movebase导航

于 2016-11-06 21:22:00 发布
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文章标签： 移动开发
原文链接：http://www.cnblogs.com/CZM-/p/6036445.html
本文详细介绍了TurtleBot的导航配置与调整过程，包括速度与加速度限制的设置，以及如何通过安装和配置Yocs Velocity Smoother包来改善速度控制。此外，还提供了完整的启动文件和参数配置示例，涵盖了从激光雷达数据处理到地图创建，再到AMCL定位与Move Base导航的全过程。

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利用turtlebot 的导航配置文件

由于movbase发的速度太不友好了所以使用了ros自带的滤波安装相应的包

apt-get install ros-indigo-yocs-velocity-smoother

我的配置文件 standalone.yaml

# Example configuration:
# - velocity limits are around a 10% above the physical limits
# - acceleration limits are just low enough to avoid jerking

# Mandatory parameters
speed_lim_v: 0.8
speed_lim_w: 5.4

accel_lim_v: 0.3
accel_lim_w: 3.5

# Optional parameters
frequency: 20.0
decel_factor: 1.0

# Robot velocity feedback type:
#  0 - none
#  1 - odometry
#  2 - end robot commands
robot_feedback: 2

 我机器人的启动文件

<launch>
    
    <param name="use_sim_time" value="false" />
    
    <node name="link_laser" pkg="tf" type="static_transform_publisher" args="0.15 0 0.15 0 0 0 base_link laser 50"/> 
    <node name="link_footprint" pkg="tf" type="static_transform_publisher" args="0 0 0 0 0 0 base_link base_footprint 50"/>

    <node pkg="odom_tf_package" type="base_controller" name="serial_send_recevice" output="screen"/>

    <include file="$(find odom_tf_package)/launch/include/rplidar.launch" />
  
  

  <arg name="node_name"             value="velocity_smoother"/>
  <arg name="nodelet_manager_name"  value="nodelet_manager"/>
  <arg name="config_file"           value="$(find odom_tf_package)/config/standalone.yaml"/>
  <arg name="raw_cmd_vel_topic"     value="cmd_vel"/>
  <arg name="smooth_cmd_vel_topic"  value="smoother_cmd_vel"/>
  <arg name="robot_cmd_vel_topic"   value="robot_cmd_vel"/>
  <arg name="odom_topic"            value="odom"/>
  
  <!-- nodelet manager -->
  <node pkg="nodelet" type="nodelet" name="$(arg nodelet_manager_name)" args="manager"/>
  
    
  <!-- velocity smoother -->
  <include file="$(find yocs_velocity_smoother)/launch/velocity_smoother.launch">
    <arg name="node_name"             value="$(arg node_name)"/>
    <arg name="nodelet_manager_name"  value="$(arg nodelet_manager_name)"/>
    <arg name="config_file"           value="$(arg config_file)"/>
    <arg name="raw_cmd_vel_topic"     value="$(arg raw_cmd_vel_topic)"/>
    <arg name="smooth_cmd_vel_topic"  value="$(arg smooth_cmd_vel_topic)"/>
    <arg name="robot_cmd_vel_topic"   value="$(arg robot_cmd_vel_topic)"/>
    <arg name="odom_topic"            value="$(arg odom_topic)"/>
  </include>


</launch>

 建图的启动文件：gmapping.launch

<launch>

  <arg name="scan_topic" default="scan" />  //laser的topic名称，与自己的激光的topic相对应
   <param name="odom_frame" value="odom"/>  //世界坐标
  <node pkg="gmapping" type="slam_gmapping" name="slam_gmapping" output="screen" clear_params="true">   //启动slam的节点

    <param name="map_update_interval" value="2.0"/>
    <!-- Set maxUrange < actual maximum range of the Laser -->
    <param name="maxRange" value="5.0"/>
    <param name="maxUrange" value="4.5"/>
    <param name="sigma" value="0.05"/>
    <param name="kernelSize" value="1"/>
    <param name="lstep" value="0.05"/>  //optimize机器人移动的初始值（距离）
    <param name="astep" value="0.05"/>  //optimize机器人移动的初始值（角度）
    <param name="iterations" value="5"/>    //icp的迭代次数
    <param name="lsigma" value="0.075"/>
    <param name="ogain" value="3.0"/>
    <param name="lskip" value="0"/> //为0,表示所有的激光都处理，尽可能为零，如果计算压力过大，可以改成1

