1. Manuals
  2. Brands
  3. Green Valley Manuals
  4. Measuring Instruments
  5. LiBackpack C50
  6. User manual

Green Valley LiBackpack C50 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LiBackpack C50 and is the answer not in the manual?

Questions and answers

Related Manuals for Green Valley LiBackpack C50

Summary of Contents for Green Valley LiBackpack C50

  • Page 2: Table Of Contents

    Table of Contents Introduction User Guide Copyright 1. Safety Warning 2. Introduction 2.1 Product Name 1.5.1 2.2 Technical Specifications 1.5.2 3. Compose 3.1 Laser Scanner 1.6.1 3.2 Camera 1.6.2 3.3 PC 1.6.3 3.4 Wifi Information 1.6.4 4. Setup 5. Work Flow 5.1 Prepare for Acquisition 1.8.1 5.2 Initialize the System...

  • Page 3: Copyright

    Copyright 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.

  • Page 4: Safety Warning

    Please read this user guide carefully before you use the product and follow all operating and use instructions. The manual will be updated from time to time as the product upgrades. To access the latest user guides for LiBackpack C50, go to or contact a GVI Tech Support Specialist.

  • Page 5: Introduction

    Localization and Mapping) technology to acquire point cloud data with true color texture information. The LiDAR point cloud data acquired using LiBackpack C50 can be applied in many fields and industries such as integrated indoor and outdoor measurement, underground space data acquisition, tunnel engineering, digital factory, digital mining, forest inventory, and building information modeling.

  • Page 6: Compose

    1. Protection for laser scanner 2. Battery charger and power cable 3. Battery (not included) 4. Scanner arm, laser scanner, and panoramic camera 5. LiBackpack C50 storage control unit 6. Control point accessories 7. Main connection line 8. LiBackpack C50 Wired Line 9.

  • Page 7: Laser Scanner

    3.1 Laser Scanner Laser Sensor Velodyne VLP-16 Max Range 100m Wavelength 903nm Scan Rate 300000pts/s Horizontal FOV 360° Vertical FOV ±15° LiDAR Range Accuracy ±3cm Operating Temperature -10℃~60℃ 3.2 Camera Camera Type Panoramic Camera Resolution 3840*1920 Refresh Rate 30fps 3.3 PC Operating Voltage：19V Storage Space: SSD 512GB CPU：quad core 8 threads...
  • Page 8 Protocol：IEEE 802.11n Security：WPA2-Personal Gateway address：192.168.12.1 Connections allowed：1 device Connection range：5m Wifi SSID: LiBackpack(default password：greenvalley) LiBackpack Wifi information...

  • Page 9: Setup

    4. Setup LiBackpack C50 supports Backpack Scanning Mode for data collection. STEP 1. Place LiBackpack C50 Main Body and Scanner Arm on a suitable work surface. LiBackpack C50 Main Body and Scanner Arm STEP 2. Insert the Scanner Arm into the Main Body.
  • Page 10 Tighten the screw. STEP 4. Rotate the lock ring of the telescopic lever counterclockwise so that the telescoping poles can be extended or retracted smoothly. Loosen the lock ring STEP 5. Hold the bottom of the lock ring with your left hand, grip the bottom of the Scanner Arm with your right hand and extend it upwards.
  • Page 11 Extend the Scanner Arm STEP 6. While the right hand holding the bottom of the Scanner Arm, use your left hand to tighten the left lock ring clockwise, and then tighten the right lock ring. Tighten the lock rings STEP 7. Insert one end of the handheld cable to the Scanner Arm Align the red dot on one end of the Handheld Cable with the one on the Scanner Arm and then insert.
  • Page 12 EMO push-pull connector STEP 8. Fully Set Up for Backpack Scanning Mode Fully Set Up...

  • Page 13: Workflow

    Short-press the camera button and you will hear a short beep, indicating the camera is switched on and the camera information will appear on LiBackpack interface. Turn on the Camera After the initialization process for the system, the indicator light (RUN) will stay on when LiBackpack C50 is on.

  • Page 14: Start Scanning

    Users using the recommended tablets can open up the UI straight from the desktop shortcut. Connecting to the LiBackpack User Interface via Ethernet Network: Connect LiBackpack and the tablet with the LiBackpack C50 Ethernet Cable. Navigate to the Network settings on the tablet. Set the IP address and subnet mask to the following values: IP address: 192.168.1.99...

