Just ordered the IPC-HDW4431C-A

nayr said:
must be a Quebec thing to put your underwear on a WebCam..

the WDR on these cameras is great, so much better than DWDR..
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Hehehe

Nothing to hide.

I have to say @nayr that your night pics are awesome. We can see for sure the added ir lights does help a lot.
 
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The WDR of dahua is really working great, but sometimes when there is no sun, the picture will be to dark. And 50% is normally the best one. You will also need to use 3dnr when using wdr, because the noise in the dark areas is really big.

The high power single ir led are not bad, but i also think in most outdoor cases they are not the ideal solution. A separately ir spot has also the advantages for rainy weather and much less irritation for ivs for flying objekt or spyders. And with the higher power you receive a higher shutter speed with lower gain and therefore less motion blur!
 
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iframes are full images, everything between iframes is a difference between the current image and the image before it and the image before it, etc. all the way back to the last iframe.

iframes == fps means once per second you get an iframe.. this makes video playback start quicker, because a stream/video wont start playing until the first iframe is received, and it allows the video to recover from corruption or dropped frames quicker..

or example if your switching video streams and iframes = 2s, it could take up to 2s for the change to occur whereas it'd never take longer than a second with it @ the fps.. same thing if your recording on motion trigger, if you have a 4s pre-record and a 2s iframe, you could end up w/only half of the pre-record and how much pre-record you get would vary noticeably.

the downside is it causes the image to kinda flicker once a second as a fresh iframe comes in and the heaviest compression is washed away.. its also going to increase overall traffic and storage requirements as iframes are the heaviest ones, if your playing back with say software acceleration only it can cause a noticeable slow down every second as you try to process them.
 
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@nayr or other user here !!

My camera resets itself once a week. I configured it that way. Not sure if it's a good thing or not. Today I noticed that my WDR was OFF after the reset occured...even if the setting was ok. I managed to put it back on....but it's looks like a bug....

Does it happened to you ?
 
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dont have your cameras reset automatically unless you need to..

you may have not saved the wdr being on, you can check boxes on and they take effect immideately.. but if you forget to save it wont be retained.. its incase you screw up your settings
 
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GuiBou said:
@nayr or other user here !!

My camera resets itself once a week. I configured it that way. Not sure if it's a good thing or not. Today I noticed that my WDR was OFF after the reset occured...even if the setting was ok. I managed to put it back on....but it's looks like a bug....

Does it happened to you ?
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Dont configure it to reset its self. not necessary. Introduces more problems. Mine never looses settings and i never reboot it.
 
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Just an update. It's still my only IP camera, planning to add a couple more (maybe this model or maybe not). It's been working almost flawlessly at the same spot outside since October...and man the weather is not so nice here...so I'm very happy with it !

With the picture you can play "spot the camera", (sorry for the bad quality)
IMG_20170213_112812.jpg:)
 
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I don´t understand the recommendation, not to reboot regularly. Why should this cause problems? I haven´t noticed any negative effects for it. Of cause, a perfect working firmware doesn´t need it, but any memory leakage or other problem can cause an unattended cam to go offline, hung up or having malfunctions. If the user doesn´t recognise it, it´s not so nice ... Or do you check regularly all functions? What would you do, when you are in holidays and exactly now the cam goes offline?

So for this reason many security solutions will reboot after a few days, to be sure keeping it fully functional. You can also activate in the email settings keep alive, then you will receive mails after a specific time to see the cam is still online if you don´t use other notifying options.

Anywhere you don´t loose anything, as long it´s really stored in memory, but gets an fallout protection. I think this is more useful. So my advice is to left it on. How much more secure it should be, depends on the usage.

@GuiBou, i would like to see cam cam picture of the snow :D it looks as if you have more than needed.:rolleyes:
 
Well I don't reboot it, I should check the "uptime" somewhere...but it's PLENTY reliable for me !

For your special request, here ya go ! (See pic)

If you can see the brown fence at the top of the picture, it's about 6' high !!! We don't know where to put the snow....rough winter this year :) another 15cm is coming in less than two days...damn.
TODAY :
SNOW!.jpg
October 3rd 2016
20161003_180413.jpg
 
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Dont reboot if you dont need to; why? because Murphy's a fucking asshole.. the odds are too high that someone will break into your car as your cameras are rebooting.

one of the first thing's I do on every Dahua is uncheck auto-maintain; never needed it.. cameras get months and months of uptime w/out any issue.
 
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@GuiBou i remember pics from you without snow. I love snow, but where i live, we have it only sometimes for very less days a year.

@nayr, this is speaking for a good and stable firmware. good to know. Luckily the cams reboots not to the same time, it´s varying within an hour. A reboot for non ptz cams is really fast, less than one minute. It´s sounds like an lottery win if both will come together. I would rate the odds as much lower. But for setups where the owner is using it frequently i agree to you.
It would be nice to know if Dahua uses a hardware watchdog. Sonia seems to be a software one?
 
