Phoenix LiDAR Systems User Manual
  • Welcome
  • SpatialExplorer 8 & 9
    • Introduction
    • Installation
      • System Requirements
      • SpatialExplorer-Compatibility
      • Licensing
      • Change Log
    • User Interface
      • Windows
        • AGL Oracle
        • Classify On Selection
        • Coordinate Reference System
        • Corrections
        • Main View
        • Picks
        • Messages
        • Mission Guidance
        • Photo Viewer
        • Project
          • Rover
            • Cameras
              • Camera Acquisition Settings
              • Camera Calibration Settings
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              • Camera Tools
                • Load sensor transform/extrinsics from file
                • Calibrate Sensor Manually
                • Edit Receptor Masks
            • IMU
            • GNSS
            • Lidars
              • Lidar Acquisition Settings
              • Lidar Calibration Settings
              • Lidar Processing Settings
              • Lidar Tools
                • Load sensor transform/extrinsics from file
          • Reference Stations
          • Flightplans
          • Geometry
            • Modifying Geometries
          • Grid
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          • Images
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        • Project Player
        • Sensors
        • SLAM
          • SLAM Processing Profile
        • System Monitor
      • Toolbars
        • File
        • View
        • Selection
          • Cloud Script Tool
        • Workflow
          • NavLab Embedded
            • Processing Options
            • Estimating Primary Antenna Lever Arm
          • Create Intervals
          • Disambiguate Lidar Ranging
          • Create Cloud
          • LiDARSnap
            • Sensor Calibration
            • Trajectory Optimization
              • Aerial Trajectory Optimization
              • Mobile Trajectory Optimization
            • Ground Control with LiDARSnap
              • Vertical Only Adjustment
              • Full Adjustment
            • LiDARSnap Tuning and Parameters
            • Control Point Clouds
            • Example: Optimizing Data from Multiple Scans
          • CameraSnap
            • Auto-detect without review
            • Auto-detect with manual review
            • Manually-Created Matches
            • CameraSnap Reports
          • Colorize Cloud
          • Align to GCPs
            • Adjusting Automatically to GCPs (Vertical Only)
            • Manual Adjustment (Horizontal and Vertical)
          • Reports
          • Export
        • Analytics
          • Classify
            • Classify By Class
            • Classify Noise
            • Classify Statistical Outliers
            • Classify Ground
            • Classify Powerlines
            • Classify Moving Objects
          • Create
            • Create Maps
            • Create Floorplans
            • Create Contours
            • Create Mesh
            • Compute Normals
            • CloudClean
            • Resample Cloud (Delaunay)
          • Calculate Distance
          • Measure
            • Std. Dev. Along Surface Normal
            • Surface Area and Point Density
            • Volume
          • Compute SOCS
        • LiDARMill
          • Positions
          • Manage Grids
          • View GNSS Antennas
        • Rover
          • Connect to Rover
          • Disconnect from Rover
          • Rover Settings and Profiles
            • Navigation System
            • Sensors
            • Camera Settings
            • LiDAR Settings
          • Shutdown Rover
        • Tools
          • Navigation
            • Plot Trajectories
          • Camera
            • Edit Camera Events
            • Create Camera Sessions from Data
          • Licensing
          • Create Transformation...
    • Workflows
      • Data Processing Workflows
        • Airborne Lidar Processing
        • Mobile Lidar Processing
        • Backpack and Pedestrian Lidar Processing
        • SLAM Lidar Processing
        • LAZ Processing
        • Field Data Check
    • FAQs
  • LiDARMill Cloud
    • Introduction
    • Login/Register
      • User management
    • Quick Start Guide
    • Overview
    • Post Processing Workflow
      • Create New Project
        • Details
        • Project Reference Setup
        • Summary
      • Create New Mission
        • Uploading a SpatialExplorer Mission
        • Uploading a RECON Mission
        • Uploading a Pointcloud Processing Mission
      • Adding Reference Station Data
      • Adding Ground Control Points and Polygons
