Specifications
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You may wish to have a collection of the 10 most recent images, for example. When you select
to Maintain a ring, a three digit number will be appended to the filename. This number will
cycle from 000 to the number of images that you specify (minus 1) as each image is
uploaded. So, the first image will have "000" the second "001" and so on. If you specify the
Preserve time order option, the newest image will always be the one with "000" appended; all
other images will be renamed down (a queue format, where 000 becomes 001, 001 becomes
002, etc., and finally 009 is deleted). Without the Preserve time order option, images in the
ring will be overwritten in numerical order (000, 001, ... 009, and then 000 again).
Note: if your filename contains time formatting codes, the function of the ring is altered, such
that a new ring is created when the time designated by the time format changes. In other
words, if you use "%a" (day of the week) in your filename format, and ask for a ring of 10
images, you will get 10 images for each day of the week.
Images may be "queued" for upload in one or more of three possible ways. The first is time-
periodic. That is, after a specified number of seconds have elapsed, an image is uploaded,
regardless of motion. The second is motion-triggered. When you select this option, you may
also specify a "break time"--the minimum time between consecutive uploads. The final option
will cause an image to be uploaded when you use the "snapshot" command on the toolbar
(See 4.).
Any combination or all of these three methods may be used. The time-periodic and motion-
triggered methods use the same internal timer. If either one of these methods causes an
upload, the trigger is reset. That is, if an image is uploaded due to motion, the next time-
periodic upload will not occur for the specified number of seconds, regardless of when the last
time-periodic upload occurred.
The upload "queue" actually has only one opening. That is, if you specify an image update
each 5 seconds, and it takes 10 seconds to perform one upload, any images received by the
camera during the 10 second upload period are not considered for uploading. In this example,
uploading will begin again as soon as an image arrives to the camera following the previous
upload.
Note: if your filename format contains time formatting codes, the function of the ring is
altered, such that a new ring is created when the time designated by the time format
changes. In other words, if you use "%a" (day of the week) in your filename format, and ask
for a ring of 10 images, you will get 10 images for each day of the week.
Startup and Shutdown Files
If you are posting images to a website, you may wish for that website to display different pages
or images based on whether or not your webcam is available. If you select the "post files from