GeoMonday 2015.3 – A practical guide to use drones

A practical guide to use drones Geomonday 2015 , Arno Fischer

Potsdam, 14.09.2015

Fachhochschule Brandenburg · University of Applied Sciences

City of Brandenburg

Brandenburg an der Havelis more then 1000 years

oldit is the birthplace

of theCounty of Brandenburg

You see theOld Town hall with

„Roland“ figure


City of Brandenburg

Main streetCity tower


Brandenburg an der Havel

Wir übernehmen Verantwortung für die Fachkräftesicherung und den Technologietransfer in unserer Region

Population: 71.000 (now stable)Average age: 47 years (Germany: 43 years)


Brandenburg University of Applied Sciences - General Facts

• Founded in 1992

• 3000 students, including more than 240 international students from more than 65 countries•3 departments: Informatics and Media, Engineering, Business and Management


Campus at 1910 – preussian cavalry area


Campus at 2015 - Main Building


Campus – sports acitities

Newest activity is gliding


Machine hall from the department of engineering


Our Library was a stable in former times


Our strength

• Campus university (residence, sports facilities, library on campus)

• High quality in applied teaching and learning (top positions in rankings)

• Individual counselling and small study groups• Strong research • Links to research cluster Berlin and Potsdam!


Study courses Faculty of Computer Sciences and Media GradeApplied Computer Science (international) B. Sc.Digital Media M. Sc Computer Sciences B. Sc.Computer Sciences M. Sc.Media Informatics (online) B. Sc.Media Informatics (online) M. Sc.Medical Informatics B. Sc.

Faculty of Engineering Elektronics B. Eng.Mechanical Engineering B. Eng.Mechatronics und Automation B. Eng.Micro System Engineering and Optical Technologies B. Eng.Power Efficiency of Technical Systems M. Eng.Computer Aided Robust Engineering M. Eng.

Faculty of EconomicsBusiness Administration - General Management B. Sc.Business Administration - Internationales Management M. Sc.Business Administration (Long Distance Study) B. A.Security Management M. Sc.Technology and Innovation Management M. Sc.Business Informatics B. Sc.Business Informatics - Information Process Management M. Sc.

24 years Fachhochschule Brandenburg13


Profile in Research

Focus Topics:

• Power Efficiency of Technical Systems and Robust Engineering• Computer Applications in Medicine• Security • Innovation Management• Drone technologies, Detect & Avoid, Anticollision Systems



workflow for 3D-Reconstruction Security issues and legal aspects

questions and actions:• what is the minimum set for a drone mission (Hardware and

Software Requirements)• basics for flying a drone, Safety and Security and legal

aspects• basics to prepare an autonomous flight• concrete steps to prepare and fly the mission• how to process the data (image data)

• e.g. how to get still images from a video stream and more• practical aspects about photogrammetry, especially

stereophotogrammetry• define the workflow for 3D reconstruction using commercial

software• Legal aspects



Basics for Flying a Drone - Drones at FH Brandenburg


• Parrot SA AR.Drone 2.0Entry level to understandflying drones, RPAS

• UAV Oktokopter XL(mikrokopter.de)

Medium level, modulardesigned, RPAS andautonomous flights




• 3DRobotics IRIS+

• 3DRobotics Aero


Basics for Flying a Drone - minimum set for a drone mission


•Drone frame with motors and propellers

•Battery

•RC transmitter and receiver

•Autopilot (flight controller, navigation control, sensors)

•GNSS (gps module,...)

•Ground station with mission planner software and a radio telemetry link


Basics for Flying a Drone - Soft Skills


"Learn to use checklists for flight preparation“

"Learn to be responsible and team-oriented“

"One second of inattention or a programming error can lead to serious damage“

Learning steps and exercises:

1. training with flight simulation software2. RPAS training tasks3. Autonomous flight projects


Basics for Flying a Drone - MultiCopter Safety

• Your first priority must be the safety of people!

• Crashes can happen, because of pilot error or hardware or software malfunction.

• If you are flying anywhere near other people, you are putting them at risk!

• If you are flying too high or near airports you are putting manned aircraft and the people on them at risk!

• Always ensure the battery cable is NOT connected to the power distribution board or harness until you are ready to fly.

• Especially while you are learning, it is recommended that you avoid expensive, stiff, ultra-sharp carbon fiber props.

• Important primary response to a crash, inadequate landing or unknown flight controller state, when testing or flying any of the (waypoint) navigation modes (using GPS):

• Always follow the law

Most important: Keep a safe distance between your Copter and People!



Basics to prepare an autonomous flight

•A simple multicopter becomes a UAV or Drone when it is capable of autonomous flight.•Normally this means taking the accelerometer and gyro information and combining it

with barometer and GNSS (GPS, GLONASS, Beidou und Galileo,......) data and compass so the flight controller understands not only it’s orientation but also it’s position.

•A Ground station with mission planner software which talk to the drone, send it a mission plan (so called Way Points) and controls the execution



Basics to prepare an autonomous flight

In more details a Mission Planner, supports the following features:•Point-and-click waypoint entry, using Google Maps.•Full ground station for monitoring missions and sending in-flight commands.•Select mission commands from drop-down menus•See sensor output and test autopilot performance•Download mission log files and analyze them•Configure autopilot settings for your airframe•And much more



3D-Reconstruction – mission plan



3D-Reconstruction – FH Brandenburg



3D-Reconstruction


Source: Digital PhotogrammetryA Practical Course/Wilfried Linder/Springer-Verlag Berlin Heidelberg 2009


Mission example flight hall – simple part



Mission example flight hall – option part



Mission example flight hall – camera part



Mission example flight hall – mission map





• First trial: take only one from 100 images

• Means all 40 m one picture

• Poor result




• 1773 images

• 141 sec flight time

• each 0,4 m one picture in raw data

• Take from each 10 images one image

• 177 images were used




• 1773 images


• each 0,4 m one picture in rwa data






• 1773 images


• each 0,4 m one picture in raw data




Legal basics and requirements

• Legal privacy regulations – a new law arise soon• Additional regularities (see next slide)

Needs for advancement approval from the state aviation authority, liability insurance, keeping other restrictions, eg Prohibition to fly over crowds

• Flight permission (see next slide)Compliance with all the rules of aviation, e.g. near airports

Permission of the property owner

• Regulatory authoritiesKnowledge of the country, and federal aviation authorities and agencies

• Integration of UAVs into normal airspace operation• Safety measurements

o Collision control with different drones (subject of further studies, e.g. approaches like "FLARM")

o Mobile Aircraft Tracking System


Legal basics and requirements


Airspace structure – flight permission

The International Civil Aviation Organization (ICAO) has set an airspace structure with different airspace classes e.g. C (Charlie) and G (Golf)."Do not fly into Charlie..."Source: http://de.wikipedia.org/wiki/Luftraum


Project today: try to get a 3D model of the hotel


•plan an own mission using missionplanner (download and see more: http://copter.ardupilot.com/ )

•Fly the mission•Extract still images from the video•Let photoscan do the 3D work•Hopfully we get the results before our party


Project today: try to get a 3D model of the hotel


GeoMonday 2015.3 – A practical guide to use drones

Technology

Transcript of GeoMonday 2015.3 – A practical guide to use drones