  • Page 15: Acquire Data

    Power ON Laser Scanner by pressing the Laser Scanner On/Off Button once. The red indicator light surrounding Laser Scanner On/Off Button will illuminate and the laser scanner will vibrate gently. Make LiBackpack C50 balance in the horizontal position. Click on the Start button in the lower left corner of the browser-based LiBackpack user interface. Once point cloud in the display, please walk in the “8”...
  • Page 16 Scanning Data When the data acquisition process is done, please walk in the “8” pattern again which will take about 1 minute before you press the Stop button below the Main Window and wait for the countdown. The data acquisition process is completed when the countdown window closes. Once the session is over, turn off the camera and the scanner.

  • Page 17: Export Data

    Shut down the mainframe 5.5 Export Data 5.5.1 Export Point Cloud Data 1.USB flash disk transmission:Insert a USB storage device into the USB ports. Click the Copy Button below the Main Window of the web- based UI. Select the .ply and .bag files to be transferred to the USB storage device. Details of data transfer will be displayed in the dynamic status bar, including the number of files being passed to the external storage device, the total size and speed of the data being transferred.
  • Page 18 Unplug the USB drive 2.Data cable transmission: When the device is turned on, connect one end of the network cable to the device and the other end to the computer, and set the computer "IP address: 192.168.1.99, subnet mask: 255.255.255.0",Enter the URL "\\192.168.1.200" at the computer network, enter the internal storage space of the device, open the "share"...
  • Page 19 3.Video Stitching Open insta360 studio 2021 software and leave all options in "Settings - Preferences - Codec Settings" unchecked as shown in the following picture Softeware Preferences Change the suffix of the .mp4 file copied in STEP 2 to .insv and drag it into the red frame as shown in the picture. After loading the video, leave "Enable FlowState Anti-shake"...

  • Page 20: File Formats

    GVI for further processing. Please enclose a readme .txt with .bag file to provide following information: 1. Data collection location: xxxxxx; 2. Scanning equipment: LiBackpack C50; 3. Scanning scene description: xxxxxx (e.g., indoor, forest, factory);...

  • Page 21: Preview Point Cloud Data With Lidar 360

    5.6.2 .ply file Real-time scanning result for data preview. Naming rules: .ply file is named by the system time when data collection started (e.g., 2018-05-16-17-24-53.ply indicates that data collection started at 2018/05/16 17:24:53). 5.6.3 .xyz file Trajectory file processed in real time, including relative coordinates. Naming rules: start time +_trajectory.

  • Page 22: Extended Function

    LiDAR360 Loading Data LiDAR360 software would start to load data. After loading, click EDL in the tool bar of the LiDAR360 window. An Elevation view with EDL is shown as follows. EDL Display Effect 5.8 Extended function 5.8.1 Clean up Data When system storage space is inadequate (as shown in the Copy interface) and old data is no longer needed, tap on the Clear button to clear data from the system.
  • Page 23 Clean up Data 5.8.2 System Firmware Upgrade Firmware upgrades can be realized by USB drive installation. Users can acquire upgrade packages from GVI and place them in the root folder of a USB drive. Tap on the Upgrade button. The following interface will tell you about current version. System Upgrade Note: If the package is non-existent, placed wrong, or renamed, then the system will not detect and proceed.
  • Page 24 System Version Information 5.8.4 Real-time Processing Parameter Settings LiBackpack generates point cloud data, .ply file, in real-time processing. Before data acquisition, the parameters for real-time processing can be set in UI Setting. These parameter settings will affect the real-time point cloud data file .ply, but not the raw data .bag. Tap on the Setting button on UI interface to view/set the following parameters: Min Points Num：the minimum number of points in a point cloud frame which will participate in SLAM processing.

  • Page 25: Collect Point

    Parameter Settings 5.8.5 Wi-Fi Settings When not collection data, you can set Wi-Fi name and password by clicking the Wi-Fi Button in the extension menu. Wifi Name Suffix：The default Wi-Fi name is LiBackpack. And you can add it with a suffix. Password：The default password is greenvalley.
  • Page 26 If you need to verify the relative accuracy of the device or register the cloud with geographical coordinates, you can collect points in handheld scanning mode. The installation method is slightly different from the backpack scanning mode, but the data collection method is completely the same.
  • Page 27 connection Finished, see full device below:...
  • Page 28 Handheld mode 5.9.2 Collect Control Point To collect the control points during data collection, click the Count button in the bottom page, set the counting time as 5s. If you need to use the top fixture to collect point, point the sharp end of it to a specific corner point, and set Height as 1mm; If you need to use the bottom fixture to collect point, point the sharp end of it to a specific corner point, and set Height as 0mm.
  • Page 29 Select "Registration > Point Pairs" after data processing is done. Import geotag.txt under the working directory. Import control point Skip the header, and set the control point file as "to align". Click Apply and you can check the control point in the point cloud viewer.If you need to do registration, just input the reference point clouds coordinates in the match table and click **Apply Transform".
  • Page 30 Point cloud registration...

