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Support for Zenmuse L1

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Specs

General

Product NameZenmuse L1
Dimensions152×110×169 mm
Weight930±10 g
PowerTypical: 30 W; Max: 60 W
IP RatingIP54
Supported AircraftMatrice 300 RTK
Operating Temperature Range-20° to 50° C (-4° to 122° F)
0° to 50° C (32° to 122° F) (when using RGB mapping camera)
Storage Temperature Range-20° to 60° C (-4° to 140° F)

System Performance

Detection Range450 m @ 80% reflectivity, 0 klx ;
190 m @ 10% reflectivity, 100 klx
Point RateSingle return: max. 240,000 pts/s ;
Multiple return: max. 480,000 pts/s
System Accuracy(RMS 1σ)1Horizontal: 10 cm @ 50 m;
Vertical: 5 cm @ 50 m
Real-time Point Cloud Coloring ModesReflectivity, Height, Distance, RGB

Lidar

Ranging Accuracy (RMS 1σ)23 cm @ 100 m
Maximum Returns Supported3
Scan ModesNon-repetitive scanning pattern, Repetitive scanning pattern
FOVNon-repetitive scanning pattern: 70.4° (horizontal) × 77.2° (vertical) ;
Repetitive scanning pattern: 70.4° (horizontal) × 4.5° (vertical)
Laser SafetyClass 1 (IEC 60825-1:2014) (Eye Safety)

Inertial Navigation System

IMU Update Frequency200 Hz
Accelerometer Range±8 g
Angular Velocity Meter Range±2000 dps
Yaw Accuracy(RMS 1σ)1Real-time: 0.3°, Post-processing: 0.15°
Pitch / Roll Accuracy(RMS 1σ)1Real-time: 0.05°, Post-processing: 0.025°

Auxiliary Positioning Vision Sensor

Resolution1280×960
FOV95°

RGB Mapping Camera

Sensor Size1 inch
Effective Pixels20 MP
Photo Size5472×3078 (16:9); 4864×3648 (4:3); 5472×3648 (3:2)
Focal Length8.8 mm / 24 mm (Equivalent)
Shutter SpeedMechanical Shutter Speed: 1/2000 - 8 s
Electronic Shutter Speed: 1/8000 - 8 s
ISOVideo: 100 – 3200 (Auto), 100 – 6400 (Manual)
Photo: 100 - 3200 (Auto), 100 - 12800 (Manual)
Aperture Rangef/2.8 - f/11
Supported File SystemFAT (≤32 GB); exFAT (>32 GB)
Photo FormatJPEG
Video FormatMOV, MP4
Video ResolutionH.264, 4K: 3840×2160 30p

Gimbal

Stabilized System3-axis (tilt, roll, pan)
Angular Vibration Range0.01°
MountDetachable DJI SKYPORT
Mechanical RangeTilt: -120° to +30°; Pan: ±320°
Operation ModesFollow/Free/Re-center

Data Storage

Raw Data StoragePhoto/IMU/Point cloud data storage/GNSS/Calibration files
Supported microSD CardsmicroSD: Sequential writing speed 50 MB/s or above and UHS-I Speed Grade 3 rating or above; Max capacity: 256 GB
Recommended microSD Cards3SanDisk Extreme 128GB UHS-I Speed Grade 3
SanDisk Extreme 64GB UHS-I Speed Grade 3
SanDisk Extreme 32GB UHS-I Speed Grade 3
SanDisk Extreme 16GB UHS-I Speed Grade 3
Lexar 1066x 128GB U3
Samsung EVO Plus 128GB

Post-processing Software

Supported SoftwareDJI Terra
Data FormatDJI Terra supports exporting standard format point cloud models:
Point cloud format: PNTS/LAS/PLY/PCD/S3MB format

Notes

1. The accuracy was measured under the following conditions in a DJI laboratory environment: after a 5-minute warm up, using Mapping Mission with Calibration Flight enabled in DJI Pilot, and with the RTK in FIX status. The relative altitude was set to 50 m, flight speed to 10 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1000 m. DJI Terra was used for post-processing.
2. Measured in an environment of 25℃ with a target (80% reflectivity) 100 meters away. The result may vary under different test conditions.
3. The recommended microSD cards may be updated in future. Visit the DJI official website for the latest information.

