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UAV’s

Seminar Session

The arrival of drones equipped with cameras, GNSS, LiDAR, multi spectral and other sensors has opened up a box of potential applications ranging from geo-positioned mapping, volumetric modelling for earthmoving, crop management and inspection of difficult-to-reach features. But are UAV service providers learning about outcomes? Are they aware of the impact on clients’ logistics and supply chains, just-in-time strategies and other significant factors?

Session Programme:

12:00 Tue 22   Theatre 1

Direct Geopositioning with Low Cost Drones

Lewis Graham, President/CTO, GeoCue Group Inc

Mapping by drone is a cost effective solution for collecting geospatial data, from simple orthophotos to complex differential volumes. With the exception of simple visualisations such as video, all mapping products need accuracy. This presentation will define accuracy and review the requirement of various products. The range of options in to achieve such accuracies will be presented and the importance of camera calibration will be discussed. Direct geopositioning using low cost drones reduces and sometimes eliminates the need for ground control points. A series of real world mapping projects will demonstrate how direct geopositioning can be used to reduce on-site time and overall project cost.

Lewis is the President and Chief Technical Officer of GeoCue Group, a group of companies whose foci are LIDAR tools and consulting, sensor processing workflow management, point cloud exploitation and, through its AirGon subsidiary, small UAS mapping systems. Lewis is currently serving on Technical Advisory panels for drone systems Research & Development for the Texas and California Departments of Transportation. Lewis is a member of the Point Cloud (LAS) Working Group of the American Society for Photogrammetry and Remote Sensing (ASPRS) and a member of the Transportation Research Board (TRB). He is a board member of the M&S division of the National Stone, Sand and Gravel Association (NSSGS) and the International Society for Photogrammetry and Remote Sensing (ISPRS) Foundation. He is the 2017 winner of the ASPRS Fairchild Photogrammetry award. Lewis holds degrees in Physics and Electrical Engineering.

12:20 Tue 22   Theatre 1

Addressing the supply chain: the true ROI of UAV survey services

William Tompkinson, Principal, Insightful Dimensions

Reasons for utilising UAV surveys are discussed in terms of speed, accuracy and sensor choice. However, this can be a very short-term and insular view to whether UAV surveys are bringing benefit to customers. There is typically little discussion of the implications on supply chains. Drawing upon experiences of Canadian UAV survey company, Sumac Geomatics, in undertaking monthly volumetric monitoring contracts, this presentation will expand the scope of how we assess the impact of these activities. It will illustrate how when monitoring stockpiles, there can be technical decisions made by the UAV provider that will directly influence supply logistics and just-in-time strategies.

Will Tompkinson has worked in the domain of 3D data capture for the purposes of metrology and geomatics applications, for over 15 years. After working in roles ranging from Research Scientist, to Technical Consultant through to Global Sales Manager for organizations that include Ordnance Survey, Optech and Fugro; Will has now spent over two years as Consulting Lead for Insightful Dimensions, working with vendors and end-customers on both sides of the Atlantic. Through his work on these ongoing engagements, Will has a reputation for bringing expertise in both the implementation of, and market issues associated with, delivering projects using laser scanning systems, cameras, inertial navigation systems and 3D imaging solutions on the move.

12:40 Tue 22   Theatre 1

Using UAVs and photogrammetry for surveying road and railway embankment and cutting (earthmoving)

Siim Solovjov, Engineer, EIK Infrakonsult OÜ

Digital surface modelling using small unmanned aircraft systems (UAS) and photogrammetry have made huge advances in recent years. This great advancement in technology has created a serious alternative to traditional surveying methods like GNSS based measurements, tacheometry or laser scanning. For areas ranging from 1000 m2 to 10 ha and up where accuracy requirements are between 2-10 cm in elevation, it is an ideal tool to complement traditional surveying techniques.

Applications for digital surface modelling from photogrammetry are wide and it has found its way to fields from agriculture to virtual reality environment design. This seminar paper is focused on solutions and practices for using these advancements in surveying road and railway embankment and cutting (earthmoving). It also addresses how various aspects of technical choices affect the outcomes of using UAVs as surveying devices.

This seminar paper examines different technical, business and regulatory obstacles that need to be overcome to take full advantage of this new technology and make it one useful part in a box of tools in evaluating earthmoving volumes more efficiently. Experience is drawn from using different flight and camera platforms, workflows and software solutions in different road and railway construction projects, including failures and successes over last couple of years.

Engineer with a life-long passion for technical photography and (model) aviation. Spent last year focused entirely on drone work for a surveying company. He has over three years of experience as an engineer creating various aerial platforms for wide array of different applications including surveying and consulting surveying companies on the use of drones.  He also has over 5 years of experience with various 3D modelling software; 6 years of experience with hobby drones; 10 years of experience with camera equipment and image processing; 10 years of experience in computer sciences, network technologies and process automation. Educational background in Tallinn University of Technology 2001-2007 (telecommunication and computer sciences) and Estonian Entrepreneurship University of Applied Sciences 2007-2010. Trained and licensed as a British small UAV pilot in 2016 and completed PPL-A ground school in 2015.

13:00 Tue 22   Theatre 1

TBC

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