
Software User’s Manual Ver.A1D-502-V8.03.30-NB
93
5-7-3-3 Send URL commands
URL commands can be sent to HTTP CGI servers upon event. This provides the
possibility of highly intelligent response upon event. IP devices and many other devices
also have embedded CGI servers that may be controlled.
When Event Handler sends an URL command, it will send one set of command when
the event is trigged, and another as the event becomes inactive. Depending on the CGI
design, the URL commands may be able to be stringed together, and multiple commands
may be issued in a single line.
An example would be when the access control device at the entrance detects an entry,
this device provides a DI signal to the PTZ camera, and triggers an event. This event
then sends a loopback command to the PTZ Camera itself (by setting its own IP as the
HTTP CGI server). The PTZ Camera then moves to a preset location, stays until the
event is over, and then moves back to another location. At the same time it moves to
the pre-set location, it increases the bitrate from 1M to 3M, and the frame rate from 4
fps to 8 fps. The bitrate / fps changes are reverted at the end of event.
*Pre-requisites: HTTP CGI server setup.
*Pre-requisites: SMTP server / HTTP CGI server setup.