Topcon Rtk Survey Procedures

Transcript

Created by Derek Martin 05/08/2009 Topcon RTK Survey Procedures Perform the Survey -Put base receiver on tripod -Put rover on Topcon Rod -Turn on Base Receiver by holding down green button -Turn on Rover by holding down green button -Turn on FC-200 Datalogger by pressing green button 1. Start TopSurv by double clicking TopSurv Icon LED Green Red/Yellow RED STAT light Flashing: Flash indicate number of GPS satellites being tracked N/A Quick Flash: Unsolved Position. REC light Solid: Logging Data LED blinks at data interval N/A Solid: Memory Full. No data being logged BATT light Flash: 85% + charge remaining on internal batteries Flash: 85% - 15% charge remaining on internal batteries Flashing (Rover): Modem is in receiver mode. N/A Flash: 15% or less charge remaining on internal batteries Solid (Base): Modem is in transmitting mode 2. Start new job by clicking New Solid: RX light a. Type in a name for the Job Radio link est. Flashing No Light: modem is (Base & Rover): i. Click in the text box and a keypad With Red Flash: turned off Improper configuration Modem is receiving will appear data. ii. Enter the name and then click Enter Table explaining LED lights on Base and Rover units b. Click Next c. Select GPS configuration i. Choose HIPERLITE from the Config dropdown menu ii. Choose OEWRI TS if using as a TS datalogger d. Click Next e. Select the coordinate system i. Choose Missouri Central (unless elsewhere) from the projection dropdown menu ii. Choose NAD83 from the Datum dropdown menu iii. Choose None from the Geoid dropdown menu f. Click Next g. Select the unit of measurement and Angle (DMS) h. Click Next i. Select the Display i. Coord Type = Grid ii. Coord Order = Northing, Easting, Ell Ht iii. Azimuth Origin = North iv. Disp Dir As = Azimuth v. Disp CL Pos As = Station vi. Full Station = 100.0 j. Click Next k. Select desirable alarms l. Click Finish at the top of the screen 3. You will now be prompted to Highlight and Select a Bluetooth device a. On the Bluetooth devices screen click find b. The rover (384-7363) and the base (384-7359) should now appear in the Devices window 4. First Select the base (384-7359) and click Select 5. Now on the main menu screen, click Setup GPS 6. Click Status (optional) a. Under the Pos tab check your current position Created by Derek Martin 05/08/2009 b. Under the Sys tab check battery power and radio link signal strength c. Under SVs check satellite geometry 7. Click Start Base a. Give the base point a name b. Enter a code for the point if applicable c. Enter the Antennae height d. If setting up over a known point, enter in the coordinates e. If not setting up over a known point click Auto Pos f. Click Start Base g. A message will confirm that Base was started successfully. 8. Now back at the main menu, click the Bluetooth icon at the top of the screen to switch devices a. Click Find if both devices don’t appear in the window b. Now select the rover (384-7363) c. Click Select 9. You are now ready to begin the survey a. Take the Topcon rod with the rover connected to it and stand over your first point b. On the main menu click Survey c. Record a point - click Topo i. Under the Topo tab enter a point name ii. Enter a code (point description) iii. Enter the antennae height iv. Click Start v. When the point has been recorded a chime will sound d. Continue step C. until the survey is complete 10. When the survey is finished, shut down all equipment by holding down the green button. Download Data to a PC 1. Connect datalogger to computer with Sony USB cable (in Derek’s top drawer) 2. Turn on Datalogger a. Make sure project you’re downloading is closed 3. On your PC, start Topcon Tools (you’ll need the USB dongle to do this) 4. On the startup screen either open an already existing job or create a new job by clicking New Job a. Enter the new jobs name b. Click O.k. 5. Now click Job on the toolbar, then Import from Device 6. On the Import From Device window, navigate to the job of interest, select the job and click Open Created by Derek Martin 05/08/2009 Procedure for Using RTK as Base Station Only (Including Elevation) Record Base Point in the Field 1. 2. 3. 4. 5. 6. 7. 