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DJI Zenmuse L1 (LIDAR)


The Zenmuse L1 integrates a Livox Lidar module, a high-accuracy IMU, and a camera with a 1-inch CMOS on a 3-axis stabilized gimbal. When used with Matrice 300 RTK and DJI Terra, the L1 forms a complete solution that gives you real-time 3D data throughout the day, efficiently capturing the details of complex structures and delivering highly accurate reconstructed models

Instant Clarity. Superior Accuracy.

A Lidar + RGB Solution for Aerial Surveying

The Zenmuse L1 integrates a Livox Lidar module, a high-accuracy IMU, and a camera with a 1-inch CMOS on a 3-axis stabilized gimbal. When used with Matrice 300 RTK and DJI Terra, the L1 forms a complete solution that gives you real-time 3D data throughout the day, efficiently capturing the details of complex structures and delivering highly accurate reconstructed models

Visualize Data as You Fly

LIVOX LIDAR MODULE

– Frame Lidar with up to 100% effective point cloud results
– Detection Range: 450m (80% reflectivity, 0 klx) / 190 m (10% reflectivity, 100 klx)
– Effective Point Rate: 240,000 pts/s
– Supports 3 Returns
– Line Scan Mode and Non-repetitive Petal Scan Mode

Everything in View

RGB CAMERA

– 20MP
– 1-inch CMOS
– Mechanical Shutter

Accurate Details at Your Disposal

HIGH-ACCURACY IMU

– Accuracy: 0.025° (roll/pitch) / 0.08° (yaw)
– Vision Sensor for Positioning Accuracy
– GNSS, IMU, RGB Data Fusion

Point Cloud LiveView

Real-time point clouds provide immediate insights onsite, so operators are informed to make critical decisions quickly.
You can also verify fieldwork quality by checking point cloud data immediately after each flight.

Measurement and Annotation

Acquire and communicate critical dimensions on the point cloud model using measurements and annotations.

One-stop Post-processing

DJI Terra fuses the IMU and GNSS data for point cloud and visible light calculations, in addition to conducting POS data calculations so you can effortlessly generate reconstructed models and accuracy reports.

The DJI Zenmuse L1 is a cost-efficient and easy to use enterprise aerial LiDAR payload, engineered for DJI’s flagship commercial drone, the M300 RTK. The L1 integrates a Livox sensor, high-precision IMU, a one-inch 20MP CMOS visual camera with mechanical shutter, and 3-axis stabilised gimbal system.

Combine it with the M300 RTK and the mapping software DJI Terra for a highly-efficient all-in-one aerial LiDAR solution to obtain 3D point clouds for high accuracy and detailed reconstruction.  The L1 can be used across a range of industry verticals, such as energy, AEC, forestry, public safety, and more.

The highlights of the L1 are:

  • All-in-one Solution: Integrates a Lidar module, an RGB camera, and a high-accuracy IMU.
  • High Accuracy: Vertical – 5cm; Horizontal – 10cm (with 50m flight height).
  • Efficient: Cover 2km² in a single flight (flight velocity 10 m/s, flight height 100m, side overlap ratio 20%).
  • High Density Point Cloud: 240,000 effective points/s.
  • Multiple Returns: Support three returns (Dual and Triple returns, point cloud density 480,000 pts/sec).
  • Measurement Range: 450m maximum (80% reflectivity 0 klx).
  • Real-time Point Cloud View: Able to display and measure point clouds in real time.
  • Weather Resistant: IP44 rating, enabling operators to collect data in rainy or foggy environments.
  • DJI Ecosystem: Use DJI Terra for post-processing data.

MAXIMISE DATA COLLECTION

Generate point clouds in real-time.

Streamline LiDAR Missions

The Zenmuse L1 integrates a powerful and ultra-lightweight Livox Lidar module with a 70° FOV, a high-accuracy IMU, and a 20-megapixel camera with a 1-inch CMOS sensor. The Zenmuse L1 can generate true-color point cloud models in real-time, or acquire a vast area (up to 2km²) of point cloud data in a single flight.

With a Point Rate of 240.000 points per second and a detection range of 450 meters, the ease and speed of capturing quality Lidar data is unprecedented.  The module supports both Line Scan Mode and Non-repetitive Scanning Mode, a unique technology developed by Livox.

This will provide full coverage of the area of interest in a very short amount of time, and allows the sensor to capture data in any direction, instead of along a defined plane. The Zenmuse L1 Lidar solution can easily penetrate vegetation canopies and foliage.

When the aircraft unexpectedly loses GNSS signal, the DJI L1 can continually use the visual assistant camera to receive orientation data and maintain system accuracy within a short period of time.

High Accuracy IMU

DJI L1 Additional Features

Payload Health Management System: Built into the DJI Pilot app, the Payload Health Management System records the total use time of the DJI L1, as well as the number of rotation times, error logs, and product maintenance suggestions.

Real-time Awareness Flight: The LiDAR sensor can obtain the aircraft’s height above the ground in real-time and perform a terrain awareness flight to ensure data quality and flight safety.

Accuracy Report: After the flight, DJI Pilot will generate an inspection report, view the quality of the point-cloud data, the photo position, number of photos, and the RTK status, so the pilot can confirm the quality of the data on-site.

