Drone Surveying - Chapter 1

 

INTRODUCTION TO DRONE SURVEYING

Defination: 

            Collection of various information which is appearing on ground by the cameras or RGBs or Lidars connecting to Drones or Unmanned Areal Vehicles is known as Drone Surveying.

          Previously this kind of survey is also known as Areal Surveying. 

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As we know that Drones are vastly using now a days for various purposes. In our scenario we are using Drones to collect coordinates and heights of various points on a different grounds within a short period and then computed areas and volumes of desired portions in specified software. 

        UAVs and Drones are the components of an Unmanned Aircraft System(UAS) which include a Ground-based controller and a system of communication between those two. The flight of UAVs may operate either by the software in computer or by the human operator(Pilot).

        Drone Surveying and Mapping are basically follows with photogrammetry which follows the merging of series of photos in order to prepare large maps. By this principle the concept of overlapping introduced in the software. Software takes this lapping as  in both X and Y directions. Lapping in X- direction is termed as Overlap or Longitudinal lap. Lapping in Y-direction is termed as Side lap or Latitude lap.

Percentage of lapping for Drone for Agriculture Land:

Longitudinal lap or Overlap : 80%

Latitudinal lap or Side lap : 60%

Percentage of lapping for Drone for Agriculture Land:

Longitudinal lap or Overlap : 90%

Latitudinal lap or Side lap : 75%

Important Abbreviations:

1. UAV: Unmanned Areal Vehicle.

2. DRONE: Dynamic Remotely Operated Navigation Equipment.  

Necessity of Drones in Survey field:

* Time Saving: Drone enables rapid data collection, allowing surveys to be done in a fraction of the time required for Traditional surveying methods.

* Cost efficiency: Cost estimated to complete a project to take levels over 10 sq kms with drone survey is much less than the traditional survey method. 

* Drones provide good accuracy for even larger extents also. Generally a slight error in traditional survey can accumulated to the remaining portion and it is also tough to findout.

*  Surveyors can present the projects in very better way in 2D and 3D formats.

* It requires less man power when compared to traditional method.

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