python ros 警报上报

#!/usr/bin/env python2.
# -*- coding: utf- -*-

import rospy
import time
from common_msgs.msg import alarminfo

def talker():
    rospy.init_node('NetWorking', anonymous=True)
    networking_monitor = rospy.Publisher('bp_alarm',alarminfo, queue_size=)
    rospy.Rate() # 10hz

    info = alarminfo()
    info.code = ''
    info.level =
    info.msg = "The robot attitude abnormal"

    time.sleep(3.5)
    networking_monitor.publish(info)
    time.sleep(3.5)
    rospy.signal_shutdown("closed!")

if __name__ == '__main__':
    try:
        talker()
    except rospy.ROSInterruptException:
        pass