GreenValley LiAir 50N User manual

LiAir 50N User Guide • GreenValley International Inc.
Page 1
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LiAir 50N
UAV LIDAR System
User Guide
COPYRIGHT © 2017-2021 GreenValley International Inc.

LiAir 50N User Guide • GreenValley International Inc.
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GreenValley International Inc. (GVI) reserves all right for final explanation, and at its
sole discretion, to change, modify, and remove portions of this document.
No Part of this document may be reproduced or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording, or otherwise, without prior
written permission of GreenValley International Inc.
GreenValley International Inc.
2120 University Ave. Ste. 210
Berkeley, CA. 94706
USA
+1 510.345.2899
[e-mail]
www.greenvalleyintl.com

LiAir 50N User Guide • GreenValley International Inc.
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About This Guide
This document is a general introduction and operation guide for GVI’s LiAir 50N lightweight UAV
LIDAR mapping/survey systems.
As we continue to update and improve the product, you may find some
differences between the contents of this document and your LiAir 50N
system. We will diligently update this guide as the product changes.
Please check with GVI for the latest release of this guide and contact GVI support at
[e-mail] if you have any questions.

LiAir 50N User Guide • GreenValley International Inc.
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Content
1. Read This First ..............................................................................................................................5
2. LiAir 50N System .........................................................................................................................6
2.1 About ......................................................................................................................................................... 6
2.2 System Basics........................................................................................................................................... 6
2.3 System Principles .................................................................................................................................... 6
2.4 Technical Specification .......................................................................................................................... 7
2.5 LiAir 50N System Components............................................................................................................ 8
2.5.1 Laser Scanner........................................................................................................................................................................8
2.5.2 Position and Orientation System (POS).......................................................................................................................9
2.5.3 Control and Storage Unit .............................................................................................................................................. 10
2.5.4 Integrated Camera (Optional)...................................................................................................................................... 13
3. Equipment Setup and Operation Procedure..................................................................... 13
3.1 Assemble and install LiAir 50N Payload Mounting Kit ...............................................................13
3.2 Set up GNSS Base Station...................................................................................................................14
3.3 LiAir 50N Setup and Operation (DJI M300) ...................................................................................16
4. Data Download ............................................................................................................................ 20
4.1 Download LiAir 50N Data ...................................................................................................................20
4.2 Download Base Station Data .............................................................................................................21
4.3 Download Camera Data ......................................................................................................................21
5. Data Processing............................................................................................................................ 22
5.1 Project Folder Structure ......................................................................................................................22
5.2 Data Post-processing ..........................................................................................................................24
5.2.1 Open Project...................................................................................................................................................................... 24
5.2.2 Select and Configure Parameters ............................................................................................................................... 25
5.2.3 Georeferencing Point Cloud Data .............................................................................................................................. 31
5.2.4 Data Quality Assessment............................................................................................................................................... 34
6. Special Notes............................................................................................................................. 43

LiAir 50N User Guide • GreenValley International Inc.
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1. Read This First
Important Notices
STOP! PLEASE READ THIS SECTION CAREFULLY BEFORE USING THE
PRODUCT!
LiAir 50N systems use Class 1 (IEC60825-1:2014) eye-safe laser sensors. If you have any
concerns, please contact GVI for details.
System operator must be at least 18 years old.
Tampering with the product is strictly prohibited and will void the Product Warranty. Any
repair, modification, or upgrade must be performed by GVI technician or authorized service
provider.
Do NOT use any power supply outside the specified voltage range (12~24 V, 0.7A@24VDC).
Incorrect voltage supply may cause permanent damages to the integrated instruments and
other hazards. Damage caused by the use of an unauthorized power supply are not covered
by the Product Warranty.
STOP using the product and contact GVI support immediately, if there is any visible damage
or if persistent system warnings or alarms are observed. Failure to do so may result in
permanent damage to the LiAir 50N system.
This product is NOT water-proof. Do NOT operate in rain or snow. Water damage is NOT
covered by the Product Warranty.
This product is a high-precision mapping and surveying instrument that must be handled
with care. Damage caused by improper handling of the product are not covered by the
Product Warranty.
Properly disconnect all batteries, antennas, and cables after use.
This product should by stored and transported in the protective case provided with the LiAir
50N at the time of purchase or in a productive case authorized for use by GVI.
Clean the product thoroughly after each use. Do NOT use water.
When not in use, store LiAir 50N system and accessories in a cool and dry environment.