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Velodyne LIDAR HDL-32E User Manual

Velodyne LIDAR HDL-32E
28 pages
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HDL-32E
High Definition LiDAR
Sensor
U
S E R S M A N U A L A N D
P R O G R A M M I N G G U I D E
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Velodyne LIDAR HDL-32E Specifications

General IconGeneral
Number of Lasers32
Field of View (Horizontal)360°
Accuracy± 2 cm
Angular Resolution (Horizontal)0.1° - 0.4°
Angular Resolution (Vertical)1.33°
Scan/Rotation Rate5 - 20 Hz
Operating Temperature-10°C to +60°C
Laser Wavelength905 nm
Ingress ProtectionIP67
Type3D LiDAR
RangeUp to 100 meters

Summary

Important Safety Instructions

Read Instructions

All safety and operating instructions should be read before the product is operated.

Retain Instructions

The safety and operating instructions should be retained for future reference.

Heed Warnings

All warnings on the product and in the operating instructions should be adhered to.

Follow Instructions

All operating and use instructions should be followed.

Servicing

User should not attempt to service the product beyond what is described in the operating instructions.

Introduction

Principles of Operation

Setup

Case Contents

Details the items included in the shipping case for the HDL-32E sensor unit.

Mount Base

Describes how to mount the HDL-32E sensor using the provided mounting holes.

Connect Power and Computer

Instructions for connecting the HDL-32E sensor to power and a computer.

Wiring and Connections

Details the Ethernet, Power, and GPS connections for the HDL-32E sensor.

Usage

Establish Communication

How to connect and communicate with the HDL-32E sensor via Ethernet.

Calibration Table Creation

Creating an internal calibration table from the db.xml file for data processing.

Packet Parsing

Parsing HDL-32E packets for rotation, distance, and intensity data.

Apply Calibration Factors

Applying vertical correction factors to sensor data for 3D point location.

Plot or Store Data

Methods for plotting or storing HDL-32E data, including GPS synchronization.

External GPS Time Synchronization

Synchronizing HDL-32E data with GPS time pulses for precise firing time.

GPS Equipment Overview

Visual guide to the GPS receiver and interface box included with the HDL-32E.

Packet Format and GPS Time Stamping

Format of HDL-32E data packets and status bytes for GPS time stamping.

Time Stamping Accuracy Rules

Accuracy rules and conditions for GPS time stamping with the HDL-32E.

Laser Timing

Details on laser firing timing and synchronization with GPS signals.

Laser Firing Sequence

Describes the laser firing order and vertical angles for the HDL-32E sensor.

Troubleshooting

Service and Maintenance

Specifications

Laser Specifications

Details on the laser type, wavelength, and measurement range.

Sensor Specifications

Specifications for the HDL-32E sensor, including FOV, temperature, and accuracy.

Mechanical and Output Specifications

Mechanical properties like power, weight, shock resistance, and output data formats.

Dimensions and Shipping

Physical dimensions and approximate shipping weight of the HDL-32E unit.

Appendix A: Digital Sensor Recorder (DSR)

DSR Software Overview

Introduction to the DSR software for 3D point cloud visualization and recording.

DSR Installation

Steps to install the DSR software on a computer.

DSR Calibration and Live Playback

How to calibrate and perform live playback using the DSR software.

DSR Data Recording

Instructions for recording data using the DSR software.

DSR Recorded File Playback

How to play back recorded pcap files using the DSR software.

DSR Keyboard Controls

List of keyboard shortcuts for controlling the DSR software.

DSR Mouse Controls

List of mouse actions for controlling the DSR software.

Appendix B: HDL-32E Sample Data Packets

Data Packet Format

Details the structure of HDL-32E UDP Ethernet packets, including data and positioning packets.

Positioning Packet Details

Explains the positioning Ethernet packet providing motion data from accelerometers and gyros.

Time Stamp Format

Details the format of the 4-byte GPS timestamp in HDL-32E packets.

NMEA Sentence Structure

Explains the structure and fields of the NMEA $GPRMC sentence used for GPS data.

Ethernet Packet Example Capture

Example capture of HDL-32E Ethernet packets using Wireshark.

Appendix C: Coordinate Calculation Algorithm

Sample Code Explanation

Provides sample C++ code for calculating 3D coordinates from HDL-32E data.

Appendix D: Calibration and Orientation

Calibration and Orientation Overview

Discusses axes of variation and factory calibration for the HDL-32E.

Laser Spot Size and Distance Calibration

Details laser spot size characteristics and distance calibration methods.

Appendix E: Ethernet Transit Timing Table

Timing Table and Notes

Provides a table of packet offsets and notes for calculating actual laser firing times.

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