        • Ground Control Points (GCPs)
        • Polygons
      • Processing Tools
        • NavLab Pipeline
        • Spatial Fuser Pipeline
        • Pointcloud Optimization Pipeline
      • Cloud Viewer
      • Additional Tabs
    • FAQs
  • FlightPlanner
    • Introduction
    • User Interface
      • FlightPlanner Interface Tools
        • Change Theme
        • Feedback, Help, and Changelog
        • Flight Info
        • Delete All
        • Measurement and Reset View
        • Upload Google KMZ file and Delete All KMLs
        • Take off Location
        • Reverse Waypoint Order, Undo, and Auto Update mission flightlines on setting change
        • Address Search
    • Workflow
      • Missions Library
      • Basic UAS LiDAR Mission Planning (FP 9.0)
      • Mission Type
    • Overlap
    • FAQs
  • Hardware and Interfaces
    • Warnings and Safety Notices
      • LiPo Battery Safety
        • General Guidelines and Warnings
        • Pre-Charging Guidelines
        • Charging Process Guidelines
        • Storage/Transportation Guidelines
        • Battery Care Guidelines
      • Laser Safety
        • Class 1 Lasers
        • VUX-240 Laser Safety
      • Aircraft/Rover Operational Safety
    • Connecting and Interfacing with Phoenix Lidar Systems
      • Connect via Rover's Web Interface
      • Connecting via SpatialExplorer
        • Base Station (Notebook) Setup
          • Configure Windows
            • Disable Automatic Updates
            • Change Active Hours
            • Install Latest NVIDIA Drivers
          • Modify Hosts File
          • Wired Ethernet Network Card Setup
          • Install Software Tools
            • 7-Zip
            • Filezilla
            • Teamviewer
            • PuTTY
            • NovAtel Connect and NovAtel Convert4
        • Connect to Rover
          • Connect to Rover as a UDP Client
            • Connect via Wi-Fi
            • Connect via Ethernet
              • Connect via 900 MHz Radio
            • Connect Via Ground-Station-Wi-Fi (Groove)
              • Connect via Ground Station Wi-Fi (Bullet M5)
          • Connect to Rover using a Serial Port
          • Connect to Rover via Connection Service
            • Connect via Cellular
        • User Interface
          • Settings
            • Rover Settings
              • General
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          • System Monitor
          • Sensors
          • Satellites
      • Downloading Rover Data
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    • NavBox
      • FLEXPack
        • Specifications
        • Ports and User Elements
        • Status LED
        • Using the CPU button
        • Preparing the System
        • Recording Data
        • Questions & Troubleshooting
      • Air
        • Specifications
        • Ports and User Elements
        • Status LED
        • Using the CPU Button
        • Preparing the System
        • Recording Data
        • Questions & Troubleshooting
      • Scout
        • Specifications
        • Ports and User Elements
        • Using the CPU/Sensor Button
        • Preparing the System
        • Recording Data
        • Questions & Troubleshooting
      • RECON Series
      • Alpha 3
        • Ports and User Elements
        • IMU-32/IMU-33/IMU-34
        • IMU-41/IMU-52
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    • Camera
      • Sony Mirrorless Cameras
        • Specifications
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        • A7R4 Warning Messages
      • A7R4-Lite
        • Sony A7R4-Lite SD card folder setup procedure
      • A6K-Lite Camera
        • Highlights
        • Specifications
        • Warnings
        • Ports and User Elements
        • Status & Activity LED
        • Settings Wheel
        • Mounting
        • Powering ON the Camera - Self-Check
        • Operating with Spatial Explorer
          • Changing the Trigger Interval / Distance
          • Initial Camera Setup
          • Dual A6K-Lite Setup
        • Changing Camera Settings
        • Troubleshooting
      • Ladybug5+ and LadybugCapPro
        • Pre-Procedure
        • Data Acquisition
    • Lidars
      • Real-Time Point Clouds and MTA Disambiguation
    • Inertial Navigation System
      • Orientation and Offsets
        • IMU
        • GNSS Antennas
        • LiDARs and Cameras
      • Wheel Sensor
    • Miscellaneous Hardware
      • Mobile Roof Rack
        • RFM2-Dual LiDAR Mobile Accessory
      • Backpack Lidar Mount
        • Backpack Telescoping Boom
      • Wi-Fi Range Extenders
      • Accessories
        • Cables
