MOBILEMAPPER FIELD MOBILEMAPPER 6 MOBILEMAPPER OFFICE GIS POST-PROCESSING 1 GIS Post-Processing - Technical Presentation - September, 2010 GIS POST-PROCESSING PREPARATION GIS Post-Processing - Technical Presentation - September, 2010 – Power, USB/PC cable, Active Sync Connection – Install MobileMapper Today on MobileMapper 6 ftp://ftp.ashtech.com/Mobile Mapping/MobileMapper 6/Software/MobileMapper Software/MobileMapper Today/MobileMapper Today.zip File on FTP site is zipped and must be extracted prior to installation Execute MobileMapperTodaySetup.exe file on PC while MobileMapper 6 is connected via ActiveSync MobileMapper Today is installed on to PC and then on to the MobileMapper 6 – Install MobileMapper Office on PC ftp://ftp.ashtech.com/Mobile Mapping/MobileMapper 6/Software/MobileMapper Software/MobileMapper Software.zip File on FTP site is zipped and must be extracted prior to installation Execute Setup.exe file on PC to install MobileMapper Office to PC 2 GIS POST-PROCESSING PREPARATION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Install MobileMapper Field on MobileMapper 6 ftp://ftp.ashtech.com/Mobile Mapping/MobileMapper 6/Software/MobileMapper Software/MobileMapper Software.zip File on FTP site is zipped and must be extracted prior to installation Execute Setup.exe file on PC to install software while MobileMapper 6 is connected via ActiveSync and install the MobileMapper Field software to MobileMapper 6. MobileMapper Field is installed to the PC and then on to the MobileMapper 6 – Versions MobileMapper Today (MobileMapper 6) – V 1.0.0.15 MobileMapper Office (PC) – V 1.0.1.3 MobileMapper Field (MobileMapper 6) – V 1.00 GNSS Toolbox (MobileMapper 6) – V 1.00 3 Installed as part of MobileMapper Field GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 PREPARATION (Continued) – Licensing MobileMapper Office (PC) requires no license MobileMapper Field (MobileMapper 6) must be licensed with activation code Program will not open without license Post-processing for MobileMapper Field must be licensed with activation code Code requested when selecting “Record raw data for postprocessing” box inside the “Recording” tab under the “Options” dialogue boxes 4 GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 OUTDOOR FUNCTIONALITY TESTS – Outdoors cannot be simulated using GNSS Toolbox – Satellites tracking – Raw data logging – Has this option been licensed and is there sufficient memory? – Ground truth against known data – Does the computed position appear correct? 5 GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 DATA COLLECTION – Advice Software activation codes require the user to put the MobileMapper 6 into suspend mode or the code will be lost. With that task done once, it can be powered on and off without losing the code. Use MobileMapper Today to set the clock every time it is turned on to ensure that the clock is set properly before using MobileMapper Field. It is the first clue that the MobileMapper 6 is ready for work. Manually setting the clock does not ensure that the clock is set properly. Good PDOP does not ensure good accuracy. Consider the quality of the GPS signal. One customer who complained about accuracy sent photos showing the receivers lying on the ground. Signals bouncing off the ground are multipath. 6 GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Advice (Continued) Do not expect CORS reference data on the same day of recording. Accuracy has as much to do with the 10 minutes before and after the feature was recorded as it does the ten seconds spent recording a point feature. – Common mistakes and things you should NOT do: Raw data recording begins before the clock is set or before there is a stable DGPS solution. Raw data recording is halted between feature mapping resulting in dozens of tiny raw data files, none of which will process properly. Raw data recording of such short duration that it will not process. Many of these contain ephemeris files too tiny to have recorded the current ephemeris. Good rule of thumb is that a file less than 20 minutes long is wasted effort. Feature mapping that begins within seconds of starting the raw data recording. Put receiver in pocket while walking between features to be logged.. 7 GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Orient GPS unit against the local sky 8 Ensure satellite tracking Ensure DGPS solution if in an SBAS coverage area – MobileMapper Field basics Main screen Position icon DOP Solution type Easting/Northing Scale Menu Log GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – MobileMapper Field basics (Continued) 9 Menu Pause/Resume Stop Layers Job Options Status Exit (not the “X”) GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Create New Job 10 GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Create New Layer 11 Point Feature GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Create New Layer (Continued) 12 Point Feature (Continued) GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Add another layer 13 Line Feature GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Add another layer (Continued) 14 Line Feature (Continued) GIS POST-PROCESSING DATA COLLECTION (Continued) GIS Post-Processing - Technical Presentation - September, 2010 – Add another layer (Continued) 15 Polygon Features GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 16 – Turn on raw data recording Menu / Options Choose memory location Check box and then OK Wait a few minutes in clear view of the sky before recording features. GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 17 – Collect (Log) four points describing a rectangle GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 18 – Collect (Log) four points describing a rectangle (Continued) GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 19 – Collect (Log) four lines describing the same rectangle GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 20 – Collect (Log) a polygon describing the same rectangle GIS POST-PROCESSING GIS Post-Processing - Technical Presentation - September, 2010 Data Collection (Continued) 21 – Turn off raw data recording Wait a few minutes after recording last feature Menu / Options Deselect check box and then OK GIS POST-PROCESSING Post-Processing GIS Post-Processing - Technical Presentation - September, 2010 – Submit raw data files to Joe Sass for pre-analysis 22 – – – – – – – jsass@ashtech.com All shape files (*.shp, *.prj, *.shx, *.dbf) in targeted directory GPS Raw Data in its own folder (*.grw and *.crw) Reference data – Preferably 1 second data rate Rinex data from local CORS “G” file from ProMark/ProFlex 500 base station Create new or open existing Map project in MobileMapper Office Activate collected SHP files from the data collector Import Rover raw data from the data collector Import Reference raw data from file or internet Enter correct reference station position Post-process data Export or transfer data to destination software GIS Post-Processing - Technical Presentation - September, 2010 GIS POST-PROCESSING Follow-up webinar scheduled for… 23 GIS Post-Processing - Technical Presentation - September, 2010 GIS POST-PROCESSING 24