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FieldGenius data collection - Base & Rover in different projects |
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Step by step instructions |
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1. Launch FieldGenius on you mobile device. 2. In the Project Manager window, press New Project and enter a project name. 3. Project Settings let you review the parameters associated to the project such as Coordinate System and Units. Press OK when done. |
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Base setup |
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4. The next window helps you pair your receiver. Press Select Instrument to open Instrument Selection window. 5. Select GNSS Reference. If you have already created a profile for the receiver, press Connect and jump to step 10. To create a new profile, press Add. 6. Enter a name for the receiver and press Save. 7. Press Edit to set up the parameters for the receiver. |
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16. In Map View, press the button labeled Known Position if you want to use a different method to set your base position. 17. This opens the Reference Position window where you’ll be able to change the mode in which you want to enter your base position. In our example, the method is “Averaged Geodetic Position. 18. Press Go back to return in Map View window. Note that “Know position” button changed to “Start Reference”. 19. Press Start Reference to record the position of the base and store the point when ready. |
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Rover setup |
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32. Press the button labelled Standard Measure to define the Measurement Mode to be used to collect points. |
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Collecting features |
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34. Once you finished customizing the tolerances, select one of them using the upper right button in Instrument Settings window. |
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After the survey |
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39. Once the survey is completed, download the data from the Mobile Device and from the SD cards of the receivers (base and rover). 40. Make sure all files are saved in the same folder (see an example below). 41. The field data is now ready to be post-processed. Refer to the article How to process GNSS data recorded using FieldGenius for further instructions. |
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Note: File names given here are for demonstration only. They will vary depending on the receiver you’re using and how you named your project. |
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Project file from the data collector for the rover. Import this file in the post-processor to post-process the features collected with the rover. |
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Project file from the data collector for the base. Import this file in the post-processor to process using the base you collected on the field. |
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The binary (or RINEX) files from the receivers will be automatically imported with the corresponding *.raw files. |
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■ Observations: Number of epochs to record for a point. ■ Solution: Minimum solution type to record a position. If you want to post-process your data, always use “AUTONOMOUS”; at best, RTK position will be recorded, at worse, a lower quality position will be recorded now and will be replaced later by a higher quality post-processed position. ■ Elevation: Required elevation mask. ■ PDOP: Minimum PDOP to consider a epoch as valid. ■ Satellites Computed: Minimum number of satellite to consider a epoch as valid (5 is good). ■ StdDev Horizontal: Minimum horizontal standard deviation to consider an a epoch as valid (always put a high number if you want to post process your data). ■ StdDev Vertical: Minimum vertical standard deviation to consider an a epoch as valid (always put a high number if you want to post process your data). ■ Post Process: Do not check this option. |
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Article: 000101 Related Products: EZSurv Last Update: 2017-11-14 13:47:05 |
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Document information |
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13. In Map View, press the Main button > Settings > Options 14. Make sure Post Processing Tagging is selected. 15. If you check Prompt Raw Logging option, FieldGenius will ask you if you want to recorded raw data upon each receiver connection. |
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8. Enter the antenna height. In Model and Communication, enter the make, the model and the communication port for the receiver. In this example, we are using NavCom SF-3040 connected via Bluetooth on COM3. 9. Press Connect to initiate the connection. |
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20. When finished storing the position, the Link Configure window appears. - Use these setting if you want to do a local RTK (base sending corrections to the rover). - Press Close if you don’t want to start sending corrections. |
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You are now ready to disconnect from your base, create a second project and connect to the receiver you’re using as a rover. 21. From the Map View, press Instrument Settings > Instrument Disconnect. |
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22. To create a new project for the rover, press Main button > Project Manager > New Project. |
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23. To create a new project for the rover, press Main button > Project Manager > New Project. 24. Press Project Settings, make sure the coordinate system matches the coordinate system selected for the base. Press OK when done. 25. Press Select Instrument to open Instrument Selection window. 26. Select GNSS Rover. If you have already created a profile for the receiver, select it from the menu. To create a new profile, press Add. See steps 5 to 9 to set the receiver model, communication port and antenna height. In this example, we are using Altus APS-3 for the rover. 27. Press Connect. 28. When the connection is established, the In Link Configure window appears. - If you configured your local base to transmit corrections in step 20, press Connect to receive these corrections. - If your local base is not sending corrections, press Close. |
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33. To set the tolerances, press Instrument Settings and Sensor Configure. There are different tolerance settings to choose from. See a detailed information about Tolerance Setting below. |
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35. To collect a feature, press on the action button. |
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36. When finished collecting data, stop the raw data logging on the rover by going to Instrument Settings > Raw Data Logging > Stop Logging. |
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37. To close the project and the software, press the main button, select Exit and confirm by pressing on Yes. 38. Finally, stop the base receiver by powering it off. |
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29. In Map View, press Instrument Settings button then Raw Data Logging. 30. On the next screen, make sure the Logging Rate value is set to 1 second. 31. Press Start Logging. Shortly after, <auto name> will be replaced by the name of the new log file. Press Close to continue. It is CRITICAL to start the raw data logging before following the next steps. |
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There are several different ways to collect data with FieldGenius so that it can be post-processed. The complete list of use cases can be found in the article FieldGenius data collection - Overview. This article explains how to collect data using a base and a rover in two separate projects. |
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10. In Map View, press Instrument Settings button then Raw Data Logging. 11. On the next screen, make sure the Logging Rate value is set to 1 second. 12. Press Start Logging. Shortly after, <auto name> will be replaced by the name of the new log file. Press Close to continue. It is CRITICAL to start the raw data logging before following the next steps. If the option Auto start logging after power cycle is activated, the raw data logging will start automatically when the receiver is turned on. |