Trimble Juno GPS
From AWF-Wiki
(Difference between revisions)
(→Processing in QGIS) |
(→Processing in QGIS) |
||
| Line 48: | Line 48: | ||
# Open the attribute table of layer {{button|text=tree waypoint, waypoints}} by right-clicking the layer in the [[TOC]] and selecting {{button|text=Open Attribute Table}}. | # Open the attribute table of layer {{button|text=tree waypoint, waypoints}} by right-clicking the layer in the [[TOC]] and selecting {{button|text=Open Attribute Table}}. | ||
# Click {{button|text=Toggle editing mode}} [[Image:QGIS_2.0_Edit.png|20px]] to edit or add information. For example, you can change a trees' name in the name column. To add a picture of the point: Type the paths to the pictures into the {{button|text=url}} column. To save the changes, click {{button|text=Toggle editing mode}} again and confirm with {{button|text=Save}}. You can also save while editing by clicking the {{button|text=Save}} [[Image:QGIS_2.0_SaveEdit.png|20px]] button (see '''figure B'''). | # Click {{button|text=Toggle editing mode}} [[Image:QGIS_2.0_Edit.png|20px]] to edit or add information. For example, you can change a trees' name in the name column. To add a picture of the point: Type the paths to the pictures into the {{button|text=url}} column. To save the changes, click {{button|text=Toggle editing mode}} again and confirm with {{button|text=Save}}. You can also save while editing by clicking the {{button|text=Save}} [[Image:QGIS_2.0_SaveEdit.png|20px]] button (see '''figure B'''). | ||
| − | # To add a new column: | + | <!--# To add a new column: |
| − | ## Right click the layer in the [[TOC]] and select {{button|text=Save as}}. Select {{typed|text=ESRI Shapefile}} from the {{button|text=Format}} pulldown-menu and enter (or browse to) the desired path in the {{button|text=Save as}} field (recommendation: save the file under ''<your_geodata_folder>/vector/tree_waypoints.shp''). Check the {{button|text=Add saved file to map}} box. Confirm with {{button|text=OK}}. | + | ## Right click the layer in the [[TOC]] and select {{button|text=Save as}}. Select {{typed|text=ESRI Shapefile}} from the {{button|text=Format}} pulldown-menu and enter (or browse to) the desired path in the {{button|text=Save as}} field (recommendation: save the file under ''<your_geodata_folder>/vector/tree_waypoints.shp''). Check the {{button|text=Add saved file to map}} box. Confirm with {{button|text=OK}}.--> |
| + | # To view the full information for a point, select {{mitem|text=Database --> eVis --> eVis Event Id Tool}}. Select the tree waypoints layer in the [[TOC]] and select a point. The {{button|text=eVis Event Browse}} opens ('''figure C'''). | ||
Revision as of 18:28, 16 November 2013
 |
sorry: |
This section is still under construction! This article was last modified on 11/16/2013. If you have comments please use the Discussion page or contribute to the article! |
- This exercise is part of the QGIS Tutorial 2013/14.
In this exercise you'll get an introduction on how to handle a GPS receiver and how to process data in QGIS
During the practical exercise, we work with the GPS receiver Trimble Juno 3B by Trimble navigation. Of course, there are different GPS navigation devices on the market, supplied by several manufacturers, e.g. those listed wikipedia page.
Contents |
Getting started with the GPS receiver
Startup and configuration
- Press the power button for a few seconds
- Open the windows menu and select TerraSync --> Professional Edition. Wait for a few minutes, until you get a connection to at least three satellites.
- Set the coordinate system and other parameters
- To set the coordinate system and other parameters, select Upper --> Setup.
- Set all parameters to the desired configuration and confirm with Done. You are now ready to navigate.
To find a specific spatial point:
- Set the target
- Select Upper --> Data --> Lower --> Existing Data/New
- Select the folder containing the data (e.g. the tree-waypoints used in the exercise) and click Open.
- Select the point you want to navigate to (e.g. Tree01.
- Click Options-->Set Nav Target and set the point you selected before.
- Set the background map
- Select Upper --> Map.
- Click Layers and check the Background and GNSS trail boxes. The background map should now be displayed.
- To zoom in to your location on the map, select Option --> Auto pan to GNSS position or Auto pan to selection for manual zooming.
- Your position and target appear as symbols? on the map.
- Navigation to the target:
- Select Upper --> Map to see the overview of your position and target.
- Select Upper --> Navigation.
- Follow the displayed compass and also check the Distance tab. Note that you need to move to get the compass working.
- To determin the precise position of ground control points (GCPs):
- After having set a target, select New and enter the name of the point (e.g. GCP01). Confirm by clicking Create.
- Select Point generic --> OK.
- Select Option --> Logging interval and set the interval to 1 second.
- Wait for an interval of 100 Blinks and press Done. Confirm with Yes and your point is saved.
Processing in QGIS
- Open QGIS
- Select Plugin --> Manage and install plugins. Activate the GPS-Tool and eVIS plugins (you can find them by typing the plugin names into the Search bar) as in figure A.
- Click the GPS tools icon
and select Load GPX File. If you already saved a GPX-file on you computer, browse to the file. If you want to download it from the receiver, connect it to the computer and select Download from GPS.
- Load a raster map, e.g. from the course data and locate it under the GPS points (see Exercise 01 on how to load layers). You can find an aerial photograph of the forestry faculty under geodata/raster/aerial/aerial_utm32_WGS84.tif.
- Open the attribute table of layer tree waypoint, waypoints by right-clicking the layer in the TOC and selecting Open Attribute Table.
- Click Toggle editing mode
to edit or add information. For example, you can change a trees' name in the name column. To add a picture of the point: Type the paths to the pictures into the url column. To save the changes, click Toggle editing mode again and confirm with Save. You can also save while editing by clicking the Save 
button (see figure B).
- To view the full information for a point, select Database --> eVis --> eVis Event Id Tool. Select the tree waypoints layer in the TOC and select a point. The eVis Event Browse opens (figure C).
