QT MIỀN BẮC
Survey services, one data chain.
From GNSS control networks to orthophotos, point clouds and GIS databases. Each service states its deliverables, formats and equipment.
Topographic survey
Topographic mapping by GNSS RTK, total station, UAV photogrammetry and LiDAR in Vietnam. Deliverables: DWG/DGN, DEM, cross-sections and earthwork volumes in VN-2000.
Cadastral survey
Cadastral mapping, parcel extract surveys, boundary monumentation, parcel subdivision and merging. Deliverables: parcel technical dossier and VN-2000 coordinate tables.
UAV aerial mapping
UAV photogrammetry with GCPs/RTK, processed in Metashape and DJI Terra. Orthophotos at 2–5 cm GSD, DSM/DTM, 3D models, flight permits handled end to end.
UAV LiDAR survey
UAV LiDAR with DJI Zenmuse L2/L3 to capture bare-earth terrain under vegetation. Deliverables: classified LAS point clouds, DTM/DSM, contours and topographic maps.
3D laser scanning
Terrestrial laser scanning with Trimble X7 and handheld scanning for buildings, plants, heritage sites and artefacts. Deliverables: E57/RCP point clouds, BIM, as-built drawings.
Construction surveying
Construction control networks, axis and level setting-out, as-built checks, settlement, tilt and displacement monitoring, volume surveys and as-built records to TCVN 9398:2012.
Geospatial data processing
Processing of UAV imagery and LiDAR/TLS point clouds: denoising, classification, registration, DEM and mesh generation, map digitising. Export to CAD, BIM, GIS, LAS, OBJ, 3D Tiles.
Natural resources & environment
Monitoring forests, water bodies, mines and landslides with UAV and LiDAR. Change maps, mine stockpile volumes, disaster damage assessment, delivered on WebGIS.
GNSS RTK rental
Rent genuine South GNSS RTK receivers from the authorized representative of South in Vietnam. Daily, weekly or monthly; calibrated instruments, on-site setup support.
Surveying equipment supply
Authorized representative of South in Vietnam: genuine South GNSS RTK, SLAM, laser scanners and survey USVs. Retail sales of DJI Matrice 4E, M400 and Zenmuse L3.