Content Hub

Keep up to date with our Content Hub for engaging thought leadership industry news and GeoSLAM updates.

Q&A with Bert Meuleman, GeoSLAM Belgium dealer

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reykjavik

GeoSLAM goes North with new dealer in Iceland

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Autonomous Mapping in Harsh and Hostile Environments

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GeoSLAM Partners with Microsol Resources

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real estate

GeoSLAM helps leading media company Zien24 revolutionise their digital workflow

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New partnership for GeoSLAM and NORMET

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office news hero

Senior Promotion to bolster GeoSLAM growth

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Home renovation made easy with the ZEB Family

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GEO Business and SPAR 3D Expo: A tale of two events

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Getting to know you: Abhishek Bhartiya

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geomesure service centre

GeoSLAM expands service centre in France with Geomesure

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zeb horizon manhole

Safe, fast data capture with ZEB REVO on waste management project

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zeb horizon uav

The Dos and Don’ts of Aerial Surveying

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Experience Strongest Ever SLAM with our upgrade campaign

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geospatial commission

GeoSLAM responds to the Geospatial Commission

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Attracting and Retaining the Next Generation of Talent

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Global expansion on the horizon for GeoSLAM

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natwest business hub

GeoSLAM feature on NatWest Business Hub

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csiro visit

GeoSLAM Welcomes CSIRO Visitors to UK HQ

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GeoSLAM providing inspiration in maths

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science channel

GeoSLAM mobile technology features in Science Channel Series in the US

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GeoSLAM launches new ZEB-HORIZON 3D Mobile Scanner

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zeb revo rt scanning

GeoSLAM Launches Game-Changing Technology in the UK during Digital Construction Week

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Importance of safety berms at dump sites

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KTP Case Study: Predictive Monitoring of Rail Infrastructure

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Scanning through wire mesh with SITEMONITOR LIVE

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PROCESSMONITOR LIVE shotlisted for Tunnelling Award!

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Automated Stockpile Volume Monitoring

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3D Laser Mapping & GeoSLAM Global Merger Announced

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GeoSLAM’s CSR Strategy to Promote Students’ English Skills

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The benefits of measuring Shotcrete during application

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GeoSLAM to Demo Fast, Easy and Versatile 3D Mobile Laser Scanning at 2018 SPAR3D Conference

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GeoSLAM to showcase the Future of Construction at Geo Business 2018

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GeoSLAM take Geoterra to new heights with ContextCapture Solution from Bentley

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GeoSLAM announces distribution agreement with Cansel in Canada

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GeoSLAM and Corporate Social Responsibility

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GeoSLAM Academy Events prove a hit with customers

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Quickly and Safely Mapping our Underground World

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GeoSLAM announces UK distributor agreement with KOREC

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GeoSLAM celebrates 5 years in business with new HQ, record growth

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GeoSLAM Launch Time & Cost Saving 3D Mobile Laser Scanners at Dallas Fall BIM Forum 2017

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GeoSLAM and Bentley Systems join forces to take mobile reality modelling indoors

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GeoSLAM Changing The Economics of 3D Laser Scanning with new product launches at INTERGEO

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Verity – GeoSLAM Collaboration Advances Real-Time Construction Quality Management

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Reducing Scanning Time of Historic Sites from Weeks to Hours

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Record Six Months for GeoSLAM Thanks to Boom in Digital Engineering

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GeoSLAM Unveils Predictions for Engineering’s Digital Future

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University Challenge: To Deliver Rapid 3D Results in Half the Time

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GeoSLAM Global Network Expands Both East and West

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GeoSLAM to feature in upcoming BBC Show Countryfile

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forestry data

Making Forest Surveys a Walk in the Park

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GeoSLAM signs up Seiler Instrument for Midwest USA Distribution

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shanghai

GeoSLAM Expands Far East Operations with New Distributors

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GeoSLAM Announces Real-Time Upgrade For ZEB-REVO

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Danish Distributor Attends Annual Surveying Congress