    <param name="srr" value="0.01"/>    //以下四个参数是运动模型的噪声参数
    <param name="srt" value="0.02"/>
    <param name="str" value="0.01"/>
    <param name="stt" value="0.02"/>
    <param name="linearUpdate" value="0.5"/>    //机器人移动linearUpdate距离，进行scanmatch
    <param name="angularUpdate" value="0.5"/>   //机器人选装angularUpdate角度，进行scanmatch
    <param name="temporalUpdate" value="-1.0"/>
    <param name="resampleThreshold" value="0.5"/>
    <param name="particles" value="80"/>        //很重要，粒子个数

<!--
    <param name="xmin" value="-50.0"/>
    <param name="ymin" value="-50.0"/>
    <param name="xmax" value="50.0"/>
    <param name="ymax" value="50.0"/>
  make the starting size small for the benefit of the Android client's memory...
  -->
    <param name="xmin" value="-1.0"/>   //map初始化的大小
    <param name="ymin" value="-1.0"/>
    <param name="xmax" value="1.0"/>
    <param name="ymax" value="1.0"/>

    <param name="delta" value="0.05"/>
    <param name="llsamplerange" value="0.01"/>
    <param name="llsamplestep" value="0.01"/>
    <param name="lasamplerange" value="0.005"/>
    <param name="lasamplestep" value="0.005"/>
    <remap from="scan" to="$(arg scan_topic)"/>
  </node>
</launch>

导航启动文件：tb_demo_amcl.launch

<launch>

  <param name="use_sim_time" value="false" />
  
  <!-- EDIT THIS LINE TO REFLECT THE NAME OF YOUR OWN MAP FILE 
       Can also be overridden on the command line -->
  <arg name="map" default="map.yaml" />

  <!-- Run the map server with the desired map -->
  <node name="map_server" pkg="map_server" type="map_server" args="$(find navigation_tutorials)/maps/$(arg map)"/>

  <!-- Start move_base  -->
  <include file="$(find navigation_tutorials)/launch/tb_move_base.launch" />

  <!-- Fire up AMCL -->
  <include file="$(find navigation_tutorials)/launch/tb_amcl.launch" />
  
</launch>

 tb_move_base.launch

<launch>

  <node pkg="move_base" type="move_base" respawn="false" name="move_base" output="screen" clear_params="true">
    <rosparam file="$(find rbx1_nav)/config/turtlebot/costmap_common_params.yaml" command="load" ns="global_costmap" />
    <rosparam file="$(find rbx1_nav)/config/turtlebot/costmap_common_params.yaml" command="load" ns="local_costmap" />
    <rosparam file="$(find rbx1_nav)/config/turtlebot/local_costmap_params.yaml" command="load" />
    <rosparam file="$(find rbx1_nav)/config/turtlebot/global_costmap_params.yaml" command="load" />
    <rosparam file="$(find rbx1_nav)/config/turtlebot/base_local_planner_params.yaml" command="load" />
  </node>
  
</launch>

 tb_amcl.launch

<launch>

  <arg name="use_map_topic" default="false"/>
  <arg name="scan_topic" default="scan"/>

