1、move_base.launch

<launch>

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

</launch>

1. base_local_planner_params.yaml

controller_frequency: 3.0
recovery_behavior_enabled: false
clearing_rotation_allowed: false

TrajectoryPlannerROS:
max_vel_x: 0.5
min_vel_x: 0.1
max_vel_y: 0.0 # zero for a differential drive robot
min_vel_y: 0.0
max_vel_theta: 1.0
min_vel_theta: -1.0
min_in_place_vel_theta: 0.5
escape_vel: -0.1
acc_lim_x: 1.5
acc_lim_y: 0.0 # zero for a differential drive robot
acc_lim_theta: 1.2

holonomic_robot: false
yaw_goal_tolerance: 0.1 # about 6 degrees
xy_goal_tolerance: 0.1 # 10 cm
latch_xy_goal_tolerance: false
pdist_scale: 0.9
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

2.costmap_common_params.yaml

obstacle_range: 2.5
raytrace_range: 3.0
footprint: [[0.175, 0.175], [0.175, -0.175], [-0.175, -0.175], [-0.175, 0.175]]
footprint_inflation: 0.01
robot_radius: 0.175
inflation_radius: 0.15
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}

3.global_costmap_params.yaml

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

 4.local_costmap_params.yaml

local_costmap:
global_frame: odom
robot_base_frame: base_footprint
update_frequency: 3.0
publish_frequency: 1.0
static_map: true
rolling_window: false
width: 6.0
height: 6.0
resolution: 0.01
transform_tolerance: 1.0