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Drones are reforming the Inspection World

 

Industrial inspection is usually undertaken to ensure the reliability of structures or machinery. For inspecting huge structures it becomes costly, time consuming as well as risky for the managements. Aerial inspection provides the solution by using drone or an UAV, which is not only economic and efficient, but are also saving lives by replacing the risky practices. Plenty of old dangerous bridges and buildings, lightning strikes on wind turbine blades, cracks on solar panels, leakages in oil and gas pipelines, vegetation growth near conveyor lines are now being carried out with the help of a drone technology.

railways

Aerial drone inspection captures data in real-time allowing asset managers to compare the condition of assets with previous imagery and sensor readings, and then match them to manufacturing or industry standards to determine the next course of action in the asset management lifecycle. Maintenance and repair are then scheduled directly from the asset management system, causing minimal disruption to operations. A comprehensive asset management strategy that includes the use of drones uav’s for inspection provides a meaningful alternative strategy to traditional asset management. Such solutions have the ability to shift operations and maintenance processes from reactive to proactive.

chimney drone inspection

Aerial drone inspection makes field inspection safer and more efficient. Considering a field inspector facing a high risk of injury or death while inspecting complex unreachable structures. They are often required to scale large structures to visually inspect potential damage in need of repair. When compared to manual inspections, Aerial drone inspection provides greater safety at job site by reducing costs of operations and manpower. Importantly, it take lesser time to inspect as compared to alternative traditional methods.

pipeline

We at Pigeonis provide aerial drone inspection services for enormous dams, lanky wind turbine blades, heighted cell towers, vast solar farms, conveyor lines, chimneys, cooling towers, long oil and gas pipelines, etc. With highly qualified team of Drone pilots and dedicated engineers for every operation, we provide accurate actionable data and the most reliable solution. We work on quality aerial content, as quality is our key motto. Not just satisfied with industrial inspection? We also provide drone survey. Check out our solutions page for more services. With Pigeonis step into Droneage.

Contour lines generated using Aerial Drone Survey

What are Contour lines?

Contour lines are generated by connecting all the points of similar elevation together. These lines are drawn on a plan of a particular terrain to understand the nature of surface, identify cut fill volume, study water flow characteristics, estimate valley depth and steepness. Contour lines form a smooth curve of same elevation points. Contour lines are also called as isohypse,  isoline, isopleth, or isarithm.

contour lines generation using aerial drone survey
Figure: Contour line illustration

Contour maps are generated of Hill Ranges, Valleys, Mountains, Large lands, Agricultural fields, Farmlands, Forests, Archaeological sites, Water bodies, etc.

What does contour lines indicate?

  1. -: Widely spaced contour lines indicates flat terrain
  2. -: Closely spaced contour lines indicates steep terrain
  3. -: Irregular contour lines indicate uneven surface
  4. -: Concentric closed contour lines with increasing values towards center indicates a hill or elevated terrain
  5. -: Concentric closed contour lines with decreasing values towards center indicates a pond or water body
  6. -: Contour lines with U-shape convexity indicates ridge
  7. -: Contour lines with V-shaped convexity indicates valley
  8. -: When contour lines cross each other, it indicates existence of overhanging cliffs or a cave
  9. -: When contour lines are meeting in some portion, it indicates existence of a vertical cliff

 

What are the uses of Contour lines?

Contour lines are generally used to understand the terrain profile for multiple uses as follows:

  1. -: Depth of cutting and filling is decided from a contour map profile path, when desired level or elevation of road/railway is known
  2. -: Minimizing and balancing earthworks by deciding the routes of the railway, road, canal or sewer lines using contour lines
  3. -: Catchment area and quantity of water flow at any point of nalla or river is found out using contour lines
  4. -: In agricultural work, contours maps are useful as guide lines in planning of trees on hilly terrain and also land improvement project. In addition to this, drainage system is also conveniently planned with contour maps
  5. -: Initial feasibility study for Wind power or Solar Power project, for studying the terrain profile
  6. -: Initial feasibility study for Ropeway construction, a survey needs to be done to analyse the terrain for desired ropeway, cable car path
  7. -: Volumetric calculations are performed as required for extracting the volume of rocks, gravel of a mountain and estimate it’s total value. Hence, Effective Cost estimates is made available with the help of the contour maps
  8. -: Contour lines are also benificial for Mining companies especially for calculating the volume of stocks
  9. -: Archaeological surveyors are using contour lines to get insights about history

contour line generation

Figure: Contour line of small elevated area

How are contour lines made using Unmanned Aerial Vehicle (UAV) or Drone?

Drones are used to collect the data in the form of High quality images. The complete captured data is aligned by aerial triangulation. The aligned data is then ortho-rectified and georeferenced using the GCP information. Subsequently, the final Digital Elevation Model (DEM) and Contour lines at required elevation change are generated.

Want to carry out contour line survey at your site? Call Pigeonis at +91-9004329048 or rather just drop your requirements at contact@pigeonis.in