DJI Zenmuse L2

DJI Zenmuse L2: Advanced Drone Surveying Payload

The DJI Zenmuse L2 represents a pinnacle in drone surveying technology, integrating cutting-edge LiDAR, high-precision IMU, RGB camera, and a state-of-the-art 3-axis stabilised gimbal system for unparalleled accuracy and efficiency in data collection.

LiDAR Module: The L2 boasts support for up to 5 returns and achieves an exceptional maximum multiple return rate of 1,200,000 points per second, ensuring meticulous capture of intricate details in complex structures with centimeter-level precision.

Detection Range: With a remarkable capability, the L2 offers a detection range of up to 450m @ 50% reflectivity under 0klx conditions, extending to 250m @ 10% reflectivity even in environments with 100klx illuminance.

Point Cloud Rate: Experience unparalleled efficiency with a single return maximum of 240,000 points per second and a maximum of 1,200,000 points per second for multiple returns, ensuring rapid and comprehensive data acquisition.

Scanning Modes: Versatility is at your fingertips with the L2's offering of both non-repetitive and repetitive scanning patterns, heightening the likelihood of detection within the Field of View (FOV) for comprehensive data capture.

Ranging Accuracy: Surpassing its predecessor, the L2 achieves exceptional ranging accuracy of 2cm @ 150m, elevating the standard for precise data collection.

RGB Mapping Camera: Equipped with a 4/3 CMOS 20MP sensor boasting an 84° Field of View (FOV), the L2 enables seamless photogrammetry and the creation of true-color point clouds.

Video Capabilities: Enhance your data collection capabilities with support for 4K @ 30fps video recording alongside the capture of high-quality still imagery.

High-Accuracy IMU: Ensure unparalleled data collection accuracy with the L2's high-precision IMU, delivering real-time yaw accuracy of 0.2° and pitch/roll accuracy of 0.05°.

Positioning Accuracy: Achieve exceptional positioning accuracy with RTK FIX, boasting horizontal accuracy of 1cm + 1ppm and vertical accuracy of 1.5cm + 1 ppm.

Enhanced Workflow Features: Benefit from streamlined data processing and analysis with features such as Point Cloud LiveView and Quality Report functionalities, optimizing efficiency and productivity.

Seamless Integration: Seamlessly integrate the L2 with the DJI M350 RTK or DJI M300 RTK drones, ensuring versatility across various industry verticals for comprehensive data capture.

Robust Design: Operate with confidence in diverse environmental conditions with the L2's IP54 rating, allowing operation in wet or foggy environments, including nighttime data collection.

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Specification

SpecificationValueGeneralDimensions (L×W×H)155 x 128 x 176 mmWeight905±5 gPower28 W (typical)

58 W (max)IP RatingIP54Supported aircarftMatrice 300 RTK (requires DJI RC Plus)

Matrice 350 RTKStorage Temprature-20°C to 60°C (-4°F to 140°F)System PerformanceDetection range450m @50% reflectivity, 0klx;

250m @10% reflectivity, 100klx;

Typical data. Measured using a flat subject with a size larger than the laser beam diameter, 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 subject, the total laser transmitter power is split, and the achievable range is reduced. The maximum detection range is 500 m.Point Cloud RateSingle return: Max: 240,000 pts/s

Multiple returns: Max: 1,200,000 pts/sSystem AccuracyHorizontal: 5 cm @ 150 m

Vertical: 4 cm @ 150 m

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 check points that conformed to the diffuse reflection model. DJI Terra was used for post-processing with Optimise Point Cloud Accuracy enabled. Under the same conditions with Optimise Point Cloud Accuracy not enabled, the vertical accuracy is 4 cm and the horizontal accuracy is 8 cm.Real-Time Point Cloud Coloring CodingReflectivity, Height, Distance, RGBLiDARMaximum Returns Supported5Scanning ModesNon-repetitive scanning pattern;

Repetitive scanning patternFOVRepetitive scanning pattern: Horizontal 70°, Vertical 3°

Non-repetitive scanning pattern: Horizontal 70°, Vertical 75°Laser Beam DivergenceHorizontal 0.2 mrad, Vertical 0.6 mrad

Measured at full width at half maximum (FWHM) conditions. 0.6 mrad signifies that for every 100m increase in distance, the diameter of the laser beam expands by 6 cm.Laser Wavelength905mnLaser Spot SizeHorizontal 4 cm, vertical 12 cm @ 100 m (FWHM)Laser Pulse Emission Frequency240 kHzLaser SafetyClass 1 (IEC 60825-1:2014)Inertial Navigation SystemIMU Update Frequency240 HzAccelerometer Range±6 gAngular Velocity Meter Range±300 dpsHorizontal Positioning AccuracyRTK FIX: 1 cm + 1 ppmVertical Positioning AccuracyRTK FIX: 1.5 cm + 1 ppmRGB Mapping CameraSensor4/3 CMOS, Effective Pixels: 20 MPLensFOV: 84°

Format Equivalent: 24 mm

Aperture: f/2.8-f/11

Focus Points: 1 m to ∞ (with autofocus)Shutter SpeedMechanical Shutter: 2-1/2000 s

Electronic Shutter: 2-1/8000 sShutter Count200000Photo Size5280×3956 (4:3)Still Photography ModesSingle shot: 20 MP

Timed: 20 MP

JPEG Timed Interval: 0.7/1/2/3/5/7/10/15/20/30/60 s

RAW/JPEG + RAW Timed Interval: 2/3/5/7/10/15/20/30/60 sVideo Codec and ResolutionH.264

4K: 3840×2160@30fps

FHD: 1920×1080 @30fpsGimbalStabilisation System3-axis (tilt, roll, pan)Angular Vibration Range0.01°MountingDetachable DJI SKYPORTMechanical RangeTilt: -143° to +43°

Pan: ±105°

Structural limit, not controllable range.Controllable RangeTilt: -120° to +30°

Pan: ±90°Data StorageSupported microSD CardsmicroSD: Sequential writing speed 50 MB/s or above and UHS-I Speed Grade 3 rating or above; Max capacity: 256 GB. Use the recommended microSD cards.Post-ProcessingSupported SoftwareDJI TerraData FormatDJI Terra supports exporting point cloud models in the following formats: PNTS/LAS/PLY/PCD/S3MB