INTELLINET NETWORK NSC15-WG User Manual - Manual (Page 91)

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Camera -> Advance -> HTTP Event -> General:
HTTP Event represents the most advanced form of the event trigger actions.
When this function is enabled, the camera will not upload or send any video
clips to a remote location, but will instead send an HTTP request to a specified
URL.
What is the purpose of this function? Here are two examples:
1. Some of the more sophisticated third-party video monitoring and
surveillance applications have the ability to start a recording when the camera
calls a certain URL on the video surveillance server. Here, the surveillance
software does not constantly monitor the live video stream to determine
whether or not a motion event has occurred, but it listens to the HTTP events
that are sent by the camera. The advantage of this setup is that the network
load is kept to a minimum because a connection between the camera and the
surveillance software is only established in the event that an alarm event has
occurred. If you think of larger installations involving many cameras, you can
see what a difference this can make.
2. The HTTP event can be used to trigger a script on a Web server, i.e., a PHP
script that logs events in a database so that a record is kept of all events. The
same script could also be retrieving images from the camera when the event
happens. You can also instruct the camera to add a unique parameter to the
HTTP request, based on the type of event that has occurred (see HTTP Event ->
Alarm Sending).
The possibilities for this function are endless and the implementation in the
network camera provides great flexibility.