 BV600 BV900 BV1500

39 DATA DICTIONARY CON T Type picklist ball slab gate slabgt wedge gate wedgeg plug dbl blk/bleed dlbblk

40 DATA DICTIONARY CON T Instrument many Instrument picklist Temperature probe Pressure Probe Test Head Date Installed date Serial No Numberonly Date Visit date Time Visit time

41 DATA DICTIONARY CON T Cathodic Type Name Date Visit Time Visit many picklist Close Interval Survey Interference Bond Ground Bed Rectifier Test Lead alpha date time

42 DATA DICTIONARY CON T Anomalys & Defects Type Name many picklist Anomaly Dent External Corossion Internal Corossion Gouge Lamination alpha

43 DATA DICTIONARY CON T Cathodic Type Name Date Visit Time Visit many picklist Close Interval Survey Interference Bond Ground Bed Rectifier Test Lead alpha date time

44 DATA DICTIONARY CON T Type picklist dent Andent gouge Angoug Lamination Anlamn Internal Corossion AnIntl External Corossion AnExtl O'clock numberonly Postn Dwnst numberonly max depth numberonly max length numberonly max width numberonly

45 DATA DICTIONARY CON T Ext Corr Type localized general Int Corr Tpe localized general Date Visit date Time Visit time picklist ExtLoc ExtGen picklist end

46 DATA DICTIONARY CON T Exposed Pipe Evaluation Check list Waterway Crossing Evaluation Checklist ROW Evaluation Checklist Closed Interval Survey

47 LASER RANGE FINDERS

48 Data acquisition challenge #1 You can t get there from here Terrain separates you from the feature you want to map.

49 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.

50 Data collection challenge #3 You can get there... but the satellite can t

51 Data collection challenge # 4 You can get there, and there, and there...

52 To address these challenges, consider using laser mapping systems

53 The key to laser mapping is... You don t have to get there from here! Instead, just shoot it with the laser.

54 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.

55 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.

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60 Direct GPS Integration GPS Data logging device CRITERION Laser gun

61 Indirect laser / GPS integration Features Laser GPS

62 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.

63 DIGITAL CAMERA AND GIS

64 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.

65 How MediaMapper Works With Digital Still Pictures Take digital pictures while recording GPS data. Media Mapper downloads the pictures and the GPS data file. Click the map to view the pictures of location.

66 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

67 Environmental Application Pollution Monitoring Environmental Assessment Programs Hazardous Spills Public Education and Outreach Mandatory Reporting Waste Contamination Points Cleanup Areas Environmental Data Collection Water Management Wetlands

68 Benefits Works with Off-the-Shelf Components Small, Lightweight for Individual Users No Need for Expensive Outside Programs Simple to Operate Fast Turnaround from the Field to the Internet Quick Association of Images with Maps Creates.shp,.tab, or html maps

69 Questions?