如何在gazebo中加载激光雷达传感器,gazebo 怎样直接获取传感器数据
时间: 2024-03-03 21:48:02 浏览: 101
Gazebo 仿真中给 PX4 无人机添加 Livox 激光雷达
要在Gazebo中加载激光雷达传感器,需要先在Robot URDF模型中定义传感器。在URDF文件中添加以下代码,以定义名为"my_laser"的激光雷达传感器:
```xml
<sensor name='my_laser' type='ray'>
<pose>0 0 0.1 0 0 0</pose>
<visualize>true</visualize>
<update_rate>10</update_rate>
<ray>
<scan>
<horizontal>
<samples>720</samples>
<resolution>1</resolution>
<min_angle>-1.5708</min_angle>
<max_angle>1.5708</max_angle>
</horizontal>
</scan>
<range>
<min>0.1</min>
<max>10.0</max>
<resolution>0.01</resolution>
</range>
<noise>
<type>gaussian</type>
<mean>0.0</mean>
<stddev>0.01</stddev>
</noise>
</ray>
</sensor>
```
然后,在launch文件中将该传感器添加到Gazebo模拟器中:
```xml
<robot name="my_robot">
<link name="base_link">
<visual>
...
</visual>
<collision>
...
</collision>
<inertial>
...
</inertial>
<sensor name='my_laser' type='ray'>
<pose>0 0 0.1 0 0 0</pose>
<visualize>true</visualize>
<update_rate>10</update_rate>
<ray>
<scan>
<horizontal>
<samples>720</samples>
<resolution>1</resolution>
<min_angle>-1.5708</min_angle>
<max_angle>1.5708</max_angle>
</horizontal>
</scan>
<range>
<min>0.1</min>
<max>10.0</max>
<resolution>0.01</resolution>
</range>
<noise>
<type>gaussian</type>
<mean>0.0</mean>
<stddev>0.01</stddev>
</noise>
</ray>
</sensor>
</link>
</robot>
```
要在Gazebo中直接获取传感器数据,可以使用ROS消息订阅器来获取传感器的数据。首先,需要在launch文件中启动ROS节点:
```xml
<node name="gazebo_ros_laser" pkg="gazebo_ros" type="gazebo_ros_laser" respawn="false" output="screen">
<remap from="/scan" to="/my_laser/scan"/>
</node>
```
然后,在ROS节点中创建一个ROS消息订阅器,以订阅激光雷达传感器的扫描数据:
```python
import rospy
from sensor_msgs.msg import LaserScan
def callback(data):
# Process laser scan data here
pass
rospy.init_node('laser_scan_subscriber')
rospy.Subscriber('/my_laser/scan', LaserScan, callback)
rospy.spin()
```
在回调函数中,可以处理激光雷达传感器的扫描数据。
阅读全文