 <?xml version="1.0" encoding="utf-8"?><root><common><building_id>35011</building_id><gateway_id>350112</gateway_id><type>request</type></common><id_validate operation="request"></id_validate></root>

<?xml version="1.0"  encoding="utf-8"?
><root><common><building_id>350660</building_id><gateway_id>350660</gateway_id><type>sequence</type></common><id_validate  operation="sequence"><sequence>aabbccddeeffgg112233445566</sequence></id_validate></root>

<?xml version="1.0"  encoding="utf-8"?
><root><building_id>350660</building_id><gateway_id>350660</gateway_id><type>result</type></common><i
d_validate operation=result"><result>pass</result></id_validate></root>


<?xml version="1.0" encoding="utf-8"?
><root><common><building_id>350660</building_id><gateway_id>350660</gateway_id><type>time</type></com
mon><heart_beat operation="time"><time>201307271450</time></heart_beat></root>