  <node pkg="amcl" type="amcl" name="amcl" clear_params="true">
    <param name="use_map_topic" value="$(arg use_map_topic)"/>
    <!-- Publish scans from best pose at a max of 10 Hz -->
    <param name="odom_model_type" value="diff"/>
    <param name="odom_alpha5" value="0.1"/>
    <param name="gui_publish_rate" value="10.0"/>
    <param name="laser_max_beams" value="60"/>
    <param name="laser_max_range" value="12.0"/>
    <param name="min_particles" value="500"/>
    <param name="max_particles" value="2000"/>
    <param name="kld_err" value="0.05"/>
    <param name="kld_z" value="0.99"/>
    <param name="odom_alpha1" value="0.2"/>
    <param name="odom_alpha2" value="0.2"/>
    <!-- translation std dev, m -->
    <param name="odom_alpha3" value="0.2"/>
    <param name="odom_alpha4" value="0.2"/>
    <param name="laser_z_hit" value="0.5"/>
    <param name="laser_z_short" value="0.05"/>
    <param name="laser_z_max" value="0.05"/>
    <param name="laser_z_rand" value="0.5"/>
    <param name="laser_sigma_hit" value="0.2"/>
    <param name="laser_lambda_short" value="0.1"/>
    <param name="laser_model_type" value="likelihood_field"/>
    <!-- <param name="laser_model_type" value="beam"/> -->
    <param name="laser_likelihood_max_dist" value="2.0"/>
    <param name="update_min_d" value="0.25"/>
    <param name="update_min_a" value="0.2"/>
    <param name="odom_frame_id" value="odom"/>
    <param name="resample_interval" value="1"/>
    <!-- Increase tolerance because the computer can get quite busy -->
    <param name="transform_tolerance" value="1.0"/>
    <param name="recovery_alpha_slow" value="0.0"/>
    <param name="recovery_alpha_fast" value="0.0"/>
    <remap from="scan" to="$(arg scan_topic)"/>
  </node>
</launch>

 base_local_planner_params.yaml

controller_frequency: 3.0
recovery_behavior_enabled: false
clearing_rotation_allowed: false

TrajectoryPlannerROS:
   max_vel_x: 0.3
   min_vel_x: 0.05
   max_vel_y: 0.0  # zero for a differential drive robot
   min_vel_y: 0.0
   min_in_place_vel_theta: 0.5
   escape_vel: -0.1
   acc_lim_x: 2.5
   acc_lim_y: 0.0 # zero for a differential drive robot
   acc_lim_theta: 3.2

   holonomic_robot: false
   yaw_goal_tolerance: 0.1 # about 6 degrees
   xy_goal_tolerance: 0.15  # 10 cm
   latch_xy_goal_tolerance: false
   pdist_scale: 0.8
   gdist_scale: 0.6
   meter_scoring: true

   heading_lookahead: 0.325
   heading_scoring: false
   heading_scoring_timestep: 0.8
   occdist_scale: 0.1
   oscillation_reset_dist: 0.05
   publish_cost_grid_pc: false
   prune_plan: true

   sim_time: 1.0
   sim_granularity: 0.025
   angular_sim_granularity: 0.025
   vx_samples: 8
   vy_samples: 0 # zero for a differential drive robot
   vtheta_samples: 20
   dwa: true
   simple_attractor: false

costmap_common_params.yaml

obstacle_range: 2.5
raytrace_range: 3.0
robot_radius: 0.165
inflation_radius: 0.3
max_obstacle_height: 0.6
min_obstacle_height: 0.0
observation_sources: scan
scan: {data_type: LaserScan, topic: /scan, marking: true, clearing: true, expected_update_rate: 0}

global_costmap_params.yaml

global_costmap:
   global_frame: /map
   robot_base_frame: /base_footprint
   update_frequency: 1.0
   publish_frequency: 0
   static_map: true
   rolling_window: false
   resolution: 0.01
   transform_tolerance: 1.0
   map_type: costmap

 local_costmap_params.yaml

local_costmap:
   global_frame: /odom
   robot_base_frame: /base_footprint
   update_frequency: 5.0
   publish_frequency: 1.0
   static_map: false
   rolling_window: true
   width: 6.0
   height: 6.0
   resolution: 0.01
   transform_tolerance: 1.0
   map_type: costmap

 把原先建好的图map.pgm  map.yaml 放在功能包/maps/下

roslaunch odom_tf_package  start.launch 　　　　　　　　机器人启动文件
roscat navigation_tutorials tb_demo_amcl.launch 　　　导航文件
roslaunch navigation_tutorials rviz.launc            rviz启动文件

 

转载于:https://www.cnblogs.com/CZM-/p/6036445.html

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