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Surveying · UAV · LiDAR · WebGIS · Authorized representative of SOUTH in Vietnam

Precision from the ground to the sky.

QT Mien Bac delivers topographic and cadastral surveys, UAV mapping and LiDAR scanning, then publishes the data on WebGIS so clients can view and measure it directly in the browser.

Request a quotation View projects on WebGIS ↗
DATUM VN-2000 · CM 105°00' · zone 3° X 2 324 118.42 Y 578 902.17 H 14.86 m Elevation
±1 cm + 1 ppm
GNSS RTK horizontal accuracy
L3 LiDAR
Matrice 400 + Zenmuse L3, UAV LiDAR
500k pts/s
Self-levelling Trimble X7, company-operated
1:500 → 1:10 000
Topographic and cadastral map scales
Equipment partner

Authorized representative of SOUTH in Vietnam

Genuine supply, warranty, calibration and technical support for SOUTH ALPS2 GNSS RTK receivers, ME-series SLAM scanners, SPL-series laser scanners and M20 / M20 Pro unmanned survey vessels (USV). Our survey engineers use the same instruments in the field every day.

SOUTH distribution authorization letter no. STH-26-08SOUTH authorization letter no. STH-26-08, issued 1 March 2026, valid until 31/12/2027
View authorization letter (PDF)
SOUTH equipment Dealer enquiries
Services

Eight services, one seamless data chain

Each service states its deliverables, so design engineers and clients know exactly which files and formats they will receive.

/en/services/topographic-survey

Topographic survey

Topographic mapping for basic design, detailed design and planning.

DWG/DGN · TIN · contours · long and cross-sections
/en/services/cadastral-survey

Cadastral survey

Parcel extract surveys, cadastral mapping, boundary monumentation, land-title dossiers.

Cadastral map · parcel dossier · monument record
/en/services/uav-aerial-mapping

UAV aerial mapping

Aerial photography with GCPs, orthophoto mosaics and 3D models.

Orthophoto GeoTIFF · GSD 2–5 cm · DSM · mesh
/en/services/uav-lidar-survey

UAV LiDAR survey

Canopy penetration, ground filtering and DTMs for forested and hilly terrain.

Classified LAS/LAZ · DTM · DSM · CHM
/en/services/3d-laser-scanning

Terrestrial 3D scanning

As-built capture of buildings, structures, monuments and plants by laser scanner.

E57 · RCP · BIM/as-built model
/en/services/construction-surveying

Construction surveying

Control networks, setting-out, settlement and displacement monitoring, acceptance surveys.

Field books · monitoring reports · as-built
/en/services/geospatial-data-processing

Geospatial data processing

Point cloud and imagery processing, GIS database standardisation, cut-and-fill volumes.

SHP/GPKG · volume tables · analysis reports
/en/services/natural-resources-environment

Resources & environment

Land inventory, forest status, landslides and multi-temporal change monitoring.

Thematic maps · change-monitoring WebGIS
Workflow

From control points to maps in the browser

Six standard steps for UAV and LiDAR survey projects, each with an accuracy check before moving on to the next.

  1. Site reconnaissance

    Boundary, terrain, flight plan, airspace permit.

    Decree 288/2025

  2. Control network

    GCPs and checkpoints by RTK/static GNSS.

    GNSS RTK · CORS

  3. Data acquisition

    Photogrammetric flights, LiDAR flights, terrestrial laser scanning.

    Matrice 4E · M400 + L3 · X7 · SLAM ME

  4. Processing

    Aerotriangulation, orthorectification, ground filtering, classification.

    Metashape · DJI Terra · CloudCompare

  5. Editing

    Terrain, features and contours drafted to national specifications.

    MicroStation · AutoCAD · QGIS

  6. WebGIS delivery

    Clients view, measure and download data via a share link.

    gisapp.qtmienbac.vn
Featured projects

Real data, not just screenshots

Each project opens directly on the QT Mien Bac WebGIS. Background images here are illustrative and will be replaced by real orthophotos.

WebGIS ↗
Lao Cai · post-flash-flood reconstruction

Lang Nu

UAVOrthophotoDTMResettlement planning
 WebGIS ↗
Archaeology

Vuon Chuoi site

3D scanExcavation ortho
 WebGIS ↗
Golf course

Ho Ho Cao

LiDAR0.5 m contours
Equipment

Company-owned equipment

We schedule flights ourselves, with no reliance on subcontracted crews, and instruments are calibrated periodically. The equipment below is used for our survey services. For sale: SOUTH (authorized distributor in Vietnam), DJI surveying lines and Garmin handheld GPS, see Equipment supply.

Full equipment capability →

CategoryEquipmentUsed for
Mapping UAVDJI Matrice 4EOrtho, DSM, 3D models
UAV LiDARDJI Matrice 400 + Zenmuse L3Under-canopy DTM, power lines, corridors
Terrestrial scanningSelf-levelling Trimble X7 (for our services, not for sale)As-built, BIM, monuments
Handheld scanningEinScan LibreArtefacts, mechanical parts
PositioningGNSS RTK receiversControl networks, GCPs, monumentation
ConventionalTotal stations · levelsSetting-out, settlement monitoring
Contact

Send your site boundary, get a quotation within 24 hours.

Phone / Zalo
+84 984 603 838
Address
10BT2, Trung Thu Street, Dai Mo Ward, Hanoi, Vietnam
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Values in this form are examples.

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