string strGps = "妹妹";
                Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
                IPAddress broadcast = IPAddress.Parse("122.194.5.227");
                string temp = "@JT[njty](njty)<002>0002" + strGps + "000000001001";
                byte[] b = Encoding.UTF8.GetBytes(temp);
                IPEndPoint ep = new IPEndPoint(broadcast, 5000);
                s.SendTo(b, ep);