User`s manual

22
AXIS Q7404 - Events
Save stream
To upload images to an FTP or HTTP server, or to send images by email, check the Save stream box.
Image frequency – Set the image frequency to a desired frame rate. The frame rate will be the best possible, but might not be
as high as specified, especially if uploading via a slow connection.
Pre-trigger and Post-trigger buffers
Pre- and post-trigger buffers are very useful when checking to see what happened immediately before and/or after a trigger,
for example, 30 seconds before and/or after a door was opened. All uploaded images are JPEG images.
Include pre-trigger buffer - Images stored internally in the server from the time immediately preceding the trigger. Check the
box to enable the pre-trigger buffer and specify the desired buffer length in seconds, minutes or hours.
Include post-trigger buffer - Contains images from the time immediately after the trigger. The post-trigger buffer is
configured in the same way as the pre-trigger buffer.
Notes:
• Pre-trigger and post-trigger buffers will be lost if the connection to the event server fails.
• The maximum length of the pre-/post-buffer depends on the video image size and selected frame rate.
• If the pre- or post-buffer is too large for the video encoder’s internal memory, the frame rate is reduced and
individual images may be missing. If this occurs, an entry is created in the log file.
Continue image upload (unbuffered) - Upload video images for a specific length of time for as long as the trigger is active.
Select type – Upload images to an FTP or HTTP server, or send images by email.
Create folder – Images uploaded to FTP and HTTP servers can be saved to designated folders. Folders can for example be
names using the current date and time, see File Naming & Date/Time Formats in the online help .
Base file name – Used to name all uploaded images. Add a suffix or use your own file format to give the images unique
names, see File Naming & Date/Time Formats in the online help .
Use stream profile – Use the settings saved in a stream profile when uploading or emailing images. Only MJPEG profiles can
be selected.
Scheduled event
A Scheduled event can be activated at preset times, in a repeating pattern on selected weekdays.
How to set up a scheduled event
The following example describes how to configure the video encoder to save images from pre-programmed time periods.
1. Click Add scheduled on the Event Types page.
2. Enter a descriptive Name for the event, such as Scheduled e-mail.
3. Set the Priority (High, Normal or Low).
4. Set the Activation Time parameters (24h clock) for the event. For example, select Recurrence pattern and let the
event start on Fridays at 18.00 with a duration of 62 hours.
5. Set the When Activated parameters, that is, define what the video encoder will do when the event is active. To
save images, select Save stream and enter the required information. See Save stream, above.
6. Click OK to save the Event in the Event Types list.
Please see the online help for descriptions of each available option.