GB28181协议实现系列之----IPC设备目录查询（3）
设备目录查询是国标平台对国标设备接入的目录查询，目的是查询该设备带有的监控点和报警设备信息以及语言设备信息。
1. SIP服务器首先发起请求要求查询设备目录，发送的协议体可以参考数据包。
2. IPC收到设备的目录查询信息之后回复200OK。
3. IPC向SIP服务器上报IPC的设备目录，以XML的协议体为目录信息：
<?xmlversion="1.0"?>
<Response>
<CmdType>Catalog</CmdType>
<SN>248</SN>
<DeviceID>34020000001320000001</DeviceID>
<SumNum>1</SumNum>
<DeviceList Num="1">
<Item>
<DeviceID>34020000001320000001</DeviceID>
<Name>IPCamera</Name>
<Manufacturer>IPCameraCompany</Manufacturer>
<Model>PAN_QZ</Model>
<Owner>IPCameraCompany</Owner>
<CivilCode>34020000</CivilCode>
<Address>Address</Address>
<Parental>0</Parental>
<SafetyWay>0</SafetyWay>
<RegisterWay>1</RegisterWay>
<Secrecy>0</Secrecy>
<IPAddress>192.168.1.164</IPAddress>
<Port>80</Port>
<Password>9999</Password>
<Status>ON</Status>
</Item>
</DeviceList>
</Response>
4. 网页弹出的界面显示设备目录信息如下：
SIP交互数据（4次数据交互）：
MESSAGE sip:[email protected]/2.0
Call-ID: [email protected]
CSeq: 1 MESSAGE
From:<sip:[email protected]>;tag=03833219_53173353_41afe263-c634-4962-916c-579a717a3435
To:<sip:[email protected]>
Max-Forwards: 70
Content-Type: Application/MANSCDP+xml
Route:<sip:[email protected]:5060;lr>
Via: SIP/2.0/UDP192.168.1.154:5060;branch=z9hG4bK41afe263-c634-4962-916c-579a717a3435_53173353_9738104298451
Content-Length: 125
<?xml version="1.0"?>
<Query>
<CmdType>Catalog</CmdType>
<SN>248</SN>
<DeviceID>34020000001320000001</DeviceID>
</Query>
SIP/2.0 200 OK
Via: SIP/2.0/UDP192.168.1.154:5060;branch=z9hG4bK41afe263-c634-4962-916c-579a717a3435_53173353_9738104298451
From:<sip:[email protected]>;tag=03833219_53173353_41afe263-c634-4962-916c-579a717a3435
To:<sip:[email protected]>;tag=153980316
Call-ID:[email protected]
CSeq: 1 MESSAGE
User-Agent: IPC v1.0
Content-Length: 0
MESSAGEsip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP192.168.1.168:5060;rport=5060;branch=z9hG4bK250059858;received=192.168.1.168
From:<sip:[email protected]>;tag=1446330830
To:<sip:[email protected]:5060>
Call-ID: 959221034
CSeq: 20 MESSAGE
Content-Type: Application/MANSCDP+xml
Max-Forwards: 70
User-Agent: IPC v1.0
Content-Length: 716
<?xml version="1.0"?>
<Response>
<CmdType>Catalog</CmdType>
<SN>248</SN>
<DeviceID>34020000001320000001</DeviceID>
<SumNum>1</SumNum>
<DeviceList Num="1">
<Item>
<DeviceID>34020000001320000001</DeviceID>
<Name>panorama camera</Name>
<Manufacturer>AVIC BIT</Manufacturer>
<Model>BY360</Model>
<Owner>AVIC BIT</Owner>
<CivilCode>34020000</CivilCode>
<Address>Address</Address>
<Parental>0</Parental>
<SafetyWay>0</SafetyWay>
<RegisterWay>1</RegisterWay>
<Secrecy>0</Secrecy>
<IPAddress>192.168.1.168</IPAddress>
<Port>80</Port>
<Password>9999</Password>
<Status>ON</Status>
</Item>
</DeviceList>
</Response>
SIP/2.0 200 OK
To:<sip:[email protected]:5060>;tag=42936228_53173353_71eada17-b544-4355-8660-fd5692a15aca
Via: SIP/2.0/UDP192.168.1.168:5060;rport=5060;branch=z9hG4bK250059858;received=192.168.1.168
CSeq: 20 MESSAGE
Call-ID: 959221034
From:<sip:[email protected]>;tag=1446330830
Content-Length: 0