  • Page 31: Standard Operation Procedure

    5.In WIFI mode, keep the mobile device within 5 meters of the LiBackpack C50 to avoid transmission latency and connection errors. 6.It’s recommended to keep each collection session within 30 minutes and less than 2km. After collection, turn the power off for 5 minutes, allowing the laser scanner to cool down.
  • Page 32 3.Slow down (ideally 1/5 of usual speed) when going around corners or moving from one room to another. Scanning on stairs. 4.It is strongly recommended to NOT rotate the laser scanner. If have to, turn around your body instead of scanner itself very slowly (rotation speed <...

  • Page 33: Suitable Environments For Libackpack

    Round Trips on the Same Route Example Route planning for a 30*30m forest site. Plan for routes so that all useful information is captured by the acquisition with minimal redundancy. For a plot of 30m by 30m, use the route plan on the left for dense vegetation, or the one on the right for sparse vegetation.
  • Page 34 Office Building Underground Garage...
  • Page 35 Forest Land...
  • Page 36 Sand Barge Construction Site...
  • Page 37 Building Foundation Pipelines...

  • Page 38: Less Suitable Environments For Libackpack

    Power Line Corridor 6.4 Less suitable environments for LiBackpack Environments with insufficient features are not suitable for LiBackpack scanning, including but not limited to: Grassland, snowfield, barren lands, etc. Environments with Insufficient Features Narrow roads, stairwells, and other tight spaces.

  • Page 39: Other Guidelines

    Tight Spaces Surfaces with very strong reflectance such as painted glasses. Surfaces with strong geomagnetic interference. 6.5 Other Guidelines 1. Avoid scanning when there are too many moving objects. 2. When scanning large areas, raise the scanner above the operator’s head to give the scanner a 360-degree view. 3.

  • Page 40: Faq

    Is there a limit on the time duration for data collection? The recommended time duration for a single collection project is 30 minutes. While working, LiBackpack C50 produces raw data at a rate of roughly 10M/s. Longer data collection time may result in large data file size, which might slow down the system’s data copying and processing speeds.
  • Page 41 If the device used is an Android device, please follow these steps to reset and reconnect to the LiBackpack Wi-Fi (Settings->System- >Reset->Network settings reset; steps may vary with make and model): What should I do when ‘Unable to connect’ popup appears during data collection? The appearance of this popup is most likely to be caused by Wi-Fi interference.
  • Page 42 Closed-loop scanning refers to walk through the route with closed loops while collecting data with LiBackpack C50. Currently, LiBackpack C50 performs real-time processing and closed-loop optimization. However, because of environmental factors, the closed loops may not be detected automatically in certain scenarios.
  • Page 43 Can I align multiple point cloud datasets or georeference them? It is recommended that specialized referencing targets are used as control points to align multiple point cloud datasets or to georeference a single point cloud during post processing. Referencing targets should be placed over datum monuments when the goal is to use them to georeference LiBackpack point clouds.
  • Page 44 It is possible to hot swap the drive if data copying is not in progress. DO NOT unplug the drive if data copying is in progress. Wait until the process is completed and a notice to unplug the drive is displayed. Why can I not copy a file larger than 4 GB to my USB drive from LiBackpack? Please ensure that the USB flash drive is in the NTFS or exFAT format.

  • Page 45: Appendix

    8. Appendix LiBackpack Sample Data: Indoor scenes (hotel, conference room, office, and auditorium), parking lot, underground parking garage, office buildings, forestland, sand barge, construction site, pipelines, and powerlines. All data are displayed in LiDAR360, GVI’s all-in-one software that provides comprehensive LiDAR solutions.
  • Page 46 Conference Room Office...
  • Page 47 Auditorium Parking Lot and Underground Parking Garage...
  • Page 48 Parking Lot and Underground Parking Garage Office Buildings...
  • Page 49 Forestland...
  • Page 50 Sand barge Construction site...
  • Page 51 Building Foundation Pipelines...
  • Page 52 Powerlines...

Table of Contents