FAQ

Function
Function
Parameter
Parameter
Application
Application
App
App

Function

How does the L1 perform high-accuracy post-processed modeling?
For high-accuracy post-processed modeling, you can import the data from the SD card into DJI Terra with one click. This will generate a colorized point cloud model with high-accuracy PPK-IMU position and orientation calculation supported.
Which model reconstruction formats does the Zenmuse L1 support?
· The L1 supports the following model reconstruction formats:
· Point cloud formats: PNTS, LAS, PLY, PCD and S3MB;
· Model formats: B3DM, OSGB, PLY, OBJ and S3MB.
Which types of flight missions does the the Zenmuse L1 support?
The L1 currently supports 2D Orthomosaic and Corridor Mapping flight missions.
What is the L1's auxiliary vision sensor used for?
The vision sensor provides altitude data. This means that if the GNSS signal temporarily fails, the aircraft's accuracy will not be affected for up to 60 seconds.
What is the L1's RGB camera used for?
The RGB camera of the L1 provides basic functions for taking photos and recording videos and provides real-time color information for the point cloud data during the scanning process. This allows the L1 to output true color point clouds and reality models.
Note that Lidar scanning and video recording cannot work simultaneously.
Which measurement operations can be performed during real-time point cloud rendering?
During real-time point cloud in the Pilot, the point, line and plane measurements can be performed.

Parameter

What is the protection level of the Zenmuse L1?
The L1 has an IP44 rating according to the IEC60529 standard. This means that it is protected against solid objects over 1mm in size and against water splashed from all directions. The protection level is not permanent however and will decrease over time due to device wear.
To ensure the highest levels of protection:
• Before installing, make sure that the interface and surface of the gimbal are dry;
• Before use, make sure that the gimbal is firmly installed on the drone and the SD card protective cap is clean, free of foreign objects, and closed;
• Before opening the SD card protective cap, wipe the surface of the drone clean.
What aircraft is the L1 compatible with?
The L1 is compatible with the M300 RTK. Before using, please upgrade the firmware of the drone and remote controller to the latest version.
Does the camera require an SD card?
The camera requires a MicroSD card with Class 10 or higher transmission speed or rated UHS-1 , with up to 256 GB supported.
What is the Field of View (FOV) of the Zenmuse L1 LiDAR?
In Non-repetitive Scanning mode, the FOV is 70.4°x77.2°.
In Repetitive Scanning mode, the FOV is 70.4°x4.5°.
What is the maximum measuring range of the Zenmuse L1?
The maximum measuring range of the L1 is 190m@10%, 100klx ; 450m@80%, 0klx.
The recommended typical working height is 50m-150m.
What is the scanning frequency of the Zenmuse L1?
The L1 provides three scanning frequencies: one/two returns: 80K/s, 160K/s, and 240K/s; three returns: 80K/s, 240K/s.
How many scanning modes does the Zenmuse L1 have?
The L1 has two scanning modes: Non-repetitive Scanning mode and Repetitive Scanning mode.
How many returns does the Zenmuse L1 support?
The L1 supports 4 types of returns:
One return: highest intensity;
One return: first return;
Two returns;
Three returns.[TR2]
What is the IMU accuracy of the Zenmuse L1?
In typical operating scenarios, the IMU accuracy of the L1 is 0.025°(roll/pitch)/0.08°(yaw).
What is the surveying and mapping accuracy of the L1?
At a flight height of 50 m, the vertical accuracy of the L1 can reach 5 cm and the horizontal accuracy can reach 10 cm.
Which scanning mode does the L1's Lidar module adopt?
The Lidar module of the L1 adopts an Advanced Frame Scanning mode. This ensures that all point clouds collected are valid point cloud data.
On which gimbal of the the M300 RTK can the L1 be mounted?
The L1 can be mounted on the right downward gimbal port (when facing the drone) or the upward gimbal on top of the M300 RTK.

Application

Can the L1 work at night?
The Lidar module of the L1 has active detection capability which can scan terrain to collect point clouds during nighttime or other low light conditions.
How efficient is the surveying and mapping operation of the Zenmuse L1?
At a flight height of 100 m and a velocity of 10 m/s, a single flight with the M300 RTK and the L1 can collect data covering an area of 2 km2.
What are the application scenarios of the Zenmuse L1?
The L1 can be widely used in multiple scenarios including:
· Topographic surveying and mapping
· Power transmission line corridor modeling
· Emergency response surveying and mapping
· Detailed modeling
· Agriculture & forestry investigation

App

Which apps are compatible with the Zenmuse L1?
The L1 currently supports only the Android version of the DJI Pilot App.

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