[置顶] 【GBT28181开发：SIP协议实践】之设备远程启动

雨点打透心脏的1/2处 2022-03-27 11:22 362阅读 0赞

下面学习的是设备远程控制的流程，和设备信息、设备目录、设备状态的流程差不多，主要是描述的协议字段不同，模拟SPVMN系统向源设备发送远程启动控制指令，记录下交互的消息，详细研究了下：

转载请注明出处：[http://blog.csdn.net/longlong530][http_blog.csdn.net_longlong530]

**一.环境搭建：**

环境准备：[http://blog.csdn.net/longlong530/article/details/9176989][http_blog.csdn.net_longlong530_article_details_9176989]

**UAC(模拟IPC)：**

IP：192.168.10.177（同事人不在~，直接用自己的机子模拟了下）

Port：5061

**UAS(模拟SIP服务器)：**

IP：192.168.10.177

Port：5060

**SPVMN操作过程：**

1.先选择调测设备类型

2.打开UAC.exe完成注册（ [http://blog.csdn.net/longlong530/article/details/9179513][http_blog.csdn.net_longlong530_article_details_9179513]）

3.点击设备远程启动，会在左边的文本框中显示xml。

<?xml version="1.0"?>
    <Control>
    <CmdType>DeviceControl</CmdType>
    <SN>17298</SN>
    <DeviceID>34020000001320000001</DeviceID>
    <TeleBoot>Boot</TeleBoot>
    </Control>

4.点击发送消息，右边对话框即可显示消息交互的过程。（图就不截了~）

**二.业务时序图：**

**![Center][]**

**三.消息详解：**

**第一步，UAS-->UAC**

设备控制命令同样是采用Message消息

Content-type头域为Application/MANSCDP+xml，设备状态查询命令采用MANSCDP协议格式，具体参见GBT28181国标。

请求命令包含命令类型（CmdType）、命令序列号（SN）、设备编码（DeviceID）

MESSAGE sip:34020000001320000001@3402000000 SIP/2.0
    Call-ID: fac5d9915d7b4b64e46054bbbda3f29f@0.0.0.0
    CSeq: 1 MESSAGE
    From: <sip:34020000002000000001@3402000000>;tag=58726327_53173353_c2be9be1-4121-42af-b4e2-e4896ab42120
    To: <sip:34020000001320000001@3402000000>
    Max-Forwards: 70
    Content-Type: Application/MANSCDP+xml
    Route: <sip:34020000001320000001@192.168.10.177:5061;line=9a1ca01668b5778;lr>
    Via: SIP/2.0/UDP 192.168.10.177:5060;branch=z9hG4bKc2be9be1-4121-42af-b4e2-e4896ab42120_53173353_18042259617961
    Content-Length: 164
    
    <?xml version="1.0"?>
    <Control>
    <CmdType>DeviceControl</CmdType>
    <SN>17298</SN>
    <DeviceID>34020000001320000001</DeviceID>
    <TeleBoot>Boot</TeleBoot>
    </Control>

**第二步，UAC-->UAS**

UAC收到请求后，立马返回200 0K响应

SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.10.177:5060;branch=z9hG4bKc2be9be1-4121-42af-b4e2-e4896ab42120_53173353_18042259617961
    From: <sip:34020000002000000001@3402000000>;tag=58726327_53173353_c2be9be1-4121-42af-b4e2-e4896ab42120
    To: <sip:34020000001320000001@3402000000>;tag=3874540817
    Call-ID: fac5d9915d7b4b64e46054bbbda3f29f@0.0.0.0
    CSeq: 1 MESSAGE
    User-Agent: eXosip/3.6.0
    Content-Length: 0

**第三步，UAC-->UAS**

源设备响应服务器的设备远程启动请求，同样采用MANSCDP协议，返回状态相关信息

MESSAGE sip:34020000001320000001@192.168.10.177 SIP/2.0
    Via: SIP/2.0/UDP 192.168.10.177:5061;rport=5061;branch=z9hG4bK3569164341;received=192.168.10.177
    From: <sip:192.168.10.177:5060>;tag=3889968117
    To: <sip:34020000001320000001@192.168.10.177>
    Call-ID: 2825372510
    CSeq: 20 MESSAGE
    Content-Type: Application/MANSCDP+xml
    Max-Forwards: 70
    User-Agent: eXosip/3.6.0
    Content-Length: 162
    
    <?xml version="1.0"?>
    <Response>
    <CmdType>DeviceControl</CmdType>
    <SN>17298</SN>
    <DeviceID>34020000001320000001</DeviceID>
    <Result>OK</Result>
    </Response>

**第四步，UAS-->UAC**

服务器收到响应后，立马返回200 OK响应，整个业务结束。

SIP/2.0 200 OK
    To: <sip:34020000001320000001@192.168.10.177>;tag=70215966_53173353_3fef6c77-3ced-484e-9fe7-8905f724c295
    Via: SIP/2.0/UDP 192.168.10.177:5061;rport=5061;branch=z9hG4bK3569164341;received=192.168.10.177
    CSeq: 20 MESSAGE
    Call-ID: 2825372510
    From: <sip:192.168.10.177:5060>;tag=3889968117
    Content-Length: 0

[http_blog.csdn.net_longlong530]: http://blog.csdn.net/longlong530
[http_blog.csdn.net_longlong530_article_details_9176989]: http://blog.csdn.net/longlong530/article/details/9176989
[http_blog.csdn.net_longlong530_article_details_9179513]: http://blog.csdn.net/longlong530/article/details/9179513
[Center]: /images/20220327/3a1e8f6d08984974a482b24625095ac0.png