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Some laser rangefinders (e.g., Haglof Vertex Laser Geo) can connect directly to a sub-meter GPS and calculate the target tree coordinates directly. When using these devices, MobileMap can receive and store the tree coordinates at the same time as the tree height information.

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*Offset X/Y is captured from the MobileMap Android device via the onboard GPS antennae or a Bluetooth connected GPS (e.g., Juniper Geode or EOS Arrow 100). It does not come from the laser rangefinder itself, but the capture is triggered when laser rangefinder data are received, so the coordinates stored are the GPS coordinates at the time of laser data capture. It is essential that the GPS antenna be co-located with the laser rangefinder (not at plot center!) for these data to be useful.

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1. Configure MobileMap’s Bluetooth connected devices

   1. Actions > Bluetooth Devices

   2. Find the correct Bluetooth device from the list of paired devices

   3. Select the appropriate device type (Rangefinder LTI or Rangefinder Haglof)

   4. Slide the toggle to enable this device

   5. You should see a message saying that the device has been connected and a green checkbox by the device

   6. Tap Save (disk icon) to close this dialog and save the settings

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Collecting Tree Heights

To collect tree heights, follow the standard cruise workflow to edit a plot and open the tree list. When MobileMap is configured using the steps above, attribute fields that can be populated directly from the connected laser rangefinder will have their column headings highlighted in cyan. In the example below, an LaserTech TruPulse 360R is configured to populate the total height (Ht), distance to tree (Dist) and azimuth to tree (Az) fields. MobileMap is also configured to populate the GPS location at time of laser rangefinder data capture into GPS offset latitude and longitude fields which are hidden from the tree list.

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When using the TruPulse 360R height, distance and azimuth can all be captured in height (HT) mode. When the first component (horizontal distance) is captured, it will be sent to MobileMap. An alert will sound and the distance and azimuth will be populated. When the angle down is captured, an alert will sound but no new data will be populated. Finally, when the angle up is captured, an alert will sound and the height, GPS offset coordinates will be captured from the best available GPS location.

Haglof Vertex Laser Geo

Details coming soon

Troubleshooting

As described above, if you open the tree list and you do not see the cyan highlights for attribute fields that will be populated by the laser range finder then either a) the fields settings have not been properly configured in Settings > MobileMap Cruise > Trees, or b) the laser range finder has not been properly paired, configured or is not on.

If you previously had MobileMap working with your laser rangefinder, but you open the tree list and do not see the cyan highlights, it might mean that the laser rangefinder was not available (asleep, out of range, connected to another device) when the tree list was opened. In this case, try closing the tree list, verify that the laser rangefinder is active, then re-open the tree list. If that doesn’t work, try closing the tree list, then the plot, then open the Bluetooth Devices interface (Actions > Bluetooth Devices). Verify that the device is listed and that the correct device type is selected and that it is enabled. If you see the green checkmark, you should be ready to re-try tree data collection.

If you do not hear the audio alerts but you do see laser rangefinder data being read and stored in the tree list, check your device audio settings and adjust the notification volume.

If you are still unable to correctly configure your device and collect laser rangefinder data, please contact our support team.