Survey-grade capture from photogrammetry, LiDAR and RTK
Centimetre accuracy across sites a ground crew would take days to walk
Aerial survey delivers centimetre-accurate geospatial data across sites that would take a ground crew days to walk. Drone Safe Store supplies UK survey teams, civil engineering contractors, and local authorities with DJI photogrammetry and LiDAR platforms, GNSS ground control, and the processing software that turns raw capture into a deliverable. As a DJI Enterprise A-Rank retailer and a YPO-approved public sector supplier, we hold survey hardware in UK stock and configure it before it ships. Call 01243 859444 to talk through a mission profile with our team.
Accurate Data, Fewer Site Days
Three reasons survey teams move to aerial capture
Survey-grade accuracy Achieve 3 cm horizontal and 5 cm vertical accuracy without ground control points using a Zenmuse P1 on an RTK-enabled Matrice. That standard is sufficient for topographic mapping, cadastral work, and volumetric calculation.
Safer data capture Survey quarry faces, live carriageways, contaminated ground, and unstable structures without putting a surveyor on the hazard. The aircraft holds position while the sensor does the work.
Faster turnaround Cover 3 km² in a single P1 flight, or up to 10 km² per flight with a Zenmuse L3 on a Matrice 400. A task that once ran to a week of ground survey compresses into a morning of flying and an afternoon of processing.
Photogrammetry
Photorealistic reconstruction from RGB capture
Photogrammetry builds georeferenced 2D orthomosaics and textured 3D models by triangulating overlapping images. The output is measurable, so a site engineer can pull distances, areas, and volumes straight from the model without returning to site. It suits progress monitoring, earthwork calculation, cadastral mapping, heritage recording, and facade documentation.
The Zenmuse P1 pairs a 45 MP full-frame sensor with interchangeable 24 mm, 35 mm, and 50 mm DL lenses on a three-axis gimbal. Its global mechanical shutter fires at 1/2000 s and TimeSync 2.0 aligns camera, flight controller, RTK module, and gimbal at microsecond level, which is what delivers 3 cm horizontal accuracy without laying ground control. A 0.7 second capture interval covers 3 km² in a single flight, rising to 7.5 km² across a working day with Smart Oblique Capture.
The Matrice 4E brings the same discipline to a compact airframe. Its 4/3 CMOS wide camera captures 20 MP through a mechanical shutter at a 0.5 second minimum interval, and every unit is factory-calibrated with residual distortion held under two pixels. Flight time reaches 49 minutes, enough to complete most site-scale area routes on a single battery.
Capture five-directional oblique imagery in a single automated pass, removing the second mobilisation a separate oblique flight would need
Generate a rough model on the controller with Smart 3D Capture, then fly a surface-following route against it for irregular structures
Process directly in DJI Terra, which reads the factory calibration parameters rather than solving them from scratch
Deploy the M4E for site-scale work and the P1 on a Matrice 400 or Matrice 350 RTK for corridor and large-area capture
LiDAR
Ground returns through vegetation and low light
LiDAR measures distance by timing laser pulses, so it does not depend on ambient light or surface texture. Where photogrammetry sees a tree canopy, LiDAR pushes pulses through the gaps and returns ground points beneath it. That makes it the correct tool for forestry, terrain modelling under vegetation, powerline corridors, and any site where a bare-earth DTM is the deliverable.
The Zenmuse L2 returns 4 cm vertical and 5 cm horizontal system accuracy at 150 m altitude, with a detection range of 250 m against 10% reflectivity targets in 100 klx conditions and 450 m against 50% reflectivity in darkness. It supports up to five returns per pulse and captures 1,200,000 points per second in multiple-return mode, covering 2.5 km² per flight. An integrated 4/3 CMOS RGB camera colourises the point cloud in the same pass.
The Zenmuse L3 extends that envelope considerably. Its 1535 nm laser reaches 950 m against 10% reflectivity targets at a 100 kHz pulse rate, and beam divergence of 0.25 mrad produces a spot roughly one fifth the size of the L2's, which is what allows it to resolve individual conductors and branches. Accuracy runs to 3 cm vertical and 4 cm horizontal RMSE at 120 m, holding 5 cm vertical at 300 m.
Adjust pulse rate from 100 kHz to 2 MHz to trade point density against altitude and coverage
Select Linear, Star-Shaped, or Non-Repetitive scanning to match terrain mapping, canopy penetration, or complex urban geometry
Record up to 16 returns per pulse for dense vegetation where a single return would miss ground entirely
Colourise point clouds from dual 100 MP mapping cameras with a combined 107° horizontal field of view
Cover up to 10 km² in a single flight at 300 m on a Matrice 400, supporting daily coverage approaching 100 km²
RTK, PPK and Ground Control
Anchoring your survey to real-world coordinates
RTK corrects aircraft position in flight by streaming corrections from a base station or network, tagging each image or laser pulse with a centimetre-accurate position as it is captured. PPK applies the same correction after landing, matching logged raw satellite observations from the aircraft against those from a base station. The practical difference is resilience: RTK needs an uninterrupted correction link throughout the flight, whereas PPK tolerates signal dropouts because the maths happens later.
Choose PPK for rural corridors, dense woodland, mountainous terrain, and anywhere mobile coverage is unreliable. Choose RTK when you need positional confidence in real time, or when the site has stable network coverage and you want the data usable straight off the card.
The D-RTK 3 Multifunctional Station covers both workflows. It tracks five GNSS constellations across 19 frequency points and operates in three modes: base station broadcasting corrections to multiple aircraft at once, relay station extending range through obstructed terrain, and rover station for establishing and checking ground control on foot. In rover mode it resolves to 0.8 cm + 1 ppm horizontal and 1.5 cm + 1 ppm vertical when fixed.
For PPK specifically, the D-RTK 3 logs raw satellite observations throughout the session. Import those alongside Matrice 4E capture data into DJI Terra 4.4 or later and local PPK resolves in a single click. Battery endurance runs to 10 hours in rover mode and 7 hours as a base station, which covers a full survey day without a swap.
Establish and check ground control points on foot in rover mode, then verify your aerial output against them
Broadcast corrections to several aircraft simultaneously from one base station on multi-crew sites
Extend operational range through built-up or wooded terrain using relay mode with the Matrice 4 Series
Record raw observations for PPK resolution when correction links cannot be guaranteed in the air
Pair with an Emlid Reach RS4 where you need iOS compatibility or a receiver that works outside the DJI ecosystem
Get In Touch
Speak to Our Enterprise Specialists Today
Tell us about your surveying requirements and we can support you with this.