On 10/10, DJI announced the Zenmuse L2. We believe the new L2 will offer exceptional technical improvements over both the L1 and the current mid-tier sensor market. We’re excited to share what we know about the delivery timeline, and how we view the technical specs.
DJI’s long-anticipated L1 sensor is finally here, and we’ve been doing dozens of test flights and spending hundreds of hours flying and analyzing data to create a real-world, field-tested review of the newest DJI L1 sensor.
DJI states that “The P1 supports 24mm, 35mm, and 50mm lenses with industry-specific DL mounts. Only use lenses engraved with the "DJI Enterprise" logo to produce survey-grade accurate results.” But, there is more to the story.
There are numerous ways to process GNSS data from the DJI M300 RTK and the Phantom 4 RTK. This article will discuss the five most common methods for processing data from DJI RTK drones and weigh their strengths and weaknesses.
Read the article to get answers to these common questions:
Can I use my Trimble, Leica, or Topcon base with the Phantom 4 RTK?
Is it possible to use my NTRIP correction service without a base station?
Will the DJI D-RTK 2 work as a standalone base or rover?
Trey Swann from Aerotas presented at The Oklahoma Society of Land Surveyors (OSLS) Convention on Friday, March 1st, 2019. Trey covered the complete field workflow and the complete office workflow for drone surveying. Use this page to download the content from that presentation.
Presentation Slides - What it Takes to Collect Survey Grade Data by Drone
ASPRS Positional Accuracy Standards for Digital Geospatial Data
Aerotas Flight Operations Checklist
PPK Correction File
Earlier this year, Logan Campbell, founder and CEO of Aerotas, spoke at the Land Surveyors Association of Washington (LSAW) annual conference on how to make a profit when flying drones for land surveying applications.
The video is embedded below, and the materials referenced in the video can be downloaded at the bottom of this page.
On February 22, 2019, Aerotas Founder and CEO, Logan Campbell, spoke at the Utah Council of Land Surveyors Summit (UCLS 2019). The presentation is titled “From Drone to Linework”, and covers the workflow requirements to get from flying a drone, to survey-grade linework files. This includes the following topics:
Photogrammetry Processing
Airborne RTK / PPK GNSS Processing
Measuring & Reporting Accuracy
Drafting Linework
Finishing in CAD
Creating a Complete Workflow
The video is embedded below, and the materials referenced in the video can be downloaded at the bottom of this page.
When you use Aerotas to process your drone data, you immediately get access to our Flight Ops team. The sole responsibility of Flight Ops is to guide your mission planning and data collection process. This will ensure that you are successfully planning missions, setting UAS-specific ground control, and getting the most accurate results possible from your drone-collected data.
We have processed thousands of drone survey projects for our customers, and we have learned the hard way why photogrammetry is a Ph.D. level science. We have banged our heads against every wall there is, and learned some valuable lessons that we now apply to every project we complete for our customers.
Airborne RTK for land surveyors has been a technology with an enormous amount of promise for quite a few years now, but was being held back by extremely expensive, complicated, and unreliable technology. However, with the recent announcement of the DJI Phantom 4 RTK, it seems as if this is about to change. Overall, the Phantom 4 RTK is a great piece of technology that will improve both accuracy and efficiency for most surveyors, but it is not a magic bullet. Good operations are required both in the field and in post-processing the data.