8. Set up tripod in an area with an open view of the sky Attach tribrach to tripod and level Attach Base receiver to tripod Measure the height of the Base receiver a. Use the optical plummet on the tribrach to find the plumb point b. Measure from the plumb point to the bottom of the base receiver where it connects to the tribrach c. Record measurement in field book Push green button to turn base receiver on Push and hold down FN button until REC light begins to flash Leave base receiver on for at least 15 minutes, however it is preferable to leave it on for at least two hours When done hold FN button until REC light stops flashing, the press and hold green button to turn power off. Download and Correct Base Station Data 9. Download Files a. Connect base station to computer with serial cable. Plug into Port D on base station b. Press green button on base station to turn on c. On your PC, start PC-CDU program d. Select the correct com port and then click Connect e. Under File, select File Manager f. Select the Download path tab and then navigate to the download location g. Select the Download files tab and then select the files that you wish to download h. Click Download. Depending on the number of files being downloaded this could take up to an hour. i. When finished downloading click Exit. 10. You will now need to convert the downloaded files (which are in .tps format) to RINEX files. a. On your PC, start Topcon Link program b. Under File, select Convert Files c. Click the Add files button d. Select the file(s) you wish to convert e. Set your Destination folder and Destination format (RINEX – GPS+ Raw Data) f. Click the Advanced conversion options i. Uncheck GLONASS ii. Leave GPS, L1, and L2 checked g. Click Convert 11. Send file to OPUS for correction a. Go to www.ngs.noaa.gov/OPUS/ b. Enter your e-mail address c. Navigate to base station file location and select base file d. Select Antenna Type (TPSHIPER PLUS) e. Add antenna height (m) f. Upload file i. Click Upload to Rapid Static if <15 minutes of data was recorded ii. Click Upload to Static if >2 hours of data was recorded Created by Derek Martin 05/08/2009 g. A report containing the points Latitude, Longitude and elevation will be e-mailed to the address specified. This could be received 5 minutes after submission or 2 hours after submission depending on the backlog of files to be corrected at OPUS. h. The correction report appears as follows: Created by Derek Martin 05/08/2009 Example of OPUS Report with Elevation and Corresponding Accuracy Highlighted FILE: log0154n.10O 000016608 NGS OPUS SOLUTION REPORT ======================== All computed coordinate accuracies are listed as peak-to-peak values. For additional information: http://www.ngs.noaa.gov/OPUS/about.html#accuracy USER: [email protected] RINEX FILE: log0154n.10o SOFTWARE: EPHEMERIS: NAV FILE: ANT NAME: ARP HEIGHT: DATE: June 07, 2010 TIME: 16:14:28 UTC page5 0909.08 master23.pl 081023 START: 2010/06/03 13:32:00 igr15864.eph [rapid] STOP: 2010/06/03 16:34:00 brdc1540.10n OBS USED: 7628 / 8787 : 87% TPSHIPER_PLUS NONE # FIXED AMB: 52 / 58 : 90% 1.02 OVERALL RMS: 0.014(m) REF FRAME: NAD_83(CORS96)(EPOCH:2002.0000) E W EL ORTHO X: Y: Z: -59964.347(m) -5026275.599(m) 3913080.240(m) LAT: LON: LON: HGT: HGT: 38 5 10.89369 269 18 59.34152 90 41 0.65848 141.238(m) 171.063(m) Northing (Y) [meters] Easting (X) [meters] Convergence [degrees] Point Scale Combined Factor 0.041(m) 0.066(m) 0.049(m) ITRF00 (EPOCH:2010.4209) -59965.085(m) -5026274.204(m) 3913080.102(m) 0.041(m) 0.066(m) 0.049(m) 0.058(m) 38 5 10.91790 0.058(m) 0.042(m) 269 18 59.31056 0.042(m) 0.042(m) 90 41 0.68944 0.042(m) 0.048(m) 140.062(m) 0.048(m) 0.050(m) [NAVD88 (Computed using GEOID09)] UTM COORDINATES UTM (Zone 15) 4217930.906 703155.710 1.42940807 1.00010834 1.00008617 STATE PLANE COORDINATES SPC (2401 MO E) 250033.148 233901.304 -0.11320196 0.99993652 0.99991436 US NATIONAL GRID DESIGNATOR: 15SYC0315517930(NAD 83) BASE STATIONS USED PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m) DL6149 MOSC MODOT ST CLAIR CORS ARP N382241.409 W0905807.290 40898.4 DL6310 MOBW MODOT BELLEVIEW CORS ARP N374217.742 W0904438.617 42671.9 DL6016 MOFE MODOT FESTUS CORS ARP N381141.328 W0902321.178 28470.6 JC1682 NEAREST NGS PUBLISHED CONTROL POINT WASHINGTON LOOKOUT TOWER N380440.098 W0904149.141 1516.4 This position and the above vector components were computed without any knowledge by the National Geodetic Survey regarding the equipment or field operating procedures used.