DJI L1 – EMPOWERING AERIAL SURVEYS

LiDAR sensor has a range of uses.

Generate Accurate Models And Reconstructions

The DJI L1 is aimed at commercial drone users who are seeking high-accuracy aerial surveying solutions. The LiDAR sensor can empower clients in energy, AEC, public safety, architecture/heritage, and forestry management. The L1 is ideal for the following scenarios:

  • Topographic Survey: Collect elevation data in a dense vegetation field. The L1 is able to extract Digital Elevation Models (DEM) and Digital Surface Models (DSM).
  • Infrastructure Reconstruction: Reconstruct highly-detailed structures such as power lines, and oil and gas pipelines to reduce manned operations – improving efficiency and increasing safety.
  • Forestry: Due to the multi-echo capability of the DJI L1, the elevation data in dense forest fields can be easily generated and extracted into DEM and DSM.
  • Emergency Mapping Survey: The DJI L1 is capable of capturing real-time, true colour point-cloud models. This provides up to date information for emergency response teams. The IP44-rated L1 can also operate in rainy/foggy conditions, as well as low-light scenarios.
HOW LIDAR CAN HELP YOUR COMMERCIAL DRONE OPERATIONS

Harness The Power Of The DJI Ecosystem

Operators can use the DJI ecosystem for an end-to-end LiDAR surveying workflow. This involves the M300 RTK, the L1 sensor, DJI Terra, and the DJI Pilot app.

  • UAS Platform: DJI M300 RTK drone and L1 payload.
  • Ground Control App: DJI Pilot (able to generate point clouds in real-time).
  • Post-processing Software: DJI Terra (professional version or above).
  • Data Output: 3D point cloud in .LAS format.

Data Acquisition: Plan mission using DJI Pilot app, with a range of mission options available. Make sure the M300 RTK is connected to RTK network, otherwise DJI Terra will not post-process the captured data.

Data Process: In DJI Terra ‘Aerial Photography’ task, select the mapping scene as ‘LiDAR post-processing’, and then select the source folder containing LiDAR IMU and Inertial Navigation Data to start data processing. If the selected folder contains visible light photos, the generated point-cloud file is a visible light point cloud.

PRODUCT SPECIFICATIONS

GENERAL

Dimensions: 152×110×169 mm
Weight Approx: 900 g
Power: 30 W
IP Rating: IP44
Supported Aircraft: Matrice 300 RTK
Operating Temperature Range: -20° to 50° C (-4° to 122° F)
Storage Temperature Range: -20° to 60° C (-4° to 140° F)

SYSTEM PERFORMANCE

Detection Range: 450 m @ 80% reflectivity, 0 klx <br>;190 m @ 10% reflectivity, 100 klx
Point Rate Single return: 240,000 pts/s <br>;Multiple return: 480,000 pts/s
System Accuracy Horizontal: 10 cm @ 50 m <br>;Vertical: 5 cm @ 50 m
Real-time Point Cloud Coloring Modes: True color; coloring by reflectivity; coloring by elevation

LIDAR

Ranging Accuracy: 3 cm @ 100 m
Maximum Returns Supported: 3
Scan Modes: Repetitive line scan mode, non-repetitive petal scan mode
FOV: Repetitive line scan: 70.4°×4.5°<br>; Non-repetitive petal scan: 70.4°×77.2°
Laser Safety: Class 1

INERTIAL NAVIGATION SYSTEM

IMU Update Frequency: 200 Hz
Accelerometer Range: ±8 g
Angular Velocity Meter Range: ±2000 dps
Yaw Accuracy: Real-time: 0.18°, Post-processing: 0.08°
Pitch / Roll Accuracy: Real-time: 0.03°, Post-processing: 0.025°

AUXILIARY POSITIONING VISION SENSOR

Resolution: 1280×960
FOV: 95°

RGB MAPPING CAMERA

Sensor Size: 1 inch
Effective Pixels: 20 MP
Photo Size: 4864×3648 (4:3); 5472×3648 (3:2)
Focal Length: 8.8 mm / 24 mm (Equivalent)
Shutter Speed: Mechanical Shutter Speed: 1/2000 – 8 s / Electronic Shutter Speed: 1/8000 – 8 s
ISO: Video: 100 – 3200 (Auto), 100 – 6400 (Manual)
Photo: 100 – 3200 (Auto), 100 – 12800 (Manual)”
Aperture Range: f/2.8 – f/11

GIMBAL

Stabilized System: 3-axis (tilt, roll, pan)
Angular Vibration Range: 0.01°
Mount: Detachable DJI SKYPORT
Mechanical Range: Tilt: -120° to +30°; Pan: ±320°
Operation Modes: Follow/Free/Re-center

DATA STORAGE

Raw Data Storage: Photo/IMU/Point cloud data storage
Point Cloud Data Storage: Real-time modeling data storage
Supported microSD Cards: microSD: Class 10 or UHS-1 rating or above; Max capacity: 256 GB

POST-PROCESSING SOFTWARE

Supported Software: DJI Terra
Data Format: DJI Terra supports exporting standard format point cloud models:
Point cloud format: PNTS/LAS/PLY/PCD/S3MB format
Reconstruction model format: B3DM/OSGB/PLY/OBJ/S3MB format

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