DJI L1 LiDAR achieved 15mm accuracy during coastal erosion survey - surpassing DJI's own accuracy specifications; Darren said: “For a survey of this magnitude and complexity, a drone was the ideal solution and, by using the M300 RTK and L1, we were utilising the best system available. Image captured by the Phantom 4 RTK and processed at high resolution through three high-performance worker devices. Since the L1 is tightly integrated with DJI’s flight management system, you receive fully-automatic mount control, increased data collection efficiency, and perfectly aligned imagery for accurate geo-referenced data gathering missions. 3. 20MP 1-inch CMOS sensor for high-resolution photogrammetry The DJI L1 LiDAR sensor is capable of achieving 15mm accuracies from 100m flight altitude - a coastal erosion survey has revealed.

Incredibly, the results surpass DJI’s quoted specifications, which state the L1 can obtain 5cm (50mm) vertical accuracy from 50m. Original weight includes the Ronin 4D 6K Combo, Ronin 4D Video Transmitter, PROSSD Mount, PROSSD 1TB, and DL 24mm lens. DJI M600 has 2 D-RTK GNSS antennas receiving the GPS L1/L2 and GLONASS F1/F2 constellations, which are resistant to strong magnetic interference and allow centimeter-level positioning. Please note: There are different ways of interpreting the accuracy of the data. The 15mm accuracy quoted in the article is based on the average accuracy difference between the ground control points and the DTM. However, the absolute average error (basing the calculation on the absolute error values) shows the L1 achieved 31mm vertical accuracy. In both methodologies, the L1 surpassed DJI's specifications of 50mm vertical accuracy from 50m. Permanent certificates can be upgraded to any software version within one year after activation and binding. The paid update period shall start after one year. An upgrade and maintenance fee must be paid to upgrade to any software version released during the paid update period.For more information on the upgrade fee for the Permanent version, please refer to the "DJI Terra Permanent Version Upgrade & Maintenance Fee Rules".

Using the heliguy™ Drone Assistive Programme

For deeper insights, the data set can be turned into a Digital Elevation Model (DEM), as pictured below. With these two new payloads, we are providing an all-integrated complete solution to our enterprise customers active in accurate geospatial data acquisition,” said Arjun Menon, Engineering Manager at DJI in the US. “Having a fully integrated capable and affordable Lidar seamlessly integrated into our best commercial drone is a dream that becomes reality for surveying, mapping and construction professionals. They will be able to see, cover and understand the geospatial context from a totally new perspective thanks to the high level of accuracy and quality of the data collected from these tools in the sky.” The detail of the maps and models produced for Pagham Harbour was thanks, in part, to the quality and the amount of data that the M300 RTK and L1 can collect. Blue (B): 450 nm ± 16 nm, green (G): 560 nm ± 16 nm, red (R): 650 nm ± 16 nm, red edge (RE): 730 nm ± 16 nm, near-infrared (NIR): 840 nm ± 26 nm

In contrast, it would have taken three weeks to collect this level of data using traditional land-based methods. This is something we would struggle to achieve without the overview obtained from the drone LiDAR survey," said Darren.

The DJI RS 3

DJI also added a DFS band on top of the traditional 2.4 GHz and 5.8 GHz settings, which offers 23 channel options that provide crews with more compliant and interference-free transmission channels. A built-in frequency sweeper automatically scans the current electromagnetic environment for the best wireless channel, instantly switching channels when needed. When necessary, users can also manually select an appropriate channel to avoid interference between devices.