SERVICES
- Survey: A Differential Global Positioning System (DGPS) is an enhancement to the Global Positioning System (GPS) which provides improved location accuracy, in the range of operations of each system, from the 15-metre nominal GPS accuracy to about 1–3 centimetres in case of the best implementations. We carry out DGPS traverse, static observations & Real Time Kinematic (RTK) observations with appropriate DGPS survey mission planning. We also undertake affixing monuments at Ground Control Points.
- Total Station Survey: A total station (TS) or total station theodolite (TST) is an electronic/optical instrument used for surveying and mapping. It measures both vertical and horizontal angles and the slope distance from the instrument to a particular point, and an on-board computer to collect data and perform triangulation calculations. Thus x,y,z coordinates of all the observed points are obtained with regards to reference start point.
- Drone Survey: A drone refers to unmanned aerial vehicle (UAV), usually fitted with RGB or multispectral cameras, and LIDAR sensors to capture aerial data of the Earth’s surface. During a drone survey with an RGB camera, the ground is photographed several times from different angles, and each image is tagged with coordinates. Drones are gaining popularity because they gives latest and very high-resolution images in much lesser time as compared with time required in acquisition of high resolution satellite images.
- Levelling: Levelling is a process of determining the height of one level relative to another. It is used in surveying to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.
- Mapping: Mapping refers to preparation of vectorised maps in prescribed templates using field survey data, high resolution images and other maps.
- Engineering drawings: Engineering drawings refer to drawings or plans showing different views (top, section, etc.) of the surveyed area.
SURVEY
- Ground Control Network: A ground control network is a network, often of triangles formed by connecting Ground Control Points (GCPs), which are measured precisely by DGPS. Establishment of precise Ground Control Network is utmost important for any land survey (total station, etc) and also for geo-rectification of high resolution images acquired by satellites or aircrafts or drones. A ground control network consists of stable, GCPs that are identifiable on the site as well as in the maps/ images. Ground Control Network includes horizontal (X-Y) and vertical (Z) controls.
- Topographic Survey: A topographic survey refers to measurement location (x,y,z) of any manmade or natural features on a given part of land and recording of surface/ terrain across the given area.
- Boundary Survey: Boundary survey focuses at demarcation of any land parcel/ built property with maximum precision and often followed by affixing monuments at the boundary positions.
- Route alignment survey: As the name suggests, such surveys are done along the alignment of linear features such as road, railway and metro track, canal, cable, pipeline, etc.
- Construction survey: Construction surveys relate to transfer of layout drawings to the site with precision. Such surveys are done at various stages of the construction of large buildings and engineering structures like bridges, dams, etc.
