171 lines
7.0 KiB
Python
171 lines
7.0 KiB
Python
import rospy
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from mavros_msgs.msg import State, PositionTarget
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from mavros_msgs.srv import CommandBool, SetMode
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from geometry_msgs.msg import PoseStamped, Pose, Twist
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from nav_msgs.msg import Odometry
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from gazebo_msgs.srv import GetModelState
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from std_msgs.msg import String
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from pyquaternion import Quaternion
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import math
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import sys
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class Communication:
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def __init__(self, vehicle_id):
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self.vehicle_type = 'rover'
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self.vehicle_id = vehicle_id
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self.local_pose = None
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self.target_motion = PositionTarget()
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self.arm_state = False
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self.motion_type = 0
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self.flight_mode = None
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self.mission = None
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self.motion_type = 1
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self.coordinate_frame = 1
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'''
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ros subscribers
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'''
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self.local_pose_sub = rospy.Subscriber(self.vehicle_type+'_'+self.vehicle_id+"/mavros/local_position/pose", PoseStamped, self.local_pose_callback)
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self.mavros_sub = rospy.Subscriber(self.vehicle_type+'_'+self.vehicle_id+"/mavros/state", State, self.mavros_state_callback)
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self.cmd_pose_flu_sub = rospy.Subscriber("/xtdrone/"+self.vehicle_type+'_'+self.vehicle_id+"/cmd_pose_flu", Pose, self.cmd_pose_flu_callback)
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self.cmd_pose_enu_sub = rospy.Subscriber("/xtdrone/"+self.vehicle_type+'_'+self.vehicle_id+"/cmd_pose_enu", Pose, self.cmd_pose_enu_callback)
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self.cmd_vel_flu_sub = rospy.Subscriber("/xtdrone/"+self.vehicle_type+'_'+self.vehicle_id+"/cmd_vel_flu", Twist, self.cmd_vel_flu_callback)
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self.cmd_vel_enu_sub = rospy.Subscriber("/xtdrone/"+self.vehicle_type+'_'+self.vehicle_id+"/cmd_vel_enu", Twist, self.cmd_vel_enu_callback)
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self.cmd_sub = rospy.Subscriber("/xtdrone/"+self.vehicle_type+'_'+self.vehicle_id+"/cmd",String,self.cmd_callback)
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'''
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ros publishers
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'''
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self.target_motion_pub = rospy.Publisher(self.vehicle_type+'_'+self.vehicle_id+"/mavros/setpoint_raw/local", PositionTarget, queue_size=10)
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self.odom_groundtruth_pub = rospy.Publisher('/xtdrone/'+self.vehicle_type+'_'+self.vehicle_id+'/ground_truth/odom', Odometry, queue_size=10)
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'''
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ros services
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'''
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self.armService = rospy.ServiceProxy(self.vehicle_type+'_'+self.vehicle_id+"/mavros/cmd/arming", CommandBool)
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self.flightModeService = rospy.ServiceProxy(self.vehicle_type+'_'+self.vehicle_id+"/mavros/set_mode", SetMode)
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self.gazeboModelstate = rospy.ServiceProxy('gazebo/get_model_state', GetModelState)
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print(self.vehicle_type+'_'+self.vehicle_id+": "+"communication initialized")
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def start(self):
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rospy.init_node(self.vehicle_type+'_'+self.vehicle_id+"_communication")
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rate = rospy.Rate(100)
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'''
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main ROS thread
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'''
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while not rospy.is_shutdown():
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self.target_motion_pub.publish(self.target_motion)
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try:
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response = self.gazeboModelstate (self.vehicle_type+'_'+self.vehicle_id,'ground_plane')
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except rospy.ServiceException, e:
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print "Gazebo model state service call failed: %s"%e
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odom = Odometry()
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odom.header = response.header
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odom.pose.pose = response.pose
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odom.twist.twist = response.twist
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self.odom_groundtruth_pub.publish(odom)
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if (self.flight_mode is "LAND") and (self.local_pose.pose.position.z < 0.15):
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if(self.disarm()):
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self.flight_mode = "DISARMED"
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rate.sleep()
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def local_pose_callback(self, msg):
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self.local_pose = msg
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def mavros_state_callback(self, msg):
