The cost map only shows a radius of 2.5 m from the MAP origin.

asked 2023-06-19 07:16:43 -0600

Hello. I am trying navigation using a drone (Ryze Tello), ORB-SLAM2, and Navigation2. However, I am in trouble because the cost map is displayed only within a radius of 2.5m from the MAP origin. I adjusted the parameters, but I don't understand the cause.

Video Link

I am using Ubuntu 20.04 and ROS Foxy

Nav2 params are:

bt_navigator:
  ros__parameters:
    use_sim_time: False
    global_frame: map           
    robot_base_frame: base_link   
    odom_topic: /odom        
    default_bt_xml_filename: "navigate_w_replanning_and_recovery.xml"
    plugin_lib_names:
    - nav2_compute_path_to_pose_action_bt_node
    - nav2_follow_path_action_bt_node
    - nav2_back_up_action_bt_node
    - nav2_spin_action_bt_node
    - nav2_wait_action_bt_node
    - nav2_clear_costmap_service_bt_node
    - nav2_is_stuck_condition_bt_node
    - nav2_goal_reached_condition_bt_node
    - nav2_goal_updated_condition_bt_node
    - nav2_initial_pose_received_condition_bt_node
    - nav2_reinitialize_global_localization_service_bt_node
    - nav2_rate_controller_bt_node
    - nav2_distance_controller_bt_node
    - nav2_speed_controller_bt_node
    - nav2_recovery_node_bt_node
    - nav2_pipeline_sequence_bt_node
    - nav2_round_robin_node_bt_node
    - nav2_transform_available_condition_bt_node
    - nav2_time_expired_condition_bt_node
    - nav2_distance_traveled_condition_bt_node

bt_navigator_rclcpp_node:
  ros__parameters:
    use_sim_time: False

controller_server:
  ros__parameters:
    use_sim_time: False
    controller_frequency: 10.0
    min_x_velocity_threshold: 0.001
    min_y_velocity_threshold: 0.5
    min_theta_velocity_threshold: 0.001
    progress_checker_plugin: "progress_checker"
    goal_checker_plugin: "goal_checker" 
    controller_plugins: ["FollowPath"]

    # Progress checker parameters
    progress_checker:
      plugin: "nav2_controller::SimpleProgressChecker"
      required_movement_radius: 0.05   
      movement_time_allowance: 15.0   
    # Goal checker parameters
    goal_checker:
      plugin: "nav2_controller::SimpleGoalChecker"
      xy_goal_tolerance: 0.25         
      yaw_goal_tolerance: 0.25        
      stateful: True                 

    # DWB parameters
    FollowPath:
      plugin: "dwb_core::DWBLocalPlanner"
      debug_trajectory_details: True     
      min_vel_x: 0.0
      min_vel_y: 0.0
      max_vel_x: 0.5
      max_vel_y: 0.3
      max_vel_theta: 0.1
      min_speed_xy: 0.0
      max_speed_xy: 0.3
      min_speed_theta: 0.0
      # Add high threshold velocity for turtlebot 3 issue.
      # https://github.com/ROBOTIS-GIT/turtlebot3_simulations/issues/75
      acc_lim_x: 2.5
      acc_lim_y: 2.5
      acc_lim_theta: 3.2
      decel_lim_x: -2.5
      decel_lim_y: -2.5
      decel_lim_theta: -3.2
      vx_samples: 20
      vy_samples: 0
      vtheta_samples: 40
      sim_time: 1.5
      linear_granularity: 0.05
      angular_granularity: 0.025
      transform_tolerance: 0.2
      xy_goal_tolerance: 0.05
      trans_stopped_velocity: 0.25
      short_circuit_trajectory_evaluation: True 
      stateful: True
      critics: ["RotateToGoal", "Oscillation", "BaseObstacle", "GoalAlign", "PathAlign", "PathDist", "GoalDist"]
      BaseObstacle.scale: 0.02
      PathAlign.scale: 32.0
      PathAlign.forward_point_distance: 0.1
      GoalAlign.scale: 24.0
      GoalAlign.forward_point_distance: 0.1
      PathDist.scale: 32.0
      GoalDist.scale: 24.0
      RotateToGoal.scale: 32.0
      RotateToGoal.slowing_factor: 5.0
      RotateToGoal.lookahead_time: -1.0

