激光避障程序用什么写

时间:2025-01-29 00:21:42 手机游戏

激光避障程序通常使用 ROS(Robot Operating System)激光雷达(Lidar)的相关库来编写。以下是一个基本的激光避障程序的示例,使用了ROS和RPLIDAR库:

安装ROS和RPLIDAR

首先,确保你已经安装了ROS和RPLIDAR。可以参考以下命令进行安装:

```bash

sudo apt-get install ros--rplidar-ros

```

将``替换为你的ROS发行版名称,例如`kinetic`。

创建ROS包

创建一个新的ROS包,用于编写避障程序:

```bash

cd ~/catkin_ws/src

catkin_create_pkg laser_obstacle_avoidance roscpp sensor_msgs geometry_msgs

cd ~/catkin_ws

catkin_make

source devel/setup.bash

```

编写激光避障程序

在`laser_obstacle_avoidance`包中创建一个新的Python脚本,例如`laser_obstacle_avoidance.py`,并添加以下代码:

```python

!/usr/bin/env python

import rospy

from sensor_msgs.msg import LaserScan

from geometry_msgs.msg import Twist

class LaserObstacleAvoidance:

def __init__(self):

rospy.init_node('laser_obstacle_avoidance', anonymous=True)

self.laser_sub = rospy.Subscriber('/scan', LaserScan, self.laser_callback)

self.cmd_vel_pub = rospy.Publisher('/cmd_vel', Twist, queue_size=10)

self.min_distance = 1.0 最小避障距离

def laser_callback(self, data):

min_distance = min(data.ranges)

if min_distance < self.min_distance:

避障逻辑

twist = Twist()

twist.linear.x = 0.0 停止前进

twist.angular.z = 1.0 转向避开障碍物

self.cmd_vel_pub.publish(twist)

else:

正常前进

twist = Twist()

twist.linear.x = 0.2 前进速度

twist.angular.z = 0.0 转向保持直线

self.cmd_vel_pub.publish(twist)

if __name__ == '__main__':

try:

avoidance = LaserObstacleAvoidance()

rospy.spin()

except rospy.ROSInterruptException:

pass

```

编译和运行

在`laser_obstacle_avoidance`包中创建一个`launch`文件,例如`laser_obstacle_avoidance.launch`,并添加以下代码:

```xml

```

然后运行以下命令来启动ROS节点和激光雷达:

```bash

roslaunch laser_obstacle_avoidance laser_obstacle_avoidance.launch

```

这个示例程序订阅了激光雷达的扫描数据,并在检测到障碍物时停止前进并转向避开障碍物。你可以根据具体需求进一步扩展和优化这个程序。