Stop the sensor server (soft stop - signal packet loop to stop)
        Warning: Is non blocking (server might still do something after this!)

        :rtype: None

def stop(self):
        """
        Stop the sensor server (soft stop - signal packet loop to stop)
        Warning: Is non blocking (server might still do something after this!)

        :rtype: None
        """
        self.debug("()")
        super(SensorServer, self).stop()
        # No new clients
        if self._multicast_socket is not None:
            self._shutdown_multicast_socket()
        # Signal packet loop to shutdown
        self._is_stopped.set()