controller_server_rclcpp_node:
  ros__parameters:
    use_sim_time: False

local_costmap:
  local_costmap:
    ros__parameters:
      update_frequency: 5.0      
      publish_frequency: 2.0     
      global_frame: map          
      robot_base_frame: base_link
      use_sim_time: False
      rolling_window: true
      width: 3                  
      height: 3                 
      resolution: 0.005        
      robot_radius: 0.005      
      plugins: ["obstacle_layer", "voxel_layer", "inflation_layer"]
      inflation_layer:
        plugin: "nav2_costmap_2d::InflationLayer"
        inflation_radius: 0.005 
        cost_scaling_factor: 3.0
      obstacle_layer:
        plugin: "nav2_costmap_2d::ObstacleLayer"
        enabled: True
        observation_sources: scan
        scan:
          topic: /scan
          max_obstacle_height: 2.0
          clearing: True
          marking: True
          data_type: "LaserScan"
      voxel_layer:
        plugin: "nav2_costmap_2d::VoxelLayer"
        enabled: True
        publish_voxel_map: True
        origin_z: 0.0
        z_resolution: 0.05
        z_voxels: 16
        max_obstacle_height: 2.0
        mark_threshold: 0
        observation_sources: pointcloud
        pointcloud:
          topic: /orb_slam2_mono/map_points
          max_obstacle_height: 2.0
          clearing: True
          marking: True
          data_type: "PointCloud2"
      static_layer:
        map_subscribe_transient_local: True
      always_send_full_costmap: True
  local_costmap_client:
    ros__parameters:
      use_sim_time: False
  local_costmap_rclcpp_node:
    ros__parameters:
      use_sim_time: False

global_costmap:
  global_costmap:
    ros__parameters:
      update_frequency: 1.0
      publish_frequency: 1.0
      global_frame: map
      robot_base_frame: base_link
      use_sim_time: False
      robot_radius: 0.005
      resolution: 0.05

      plugins: ["static_layer", "obstacle_layer", "voxel_layer", "inflation_layer"]
      obstacle_layer:
        plugin: "nav2_costmap_2d::ObstacleLayer"
        enabled: True
        observation_sources: scan
        scan:
          topic: /scan
          max_obstacle_height: 2.0
          clearing: True
          marking: True
          data_type: "LaserScan"
      voxel_layer:
        plugin: "nav2_costmap_2d::VoxelLayer"
        enabled: True
        publish_voxel_map: True
        origin_z: 0.0
        z_resolution: 0.05
        z_voxels: 16
        max_obstacle_height: 2.0
        mark_threshold: 0
        observation_sources: pointcloud
        pointcloud:
          topic: /orb_slam2_mono/map_points
          max_obstacle_height: 2.0
          clearing: True
          marking: True
          data_type: "PointCloud2"
      static_layer:
        plugin: "nav2_costmap_2d::StaticLayer"
        map_subscribe_transient_local: True
      inflation_layer:
        plugin: "nav2_costmap_2d::InflationLayer"
        cost_scaling_factor: 10.0
        inflation_radius: 0 ...
(more)
edit retag flag offensive close merge delete

Comments

I was able to change the range of the cost map by changing the "obstacle_range" parameter as follows.

thank you.

    pointcloud:
      topic: /orb_slam2_mono/map_points
      max_obstacle_height: 2.0
      clearing: True
      marking: True
      data_type: "PointCloud2"
      obstacle_range: 7.5
karashi gravatar image karashi  ( 2023-06-21 04:50:39 -0600 )edit

I would like to know if anyone knows why the default is set to "obstacle_range: 2.5".

karashi gravatar image karashi  ( 2023-06-21 08:40:51 -0600 )edit