发表于 2023-7-23 15:40:49
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[控制算法]
PX4飞控通过python代码控制能解锁成功但是不能起飞和飞行
想通过
local_pos_pub.publish(pose)的方式向无人机发送位置指令,通过更改PX4官方的python代码示例,发现解锁的功能和改变模式的功能能够成功,但是无人机不会飞到我们代码里指定的位置,比如(3,0,3)之类的,甚至也不能起飞,我们尝试直接执行takeoff的指令,发现确实传送了22的起飞指令,但是无人机并没有反应。下面是我们的代码:import rospy
from geometry_msgs.msg import PoseStamped
from mavros_msgs.msg import State
from mavros_msgs.srv import CommandBool, CommandBoolRequest, SetMode, SetModeRequest
current_state = State()
flag=1
def state_cb(msg):
global current_state
current_state = msg
if __name__ == "__main__" :
rospy.init_node("offb_node_py" )
state_sub = rospy.Subscriber("mavros/state" , State, callback = state_cb)
local_pos_pub = rospy.Publisher("mavros/setpoint_position/local" , PoseStamped, queue_size=10 )
rospy.wait_for_service("/mavros/cmd/arming" )
arming_client = rospy.ServiceProxy("mavros/cmd/arming" , CommandBool)
rospy.wait_for_service("/mavros/set_mode" )
set_mode_client = rospy.ServiceProxy("mavros/set_mode" , SetMode)
# Setpoint publishing MUST be faster than 2Hz
rate = rospy.Rate(20 )
# Wait for Flight Controller connection
while (not rospy.is_shutdown() and not current_state.connected):
rate.sleep()
pose = PoseStamped()
pose.pose.position.x = 0
pose.pose.position.y = 0
pose.pose.position.z = 1
# Send a few setpoints before starting
for i in range(100 ):
if (rospy.is_shutdown()):
break
local_pos_pub.publish(pose)
rate.sleep()
offb_set_mode = SetModeRequest()
offb_set_mode.custom_mode = 'OFFBOARD'
arm_cmd = CommandBoolRequest()
arm_cmd.value = True
last_req = rospy.Time.now()
while (not rospy.is_shutdown()):
if (current_state.mode != "OFFBOARD" and (rospy.Time.now() - last_req) > rospy.Duration(5.0 )):
if (set_mode_client.call(offb_set_mode).mode_sent == True ):
rospy.loginfo("OFFBOARD enabled" )
last_req = rospy.Time.now()
else :
if (not current_state.armed and (rospy.Time.now() - last_req) > rospy.Duration(5.0 )):
if (arming_client.call(arm_cmd).success == True ):
rospy.loginfo("Vehicle armed" )
last_req = rospy.Time.now()
if flag==1 and ((rospy.Time.now() - last_req) > rospy.Duration(5.0 )):
rospy.loginfo("position1(0,0,3)" )
pose.pose.position.x = 0
pose.pose.position.y = 0
pose.pose.position.z = 3
last_req = rospy.Time.now()
#local_pos_pub.publish(pose)
rospy.sleep(3 )
flag=2
if flag==2 and ((rospy.Time.now() - last_req) > rospy.Duration(5.0 )):
rospy.loginfo("position1(3,0,3)" )
pose.pose.position.x = 3
pose.pose.position.y = 0
pose.pose.position.z = 3
last_req = rospy.Time.now()
#local_pos_pub.publish(pose)
rospy.sleep(3 )
flag=3
#local_pos_pub.publish(pose)
if flag==3 and ((rospy.Time.now() - last_req) > rospy.Duration(5.0 )):
pose.pose.position.x = 0
pose.pose.position.y = 0
pose.pose.position.z = 0
last_req = rospy.Time.now()
#local_pos_pub.publish(pose)
break
local_pos_pub.publish(pose)
rate.sleep()
rospy.spin()
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