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GeoSLAM Scores Top Marks at Century Old School

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Rapid Mobile Scanning for As Built Building Surveys

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Taking care to save costs and minimise disruption without compromising accuracy

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The Future of Hazardous Unmanned Mobile Mapping

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GeoSLAM Launches Zeb Cam for Zeb Revo

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GeoSLAM and Blackdog Robotics sign partnership agreement to supply unmanned mobile indoor mapping solutions

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GeoSLAM Zeb Revo Shortlisted for Wichmann Awards

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ZEB1 makes history, mapping Brei Holm for BBC’s ‘Coast’

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cape town

OPTRON Appointed as GeoSLAM Dealer for Sub Saharan Africa

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hardwick hall scan

GeoSLAM Announces Global Distribution Agreement for 3D Reshaper & PointCab

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rising star cave

Laser Scanning the Rising Star Cave in the Cradle of Humankind, South Africa

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cowi floorplan

Engineering results ten times faster than traditional survey methods

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zeb horizon uav

The Dos and Don’ts of Aerial Surveying

If you read the news before Christmas or were one of the tens of thousands of people experiencing disruption at London’s Gatwick Airport, you’ll know that drones (unmanned aerial vehicles or UAVs) can cause chaos if used incorrectly.

That’s why we’ve put together this handy guide, with some of the major dos, and importantly, dont’s of surveying with a UAV. Specifically, we’re talking about using the new SLAM-based ZEB HORIZON solution, which as well as being a hand scanner, can also be drone-mounted.

The Dos

  • Do ensure you have the correct licence to fly a UAV and permission from the land owner. You can find out more information about regulations on the CAA website.
  • Do ensure you carry out all pre-flight checks – ensure that there are no hanging cables or loose objects which could interfere with the propellers.
  • Do fly in a grid pattern (perpendicular to the ground), to ensure best coverage, and make sure take off and landing location are in the same position to close the loop required for SLAM to work.
  • Do ensure feature-rich overlap between different scans (at least 20%) – which you can merge together later on in GeoSLAM Hub software.
  • Do use items/features for SLAM feature identification. The ZEB-HORIZON uses features within a 40m range for positioning. Prior to take off, we recommend positioning a feature such as a heavy-duty transport case, a car or tree within 30m of the UAV, in order to ‘fix’ its take off position.
  • If time allows, consider flying the same project at two different heights above ground (maximum 50m). This allows for the same features to be captured from two different incident angles, ensuring excellent coverage.

The Don’ts

  • Don’t waste time carrying out IMU initialisation routines – it’s not necessary! You can use all the flight time to collect data, ensuring you keep time on site to a minimum.
  • Don’t worry about the horizontal direction the ZEB HORIZON is facing. The 360 rotating head of the scanner ensures full coverage.
  • Don’t allow the UAV to make abrupt attitude and acceleration changes – a smooth and steady flightpath will ensure a nice, even distribution of points.
  • Don’t fly near to airports! In the UK, it is illegal to fly a drone within 1km (3280ft) of an airport perimeter, and no higher than 122m (400ft). These distances will vary by country – so make sure to check the laws where you are before taking flight.
  • Don’t hesitate to get in touch with us if you want to find out more about aerial surveying with the ZEB HORIZON. Why not send us an email to info@geoslam.com or give us a call on +44 (0) 1949 831 814 and ask to speak to one of our UAV experts.

Glossary of Terms

ALS: Airborne Laser Scanning

CAA: Civil Aviation Authority

GNSS: Global Navigation Satellite System – a global satellite system used to pinpoint the location of a receiver on earth

LiDAR: Light Detection And Ranging – a method of surveying which utilises pulses of laser light, reflected off surfaces and back to a sensor, to measure distance

SLAM: Simultaneous Localisation And Mapping – an algorithm that locates a device within an environment, and simultaneously maps that environment – without requiring satellite signals.

UAV: Unmanned Aerial Vehicle (a drone)

ZEB HORIZON: The latest mobile mapping solution from GeoSLAM, find out more here!