Robosense速腾激光雷达如何使用多雷达

1 简介

本文将展示如何在仅运行一个驱动程序的情况解析并发送多台雷达的点云。理论上，一个驱动可以同时解码无限数量的雷达。为了方便起见，本文将会使用三个雷达作为示例。

2 在线解析多雷达

2.1 获取数据端口号

首先将三个雷达与计算机正确连接，此时应已知每个LiDAR的msop端口号与 difop端口号。如果不清楚上述内容，请查看雷达用户手册。

2.2 设置参数文件的common部分

common:msg_source: 1                                       send_packet_ros: false                                send_point_cloud_ros: true                            send_packet_proto: false                              send_point_cloud_proto: false                         pcap_path: /home/robosense/lidar.pcap

由于消息来源于在线雷达，因此请设置msg_source=1。

将点云发送到ROS以查看，因此设置 send_point_cloud_ros = true 。

2.3 设置配置文件中的lidar部分

lidar:- driver:lidar_type: RS128           frame_id: /rslidar           msop_port: 6699             difop_port: 7788            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /middle/rslidar_packets    ros_send_packet_topic: /middle/rslidar_packets    ros_send_point_cloud_topic: /middle/rslidar_points      proto:point_cloud_recv_port: 60021                     point_cloud_send_port: 60021                     msop_recv_port: 60022                       msop_send_port: 60022                       difop_recv_port: 60023                      difop_send_port: 60023       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1    - driver:lidar_type: RSBP           frame_id: /rslidar           msop_port: 1990             difop_port: 1991            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /left/rslidar_packets    ros_send_packet_topic: /left/rslidar_packets    ros_send_point_cloud_topic: /left/rslidar_points      proto:point_cloud_recv_port: 60024                     point_cloud_send_port: 60024                     msop_recv_port: 60025                       msop_send_port: 60025                       difop_recv_port: 60026                      difop_send_port: 60026       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1   - driver:lidar_type: RSBP           frame_id: /rslidar           msop_port: 2010             difop_port: 2011            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /right/rslidar_packets    ros_send_packet_topic: /right/rslidar_packets    ros_send_point_cloud_topic: /right/rslidar_points      proto:point_cloud_recv_port: 60027                     point_cloud_send_port: 60027                     msop_recv_port: 60028                       msop_send_port: 60028                       difop_recv_port: 60029                      difop_send_port: 60029       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1

为每个雷达类型设置型号lidar_type。

为每个雷达设置对应的端口号 msop_port 和difop_port 。

为每个雷达设置点云发送的话题ros_send_point_cloud_topic。

3 离线解析多雷达rosbag

3.1 设置配置文件中的common部分

common:msg_source: 2                                       send_packet_ros: false                                send_point_cloud_ros: true                            send_packet_proto: false                              send_point_cloud_proto: false                         pcap_path: /home/robosense/lidar.pcap

由于数据包消息来自ROS，因此设置 msg_source = 2 。

将点云发送到ROS，因此设置 send_point_cloud_ros = true。

3.2 设置配置文件中的lidar部分

lidar:- driver:lidar_type: RS128           frame_id: /rslidar           msop_port: 6699             difop_port: 7788            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /middle/rslidar_packets    ros_send_packet_topic: /middle/rslidar_packets    ros_send_point_cloud_topic: /middle/rslidar_points      proto:point_cloud_recv_port: 60021                     point_cloud_send_port: 60021                     msop_recv_port: 60022                       msop_send_port: 60022                       difop_recv_port: 60023                      difop_send_port: 60023       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1    - driver:lidar_type: RSBP           frame_id: /rslidar           msop_port: 1990             difop_port: 1991            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /left/rslidar_packets    ros_send_packet_topic: /left/rslidar_packets    ros_send_point_cloud_topic: /left/rslidar_points      proto:point_cloud_recv_port: 60024                     point_cloud_send_port: 60024                     msop_recv_port: 60025                       msop_send_port: 60025                       difop_recv_port: 60026                      difop_send_port: 60026       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1   - driver:lidar_type: RSBP           frame_id: /rslidar           msop_port: 2010             difop_port: 2011            start_angle: 0              end_angle: 360               min_distance: 0.2            max_distance: 200            use_lidar_clock: false        ros:ros_recv_packet_topic: /right/rslidar_packets    ros_send_packet_topic: /right/rslidar_packets    ros_send_point_cloud_topic: /right/rslidar_points      proto:point_cloud_recv_port: 60027                     point_cloud_send_port: 60027                     msop_recv_port: 60028                       msop_send_port: 60028                       difop_recv_port: 60029                      difop_send_port: 60029       point_cloud_send_ip: 127.0.0.1                   packet_send_ip: 127.0.0.1

为每个雷达类型设置型号lidar_type。

为每个雷达设置接收的packet话题名ros_recv_packet_topic。

为每个雷达设置点云发送的话题ros_send_point_cloud_topic。