The DJI Zenmuse L1 Lidar is DJI's official lidar system. The functionality of this lidar is fully integrated with DJI's drones and DJI's software applications, making it different from existing aftermarket lidars. Due to its compatibility with DJI's new Matrice 300 series drone, the L1 is the ultimate all-in-one solution for surveying, mapping, and inspections.
In this blog article, we will look at DJI Zenmuse L1 in more detail, but, first, let’s start with Lidar.
What is Lidar?
LiDAR stands for Light Detection and Ranging, which is basically using lasers to collect data about a surface, which can then be used to create 3D models.
LiDAR is a relatively new technology. Engineers and land surveyors began using it in the early 1960s to produce maps of rivers, streams, and other geographic locations
LiDAR differs from other methods of 3D modelling like photogrammetry, which involves taking dozens to hundreds of pictures and stitching them together into one detailed model.
In addition, it is important to note that the LiDAR sensor only measures positions and not RGB data, making the monochrome dataset difficult to interpret.
Zenmuse L1
In terms of UAV lidar platforms, the DJI L1 sensor and the M300 platform offer a competitive solution. Any surveyor who regularly needs to get topography data should consider it.
The Livox Lidar module, high-accuracy IMU, and CMOS camera on a 3-axis gimbal enable L1 to capture and generate point clouds at 240,000 points per second in real-time. It can detect targets up to 450 m away. The L1's goal is to provide precise 3D point clouds focusing on mapping as an end-to-end solution.
The L1 is a solution to capture 3D information inherently, because of the way the lidar sensor works, which uses lasers and time of flight to measure distance.
Because the L1 captures this 3D information by default, it doesn't require additional processing for the depth information, which means it does not require as much processing time to generate 3D information as images do. As a result of the L1's quicker processing time, it outperforms the P1.
Furthermore, the L1 can map in low light conditions and in areas with heavy foliage, so you can distinguish between vegetation and the ground.
In this article, we decided to simplify things and provide you with insights into the most exciting features of the Zenmuse L1.
DJI Zenmuse L1 Key Features
With the Livox frame Lidar module and a visible light camera with a 1-inch sensor on the Zenmuse L1, you can generate true-color point clouds in real time or acquire 2 square km of point clouds in one flight.
Using the high-precision IMU, a vision sensor for positioning, and GNSS data, Zenmuse L1 is capable of rendering centimeter-accurate reconstructions.
In addition, it is worth noting that the L1 can operate even in foggy or wet conditions as a result of its IP54 rating. The Lidar module is able to detect objects at night thanks to its active scanning method.
Application Use Cases
Energy and Infrastructure - The Zenmuse L1 provides accurate details and increases operational efficiency by generating 3D models of structures both complex and simple. A combination of the Zenmuse L1 and Matrice 300 creates the ultimate solution for longitudinal studies with high repeatability.
Topographic Mapping - It's ability to generate highly accurate Digital Surface Models (DSM) and Digital Elevation Models (DEMs) makes the DJI Zenmuse L1 a valuable tool for topographic mapping. Land surveyors can quickly create topographic maps with accurate Digital Models.
Surveying - Due to its ability to generate accurate point clouds and 3D models, this aerial LiDAR payload can be used to support design, engineering, and construction surveys throughout the full project lifecycle. DJI Zenmuse L1 has the power and versatility to support your operations, whether you're mapping large work sites, performing critical infrastructure inspections or creating detailed 3D models of heritage sites.
Thank you for reading!
The Zenmuse L1 is a high-quality product with excellent performance. Utilising the L1 payload to its max capability typically requires coupling it with the right mission plans. For instance, ensuring smooth turns during mapping missions can lead to overall better data collection.
At Hammer Missions, we help UAS teams collect high quality data for a variety of use-cases through our mission planning & data analysis software.
If you haven't got a Hammer Missions account as yet and would like to try Hammer and capture data with the M300 and Zenmuse L1 you can get started on our free trial.
To learn more about our enterprise solutions, including mission collaboration, data processing and AI solutions, please contact us at team@hammermissions.com.
We look forward to hearing from you.
- Team at Hammer Missions