ZENMUSE L2 User Manual

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ZENMUSE L2

User Manual

• Make sure that there is only one rmware update le on the microSD card.

• DO NOT power off the aircraft or detach the gimbal and camera while updating the

rmware. It is recommended to delete the rmware update le on the microSD card

once the rmware is updated.

L2 Calibration

Major calibration errors may result in issues such as layered point clouds and inaccurate color

rendering. Select to calibrate the L2.

Re-calibrating the Internal and External Parameters

1. Collecting Calibration Data

Make sure that there is a facade of the building in the mapping area and the area is larger

than 200 m × 200 m. Using Area Route to create a route of about 5 minutes, and enable IMU

Calibration, Elevation Optimization, RGB Coloring, Single return and Repetitive scanning. Set

the side overlap ratio to 50%, ight route altitude to 100 m, and speed to 10 m/s. Perform

the ight to collect the data.

2. Using DJI Terra to Export Calibration File

Use DJI Terra (v3.9.0 or later) to create a LiDAR Point Cloud Processing task, import the

calibration data collected in Step one, and select LiDAR Calibration. Click Export Calibration

File after the processing task is completed. The generated calibration le is the .tar le in the

lidars/terra_lidar_cali project folder.

It is recommended to check if the point cloud data had any issues such as layered point

clouds or inaccurate color rendering. Repeat Steps one and two if there are issues. Proceed

to Step three if there are no issues.

3. Calibrating the L2

Copy the calibration le to the root directory of the microSD card, insert the microSD card

into the L2, install the L2 onto the aircraft. Power on the aircraft and wait approximately 5

minutes for the calibration to complete.

4. Checking the Result

After the calibration is completed, remove the microSD card from the L2. Insert it to a

Update Status Alarm

Alarm Descriptions

1 short beep Firmware update detected. Preparing to update

4 short beeps Updating rmware. Do not stop update

1 long beep followed by 2 short beeps Firmware update successful

Continuous long beep Firmware update failed. Try again and contact DJI Support

if the problem persists

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Dji ZENMUSE L2