The Ultimate Guide for Land Surveying with Drones - Part 1

Learn the basics of land surveying with drones, including flight planning and processing imagery to create orthomosaics, digital surface models, contours, and 3d models.

Identify who this course serves, including drone enthusiasts, aspiring entrepreneurs, and land surveyors, and learn to start a drone surveying business with detailed surveying services as part of your offerings.

Explore the market for drone surveyors in real estate, infrastructure, mining, urban planning, and renewable energy, and how drone surveys replace total stations and terrestrial scanners with visualization and analytics.

Explore how drones transform land surveying, covering survey accuracy, ground sampling distance, flight planning, GPS tagging, image capture, safety regulations, and image processing software.

Identify land surveying as determining three-dimensional point positions and distances using gps, robotic total stations, and scanners, then draft plans with cad and gis software for engineering projects.

Discover how drones transform land surveying with high-resolution orthomosaics, digital surface models, and 3D site reconstructions, all in open standard WGS84 coordinates.

Explain how relative and absolute accuracies differ, show how ground sampling distance governs survey precision, and explain using ground control points with differential GPS or RTK GPS for real-world alignment.

For surveying, favor DJI Phantom 4 or Mavic Pro 2 due to best value and seamless integration with third-party flight planning and data processing software.

Plan and execute an autonomous drone flight to capture data for surveying an area, tuning direction, altitude, speed, camera angle, image overlap, and exposure settings.

Plan drone surveys with pc-based flight planning using Drone Deploy or Litchi, then sync to apps, and use app-based planning with internet to access satellite imagery, noting kml limits.

Mark gps boundary points with the gps essentials app, set world geodetic system 1984 and meters, 5 m accuracy, then export a kml for google earth after creating waypoints.

Convert an Excel GPS file to a KML by importing latitude and longitude into Google Maps, creating placemarks, exporting as a KML, and viewing in Google Earth.

Create a boundary polygon from GPS waypoints in Google Earth Pro, export as KML, import into DroneDeploy to generate a flight plan, then adjust altitude and overlap.

Learn to divide a large site polygon into multiple flight plans by splitting a KML polygon into overlapping halves, saving each half, and importing them into DroneDeploy for waypoint-constrained surveys.

Plan oblique image flights with the Litchi app to capture 3-D reconstructions, creating waypoints around the building, a central point of interest, and a 2-second interval.

Practice drone safety and regulations during surveying, flying in good weather with proper lighting, maintaining visual line of sight, using a spotter, and following FAA guidelines and local laws.

Ensure full equipment readiness for drone surveys by following a comprehensive preflight checklist: maintenance, batteries, cables, takeoff pad, safety gear, and essential apps (DJI Go, Drone Deploy, Litchi, GIS Essentials).

Mark boundary points with visible markers before flight so they appear in the orthomosaic and can be overlaid as a boundary layer in autocad.

Select a take off point with at least a 5 meter radius of clear, unobstructed land near the flight plan center to optimize battery life and maintain signal.

Adjust on-site drone surveys by changing take-off points, altitude, and overlap (not below 70%) to handle obstacles and conserve battery, ensuring the survey completes.

Calibrate the drone, set up a DroneDeploy flight plan, and execute nadir image capture with GPS-driven waypoints, then verify image coverage and perform a safe return and post-flight checks.

Remove the drone's SD card, connect it to a laptop, and perform an image quality and coverage check for blurriness, overexposure, and missing areas, then upload to dronedeploy.

Create a new flight plan by copying the original, trim it with white dots to cover the missing image section, adjust lines, then save and sync to the mobile app.

Identify when to return to home during a mid-flight drone survey, then continue flight after battery changes, using distance and remaining battery as guiding factors.

Explore pix4d, a photogrammetry software for generating orthomosaics, point clouds, 3d models, dsms, dtms, and contours. Learn desktop and cloud workflows, measurements, and system requirements for processing imagery.

practice with provided sample datasets to master processing drone imagery for land surveying and post-process with QGIS, AutoCAD, and Google Earth Pro to build client reports and a sustainable business.