          • SMB to SMA GPS Antenna Cable
          • MCX to RP-SMA WiFi Antenna Cable
          • LiDAR / Camera Cable
          • micro USB to USB Type A Female Cable
          • RJ45 Ethernet Cable
          • HDMI Cable Type D to Type A
          • SMA to TNC Ground Mount GNSS Antenna Cable
          • 7.5” Rover GPS Antenna Cable
          • 24” Rover GPS Antenna Cable
        • Power Supply Parts
          • Power Splitter Cable
          • AC Power Supply
          • XT30 3" Extension Cable
          • XT60 Female to XT30 Male Adapter
          • XT60 Male to XT30 Female Adapter
          • XT60 Female to EC5 Male
          • XT60 Extension Cable
        • Antennas
          • Rover GNSS Antenna
          • UHF Rubber Duck Antenna
          • Ground Mount GNSS Antenna
          • Bullet Long Range Module
          • Omni 12dBi Antenna for Bullet Module
          • Rover 5.8 GHz Wi-Fi Antenna RP-SMA
        • Other Components
          • LiDAR/IMU Cable
          • LiDAR Cable
          • IMU Cable
          • AL3 Power Cable with Integrated Splitter
          • EC5 to XT60 Adapter Cable
          • LiPo with EC5 Connector
          • LiPo Charger
          • 5.8 GHz Directional Panel Antenna
          • TNC 90 Degree Adapter
        • Miscellaneous
          • USB Drive
          • USB to Ethernet Adapter
          • Suction Cups w/ Clamps
          • Multi-Tool
          • SMA Wi-Fi Terminator
          • LiDAR Sensor Cover
          • LiPo Guard Battery Bag
          • Cable Accessories Bag
          • Storm Case
          • Foam Divider
  • Data Acquisition and UAV Piloting
    • Flight Planning
      • UAS LiDAR Hot Swapping
    • UAV Data Acquisition
    • Mobile Acquisition
    • Backpack Acquisition
      • Ranger FLEX Initialization and Acquisition Workflow
      • Recon XT Initialization and Acquisition Workflow
    • SLAM Acquisition
    • Navigation System Configuration
      • Navigation System Basics
      • Real-Time and Post-Processing Differences
      • Further Reading
        • GPS Time Status
        • Navigation Procedures
        • IMU Alignment
        • Navigation System Stabilization
    • RECON UAV Acquisition
    • RECON Series Quick Start Guides
      • RECON-XT M300/M350
      • RECON-XT-A FreeFly Astro
      • RECON-A
    • Calibration Flight Strategy
    • Acquisition FAQs
    • Post Acquisition Checks
  • MissionGuidance
    • Introduction
    • Flightplans
    • Heightmaps
    • Setup
    • Operations
  • GNSS Hardware and Ground Control
    • Reference Stations
    • Downloading Reference Station Data
    • Ground Control - Best Practices
    • Stonex S-900 and Cube-A
      • Cube-A project set up
      • Configure base station
        • Configuring Harxon HX-DU8608D radio
      • Configure rover
      • Surveying ground control points
      • Post processing
        • Post processing base station observations
        • Change base coordinates to a post processed position
        • Export points from Cube-A
  • Reports
    • Processing Report
    • Project Report
    • Trajectory Report
  • 3rd Party Software Documentation
    • Bathymetric LiDAR Processing in RiProcess
      • Creating a Project in RiProcess
        • Adding a Navigation Device
        • Adding a Trajectory
        • Adding a Scanner
        • Adding a Camera
        • Adding Control Objects
        • Processing Parameters
          • Exponential Decomposition
          • Page
        • Adding Records
      • Data Processing Wizard
      • Visualize Data
      • RiPrecision
      • RiHydro Workflow
    • RiParameter
    • TerraSolid and Spatix Install
    • Orthomosaic Production with Pix4D
    • InertialExplorer Desktop 8.70 - 8.90 Processing
    • Hyperspectral Data Processing
    • SDCImport Filter Options
      • MTA (Multiple Time Around)
      • Region of Interest
  • Image Processing using PhaseOne IXCapture
  • Converting HEIF and Raw Images to JPG using Sony's IEDT
  • General FAQ
    • Accuracy Standards & Quantification
      • Precision
      • Relative Accuracy
      • Absolute Accuracy
      • Further Considerations
    • Mapping Terms and Definitions
    • Abbreviations
    • Examples: How to ensure accurate Georeferencing of Trajectories and Pointclouds
      • Example 1: Static Datum
      • Example 2: Dynamic Datum
    • Clock bias adjustment
    • General FAQs
  • Legacy Documentation
    • Offsets, Rotations, and Reference Frames: SpatialExplorer Version 4-7
    • Legacy TerraSolid Documentation
    • Legacy SpatialExplorer Documentation
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  1. Data Acquisition and UAV Piloting
  2. Flight Planning

