DJI Zenmuse L2

• By combining GNSS and a self-developed high-accuracy IMU system, this solution achieves 4cm vertical accuracy and 5cm horizontal accuracy. [1]
• It’s ready for work as soon as it’s powered on and can collect point cloud data from a 2.5km² area in a single flight. [2]
• L2 reaches a detection range of up to 250 m (10% reflectivity, 100 klx) and 450 m (50% reflectivity, 0 klx). [3] The standard operational altitude now extends up to 120 meters.
• With a spot size of 4×12 cm at 100m, only a fifth of that of L1, L2 not only detects smaller objects and delivers more detailed models, but can generate DEM.
• Generate a standard-format 3D point cloud model with just a click, as well as a DEM. Point cloud quality can also be analyzed in DJI Terra.
• Zenmuse L2 Supports three display modes - RGB, point cloud, and point cloud/RGB side-by-side display. Quickly preview the recorded 3D point cloud model ^[4] to get real-time progress monitoring.

Compatibility
Zenmuse L2 is compatible with the Matrice 350 RTK and Matrice 300 RTK and only supports DJI RC Plus as the remote controller. Before using, please upgrade the firmware of the aircraft and remote controller to the latest version. To ensure mapping accuracy, make sure the L2 is mounted on a single downward gimbal connector with the cable connected to the right USB-C port (when facing the aircraft).

1. Measured under the following conditions in a DJI laboratory environment: Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). Using repetitive scanning with the RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m. The field contained objects with obvious angular features, and used exposed hard ground checkpoints that conformed to the diffuse reflection model. DJI Terra was used for post-processing with Optimize Point Cloud Accuracy enabled. Under the same conditions with Optimize Point Cloud Accuracy not enabled, the vertical accuracy is 4 cm and the horizontal accuracy is 8 cm.

2. Measured when Zenmuse L2 is mounted on Matrice 350 RTK with a flight speed of 15 m/s, flight altitude of 150 m, side overlap rate of 20%, Calibrate IMU enabled, Elevation Optimization turned off, and terrain follow turned off.

3. The data presented are typical values. Measured using a flat target with a size larger than the laser beam diameter, a perpendicular angle of incidence, and an atmospheric visibility of 23 km. In low-light environments, the laser beams can achieve the optimal detection range. If a laser beam hits more than one target, the total laser transmitter power is split and the achievable range is reduced. The maximum detection range is 500 m.

4. The 3D model has been processed by sparse representation.