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its got a hardware watchdog; kill sonia and the camera will reboot within 30s because it failed to check in w/the hardware watchdog.

Murphy's bit me in the ass; when I bought my 6TB HDD I took my NVR down one night to more than double its storage capacity.. what a great thing, now I'll have over 3 weeks of Video Storage.. was what I was thinking to my self when my alert went off that my mailbox was accessed.. look over at my display to see my PTZ zooming in on some fat kid in my mailbox; go outside and chase the punk up the hill on his bike, got close enough to hit his back tie with my bat hard enough to warp his rim and then just watched him wobble away as I gasped for breath.. I bet he was having a heartattack trying to pedal that fixed gear faster than I can run up a hill

Was only supposed to be a 10min downtime tops; and thats when some lucky punk managed to try to steal from me and nothing got recorded.. The cops came quicker than they had ever before; people all over the area had mail stolen in the preceding weeks and everyone was on the lookout for that bastard.
 
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you are right i remember.
To beat Murphys law, you maybe has everything with double to triple faulty safety :p, of cause this is also no warranty for everything. Maybe it´s cheaper and safer to live somewhere else ;) Luckily where i am living, although it´s a small city i am far away from this problems. I saw your gun shooting video... I won´t live in your area.
 
I grew up out in the middle of nowhere in Farm Country; was not any better.. Meth heads were stealing anything not bolted down there too, but you could be pretty much certain everyone was packing a firearm and the cops were 20mins away so you better have enough ammo to hold em off for a good while heh.

I walk around Denver late at night without any fear and our neighborhood is nice, its just not in Suburbia with the crackerjack houses and HOA's, so there is about 11 ways into our neighborhood with highly used bike paths and public transit links surrounding us.. not to mention all the office buildings nearby and it seems the employees like to stroll through the neighborhoods on lunch.. We simply get far too much traffic coming through, if its 2AM and your drunk trying to walk home your gonna cut down my street and stay off the main thoroughfare where the cops are bound to pick you up.. most of em are harmless drunks and dont cause problems; unless there idiots throwing up gang signs that attract attention.

I was born in the hood, with entrenched poverty and real gangs.. so parents moved out to farm country.. Ive seen it all; people suck no matter where you live.. tho with the sheer number of people here im surprised so little of them suck.. were all pretty chilled out overall compared to what Ive seen, Ive been most of the largest cities in the world, even Berlin..
 
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nayr said:
I grew up out in the middle of nowhere in Farm Country; was not any better.. Meth heads were stealing anything not bolted down there too, but you could be pretty much certain everyone was packing a firearm and the cops were 20mins away so you better have enough ammo to hold em off for a good while heh.

I walk around Denver late at night without any fear and our neighborhood is nice, its just not in Suburbia with the crackerjack houses and HOA's, so there is about 5 ways into our neighborhood with highly used bike paths and public transit links surrounding us.. not to mention all the office buildings nearby and it seems the employees like to stroll through the neighborhoods on lunch.. We simply get far too much traffic coming through, if its 2AM and your drunk trying to walk home your gonna cut down my street and stay off the main thoroughfare where the cops are bound to pick you up.. most of em are harmless drunks and dont cause problems; unless there idiots throwing up gang signs that attract attention.

I was born in the hood, with entrenched poverty and real gangs.. so parents moved out to farm country.. Ive seen it all; people suck no matter where you live.. tho with the sheer number of people here im surprised so little of them suck.. were all pretty chilled out overall compared to what Ive seen, Ive been most of the largest cities in the world, even Berlin..
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I really like reading your stories. Not always happy but still...These days, nobody can run in my backyard I tell you...not even a deer. :P
 
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GuiBou said:
Well I don't reboot it, I should check the "uptime" somewhere...but it's PLENTY reliable for me !

For your special request, here ya go ! (See pic)

If you can see the brown fence at the top of the picture, it's about 6' high !!! We don't know where to put the snow....rough winter this year :) another 15cm is coming in less than two days...damn.
TODAY :
View attachment 15093
October 3rd 2016
View attachment 15096
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Holy fuck dude did you have a blizzard ,never seen so much snow in my life ..great pics
 
Camit said:
Holy fuck dude did you have a blizzard ,never seen so much snow in my life ..great pics
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hehe don't know if I should say thanks...or just...be it. :)
In "recent" years, we had 400cm for the 400th anniversary of Quebec city in 2008 :) This winter is getting close to this I guess. I live just the other side of the St-Lawrence river. I shovel at least once a week, at least a foot of snow (about 30cm here) ! Sometimes heavy, sometimes pretty "fluffy" ! Snow falls here is almost always with strong wind. A bit worse...last year we had almost no snow before Christmas...this year we had our first (or second?) blizzard on November 30th !

I wish I knew a lot of words to describe snow in English, in Quebec in French we have a lot...
 
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