|
That's a WTF bug if I ever saw one. Especially since many people have probably intentionally turned down its visibility to avoid the nags until they're ready to reboot. 
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
|
|
|
|
|
I've almost never had a painfree experience trying to install more than a year's worth of updates to Windows in a single go.
My (unproven) theory, from manually batching the installs 20 or so at a time, is that just as it shows the list of available updates with the newest ones at top it tries to install them that way; and then horks all over itself with dependency hell. Installing from the bottom of the list (oldest first) has always ended up working less painfully.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
|
|
|
|
|
Excellent point.
Charlie Gilley
<italic>Stuck in a dysfunctional matrix from which I must escape...
"Where liberty dwells, there is my country." B. Franklin, 1783
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
|
|
|
|
|
The actual look of a very first
|
|
|
|
|
O....Kay...
Thank you for that informative and entertaining information.
Now, would you care to try again but remembering that we have no idea what the heck you are talking about this time?
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
Should i post a suggestion to add 'Unclear/Incomplete' flag in forums also?
Programmer : A machine that converts coffee into code !
|
|
|
|
|
The Spam flag is enough. 
[edit]
The you-know-what filter did not like the word ess-pee-ay-em above. I wonder if this edit will pass muster.
[/edit]
modified 11-Jul-15 5:52am.
|
|
|
|
|
|
Have you really been far as decided to use even go want to do look more like?
|
|
|
|
|
No, just the opposite, in fact 
while (true) {
continue;
}
|
|
|
|
|
I concur, sort of, perhaps, maybe for sure.
- I would love to change the world, but they won’t give me the source code.
|
|
|
|
|
swdfcvjn wrote: The actual look of a very first
Got it.
The size of the Big Bang just before the universe was created ... was small enough not to be visible to our eyes ...
... just as the unseen full-stop at end of your statement 
The Big Bang was indeed a very first
modified 12-Jul-15 2:46am.
|
|
|
|
|
Pah!
The big bag was just a blip in an endless cycle of cosmic recycling!
|
|
|
|
|
AVIST[^]
What do you mean it wasn't a crossword clue?
|
|
|
|
|
How could an "enterprise" (e.g., a multi-story hotel or a shopping mall parking lot supervisor or whatever) save a whopping quantity of data ? The quantity I'm considering would not work with on-site storage; this quantity would have to be off-site.
Off the top of my head, I'm thinking...
- One solid week (168 hours)
- Five hundred video cameras
- 720p continual video monitoring
- Typical video quality for that resolution
- Color, infrared, nite-vision, whatever, as the mood strikes
Bandwidth alone would be really huge. Just did the math and a bluetooth connection wouldn't keep up with the first screen scan (anybody, please correct any bad arithmetic).
Is this even possible in the first place ?
Looks like 557,383,680,000 bytes of just data; no protocol or formatting, from one camera.
Is that about half a Terabyte ?
|
|
|
|
|
|
|
I think you're overestimating: video data is pretty well compressed, and video camera data compresses very well as most of the frame tends to be identical to the last - in many cases the image a camera sees won't change for days!
Give it a try: see how much data you get from a single camera in a "busy" location and base estimates for all cameras on that.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
I agree with Griff - video compression is pretty good these days. You need to note that MOST of your video data will not be changing (think camera staring at hallway all night). This is definitely something to test how it scales.
Need some help? Sounds like an interesting project
Some other thoughts:
- is it a requirement that you store 168 hours? Does it roll over at that point?
What I'm thinking is the way a dash cam works - it basically keeps the last 30
minutes of video, looping along until you hit the save button. Maybe you could keep
the last 24 hours? - Offsite storage might be best, but you're really going to need local storage for the
initial feed, the OC3 line will cost more than the storage
Charlie Gilley
<italic>Stuck in a dysfunctional matrix from which I must escape...
"Where liberty dwells, there is my country." B. Franklin, 1783
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
|
|
|
|
|
Duh. Never thunk it. You been doing this awhile ? You obviously have some active brain cells in this domain.
|
|
|
|
|
I did some work in the past with video compression and real-time video mixing for defense applications. Pretty cool things you can do with the right hardware. These days, there is so much COTS technology. And if you cannot find exactly what you want, it would not be hard to find a h/w engineers to whip up a custom board. Just look at what people are doing with all of the Arduino tech.
The general security companies I've seen are sort of stuck behind the times, but they are starting to get new blood and ideas. But their prices are up there.
One thing if you do dabble in this area - security is all important. There are so many systems open to hackers with an IQ of 80 or less. The developers are just criminal in their negligence. So - all comms have to be encrypted.
Charlie Gilley
<italic>Stuck in a dysfunctional matrix from which I must escape...
"Where liberty dwells, there is my country." B. Franklin, 1783
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
|
|
|
|
|
I've done a bit of many things! 
I've not done any real work into security video, but I know some bits about video generally and I'm good at looking at situations and analysing them, is all.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
Quote: The quantity I'm considering would not work with on-site storage; this quantity would have to be off-site.
Why?
What is the use case for the data? If it is purely for security, and will only be reviewed after an incident, then majority of it will be written, archived for a week, and finally deleted. Why set up a system to move all that data around? Keep it as close to the camera as possible.
I'd look at a node consisting of simple PC, redundant storage, recording from several cameras, connected to dedicated security (preferably wired) network and accessible from central control station. Easier to add more cameras too.
When access to the video is required, simply copy relevant files based on incident time to a central location.
|
|
|
|
|
NeverJustHere wrote: (preferably wired)
How come ?
Just for reference, in this case at least two different humans will be viewing the same camera, and as many as 25 at one time.
|
|
|
|
|
If someone figures out the security system is dependent on WiFi (or buys the details from a disgruntled ex-employee), then they can jam frequencies or perform denial of service attacks to mess with the system. Wired would not have this problem.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
