Not really my field, but I know I've seen stuff in passing about opensource apps
that will do video capture from many cameras, including motion detection (so not
recording when no motion is taking place, etc). such systems obviously integrate
very nicely into Linux. I don't know if anyone is packaging such systems up and
selling support for them or not. But this should now be out of the relm of
relying entirely on unix hackery.
If I were to tackle such a project from scratch, I would look at options that
would leverage MythTV or XBMC to be the display/playback units and look for ways
to get the captured video archived in formats compatible with these systems
Another option, I've seen the term RVU around recently (wikipedia page that I
haven't yet read at http://en.wikipedia.org/wiki/RVU_protocol ), it appears to
be a way for systems to access DVR type resources, and apparently some DirectTV
DVRs support it and some TVs support it natively so you don't need a separate
computer (although a Raspberry Pi is cheap enough that the software flexibility
with something like XBMC or MythTV may be worth the extra complexity)
not a cooked answer, but I think it does mean that things have changed
drastically since you looked at options 5-6 years ago.
David Lang
On Sun, 9 Dec 2012, Jo Rhett wrote:
This probably isn't something that most LOPSA people play with, but if you do
I'm curious what you think. One of my customers has some aging March DVR
units. Good, high-quality video from both cabled and IP cameras. Something
like 60 cameras across 2 sites total. At the time I looked (5-6 years ago),
nothing compared to March in terms of quality/price for that density.
Has anything else sprung up or that I overlooked on my previous review which
we should consider? Note that solutions which depend entirely on unix hackery
are not really an option. The staff who will maintain this are good
noc/operations stock -- in the old-world "operations" sense, not in the
"systems/network engineering" sense I keep seeing on recent job
advertisements. Integration with Unix/Linux is awesome, a black box product
which boots Linux/*BSD kernel is fine, but the "black box" part is fairly
crucial.
Cameras already exist, we're just looking at the concentrator/storage options.
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