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self.mavros_state = msg.mode
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def construct_target(self, x=0, y=0, z=0, vx=0, vy=0, vz=0, yaw=0):
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target_raw_pose = PositionTarget()
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target_raw_pose.coordinate_frame = self.coordinate_frame
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target_raw_pose.position.x = x
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target_raw_pose.position.y = y
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target_raw_pose.position.z = z
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target_raw_pose.velocity.x = vx
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target_raw_pose.velocity.y = vy
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target_raw_pose.velocity.z = vz
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target_raw_pose.yaw = yaw
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if(self.motion_type == 0):
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target_raw_pose.type_mask = PositionTarget.IGNORE_VX + PositionTarget.IGNORE_VY + PositionTarget.IGNORE_VZ \
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+ PositionTarget.IGNORE_AFX + PositionTarget.IGNORE_AFY + PositionTarget.IGNORE_AFZ + PositionTarget.IGNORE_YAW_RATE
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if(self.motion_type == 1):
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target_raw_pose.type_mask = PositionTarget.IGNORE_PX + PositionTarget.IGNORE_PY + PositionTarget.IGNORE_PZ \
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+ PositionTarget.IGNORE_AFX + PositionTarget.IGNORE_AFY + PositionTarget.IGNORE_AFZ \
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+ PositionTarget.IGNORE_YAW_RATE
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return target_raw_pose
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def cmd_pose_flu_callback(self, msg):
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self.coordinate_frame=9
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self.motion_type=0
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self.target_motion = self.construct_target(x=msg.position.x,y=msg.position.y,z=msg.position.z,yaw=0)
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def cmd_pose_enu_callback(self, msg):
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self.coordinate_frame=1
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self.motion_type=0
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self.target_motion = self.construct_target(x=msg.position.x,y=msg.position.y,z=msg.position.z,yaw=0)
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def cmd_vel_flu_callback(self, msg):
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self.coordinate_frame=8
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self.motion_type=1
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self.target_motion = self.construct_target(vx=msg.linear.x,vy=msg.angular.z,vz=msg.linear.z,yaw=0)
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def cmd_vel_enu_callback(self, msg):
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self.coordinate_frame=1
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self.motion_type=1
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self.target_motion = self.construct_target(vx=msg.linear.x,vy=msg.angular.z,vz=msg.linear.z,yaw=0)
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def cmd_callback(self, msg):
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if msg.data == '':
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return
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elif msg.data == 'ARM':
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self.arm_state =self.arm()
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print(self.vehicle_type+'_'+self.vehicle_id+": Armed "+str(self.arm_state))
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elif msg.data == 'DISARM':
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self.arm_state =not self.disarm()
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print(self.vehicle_type+'_'+self.vehicle_id+": Armed "+str(self.arm_state))
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elif msg.data[:-1] == "mission" and not msg.data == self.mission:
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self.mission = msg.data
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print(self.vehicle_type+'_'+self.vehicle_id+": "+msg.data)
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else:
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self.flight_mode = msg.data
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self.flight_mode_switch()
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def arm(self):
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if self.armService(True):
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return True
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else:
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print(self.vehicle_type+'_'+self.vehicle_id+": arming failed!")
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return False
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def disarm(self):
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if self.armService(False):
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return True
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else:
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print(self.vehicle_type+'_'+self.vehicle_id+": disarming failed!")
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return False
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def flight_mode_switch(self):
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if self.flightModeService(custom_mode=self.flight_mode):
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print(self.vehicle_type+'_'+self.vehicle_id+": "+self.flight_mode)
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return True
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else:
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print(self.vehicle_type+'_'+self.vehicle_id+": "+self.flight_mode+"failed")
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return False
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if __name__ == '__main__':
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communication = Communication(sys.argv[1])
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communication.start()
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