Added synchronisation between camera and data collection

worlds/test_world.sdf

@@ -188,6 +188,9 @@
             <diffuse>0.8 0.8 0.8 1</diffuse>
             <specular>0.8 0.8 0.8 1</specular>
           </material>
+          <plugin filename="ignition-gazebo-label-system" name="ignition::gazebo::systems::Label">
+            <label>40</label>
+          </plugin>
         </visual>
       </link>
     </model>
@@ -196,13 +199,6 @@
       <static>true</static>
       <link name="link">
         <pose>0 0 0 0 0 0</pose>
-        <collision name="collision">
-          <geometry>
-            <box>
-              <size>0.112 0.112 0.3</size>
-            </box>
-          </geometry>
-        </collision>
         <visual name="visual">
           <geometry>
             <mesh><uri>model://assets/blue_cone.dae</uri></mesh>