UAS LiDAR Hot Swapping

Hot Swapping Best Practices

PreviousFlight PlanningNextUAV Data Acquisition

Last updated 4 months ago

PLS does not recommend hot-swapping batteries as SOP for UAS LiDAR acquisition, but we still provide the user the option on most of our lidar systems. Attached to the Nav box is a power input connector that has a split connection. Typically the primary source of power will come from the aircraft itself and the LiDAR does not need a secondary battery to perform acquisition, but, during a hot swap you can use this second connection to provide temporary battery power to the system while the UASs batteries are being replaced. This will allow the LiDAR to continuously run, reducing the time it would take to get airborne again and return on acquisition.

If a client wants to incorporate hot swapping into their acquisition technique, This is PLSs official best-practices suggestions:

  • When performing the Hot-Swap, the aircraft should NOT be stationary on the ground for longer than 2 minutes, anything greater than 2 minutes could result in excessive MEMs IMU drift that will result in ambiguous trajectory results during post-processing. If static time exceeds 2 minutes, the LiDAR should be powered down to stop data collection and treat the previous data collection as one mission, and start a new mission for the remainder of the flight acquisition.

  • PLS recommends performing a kinematic alignment and figure-8 at the beginning and end of each flight during the hot swapping to ensure that each flight can be processed individually if the need arises. PLS also recommends separating the mission for a battery swap at the end or beginning of a flight line and avoid departing the trajectory in the middle of a flight line. If your flight does depart in the middle of a flight line, you should overlap your trajectories by at least 100 ft (30m) or restart the flightline from the beginning for an unbroken trajectory after battery swap.

  • Ensure you have compatible software for processing data individually (LiDARMill NavLab must be able to process the entire trajectory, as no splitting is possible).

  • Avoid obstructing the LiDAR GNSS antenna while swapping batteries. If it is impossible not to obstruct or move the GNSS receiver during the battery swap, the LiDAR should be powered down to stop data collection and treat the previous data collection as one mission, and start a new mission for the remainder of the flight acquisition.

  • Avoid moving the UAV unusually on the ground or in the air post hot-swap. The aircraft should be armed, climb vertically until clear of all objects and sent on mission. To make this process as seamless as possible, have the kinematic line begin and end at the takeoff location.

  • Ensure the back-up battery is installed prior to shutting down, turning on, or disconnecting the main batteries from the UAS. Once the aircraft is on and the back-up battery is no longer necessary remove it from the LiDAR.

Pros of using Hot-Swap technique:

  • Can save time if implemented properly

  • Can increase acquisition and processing efficiency if you can prevent drift

  • A more “automated” approach to LiDAR acquisition.

Cons of using Hot-Swap technique:

  • If not conducted properly can hurt the quality of the entire data set.

  • If an improper shutdown of the system occurs during the acquisition it could corrupt the entire data collection.

  • This type of acquisition method creates unnecessary stress during the acquisition process which could result in poor operational best-practices.

10 sec Kinematic & figure-8 before and after each flight