added sonar (topic: /mavros/distance_sensor)
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@ -2,7 +2,7 @@
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<sdf version='1.6'>
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<model name='spiri'>
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<link name='base'>
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<pose frame=''>0 0 0 0 -0 3.141</pose>
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<pose frame=''>0 0 0 0 -0 0</pose>
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<gravity>1</gravity>
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<inertial>
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<pose frame=''>0 0.00268 -0.000742 0 -0 0</pose>
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@ -408,6 +408,118 @@
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<child>gps0_link</child>
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</joint>
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</model>
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<!--model name="sonar">
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<link name="sonar_link">
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<pose>0 0 0 0 0 0</pose>
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<inertial>
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<pose>0 0 0 0 0 0</pose>
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<mass>0.000000000000001</mass>
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<inertia>
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<ixx>2.08333333e-7</ixx>
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<ixy>0</ixy>
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<ixz>0</ixz>
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<iyy>2.08333333e-7</iyy>
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<iyz>0</iyz>
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<izz>4.16666667e-8</izz>
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</inertia>
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</inertial>
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<visual name="visual">
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<geometry>
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<box>
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<size>0.005 0.015 0.005</size>
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</box>
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</geometry>
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<material>
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<script>
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<name>Gazebo/Black</name>
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</script>
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</material>
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</visual>
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<sensor name="sonar" type="sonar">
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<pose>0 0 0 0 0 0</pose>
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<sonar>
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<min>0.02</min>
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<max>10.0</max>
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<radius>1.33974388395</radius>
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</sonar>
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<plugin name="SonarPlugin" filename="libgazebo_sonar_plugin.so">
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<robotNamespace></robotNamespace>
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<topic>/height_cesar</topic>
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</plugin>
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<always_on>1</always_on>
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<update_rate>20</update_rate>
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<visualize>true</visualize>
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</sensor>
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</link>
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</model>
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<joint name='sonar_joint' type='fixed'>
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<parent>base</parent>
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<child>sonar_link</child>
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</joint-->
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<!--sonar-->
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<link name="sonar_link">
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<pose frame=''>0 0 0 0 1.57 0</pose>
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<inertial> <!-- causes issues when omitted -->
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<mass>0.05</mass>
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<inertia>
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<ixx>2.08333333333e-07</ixx>
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<iyy>5.20833333333e-07</iyy>
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<izz>5.20833333333e-07</izz>
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</inertia>
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</inertial>
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<visual name="sonar_link_visual">
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<pose frame=''>0 0 0 0 0 0</pose>
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<geometry>
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<cylinder>
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<length>0.008</length>
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<radius>0.004</radius>
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</cylinder>
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</geometry>
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<material>
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<script>
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<name>Gazebo/Blue</name>
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<uri>file://media/materials/scripts/gazebo.material</uri>
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</script>
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</material>
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</visual>
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<sensor type="ray" name="spiri_sonar">
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<update_rate>10</update_rate>
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<visualize>true</visualize>
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<ray>
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<scan>
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<horizontal>
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<samples>1</samples>
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<resolution>1</resolution>
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<min_angle>-0</min_angle>
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<max_angle>0</max_angle>
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</horizontal>
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</scan>
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<range>
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<min>0.06</min> <!-- do not lower past 0.06 -->
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<max>35</max> <!-- do not increase past 35 -->
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<resolution>0.01</resolution>
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</range>
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<noise>
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<type>gaussian</type>
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<mean>0.0</mean>
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<stddev>0.01</stddev>
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</noise>
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</ray>
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<plugin name="spiri_sonar" filename="libgazebo_ros_range.so">
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<gaussianNoise>0.005</gaussianNoise>
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<alwaysOn>true</alwaysOn>
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<updateRate>10</updateRate>
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<topicName>/mavros/distance_sensor</topicName>
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<frameName>sonar_link</frameName>
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<fov>0</fov>
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<radiation>ultrasound</radiation>
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</plugin>
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</sensor>
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</link>
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<joint name="sonar_joint" type="fixed">
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<parent>base</parent>
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<child>sonar_link</child>
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</joint>
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<plugin name='rosbag' filename='libgazebo_multirotor_base_plugin.so'>
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<robotNamespace/>
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<linkName>base</linkName>
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@ -101,8 +101,10 @@ class Main:
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# PD Thrust Controller terms
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# gains for thrust PD Controller
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self.Kp = 2.7
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self.Kd = 3 #2
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#self.Kp = 2.7
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#self.Kd = 3
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self.Kp = 2.7
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self.Kd = 3
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self.max_a = 14.2
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self.max_t = self.drone_m*self.max_a
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self.R = np.empty([3,3]) # rotation matrix
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@ -252,15 +254,22 @@ class Main:
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# Taeyoung Lee, Melvin Leok, and N. Harris McClamroch
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self.waypoints_srv_cb()
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self.error = np.array([[self.dr_pos.position.x - self.xd.x],
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[self.dr_pos.position.y - self.xd.y],
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[self.dr_pos.position.z - self.xd.z - self.thrust_offset]])
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[self.dr_pos.position.y - self.xd.y],
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[self.dr_pos.position.z - self.xd.z - self.thrust_offset]])
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self.R = self.quaternion_rotation_matrix() # determine Rotation Matrix
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self.error_vel = self.dr_vel - self.path_vel
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self.R = self.quaternion_rotation_matrix() # determine Rotation Matrix
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self.R_e3 = np.array([[self.R.T[2][0]],[self.R.T[2][1]],[self.R.T[2][2]]])
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#thrust = np.dot(np.dot(9.81*self.drone_m,self.e3) - self.Kp*self.error - self.Kd*self.dr_vel.T,self.R.T[2])/self.max_t
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thrust_vector = np.dot(np.dot(9.81*self.drone_m,self.e3) - self.Kp*self.error - self.Kd*self.dr_vel.T,self.R.T[2])/self.max_t
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thrust = thrust_vector[2]
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#thrust = np.dot(np.dot(9.81*self.drone_m,self.e3) - self.Kp*self.error - self.Kd*self.dr_vel,self.R.T[2])/self.max_t
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#thrust_vector = np.dot(9.81*self.drone_m*self.e3 - self.Kp*self.error - self.Kd*self.dr_vel,self.R_e3)/self.max_t
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#thrust_vector = (9.81*self.drone_m*self.e3 - self.Kp*self.error - self.Kd*self.dr_vel -9.81*self.drone_m*self.path_acc)/self.max_t
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thrust_vector = (9.81*self.drone_m - self.Kp*self.error[2] - self.Kd*self.dr_vel[2])/self.max_t
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#thrust = thrust_vector[0]*self.R_e3[0] + thrust_vector[1]*self.R_e3[1] + thrust_vector[2]*self.R_e3[2]
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thrust = thrust_vector/(math.cos(self.EulerAng[0]*self.EulerAng[1]))
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#thrust = thrust_vector[2]
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# Value needs to be between 0 - 1.0
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self.att_targ.thrust = max(0.0,min(thrust,1.0))
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