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General information on GB/T28181 standard and supported functions

Intellect Axxon PSIM supports connecting devices via the Chinese standard GB/T28181. This standard is based on SIP over UDP (and over TCP since GB/T28181-2016). The GB/T28181 uses the following protocols over SIP:

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This allows receiving the status of sensors, events from detectors, PTZ and relays control, access the built-in archive of the IP device (make sure to set the correct device time zone in the Intellect Axxon PSIM), etc. within the SIP session. Single-channel and multi-channel devices in single-stream mode and working with the UDP and TCP transport protocols is also supported.

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For the most up-to-date information on this standard and the features supported in Intellect Axxon PSIM, see the Documentation Drivers Pack.

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Configuration of IP devices connected via GB/T28181 is performed through the web interface of the devices. Settings are not sent from Intellect Axxon PSIM to the device.

Before connecting a camera via this protocol to Intellect Axxon PSIM, perform the following steps to configure SIP on the device:

  1. Set the Server IP to equal the Server's IP address.
  2. Set the Server port (5060 by default).
  3. Set the Device ID. The ID should be set on all cameras connected via the GB/T28181 protocol and must be unique. The format of the connection code (device ID and server ID) is a 20-digit number:
    1. the first 10 digits specify the address (according to the GB/T-2260-2007 standard);
    2. the next 10 digits indicate device information.
      If the IP device is located behind NAT, then forward and explicitly specify the external address of the Server, the port/port range for receiving video, and the SIP port of Intellect Axxon PSIM Server. Example: 34020000001110000001/50557-51557@10.3.3.11/85.172.174.36​
  4. For the device to perform autodiscovery of the Server more quickly, reduce the default value of RefreshRegTime. The name of this setting may vary on some cameras.

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Note
titleImportant!

No more than one SIP server can be used for IP devices connection via the GB/T28181 protocol. This means that several Video Capture Device objects with GBT28181 type can be created in the Intellect Axxon PSIM hardware tree, however, the part of the address after @ must match for all of them. The server ID, local address, external address, and port must be the same for all devices. If at least one parameter is different (for example, the local IP address is not set for some device when it is set for other devices), then such a device will not start.


Info
titleNote.
 Intellect  Axxon PSIM does not support auto-discovery of devices connected via GB/T28181 and these devices are not added using the Camera discovery tool.

After configuring the device as described earlier, add it to Intellect Axxon PSIM as follows:

  1. Go to the Hardware tab of the Systemsettings dialog box (1).
  2. Create a Video Capture Device object under the Computer object (2). The settings panel of the object appears on the right of the System settings dialog box.
  3. Select the GBT28181 value in the Type dropdown list (3).
  4. In the IP field specify the value of Device ID parameter set during IP device configuration (4). The following additional parameters can be specified optionally as follows:
    [gbt://]deviceID[/videoPort]@serverID[-serverLocalIP[/serverExternalIP]]
    OR
    [gbt://]deviceID[/videoPortFirst-videoPortLast]@serverID[-serverLocalIP[/serverExternalIP]]
    where:
    deviceID is the Device ID parameter;
    serverID is the identifier of the Intellect Axxon PSIM Server generated according to the same rules as the IP device ID (see above).
    videoPort is the port for receiving video;
    videoPortFirst-videoPortLast is range of ports for receiving video;
    serverLocalIP is the local IP address of the Intellect Axxon PSIM Server, which sets the network interface on which the Server should be available;
    serverExternalIP is the global IP address of the Intellect Axxon PSIM Server; this parameter is in use when the Intellect Axxon PSIM Server is behind the gateway. In this case, this IP address is specified as the SIP Server IP address in the IP device settings.


    Info
    titleExamples.
    34020000001320000008@34020000002000000001
    34020000001320000008@34020000002000000001-10.0.40.246/113.125.160.58 
    34020000001320000008@34020000002000000001-10.0.40.246 
    34020000001320000008@34020000002000000001-/113.125.160.58 
    34020000001320000008/50200@34020000002000000001 
    34020000001320000008/50200-50210@34020000002000000001-10.0.40.246


  5. In the Port field, enter the local port number that the Intellect Axxon PSIM Server shall listen for receiving messages from the IP device (5). Usually this is the default SIP port: 5060.

    Info
    titleNote.

    The IP device SIP port is detected automatically.


  6. The Name and the Password fields are not used.
  7. Click the Apply button (7).
  8. Create a Camera object under the VideoCaptureDevice object. The settings panel of the object appears on the right of the System settings dialog box.
  9. Click the Apply button.

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