Our Technology — Sealmatics

Aerial Survey

Survey-Grade UAV Drones

Our fleet of survey-grade unmanned aerial vehicles (UAVs) are equipped with RTK/PPK positioning systems, enabling centimetre-level accuracy without requiring extensive ground control points. Combined with LiDAR and RGB photogrammetric payloads, we produce orthomosaics, digital terrain models, and 3D point clouds that match or exceed ground survey standards.

We use drones to map terrain that is unsafe, inaccessible, or simply too large for ground crews — saving significant time and cost on every large-scale project.

Positioning

RTK / PPK GNSS

Accuracy

±1–3 cm horizontal

Payloads

LiDAR, RGB, Multispectral

Outputs

DTM, Orthophoto, Point Cloud

Ground Survey

Total Station & Theodolite

Electronic total stations are the cornerstone of our ground survey operations. They combine precise angle measurement from theodolites with electronic distance measurement (EDM) to give three-dimensional coordinates of any point. Our instruments support reflectorless measurement, allowing safe and accurate surveys of structures, road surfaces, and hazardous areas.

Used across cadastral, topographic, as-built, and setting-out surveys, our total stations deliver consistent millimetre-level results regardless of terrain.

Angular Accuracy

±1″ – ±5″

Distance Range

Up to 5,000 m

Distance Accuracy

±1 mm + 1 ppm

Mode

Reflector & Reflectorless

Satellite Positioning

GNSS & RTK Systems

Our multi-constellation GNSS receivers track GPS, GLONASS, Galileo, and BeiDou satellites simultaneously, providing robust positioning in challenging environments such as urban canyons and forest canopy. With Real-Time Kinematic (RTK) and Post-Processed Kinematic (PPK) techniques, we deliver centimetre-level positioning in real time.

GNSS is central to our geodetic surveys, control network establishment, and drone positioning — ensuring every output is georeferenced to national and international datum standards.

Constellations

GPS + GLONASS + Galileo + BDS

RTK Accuracy

±8 mm + 1 ppm H

Initialisation

<10 seconds typical

Data Link

UHF radio / GSM / Internet

Data & Mapping

GIS Software & Analytics

We use industry-leading GIS platforms including ArcGIS and QGIS to process, analyse, and present spatial data. Our data scientists design custom geospatial databases, spatial analysis workflows, and interactive mapping outputs tailored to each client's needs — from simple PDF maps to fully managed cloud-hosted spatial databases.

Complementary tools include AutoCAD Civil 3D, Bentley MicroStation, Agisoft Metashape, and custom Python-based geospatial processing scripts for large-scale automation.

Platforms

ArcGIS, QGIS, AutoCAD

Processing

Metashape, CloudCompare

Formats

SHP, GeoTIFF, LAS, DXF, KML

Scripting

Python / PyQGIS / GDAL

More Instruments

Additional Survey Equipment

Automatic & Digital Levels

High-precision optical and digital levels for establishing accurate horizontal planes, levelling control networks, and differential levelling surveys.

Echo Sounder / Single-Beam

Single and multi-beam echo sounders for hydrographic bathymetric surveys, measuring water depth and seabed topography.

3D Laser Scanner

Terrestrial LiDAR scanners for rapid capture of complex structures, industrial facilities, heritage sites, and deformation monitoring.

CORS Network Access

Access to Continuously Operating Reference Stations for network RTK corrections, enabling high-accuracy positioning without local base stations.

Thermal & Multispectral Imaging

Drone-mounted thermal and multispectral cameras for agricultural surveys, solar farm inspections, and environmental assessments.

Field Data Collectors

Ruggedised field tablets and data collectors running industry-standard survey software for real-time data capture, QC, and field-to-office workflows.